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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 20-F

(Mark One)

or

For the fiscal year ended December 31, 2017.

or

For the transition period from                 to                 

or

Date of event requiring this shell company report

For the transition period from                      to                     

Commission file number: 001-36765

Momo Inc.

(Exact name of Registrant as specified in its charter)

N/A

(Translation of Registrant’s name into English)

Cayman Islands

(Jurisdiction of incorporation or organization)

20^th Floor, Block B

Tower 2, Wangjing SOHO

No.1 Futongdong Street

Chaoyang District, Beijing 100102

People’s Republic of China

(Address of principal executive offices)

Jonathan Xiaosong Zhang, Chief Financial Officer

Telephone: +86-10-5731-0567

Email: ir@immomo.com

20^th Floor, Block B

Tower 2, Wangjing SOHO

No.1 Futongdong Street

Chaoyang District, Beijing 100102

People’s Republic of China

(Name, Telephone, Email and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act:

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None

(Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None

(Title of Class)

Indicate the number of outstanding shares of each of the Issuer’s classes of capital or common stock as of the close of the period covered by the annual report. 314,060,843 Class A ordinary shares and 84,364,466 Class B ordinary shares, par value US$0.0001 per share, as of December 31, 2017.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☒    No  ☐

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.    Yes  ☐    No  ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

If a an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.    Item 17  ☐    Item 18  ☐

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

(APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS)

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.    Yes  ☐    No  ☐

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INTRODUCTION

In this annual report, except where the context otherwise requires and for purposes of this annual report only:

Our reporting and functional currency is U.S. dollar. This annual report contains translations of certain foreign currency amounts into U.S. dollars for the convenience of the reader. Unless otherwise stated, all translations of Renminbi into U.S. dollars were made at the rate at RMB6.5063 to US$1.00, the exchange rate as set forth in the H.10 statistical release of the Board of Governors of the Federal Reserve System in effect as of December 29, 2017. We make no representation that the Renminbi or U.S. dollar amounts referred to in this annual report could have been or could be converted into U.S. dollars or Renminbi, as the case may be, at any particular rate or at all. On April 20, 2018, the noon buying rate for Renminbi was RMB 6.2945 to US$1.00.

FORWARD-LOOKING INFORMATION

This annual report on Form 20-F contains forward-looking statements that reflect our current expectations and views of future events. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. You can identify these forward-looking statements by words or phrases such as “may,” “could,” “should,” “would,” “will,” “expect,” “anticipate,” “aim,” “estimate,” “intend,” “plan,” “believe,” “likely to,” “project,” “continue,” “potential” or other similar expressions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. These forward-looking statements include, but are not limited to, statements about:

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You should not place undue reliance on these forward-looking statements and you should read these statements in conjunction other sections of this annual report, in particular the risk factors disclosed in “Item 3. Key Information—D. Risk Factors.” These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements. Moreover, we operate in a rapidly evolving environment. New risks emerge from time to time and it is impossible for our management to predict all risk factors, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ from those contained in any forward-looking statement. The forward-looking statements made in this annual report relate only to events or information as of the date on which the statements are made in this annual report. We do not undertake any obligation to update or revise the forward-looking statements except as required under applicable law.

PART I

Not applicable.

Not applicable.

The following table presents the selected consolidated financial information of our company. The selected consolidated statements of comprehensive (loss) income data for the years ended December 31, 2015, 2016 and 2017 and the selected consolidated balance sheets data as of December 31, 2016 and 2017 have been derived from our audited consolidated financial statements included in this annual report beginning on page F-1. The selected consolidated statements of comprehensive (loss) income data for the years ended December 31, 2013 and 2014 and the selected consolidated balance sheets data as of December 31, 2013, 2014 and 2015 have been derived from our audited consolidated financial statements not included in this annual report. Our audited consolidated financial statements are prepared and presented in accordance with accounting principles generally accepted in the United States, or U.S. GAAP. Our historical results do not necessarily indicate results expected for any future period. You should read the following selected financial data in conjunction with the consolidated financial statements and related notes and “Item 5. Operating and Financial Review and Prospects” included elsewhere in this annual report.

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Notes:

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The following table presents our selected consolidated balance sheet data as of December 31, 2013, 2014, 2015, 2016 and 2017.

Not applicable.

Not applicable.

Risks Related to Our Business and Industry

If we fail to retain our existing users, further grow our user base, or if user engagement on our platform declines, our business and operating results may be materially and adversely affected.

The size of our user base and the level of our user engagement are critical to our success. Although our MAUs generally grew over time since our inception, there were times when our user base failed to grow as we expected. For example, the growth rate of our MAUs significantly decreased in 2015 primarily due to the reduced growth of number of smartphone users in China, and upgrades to our platform that take time for users to adapt to. There is no guarantee that our MAUs will continue to grow at a desirable rate or at all. Growing our user base and increasing the overall level of user engagement on our social networking platform and in particular our live video service, which currently contributes a majority of our revenues, are critical to our business. If our user growth rate slows down, as it did in 2015, our success will become increasingly dependent on our ability to retain existing users and enhance user engagement on our platform. If our Momo mobile application is no longer one of the social networking tools that people frequently use, or if people do not perceive our services to be interesting or useful, we may not be able to attract users or increase the frequency or degree of their engagement. A number of user-oriented instant communication products that achieved early popularity have since seen the size of their user base or level of user engagement decline, in some cases precipitously. There is no guarantee that we will not experience a similar erosion of our user base or user engagement level in the future. A number of factors could negatively affect user retention, growth and engagement, including if:

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If we are unable to grow our user base or enhance user engagement, our platform will become less attractive to our users, customers and platform partners, which would have a material and adverse impact on our business and operating results.

We cannot guarantee that the monetization strategies we have adopted will be successfully implemented or generate sustainable revenues and profits.

As online social networking and online entertainment industries in China are relatively young, prevailing monetization models similar to ours have yet to be proven to be sustainable, and it may be more difficult to predict user and customer behaviors and demands compared to other established industries. Our monetization model has been evolving. We began to generate revenues in the second half of 2013 primarily through membership subscriptions and also game publishing and other services, but we continue to explore and implement new monetization models. While membership subscriptions contributed a majority of our revenues prior to 2016, live video service, which we launched in September 2015 and adopted a virtual items-based revenue model, has replaced membership subscription as our major source of revenues in 2016 and 2017. The services that we currently provide, including live video service, value-added service (comprising membership subscriptions and virtual gift service), mobile marketing services, mobile games, and other services, contributed approximately 83.6%, 7.8%, 5.8%, 2.7% and 0.1%, respectively, of our net revenues in 2017. Apart from live video services, from time to time we have launched new services on our platform, explored new monetization models and broadened our revenue sources, and we expect to continue to do so. For example, in February 2015, we launched our first self-developed game on our platform, which generated revenues through in-game purchases of virtual items. In the second quarter of 2015, we launched our in-feed marketing solutions powered by a proprietary self-served advertising system, and started to offer brand-oriented display ads and action-driven ad products such as app downloads. In the fourth quarter of 2016, we launched a virtual gift service which allows our users to purchase and send virtual gifts to other users outside of live video service. However, there is no assurance that any of these and other new monetization models would be profitable or sustainable. If our strategic initiatives do not enhance our ability to monetize our existing services or enable us to develop new approaches to monetization, we may not be able to maintain or increase our revenues and profits or recover any associated costs.

We may in the future introduce new services to further diversify our revenue streams, including services with which we have little or no prior development or operating experience. If these new or enhanced services fail to engage users, customers or platform partners, we may fail to attract or retain users or to generate sufficient revenues to justify our investments, and our business and operating results may suffer as a result.

We have a limited operating history in a dynamic market, which makes it difficult to evaluate our future prospects.

The market for social networking platforms is relatively new, highly dynamic and may not develop as expected. Our users, customers and platform partners may not fully understand the value of our services, and potential new users, customers and platform partners may have difficulty distinguishing our services from those of our competitors. Convincing potential users, customers and platform partners of the value of our services is critical to the growth of our user base and the success of our business.

We launched our Momo mobile application in August 2011. The relatively short operating history and our evolving monetization strategies make it difficult to assess our future prospects or forecast our future results. You should consider our business and prospects in light of the risks and challenges we encounter or may encounter in this developing and rapidly evolving market. These risks and challenges include our ability to, among other things:

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If we fail to educate potential users, customers and platform partners about the value of our services, if the market for our platform does not develop as we expect or if we fail to address the needs of this dynamic market, our business will be harmed. Failure to adequately address these or other risks and challenges could harm our business and cause our operating results to suffer.

We currently generate a substantial majority of our revenues from our live video service. We may not be able to continue to grow or continue to achieve profitability from such service.

In September 2015, we launched our live video service with a virtual items-based revenue model, whereby users can enjoy live performances and interact with the broadcasters for free, and have the option of purchasing in-show virtual items. We have achieved initial success for this service, which contributed US$376.9 million and US$1,102.6 million to, or 68.1% and 83.6% of, our net revenues in 2016 and 2017, respectively. While we plan to continue to invest significantly in expanding our live video service, we may not be able to continue to achieve the level of profitability based on the virtual items-based revenue model, as we have relatively little experience in operating such service. In addition, popular broadcasters may cease to use our service and we may be unable to attract new talents that can attract users or cause such users to increase the amount of time spent on our platform or the amount of money spent on in-show virtual items.

Under our current arrangements with our broadcasters, including popular broadcasters and our other users, we share with them a portion of the revenues we derive from the sales of in-show virtual items in our live video service. Although we believe we have a large and diversified pool of talented broadcasters as well as paying users, which allows us to effectively control the risk of revenue concentration, if a large number of our broadcasters, particularly popular broadcasters, were to leave our platform for competing platforms at the same time, or if a large number of our users decided to use live video services provided by our competitors, we might not be able to expand the user base of our live video service and achieve or maintain the level of revenues and profitability as we currently anticipate.

We may not be able to successfully maintain and increase the number of paying users for the various services we offer on our platform.

Our future growth depends on our ability to convert our users into paying users of our services, including live video service, value-added service, mobile games and other services, and our ability to retain our existing paying users. However, we cannot assure you that we will be successful in any of the foregoing initiatives, nor can we assure you that we will be able to successfully compete with current and new competitors on attracting paying users. We had 10.3 million paying users for our live video service in 2017, compared to 5.6 million in 2016. For value-added services, we had 7.2 million paying users in 2017, compared to 3.7 million in 2016. Our efforts to provide greater incentives for our users to pay for our various services may not continue to succeed. Our paying users may discontinue their spending on our services because they may no longer serve our paying users’ needs, or simply because the interests and preferences of these users shift. If we cannot successfully maintain or increase the number of our paying users, our business, results of operations and prospects will be adversely affected.

The loss of marketers, or reduction in spending by marketers, could harm our business.

Our mobile marketing services generated 29.0%, 12.0% and 5.8% of our revenues in 2015, 2016 and 2017, respectively. Currently our mobile marketing services primarily comprise in-feed marketing solutions and brand-oriented display ads. As is common in the industry, our marketers do not have long-term advertising commitments with us. Many of our marketers spend only a relatively small portion of their overall advertising budgets with us. In addition, marketers may view some of our products as experimental and unproven. Marketers may not continue to do business with us, or they may advertise with us based on terms unfavorable to us, if we do not deliver our marketing solutions in an effective manner, or if they do not believe that their investment in advertising with us will generate a competitive return relative to other alternatives. For example, failure to maintain or increase the quantity or quality of ads shown to users, or a decrease in user engagement may cause marketers to reduce or cease their spending on our mobile marketing services.

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In addition, expenditures by marketers tend to be cyclical, reflecting overall economic conditions and budgeting and buying patterns. Adverse macroeconomic conditions can also have a material negative impact on the demand for advertising and cause our marketers to reduce the amounts they spend on advertising, which could adversely affect our revenues and business.

Our business is dependent on the strength of our brand and market perception of our brand.

In China, we market our services under the brand “陌陌” or “Momo.” Our business and financial performance are highly dependent on the strength and the market perception of our brand and services. A well-recognized brand is critical to increasing our user base and, in turn, facilitating our efforts to monetize our services and enhancing our attractiveness to customers. From time to time, we conduct marketing activities across various media to enhance our brand and to guide public perception of our brand and services. In order to create and maintain brand awareness and brand loyalty, to influence public perception and to retain existing and attract new mobile users, customers and platform partners, we may need to substantially increase our marketing expenditures. We cannot assure you, however, that these activities will be successful or that we will be able to achieve the brand promotion effect we expect.

In addition, people may not understand the value of our platform, and there may be a misperception that Momo is used solely as a tool to randomly meet or date strangers. Convincing potential new users, customers and platform partners of the value of our services is critical to increasing the number of our users, customers and platform partners and to the success of our business.

Negative publicity may harm our brand and reputation and have a material adverse effect on our business and operating results.

Negative publicity involving us, our users, our management, our social networking platform or our business model may tarnish our reputation and materially and adversely harm our brand and our business. We cannot assure you that we will be able to defuse negative publicity about us, our management and/or our services to the satisfaction of our investors, users, customers and platform partners. There has been negative publicity about our company and the misuse of our services, which has adversely affected our brand, public image and reputation. Such negative publicity, especially when it is directly addressed against us, may also require us to engage in defensive media campaigns. This may cause us to increase our marketing expenses and divert our management’s attention and may adversely impact our business and results of operations.

Any legal action, regardless of its merits, could be time consuming and could divert the attention of our management away from our business and a failure of any legal action may bring negative impact on our reputation and cause a loss of our brand equity, which would reduce the use of our platform and demand for our services. Moreover, any attempts to rebuild our reputation and restore the value of our brand may be costly and time consuming, and such efforts may not ultimately be successful.

User misconduct and misuse of our platform may adversely impact our brand image, and we may be held liable for information or content displayed on, retrieved from or linked to our platform, which may materially and adversely affect our business and operating results.

Our platform allows mobile users to freely contact and communicate with people nearby, and our live video service allows users to host and view live shows. Because we do not have full control over how and what users will use our platform to communicate, our platform may be misused by individuals or groups of individuals to engage in immoral, disrespectful, fraudulent or illegal activities. For example, on a daily basis we detect spam accounts through which illegal or inappropriate content is posted and illegal or fraudulent activities are conducted. Media reports and internet forums have covered some of these incidents, which have in some cases generated negative publicity about our brand and platform. We have implemented control procedures to detect and block illegal or inappropriate content and illegal or fraudulent activities conducted through the misuse of our platform, but such procedures may not prevent all such content from being broadcasted or posted or activities from being carried out. Moreover, as we have limited control over real-time and offline behaviors of our users, to the extent such behaviors are associated with our platform, our ability to protect our brand image and reputation may be limited. Our business and the public perception of our brand may be materially and adversely affected by misuse of our platform.

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In addition, if any of our users suffers or alleges to have suffered physical, financial or emotional harm following contact initiated on our platform, we may face civil lawsuits or other liabilities initiated by the affected user, or governmental or regulatory actions against us. In response to allegations of illegal or inappropriate activities conducted through our platform or any negative media coverage about us, PRC government authorities may intervene and hold us liable for non-compliance with PRC laws and regulations concerning the dissemination of information on the internet and subject us to administrative penalties or other sanctions, such as requiring us to restrict or discontinue some of the features and services provided on our mobile application. Therefore, our live video service may be subject to investigations or subsequent penalties if contents contained in the live videos are deemed to be illegal or inappropriate under PRC laws and regulations. See “—Risks Related to Doing Business in China—If we fail to obtain and maintain the requisite licenses and approvals required under the complex regulatory environment applicable to our businesses in China, or if we are required to take compliance actions that are time-consuming or costly, our business, financial condition and results of operations may be materially and adversely affected.” As a result, our business may suffer and our user base, revenues and profitability may be materially and adversely affected, and the price of our ADSs may decline.

The market in which we operate is fragmented and highly competitive. If we are unable to compete effectively for users or user engagement, our business and operating results may be materially and adversely affected.

As a social networking platform that provides multiple services, including live video service, value-added service, mobile marketing services and other services, we are subject to intense competition from providers of similar services, as well as potential new types of online services. Our competitors may have substantially more cash, traffic, technical, broadcasters, business networks and other resources, as well as broader product or service offerings and can leverage their relationships based on other products or services to gain a larger share of marketing budgets. We may be unable to compete successfully against these competitors or new market entrants, which may adversely affect our business and financial performance.

We believe that our ability to compete effectively depends upon many factors both within and beyond our control, including:

If we fail to keep up with technological developments and evolving user expectations, we may fail to maintain or attract users, customers or platform partners, and our business and operating results may be materially and adversely affected.

We operate in a market characterized by rapidly changing technologies, evolving industry standards, new product and service announcements, new generations of product enhancements and changing user expectations. Accordingly, our performance and the ability to further monetize the services on our platform will depend on our ability to adapt to these rapidly changing technologies and industry standards, and our ability to continually innovate in response to both evolving demands of the marketplace and competitive services. There may be occasions when we may not be as responsive as our competitors in adapting our services to changing industry standards and the needs of our users. Historically, new features may be introduced by one player in the industry, and if they are perceived as attractive to users, they are often quickly copied and improved upon by others.

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Introducing new technologies into our systems involves numerous technical challenges, substantial amounts of capital and personnel resources and often takes many months to complete. For example, the market for mobile devices in China is highly fragmented, and the lower resolution, functionality, operating system compatibility and memory currently associated with the kaleidoscopic models of mobile devices in the Chinese marketplace may make the use of our services through these devices more difficult and impair the user experience. We intend to continue to devote resources to the development of additional technologies and services. We may not be able to effectively integrate new technologies on a timely basis or at all, which may decrease user satisfaction with our services. Such technologies, even if integrated, may not function as expected or may be unable to attract and retain a substantial number of mobile device users to use our Momo mobile application. We also may not be able to protect such technology from being copied by our competitors. Our failure to keep pace with rapid technological changes may cause us to fail to retain or attract users or generate revenues, and could have a material and adverse effect on our business and operating results.

If we fail to effectively manage our growth and control our costs and expenses, our business and operating results could be harmed.

We have experienced rapid growth in our business and operations and expansion of our platform since our inception in 2011, which places significant demands on our management, operational and financial resources. However, given our limited operating history and the rapidly evolving market in which we compete, we may encounter difficulties as we establish and expand our operations, product development, sales and marketing, and general and administrative capabilities. We face significant competition for talented employees from other high-growth companies, which include both publicly traded and privately held companies, and we may not be able to hire new talents quickly enough to meet our needs and support our operations. If we fail to effectively manage our hiring needs and successfully integrate our new hires, our efficiency and ability to meet our forecasts and our employee morale, productivity and retention could suffer, and our business and operating results could be adversely affected.

We expect our costs and expenses to continue to increase in the future as we seek to broaden our user base and increase user engagement, and develop and implement new features and services. In addition, our cost and expenses, such as our research and development expenses, sales and marketing expenses and general and administrative expenses, have grown rapidly as we expanded our business. Historically, our costs and expenses have increased each year, and we expect to continue to incur increasing costs and expenses to support our anticipated future growth. Continued growth could also strain our ability to maintain reliable service levels for our users and customers, develop and improve our operational, financial, legal and management controls, and enhance our reporting systems and procedures. If we are unable to generate adequate revenues and to manage our expenses, we may again incur significant losses in the future and may not be able to maintain profitability. Our expenses may grow faster than our revenues, and our expenses may be greater than we anticipate. Managing our growth will require significant expenditures and the allocation of valuable management resources. If we fail to achieve the necessary level of efficiency in our organization as we grow, our business, operating results and financial condition could be harmed.

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We may not be able to remain profitable.

We believe that our future revenue growth will depend on, among other factors, the popularity of social networking applications, as well as our ability to attract new users, increase user engagement, effectively design and implement monetization strategies, develop new services and compete effectively and successfully. In addition, our ability to sustain profitability is affected by various factors, many of which are beyond our control, such as the continuous development of social networking, live video services, mobile marketing services, and mobile games in China. We may again incur losses in the near future due to our continued investments in services, technologies, research and development and our continued sales and marketing initiatives. Changes in the macroeconomic and regulatory environment or competitive dynamics and our inability to respond to these changes in a timely and effective manner may also impact our profitability. Accordingly, you should not rely on the revenues of any prior quarterly or annual period as an indication of our future performance.

Privacy concerns relating to our services and the use of user information could negatively impact our user base or user engagement, or subject us to governmental regulation and other legal obligations, which could have a material and adverse effect on our business and operating results.

We collect user profile, user location and other personal data from our users in order to better understand our users and their needs and to support our social interest graph engine and our big data analytical capabilities for more targeted services such as interest- or location-based user groups and mobile marketing services. Concerns about the collection, use, disclosure or security of personal information, chat history or other privacy-related matters, even if unfounded, could damage our reputation, cause us to lose users, customers and platform partners and subject us to regulatory investigations, all of which may adversely affect our business. While we strive to comply with applicable data protection laws and regulations, as well as our privacy policies pursuant to our terms of use and other obligations we may have with respect to privacy and data protection, any failure or perceived failure to comply with these laws, regulations or policies may result, and in some cases have resulted, in inquiries and other proceedings or actions against us by government agencies or others, as well as negative publicity and damage to our reputation and brand, each of which could cause us to lose users, customers and platform partners and have an adverse effect on our business and operating results.

Any system failure or compromise of our security that results in the unauthorized access to or release of the data or chat history of our users, customers or platform partners could significantly limit the adoption of our services, as well as harm our reputation and brand. We expect to continue expending significant resources to protect against security breaches. The risk that these types of events could seriously harm our business is likely to increase as we expand the number of services we offer and increase the size of our user base.

Our practices may become inconsistent with new laws or regulations concerning data protection, or the interpretation and application of existing consumer and data protection laws or regulations, which is often uncertain and in flux. If so, in addition to the possibility of fines, this could result in an order requiring that we change our practices, which could have an adverse effect on our business and operating results. Complying with new laws and regulations could cause us to incur substantial costs or require us to change our business practices in a manner materially adverse to our business. See also “—Risks Related to Doing Businesses in China—Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us.”

The continuing and collaborative efforts of our senior management and key employees are crucial to our success, and our business may be harmed if we were to lose their services.

We depend on the continued contributions of our senior management, especially the executive officers listed in “Item 6. Directors, Senior Management and Employees—A. Directors and Senior Management” section of this annual report, and other key employees, many of whom are difficult to replace. The loss of the services of any of our executive officers or other key employees could materially harm our business. Competition for qualified talents in China is intense. Our future success is dependent on our ability to attract a significant number of qualified employees and retain existing key employees. If we are unable to do so, our business and growth may be materially and adversely affected and the trading price of our ADSs could suffer. Our need to significantly increase the number of our qualified employees and retain key employees may cause us to materially increase compensation-related costs, including stock-based compensation.

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We may not be able to adequately protect our intellectual property, which could cause us to be less competitive and third-party infringements of our intellectual property rights may adversely affect our business.

We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. See also “Item 4. Information on the Company—B. Business Overview.” Despite our efforts to protect our proprietary rights, third parties may attempt to copy or otherwise obtain and use our intellectual property or seek court declarations that they do not infringe upon our intellectual property rights. Monitoring unauthorized use of our intellectual property is difficult and costly, and we cannot be certain that the steps we have taken will prevent misappropriation of our intellectual property. From time to time, we may have to resort to litigation to enforce our intellectual property rights, which could result in substantial costs and diversion of our resources.

There have been instances where third parties have cloned and launched counterfeits of our Momo mobile application on app stores or internet forums. Some of these counterfeits, once installed inadvertently by mobile users, were reported to automatically download and install other applications to these users’ mobile phones, charging them various fees. These counterfeits may mislead mobile users and negatively affect their perception of our application. Moreover, we may have to expend resources in connection with any legal actions that we take to curb these counterfeiting activities in order to protect our intellectual property rights, user experience and brand perception.

We have been and may be subject to intellectual property infringement claims or other allegations by third parties for information or content displayed on, retrieved from or linked to our platform, or distributed to our users, which may materially and adversely affect our business, financial condition and prospects.

We have been and may in the future be subject to intellectual property infringement claims or other allegations by third parties for services we provide or for information or content displayed on, retrieved from or linked to our platform, or distributed to our users, which may materially and adversely affect our business, financial condition and prospects.

Companies in the internet, technology and media industries are frequently involved in litigation based on allegations of infringement of intellectual property rights, unfair competition, invasion of privacy, defamation and other violations of other parties’ rights. The validity, enforceability and scope of protection of intellectual property rights in internet-related industries, particularly in China, are uncertain and still evolving. We face, from time to time, and expect to face in the future, allegations that we have infringed the trademarks, copyrights, patents and other intellectual property rights of third parties, including our competitors, or allegations that we are involved in unfair trade practices. For example, on October 22, 2015, we were served a civil complaint by Guangzhou Tian He People’s Court in which the plaintiff claimed that Xiaoyao Xiyou, a game that we previously operated and have ceased operating since November 2017, infringed upon the plaintiff’s copyright in works of literature and art of a game, constituting unfair competition. The plaintiff demanded that we cease the infringement and pay compensation and legal costs totaling approximately RMB10 million (US$1.5 million). On August 31, 2017, Guangzhou Tian He People’s Court ruled a civil judgement of first-instance, which ordered us and the developer of Xiaoyao Xiyou to cease the infringement and pay compensation in the amount of RMB5.0 million (US$0.8 million) to the plaintiff. The developer of Xiaoyao Xiyou filed an appeal to Guangzhou Intellectual Property Court. As a result, the first-instance judgement made by Guangzhou Tian He People’s Court did not bind us. See “Item 8. Financial Information— A. Consolidated Statements and Other Financial Information—Legal Proceedings.” As we face increasing competition and as litigation becomes a more common method for resolving commercial disputes in China, we face a higher risk of being the subject of intellectual property infringement claims.

We allow users to upload text, graphics, audio, video and other content to our platform and download, share, link to and otherwise access games and other content on our platform. We have procedures designed to reduce the likelihood that content might be used without proper licenses or third-party consents. However, these procedures may not be effective in preventing the unauthorized posting of copyrighted content. Therefore, we may face liability for copyright or trademark infringement, defamation, unfair competition, libel, negligence, and other claims based on the nature and content of the materials that are delivered, shared or otherwise accessed through our platform.

Defending intellectual property litigation is costly and can impose a significant burden on our management and employees, and there can be no assurances that favorable final outcomes will be obtained in all cases. Such claims, even if they do not result in liability, may harm our reputation. Any resulting liability or expenses, or changes required to our platform to reduce the risk of future liability, may have a material adverse effect on our business, financial condition and prospects.

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User growth and engagement depend upon effective interoperation with mobile operating systems, networks, mobile devices and standards that we do not control.

We make our services available across a variety of mobile operating systems and devices. We are dependent on the interoperability of our services with popular mobile devices and mobile operating systems that we do not control, such as Android, iOS and Windows. Any changes in such mobile operating systems or devices that degrade the functionality of our services or give preferential treatment to competitive services could adversely affect usage of our services. Further, if the number of platforms for which we develop our services increases, which is typically seen in a dynamic and fragmented mobile services market such as China, it will result in an increase in our costs and expenses. In order to deliver high-quality services, it is important that our services work well across a range of mobile operating systems, networks, mobile devices and standards that we do not control. We may not be successful in developing relationships with key participants in the mobile industry or in developing services that operate effectively with these operating systems, networks, devices and standards. In the event that it is difficult for our users to access and use our services, particularly on their mobile devices, our user growth and user engagement could be harmed, and our business and operating results could be adversely affected.

Our operations depend on the performance of the internet infrastructure and fixed telecommunications networks in China.

Almost all access to the internet in China is maintained through state-owned telecommunication operators under the administrative control and regulatory supervision of the Ministry of Industry and Information Technology, or the MIIT. Moreover, we primarily rely on a limited number of telecommunication service providers to provide us with data communications capacity through local telecommunications lines and internet data centers to host our servers. We have limited access to alternative networks or services in the event of disruptions, failures or other problems with China’s internet infrastructure or the fixed telecommunications networks provided by telecommunications service providers. Web traffic in China has experienced significant growth during the past few years. Effective bandwidth and server storage at internet data centers in large cities such as Beijing are scarce. With the expansion of our business, we may be required to upgrade our technology and infrastructure to keep up with the increasing traffic on our platform. We cannot assure you that the internet infrastructure and the fixed telecommunications networks in China will be able to support the demands associated with the continued growth in internet usage. If we cannot increase our capacity to deliver our online services, we may not be able to keep up with the increases in traffic we anticipate from our expanding user base, and the adoption of our services may be hindered, which could adversely impact our business and our ADS price.

In addition, we have no control over the costs of the services provided by telecommunications service providers. If the prices we pay for telecommunications and internet services rise significantly, our results of operations may be materially and adversely affected. Furthermore, if internet access fees or other charges to internet users increase, some users may be prevented from accessing the mobile internet and thus cause the growth of mobile internet users to decelerate. Such deceleration may adversely affect our ability to continue to expand our user base.

Our business and operating results may be harmed by service disruptions, cybersecurity related threats or by our failure to timely and effectively scale and adapt our existing technology and infrastructure.

People use our platform for real-time communication, socializing, entertainment and information. We have experienced, and may in the future experience, service disruptions, outages and other performance problems due to a variety of factors, including infrastructure changes and cybersecurity related threats as follows:

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Any disruption or failure in our services and infrastructure could also hinder our ability to handle existing or increased traffic on our platform or cause us to lose content stored on our platform, which could significantly harm our business and our ability to retain existing users and attract new users.

As the number of our users increases and our users generate more content on our platform, we may be required to expand and adapt our technology and infrastructure to continue to reliably store and analyze this content. It may become increasingly difficult to maintain and improve the performance of our services, especially during peak usage times, as our services become more complex and our user traffic increases. If our users are unable to access Momo mobile application in a timely fashion, or at all, our user experience may be compromised and the users may seek other mobile social networking tools to meet their needs, and may not return to Momo or use Momo as often in the future, or at all. This would negatively impact our ability to attract users and maintain the level of user engagement.

Existing or future strategic alliances, long-term investments and acquisitions may have a material and adverse effect on our business, reputation and results of operations.

We have made and intend to continue to make long-term investments in third-party companies. From time to time we evaluate and enter into discussions regarding potential long-term investments. Our existing and any future long-term investments could have a material impact on our financial condition and results of operations. If our long-term investments are unable to implement or remediate the necessary controls, procedures and policies, do not perform as we have expected or become less valuable to our business due to a change in our overall business strategy or other reasons, we may not be able to realize the anticipated benefits of investments and we may have to incur unanticipated liabilities, expenses, impairment charges or write-offs.

We may also in the future enter into strategic alliances with various third parties. Strategic alliances with third parties could subject us to a number of risks, including risks associated with sharing proprietary information, non-performance by a counterparty and an increase in expenses incurred in establishing new strategic alliances, any of which may materially and adversely affect our business. We may have little ability to control or monitor their actions and to the extent strategic third parties suffer negative publicity or harm to their reputation from events relating to their business, we may also suffer negative publicity or harm to our reputation by virtue of our association with such third parties.

In addition, we may acquire additional assets, technologies or businesses that are complementary to our existing business. Future acquisitions and the subsequent integration of new assets and businesses into our own would require significant attention from our management and could result in a diversion of resources from our existing business, which in turn could have an adverse effect on our business operations. Acquired assets or businesses may not generate the financial or operating results we expect. Moreover, the costs of identifying and consummating acquisitions may be significant. In addition to possible shareholders’ approval, we may also have to obtain approvals and licenses from the governmental authorities in the PRC for the acquisitions and comply with applicable PRC laws and regulations, which could result in increased costs and delays. Acquisitions could result in the use of substantial amounts of cash, potentially dilutive issuances of equity securities, the incurrence of debt, the incurrence of significant goodwill impairment charges, amortization expenses for other intangible assets and exposure to potential unknown liabilities of the acquired business. Such use of cash may add significant liquidity pressure on us by materially reducing our existing cash balance and adversely affecting our working capital. The sale of equity or equity linked securities may further dilute our existing shareholders. Debt financings may subject us to restrictive covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends.

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In February 2018, we reached a definitive agreement with Tantan Limited, or Tantan, a social and dating app in China, and all of its shareholders, pursuant to which we agreed to acquire 100% fully diluted equity stake in Tantan for a combination of share consideration and cash. The acquisition of Tantan exposes us to potential uncertainties and risks. For our acquisition of Tantan, we will pay a combination of share consideration and cash, including approximately 5.3 million newly issued Class A ordinary shares of us and US$600.9 million in cash. As Tantan was founded in 2015 and has a short operating track record, it would be difficult for us to assess its future prospect or forecast its future results and thus we may not be able to achieve the objective of our acquisition of Tantan if Tantan’s business does not develop as we expect. In addition, if Tantan incurs a net loss in the future, we would have to share its net loss as its sole shareholder, the occurrence of which would adversely affect our future profitability. After the consummation of the acquisition, we may face difficulties in integrating the internal control and financial reporting of Tantan and may incur unanticipated costs and expenses relating to such integration.

We rely on assumptions and estimates to calculate certain key operating metrics, and real or perceived inaccuracies in such metrics may harm our reputation and negatively affect our business.

The number of monthly active users of Momo is calculated using internal company data that has not been independently verified. While the number of monthly active users is based on what we believe to be reasonable calculations for the applicable periods of measurement, there are inherent challenges in measuring usage and user engagement across our large user base. We treat each account as a separate user for the purposes of calculating our monthly active users, because it may not always be possible to identify people that have set up more than one account. Accordingly, the calculations of our monthly active users may not accurately reflect the actual number of people using Momo.

Our measures of user growth and user engagement may differ from estimates published by third parties or from similarly titled metrics used by our competitors due to differences in methodology. If customers or platform partners do not perceive our user metrics to be accurate representations of our user base or user engagement, or if we discover material inaccuracies in our user metrics, our reputation may be harmed and customers and platform partners may be less willing to allocate their resources or spending to Momo, which could negatively affect our business and operating results.

We have granted, and expect to continue to grant, share options under our share incentive plans, which may result in increased share-based compensation expenses.

We have adopted three share incentive plans as of the date of this annual report for the purpose of granting share-based compensation awards to employees, directors and consultants to incentivize their performance and align their interests with ours. In November 2012, we adopted a share incentive plan, or the 2012 Plan, which was amended and restated in October 2013. In November 2014, we adopted the 2014 share incentive plan, or the 2014 Plan, pursuant to which a maximum aggregate of 14,031,194 Class A ordinary shares may be issued pursuant to all awards granted thereunder. Beginning in 2017, the number of shares reserved for future issuances under the 2014 Plan will be increased by a number equal to 1.5% of the total number of outstanding shares on the last day of the immediately preceding calendar year, or such lesser number of Class A ordinary shares as determined by our board of directors on the first day of each calendar year during the term of the 2014 Plan. With the adoption of the 2014 Plan, we will no longer grant any incentive shares under the 2012 Plan. In addition, in January 2015, Momo Technology Overseas Holding Company Limited, or Momo BVI, our wholly-owned BVI subsidiary, adopted a share incentive plan, or the BVI Plan. As of March 31, 2018, options to purchase 28,776,804 Class A ordinary shares (excluding those that have been forfeited) had been granted under the 2012 Plan, 9,000,326 of which remained outstanding. In addition, as of March 31, 2018, options to purchase 18,552,529 Class A ordinary shares (excluding those that have been forfeited and cancelled) and 340,001 restricted share units had been granted under the 2014 Plan, of which 14,132,881 options remained outstanding and 162,500 restricted share units remained outstanding. Options to purchase an aggregate of 3,000,000 shares of Momo BVI under the BVI Plan remained outstanding as of March 31, 2018. See “Item 6. Directors, Senior Management and Employees—B. Compensation” for a detailed discussion. We expect to incur share-based compensation expenses of US$47.2 million, US$37.6 million and US$39.3 million in 2018, 2019, and after 2019, respectively, in connection with the currently outstanding share-based awards, and we may grant additional share-based awards under our share incentive plans, which will further increase our share-based compensation expenses. We believe the granting of share-based awards is of significant importance to our ability to attract and retain our employees, and we will continue to grant share-based awards to employees in the future. As a result, our expenses associated with share-based compensation may increase, which may have an adverse effect on our results of operations.

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If we fail to implement and maintain an effective system of internal controls, we may be unable to accurately report our results of operations or prevent fraud or fail to meet our reporting obligations, and investor confidence and the market price of our ADSs may be materially and adversely affected.

We are subject to reporting obligations under the U.S. securities laws. The Securities and Exchange Commission, or the SEC, as required by Section 404 of the Sarbanes-Oxley Act of 2002, has adopted rules requiring every public company to include a report of management in its annual report that contains management’s assessment of the effectiveness of such company’s internal controls over financial reporting. In addition, an independent registered public accounting firm must attest to and report on the effectiveness of the company’s internal control over financial reporting.

Our management has concluded that our internal controls over financial reporting were effective as of December 31, 2017. Our independent registered public accounting firm has issued an attestation report, which has concluded that our internal control over financial reporting was effective in all material aspects as of December 31, 2017. However, if we fail to maintain effective internal controls over financial reporting in the future, our management and our independent registered public accounting firm may not be able to conclude that we have effective internal controls over financial reporting at a reasonable assurance level. This could result in a loss of investor confidence in the reliability of our financial conditions which in turn could negatively impact the trading price of our ADSs and result in lawsuits being filed against us by our shareholders or otherwise harm our reputation. Furthermore, we have incurred and anticipate that we will continue to incur considerable costs and use significant management time and other resources in an effort to comply with Section 404 and other requirements of the Sarbanes-Oxley Act.

We have limited insurance coverage.

The insurance industry in China is still at an early stage of development and business and litigation insurance products offered in China are limited. Other than the directors and officers liability insurance, we do not maintain any third-party liability, property, business interruption or key-man life insurance. The costs of insuring for these risks and the difficulties associated with acquiring such insurance on commercially reasonable terms make it impractical for us to have such insurance. In addition, any insurance policies that we maintain may not adequately cover our actual loss and we may not be able to successfully claim our losses under the insurance policies at all or on a timely basis. Any business disruption, litigation or natural disaster may cause us to incur substantial costs and divert our resources.

We face risks related to health epidemics and natural disasters.

Our business could be adversely affected by the effects of epidemics. In recent years, there have been outbreaks of epidemics in China and globally. Our business operations could be disrupted if one of our employees is suspected of having H1N1 flu, avian flu or another epidemic, since it could require our employees to be quarantined and/or our offices to be disinfected. In addition, our results of operations could be adversely affected to the extent that the outbreak harms the Chinese economy in general and the mobile internet industry in particular.

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We are also vulnerable to natural disasters and other calamities. Although we have servers that are hosted in an offsite location, our backup system does not capture data on a real-time basis and we may be unable to recover certain data in the event of a server failure. We cannot assure you that any backup systems will be adequate to protect us from the effects of fire, floods, typhoons, earthquakes, power loss, telecommunications failures, break-ins, war, riots, terrorist attacks or similar events. Any of the foregoing events may give rise to server interruptions, breakdowns, system failures, technology platform failures or internet failures, which could cause the loss or corruption of data or malfunctions of software or hardware as well as adversely affect our ability to provide services on our platform.

Risks Related to Our Corporate Structure

If the PRC government finds that the agreements that establish the structure for operating our businesses in China do not comply with PRC regulations on foreign investment in internet and other related businesses, or if these regulations or their interpretation change in the future, we could be subject to severe penalties or be forced to relinquish our interests in those operations.

Current PRC laws and regulations impose certain restrictions or prohibitions on foreign ownership of companies that engage in internet and other related businesses, including the provision of internet content and online game operations. Specifically, foreign ownership of an internet content provider may not exceed 50%. We are a company registered in the Cayman Islands and Beijing Momo Information Technology Co., Ltd., or Beijing Momo IT, our wholly-owned PRC subsidiary, is considered as a foreign-invested enterprise. To comply with PRC laws and regulations, we conduct our business in China through Beijing Momo, our consolidated affiliated entity, and its subsidiaries, based on a series of contractual arrangements by and among Beijing Momo IT, Beijing Momo and its shareholders. As a result of these contractual arrangements, we exert control over Beijing Momo and its subsidiaries and consolidate or combine their operating results in our financial statements under U.S. GAAP. Beijing Momo and its subsidiaries hold the licenses, approvals and key assets that are essential for our business operations.

In the opinion of our PRC counsel, Han Kun Law Offices, the ownership structure of our PRC subsidiary and Beijing Momo, and the contractual arrangements among our PRC subsidiary, Beijing Momo and its shareholders are in compliance with existing PRC laws, rules and regulations. There are, however, substantial uncertainties regarding the interpretation and application of current or future PRC laws and regulations. Thus, we cannot assure you that the PRC government will not ultimately take a view contrary to the opinion of our PRC counsel. If we are found to be in violation of any PRC laws or regulations or if the contractual arrangements among Beijing Momo IT, Beijing Momo and its shareholders are determined to be illegal or invalid by the PRC court, arbitral tribunal or regulatory authorities, the relevant governmental authorities would have broad discretion in dealing with such violation, including, without limitation:

The imposition of any of these penalties may result in a material and adverse effect on our ability to conduct our business. In addition, if the imposition of any of these penalties causes us to lose the rights to direct the activities of our consolidated affiliated entity and its subsidiaries or the right to receive their economic benefits, we would no longer be able to consolidate our consolidated affiliated entity and its subsidiaries. We do not believe that any penalties imposed or actions taken by the PRC government would result in the liquidation of our company, Beijing Momo IT, or our consolidated affiliated entity and its subsidiaries.

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We rely on contractual arrangements with Beijing Momo and its shareholders for our operations in China, which may not be as effective in providing operational control as direct ownership.

Due to the PRC restrictions or prohibitions on foreign ownership of internet and other related businesses in China, we operate our business in China through our consolidated affiliated entity Beijing Momo and its subsidiaries, in which we have no ownership interest. We rely on a series of contractual arrangements with Beijing Momo and its shareholders, including the powers of attorney, to control and operate its business.

Our ability to control the consolidated affiliated entity and its subsidiaries depends on the powers of attorney, pursuant to which Beijing Momo IT can vote on all matters requiring shareholder approval in the Beijing Momo. We believe this power of attorney is legally enforceable but may not be as effective as direct equity ownership. These contractual arrangements are intended to provide us with effective control over Beijing Momo and its subsidiaries and allow us to obtain economic benefits from them. See “Item 4. Information on the Company—C. Organizational Structure—Contractual Arrangements with Beijing Momo” for more details about these contractual arrangements.

Although we have been advised by our PRC counsel, Han Kun Law Offices, that these contractual arrangements are valid, binding and enforceable under existing PRC laws and regulations, these contractual arrangements may not be as effective in providing control over Beijing Momo and its subsidiaries as direct ownership. If Beijing Momo or its shareholders fail to perform their respective obligations under the contractual arrangements, we may incur substantial costs and expend substantial resources to enforce our rights. All of these contractual arrangements are governed by and interpreted in accordance with PRC law, and disputes arising from these contractual arrangements will be resolved through arbitration in China. However, the legal system in China, particularly as it relates to arbitration proceedings, is not as developed as in other jurisdictions, such as the United States. See “—Risks Related to Doing Business in China—Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us.” There are very few precedents and little official guidance as to how contractual arrangements in the context of a variable interest entity, or a consolidated affiliated entity, should be interpreted or enforced under PRC law. There remain significant uncertainties regarding the ultimate outcome of arbitration should legal action become necessary. These uncertainties could limit our ability to enforce these contractual arrangements. In addition, arbitration awards are final and can only be enforced in PRC courts through arbitration award recognition proceedings, which could cause additional expenses and delays. In the event we are unable to enforce these contractual arrangements or we experience significant delays or other obstacles in the process of enforcing these contractual arrangements, we may not be able to exert effective control over our affiliated entities and may lose control over the assets owned by Beijing Momo and its subsidiaries. As a result, we may be unable to consolidate Beijing Momo and its subsidiaries in our consolidated financial statements, our ability to conduct our business may be negatively affected, and our business operations could be severely disrupted, which could materially and adversely affect our results of operations and financial condition.

We may lose the ability to use and enjoy assets held by Beijing Momo and its subsidiaries that are important to the operation of our business if Beijing Momo or its subsidiaries declares bankruptcy or becomes subject to a dissolution or liquidation proceeding.

Beijing Momo and its subsidiaries, including Chengdu Momo, Zhejiang Shengdian Digital Network Co., Ltd., or Zhejiang Shengdian, and Tianjin Heer Technology Co., Ltd., or Tianjin Heer, hold certain assets that are important to our business operations, including the value-added telecommunication service license concerning the internet information service, or the ICP license, the internet culture operation license and the internet audio/video program transmission license. Under our contractual arrangements, the shareholders of Beijing Momo may not voluntarily liquidate Beijing Momo or approve it to sell, transfer, mortgage or dispose of its assets or legal or beneficial interests exceeding certain threshold in the business in any manner without our prior consent. However, in the event that the shareholders breach this obligation and voluntarily liquidate Beijing Momo, or Beijing Momo declares bankruptcy, or all or part of its assets become subject to liens or rights of third-party creditors, we may be unable to continue some or all of our business operations, which could materially and adversely affect our business, financial condition and results of operations. Furthermore, if Beijing Momo or its subsidiary undergoes a voluntary or involuntary liquidation proceeding, its shareholders or unrelated third-party creditors may claim rights to some or all of its assets, thereby hindering our ability to operate our business, which could materially and adversely affect our business, financial condition and results of operations.

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Contractual arrangements we have entered into with Beijing Momo may be subject to scrutiny by the PRC tax authorities. A finding that we owe additional taxes could significantly reduce our consolidated net income and the value of your investment.

Pursuant to applicable PRC laws and regulations, arrangements and transactions among related parties may be subject to audit or challenge by the PRC tax authorities. We may be subject to adverse tax consequences if the PRC tax authorities determine that the contractual arrangements among our PRC subsidiary, Beijing Momo and its shareholders or its subsidiaries are not on an arm’s length basis and therefore constitute favorable transfer pricing. As a result, the PRC tax authorities could require that Beijing Momo adjust its taxable income upward for PRC tax purposes. Such an adjustment could adversely affect us by increasing Beijing Momo’s tax expenses without reducing the tax expenses of our PRC subsidiary, subjecting Beijing Momo to late payment fees and other penalties for under-payment of taxes, and resulting in our PRC subsidiary’s loss of its preferential tax treatment. Our consolidated results of operations may be adversely affected if Beijing Momo’s tax liabilities increase or if it is subject to late payment fees or other penalties.

If the chops of Beijing Momo IT, Beijing Momo and Beijing Momo’s subsidiaries are not kept safely, are stolen or are used by unauthorized persons or for unauthorized purposes, the corporate governance of these entities could be severely and adversely compromised.

In China, a company chop or seal serves as the legal representation of the company towards third parties even when unaccompanied by a signature. Each legally registered company in China is required to maintain a company chop, which must be registered with the local Public Security Bureau. In addition to this mandatory company chop, companies may have several other chops which can be used for specific purposes. The chops of Beijing Momo IT, our PRC subsidiary, Beijing Momo and Beijing Momo’s subsidiaries are generally held securely by personnel designated or approved by us in accordance with our internal control procedures. To the extent those chops are not kept safe, are stolen or are used by unauthorized persons or for unauthorized purposes, the corporate governance of these entities could be severely and adversely compromised and those corporate entities may be bound to abide by the terms of any documents so chopped, even if they were chopped by an individual who lacked the requisite power and authority to do so.

The shareholders of Beijing Momo may have potential conflicts of interest with us, which may materially and adversely affect our business.

The shareholders of Beijing Momo, our consolidated affiliated entity, include Messrs. Yan Tang, Yong Li, Xiaoliang Lei and Zhiwei Li, who, except for Zhiwei Li, are also our directors or officers. Conflicts of interest may arise between the roles of Messrs. Yan Tang, Yong Li and Xiaoliang Lei as directors or officers of our company and as shareholders of Beijing Momo. We rely on these individuals to abide by the laws of the Cayman Islands, which provide that directors and officers owe a fiduciary duty to our company to act in good faith and in the best interest of our company and not to use their positions for personal gain. The shareholders of Beijing Momo have executed powers of attorney to appoint Beijing Momo IT, our PRC subsidiary, or a person designated by Beijing Momo IT to vote on their behalf and exercise voting rights as shareholders of Beijing Momo. We cannot assure you that when conflicts arise, shareholders of Beijing Momo will act in the best interest of our company or that conflicts will be resolved in our favor. If we cannot resolve any conflicts of interest or disputes between us and these shareholders, we would have to rely on legal proceedings, which may be expensive, time-consuming and disruptive to our operations. There is also substantial uncertainty as to the outcome of any such legal proceedings.

We may rely on dividends paid by our PRC subsidiary to fund cash and financing requirements. Any limitation on the ability of our PRC subsidiary to pay dividends to us could have a material adverse effect on our ability to conduct our business and to pay dividends to holders of the ADSs and our ordinary shares.

We are a holding company, and we may rely on dividends to be paid by our PRC subsidiary for our cash and financing requirements, including the funds necessary to pay dividends and other cash distributions to the holders of the ADSs and our ordinary shares and service any debt we may incur. If our PRC subsidiary incur debt on their own behalf in the future, the instruments governing the debt may restrict their ability to pay dividends or make other distributions to us.

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Under PRC laws and regulations, a wholly foreign-owned enterprises in the PRC, such as Beijing Momo IT, may pay dividends only out of its accumulated profits as determined in accordance with PRC accounting standards and regulations. In addition, a wholly foreign-owned enterprise is required to set aside at least 10% of its after-tax profits each year, after making up previous years’ accumulated losses, if any, to fund certain statutory reserve funds, until the aggregate amount of such a fund reaches 50% of its registered capital. At the discretion of the board of director of the wholly foreign-owned enterprise, it may allocate a portion of its after-tax profits based on PRC accounting standards to staff welfare and bonus funds. These reserve funds and staff welfare and bonus funds are not distributable as cash dividends. Any limitation on the ability of our wholly-owned PRC subsidiary to pay dividends or make other distributions to us could materially and adversely limit our ability to grow, make investments or acquisitions that could be beneficial to our business, pay dividends, or otherwise fund and conduct our business.

Risks Related to Doing Business in China

Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us.

The PRC legal system is based on written statutes and court decisions have limited precedential value. The PRC legal system evolves rapidly, and the interpretations of many laws, regulations and rules may contain inconsistencies and enforcement of these laws, regulations and rules involves uncertainties.

From time to time, we may have to resort to administrative and court proceedings to enforce our legal rights. However, since PRC judicial and administrative authorities have significant discretion in interpreting and implementing statutory and contractual terms, it may be more difficult to predict the outcome of a judicial or administrative proceeding than in more developed legal systems. Furthermore, the PRC legal system is based, in part, on government policies and internal rules, some of which are not published in a timely manner, or at all, but which may have retroactive effect. As a result, we may not always be aware of any potential violation of these policies and rules. Such unpredictability towards our contractual, property (including intellectual property) and procedural rights could adversely affect our business and impede our ability to continue our operations.

Substantial uncertainties exist with respect to the enactment timetable, interpretation and implementation of draft PRC Foreign Investment Law and how it may impact the viability of our current corporate structure, corporate governance and business operations.

The Ministry of Commerce of the People’s Republic of China, or MOFCOM, published a discussion draft of the proposed Foreign Investment Law in January 2015 aiming to, upon its enactment, replace the trio of existing laws regulating foreign investment in China, namely, the Sino-foreign Equity Joint Venture Enterprise Law, the Sino-foreign Cooperative Joint Venture Enterprise Law and the Wholly Foreign-invested Enterprise Law, together with their implementation rules and ancillary regulations. The draft Foreign Investment Law embodies an expected PRC regulatory trend to rationalize its foreign investment regulatory regime in line with prevailing international practice and the legislative efforts to unify the corporate legal requirements for both foreign and domestic investments. While the Ministry of Commerce solicited comments on this draft earlier this year, substantial uncertainties exist with respect to its enactment timetable, interpretation and implementation. The draft Foreign Investment Law, if enacted as proposed, may materially impact the viability of our current corporate structure, corporate governance and business operations in many aspects.

Among other things, the draft Foreign Investment Law expands the definition of foreign investment and introduces the principle of “actual control” in determining whether a company is considered a foreign-invested enterprise, or an FIE. The draft Foreign Investment Law specifically provides that entities established in China but “controlled” by foreign investors will be treated as FIEs, whereas an entity set up in a foreign jurisdiction would nonetheless be, upon market entry clearance by the MOFCOM, treated as a PRC domestic investor provided that the entity is “controlled” by PRC entities and/or citizens. In this connection, “control” is broadly defined in the draft law to cover the following summarized categories: (i) holding 50% of more of the voting rights of the subject entity; (ii) holding less than 50% of the voting rights of the subject entity but having the power to secure at least 50% of the seats on the board or other equivalent decision making bodies, or having the voting power to exert material influence on the board, the shareholders’ meeting or other equivalent decision making bodies; or (iii) having the power to exert decisive influence, via contractual or trust arrangements, over the subject entity’s operations, financial matters or other key aspects of business operations. Once an entity is determined to be an FIE, it will be subject to the foreign investment restrictions or prohibitions set forth in a “negative list,” to be separately issued by the State Council later, if the FIE is engaged in the industry listed in the negative list. Unless the underlying business of the FIE falls within the negative list, which calls for market entry clearance by the MOFCOM, prior approval from the government authorities as mandated by the existing foreign investment legal regime would no longer be required for establishment of the FIE.

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The “variable interest entity” structure, or VIE structure, has been adopted by many PRC-based companies, including us, to obtain necessary licenses and permits in the industries that are currently subject to foreign investment restrictions in China. See “—If the PRC government finds that the agreements that establish the structure for operating our businesses in China do not comply with PRC regulations on foreign investment in internet and other related businesses, or if these regulations or their interpretation change in the future, we could be subject to severe penalties or be forced to relinquish our interests in those operations” and “Information on the Company—C. Organizational Structure—Contractual Arrangements with Beijing Momo.” Under the draft Foreign Investment Law, variable interest entities, or consolidated affiliated entities, that are controlled via contractual arrangement would also be deemed as FIEs, if they are ultimately “controlled” by foreign investors. Therefore, for any companies with a VIE structure in an industry category that is on the “negative list,” the VIE structure may be deemed legitimate only if the ultimate controlling person(s) is/are of PRC nationality (either PRC companies or PRC citizens). Conversely, if the actual controlling person(s) is/are of foreign nationalities, then the variable interest entities will be treated as FIEs and any operation in the industry category on the “negative list” without market entry clearance may be considered as illegal.

Through our dual-class share structure, our co-founder, chairman and chief executive officer, Mr. Yan Tang, a PRC citizen, possessed and controlled 71.9% of the voting power of our company as of March 31, 2018. However, the draft Foreign Investment Law has not taken a position on what actions should be taken with respect to the existing companies with a VIE structure, whether or not these companies are controlled by Chinese parties, although a few possible options were proposed at the comment solicitation stage. Moreover, it is uncertain whether the mobile internet industry, in which our variable interest entities operate, will be subject to the foreign investment restrictions or prohibitions set forth in the “negative list” to be issued. If the enacted version of the Foreign Investment Law and the final “negative list” mandate further actions, such as MOFCOM market entry clearance, to be completed by companies with existing VIE structure like us, we face uncertainties as to whether such clearance can be timely obtained, or at all.

If we fail to obtain and maintain the requisite licenses and approvals required under the complex regulatory environment applicable to our businesses in China, or if we are required to take compliance actions that are time-consuming or costly, our business, financial condition and results of operations may be materially and adversely affected.

The internet and mobile industries in China are highly regulated. Beijing Momo and its subsidiaries are required to obtain and maintain applicable licenses and approvals from different regulatory authorities in order to provide their current services. Under the current PRC regulatory scheme, a number of regulatory agencies, including but not limited to the State Administration of Press, Publication, Radio, Film and Television, or SARFT, the Ministry of Culture, or MOC, Ministry of Industry and Information Technology, or MIIT, and the State Council Information Office, or SCIO, jointly regulate all major aspects of the internet industry, including the mobile internet and mobile games businesses. Operators must obtain various government approvals and licenses for relevant mobile business.

We have obtained the ICP licenses for provision of internet information services, internet culture operation license for operation of online games, and internet audio/video program transmission license for our live video service. These licenses are essential to the operation of our business and are generally subject to regular government review or renewal. However, we cannot assure you that we can successfully renew these licenses in a timely manner or that these licenses are sufficient to conduct all of our present or future business.

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We are also required to obtain an internet publishing license from SARFT in order to publish online games through the mobile networks. As of the date of this annual report, we have yet to obtain an internet publishing license, and are in the process of preparing the application documents. Each mobile game is also required to be approved by SARFT prior to the commencement of its operations in China. As of the date of this annual report, we have obtained approvals from the SARFT for 23 games, and we are still in the process of applying with the SARFT for the approvals of the remaining games. In the event of any failure to meet the above-mentioned requirements, we may no longer be able to offer games on our platform, which would have an adverse effect on our business and results of operations. All domestic online games must be filed with the MOC within 30 days after operation, and all imported online games must be approved by the MOC. As of March 31, 2018, 22 of the 27 online games we offered had completed the filing with the MOC. If we fail to complete, obtain or maintain any of the required licenses or approvals or make the necessary filings, we may be subject to various penalties, such as confiscation of the net revenues that were generated through online games, the imposition of fines and the discontinuation or restriction of our operations of online games.

If we fail to complete, obtain or maintain any of the required licenses or approvals or make the necessary filings, we may be subject to various penalties, such as confiscation of the net revenues that were generated through the unlicensed internet or mobile activities, the imposition of fines and the discontinuation or restriction of our operations. Any such penalties may disrupt our business operations and materially and adversely affect our business, financial condition and results of operations.

Regulation and censorship of information disseminated over the mobile and internet in China may adversely affect our business and subject us to liability for content posted on our platform.

Internet companies in China are subject to a variety of existing and new rules, regulations, policies, and license and permit requirements. In connection with enforcing these rules, regulations, policies and requirements, relevant government authorities may suspend services by, or revoke licenses of, any internet or mobile content service provider that is deemed to provide illicit or pornographic information or content online or on mobile devices, and such activities may be intensified in connection with any ongoing government campaigns to eliminate prohibited content online. The competent government authorities, including the State Internet Information Office, the Ministry of Industry and Information Technology and the Ministry of Public Security, may crack down on illicit and pornographic information and content in the internet information services industry from time to time. Applicable sanctions, including fines, revocation of online publishing and online video licenses, and criminal prosecution, may be imposed on the provider of such information or content or its responsible officers.

We endeavor to eliminate illicit and pornographic information and content from our platform. We have made substantial investments in resources to monitor content that users post on our platform and the way in which our users engage with each other through our platform. Since our inception, we have terminated tens of million user accounts because we viewed content generated by those users to be indecent and we terminated a substantial percentage of new user accounts in order to eliminate spam, fictitious accounts and indecent content from our platform. We use a variety of methods to ensure our platform remains a healthy and positive experience for our users, including a designated content management team, licensed third-party software, and our own data analytics software. Although we employ these methods to filter our users and content posted by our users, we cannot be sure that our internal content control efforts will be sufficient to remove all content that may be viewed as indecent or otherwise non-compliant with PRC law and regulations. Government standards and interpretations as to what constitutes illicit and pornographic online information, content or behavior are subject to interpretation and may change. Government standards and interpretations may change in a manner that could render our current monitoring efforts insufficient. The Chinese government has wide discretion in regulating online activities and, irrespective of our efforts to control the content on our platform, government campaigns and other actions to reduce illicit and pornographic content and activities could subject us to negative press or regulatory challenges and sanctions, including fines, the suspension or revocation of our licenses to operate in China or a ban of our platform, including closure of one or more parts of or our entire business. Further, our senior management could be held criminally liable if we are deemed to be profiting from illicit and pornographic content on our platform. Although our business and operations have not been materially adversely affected by government campaigns or any other regulatory actions in the past, we cannot assure you that our business and operations will be immune from government actions or sanctions in the future. If government actions or sanctions are brought against us, or if there are widespread rumors that government actions or sanctions have been brought against us, our reputation could be harmed, we may lose users, customers or platform partners, our revenues and results of operation may be materially and adversely affected and the price of our ADSs could be dramatically reduced.

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Content posted or displayed on our social networking platform, including the live video shows hosted by us or our users, may be found objectionable by PRC regulatory authorities and may subject us to penalties and other severe consequences.

The PRC government has adopted regulations governing internet and wireless access and the distribution of information over the internet and wireless telecommunications networks. Under these regulations, internet content providers and internet publishers are prohibited from posting or displaying over the internet or wireless networks content that, among other things, violates PRC laws and regulations, impairs the national dignity of China or the public interest, or is obscene, superstitious, fraudulent or defamatory. Furthermore, internet content providers are also prohibited from displaying content that may be deemed by relevant government authorities as “socially destabilizing” or leaking “state secrets” of the PRC. Failure to comply with these requirements may result in the revocation of licenses to provide internet content or other licenses, the closure of the concerned platforms and reputational harm. The operator may also be held liable for any censored information displayed on or linked to their platform. For a detailed discussion, see “Item 4. Information on the Company—B. Business Overview—Regulation.”

We have designed and implemented procedures to monitor content on our social networking platform, including the live video shows hosted by us or our users, in order to comply with relevant laws and regulations. However, it may not be possible to determine in all cases the types of content that could result in our liability as a distributor of such content and, if any of the content posted or displayed on our social networking platform is deemed by the PRC government to violate any content restrictions, we would not be able to continue to display such content and could become subject to penalties, including confiscation of income, fines, suspension of business and revocation of required licenses, which could materially and adversely affect our business, financial condition and results of operations.

We may also be subject to potential liability for any unlawful actions by our users on our platform. It may be difficult to determine the type of content or actions that may result in liability to us and, if we are found to be liable, we may be prevented from operating our business in China. Moreover, the costs of compliance with these regulations may continue to increase as a result of more content being made available by an increasing number of users of our social networking platform, which may adversely affect our results of operations. Although we have adopted internal procedures to monitor content and to remove offending content once we become aware of any potential or alleged violation, we may not be able to identify all the content that may violate relevant laws and regulations or third-party intellectual property rights. Even if we manage to identify and remove offensive content, we may still be held liable.

Adverse changes in economic and political policies of the PRC government could have a material and adverse effect on overall economic growth in China, which could materially and adversely affect our business.

Our revenues are substantially generated in China. Accordingly, our results of operations, financial condition and prospects are influenced by economic, political and legal developments in China. Economic reforms begun in the late 1970s have resulted in significant economic growth. However, any economic reform policies or measures in China may from time to time be modified or revised. China’s economy differs from the economies of most developed countries in many respects, including with respect to the amount of government involvement, level of development, growth rate, control of foreign exchange and allocation of resources. While the PRC economy has experienced significant growth in the past 30 years, growth has been uneven across different regions and between economic sectors. The PRC government exercises significant control over China’s economic growth through strategically allocating resources, controlling the payment of foreign currency-denominated obligations, setting monetary policy and providing preferential treatment to particular industries or companies. Although the Chinese economy has grown significantly in the past decade, that growth may not continue, as evidenced by the slowing of the growth of the Chinese economy since 2012. Any adverse changes in economic conditions in China, in the policies of the Chinese government or in the laws and regulations in China could have a material adverse effect on the overall economic growth of China. Such developments could adversely affect our business and operating results, lead to reduction in demand for our services and adversely affect our competitive position.

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Under the PRC Enterprise Income Tax Law, we may be classified as a PRC “resident enterprise,” which could result in unfavorable tax consequences to us and our shareholders and have a material adverse effect on our results of operations and the value of your investment.

Under the PRC Enterprise Income Tax Law, or the EIT Law, which became effective on January 1, 2008, an enterprise established outside the PRC with “de facto management bodies” within the PRC is considered a “resident enterprise” for PRC enterprise income tax purposes and is generally subject to a uniform 25% enterprise income tax rate on its worldwide income. In 2009, the State Administration of Taxation, or the SAT, issued the Notice Regarding the Determination of Chinese-Controlled Overseas Incorporated Enterprises as PRC Tax Resident Enterprise on the Basis of De Facto Management Bodies, or SAT Circular 82, which provides certain specific criteria for determining whether the “de facto management body” of a PRC-controlled enterprise that is incorporated offshore is located in China. Further to SAT Circular 82, on July 27, 2011, the SAT issued the Administrative Measures for Enterprise Income Tax of Chinese-Controlled Offshore Incorporated Resident Enterprises (Trial), or SAT Bulletin 45, to provide more guidance on the implementation of SAT Circular 82; the bulletin became effective on September 1, 2011. SAT Bulletin 45 clarified certain issues in the areas of resident status determination, post-determination administration and competent tax authorities’ procedures.

According to SAT Circular 82, an offshore incorporated enterprise controlled by a PRC enterprise or a PRC enterprise group will be considered as a PRC tax resident enterprise by virtue of having its “de facto management body” in China and will be subject to PRC enterprise income tax on its worldwide income only if all of the following conditions are met: (a) the senior management and core management departments in charge of its daily operations function have their presence mainly in the PRC; (b) its financial and human resources decisions are subject to determination or approval by persons or bodies in the PRC; (c) its major assets, accounting books, company seals, and minutes and files of its board and shareholders’ meetings are located or kept in the PRC; and (d) more than half of the enterprise’s directors or senior management with voting rights habitually reside in the PRC. SAT Bulletin 45 specifies that when provided with a copy of Chinese tax resident determination certificate from a resident Chinese controlled offshore incorporated enterprise, the payer should not withhold 10% income tax when paying the Chinese-sourced dividends, interest, royalties, among others, to the Chinese controlled offshore incorporated enterprise.

Although SAT Circular 82 and SAT Bulletin 45 only apply to offshore incorporated enterprises controlled by PRC enterprises or PRC enterprise groups and not those controlled by PRC individuals or foreigners, the determination criteria set forth therein may reflect the SAT’s general position on how the term “de facto management body” could be applied in determining the tax resident status of offshore enterprises, regardless of whether they are controlled by PRC enterprises, individuals or foreigners.

If the PRC tax authorities determine that we or any of our non-PRC subsidiaries is a PRC resident enterprise for PRC enterprise income tax purposes, then we or any such non-PRC subsidiary could be subject to PRC tax at a rate of 25% on its world-wide income, which could materially reduce our net income. In addition, we will also be subject to PRC enterprise income tax reporting obligations.

If the PRC tax authorities determine that our company is a PRC resident enterprise for PRC enterprise income tax purposes, gains realized on the sale or other disposition of ADSs or ordinary shares may be subject to PRC tax, at a rate of 10% in the case of non-PRC enterprises or 20% in the case of non-PRC individuals (in each case, subject to the provisions of any applicable tax treaty), if such gains are deemed to be from PRC sources. Any such tax may reduce the returns on your investment in the ADSs.

We face uncertainty with respect to indirect transfer of equity interests in PRC resident enterprises by their non-PRC holding companies.

We face uncertainties regarding the reporting on and consequences of previous private equity financing transactions involving the transfer and exchange of shares in our company by non-resident investors. According to the Notice on Strengthening Administration of Enterprise Income Tax for Share Transfers by Non-PRC Resident Enterprises issued by the PRC State Administration of Taxation on December 10, 2009, with retroactive effect from January 1, 2008, or SAT Circular 698, where a non-resident enterprise transfers the equity interests in a PRC resident enterprise indirectly through a disposition of equity interests in an overseas holding company (other than a purchase and sale of shares issued by a PRC resident enterprise in public securities market), or an Indirect Transfer, and such overseas holding company is located in a tax jurisdiction that: (a) has an effective tax rate less than 12.5% or (b) does not tax foreign income of its residents, the non-resident enterprise, as the seller, shall report such Indirect Transfer to the competent tax authority of the PRC resident enterprise within 30 days of execution of the equity transfer agreement for such Indirect Transfer. The PRC tax authority will examine the true nature of the Indirect Transfer, and if the tax authority considers that the foreign investor has adopted an abusive arrangement without reasonable commercial purposes and for the purpose of avoiding or reducing PRC tax, they will disregard the existence of the overseas holding company that is used for tax planning purposes and re-characterize the Indirect Transfer. As a result, gains derived from such Indirect Transfer may be subject to PRC withholding tax at the rate of up to 10%. SAT Circular 698 also points out that when a non-resident enterprise transfers its equity interests in a PRC resident enterprise to its related parties at a price lower than the fair market value, the competent tax authorities have the power to make a reasonable adjustment on the taxable income of the transaction.

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On February 3, 2015, the SAT issued a Public Notice 2015 No. 7, or Public Notice 7, to supersede existing provisions in relation to the Indirect Transfer as set forth in Circular 698, while the other provisions of Circular 698 remain in force. Public Notice 7 introduces a new tax regime that is significantly different from that under Circular 698. Public Notice extends its tax jurisdiction to capture not only Indirect Transfer as set forth under Circular 698 but also transactions involving transfer of immovable property in China and assets held under the establishment and place in China of a foreign company through the offshore transfer of a foreign intermediate holding company. Public Notice 7 also addresses the transfer of the equity interest in a foreign intermediate holding company widely. In addition, Public Notice 7 provides clearer criteria than Circular 698 on how to assess reasonable commercial purposes and introduces safe harbor scenarios applicable to internal group restructurings. However, it also brings challenges to both the foreign transferor and transferee (or other person who is obligated to pay for the transfer) of the Indirect Transfer as they have to make self-assessment on whether the transaction should be subject to PRC tax and to file or withhold the PRC tax accordingly. In October 2017, the SAT issued the Announcement of the State Administration of Taxation on Issues Concerning the Withholding of Non-resident Enterprise Income Tax at Source, or Bulletin 37, which came into effect on December 1, 2017. The Bulletin 37 replaced and superseded, among other circulars, Circular 698, and further clarifies the practice and procedures of the withholding of non-resident enterprise income tax. Where a non-resident enterprise transfers taxable assets indirectly by disposing of the equity interests of an overseas holding company, which constitutes an Indirect Transfer, the non-resident enterprise as either the transferor or the transferee, or the PRC entity that directly owns the taxable assets, may report such Indirect Transfer to the relevant tax authority.

Where non-resident investors were involved in our private equity financing, if such transactions were determined by the tax authorities to lack reasonable commercial purpose, we and our non-resident investors may become at risk of being taxed under Bulletin 37 and Public Notice 7 and may be required to expend valuable resources to comply with Bulletin 37 and Public Notice 7 or to establish that we should not be taxed under Bulletin 37 and Public Notice 7, which may have a material adverse effect on our financial condition and results of operations or the non-resident investors’ investments in us.

The PRC tax authorities have the discretion under SAT Circular 59, Bulletin 37 and Public Notice 7 to make adjustments to the taxable capital gains based on the difference between the fair value of the equity interests transferred and the cost of investment. We may pursue acquisitions in the future that may involve complex corporate structures. If we are considered a non-resident enterprise under the PRC Enterprise Income Tax Law and if the PRC tax authorities make adjustments to the taxable income of the transactions under SAT Circular 59, Bulletin 37 and Public Notice 7, our income tax costs associated with such potential acquisitions will be increased, which may have an adverse effect on our financial condition and results of operations.

China’s M&A Rules and certain other PRC regulations establish complex procedures for some acquisitions of Chinese companies by foreign investors, which could make it more difficult for us to pursue growth through acquisitions in China.

The Regulations on Mergers and Acquisitions of Domestic Enterprises by Foreign Investors, or the M&A Rules, and other recently adopted regulations and rules concerning mergers and acquisitions established additional procedures and requirements that could make merger and acquisition activities by foreign investors more time consuming and complex. For example, the M&A Rules require that MOFCOM be notified in advance of any change-of-control transaction in which a foreign investor takes control of a PRC domestic enterprise, if (i) any important industry is concerned, (ii) such transaction involves factors that impact or may impact national economic security, or (iii) such transaction will lead to a change in control of a domestic enterprise which holds a famous trademark or PRC time-honored brand. Moreover, the Anti-Monopoly Law promulgated by the Standing Committee of the National People’s Congress on August 30, 2007 and effective as of August 1, 2008 requires that transactions which are deemed concentrations and involve parties with specified turnover thresholds (i.e., during the previous fiscal year, (i) the total global turnover of all operators participating in the transaction exceeds RMB10 billion and at least two of these operators each had a turnover of more than RMB400 million within China, or (ii) the total turnover within China of all the operators participating in the concentration exceeded RMB2 billion, and at least two of these operators each had a turnover of more than RMB400 million within China) must be cleared by MOFCOM before they can be completed. In addition, on February 3, 2011, the General Office of the State Council promulgated a Notice on Establishing the Security Review System for Mergers and Acquisitions of Domestic Enterprises by Foreign Investors, or the Circular 6, which officially established a security review system for mergers and acquisitions of domestic enterprises by foreign investors. Further, on August 25, 2011, MOFCOM promulgated the Regulations on Implementation of Security Review System for the Merger and Acquisition of Domestic Enterprises by Foreign Investors, or the MOFCOM Security Review Regulations, which became effective on September 1, 2011, to implement the Circular 6. Under Circular 6, a security review is required for mergers and acquisitions by foreign investors having “national defense and security” concerns and mergers and acquisitions by which foreign investors may acquire the “de facto control” of domestic enterprises with “national security” concerns. Under the MOFCOM Security Review Regulations, MOFCOM will focus on the substance and actual impact of the transaction when deciding whether a specific merger or acquisition is subject to security review. If MOFCOM decides that a specific merger or acquisition is subject to security review, it will submit it to the Inter-Ministerial Panel, an authority established under the Circular 6 led by the National Development and Reform Commission, or NDRC, and MOFCOM under the leadership of the State Council, to carry out security review. The regulations prohibit foreign investors from bypassing the security review by structuring transactions through trusts, indirect investments, leases, loans, control through contractual arrangements or offshore transactions. There is no explicit provision or official interpretation stating that the merging or acquisition of a company engaged in the mobile games business requires security review, and there is no requirement that acquisitions completed prior to the promulgation of the Security Review Circular are subject to MOFCOM review.

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In the future, we may grow our business by acquiring complementary businesses. Complying with the requirements of the above-mentioned regulations and other relevant rules to complete such transactions could be time consuming, and any required approval processes, including obtaining approval from the MOFCOM or its local counterparts may delay or inhibit our ability to complete such transactions. It is unclear whether our business would be deemed to fall into the industry that raises “national defense and security” or “national security” concerns. However, MOFCOM or other government agencies may publish explanations in the future determining that our business is in an industry subject to the security review, in which case our future acquisitions in the PRC, including those by way of entering into contractual control arrangements with target entities, may be closely scrutinized or prohibited.

PRC regulations relating to offshore investment activities by PRC residents may limit our PRC subsidiary’s ability to increase its registered capital or distribute profits to us or otherwise expose us to liability and penalties under PRC law.

The SAFE promulgated the Circular on Relevant Issues Relating to Domestic Resident’s Investment and Financing and Roundtrip Investment through Special Purpose Vehicles, or SAFE Circular 37, in July 2014 that requires PRC residents or entities to register with SAFE or its local branch in connection with their establishment or control of an offshore entity established for the purpose of overseas investment or financing. In addition, such PRC residents or entities must update their SAFE registrations when the offshore special purpose vehicle undergoes material events relating to any change of basic information (including change of such PRC citizens or residents, name and operation term), increases or decreases in investment amount, transfers or exchanges of shares, or mergers or divisions. SAFE Circular 37 is issued to replace the Notice on Relevant Issues Concerning Foreign Exchange Administration for PRC Residents Engaging in Financing and Roundtrip Investments via Overseas Special Purpose Vehicles, or SAFE Circular 75.

If our shareholders who are PRC residents or entities do not complete their registration with the local SAFE branches, our PRC subsidiary may be prohibited from distributing its profits and proceeds from any reduction in capital, share transfer or liquidation to us, and we may be restricted in our ability to contribute additional capital to our PRC subsidiary. Moreover, failure to comply with the SAFE registration described above could result in liability under PRC laws for evasion of applicable foreign exchange restrictions.

To our knowledge, Messrs. Yan Tang, Yong Li, Zhiwei Li and Xiaoliang Lei have completed SAFE registration in connection with our financings and share transfer. However, we cannot compel all of our beneficial owners to comply with SAFE registration requirements. As a result, we cannot assure you that all of our shareholders or beneficial owners who are PRC residents or entities have complied with, and will in the future make or obtain any applicable registrations or approvals required by, SAFE regulations. Failure by such shareholders or beneficial owners to comply with SAFE regulations, or failure by us to amend the foreign exchange registrations of our PRC subsidiary, could subject us to fines or legal sanctions, restrict our overseas or cross-border investment activities, limit our subsidiaries’ ability to make distributions or pay dividends or affect our ownership structure, which could adversely affect our business and prospects.

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Failure to comply with PRC regulations regarding the registration requirements for employee stock ownership plans or share option plans may subject the PRC plan participants or us to fines and other legal or administrative sanctions.

In February 2012, SAFE promulgated the Notices on Issues Concerning the Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive Plans of Overseas Publicly-Listed Companies, or Circular 7, which replaced the Application Procedures of Foreign Exchange Administration for Domestic Individuals Participating in Employee Stock Ownership Plans or Stock Option Plans of Overseas Publicly-Listed Companies issued by SAFE on March 28, 2007. Under the Circular 7 and other relevant rules and regulations, PRC residents who participate in stock incentive plan in an overseas publicly-listed company are required to register with SAFE or its local branches and complete certain other procedures. Participants of a stock incentive plan who are PRC residents must retain a qualified PRC agent, which could be a PRC subsidiary of such overseas publicly listed company or another qualified institution selected by such PRC subsidiary, to conduct the SAFE registration and other procedures with respect to the stock incentive plan on behalf of its participants. Such participants must also retain an overseas entrusted institution to handle matters in connection with their exercise of stock options, the purchase and sale of corresponding stocks or interests and fund transfers. In addition, the PRC agent is required to amend the SAFE registration with respect to the stock incentive plan if there is any material change to the stock incentive plan, the PRC agent or the overseas entrusted institution or other material changes. We and our PRC employees who have been granted stock options are subject to these regulations. Failure of our PRC stock option holders to complete their SAFE registrations may subject these PRC residents to fines and legal sanctions and may also limit our ability to contribute additional capital into our PRC subsidiary, limit our PRC subsidiary’s ability to distribute dividends to us, or otherwise materially adversely affect our business.

PRC regulation of loans to, and direct investment in, PRC entities by offshore holding companies and governmental control of currency conversion may restrict or prevent us from using offshore funds to make loans to our PRC subsidiary and consolidated affiliated entity and its subsidiaries, or to make additional capital contributions to our PRC subsidiary.

We are an offshore holding company conducting our operations in China through our PRC subsidiary and consolidated affiliated entity and its subsidiaries. We may make loans to our PRC subsidiary and consolidated affiliated entity and its subsidiaries, or we may make additional capital contributions to our PRC subsidiary, or we may establish new PRC subsidiaries and make capital contributions to these new PRC subsidiaries, or we may acquire offshore entities with business operations in China in an offshore transaction.

Most of these ways are subject to PRC regulations and approvals. For example, loans by us to our wholly-owned PRC subsidiary to finance their activities cannot exceed statutory limits and must be registered with the local counterpart of SAFE. If we decide to finance our wholly-owned PRC subsidiaries by means of capital contributions, these capital contributions must be approved by the MOFCOM or its local counterpart. Due to the restrictions imposed on loans in foreign currencies extended to any PRC domestic companies, we are not likely to make such loans to Beijing Momo, which is PRC domestic company. Further, we are not likely to finance the activities of Beijing Momo by means of capital contributions due to regulatory restrictions relating to foreign investment in PRC domestic enterprises engaged in mobile internet services, online games and related businesses.

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On August 29, 2008, SAFE promulgated the Circular on the Relevant Operating Issues Concerning the Improvement of the Administration of the Payment and Settlement of Foreign Currency Capital of Foreign-Invested Enterprises, or SAFE Circular 142, regulating the conversion by a foreign-invested enterprise of foreign currency registered capital into Renminbi by restricting how the converted Renminbi may be used. SAFE Circular 142 provides that Renminbi capital converted from foreign currency registered capital of a foreign-invested enterprise may only be used for purposes within the business scope approved by the applicable governmental authority and may not be used for equity investments within the PRC. In addition, SAFE strengthened its oversight of the flow and use of the Renminbi capital converted from the foreign currency registered capital of a foreign-invested company. The use of such Renminbi capital may not be altered without SAFE approval, and such Renminbi capital may not in any case be used to repay Renminbi loans if the proceeds of such loans have not been used. Violations of SAFE Circular 142 could result in severe monetary or other penalties. Furthermore, SAFE promulgated a circular on November 9, 2010, known as Circular 59, which tightens the examination of the authenticity of settlement of net proceeds from overseas offerings. SAFE further promulgated the Circular on Further Clarification and Regulation of the Issues Concerning the Administration of Certain Capital Account Foreign Exchange Businesses, or Circular 45, on November 9, 2011, which expressly prohibits foreign-invested enterprises from using registered capital settled in Renminbi converted from foreign currencies to grant loans through entrustment arrangements with a bank, repay inter-company loans or repay bank loans that have been transferred to a third party. Circular 142, Circular 59 and Circular 45 may significantly limit our ability to transfer the net proceeds from our overseas offerings, including our initial public offering consummated in December 2014, to our PRC subsidiary and to convert such proceeds into Renminbi, which may adversely affect our liquidity and our ability to fund and expand our business in the PRC.

On April 8, 2015, SAFE promulgated the Circular on Reforming the Management Approach Regarding the Foreign Exchange Capital Settlement of Foreign-invested Enterprises, or SAFE Circular 19, which will, upon its effective date as of June 1, 2015, supersedes the SAFE Circular 142. Circular 19 provides that, among other things, the foreign-invested company may convert the foreign currency in its capital account into RMB on a “at will” basis and the RMB funds so converted can be used for equity investments.

On June 9, 2016, SAFE promulgated the Circular on Reforming and Regulation of Administrative Policy on Settlement of Foreign Exchange of Capital Account, or SAFE Circular 16, which became effective on June 9, 2016. According to SAFE Circular 16, the foreign exchange capital of FIEs, foreign debt and funds raised through offshore listings may be settled on a discretionary basis, and can be settled at banks. The proportion of such discretionary settlement is temporarily determined as 100%. The RMB converted from relevant foreign exchange shall be kept in a designated account, and if a domestic enterprise needs to make further payment from such account, it still must provide supporting documents and go through the review process with the banks.

Fluctuation in the value of the RMB may have a material adverse effect on the value of your investment.

The value of the RMB against the U.S. dollar and other currencies is affected by changes in China’s political and economic conditions and China’s foreign exchange policies, among other things. In July 2005, the PRC government changed its decades-old policy of pegging the value of the RMB to the U.S. dollar, and the RMB appreciated more than 20% against the U.S. dollar over the following three years. Between July 2008 and June 2010, this appreciation halted and the exchange rate between the RMB and the U.S. dollar remained within a narrow band. Since June 2010, the RMB has fluctuated against the U.S. dollar, at times significantly and unpredictably, and in recent years the RMB has depreciated significantly against the U.S. dollar. Since October 1, 2016, the RMB has joined the International Monetary Fund (IMF)’s basket of currencies that make up the Special Drawing Right (SDR), along with the U.S. dollar, the Euro, the Japanese yen and the British pound. In the fourth quarter of 2016, the RMB has depreciated significantly in the backdrop of a surging U.S. dollar and persistent capital outflows of China. In 2017, the RMB has appreciated significantly in the backdrop of a firming economy and the “restrict capital outflows and promote capital inflows” policy in China. With the development of the foreign exchange market and progress towards interest rate liberalization and Renminbi internationalization, the PRC government may in the future announce further changes to the exchange rate system and there is no guarantee that the RMB will not appreciate or depreciate significantly in value against the U.S. dollar in the future. It is difficult to predict how market forces or PRC or U.S. government policy may impact the exchange rate between the RMB and the U.S. dollar in the future.

Our revenues and costs are mostly denominated in RMB, whereas our reporting currency is the U.S. dollar. Any significant depreciation of the RMB may materially and adversely affect our revenues, earnings and financial position as reported in U.S. dollars. To the extent that we need to convert U.S. dollars we received from our initial public offering into RMB for our operations, appreciation of the RMB against the U.S. dollar would have an adverse effect on the RMB amount we would receive from the conversion. An appreciation of RMB against the U.S. dollar would also make any new RMB denominated investments or expenditures more costly to us, to the extent that we need to convert U.S. dollars into RMB for such purposes. Conversely, if we decide to convert our RMB into U.S. dollars for the purpose of making payments for dividends on our ordinary shares or ADSs or for other business purposes, appreciation of the U.S. dollar against the RMB would have a negative effect on the U.S. dollar amount available to us.

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Our leased property interests may be defective and our right to lease the properties affected by such defects may be challenged, which could cause significant disruption to our business.

Under PRC laws, all lease agreements are required to be registered with the local housing authorities. We presently lease ten premises in China, and the landlords of six of these premises have completed the registration of their ownership rights and the landlords of two of these premises have completed the registration of our lease with the relevant authority. Failure to complete these required registrations may expose our landlords, lessors and us to potential monetary fines. If these registrations are not obtained in a timely manner or at all, we may be subject to monetary fines or may have to relocate our offices and incur the associated losses.

The audit report included in this annual report is prepared by an auditor who is not inspected by the Public Company Accounting Oversight Board and, as such, you are deprived of the benefits of such inspection.

Our independent registered public accounting firm that issues the audit reports included in this annual report filed with the US Securities and Exchange Commission, as auditors of companies that are traded publicly in the United States and a firm registered with the US Public Company Accounting Oversight Board (United States), or the PCAOB, is required by the laws of the United States to undergo regular inspections by the PCAOB to assess its compliance with the laws of the United States and professional standards. Because our auditors are located in the Peoples’ Republic of China, a jurisdiction where the PCAOB is currently unable to conduct inspections without the approval of the Chinese authorities, our auditors are not currently inspected by the PCAOB.

Inspections of other firms that the PCAOB has conducted outside China have identified deficiencies in those firms’ audit procedures and quality control procedures, which may be addressed as part of the inspection process to improve future audit quality. This lack of PCAOB inspections in China prevents the PCAOB from regularly evaluating our auditor’s audits and its quality control procedures. As a result, investors may be deprived of the benefits of PCAOB inspections.

The inability of the PCAOB to conduct inspections of auditors in China makes it more difficult to evaluate the effectiveness of our auditor’s audit procedures or quality control procedures as compared to auditors outside of China that are subject to PCAOB inspections. Investors may lose confidence in our reported financial information and procedures and the quality of our financial statements.

If additional remedial measures are imposed on the Big Four PRC-based accounting firms, including our independent registered public accounting firm, in administrative proceedings brought by the SEC alleging the firms’ failure to meet specific criteria set by the SEC, with respect to requests for the production of documents, we could be unable to timely file future financial statements in compliance with the requirements of the Exchange Act.

Starting in 2011, the Chinese affiliates of the “big four” accounting firms, including our independent registered public accounting firm, were affected by a conflict between US and Chinese law. Specifically, for certain U.S. listed companies operating and audited in mainland China, the SEC and the PCAOB sought to obtain from the Chinese firms access to their audit work papers and related documents. The firms were, however, advised and directed that under China law they could not respond directly to the US regulators on those requests, and that requests by foreign regulators for access to such papers in China had to be channeled through the China Securities Regulatory Commission, or CSRC.

In late 2012, this impasse led the SEC to commence administrative proceedings under Rule 102(e) of its Rules of Practice and also under the Sarbanes-Oxley Act of 2002 against the Chinese accounting firms, including our independent registered public accounting firm. A first instance trial of the proceedings in July 2013 in the SEC’s internal administrative court resulted in an adverse judgment against the firms. The administrative law judge proposed penalties on the firms including a temporary suspension of their right to practice before the SEC, although that proposed penalty did not take effect pending review by the Commissioners of the SEC. On February 6, 2015, before a review by the Commissioner had taken place, the firms reached a settlement with the SEC. Under the settlement, the SEC accepts that future requests by the SEC for the production of documents will normally be made to the CSRC. The firms will receive matching Section 106 requests, and are required to abide by a detailed set of procedures with respect to such requests, which in substance require them to facilitate production via the CSRC. If they fail to meet specified criteria, the SEC retains authority to impose a variety of additional remedial measures on the firms depending on the nature of the failure. Remedies for any future noncompliance could include, as appropriate, an automatic six-month bar on a single firm’s performance of certain audit work, commencement of a new proceeding against a firm, or in extreme cases the resumption of the current proceeding against all four firms.

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In the event that the SEC restarts the administrative proceedings, depending upon the final outcome, listed companies in the United States with major PRC operations may find it difficult or impossible to retain auditors in respect of their operations in the PRC, which could result in financial statements being determined to not be in compliance with the requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act, including possible delisting. Moreover, any negative news about any such future proceedings against these audit firms may cause investor uncertainty regarding China-based, United States-listed companies and the market price of our ADSs may be adversely affected.

If our independent registered public accounting firm were denied, even temporarily, the ability to practice before the SEC and we were unable to timely find another registered public accounting firm to audit and issue an opinion on our financial statements, our financial statements could be determined not to be in compliance with the requirements of the Exchange Act. Such a determination could ultimately lead to the delisting of our ADSs from the NASDAQ Global Select Market or deregistration from the SEC, or both, which would substantially reduce or effectively terminate the trading of our ADSs in the United States.

Risks Related to Our ADSs

The trading price of our ADSs is likely to be volatile, which could result in substantial losses to investors.

The price of our ADSs has been and is likely to continue to be volatile and could fluctuate widely due to factors beyond our control. This may happen because of broad market and industry factors, like the performance and fluctuation of the market prices of other companies with business operations located mainly in China that have listed their securities in the United States. A number of Chinese companies have listed their securities on U.S. stock markets. The securities of some of these companies have experienced significant volatility, including price declines in connection with their initial public offerings. The trading performances of these Chinese companies’ securities after their offerings may affect the attitudes of investors toward Chinese companies listed in the United States in general and consequently may impact the trading performance of our ADSs, regardless of our actual operating performance.

In addition to market and industry factors, the price and trading volume for our ADSs may be highly volatile for factors specific to our own operations, including the following:

Any of these factors may result in large and sudden changes in the volume and price at which our ADSs will trade.

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In the past, shareholders of public companies have often brought securities class action suits against those companies following periods of instability in the market price of their securities. If we were involved in a class action suit, it could divert a significant amount of our management’s attention and other resources from our business and operations and require us to incur significant expenses to defend the suit, which could harm our results of operations. Any such class action suit, whether or not successful, could harm our reputation and restrict our ability to raise capital in the future. In addition, if a claim is successfully made against us, we may be required to pay significant damages, which could have a material adverse effect on our financial condition and results of operations.

If securities or industry analysts do not publish research or reports about our business, or if they adversely change their recommendations regarding our ADSs, the market price for our ADSs and trading volume could decline.

The trading market for our ADSs will be influenced by research or reports that industry or securities analysts publish about our business. If one or more analysts who cover us downgrade our ADSs, the market price for our ADSs would likely decline. If one or more of these analysts cease to cover us or fail to regularly publish reports on us, we could lose visibility in the financial markets, which in turn could cause the market price or trading volume for our ADSs to decline.

We currently do not expect to pay dividends in the foreseeable future, and you must rely on price appreciation of our ADSs for return on your investment.

We currently intend to retain most, if not all, of our available funds and any future earnings to fund the development and growth of our business. As a result, we do not expect to pay any cash dividends in the foreseeable future. Therefore, you should not rely on an investment in our ADSs as a source for any future dividend income.

Our board of directors has complete discretion as to whether to distribute dividends subject to our memorandum and articles of association and certain restrictions under Cayman Islands law. In addition, our shareholders may by ordinary resolution declare a dividend, but no dividend may exceed the amount recommended by our directors. Even if our board of directors decides to declare and pay dividends, the timing, amount and form of future dividends, if any, will depend on, among other things, our future results of operations and cash flow, our capital requirements and surplus, the amount of distributions, if any, received by us from our subsidiary, our financial condition, contractual restrictions and other factors deemed relevant by our board of directors. Accordingly, the return on your investment in our ADSs will likely depend entirely upon any future price appreciation of our ADSs. There is no guarantee that our ADSs will appreciate in value or even maintain the price at which you purchased the ADSs. You may not realize a return on your investment in our ADSs and you may even lose your entire investment in our ADSs.

Substantial future sales or the expectation of substantial sales of our ADSs in the public market could cause the price of our ADSs to decline.

Sales of our ADSs in the public market, or the perception that these sales could occur, could cause the market price of our ADSs to decline. Such sales also might make it more difficult for us to sell equity or equity-related securities in the future at a time and price that we deem appropriate. If any existing shareholder or shareholders sell a substantial amount of ADSs, the prevailing market price for our ADSs could be adversely affected. In addition, if we pay for our future acquisitions in whole or in part with additionally issued ordinary shares, your ownership interests in our company would be diluted and this, in turn, could have a material and adverse effect on the price of our ADSs.

Mr. Yan Tang, our co-founder, chairman and chief executive officer, has considerable influence over important corporate matters. Our dual-class voting structure will limit your ability to influence corporate matters and could discourage others from pursuing any change of control transactions that holders of our Class A ordinary shares and ADSs may view as beneficial.

Mr. Yan Tang, our co-founder, chairman and chief executive officer, has considerable influence over important corporate matters. We have adopted a dual-class voting structure in which our ordinary shares consists of Class A ordinary shares and Class B ordinary shares. Holders of Class A ordinary shares are entitled to one vote per share in respect of matters requiring the votes of shareholders, while holders of Class B ordinary shares are entitled to ten votes per share. Each Class B ordinary share is convertible into one Class A ordinary share at any time by the holder thereof, while Class A ordinary shares are not convertible into Class B ordinary shares under any circumstances. Due to the disparate voting powers associated with our two classes of ordinary shares, Mr. Tang beneficially owned a total of 71.9% of the aggregate voting power of our company as of March 31, 2018. As a result of his majority voting power, Mr. Tang has considerable influence over matters such as electing directors and approving material mergers, acquisitions or other business combination transactions. This concentrated control will limit your ability to influence corporate matters and could also discourage others from pursuing any potential merger, takeover or other change of control transactions, which could have the effect of depriving the holders of our Class A ordinary shares and our ADSs of the opportunity to sell their shares at a premium over the prevailing market price.

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We may be classified as a passive foreign investment company under U.S. tax law, which could result in adverse U.S. federal income tax consequences to U.S. holders of our ADSs or ordinary shares.

Under United States federal income tax law, we will be classified as a PFIC for any taxable year if either (i) 75% or more of our gross income for the taxable year is passive income or (ii) 50% or more of the value of our assets (determined on the basis of a quarterly average) is attributable to assets that produce or are held for the production of passive income (the “asset test”). Although the law in this regard is unclear, we treat Beijing Momo as being owned by us for U.S. federal income tax purposes, not only because we exercise effective control over the operation of this entity but also because we are entitled to substantially all of its economic benefits, and, as a result, we consolidate its results of operations in our consolidated U.S. GAAP financial statements. If it were determined, however, that we are not the owner of Beijing Momo for U.S. federal income tax purposes, we would likely be treated as a PFIC for the taxable year ended December 31, 2017 and would anticipate being a PFIC for future taxable years. Assuming that we are the owner of Beijing Momo for United States federal income tax purposes and based upon our income and assets and the value of our ADSs, we do not believe that we were a PFIC for the taxable year ended December 31, 2017 and do not anticipate becoming a PFIC in the foreseeable future.

However, because PFIC status is a factual determination made annually after the close of each taxable year on the basis of the composition of our income and assets, there can be no assurance that we will not be a PFIC for the current taxable year or any future taxable year. Fluctuations in the market price of our ADSs may cause us to become a PFIC for the current or subsequent taxable years because the value of our assets for purposes of the asset test, including the value of our goodwill and unbooked intangibles, may be determined by reference to the market price of our ADSs from time to time (which may be volatile). In estimating the value of our goodwill and other unbooked intangibles, we have taken into account our current market capitalization. If our market capitalization subsequently declines, we may be or become classified as a PFIC for the current taxable year or future taxable years. In addition, the overall level of our passive assets will be affected by how, and how quickly, we spend our liquid assets. Under circumstances where our revenue from activities that produce passive income significantly increase relative to our revenue from activities that produce non-passive income, or where we determine not to deploy significant amounts of cash for active purposes, our risk of becoming classified as a PFIC may substantially increase. Furthermore, because there are uncertainties in the application of the relevant rules, it is possible that the IRS may challenge our classification of certain income or assets as non-passive, or our valuation of our goodwill and other unbooked intangibles, each of which may result in our company becoming classified as a PFIC for the current or subsequent taxable years.

If we were to be or become classified as a PFIC, a U.S. Holder (as defined in “Item 10. Additional Information—E. Taxation—United States Federal Income Tax Considerations”) will generally be subject to reporting requirements and may incur significantly increased U.S. federal income tax on gain recognized on the sale or other disposition of the ADSs or ordinary shares and on the receipt of distributions on the ADSs or ordinary shares to the extent such gain or distribution is treated as an “excess distribution” under the U.S. federal income tax rules. Further, if we were a PFIC for any year during which a U.S. Holder held our ADSs or ordinary shares, we generally would continue to be treated as a PFIC for all succeeding years during which such U.S. Holder held our ADSs or ordinary shares. You are urged to consult your tax advisor concerning the U.S. federal income tax consequences of holding and disposing of ADSs or ordinary shares if we are or become classified as a PFIC. For more information see “Item 10. Additional Information—E. Taxation—United States Federal Income Tax Considerations—Passive Foreign Investment Company Rules.”

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Our memorandum and articles of association contain anti-takeover provisions that could have a material adverse effect on the rights of holders of our Class A ordinary shares and ADSs.

Our currently effective second amended and restated memorandum and articles of association contain provisions to limit the ability of others to acquire control of our company or cause us to engage in change-of-control transactions. These provisions could have the effect of depriving our shareholders of an opportunity to sell their shares at a premium over prevailing market prices by discouraging third parties from seeking to obtain control of our company in a tender offer or similar transaction. Our dual-class voting structure gives disproportionate voting power to the Class B ordinary shares held by Gallant Future Holdings Limited and New Heritage Global Limited, both of which are wholly owned by a family trust controlled by Yan Tang, our co-founder, chairman and chief executive officer. In addition, our board of directors has the authority, without further action by our shareholders, to issue preferred shares in one or more series and to fix their designations, powers, preferences, privileges, and relative participating, optional or special rights and the qualifications, limitations or restrictions, including dividend rights, conversion rights, voting rights, terms of redemption and liquidation preferences, any or all of which may be greater than the rights associated with our Class A ordinary shares, in the form of ADS or otherwise. Preferred shares could be issued quickly with terms calculated to delay or prevent a change in control of our company or make removal of management more difficult. If our board of directors decides to issue preferred shares, the price of our ADSs may fall and the voting and other rights of the holders of our Class A ordinary shares and ADSs may be materially and adversely affected.

You may face difficulties in protecting your interests, and your ability to protect your rights through U.S. courts may be limited, because we are registered by way of continuation under Cayman Islands law.

We are an exempted company limited by shares registered under the laws of the Cayman Islands. Our corporate affairs are governed by our memorandum and articles of association, the Companies Law (2018 Revision) of the Cayman Islands and the common law of the Cayman Islands. The rights of shareholders to take action against the directors, actions by minority shareholders and the fiduciary responsibilities of our directors to us under Cayman Islands law are to a large extent governed by the common law of the Cayman Islands. The common law of the Cayman Islands is derived in part from comparatively limited judicial precedent in the Cayman Islands as well as from the common law of England, the decisions of whose courts are of persuasive authority, but are not binding, on a court in the Cayman Islands. The rights of our shareholders and the fiduciary responsibilities of our directors under Cayman Islands law are not as clearly established as they would be under statutes or judicial precedent in some jurisdictions in the United States. In particular, the Cayman Islands has a less developed body of securities laws than the United States. Some U.S. states, such as Delaware, have more fully developed and judicially interpreted bodies of corporate law than the Cayman Islands. In addition, Cayman Islands companies may not have standing to initiate a shareholder derivative action in a federal court of the United States.

Shareholders of Cayman Islands exempted companies like us have no general rights under Cayman Islands law to inspect corporate records or to obtain copies of lists of shareholders of these companies. Our directors have discretion under our articles of association to determine whether or not, and under what conditions, our corporate records may be inspected by our shareholders, but are not obliged to make them available to our shareholders. This may make it more difficult for you to obtain the information needed to establish any facts necessary for a shareholder motion or to solicit proxies from other shareholders in connection with a proxy contest.

As a result of all of the above, public shareholders may have more difficulty in protecting their interests in the face of actions taken by management, members of the board of directors or controlling shareholders than they would as public shareholders of a company incorporated in the United States.

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Certain judgments obtained against us by our shareholders may not be enforceable.

We are a Cayman Islands company and most of our assets are located outside of the United States. Substantially all of our current operations are conducted in China. In addition, a majority of our current directors and officers are nationals and residents of countries other than the United States. Most of the assets of these persons are located outside the United States. As a result, it may be difficult or impossible for you to effect service of process within the United States upon us or these persons or to bring an action against us or against these individuals in the United States in the event that you believe that your rights have been infringed under the U.S. federal securities laws or otherwise. Even if you are successful in bringing an action of this kind, the laws of the Cayman Islands and of China may render you unable to enforce a judgment against our assets or the assets of our directors and officers. There is no statutory enforcement in the Cayman Islands of judgments obtained in the federal or state courts of the United States (and the Cayman Islands are not a party to any treaties for the reciprocal enforcement or recognition of such judgments), a judgment obtained in such jurisdiction will be recognized and enforced in the courts of the Cayman Islands at common law, without any re-examination of the merits of the underlying dispute, by an action commenced on the foreign judgment debt in the Grand Court of the Cayman Islands, provided such judgment (a) is given by a foreign court of competent jurisdiction, (b) imposes on the judgment debtor a liability to pay a liquidated sum for which the judgment has been given, (c) is final, (d) is not in respect of taxes, a fine or a penalty, and (e) was not obtained in a manner and is not of a kind the enforcement of which is contrary to natural justice or the public policy of the Cayman Islands. However, the Cayman Islands courts are unlikely to enforce a judgment obtained from the U.S. courts under civil liability provisions of the U.S. federal securities law if such judgment is determined by the courts of the Cayman Islands to give rise to obligations to make payments that are penal or punitive in nature. Because such a determination has not yet been made by a court of the Cayman Islands, it is uncertain whether such civil liability judgments from U.S. courts would be enforceable in the Cayman Islands.

We are a foreign private issuer within the meaning of the rules under the Exchange Act, and as such we are exempt from certain provisions applicable to United States domestic public companies.

Because we are a foreign private issuer under the Exchange Act, we are exempt from certain provisions of the securities rules and regulations in the United States that are applicable to U.S. domestic issuers, including:

We are required to file an annual report on Form 20-F within four months of the end of each fiscal year. In addition, we intend to publish our results on a quarterly basis through press releases, distributed pursuant to the rules and regulations of the NASDAQ Global Select Market. Press releases relating to financial results and material events will also be furnished to the SEC on Form 6-K. However, the information we are required to file with or furnish to the SEC will be less extensive and less timely compared to that required to be filed with the SEC by U.S. domestic issuers. As a result, you may not be afforded the same protections or information, which would be made available to you, were you investing in a U.S. domestic issuer. As a Cayman Islands company listed on the NASDAQ Global Select Market, we are subject to the NASDAQ Global Select Market corporate governance listing standards. However, NASDAQ Global Select Market rules permit a foreign private issuer like us to follow the corporate governance practices of its home country. Certain corporate governance practices in the Cayman Islands, which is our home country, may differ significantly from the NASDAQ Global Select Market corporate governance listing standards. To the extent that we choose to utilize the home country exemption for corporate governance matters, our shareholders may be afforded less protection than they otherwise would under the NASDAQ Global Select Market corporate governance listing standards applicable to U.S. domestic issuers. We follow home country practice with respect to annual shareholders meetings and did not hold an annual meeting of shareholders in 2017. As a result, you may not be afforded the same protections or information, which would be made available to you, were you investing in a U.S. domestic issuer.

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The voting rights of holders of ADSs are limited by the terms of the deposit agreement, and you may not be able to exercise your right to vote your Class A ordinary shares.

As a holder of our ADSs, you will only be able to exercise the voting rights with respect to the underlying Class A ordinary shares in accordance with the provisions of the deposit agreement. Under the deposit agreement, you must vote by giving voting instructions to the depositary. Upon receipt of your voting instructions, the depositary will vote the underlying Class A ordinary shares in accordance with these instructions. You will not be able to directly exercise your right to vote with respect to the underlying shares unless you withdraw the shares. Under our currently effective second amended and restated memorandum and articles of association, the minimum notice period required for convening a general meeting is 14 days. When a general meeting is convened, you may not receive sufficient advance notice to withdraw the shares underlying your ADSs to allow you to vote with respect to any specific matter. If we ask for your instructions, the depositary will notify you of the upcoming vote and will arrange to deliver our voting materials to you. We cannot assure you that you will receive the voting materials in time to ensure that you can instruct the depositary to vote your shares. In addition, the depositary and its agents are not responsible for failing to carry out voting instructions or for their manner of carrying out your voting instructions. This means that you may not be able to exercise your right to vote and you may have no legal remedy if the shares underlying your ADSs are not voted as you requested.

The depositary for our ADSs will give us a discretionary proxy to vote our Class A ordinary shares underlying your ADSs if you do not vote at shareholders’ meetings, except in limited circumstances, which could adversely affect your interests.

Under the deposit agreement for the ADSs, if you do not vote, the depositary will give us a discretionary proxy to vote our Class A ordinary shares underlying your ADSs at shareholders’ meetings unless:

The effect of this discretionary proxy is that if you do not vote at shareholders’ meetings, you cannot prevent our Class A ordinary shares underlying your ADSs from being voted, except under the circumstances described above. This may make it more difficult for shareholders to influence the management of our company. Holders of our Class A ordinary shares are not subject to this discretionary proxy.

You may not receive dividends or other distributions on our Class A ordinary shares and you may not receive any value for them, if it is illegal or impractical to make them available to you.

The depositary of our ADSs has agreed to pay to you the cash dividends or other distributions it or the custodian receives on Class A ordinary shares or other deposited securities underlying our ADSs, after deducting its fees and expenses. You will receive these distributions in proportion to the number of Class A ordinary shares your ADSs represent. However, the depositary is not responsible if it decides that it is unlawful or impractical to make a distribution available to any holders of ADSs. For example, it would be unlawful to make a distribution to a holder of ADSs if it consists of securities that require registration under the Securities Act but that are not properly registered or distributed under an applicable exemption from registration. The depositary may also determine that it is not feasible to distribute certain property through the mail. Additionally, the value of certain distributions may be less than the cost of mailing them. In these cases, the depositary may determine not to distribute such property. We have no obligation to register under U.S. securities laws any ADSs, ordinary shares, rights or other securities received through such distributions. We also have no obligation to take any other action to permit the distribution of ADSs, ordinary shares, rights or anything else to holders of ADSs. This means that you may not receive distributions we make on our Class A ordinary shares or any value for them if it is illegal or impractical for us to make them available to you. These restrictions may cause a material decline in the value of our ADSs.

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You may experience dilution of your holdings due to inability to participate in rights offerings.

We may, from time to time, distribute rights to our shareholders, including rights to acquire securities. Under the deposit agreement, the depositary will not distribute rights to holders of ADSs unless the distribution and sale of rights and the securities to which these rights relate are either exempt from registration under the Securities Act with respect to all holders of ADSs, or are registered under the provisions of the Securities Act. The depositary may, but is not required to, attempt to sell these undistributed rights to third parties, and may allow the rights to lapse. We may be unable to establish an exemption from registration under the Securities Act, and we are under no obligation to file a registration statement with respect to these rights or underlying securities or to endeavor to have a registration statement declared effective. Accordingly, holders of ADSs may be unable to participate in our rights offerings and may experience dilution of their holdings as a result.

You may be subject to limitations on transfer of your ADSs.

Your ADSs are transferable on the books of the depositary. However, the depositary may close its books at any time or from time to time when it deems expedient in connection with the performance of its duties. The depositary may close its books from time to time for a number of reasons, including in connection with corporate events such as a rights offering, during which time the depositary needs to maintain an exact number of ADS holders on its books for a specified period. The depositary may also close its books in emergencies, and on weekends and public holidays. The depositary may refuse to deliver, transfer or register transfers of our ADSs generally when our share register or the books of the depositary are closed, or at any time if we or the depositary thinks it is advisable to do so because of any requirement of law or of any government or governmental body, or under any provision of the deposit agreement, or for any other reason.

We started our operations in July 2011 when our founders established Beijing Momo in China. In order to facilitate foreign investment in our company, we incorporated our holding company under the name of Momo Technology Company Limited in the British Virgin Islands in November 2011. In July 2014, Momo Technology Company Limited was redomiciled in the Cayman Islands as an exempted company registered under the laws of the Cayman Islands, and was renamed Momo Inc. The following outlines other major changes to our corporate structure in the past years.

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In December 2014, we completed our initial public offering and listed our ADSs on the NASDAQ Global Select Market under the symbol “MOMO.”

Our principal executive offices are located at 20th Floor, Block B, Tower 2, Wangjing SOHO, No.1 Futongdong Street, Chaoyang District, Beijing 100102, People’s Republic of China. Our telephone number at this address is +86-10-5731-0567. Our registered office in the Cayman Islands is located at P.O. Box 309, Ugland House, Grand Cayman KY1-1104, Cayman Islands. Our agent for service of process in the United States is Law Debenture Corporate Services Inc., 801 2^nd Avenue, Suite 403, New York, NY 10017.

We operate Momo, one of China’s leading mobile-based social and entertainment platforms. We enable users to establish and expand social relationships based on location, interests and a variety of recreational activities including live videos, short videos, social games as well as other video- and audio-based interactive experiences. Our platform includes our Momo mobile application and a variety of related features, functionalities, tools and services that we provide to users, customers and platform partners. We aim to offer our users an authentic social experience by encouraging them to provide detailed personal information on Momo. Leveraging our social interest graph engine and our analysis of user behavior data, we are able to provide users a customized experience based on their social preferences and needs. Momo users can maintain and strengthen their relationships through our private and group communication tools, content creation and sharing functions, recreational activities such as live shows and gaming, as well as the offline social activities promoted on our platform.

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We have built a large user base on Momo since its launch in 2011. Our MAUs increased 22.2% to 99.1 million in December 2017 from 81.1 million in December 2016. Our MAUs were 69.8 million in December 2015. The growth rate of our MAUs increased in 2017 primarily due to the enriched product and content offerings and our marketing activities.

Our Momo mobile application can be downloaded and used free of charge, and we generate our revenues from the various services we offer on our Momo platform. Our revenues increased significantly from US$134.0 million in 2015 to US$553.1 million in 2016 and further to US$1,318.3 million in 2017. We currently generate our revenues from live video service, value-added service, mobile marketing, mobile games and other services. Our live video service, which was launched in September 2015 and allows users to purchase and send in-show virtual gifts to other users hosting live shows, currently contributes to the largest share of our revenues, generating 83.6% of our net revenues in 2017. We generated 43.6%,12.2% and 7.8% of our net revenues from value-added services in 2015, 2016 and 2017, respectively, in relation to our membership subscription package that provides members with additional functions and privileges on our platform and, starting in the fourth quarter of 2016, virtual gift service, which allows our users to purchase and send virtual gifts to other users outside of the live video service. Mobile marketing services, mobile games and other services contributed 29.0%, 23.2% and 3.3%, respectively, of our revenues in 2015, 12.0%, 6.4% and 1.3%, respectively, of our revenues in 2016, and 5.8%, 2.7% and 0.1%, respectively, of our revenues in 2017. We had a net income of US$13.7 million, US$145.3 million and US$318.0 million in 2015, 2016 and 2017, respectively.

The Momo Platform

Our Momo platform includes our Momo mobile application and a variety of related features, functionalities, tools and services that we provide to users, customers and platform partners. The Momo mobile application, which is available on Android and iOS platforms, enables users to establish and expand their social relationships based on location, interests and a variety of recreational activities including live videos, short videos, social games as well as other video- and audio-based interactive experiences. Momo offers a personal and lively way for users to discover interesting people, and facilitates the connecting, communicating, interacting, and content sharing with others. Momo features various social and entertainment features, including Nearby functions, live video, short video service, and others. Communications within our platform are supported by multi-media instant messaging tools and other audio- and video-based communication tools and services. Momo’s social features are increasingly integrated with video functions to offer more fun and entertaining contents and to enhance and encourage social interactions between users.    

Key features and functionalities offered by the Momo platform include the following:

Nearby People

Nearby People allows users to find out their approximate distance from each other in real time and is one of the primary tools through which users can establish and expand their social relationships on our platform.

Nearby People presents a curated list of nearby users with their profile pictures, relative distances and the time they last checked-in on Momo. The list of nearby people is ordered by our algorithm, which considers both the physical proximity and the recency of check-in of the users. All users can customize the list by viewing nearby people by gender, age and some other attributes. Users can initiate contact with nearby users by sending greeting messages and selecting to follow their accounts in order to receive notifications on their status updates. A user who receives a greeting message may then reply and choose to become a Momo friend of the initiator by also following such user. Users can adjust their privacy settings to avoid being seen by strangers or to appear invisible. Our application also allows users to block other users and report inappropriate behaviors.

Nearby Posts

Nearby Posts is an important entry point for users to discover and interact with other users via content sharing and consumption. It contains a stream of feeds, including photos, videos, music, books and other status updates posted by the users. The order of the feeds is defined by our algorithm which computes a number of different factors including physical proximity of the content creator, how recent that post is shared as well as how likely it is for a specific user to interact with such post based on our big data and machine learning technologies. Users can interact with such feeds in a number of different ways such as liking and commenting on the content, as well as checking out the profile pages of the content creators, sending private message and following the creator.

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Live Video

The Live Video function allows users to live stream a variety of content and activities including talent shows such as singing, dancing and talk shows, as well as casual chatting between broadcasters and viewers. Unlike traditional on-demand video experiences, live video allows the viewers to interact with the broadcasters on a real-time basis and thus facilitates a much more dynamic social experience. For example, a user can request a song from the live broadcaster and a broadcaster can connect a viewer to his or her live video channel through video calls. To provide fun and interactive experience between live broadcasters and viewers, the Live Video function offers interesting features such as customized filters and lenses as well as virtual gifts and associated special effects, some of which are enabled by facial recognition and augmented reality technology. For example, a user can pay to put virtual animated images over a broadcaster’s head or face to create an interesting visual effect. Viewers of live video shows may interact with broadcasters using text messages or by sending virtual gifts purchased with virtual currency. In August 2017, we launched Momo Radio, an audio extension of our live video service. This new service lowered the barriers for broadcasters and users to participate in real-time interactive experience through our live channels.

“Follow” Functions

The Follow tab was introduced in March 2017 to aggregate content that a user chooses to follow and video content our algorithm “thinks” the user might want to follow based on our big data analytics. There are two subsections within the tab. The “Follow” section under the Follow tab contains a stream of feeds created by people followed by the user while the “Recommended” section features popular video content that our recommendation engine, based on our big data analytics, believes the user might like or suggests the user to follow. The algorithm of the recommendation engine computes and makes recommendations based on a variety of factors including users’ personal preferences as well as the overall popularity of a specific video.

Other Functions

Other key features and functionalities include the following:

Diandian. Diandian is a swipe-based one-to-one matching function that helps our users discover people that they might be interested in. When activated, our recommendation engine will push potential matches to a user based on his or her profile and behavioral data such as interesting places the recommended user has traveled to, favorite books and movies and what interest groups he or she has participated in. The user may then swipe left or right to show if he or she is interested in the recommendation. Only users who have mutually shown interests to each other may become Momo friends and message each other.

Groups. Our application allows users to create and/or participate in groups created across points of interest and based on locations. Each group is given a shared Momo discussion page on which group members can discuss their common interests, post their photos, exchange messages and organize other online and offline events.

User Profile Page

If a user is interested in finding out more about another user on our platform, he or she can review the User Profile page, which is a function that we offer to provide a quick snapshot of a user. Information featured on this page includes profile pictures, detailed personal information such as name, age, hometown, horoscope, occupation, relationship status, groups joined, interests and favorite books and movies, the user’s historical posts and videos shared, the broadcasters that the user follows, as well as the user’s travel footprints. The profile page also contains a summary providing insights to a user’s behavioral characteristics. The User Profile Page is integrated with nearly all the other product modules such as the Nearby People, Nearby Posts, Diandian, Live Video and others.

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Instant Messaging

Our application is supported by instant messaging function, which allows users to communicate with each other using various forms of messages and expressions including text, emoticons, voice recordings, pictures and video messages, or to engage in real-time communication through audio and video chat function. One of the key features of our instant messaging function is that the dialog window presents the distance between the two parties in real time. Senders can see whether their messages have been delivered to or read by the recipient, and can choose to have their messages removed immediately after being read. Our instant messaging feature also allows users to turn voice messages into text, share their location information, invite other users to games, and send virtual gifts and red envelopes to each other.

Mobile Games

Our application offers games developed both internally and by third-party developers, some of which are customized for our platform and user profile. Our self-developed games are designed with themes and features to facilitate social activities among our users. For example, we launched Were Wolf in 2017. Inspired by the popular offline dinner party game “Mafia,” the game allows the users to engage in group live chat and play different roles according to the story line of the game. While playing the game, users can send each other virtual gifts to enhance the interactive experience. Other than internally developed games, we also offer third party developed games to the users to enrich their social and entertainment experience.

Monetization Opportunities

We started monetization in July 2013. We currently generate revenues primarily from live video service, value-added service, mobile marketing services, mobile games, and other services.

Live Video Service

We launched our live video service in September 2015. Initially, the service adopted an online live concert format whereby certain talented performers were invited to put on live music shows in a professional studio environment. Such shows were broadcasted live in one to four sessions on a daily basis and at pre-announced times. In the fourth quarter of 2015, we opened more live channels in order to enable more performers to put on talent shows to entertain and interact with their audience. The broadcasters can “go live” and connect with their audience via their mobile phones instead of through professional devices. Their audience will be able to interact on a real time basis with the broadcasters and other fellow viewers by texting for free or purchasing and sending virtual gifts, for which we shared a portion of the revenues generated with the broadcasters. Until April 2016, we only offered the service to a limited number of talented performers pre-selected carefully by us. In April 2016, we opened up the service to all the users of our platform so that each one of them can become a broadcaster if they wish.

Value-added Service

Membership Subscription

We provide enhanced membership privileges to users who subscribe to our membership package by paying membership fees. Our memberships are currently divided into two tiers, basic and premium. Enhanced privileges for all members include VIP logos, higher limits on the maximum number of users group and the number of users that the member can follow, access to certain special emoticons, the ability to add a short video and a voice recording to the profile page and to see a list of recent visitors to their profile page, and certain other special features unavailable to the non-members. Additional privileges for our premium members include the abilities to check out visitors to their message boards and to remove advertisements from their feeds.

Virtual Gift Service

We launched our virtual gift service on the Momo platform in the fourth quarter of 2016 to enhance users’ interaction and social networking with each other. Users simultaneously purchase and send the virtual gifts to other users, and we generate revenue from the sales of the virtual gifts.

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Mobile Marketing Services

We seek to provide advertising and marketing solutions to enable our customers to promote their brands and conduct effective marketing activities. We provide our customers with analytical tools to enable them to track and improve the effectiveness of their marketing campaigns on our platform. Our advertising and marketing customers include brand marketers, local merchants, application developers and publishers as well as other small and medium-sized businesses and individuals. Our mobile marketing services currently include the following:

In-feed marketing solutions. We offer advertising units that appear as feeds on Nearby People, Nearby Posts and Follow. Powered by a self-serve advertising system with a real-time bidding mechanism, our in-feed marketing solutions are performance-based and serve a wide range of marketers including application developers, local businesses, brand owners, as well as other small and medium-sized businesses and individuals. We offer advertising units in various formats, including text-based content, pictures, video clips and function that enables direct application downloads. In addition, our advertising system also allows customers to target certain cohorts of users based on their geographic locations, gender, age, type of mobile operating systems and some other parameters. Our customers can use a combination of the various formats and targeting capabilities to create their marketing campaigns more effectively.

Display ads. We offer a variety of marketing products in display format, including full screen banner ads that appear before the application is loaded, banners on frequently visited pages and other sponsored images displayed elsewhere within our application. Unlike the in-feed ad units, the display ad units are not sold through the bidding system.

We also offer integrated marketing packages that include multiple advertising units such as feeds, banners, video ads and sponsorships in order to serve a broader sets of marketing objectives of our marketing customers. As the features and functionalities of our platform continue to evolve, we may continue to add new ad format and marketing solutions to our mobile marketing product portfolios.

Mobile Games

As a social networking platform, we intend to offer games that have strong features which we believe will not only increase the interactions between users, but also broaden our revenue sources. Such games may be developed by third parties, where we share revenues generated by in-game purchases of virtual items with such developers, or developed in-house. We have recently been scaling back from licensed mobile game services and instead focus on self-developed games in order to better align the games offered on our platform with the positioning and strength of Momo as a location-based social platform.

Other Services

Our other services primarily include paid emoticons, gift mall sales and Duobao service, which allows the users to purchase a right to participate in quasi-lucky draw games, in which they have the opportunity of winning physical goods. We generate revenues from Duobao service both through sales of our own inventory and sales of third-party products. We ceased to provide gift mall services and paid emoticons in November 2016 and Duobao service in January 2017, due to the adjustment of our strategic priorities. Our users can still use our emoticons for free, except for certain special emoticons, which only our members can use.

Technology

Our research and development efforts focus on product development, architecture and technological infrastructures, as well as the security and integrity of our platform to protect our user data.

Our product development endeavors revolve around continuous innovations to help users discover and make new connections as well as building effective interactions. As our user base continues to expand and consumer behaviors constantly evolve, the social demands from the users become increasingly diversified. We make significant investments in technology to optimize our existing products and services and to develop new ones so that we can expand the social use offerings to satisfy the diversifying user demands.

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In addition, we are also investing in building and maintaining the technological infrastructures to support the delivery and usage of our products and services in a fast and efficient manner within a safe and secured environment.

Content Management and Monitoring

As of the date of this annual report, we have a dedicated team of over 550 personnel reviewing and handling content on our mobile platform for compliance with applicable laws and regulations. They are aided by both proprietary and third-party software and technologies to sweep our platform and the data being transmitted on a real-time basis around-the-clock. We monitor and screen user information and user generated content against a spam list, which is a list of content and behaviors that we have determined are likely to be indicative of inappropriate or illegal content or illegal activities. Additionally, Momo users can also easily report fraud if they come across suspicious content, and each user complaint is processed by our content management and monitoring system.

Our corporate policy requires a user to accept our terms of use during the registration process before becoming a Momo user. In the user agreement, the user makes certain acknowledgments and covenants, including, among others, (i) the user is solely responsible for the authenticity, legality, harmlessness and relevancy of all information submitted for registration purpose or delivered to other users, (ii) the user is not impersonating other people or spreading information in the name of others, (iii) the user alone is responsible for any losses or injuries arising from or caused by the information provided by other users and/or advertisements published for any third-party suppliers and partners on our platform, unless applicable laws and regulations provide otherwise and (iv) the user agrees to indemnify us for our losses or injuries arising from or caused by the activities of or content generated by the user.

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Branding and Marketing

Our brand building activities generally comprise purchasing online advertising in the form of texts, banners and videos, placing TV commercials and public relations efforts. We also conduct branding and promotional activities through offline events. For example, in January 2018, we hosted our Momo Live Broadcasting 2018 Evening of Surprise, featuring A-list celebrities and popular hosts, in Shanghai in order to further promote our brand and live video service. We also acquire users directly through online marketing channels such as application stores, search engines and other online advertising networks.

Intellectual Property

We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. As of December 31, 2017, we had seven pending patent applications filed with the State Intellectual Property Office of the PRC. We had registered 232 trademarks and had applied for 259 trademarks with the Trademark Office of the State Administration for Industry & Commerce of the PRC. We had registered 82 software copyrights and 66 copyrights with the PRC National Copyright Administration. We had also registered 58 domain names, including immomo.com, wemomo.com, immomogame.com and momocdn.com.

Seasonality

Overall, the historical seasonality of our business has been relatively mild due to our rapid growth, but seasonality may increase in the future. Historically, there is noticeable downward trends in user activities as well as revenue growth in the weeks prior to and after the Chinese Lunar New Year. However, seasonal fluctuations have not historically posed significant operational or financial challenges to us, as such periods tend to be brief and predictable. Due to our limited operating history, the seasonal trends that we have experienced in the past may not apply to, or be indicative of, our future operating results.

Competition

As a mobile social networking platform that also provides live video service, we are subject to intense competition from providers of similar services, as well as potential new types of online services.

Our competitors may have substantially more cash, traffic, technical, performer and other resources, as well as broader product or service offerings and can leverage their relationships based on other products or services to gain a larger share of marketing budgets from customers. We believe that our ability to compete effectively depends upon many factors, including the size, composition and engagement of our user base, our ad targeting capabilities, our pool of popular live broadcasters, market acceptance of our mobile marketing services and online entertainment services, our marketing and selling efforts, and the strength and reputation of our brand. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—The market in which we operate is fragmented and highly competitive. If we are unable to compete effectively for users or user engagement, our business and operating results may be materially and adversely affected.” We also experience significant competition for highly skilled personnel, including management, engineers, designers and product managers. Our growth strategy depends in part on our ability to retain our existing personnel and add additional highly skilled employees. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—The continuing and collaborative efforts of our senior management and key employees are crucial to our success, and our business may be harmed if we were to lose their services.”

Insurance

We do not maintain property insurance, business interruption insurance or general third-party liability insurance, nor do we maintain key-man life insurance.

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Regulations

This section sets forth a summary of the most significant rules and regulations that affect our business activities in China or our shareholders’ rights to receive dividends and other distributions from us.

Corporate Laws and Industry Catalog Relating to Foreign Investment

The establishment, operation and management of corporate entities in China are governed by the Company Law of the PRC, or the Company Law, effective in 1994, as amended in 1999, 2004, 2005 and 2013, respectively. The Company Law is applicable to our PRC subsidiary and consolidated affiliated entity and its subsidiaries unless the PRC laws on foreign investment have stipulated otherwise.

The establishment, approval, registered capital requirement and day-to-day operational matters of wholly foreign-owned enterprises, such as our PRC subsidiary, are regulated by the Wholly Foreign-owned Enterprise Law of the PRC effective in 1986, as amended in 2000 and 2016, and the Implementation Rules of the Wholly Foreign-owned Enterprise Law of the PRC effective in 1990, as amended in 2001 and 2014, and the Interim Administrative Measures for the Record-filing of the Incorporation and Change of Foreign-invested Enterprises effective in 2016, as amended in 2017.

Investment activities in the PRC by foreign investors are principally governed by the Guidance Catalog of Industries for Foreign Investment, or the Catalog, which was promulgated and is amended from time to time by the Ministry of Commerce and the National Development and Reform Commission. The latest version of the Catalog went effective on July 28, 2017. The Catalog divides industries into two categories: encouraged industries and industries subject to the Special Administrative Measures for Admission of Foreign Investments, also known as the Negative List for Admission of Foreign Investments, including restricted and prohibited industries. Industries not listed in the Catalog are generally open to foreign investment.

Establishment of wholly foreign-owned enterprises is generally permitted in encouraged industries. Some restricted industries are limited to equity or contractual joint ventures, while in some cases Chinese partners are required to hold the majority interests in such joint ventures. In addition, restricted category projects are subject to higher level government approvals. Foreign investors are not allowed to invest in industries in the prohibited category. For example, pursuant to the latest Catalog amended in 2017, the provision of value-added telecommunications services except for e-commerce falls in the restricted category and the percentage of foreign ownership cannot exceed 50%.

To comply with such foreign ownership restrictions, we operate our businesses in China through Beijing Momo, which is owned by PRC citizens. Beijing Momo is controlled by Beijing Momo IT through a series of contractual arrangements. Beijing Momo holds an internet content provider, or ICP, license to provide value-added telecommunication services, which is an industry in which foreign investment is “restricted” under the currently effective Catalog.

Beijing Momo IT is currently engaged in the business of software development, which is an industry in which foreign investment is “encouraged” under the currently effective Catalog.

Regulations Relating to Telecommunications Services

In September 2000, the State Council issued the Regulations on Telecommunications of China, or the Telecommunications Regulations, to regulate telecommunication activities in China. The telecommunications industry in China is governed by a licensing system based on the classifications of the telecommunications services set forth under the Telecommunications Regulations.

The Ministry of Industry and Information Technology, together with the provincial-level communications administrative bureaus, supervises and regulates the telecommunications industry in China. The Telecommunications Regulations divide the telecommunications services into two categories: infrastructure telecommunications services and value-added telecommunications services. The operation of value-added telecommunications services is subject to the examination, approval and licenses granted by the Ministry of Industry and Information Technology or its provincial-level communications administrative bureaus. According to the Catalog of Classification of Telecommunications Businesses effective in March 2016, provision of information services through the internet, such as the operation of our immomo.com website, is classified as value-added telecommunications services.

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Regulations Relating to Foreign Investment in Value-Added Telecommunications Industry

According to the Administrative Rules for Foreign Investment in Telecommunications Enterprises issued by the State Council effective in January 2002, as amended in September 2008 and February 2016, a foreign investor may hold no more than a 50% equity interest in a value-added telecommunications services provider in China and such foreign investor must have experience in providing value-added telecommunications services overseas and maintain a good track record. Due to these regulations, we operate our website through Beijing Momo and its subsidiaries. The most updated version of Guiding Catalog for Foreign Investment Industries, which was promulgated by the MOFCOM and the National Development and Reform Commission and became effective from July 28, 2017, or the Guiding Catalog, imposes the 50% restrictions on foreign ownership in value-added telecommunications business except for e-commerce business as well.

The Circular on Strengthening the Administration of Foreign Investment in and Operation of Value-added Telecommunications Business, or the Circular, issued by the former Ministry of Information Industry in July 2006, reiterated the regulations on foreign investment in telecommunications businesses, which require foreign investors to set up foreign-invested enterprises and obtain an internet content provider, or ICP, license to conduct any value-added telecommunications business in China. Under the Circular, a domestic company that holds an ICP license is prohibited from leasing, transferring or selling the license to foreign investors in any form, and from providing any assistance, including providing resources, sites or facilities, to foreign investors that conduct value-added telecommunications business illegally in China. Furthermore, certain relevant assets, such as the relevant trademarks and domain names that are used in the value-added telecommunications business must be owned by the local ICP license holder or its shareholders. The Circular further requires each ICP license holder to have the necessary facilities for its approved business operations and to maintain such facilities in the regions covered by its license. In addition, all value-added telecommunications service providers are required to maintain network and information security in accordance with the standards set forth under the relevant PRC regulations. If an ICP license holder fails to comply with the requirements in the Circular and also fails to remedy such non-compliance within a specified period of time, the Ministry of Industry and Information Technology or its local counterparts have the discretion to take administrative measures against such license holder, including revoking its ICP license. Beijing Momo, the operator of our website, owns the relevant domain names and registered trademarks and has the necessary personnel to operate the website.

Regulations on Broadcasting Audio/Video Programs through the Internet

On April 13, 2005, the State Council announced Several Decisions on Investment by Non-state-owned Companies in Culture-related Business in China. These decisions encourage and support non-state-owned companies to enter certain culture-related business in China, subject to restrictions and prohibitions for investment in audio/video broadcasting, website news and certain other businesses by non-state-owned companies. These decisions authorize the SARFT and the Ministry of Culture to adopt detailed implementing rules according to these decisions.

On December 20, 2007, the SARFT and the MIIT jointly issued the Rules for the Administration of Internet Audio and Video Program Services, commonly known as Circular 56, which came into effect as of January 31, 2008 and was amended on August 28, 2015. Circular 56 reiterates the requirement set forth in the Audio/Video Broadcasting Rules that online audio/video service providers must obtain a license from the SARFT. Furthermore, Circular 56 requires all online audio/video service providers to be either wholly state-owned or state-controlled. According to relevant official answers to press questions published on the SARFT’s website dated February 3, 2008, officials from the SARFT and the MIIT clarified that online audio/video service providers that already had been operating lawfully prior to the issuance of Circular 56 may re-register and continue to operate without becoming state-owned or controlled, provided that such providers have not engaged in any unlawful activities. This exemption will not be granted to online audio/video service providers established after Circular 56 was issued. Such policies have been reflected in the Application Procedure for Audio/Video Program Transmission License.

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On April 1, 2010, the SARFT issued the Internet Audio/Video Program Services Categories (Provisional), or the Provisional Categories, as further amended on March 10, 2017, which classified internet audio/video programs into four categories.

In 2009, the SARFT released a Notice on Strengthening the Administration of Online Audio/Video Content. This notice reiterated, among other things, that all movies and television shows released or published online must comply with relevant regulations on the administration of radio, film and television. In other words, these movies and television shows, whether produced in the PRC or overseas, must be pre-approved by SARFT, and the distributors of these movies and television shows must obtain an applicable permit before releasing any such movie or television show. In 2012, the SARFT and the State Internet Information Office of the PRC issued a Notice on Improving the Administration of Online Audio/Video Content Including Internet Drama and Micro Films. In 2014, SARFT released a Supplemental Notice on Improving the Administration of Online Audio/Video Content Including Internet Drama and Micro Films. This notice stresses that entities producing online audio/video content, such as internet dramas and micro films, must obtain a permit for radio and television program production and operation, and that online audio/video content service providers should not release any internet dramas or micro films that were produced by any entity lacking such permit. For internet dramas or micro films produced and uploaded by individual users, the online audio/video service providers transmitting such content will be deemed responsible as a producer. Further, under this notice, online audio/video service providers can only transmit content uploaded by individuals whose identity has been verified and such content shall comply with the relevant content management rules. This notice also requires that online audio/video content, including internet drama and micro films, be filed with the relevant authorities before release.

On April 25, 2016, the SARFT promulgated the Provisions on the Administration of Private Network and Targeted Transmission Audio/Video Program Services, which became effective as of June 1, 2016 and applies to the provision of radio, TV programs and other audio/video programs to targeted audience on TV and all types of handheld electronic equipment. The Provision covers the internet and other information networks as targeted transmission channels, including the provision of content, integrated broadcast control, transmission and distribution and other activities conducted in such forms as Internet protocol television (IPTV), private network mobile TV and Internet TV. Anyone who provides private network and targeted transmission audio/video program services must obtain an audio/video program transmission license, with a term of three years, issued by the SARFT and operate its business pursuant to the scope as provided in such license. Foreign-invested enterprises are not allowed to engage in the above referenced business.

On July 1, 2016, the MOC promulgated Notice on Strengthening the Administration of Network Performance, which regulates the behavior of entities operating network performance and performers. Entities operating network performance shall be responsible for the service and content post on their website which are provided by performers, perfect the content management mechanism, and shut down the channel and stop the spreading as soon as realize any network performance in violation of relevant laws and regulations. Network performers shall be responsible for their performances and shall not perform any program containing violence, pornography, or other similarly prohibited elements. The cultural administration authorities or cultural market enforcement authorities of relevant government supervise entities operating network performance and shall investigate all entities operating network performance in their thoroughly and publish any fine or action results or blacklist in time.

On September 2, 2016, the SARFT issued a Notice on Problems regarding Strengthening the Administration of Internet Audio/Video Programs Live Broadcasting Services, which provides that the provision of audio/video live broadcasting of important political, military, economic, social, cultural, sports and other activities and events requires an audio/video program transmission license which covers item (5) under internet audio/video program services category I, and the provision of audio/video live broadcasting of cultural activities by general social organizations, sports events and like activities requires an audio/video program transmission license which covers item (7) under internet audio/video program services category II.

On November 4, 2016, the Cyberspace Administration of China promulgated the Provisions on the Administration of Online Live Broadcasting Services, which became effective as of December 1, 2016. Such Provisions provides that anyone who provides online live broadcasting services through online performances, internet video/audio programs and so forth, shall obtain relevant qualifications as required by laws and regulations.

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In November 2016, the SARFT issued a Notice on Strengthening the Administration of Audio/Video Programs Transmission on Weibo, Wechat and Other Internet Social Networking Platforms, which further clarifies that anyone who operates internet audio/video services through Weibo, Wechat and other internet social networking platforms must obtain an audio/video program transmission license and operate its business pursuant to the scope as provided in such license.

As of the date of this annual report, we hold an internet audio/video program transmission license through Zhejiang Shengdian, a wholly-owned subsidiary that we acquired in March 2017.

Regulations on Online Comics and Internet Cultural Products

The Interim Administrative Provisions on Internet Culture was promulgated by MOC on February 17, 2011 and became effective on April 1, 2011. Pursuant to the Interim Administrative Provisions on Internet Culture, online comics are deemed to be online culture products, and any entity engaged in producing, transmitting and distributing online culture products shall apply for an internet culture operation license that includes the business scope of actual online activities. As of the date of this annual report, we have obtained an internet culture operation license and received the approval to expand the scope of the license to cover the operation of comic and animation products.

Regulations on Internet Publication and Cultural Products

The Administrative Measures for Internet Publication Service, or Internet Publication Measures, were jointly promulgated by the SARFT and the MIIT on February 6, 2016 and became effective on March 10, 2016. The Internet Publication Measures superseded the Tentative Measures for Internet Publication Administration, which were jointly promulgated by the SARFT and the MIIT in 2002. The Internet Publication Measures define internet publication service and internet publication item, and publication of internet publication item via the internet requires an internet publishing license. Pursuant to the Internet Publication Measures, online game constitutes an internet publication item and therefore, an online game operator shall obtain an internet publishing license so that it can directly offer its online games to the public in the PRC. As of the date of this annual report, we have not yet obtained an internet publishing license, and are in the process of preparing the application documents.

Regulations on Online Games and Foreign Ownership Restrictions

Pursuant to the Guidance Catalog, the internet culture business (other than online music business) falls within the category of industries prohibiting foreign investment. On February 17, 2011, the Ministry of Culture issued the revised Interim Provisions on the Administration of Internet Culture, or the Internet Culture Interim Provisions, effective as of April 1, 2011. According to the Internet Culture Interim Provisions, “internet cultural products” are defined as including the online games specially produced for Internet and games reproduced or provided through Internet. Provision of operating Internet cultural products and related services is subject to the approval of the Ministry of Culture or its provincial counterpart.

On June 3, 2010, the Ministry of Culture promulgated the Provisional Administration Measures of Online Games, or the Online Game Measures, which came into effect on August 1, 2010. The Online Game Measures governs the research, development and operation of online games and the issuance and trading services of virtual currency. Under the Online Game Measures, all operators of online games, issuers of virtual currencies and providers of virtual currency trading services, or Online Game Business Operators, are required to obtain internet culture operation licenses. An internet culture operation license is valid for three years and in case of renewal, the renewal application should be submitted 30 days prior to the expiry date of such license.

In addition, Online Game Business Operators should request the valid identity certificate of game users for registration, and notify the public 60 days ahead of the termination of any online game operations or the transfer of online game operational rights. Online game business operators are also prohibited from (i) setting compulsory matters in the online games without game users’ consent; (ii) advertising or promoting the online games that contain prohibited content, such as anything that compromise state security or divulges state secrets; and (iii) inducing game users to input legal currencies or virtual currencies to gain online game products or services, by way of random draw or other incidental means. The Online Game Measures also states that the state cultural administration authorities will formulate the compulsory clauses of a standard online game service agreement, which have been promulgated on July 29, 2010 and are required to be incorporated into the service agreement entered into between online game business operators and game users, with no conflicts with the rest of clauses in such service agreements.

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On July 11, 2008, the General Office of the State Council promulgated the Regulation on Main Functions, Internal Organization and Staffing of the General Administration of Press and Publication, or the Regulation on Three Provisions. On September 14, 2009, the Central Organization Establishment Commission issued the corresponding interpretations, or the Interpretations on Three Provisions. The Regulation on Three Provisions and the Interpretation on Three Provisions granted the Ministry of Culture overall jurisdiction to regulate the online game industry, and granted the General Administration of Press and Publication the authority to issue approvals for the internet publication of online games. Specifically, (i) the Ministry of Culture is empowered to administrate online games (other than the pre-examination and approval before internet publication of online games); (ii) subject to the Ministry of Culture’s overall administration, General Administration of Press and Publication is responsible for the pre-examination and approval of the internet publication of online games; and (iii) once an online game is launched, the online game will be only administrated and regulated by the Ministry of Culture. As of March 31, 2018, 22 of the 27 online games we offered had completed the filing with the Ministry of Culture. If we fail to complete, obtain or maintain any of the required licenses or approvals or make the necessary filings, we may be subject to various penalties, such as confiscation of the net revenues that were generated through online games, the imposition of fines and the discontinuation or restriction of our operations of online games.

On September 28, 2009, the General Administration of Press and Publication, the National Copyright Administration and the National Working Group to Eliminate Pornography and Illegal Publications jointly issued the Circular on Consistent Implementation of the Stipulation on the Three Provisions of the State Council and the Relevant Interpretations of the State Commission for Public Sector Reform and the Further Strengthening of the Pre-examination and approval of Online Games and the Approval and Examination of Imported Online Games, or the GAPP Notice. The GAPP Notice explicitly prohibits foreign investors from directly or indirectly engaging in online game business in China, including through consolidated affiliated entities. Foreign investors are not allowed to indirectly control or participate in PRC operating companies’ online game operations, whether (i) by establishing other joint ventures, entering into contractual arrangements or providing technical support for such operating companies; or (ii) in a disguised form such as by incorporating or directing user registration, user account management or game card consumption into online game platforms that are ultimately controlled or owned by foreign companies. The GAPP Notice reiterates that the General Administration of Press and Publication is responsible for the examination and approval of the import and publication of online games and states that downloading from the internet is considered a publication activity, which is subject to approval from the General Administration of Press and Publication. Violations of the GAPP Notice will result in severe penalties. For detailed analysis, see “Risk Factors—Risks Related to Our Corporate Structure—If the PRC government finds that the agreements that establish the structure for operating our businesses in China do not comply with PRC regulations on foreign investment in internet and other related businesses, or if these regulations or their interpretation change in the future, we could be subject to severe penalties or be forced to relinquish our interests in those operations.”

On May 24, 2016, the SARFT promulgated the Circular on the Administration over Mobile Game Publishing Services, which became effective as of July 1, 2016. The Circular provides that game publishing service entities shall be responsible for examining the contents of their games and applying for game publication numbers. To apply for publication of domestically-developed mobile puzzle games that are not related to political, military, national or religious topics or contents and have no or simple story lines, entities shall submit the required documents to provincial publication administrative departments at least 20 working days prior to the expected date of online publication (public beta). Entities applying for publication of domestically-developed mobile games that are not included in abovementioned category shall go through stricter procedures, including submitting manager accounts for content review and testing accounts for game anti-indulgence system. Game publishing service entities must set up a specific page to display the information approved by the SARFT, including copyright owner of the game, publishing service entity, approval number, publication number and others, and shall take charge of examining and recording daily updates of the game. For mobile games (including pre-installed mobile games) that have been published and operated online before implementation of this Circular, to maintain the publication and operation of such games online, relevant approval procedures shall be made up by the game publishing service entities and enterprises with the provincial publication administrative departments before December 31, 2016 as required by this Circular. Otherwise, they shall cease to be published or operated online.

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Regulation on Information Security

The Standing Committee of the National People’s Congress promulgated the Cyber Security Law of the PRC, or the Cyber Security Law, which became effective on June 1, 2017, to protect cyberspace security and order. Pursuant to the Cyber Security Law, any individual or organization using the network must comply with the constitution and the applicable laws, follow the public order and respect social moralities, and must not endanger cyber security, or engage in activities by making use of the network that endanger the national security, honor and interests, or infringe on the fame, privacy, intellectual property and other legitimate rights and interests of others. The Cyber Security Law sets forth various security protection obligations for network operators, which are defined as “owners and administrators of networks and network service providers,” including, among others, complying with a series of requirements of tiered cyber protection systems; verifying users’ real identity; localizing the personal information and important data gathered and produced by key information infrastructure operators during operations within the PRC; and providing assistance and support to government authorities where necessary for protecting national security and investigating crimes. To comply with these laws and regulations, we have adopted security policies and measures to protect our cyber system and user information.

Regulations Relating to Internet Content and Information Security

The Administrative Measures on Internet Information Services specify that internet information services regarding news, publications, education, medical and health care, pharmacy and medical appliances, among other things, are to be examined, approved and regulated by the relevant authorities. Internet information providers are prohibited from providing services beyond those included in the scope of their ICP licenses or filings. Furthermore, these measures clearly specify a list of prohibited content. Internet information providers are prohibited from producing, copying, publishing or distributing information that is humiliating or defamatory to others or that infringes the lawful rights and interests of others. Internet information providers that violate the prohibition may face criminal charges or administrative sanctions by the PRC authorities. Internet information providers must monitor and control the information posted on their websites. If any prohibited content is found, they must remove the offensive content immediately, keep a record of it and report it to the relevant authorities. Beijing Momo, as an ICP license holder, is subject to these measures.

Internet information in China is also regulated and restricted from a national security standpoint. The Standing Committee of the National People’s Congress has enacted the Decisions on Maintaining Internet Security, which may subject violators to criminal punishment in China for any effort to: (i) gain improper entry into a computer or system of strategic importance; (ii) disseminate politically disruptive information; (iii) leak state secrets; (iv) spread false commercial information; or (v) infringe intellectual property rights. The Ministry of Public Security has promulgated measures that prohibit use of the internet in ways which, among other things, result in a leakage of state secrets or a spread of socially destabilizing content. As an ICP license holder, Beijing Momo is subject to the laws and regulations relating to information security.

In August 2013, the MOC issued the Administration Measures on Content Review by Internet Culture Operating Entities, or the Content Review Measures, which became effective on December 1, 2013. According to the Content Review Measures, an internet culture operating entity shall censor and review its products and services to be provided to the public to ensure that such products and services do not contain any content prohibited by law, and the censor record shall be kept for at least two years. Internet culture operating entities shall adopt technical measures to conduct real-time censor over the products and services, set up internal content control department and establish content control policies. If the internet culture operating entity identifies any illegal content, it shall immediately suspend the products or services containing such content and preserve relevant record, and, in the event that such illegal content might lead to material issues, report to provincial branch of MOC.

Regulations on Anti-fatigue Compliance System and Real-name Registration System

On April 15, 2007, eight PRC government authorities, including the General Administration of Press and Publication, the Ministry of Education, the Ministry of Public Security and the Ministry of Industry and Information Technology, jointly issued the Notice on Protecting Minors Mental and Physical Health and Implementation of Online Game Anti-fatigue System, which requires the implementation of an anti-fatigue compliance system and a real-name registration system by all PRC online game operators. Under the anti-fatigue compliance system, three hours or less of continuous playing by minors, defined as game players under 18 years of age, is considered to be “healthy”, three to five hours is deemed “fatiguing”, and five hours or more is deemed “unhealthy.” Game operators are required to reduce the value of in-game benefits to a game player by half if it discovers that the amount of a time a game player spends online has reached the “fatiguing” level, and to zero in the case of the “unhealthy” level.

To identify whether a game player is a minor and thus subject to the anti-fatigue compliance system, a real-name registration system should be adopted to require online game players to register their real identity information before playing online games. Pursuant to a notice issued by the relevant eight government authorities on July 1, 2011, online game operators must submit the identity information of game players to the National Citizen Identity Information Center, a subordinate public institution of the Ministry of Public Security, for verification as of October 1, 2011.

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Regulations Relating to Internet Information Services and Content of Internet Information

In September 2000, the State Council issued the Administrative Measures on Internet Information Services, or the Internet Measures, to regulate the provision of information services to online users through the internet. According to the Internet Measures, internet information services are divided into two categories: services of an operative nature and services of a non-operative nature. Our business conducted through our immomo.com website involves operating internet information services, which requires us to obtain an ICP license. If an internet information service provider fails to obtain an ICP license, the relevant local branch of the Ministry of Industry and Information Technology may levy fines, confiscate its income or even block its website. When the ICP service involves areas of news, publication, education, medical treatment, health, pharmaceuticals and medical equipment, and if required by law or relevant regulations, specific approval from the respective regulatory authorities must be obtained prior to applying for the ICP license from the Ministry of Industry and Information Technology or its provincial level counterpart. Our affiliated PRC entity, Beijing Momo, currently holds an ICP license issued by Beijing Communications Administration, a local branch of the Ministry of Industry and Information Technology. Our ICP license will expire in January 2022.

Regulations Relating to Privacy Protection

As an internet content provider, we are subject to regulations relating to protection of privacy. In recent years, PRC government authorities have enacted laws and regulations on internet use to protect personal information from any unauthorized disclosure. The Administrative Measures on Internet Information Services prohibit ICP service operators from insulting or slandering a third party or infringing upon the lawful rights and interests of a third party. Under the Several Provisions on Regulating the Market Order of Internet Information Services, issued by the Ministry of Industry and Information Technology in 2011, an ICP service operator may not collect any user personal information or provide such information to third parties without the consent of a user. An ICP service operator must expressly inform the users of the method, content and purpose for the collection and processing of such user personal information and may only collect such information necessary for the provision of its services. An ICP service operator is also required to properly keep the user personal information, and in case of any leak or likely leak of the user personal information, the ICP service operator must take immediate remedial measures and, in severe circumstances, to make an immediate report to the telecommunications regulatory authority. In addition, pursuant to the Decision on Strengthening the Protection of Online Information issued by the Standing Committee of the National People’s Congress in December 2012 and the Order for the Protection of Telecommunication and Internet User Personal Information issued by the Ministry of Industry and Information Technology in July 2013, any collection and use of user personal information must be subject to the consent of the user, abide by the principles of legality, rationality and necessity and be within the specified purposes, methods and scopes. An ICP service operator must also keep such information strictly confidential, and is further prohibited from divulging, tampering or destroying of any such information, or selling or providing such information to other parties. Any violation of the above decision or order may subject the ICP service operator to warnings, fines, confiscation of illegal gains, revocation of licenses, cancelation of filings, closedown of websites or even criminal liabilities. We are subject to these regulations as an online business operator.

Regulations Relating to Taxation

In January 2008, the PRC Enterprise Income Tax Law took effect. The PRC Enterprise Income Tax Law applies a uniform 25% enterprise income tax rate to both foreign-invested enterprises and domestic enterprises, except where tax incentives are granted to special industries and projects. Under the PRC Enterprise Income Tax Law and its implementation regulations, dividends generated from the business of a PRC subsidiary after January 1, 2008 and payable to its foreign investor may be subject to a withholding tax rate of 10% if the PRC tax authorities determine that the foreign investor is a non-resident enterprise, unless there is a tax treaty with China that provides for a preferential withholding tax rate. Distributions of earnings generated before January 1, 2008 are exempt from PRC withholding tax.

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Under the PRC Enterprise Income Tax Law, an enterprise established outside China with “de facto management bodies” within China is considered a “resident enterprise” for PRC enterprise income tax purposes and is generally subject to a uniform 25% enterprise income tax rate on its worldwide income. A circular issued by the State Administration of Taxation in April 2009 regarding the standards used to classify certain Chinese-invested enterprises controlled by Chinese enterprises or Chinese enterprise groups and established outside of China as “resident enterprises” clarified that dividends and other income paid by such PRC “resident enterprises” will be considered PRC-source income and subject to PRC withholding tax, currently at a rate of 10%, when paid to non-PRC enterprise shareholders. This circular also subjects such PRC “resident enterprises” to various reporting requirements with the PRC tax authorities. Under the implementation regulations to the PRC Enterprise Income Tax Law, a “de facto management body” is defined as a body that has material and overall management and control over the manufacturing and business operations, personnel and human resources, finances and properties of an enterprise. In addition, the tax circular mentioned above specifies that certain PRC-invested overseas enterprises controlled by a Chinese enterprise or a Chinese enterprise group in the PRC will be classified as PRC resident enterprises if the following are located or resided in the PRC: senior management personnel and departments that are responsible for daily production, operation and management; financial and personnel decision making bodies; key properties, accounting books, the company seal, and minutes of board meetings and shareholders’ meetings; and half or more of the senior management or directors who have the voting rights.

Pursuant to the Arrangement between Mainland China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Tax Evasion on Income, the withholding tax rate in respect to the payment of dividends by a PRC enterprise to a Hong Kong enterprise is reduced to 5% from a standard rate of 10% if the Hong Kong enterprise directly holds at least 25% of the PRC enterprise. Pursuant to the Notice of the State Administration of Taxation on the Issues concerning the Application of the Dividend Clauses of Tax Agreements, or Circular 81, a Hong Kong resident enterprise must meet the following conditions, among others, in order to enjoy the reduced withholding tax: (i) it must be a company; (ii) it must directly own the required percentage of equity interests and voting rights in the PRC resident enterprise; and (iii) it must have directly owned such required percentage in the PRC resident enterprise throughout the 12 months prior to receiving the dividends. Furthermore, the Administrative Measures for Non-Resident Enterprises to Enjoy Treatments under Tax Treaties (For Trial Implementation), which became effective in October 2009, require that non-resident enterprises must obtain approval from the relevant tax authority in order to enjoy the reduced withholding tax rate. There are also other conditions for enjoying the reduced withholding tax rate according to other relevant tax rules and regulations. Accordingly, Momo Technology HK Company Limited may be able to benefit from the 5% withholding tax rate for the dividends it receives from Beijing Momo, if it satisfies the conditions prescribed under Circular 81 and other relevant tax rules and regulations, and obtain the approvals as required. However, according to Circular 81, if the relevant tax authorities consider the transactions or arrangements we have are for the primary purpose of enjoying a favorable tax treatment, the relevant tax authorities may adjust the favorable withholding tax in the future.

In January 2009, the SAT promulgated the Provisional Measures for the Administration of Withholding of Enterprise Income Tax for Non-resident Enterprises, or the Non-resident Enterprises Measures, pursuant to which entities that have direct obligation to make certain payments to a non-resident enterprise shall be the relevant tax withholders for such non-resident enterprise. Further, the Non-resident Enterprises Measures provides that, in case of an equity transfer between two non-resident enterprises which occurs outside China, the non-resident enterprise which receives the equity transfer payment shall, by itself or engage an agent to, file tax declaration with the PRC tax authority located at place of the PRC company whose equity has been transferred, and the PRC company whose equity has been transferred shall assist the tax authorities to collect taxes from the relevant non-resident enterprise. On April 30, 2009, the MOF and the SAT jointly issued the Notice on Issues Concerning Process of Enterprise Income Tax in Enterprise Restructuring Business, or Circular 59. On December 10, 2009, the SAT issued the Notice on Strengthening the Administration of the Enterprise Income Tax concerning Proceeds from Equity Transfers by Non-resident Enterprises, or Circular 698. Both Circular 59 and Circular 698 became effective retroactively as of January 1, 2008. By promulgating and implementing these two circulars, the PRC tax authorities have enhanced their scrutiny over the direct or indirect transfer of equity interests in a PRC resident enterprise by a non-resident enterprise.

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On February 3, 2015, the SAT issued a Public Notice [2015] No. 7, or Public Notice 7, to supersede existing provisions in relation to the Indirect Transfer as set forth in Circular 698, while the other provisions of Circular 698 remain in force. Public Notice 7 introduces a new tax regime that is significantly different from that under Circular 698. Public Notice extends its tax jurisdiction to capture not only Indirect Transfer as set forth under Circular 698 but also transactions involving transfer of immovable property in China and assets held under the establishment and place, in China of a foreign company through the offshore transfer of a foreign intermediate holding company. Public Notice 7 also addresses transfer of the equity interest in a foreign intermediate holding company widely. In addition, Public Notice 7 provides clearer criteria than Circular 698 on how to assess reasonable commercial purposes and introduces safe harbor scenarios applicable to internal group restructurings. However, it also brings challenges to both the foreign transferor and transferee of the Indirect Transfer as they have to make self-assessment on whether the transaction should be subject to PRC tax and to file or withhold the PRC tax accordingly. In October 2017, the SAT issued the Announcement of the State Administration of Taxation on Issues Concerning the Withholding of Non-resident Enterprise Income Tax at Source, or Bulletin 37, which came into effect on December 1, 2017. The Bulletin 37 replaced and superseded, among other circulars, Circular 698, and further clarifies the practice and procedures of the withholding of non-resident enterprise income tax. Where a non-resident enterprise transfers taxable assets indirectly by disposing of the equity interests of an overseas holding company, which is an Indirect Transfer, the non-resident enterprise as either the transferor or the transferee, or the PRC entity that directly owns the taxable assets, may report such Indirect Transfer to the relevant tax authority.

Where non-resident investors were involved in our private equity financing, if such transactions were determined by the tax authorities to lack reasonable commercial purpose, we and our non-resident investors may become at risk of being taxed under Bulletin 37 and Public Notice 7 and may be required to expend valuable resources to comply with Bulletin 37 and Public Notice 7 or to establish that we should not be taxed under Bulletin 37 and Public Notice 7.

The PRC tax authorities have the discretion under SAT Circular 59, Bulletin 37 and Public Notice 7 to make adjustments to the taxable capital gains based on the difference between the fair value of the equity interests transferred and the cost of investment.

Value Added Tax

On January 1, 2012, the Chinese State Council officially launched a pilot value-added tax (“VAT”) reform program, or Pilot Program, applicable to businesses in selected industries. Businesses in the Pilot Program would pay VAT instead of business tax. The Pilot Industries in Shanghai included industries involving the leasing of tangible movable property, transportation services, research and development and technical services, information technology services, cultural and creative services, logistics and ancillary services, certification and consulting services. Revenues generated by advertising services, a type of “cultural and creative services,” are subject to the VAT tax rate of 6%. According to official announcements made by competent authorities in Beijing and Guangdong province, Beijing launched the same Pilot Program on September 1, 2012, and Guangdong province launched it on November 1, 2012. On May 24, 2013, the Ministry of Finance, or the MoF, and the State Administration of Taxation, or the SAT, issued the Circular on Tax Policies in the Nationwide Pilot Collection of Value Added Tax in Lieu of Business Tax in the Transportation Industry and Certain Modern Services Industries, or the Circular 37. The scope of certain modern services industries under the Circular 37 extends to the inclusion of radio and television services. On August 1, 2013, the Pilot Program was implemented throughout China. On December 12, 2013, the MoF and the SAT issued the Circular on the Inclusion of the Railway Transport Industry and Postal Service Industry in the Pilot Collection of Value-added Tax in Lieu of Business Tax, or Circular 106. Among the other things, Circular 106 abolished Circular 37, and refined the policies for the Pilot Program. On April 29, 2014, the MoF and the SAT issued the Circular on the Inclusion of Telecommunications Industry in the Pilot Collection of Value-added Tax in Lieu of Business Tax. On March 23, 2016, the MoF and the SAT issued the Circular on Comprehensively Promoting the Pilot Program of the Collection of Value-added Tax in Lieu of Business Tax. Effective from May 1, 2016, the PRC tax authorities collect VAT in lieu of Business Tax in all regions and industries. All of our entities were subject to VAT at the rate of 6% for services provided and 17% for goods sold as of December 31, 2017.

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Regulations Relating to Copyright and Trademark Protection

China has adopted legislation governing intellectual property rights, including copyrights and trademarks. China is a signatory to major international conventions on intellectual property rights and is subject to the Agreement on Trade Related Aspects of Intellectual Property Rights as a result of its accession to the World Trade Organization in December 2001.

Copyright. The National People’s Congress amended the Copyright Law in 2001 and 2010 to widen the scope of works and rights that are eligible for copyright protection. The amended Copyright Law extends copyright protection to Internet activities, products disseminated over the Internet and software products. In addition, there is a voluntary registration system administered by the China Copyright Protection Center. To address copyright infringement related to content posted or transmitted over the internet, the National Copyright Administration and former Ministry of Information Industry jointly promulgated the Administrative Measures for Copyright Protection Related to the Internet in April 2005. These measures became effective in May 2005. To comply with these laws and regulations, we have implemented internal procedures to monitor and review the content we have been licensed from content providers before they are released on our platform and remove any infringing content promptly after we receive notice of infringement from the legitimate rights holder.

On December 20, 2001, the State Council promulgated the new Regulations on Computer Software Protection, effective from January 1, 2002, which are intended to protect the rights and interests of the computer software copyright holders and encourage the development of software industry and information economy. In the PRC, software developed by PRC citizens, legal persons or other organizations is automatically protected immediately after its development, without an application or approval. Software copyright may be registered with the designated agency and if registered, the certificate of registration issued by the software registration agency will be the primary evidence of the ownership of the copyright and other registered matters. On February 20, 2002, the National Copyright Administration of the PRC introduced the Measures on Computer Software Copyright Registration, which outline the operational procedures for registration of software copyright, as well as registration of software copyright license and transfer contracts. The Copyright Protection Center of China is mandated as the software registration agency under the regulations.

The State Council and the National Copyright Administration have promulgated various rules and regulations and rules relating to protection of software in China, including the Regulations on Protection of Computer Software promulgated by State Council on January 30, 2013 and effective since March 1, 2013, and the Measures for Registration of Copyright of Computer Software promulgated by SARFT on February 20, 2002 and effective since the same date. According to these rules and regulations, software owners, licensees and transferees may register their rights in software with the National Copyright Administration or its local branches and obtain software copyright registration certificates. Although such registration is not mandatory under PRC law, software owners, licensees and transferees are encouraged to go through the registration process and registered software rights may be entitled to better protections. As of December 31, 2017, we had registered 82 software copyrights in China.

Trademark. The PRC Trademark Law, adopted in 1982 and revised in 1993, 2001 and 2013 respectively, protects the proprietary rights to registered trademarks. The Trademark Office under the State Administration for Industry and Commerce handles trademark registrations and may grant a term of ten years for registered trademarks, which may be extended for another ten years upon request. Trademark license agreements shall be filed with the Trademark Office for record. In addition, if a registered trademark is recognized as a well-known trademark, the protection of the proprietary right of the trademark holder may reach beyond the specific class of the relevant products or services. As of December 31, 2017, we had 232 registered trademarks and 259 trademark applications in China.

Regulations Relating to Foreign Exchange

Pursuant to the Regulations on the Administration of Foreign Exchange issued by the State Council and effective in 1996, as amended in January 1997 and August 2008, respectively, current account transactions, such as the sale or purchase of goods, are not subject to PRC governmental approvals. Certain organizations in the PRC, including foreign-invested enterprises, may purchase, sell and/or remit foreign currencies at certain banks authorized to conduct foreign exchange business upon providing valid commercial documents. However, approval of the PRC State Administration of Foreign Exchange, or SAFE, is required for capital account transactions.

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In August 2008, SAFE issued a circular on the conversion of foreign currency into Renminbi by a foreign-invested company that regulates how the converted Renminbi may be used, or the SAFE Circular 142. The circular requires that the registered capital of a foreign-invested enterprise converted into Renminbi from foreign currencies may only be utilized for purposes within its business scope. For example, such converted amounts may not be used for investments in or acquisitions of other companies, which can inhibit the ability of companies to consummate such transactions. In addition, SAFE strengthened its oversight of the flow and use of the Renminbi registered capital of foreign-invested enterprises converted from foreign currencies. The use of such Renminbi capital may not be changed without SAFE’s approval, and may not in any case be used to repay Renminbi loans if the proceeds of such loans have not been utilized. Furthermore, SAFE promulgated a circular in November 2010, which, among other things, requires the authenticity of settlement of net proceeds from offshore offerings to be closely examined and the net proceeds to be settled in the manner described in the offering documents. Violations may result in severe penalties, such as heavy fines.

In November 2012, SAFE promulgated the Circular of Further Improving and Adjusting Foreign Exchange Administration Policies on Foreign Direct Investment which substantially amends and simplifies the current foreign exchange procedure. Pursuant to this circular, the opening of various special purpose foreign exchange accounts (e.g. pre-establishment expenses account, foreign exchange capital account, guarantee account), the reinvestment of RMB proceeds by foreign investors in the PRC, and remittance of foreign exchange profits and dividends by a foreign-invested enterprise to its foreign shareholders no longer require the approval or verification of SAFE, and multiple capital accounts for the same entity may be opened in different provinces, which was not possible before. In addition, SAFE promulgated the Circular on Printing and Distributing the Provisions on Foreign Exchange Administration over Domestic Direct Investment by Foreign Investors and the Supporting Documents in May 2013, which specifies that the administration by SAFE or its local branches over direct investment by foreign investors in the PRC shall be conducted by way of registration and banks shall process foreign exchange business relating to the direct investment in the PRC based on the registration information provided by SAFE and its branches.

In April 8, 2015, SAFE promulgated the Circular on Reforming the Management Approach Regarding the Foreign Exchange Capital Settlement of Foreign-invested Enterprises, which will, upon its effective date as of June 1, 2015, supersedes the SAFE Circular 142. This circular provides that, among other things, the foreign-invested company may convert the foreign currency in its capital account into RMB on a “at will” basis and the RMB funds so converted can be used for equity investments.

On June 9, 2016, SAFE promulgated the Circular on Reforming and Regulation of Administrative Policy on Settlement of Foreign Exchange of Capital Account, or SAFE Circular 16, which became effective on June 9, 2016. According to SAFE Circular 16, the foreign exchange capital of FIEs, foreign debt and funds raised through offshore listing may be settled on a discretionary basis, and can be settled at the banks. The proportion of such discretionary settlement is temporarily determined as 100%. The RMB converted from relevant foreign exchange will be kept in a designated account, and if a domestic enterprise needs to make further payment from such account, it still must provide supporting documents and go through the review process with the banks.

Furthermore, SAFE Circular 16 reiterates that the use of capital by domestic enterprises must adhere to the principles of authenticity and self-use within the business scope of enterprises. The foreign exchange income of capital account and RMB obtained by domestic enterprise from foreign exchange settlement must not be used (i) directly or indirectly for payment beyond the business scope of the enterprises or payment prohibited by relevant laws and regulations; (ii) directly or indirectly for investment in securities and investment in wealth management products except for principal-guaranteed bank wealth management products, unless otherwise provided by relevant laws and regulations; (iii) directly or indirectly for extending entrusted loans to non-affiliate enterprises, unless permitted by the scope of business; and/or (iv) for construction or purchase of real estate that is not for self-use, except for foreign-invested real estate enterprises.

Regulations Relating to Labor

Pursuant to the PRC Labor Law effective in 1995 and the PRC Labor Contract Law effective in 2008, a written labor contract is required when an employment relationship is established between an employer and an employee. Other labor-related regulations and rules of the PRC stipulate the maximum number of working hours per day and per week as well as the minimum wages. An employer is required to set up occupational safety and sanitation systems, implement the national occupational safety and sanitation rules and standards, educate employees on occupational safety and sanitation, prevent accidents at work and reduce occupational hazards.

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In the PRC, workers dispatched by an employment agency are normally engaged in temporary, auxiliary or substitute work. Pursuant to the PRC Labor Contract Law, an employment agency is the employer for workers dispatched by it and shall perform an employer’s obligations toward them. The employment contract between the employment agency and the dispatched workers, and the placement agreement between the employment agency and the company that receives the dispatched workers shall be in writing. Furthermore, the company that accepts the dispatched workers shall be jointly and severally liable for any damage caused to the dispatched workers due to violation of the Labor Contract Law by the employment agencies arising from their contracts with dispatched workers. An employer is obligated to sign an indefinite term labor contract with an employee if the employer continues to employ the employee after two consecutive fixed-term labor contracts. The employer also has to pay compensation to the employee if the employer terminates an indefinite term labor contract. Except where the employer proposes to renew a labor contract by maintaining or raising the conditions of the labor contract and the employee is not agreeable to the renewal, an employer is required to compensate the employee when a definite term labor contract expires. Furthermore, under the Regulations on Paid Annual Leave for Employees issued by the State Council in December 2007 and effective as of January 2008, an employee who has served an employer for more than one year and less than ten years is entitled to a five-day paid vacation, those whose service period ranges from 10 to 20 years is entitled to a 10-day paid vacation, and those who has served for more than 20 years is entitled to a 15-day paid vacation. An employee who does not use such vacation time at the request of the employer shall be compensated at three times their normal salaries for each waived vacation day.

Pursuant to the Regulations on Occupational Injury Insurance effective in 2004, as amended in 2010, and the Interim Measures concerning the Maternity Insurance for Enterprise Employees effective in 1995, PRC companies must pay occupational injury insurance premiums and maternity insurance premiums for their employees. Pursuant to the Interim Regulations on the Collection and Payment of Social Insurance Premiums effective in 1999 and the Interim Measures concerning the Administration of the Registration of Social Insurance effective in 1999, basic pension insurance, medical insurance and unemployment insurance are collectively referred to as social insurance. Both PRC companies and their employees are required to contribute to the social insurance plans. Pursuant to the Regulations on the Administration of Housing Fund effective in 1999, as amended in 2002, PRC companies must register with applicable housing fund management centers and establish a special housing fund account in an entrusted bank. Both PRC companies and their employees are required to contribute to the housing funds.

According to the Social Insurance Law, an employer that fails to make social insurance contributions may be ordered to pay the required contributions within a stipulated deadline and be subject to a late fee. If the employer still fails to rectify the failure to make social insurance contributions within the stipulated deadline, it may be subject to a fine ranging from one to three times the amount overdue. According to the Regulations on Administration of Housing Fund, an enterprise that fails to make housing fund contributions may be ordered to rectify the noncompliance and pay the required contributions within a stipulated deadline; otherwise, an application may be made to a local court for compulsory enforcement.

Regulations Relating to Dividend Distribution

Wholly foreign-owned companies in the PRC may pay dividends only out of their accumulated profits after tax as determined in accordance with PRC accounting standards. Remittance of dividends by a wholly foreign-owned enterprise out of China is subject to examination by the banks designated by SAFE. Wholly foreign-owned companies may not pay dividends unless they set aside at least 10% of their respective accumulated profits after tax each year, if any, to fund certain reserve funds, until such time as the accumulative amount of such fund reaches 50% of the wholly foreign-owned company’s registered capital. These reserve funds are not distributable as cash dividends.

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SAFE Regulations on Offshore Special Purpose Companies Held by PRC Residents or Citizens

SAFE Circular on Relevant Issues Relating to Domestic Resident’s Investment and Financing and Roundtrip Investment through Special Purpose Vehicles, or Circular 37, issued by SAFE and effective in July 2014, regulates foreign exchange matters in relation to the use of special purpose vehicles, or SPVs, by PRC residents or entities to seek offshore investment and financing and conduct round trip investment in China. Under Circular 37, a SPV refers to an offshore entity established or controlled, directly or indirectly, by PRC residents or entities for the purpose of seeking offshore financing or making offshore investment, using legitimate domestic or offshore assets or interests, while “round trip investment” refers to the direct investment in China by PRC residents or entities through SPVs, namely, establishing foreign-invested enterprises to obtain the ownership, control rights and management rights. Circular 37 requires that, before making contribution into an SPV, PRC residents or entities are required to complete foreign exchange registration with the SAFE or its local branch. SAFE Circular 37 further provides that option or share-based incentive tool holders of a non-listed SPV can exercise the options or share incentive tools to become a shareholder of such non-listed SPV, subject to registration with SAFE or its local branch.

PRC residents or entities who have contributed legitimate domestic or offshore interests or assets to SPVs but have yet to obtain SAFE registration before the implementation of the Circular 37 shall register their ownership interests or control in such SPVs with SAFE or its local branch. An amendment to the registration is required if there is a material change in the SPV registered, such as any change of basic information (including change of such PRC residents, name and operation term), increases or decreases in investment amount, transfers or exchanges of shares, or mergers or divisions. Failure to comply with the registration procedures set forth in Circular 37, or making misrepresentation on or failure to disclose controllers of foreign-invested enterprise that is established through round-trip investment, may result in restrictions on the foreign exchange activities of the relevant foreign-invested enterprises, including payment of dividends and other distributions, such as proceeds from any reduction in capital, share transfer or liquidation, to its offshore parent or affiliate, and the capital inflow from the offshore parent, and may also subject relevant PRC residents or entities to penalties under PRC foreign exchange administration regulations.

We have completed the foreign exchange registration of PRC resident shareholders of Mr. Yan Tang, Mr. Yong Li and Mr. Xiaoliang Lei for our financings and share transfer.

M&A Rule and Overseas Listing

In August 2006, six PRC regulatory agencies, including China Securities Regulatory Commission, or CSRC, jointly adopted the Provisions Regarding Mergers and Acquisitions of Domestic Enterprises by Foreign Investors, or the M&A Rule, which became effective in September 2006. This M&A Rule purports to require, among other things, offshore SPVs, formed for listing purposes through acquisition of PRC domestic companies and controlled by PRC companies or individuals, to obtain the approval of the CSRC prior to publicly listing their securities on an overseas stock exchange. We believe that CSRC approval is not required in the context of our initial public offering as we are not a special purpose vehicle formed for listing purpose through acquisition of domestic companies that are controlled by our PRC individual shareholders, as we acquired contractual control rather than equity interests in our domestic affiliated entities.

However, we cannot assure you that the relevant PRC government agency, including the CSRC, would reach the same conclusion as we do. If the CSRC or other PRC regulatory agency subsequently determines that we need to obtain the CSRC’s approval for our initial public offering or if CSRC or any other PRC government authorities will promulgate any interpretation or implementing rules before our listing that would require CSRC or other governmental approvals for our initial public offering, we may face sanctions by the CSRC or other PRC regulatory agencies. In such event, these regulatory agencies may impose fines and penalties on our operations in the PRC, limit our operating privileges in the PRC, delay or restrict the repatriation of the proceeds from our initial public offering into the PRC, or take other actions that could have a material adverse effect on our business, financial condition, results of operations, and prospects, as well as the trading price of our ADSs.

SAFE Regulations on Employee Share Options

Pursuant to the Notice on Issues Concerning the Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive Plan of Overseas Publicly Listed Company, or Circular 7, issued by SAFE in February 2012, employees, directors, supervisors and other senior management participating in any stock incentive plan of an overseas publicly listed company who are PRC citizens or who are non-PRC citizens residing in China for a continuous period of not less than one year, subject to a few exceptions, are required to register with SAFE through a domestic qualified agent, which could be a PRC subsidiary of such overseas listed company, and complete certain other procedures. Failure to complete the SAFE registrations may subject them to fines and legal sanctions and may also limit our ability to contribute additional capital into our wholly foreign-owned subsidiaries in China and limit these subsidiaries’ ability to distribute dividends to us.

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In addition, the State Administration for Taxation has issued certain circulars concerning employee share options or restricted shares. Under these circulars, the employees working in the PRC who exercise share options or are granted restricted shares will be subject to PRC individual income tax. The PRC subsidiaries of such overseas listed company have obligations to file documents related to employee share options or restricted shares with relevant tax authorities and to withhold individual income taxes of those employees who exercise their share options. If the employees fail to pay or the PRC subsidiaries fail to withhold their income taxes according to relevant laws and regulations, the PRC subsidiaries may face sanctions imposed by the tax authorities or other PRC government authorities. These registrations and filings are a matter of foreign exchange control and tax procedure and the grant of share incentive awards to employees is not subject to the government’s discretionary approval. Compliance with PRC regulations on employee incentive plans has not had, and we believe will not in the future have, any material adverse effect on the implementation of our 2012 Plan and 2014 Plan.

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The following diagram illustrates our corporate structure, including our subsidiaries, consolidated affiliated entity and its subsidiaries as of the date of this annual report.

Notes:

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Contractual Arrangements with Beijing Momo

PRC laws and regulations place certain restrictions on foreign investment in and ownership of internet-based businesses. Accordingly, we conduct our operations in China principally through Beijing Momo and its subsidiaries, over which we exercise effective control through contractual arrangements among Beijing Momo IT, Beijing Momo and its shareholders.

The contractual arrangements allow us to:

As a result of these contractual arrangements, we are the primary beneficiary of Beijing Momo and its subsidiaries, and, therefore, have consolidated the financial results of Beijing Momo and its subsidiaries in our consolidated financial statements in accordance with U.S. GAAP.

The following is a summary of the currently effective contractual arrangements by and among our wholly-owned subsidiary, Beijing Momo IT, Beijing Momo and the shareholders of Beijing Momo. Beijing Momo IT has also entered into an exclusive cooperation agreement and a supplemental agreement with each of Chengdu Momo, Tianjin Heer and Loudi Momo.

Business operation agreement. Under the business operation agreement entered into among Beijing Momo IT, Beijing Momo and the shareholders of Beijing Momo on April 18, 2012, as supplemented on June 9, 2014, the shareholders of Beijing Momo agreed that Beijing Momo would not enter into any transaction that could materially or adversely affect its assets, business, interests or operations without prior written consent from Beijing Momo IT, including conducting business beyond the usual and normal scope, entering into any loan or other debtor-creditor relationship with third party, selling or disposing of assets or rights, including intellectual property rights, and creating guarantees or any other security on any of its assets or intellectual property rights in favor of a third party. In addition, the shareholders of Beijing Momo agreed to vote for or appoint nominees designated by Beijing Momo IT to serve as Beijing Momo’s directors, chairman, general managers, financial controllers and other senior managers. Furthermore, Beijing Momo’s shareholders agreed to accept and implement proposals set forth by Beijing Momo IT regarding employment, day-to-day business operations and financial management. Beijing Momo IT is entitled to any dividends or other interests declared by Beijing Momo and the shareholders of Beijing Momo have agreed to promptly transfer such dividends or other interests to Beijing Momo IT. These agreements have an initial term of ten years from the date of execution, and may be extended at the discretion of Beijing Momo IT. Beijing Momo IT may terminate this agreement at any time by giving a prior written notice to Beijing Momo and its shareholders. Neither Beijing Momo nor its shareholders may terminate this agreement.

Exclusive call option agreements. Under the exclusive call option agreements between Beijing Momo IT, Beijing Momo and each of the shareholders of Beijing Momo entered into on April 18, 2012, and amended and restated on April 18, 2014, each of the shareholders of Beijing Momo irrevocably granted Beijing Momo IT an exclusive option to purchase, to the extent permitted under PRC law, all or part of their equity interests in Beijing Momo for a nominal price of RMB10 or the lowest price permitted under PRC law. In addition, Beijing Momo irrevocably granted Beijing Momo IT an exclusive and irrevocable option to purchase any or all of the assets owned by Beijing Momo at the lowest price permitted under PRC law. Without Beijing Momo IT’s prior written consent, Beijing Momo and its shareholders will not sell, transfer, mortgage or otherwise dispose of Beijing Momo’s material assets, legal or beneficial interests or revenues of more than RMB500,000, or allow an encumbrance on any interest in Beijing Momo. These agreements will remain effective until all equity interests held in Beijing Momo by its shareholders are transferred or assigned to Beijing Momo IT.

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Equity interest pledge agreements. Under the equity interest pledge agreements between Beijing Momo IT, Beijing Momo and the shareholders of Beijing Momo entered into on April 18, 2012, and amended and restated on April 18, 2014, the shareholders of Beijing Momo pledged all of their equity interests in Beijing Momo (including any equity interest subsequently acquired) to Beijing Momo IT to guarantee the performance by Beijing Momo and its shareholders of their respective obligations under the contractual arrangements, including the payments due to Beijing Momo IT for services provided. If Beijing Momo or any of its shareholders breach their obligations under these contractual arrangements, Beijing Momo IT, as the pledgee, will be entitled to certain rights and remedies, including priority in receiving the proceeds from the auction or disposal of the pledged equity interests in Beijing Momo. Beijing Momo IT has the right to receive dividends generated by the pledged equity interests during the term of the pledge. The pledge becomes effective on the date when the pledge of equity interests contemplated under the agreement is registered with the relevant local administration for industry and commerce and will remain binding until Beijing Momo and its shareholders discharge all their obligations under the contractual arrangements. We have registered the equity interest pledge agreements with Chaoyang Branch of Beijing Administration for Industry and Commerce in Beijing.

Powers of attorney. Pursuant to the powers of attorney entered into on April 18, 2012 and amended and restated on April 18, 2014, each shareholder of Beijing Momo irrevocably appointed Beijing Momo IT as their attorney-in-fact to act for all matters pertaining to Beijing Momo and to exercise all of their rights as shareholders of Beijing Momo, including attending shareholders’ meetings and designating and appointing legal representatives, directors and senior management members of Beijing Momo. Beijing Momo IT may authorize or assign its rights under this appointment to any other person or entity at its sole discretion without prior notice to or prior consent from the shareholders of Beijing Momo. Each power of attorney remains in force until the shareholder ceases to hold any equity interest in Beijing Momo.

Spousal consent letters. Under the spousal consent letters, each spouse of the married shareholders of Beijing Momo unconditionally and irrevocably agreed that the equity interest in Beijing Momo held by and registered in the name of their spouse will be disposed of pursuant to the equity interest pledge agreement, the exclusive call option agreement, and the power of attorney. Each spouse agreed not to assert any rights over the equity interest in Beijing Momo held by their spouse. In addition, in the event that the spouses obtain any equity interest in Beijing Momo held by their spouse for any reason, they agreed to be bound by the contractual arrangements.

Exclusive cooperation agreements. Beijing Momo IT entered into an exclusive cooperation agreement and a supplemental agreement with Beijing Momo and Chengdu Momo, respectively, on August 31, 2014 to supersede the exclusive technology consulting and management services agreement signed in April 2012 between Beijing Momo IT and Beijing Momo. In May 2016 and December 2017, Beijing Momo IT entered into an exclusive cooperation agreement and a supplemental agreement with Tianjin Heer and Loudi Momo, respectively. Pursuant to the aforesaid exclusive cooperation agreements, each as amended, Beijing Momo IT has the exclusive right to provide, among other things, licenses, copyrights, technical and non-technical services to Beijing Momo, Chengdu Momo, Tianjin Heer and Loudi Momo and receive service fees and license fees as consideration. Beijing Momo, Chengdu Momo, Tianjin Heer and Loudi Momo will maintain a pre-determined level of operating profit and remit any excess operating profit to Beijing Momo IT as consideration for the licenses, copyrights, technical and non-technical services provided by Beijing Momo IT. Each agreement has an initial term of ten years from the date of execution, and may be extended at the sole discretion of Beijing Momo IT. Beijing Momo IT may terminate the agreement at any time with a 30-day notice to Beijing Momo, Chengdu Momo, Tianjin Heer and Loudi Momo, as applicable, but Beijing Momo, Chengdu Momo, Tianjin Heer and Loudi Momo may not terminate the agreement.

In the opinion of Han Kun Law Offices, our PRC counsel:

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However, there are substantial uncertainties regarding the interpretation and application of current and future PRC laws, regulations and rules. Accordingly, the PRC regulatory authorities may in the future take a view that is contrary to the above opinion of our PRC counsel. If the PRC government finds that the agreements that establish the structure for operating our business do not comply with PRC government restrictions on foreign investment in our businesses, we could be subject to severe penalties, including being prohibited from continuing operations. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—If the PRC government finds that the agreements that establish the structure for operating our businesses in China do not comply with PRC regulations on foreign investment in internet and other related businesses, or if these regulations or their interpretation change in the future, we could be subject to severe penalties or be forced to relinquish our interests in those operations,” and “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us.”

Beijing Momo IT also entered into an exclusive cooperation agreement and a supplemental agreement with Chengdu Momo, Tianjin Heer and Loudi Momo on August 31, 2014, May 1, 2016 and December 1, 2017, respectively, which agreements are substantially similar to the ones entered into between Beijing Momo IT and Beijing Momo described above.

Our headquarters and our principal service development facilities are located in Beijing. We leased an aggregate of approximately 27,202 square meters of office space in Beijing, Chengdu, Tianjin, Shanghai and Guangzhou as of March 31, 2018. These leases vary in duration from two to five years.

The servers that we use to provide our services are primarily maintained at various third-party internet data centers in Beijing.

None.

The following discussion of our financial condition and results of operations is based upon, and should be read in conjunction with, our audited consolidated financial statements and the related notes included in this annual report on Form 20-F. This report contains forward-looking statements. See “Forward-Looking Information.” In evaluating our business, you should carefully consider the information provided under the caption “Item 3. Key Information—D. Risk Factors” in this annual report on Form 20-F. We caution you that our businesses and financial performance are subject to substantial risks and uncertainties.

Major Factors Affecting Our Results of Operations

User Growth. Our revenues are driven by the number of our paying users for the various services we offer to users, including live video service, value-added service, online games and other services. For 2017, we generated our revenues primarily from live video service, value-added service, mobile marketing and mobile games. The number of paying users for our live video service increased from 0.2 million in 2015 to 5.6 million in 2016 and further to 10.3 million in 2017. For value-added services, our paying users increased from 2.9 million in 2015 to 3.7 million in 2016 and 7.2 million in 2017. The number of paying users of our mobile games on the Momo platform decreased from 1.5 million in 2015 to 0.8 million in 2016 and further to 0.4 million in 2017. The number of our paying users is affected by the growth in our active user base, our ability to convert a greater portion of our users into paying users, and strategies we pursue to achieve active user growth at reasonable costs and expenses.

Our MAUs increased from 69.8 million in December 2015 to 81.1 million in December 2016 and 99.1 million in December 2017.

User Engagement. Changes in user engagement could affect our revenues and financial results. Active user engagement powered by diverse functionalities and rich contents is essential for our ability to generate revenues from the various services we offer to users, including our live video business, value-added service, among others.

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Monetization. We started monetization in the second half of 2013 by introducing mobile games and membership services to our users, and we are continuing to refine the ways to monetize our service offerings without adversely affecting user experience. In 2015, we started to offer premium membership services, in-feed marketing solutions and live video service and in the fourth quarter of 2016, we launched a virtual gift service which allows our users to purchase and send virtual gifts to other users outside of live video service, which all contributed to our revenue growth. Our live video service currently contributes to the largest share of our revenues, generating 83.6% of our net revenues in 2017. For mobile games, we started to scale back from licensed mobile game services and instead focus on self-developed games in early 2017 in order to better align the games offered on our platform with the positioning and strength of Momo as a location-based social platform. Our future revenue growth will be affected by our ability to effectively execute our monetization strategies.

Investment in Technology Infrastructure and Talent. Our technology infrastructure is critical for us to retain and attract users, customers and platform partners. We must continue to upgrade and expand our technology infrastructure to keep pace with the growth of our business, to develop new features and services for our platform and to further enhance our big data analytical capabilities.

Our employee headcount has increased significantly as our business has grown and we expect this trend to continue for the foreseeable future. The number of our employees increased from 779 as of December 31, 2015 to 924 as of December 31, 2016 and further to 1,244 as of December 31, 2017. There is strong demand in China’s internet industry for talented and experienced personnel from fast-growing, large-scale social networking platforms. We must recruit, retain and motivate talented employees while controlling our personnel-related expenses, including share-based compensation expenses.

Taxation

Cayman Islands

We are registered by way of continuation into the Cayman Islands. Under the current law of the Cayman Islands, we are not subject to income or capital gains tax in the Cayman Islands. In addition, our payment of dividends to our shareholders, if any, is not subject to withholding tax in the Cayman Islands.

British Virgin Islands

Our subsidiary incorporated in the British Virgin Islands is a tax-exempted company.

United States

Our subsidiary incorporated in the United States is subject to state income tax and federal income tax at different tax rates, depending on taxable income levels. As our U.S. subsidiary did not have any taxable income, no income tax expense was provided for in the year ended December 31, 2017.

Hong Kong

Our subsidiary incorporated in Hong Kong is subject to the uniform tax rate of 16.5%. Under the Hong Kong tax laws, it is exempted from the Hong Kong income tax on its foreign-derived income and there are no withholding taxes in Hong Kong on the remittance of dividends. No provision for Hong Kong tax has been made in our consolidated financial statements, as our Hong Kong subsidiary had not generated any assessable income in 2015, 2016 or 2017.

People’s Republic of China

Pursuant to the EIT Law, which became effective on January 1, 2008, foreign-invested enterprises and domestic companies are subject to enterprise income tax at a uniform rate of 25%. In August 2014, Beijing Momo IT was qualified as a software enterprise. As such, Beijing Momo IT will be exempt from income taxes for two years beginning in its first profitable year (i.e. 2015 and 2016) followed by a tax rate of 12.5% for the succeeding three years (i.e. from 2017 to 2019). Chengdu Momo qualified as a western China development enterprise and the income tax rate was 15% in 2014, 2015 and 2016. Chengdu Momo has completed its renewal registration with the competent tax authorities in early 2018 to continue to be qualified as a western China development enterprise in the year 2017. The other entities incorporated in the PRC were subject to an enterprise income tax at a rate of 25%.

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We have recognized income tax expense of US$0.1 million, US$5.1 million and US$66.0 million for the years ended December 31, 2015, 2016 and 2017, respectively.

Effective January 1, 2012, the PRC Ministry of Finance and the State Administration of Taxation launched a Business Tax to Value-Added Tax Transformation Pilot Program, or the VAT Pilot Program, which imposes VAT in lieu of business tax for certain “modern service industries” in certain regions and eventually expands to nation-wide in 2013. According to the implementation circulars released by the Ministry of Finance and the State Administration of Taxation on the VAT Pilot Program, the “modern service industries” include research, development and technology services, information technology services, cultural innovation services, logistics support, lease of corporeal properties, attestation and consulting services. Effective from May 1, 2016, PRC tax authorities collect VAT in lieu of business tax in all regions and industries. All of our entities were subject to VAT at rate of 6% for services provided and 17% for goods sold as of December 31, 2017. With the imposition of VAT in lieu of business tax, our revenues are subject to VAT payable on goods sold or taxable services provided by a general VAT taxpayer for a taxable period, which is the net balance of the output VAT for the period after crediting the input VAT for the period. Hence, the amount of VAT payable does not result directly from output VAT generated from goods sold or taxable services provided. In addition, according to the prevailing PRC tax regulations, the input VAT caused by purchasing goods or services can be credited against output VAT by general taxpayer when calculating VAT payable, provided that the general taxpayer obtained and verified the relevant VAT special invoices corresponding to the cost or expenditures within a defined time period. All of our entities have obtained the VAT special invoices as the deduction vouchers, and therefore, we have adopted the net presentation of VAT.

Pursuant to applicable PRC laws and regulations, arrangements and transactions among related parties may be subject to audit or challenge by the PRC tax authorities. We may be subject to adverse tax consequences and our consolidated results of operations may be adversely affected if the PRC tax authorities determine that the contractual arrangements among our PRC subsidiary, Beijing Momo and its shareholders or its subsidiaries are not on an arm’s length basis and therefore constitute favorable transfer pricing. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—Contractual arrangements we have entered into with Beijing Momo may be subject to scrutiny by the PRC tax authorities. A finding that we owe additional taxes could significantly reduce our consolidated net income and the value of your investment.”

Results of Operations

The following table sets forth a summary of our consolidated results of operations for the periods indicated, both in absolute amounts and as percentages of our total net revenues. This information should be read together with our consolidated financial statements and related notes included elsewhere in this annual report. The results of operations in any period are not necessarily indicative of the results that may be expected for any future period.

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Comparison of the Years Ended December 31, 2015, 2016 and 2017

Net revenues

We currently generate revenues primarily from live video service, value-added service, mobile marketing services, mobile games, and other services. Revenues from live video service, value-added service and other services are presented net of value-added taxes and surcharges. Mobile marketing services are presented net of agency rebates, value-added taxes and surcharges. Mobile games revenues include revenues generated from mobile games developed by third-party game developers and from self-developed mobile games. Mobile games revenues generated by third-party game developers are presented net of revenue sharing with game developers, commission fees made to third-party application stores and other payment channels, value-added taxes and surcharges. Mobile games revenues derived from self-developed games are recorded on a gross basis. Net revenues increased significantly from US$553.1 million in 2016 to US$1,318.3 million in 2017, primarily driven by the significant increase in net revenues from live video service and value-added service. Net revenues increased significantly from US$134.0 million in 2015 to US$553.1 million in 2016, primarily due to a significant increase in net revenues from live video service and mobile marketing services.

Live video service

We started to offer live video services on our Momo platform in September 2015. We generate revenues when users purchase and send in-show virtual gifts to broadcasters. We launched live video service in September 2015. Initially, the service adopted an online live concert format whereby we invited certain talented performers to put on live music shows in a professional studio environment. Such shows were broadcasted live in one to four sessions on a daily basis and at pre-announced times. In the fourth quarter of 2015, we opened more live channels in order to enable more performers to put on talent shows to entertain and interact with their audience. Until April 2016, we only offered the service to a limited number of talented performers pre-selected carefully by us. In April 2016, we opened up the service to all the users of our platform so that each one of them can become a broadcaster if they wish. Our live video service revenues increased significantly to US$376.9 million in 2016 from US$1.2 million in 2015, primarily due to the increase in the number of broadcasters and paying users for our live video service as a result of the above-mentioned changes of the service from 2015 to 2016. The number of paying users for our live video service increased from 0.2 million in 2015 to 5.6 million in 2016. Our live video service revenues further increased from US$376.9 million in 2016 to US$1,102.6 million in 2017, primarily due to the increase in paying users and the increase in the average revenues per paying user. The number of paying users for our live video service increased from 5.6 million in 2016 to 10.3 million in 2017.

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Value-added service

Value-added service comprises membership subscription and virtual gift service. Momo users can become members by paying monthly, quarterly, semi-annual or annual membership fees. Momo members are entitled to additional functionalities and privileges on our mobile application. We offer four basic membership subscription packages and four premium membership subscription packages. We started to offer virtual gift service on our platform in the fourth quarter of 2016 to enhance users’ interaction and social networking with each other. We start to report revenues from membership subscription and virtual gift services together as value-added services since 2016.

2017 compared to 2016. Revenues from our value-added service increased 52.6% to US$103.1 million in 2017 from US$67.6 million in 2016, primarily due to the increase in the number of paying users as we offered virtual gift service to enrich communication experience among users and the continuous growth of its revenues in 2017. The number of paying users for our value-added service increased from 3.7 million in 2016 to 7.2 million in 2017.

2016 compared to 2015. Revenues from our value-added service increased 15.6% to US$67.6 million in 2016 from US$58.5 million in 2015, primarily attributable to the increase in the number of paying users as more users bought our premium membership package and we offered virtual gift service in the fourth quarter of 2016. The number of paying users for our value-added service increased from 2.9 million in 2015 to 3.7 million in 2016.

Mobile marketing services

Our mobile marketing services currently include in-feed marketing solutions powered by a proprietary self-serve advertising system, brand-oriented display ads, and advertising services provided through third-party partnerships.

2017 compared to 2016. Mobile marketing services revenues increased 14.8% to US$76.2 million in 2017 from US$66.3 million in 2016, primarily due to an increase in revenues from our brand-oriented display ads as a result of better sell-through of our existing advertisement inventories as we continue to provide new ad format and marketing solutions to our clients.

2016 compared to 2015. Mobile marketing services revenues increased 70.6% to US$66.3 million in 2016 from US$38.9 million in 2015, primarily due to an increase in revenue of US$29.2 million from our in-feed advertising services as a result of an increase in effective cost per mille (eCPM) of our in-feed advertising service as well as better sell-through of our existing advertisement inventories, partially offset by a decrease in revenue of US$1.7 million from our brand-oriented display ads.

Mobile games

As of December 31, 2017, we had three types of mobile game services, namely non-exclusive licensed mobile game services, exclusive licensed mobile game services and self-developed mobile game services. For non-exclusive licensed mobile game services, we offer our mobile game platform for mobile games developed by third-party game developers, and we share user payments with such game developers. Game developers may offer their games on other platforms in addition to ours. For exclusive licensed mobile game services, we offer our mobile game platform for mobile games developed by third-party game developers, and our platform is the only one through which players can access such games. In addition to licensed mobile games, we also operate self-developed mobile games on our mobile game platform. As of December 31, 2017, we operated 16 non-exclusive licensed games, six exclusive licensed games and eight self-developed games. We expect the number of games operated on our platform to fluctuate quarter by quarter. Our revenues from mobile games depend on the number of paying users, which ultimately is determined by our ability to select and offer engaging games tailored to our platform and our user profiles.

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2017 compared to 2016. Our mobile games revenues slightly increased 0.5% to US$35.6 million in 2017 from US$35.5 million in 2016, primarily due to an increase in revenue from a new self-developed game which we launched in the second quarter of 2016 and for which we recognized revenue on a gross basis, partially offset by a decrease in paying users and revenue from other existing licensed games as we have recently started to scale back from licensed mobile game services and instead focus on self-developed games. The number of paying users of our mobile games on the Momo platform decreased by 50% from 0.8 million in 2016 to 0.4 million in 2017.

2016 compared to 2015. Our mobile games revenues increased 14.1% to US$35.5 million in 2016 from US$31.1 million in 2015, primarily due to an increase in revenue from a new self-developed game which we launched in the second quarter of 2016 and for which we recognized revenue on a gross basis, partially offset by a decrease in revenue from existing games. The number of paying users of our mobile games on the Momo platform decreased by 46.7% from 1.5 million in 2015 to 0.8 million in 2016.

Other services

Our other services include Duobao service, paid emoticons and gift mall sales.

2017 compared to 2016. Other services revenues decreased 89.0% to US$0.7 million in 2017 from US$6.8 million in 2016, primarily due to the winding down of Duobao and paid emoticons services in 2017.

2016 compared to 2015. Other services revenues increased 56.6% to US$6.8 million in 2016 from US$4.3 million in 2015, primarily due to our new business Duobao service.

Cost and expenses

Cost of revenues

Cost of revenues consists primarily of costs associated with the operation and maintenance of our platform, including revenue sharing, commission fees, bandwidth costs, labor costs, depreciation and other costs.

Revenue sharing primarily include payments to broadcasters and agencies for our live video service, self-developed mobile game subcontractors and virtual gift recipients. Commission fees are payments made to third-party application stores and other payment channels for distributing our live video service, value-added service, self-developed mobile games, paid emotions and our mobile marketing services. Users can make payments for such services through third-party application stores and other payment channels. These third-party application stores and other payment channels typically charge a handling fee for their services. Bandwidth costs, including internet data center and content delivery network fees, consist of fees that we pay to telecommunication carriers and other service providers for telecommunication services, hosting our servers at their internet data centers, and providing content and application delivery services. Labor costs consist of salaries and benefits, including share-based compensation expenses, for our employees involved in the operation of our platform. Depreciation mainly consists of depreciation cost on our servers, computers and other equipment. We expect our cost of revenues to increase in the future as we continue to expand our services, as well as to enhance the capability and reliability of our infrastructure to support user growth and increased activity on our platform.

The following table sets forth the components of our cost of revenues by amounts and percentages of our total cost of revenues for the periods presented:

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2017 compared to 2016. Our cost of revenues increased from US$241.5 million in 2016 to US$649.3 million in 2017, primarily due to a US$349.4 million increase in revenue sharing resulting from an increase in live video service revenue and virtual gift service revenue, a US$24.1 million increase in commission fees resulting from an increase in fees to payment channels due to a higher volume of cash collection through such channels, a US$17.7 million increase in bandwidth costs due to larger scale of live video service, short video services, social games as well as other video- and audio-based interactive functions, a US$5.7 million increase in labor costs resulting from an increase in the number of employees involved in the operation of our platform and a US$2.9 million increase in depreciation and amortization costs, which were driven by additional services and functions introduced on the Momo platform.

2016 compared to 2015. Our cost of revenues increased significantly from US$30.3 million in 2015 to US$241.5 million in 2016, primarily due to a US$172.8 million increase in revenue sharing resulting from an increase in live video service revenue, a US$14.3 million increase in commission fees resulting from an increase in fees to payment channels due to a higher volume of cash collection through such channels, a US$9.2 million increase in bandwidth costs, a US$5.7 million increase in labor costs resulting from an increase in the number of employees involved in the operation of our platform, and a US$1.3 million increase in depreciation and amortization costs, which were driven by additional services and functions introduced on the Momo platform.

Research and development expenses

Research and development expenses consist primarily of salaries and benefits, including share-based compensation expenses, for research and development personnel and rental expenses associated with research and development activities. Expenditures incurred during the research phase are expensed as incurred. We expect our research and development expenses to increase as we expand our research and development team to develop new features and services for our platform and to further enhance our big data analytical capabilities.

2017 compared to 2016. Our research and development expenses increased by 64.0% from US$31.4 million in 2016 to US$51.5 million in 2017. This increase was primarily due to a US$18.3 million increase in salaries and benefits for research and development personnel. Our research and development headcount increased from 367 as of December 31, 2016 to 552 as of December 31, 2017.

2016 compared to 2015. Our research and development expenses increased by 35.0% from US$23.3 million in 2015 to US$31.4 million in 2016. This increase was primarily due to a US$7.4 million increase in salaries and benefits for research and development personnel. Our research and development headcount increased from 319 as of December 31, 2015 to 367 as of December 31, 2016.

Sales and marketing expenses

Sales and marketing expenses consist primarily of general marketing and promotional expenses, as well as salaries and benefits, including share-based compensation expenses, for our sales and marketing personnel. We expect our sales and marketing expenses to increase as we plan to enhance our brand awareness, attract new users and promote our new services.

2017 compared to 2016. Our sales and marketing expenses increased by 123.8% from US$97.2 million in 2016 to US$217.4 million in 2017, primarily due to a US$98.2 million increased expenses as we stepped up marketing efforts to enhance our brand awareness, attract users and promote our live video service and a US$13.2 million increase in salaries and other benefits for our sales and marketing personnel.

2016 compared to 2015. Our sales and marketing expenses increased by 84.6% from US$52.6 million in 2015 to US$97.2 million in 2016, primarily due to a US$27.4 million increase in marketing and promotional expenses to enhance our brand awareness, attract new users and promote our live video service, and a US$14.3 million increase in salaries and other benefits for our sales and marketing personnel. Our sales and marketing headcount increased from 274 as of December 31, 2015 to 337 as of December 31, 2016.

General and administrative expenses

General and administrative expenses consist primarily of salaries and other benefits, including share-based compensation expense, professional fees and rental expenses. We expect our general and administrative expenses to increase as our business grows.

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2017 compared to 2016. Our general and administrative expenses increased from US$39.0 million in 2016 to US$62.6 million in 2017. This increase was primarily due to the increase in personnel related salaries and other benefits, including share-based compensation expenses, as a result of our rapidly expanding talent pool and the increase of auditing and other professional service expenses.

2016 compared to 2015. Our general and administrative expenses increased from US$22.9 million in 2015 to US$39.0 million in 2016. This increase was primarily due to a US$13.1 million increase in salaries and other benefits, including share-based compensation expenses, for our general and administrative personnel, and a US$3.4 million increase in expense of writing off prepayments to game developers due to termination of certain game licensing contracts or inability to recover certain prepaid costs as a result of poor performance of games.

Net income

2017 compared to 2016. Primarily as a result of the foregoing, our net income increased from US$145.3 million in 2016 to US$318.0 million in 2017.

2016 compared to 2015. Primarily as a result of the foregoing, our net income increased from US$13.7 million in 2015 to US$145.3 million in 2016.

Inflation

Since our inception, inflation in China has not materially impacted our results of operations. According to the National Bureau of Statistics of China, the year-over-year percent changes in the consumer price index for December 2015, 2016 and 2017 were increases of 1.6%, 2.1% and 1.8%, respectively. Although we have not in the past been materially affected by inflation since our inception, we can provide no assurance that we will not be affected in the future by higher rates of inflation in China.

Critical Accounting Policies

We prepare our financial statements in conformity with U.S. GAAP, which requires us to make estimates and assumptions that affect our reporting of, among other things, assets and liabilities, revenues and expenses and contingent assets and liabilities. We continually evaluate these estimates and assumptions based on the most recently available information, our own historical experience and other factors that we believe to be relevant under the circumstances. Since our financial reporting process inherently relies on the use of estimates and assumptions, our actual results could differ from what we expect. This is especially true with some accounting policies that require higher degrees of judgment than others in their application. We consider the policies discussed below to be critical to an understanding of our audited consolidated financial statements because they involve the greatest reliance on our management’s judgment.

Revenue Recognition

We recognize revenues when persuasive evidence of an arrangement exists, delivery has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. We principally derive our revenues from live video service, value-added service, mobile marketing services, mobile games, and other services.

Live Video Service. We provide live video service whereby users can enjoy live performances and interact with the broadcasters for free, and have the option of purchasing in-show virtual gifts. Broadcasters can either host the performance on their own or join a broadcaster agency. Users purchase virtual gifts from us and present them to broadcasters to show their support. We determine the prices of virtual gifts and generate revenue from the sales of virtual gifts upon purchase. Under the arrangements with broadcasters or broadcaster agency, we share with them a portion of the revenues derived from the sales of virtual gifts. Revenues derived from the sale of virtual gifts are recorded on a gross basis as we have determined that they act as the principal to fulfill all obligations related to the live video services. The portion paid to broadcasters and/or broadcaster agencies is recognized as cost of revenues.

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Value-added Service. Value-added service comprises membership subscription and virtual gift service. Membership subscription is a service package that enables members to enjoy additional functions and privileges. The contract periods for the membership subscription are one month, one quarter, six months and one year. All membership subscription is non-refundable. We collect membership subscription in advance and record it as deferred revenue. Revenues are recognized ratably over the contract period for the membership subscription services. Virtual gift service was launched on the Momo platform in 2016 to enhance users’ interaction and social networking with each other. Users simultaneously purchase and send the virtual gifts to other users while we share with them a portion of the revenues derived from the sales of virtual gifts. Revenues derived from the sale of virtual gifts are recorded on a gross basis as we have determined that we act as the principal to fulfill all obligations related to the virtual gift service. The portion paid to gift recipients is recognized as cost of revenues.

Mobile Marketing. We provide advertising and marketing solutions to customers, enabling them to promote their brands and to conduct effective marketing activities through our mobile application.

(i) Display-based online mobile marketing services

For display-based online mobile marketing services such as banners and location-based advertising on mobile applications, we recognize revenue ratably over the period that the advertising service is provided commencing on the date the customer’s advertisement is displayed, or on the number of times that the advertisement has been displayed for advertising arrangements based on cost per thousand impressions.

(ii) Performance-based mobile marketing services

We enable advertising customers to place links on our mobile platform on a pay-for-effectiveness basis, which is referred as cost for performance model. We charge fees directly from advertising customers based on the effectiveness of advertising links, which is measured by active clicks. We estimate revenue based on our internal data, which are confirmed by the respective customers, or based on a fixed unit price.

Our revenue transactions are based on standard business terms and conditions, which are recognized net of agency rebates, if applicable.

Mobile Games. We publish licensed mobile games developed by third-party game developers and our self-developed mobile games to game players through our mobile application.

Licensed mobile games services

We generate revenue by offering mobile games services developed by third-party game developers. All of the licensed games can be accessed and played by game players directly through our mobile game platform. We primarily view the game developers to be our customers and consider our responsibility under our agreements with the game developers to be promotion of the game developers’ games. We generally collect payments from game players in connection with the sale of in-game virtual currencies and remit certain agreed-upon percentages of the proceeds to the game developers and records revenues net of remittances. Purchases of in-game currencies are not refundable after they have been sold unless there are unused in-game currencies at the time a game is discontinued. Typically, a game will only be discontinued when the monthly revenues generated by a game become consistently insignificant. We do not currently expect to pay any material cash refunds to game players or game developers in connection with a discontinued game.

Licensed mobile game revenue recognition involves certain management judgments, such as determining who is the principal in providing game services to our players, estimating the consumption date of the in-game currencies and the period of player relationship. We concluded that licensed game developers are the principals based on the fact that the games are primarily hosted by the game developers and such developers are responsible for the maintenance of the games and determination of the prices of the virtual items used in the games. Our primary responsibility is to promote the games of the third-party developers, provide virtual currency exchange services, and offer customer support to resolve registration, log-in, virtual currency exchange and other related issues. Therefore, we report such revenues net of predetermined revenue-sharing with the game developers and commission fees made to third-party application stores and other payment channels.

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(i) Non-exclusive licensed mobile games services

We enter into non-exclusive agreements with game developers and offer our mobile game platform for the mobile games developed by such game developers. We have determined that we have no additional performance obligation to the developers or game players upon players’ completion of the corresponding in-game purchase. Therefore, revenues from the sale of in-game currencies are primarily recorded net of remittances to game developers and commission fees made to third-party application stores and other payment channels and deferred until the estimated consumption date by individual games (i.e., the estimated date in-game currencies are consumed within the game), which is typically within a short period of time ranging from zero to three days after purchase of the in-game currencies. As of December 31, 2017, we operated 16 games under non-exclusive arrangements.

We estimate the in-game virtual currency consumption date based on the consumption behavior of game players for each reporting period. The amount and timing of our game revenues could be materially different for any period if management made different judgments or utilized different estimates. Any adjustments arising from changes in the estimate would be applied prospectively on the basis that such changes are caused by new information indicating a change in the user behavior pattern.

(ii) Exclusive licensed mobile games services

We enter into exclusive agreements with game developers and provide our mobile game platform for the mobile games developed by such game developers. Under the exclusive agreements, players can access the games only through our platform. We have determined that we are obligated to provide mobile games services to game players who purchased virtual items to gain an enhanced game-playing experience over an average period of player relationship. We believe that our performance for, and obligation to, the game developers correspond to the game developers’ services to the players. We do not have access to the data on the consumption details and the types of virtual items purchased by game players. Therefore, we cannot estimate the economic life of the virtual items. However, we maintain historical data of a particular player when the player makes a purchase and logs into the relevant games. We have adopted a policy to recognize revenues net of remittances to game developers and commission fees made to third-party application stores and other payment channels over the estimated period of player relationship on a game-by-game basis.

We estimate the period of player relationship based on an assessment of our historical data, user behavioral patterns as well as industry research data. The period of player relationship is estimated based on data collected from those players who have purchased in-game currencies. We estimate the life of the player relationship to be the average period from the first purchase of in-game currencies to the date the player ceases to play the game.

To estimate the last login date the player plays the game, we selected all paying players that logged into the game during a particular period and continue to track these players’ log-on behaviors over a period to determine if each user is “active” or “inactive,” which is determined based on a review of the period of inactivity or idle period from the user’s last log-in. We observe the behaviors of these players to see whether they subsequently return to a game based on different inactive periods (e.g. not logging in) of one month. The percentage of players calculated that do not log back in is estimated to be the probability that players will not return to the game after a certain period of inactivity.

We consider a paying player to be inactive once he or she has reached a period of inactivity for which it is probable (defined as at least 80%) that a player will not return to a specific game. We believe that using an 80% threshold for the likelihood that a player will not return to a game is a reasonable estimate. We have consistently applied this threshold to our analysis.

If a new game is launched and only a limited period of paying player data is available, then we consider other qualitative factors, such as the playing patterns for paying players for other games with similar characteristics in the market. As of December 31, 2017, we operated six games under exclusive arrangements and the estimated period of the player relationship ranged from 20 days to 101 days.

Future usage patterns may differ from historical usage patterns and therefore the estimated period of player relationship with us may change in the future. The consideration of player relationship with each game is based on our best estimate that takes into account all known and relevant information at the time of assessment. We assess the estimated period of player relationships on a quarterly basis. Any adjustments arising from changes in the estimated period of player relationships are applied prospectively as such change results from new information indicating a change in the game player’s behavioral patterns.

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Self-developed mobile games

In February 2015, we launched the first self-developed game on our platform and started to generate revenues by in-game sales of virtual item. We have determined that we have an implied obligation to the players who purchased the virtual items to gain an enhanced game-playing experience over the average playing period of the paying players, and accordingly, we recognize the revenues ratably over the estimated period of player relationship starting from the point in time when the players purchase the virtual items and when all other revenue recognition criteria are met. The estimated period of player relationship of our eight self-developed games ranged from 56 to 79 days for the year ended December 31, 2017. We recognize revenue derived from our self-developed mobile games on a gross basis as we act as a principal to fulfill all obligations related to the mobile game operation. Commission fees paid to third-party application stores and other payment channels are recorded as cost of revenues.

Other Services. Other services primarily include Duobao service and paid emoticons.

Consolidation of Affiliated Entities

PRC regulations currently limit direct foreign ownership of business entities providing value-added telecommunications services, advertising services and internet services in the PRC where certain licenses are required for the provision of such services. To comply with these PRC regulations, we conduct a substantial majority of our business through Beijing Momo and its subsidiaries.

Beijing Momo IT, our wholly-owned PRC subsidiary, holds the power to direct the activities of Beijing Momo and its subsidiaries that most significantly affect our economic performance and bears the economic risks and receives the economic benefits of Beijing Momo and its subsidiaries through a series of contractual agreements with Beijing Momo and/or their nominee shareholders, including:

Based on the advice of Han Kun Law Offices, our PRC legal counsel, we believe above contractual agreements are currently legally enforceable under PRC law and regulations.

More specifically, through these contractual agreements, we believe that the nominee shareholders of Beijing Momo do not have the direct or indirect ability to make decisions regarding the activities of Beijing Momo that could have a significant impact on the economic performance of Beijing Momo because all of the voting rights of Beijing Momo’s nominee shareholders have been contractually transferred to Beijing Momo. Therefore, we have effective control over Beijing Momo. In addition, we believe that our ability to exercise effective control, together with the exclusive cooperation agreements, as supplemented, exclusive call option agreement and equity interest pledge agreement, give us the rights to receive substantially all of the economic benefits from Beijing Momo. Hence, we believe that the nominee shareholders of Beijing Momo do not have the rights to receive the expected residual returns of Beijing Momo, as such rights have been transferred to Beijing Momo. We evaluated the rights we obtained through entering into these contractual agreements and concluded we have the power to direct the activities that most significantly affect Beijing Momo’s economic performance and also have the rights to receive the economic benefits of Beijing Momo that could be significant to Beijing Momo.

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Accordingly, we are the primary beneficiary of Beijing Momo and have consolidated the financial results of Beijing Momo and its subsidiaries in our consolidated financial statements.

The shareholders of Beijing Momo are also our shareholders, directors or officers and therefore have no current interest in acting contrary to the contractual arrangements. However, uncertainties in the PRC legal system could limit our ability to enforce these contractual arrangements and if the shareholders of Beijing Momo were to reduce their shareholdings in our company, their interests may diverge from our interests, which may increase the risk that they would act contrary to the contractual arrangements, such as causing Beijing Momo to not pay service fees under the contractual arrangements when required to do so. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—We rely on contractual arrangements with Beijing Momo and its shareholders for our operations in China, which may not be as effective in providing operational control as direct ownership.”

Income Taxes

In preparing our consolidated financial statements, we must estimate our income taxes in each of the jurisdictions in which we operate. We estimate our actual tax exposure and assess temporary differences resulting from different treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which we include in our consolidated balance sheet. We must then assess the likelihood that we will recover our deferred tax assets from future taxable income. If we believe that recovery is not likely, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance, we must include an expense within the tax provision in our consolidated statement of operations. The components of the deferred tax assets and liabilities are individually classified as current and non-current based on their characteristics before 2016. We adopted ASU 2015-17 in the first quarter of 2017 and classified all deferred taxes assets and liabilities as noncurrent as of December 31, 2017. We did not retrospectively apply the changes to the prior years.

Management must exercise significant judgment to determine our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We base the valuation allowance on our estimates of taxable income in each jurisdiction in which we operate and the period over which our deferred tax assets will be recoverable. If actual results differ from these estimates or we adjust these estimates in future periods, we may need to establish an additional valuation allowance, which could materially impact our financial position and results of operations.

U.S. GAAP requires that an entity recognize the impact of an uncertain income tax position on the income tax return at the largest amount that is more likely than not to be sustained upon audit by the relevant tax authority. If we ultimately determine that payment of these liabilities will be unnecessary, we will reverse the liability and recognize a tax benefit during that period. Conversely, we record additional tax charges in a period in which we determine that a recorded tax liability is less than the expected ultimate assessment. We did not recognize any significant unrecognized tax benefits during the periods presented in this annual report.

Uncertainties exist with respect to the application of the New EIT Law to our operations, specifically with respect to our tax residency status. The New EIT Law specifies that legal entities organized outside of the PRC will be considered residents for PRC income tax purposes if their “de facto management bodies” are located within the PRC. The New EIT Law’s implementation rules define the term “de facto management bodies” as “establishments that carry out substantial and overall management and control over the manufacturing and business operations, personnel, accounting, properties, etc. of an enterprise.”

Because of the uncertainties resulted from limited PRC tax guidance on the issue, it is uncertain whether our legal entities organized outside of the PRC constitute residents under the New EIT Law. If one or more of our legal entities organized outside of the PRC were characterized as PRC tax residents, the impact would adversely affect our results of operations. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China.”

The Useful Lives and Impairment of Property and Equipment

Property and equipment are stated at historical cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, generally from three to five years. Judgment is required to determine the estimated useful lives of assets, especially for computer equipment, including determining how long existing equipment can function and when new technologies will be introduced at cost-effective price points to replace existing equipment. Changes in these estimates and assumptions could materially impact our financial position and results of operations.

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We review our long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may no longer be recoverable. When these events occur, we measure impairment by comparing the carrying value of the long-lived assets to the estimated undiscounted future cash flows expected to result from the use of the assets and their eventual disposition. If the sum of the expected undiscounted cash flow is less than the carrying amount of the assets, we would recognize an impairment loss based on the fair value of the assets.

Share-based Compensation

All share-based awards to employees and management, including share options, restricted shares and restricted share units, are measured at the grant date based on the fair value of the awards. Share-based compensation, net of forfeitures, is recognized as an expense on a straight-line basis over the requisite service period, which is the vesting period.

Share awards issued to non-employees are measured at fair value at the earlier of the commitment date or the date the services are completed and recognized over the period the services are provided

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The following table sets forth certain information regarding the share options granted under our 2012 Plan and 2014 Plan to our employees, management and non-employees at different dates in 2015, 2016 and 2017.

We estimated the fair value of share options on the date of grant using the Black-Sholes pricing model after we completed our initial public offering. The fair value of each option grant is estimated on the date of grant with the following key assumptions:

The following table sets forth certain information regarding the restricted share units granted under our 2014 Plan to certain directors.

Recent Accounting Pronouncements

A list of recent accounting pronouncements that are relevant to us is included in note 2 to our consolidated financial statements, which are included in this annual report.

As of December 31, 2017, we have financed our operations primarily through the issuance of preferred shares in private placements and net cash provided by operating activities. As of December 31, 2015, 2016 and 2017, we had US$169.5 million, US$257.6 million and US$685.8 million, respectively, in cash and cash equivalents. Our cash and cash equivalents primarily consist of cash on hand and highly liquid investments, which are unrestricted from withdrawal or use, or which have original maturities of three months or less when purchased. We believe that our current cash and cash equivalents and our anticipated cash flows from operations will be sufficient to meet our anticipated working capital requirements and capital expenditures for the next 12 months. We may, however, need additional capital in the future to fund our continued operations.

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In the future, we may rely significantly on dividends and other distributions paid by our PRC subsidiary for our cash and financing requirements. There may be restrictions on the dividends and other distributions by our PRC subsidiary. The PRC tax authorities may require us to adjust our taxable income under the contractual arrangements that our PRC subsidiary currently has in place with our consolidated affiliated entity in a way that could materially and adversely affect the ability of our PRC subsidiary to pay dividends and make other distributions to us. In addition, under PRC laws and regulations, our PRC subsidiary may pay dividends only out of its accumulated profits as determined in accordance with PRC accounting standards and regulations. Our PRC subsidiary is required to set aside at least 10% of its accumulated after-tax profits each year, if any, to fund a statutory reserve fund, until the aggregate amount of such fund reaches 50% of its respective registered capital. At its discretion, our PRC subsidiary may allocate a portion of its after-tax profits based on PRC accounting standards to staff welfare and bonus funds. The reserve fund and the staff welfare and bonus funds cannot be distributed as cash dividends. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—We may rely on dividends paid by our PRC subsidiary to fund cash and financing requirements. Any limitation on the ability of our PRC subsidiary to pay dividends to us could have a material adverse effect on our ability to conduct our business and to pay dividends to holders of the ADSs and our ordinary shares.” Furthermore, our investments made as registered capital and additional paid-in capital of our PRC subsidiary, consolidated affiliated entity and its subsidiaries are also subject to restrictions on their distribution and transfer according to PRC laws and regulations.

As a result, our PRC subsidiary, consolidated affiliated entity and its subsidiaries in China are restricted in their ability to transfer their net assets to us in the form of cash dividends, loans or advances. As of December 31, 2017, the amount of the restricted net assets, which represents registered capital and additional paid-in capital cumulative appropriations made to statutory reserves, was US$136.4 million. As of December 31, 2017, we held cash and cash equivalents of US$53.2 million in aggregate outside of the PRC and US$632.6 million in aggregate in the PRC, of which US$632.6 million was denominated in RMB and US$14,016 was in U.S. dollars. Of such cash and cash equivalents held in the PRC, our PRC subsidiary held cash and cash equivalents in the amount of US$14,007 and RMB3,705.1 million (US$569.5 million), and our consolidated affiliated entity and its subsidiaries held cash and cash equivalents in the amount of US$9 and RMB410.6 million (US$63.1 million).

As an offshore holding company, we are permitted under PRC laws and regulations to provide funding from the proceeds of our offshore fund raising activities to our PRC subsidiary only through loans or capital contributions, and to our consolidated affiliated entity and its subsidiaries only through loans, in each case subject to the satisfaction of the applicable government registration and approval requirements. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—PRC regulation of loans to, and direct investment in, PRC entities by offshore holding companies and governmental control of currency conversion may restrict or prevent us from using offshore funds to make loans to our PRC subsidiary and consolidated affiliated entity and its subsidiaries, or to make additional capital contributions to our PRC subsidiary.” As a result, there is uncertainty with respect to our ability to provide prompt financial support to our PRC subsidiary and consolidated affiliated entity when needed. Notwithstanding the foregoing, our PRC subsidiary may use its own retained earnings (rather than RMB converted from foreign currency denominated capital) to provide financial support to our consolidated affiliated entity either through entrustment loans from our PRC subsidiary to our consolidated affiliated entity or direct loans to such consolidated affiliated entity’s nominee shareholders, which would be contributed to the consolidated variable entity as capital injections. Such direct loans to the nominee shareholders would be eliminated in our consolidated financial statements against the consolidated affiliated entity’s share capital.

Our full-time employees in the PRC participate in a government-mandated contribution plan pursuant to which certain pension benefits, medical care, unemployment insurance, employee housing fund and other welfare benefits are provided to such employees. We accrue for these benefits based on certain percentages of the employees’ salaries. The total provisions for such employee benefits were US$6.5 million, US$9.1 million and US$14.1 million in 2015, 2016 and 2017, respectively. We expect our contribution towards such employee benefits to increase in the future as we continue to expand our workforce and as salary levels of our employees continue to increase.

The following table sets forth a summary of our cash flows for the periods indicated:

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Anticipated Use of Cash

We intend to continue to invest in our research and development capabilities to grow our user base and enhance user experience. We intend to continue to market our services, promote our brand, strengthen our customer service capabilities and enhance monetization. In order to support our overall business expansion, we also expect to continue to make investments in our corporate facilities and information technology infrastructure. We may pursue strategic alliances and acquisitions that complement our social networking platform. We plan to fund these expenditures with cash and cash equivalents that we have.

Operating Activities

Net cash provided by operating activities amounted to US$427.6 million in 2017, which was primarily attributable to a net income of US$318.0 million, adjusted for non-cash items of US$60.9 million and an increase of US$48.7 million in working capital. The non-cash items primarily included US$49.7 million in share-based compensation expenses, US$11.7 million in depreciation on property and equipment and US$4.4 million in impairment loss on long-term investments, partially offset by US$5.9 million income from equity method investment. The increase in working capital was primarily attributable to an increase in accrued expenses and other current liabilities of US$43.3 million, an increase in accounts payable of US$25.8 million, an increase in income tax payable of US$22.7 million and an increase in deferred revenue of US$20.4 million, partially offset by an increase in prepaid expense and other current assets of US45.8 million. The increase in accrued expenses and other current liabilities was mainly attributable to (i) an increase in payroll and welfare payable due to increased headcount and increased salaries and bonus, (ii) an increase in the balance of users’ virtual accounts, and (iii) and increase in marketing promotional fees payable. The increase in accounts payable was mainly attributable to (i) an increase in revenue-sharing payable to live broadcasters, and (ii) an increase in bandwidth cost payable to IT service suppliers. The increase in income tax payable was mainly because we generated higher profit in 2017 and the tax holiday of one of our major profit generating entities changed from 100% exemption to 50% exemption of income tax in 2017. The increase in deferred revenue was mainly attributable to the increase in live video service revenues paid in advance. The increase in prepaid expenses and other current assets was mainly attributable to (i) an increase in customer payment to our account through third-party channels and cash deposited at the third-party payment channels by us for the broadcasters to withdraw their revenue sharing, (ii) an increase in advance payment made to suppliers for advertising fees and live video broadcasting service fees and (iii) an increase in rental fees we prepaid for our expanding office space.

Net cash provided by operating activities amounted to US$218.3 million in 2016, which was primarily attributable to a net income of US$145.3 million, adjusted for non-cash items of US$42.4 million and an increase of US$30.6 million in working capital. The non-cash items primarily included US$31.7 million in share-based compensation expenses, US$8.4 million in depreciation on property and equipment and US$5.8 million in impairment loss on long-term investments, partially offset by US$3.5 million of investing income. The increase in working capital was primarily attributable to an increase in accounts payable of US$32.0 million, an increase in accrued expenses and other current liabilities of US$15.5 million and an increase in deferred revenue of US$15.5 million, which was partially offset by an increase in accounts receivable of US$23.0 million and an increase in prepaid expenses and other current assets of US$15.6 million. The increase in accounts payable was mainly attributable to the increase in revenue-sharing payable to live broadcasters and game developers. The increase in accrued expenses and other current liabilities was mainly attributable to (i) an increase in payroll and welfare payable due to increased headcount and increased salaries, and (ii) an increase in marketing promotional fees payable, partially offset by a decrease in payable to employees for exercise of stock options. The increase in deferred revenue was mainly attributable to the increase of number of paying users for our live video service, the increase of our members and membership subscription fees that our members paid in advance, as well as the increase in mobile marketing revenues and mobile games revenues paid in advance. The increase in accounts receivable was mainly attributable to an increase in revenues collected through third-party application store and other payment channels. The increase in prepaid expenses and other current assets was mainly attributable to (i) an increase in advance payment made to advertisement suppliers, (ii) an increase in customer advance payment at a third-party payment channel, which is cash deposited at the third-party payment channel by us for the broadcasters to withdraw their revenue sharing, (iii) an increase in game promotions fees paid on behalf of game developers and (iv) an increase in commission fees we paid to third-party application stores and other payment channels for distributing our mobile application and services.

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Net cash provided by operating activities amounted to US$57.3 million in 2015, which was primarily attributable to a net income of US$13.7 million, adjusted for non-cash items of US$23.7 million and an increase of US$19.9 million in working capital. The non-cash items primarily included US$17.4 million in share-based compensation expenses and US$6.6 million in depreciation on property and equipment. The increase in working capital was primarily attributable to an increase in accrued expenses and other current liabilities of US$20.7 million, an increase in deferred revenue of US$13.0 million, an increase in accounts payable of US$5.3 million and an increase in other non-current liabilities of US$1.8 million, which was partially offset by an increase in prepaid expenses and other current assets of US$11.2 million, an increase in accounts receivable of US$8.5 million and an increase in amount due from related parties of US$1.2 million. The increase in accrued expenses and other current liabilities was mainly attributable to (i) an increase in payable to employees for exercise of stock options, (ii) an increase in payroll and welfare payable due to increased headcount and increased salaries, and (iii) an increase in marketing promotional fees payable. The increase in deferred revenue was mainly attributable to the increase of our members and membership subscription fees that our members paid in advance, as well as the increase in mobile games revenues and mobile marketing revenues paid in advance. The increase in accounts payable was mainly attributable to the increase in revenue-sharing payable to game developers. The increase in prepaid expenses and other current assets was mainly attributable to (i) an increase in interest receivable, (ii) an increase in advance payment made to third-party game developers, (iii) an increase in VAT resulting primarily from the purchase of property and equipment as well as advertising activities; and (iv) an increase in commission fees we paid to third-party application stores and other payment channels for distributing our mobile application and services.

Investing Activities

Net cash used in investing activities amounted to US$27.3 million in 2017, which was primarily attributable to purchase of term deposits and short term investments, purchase of servers, computers and other equipment, payments for leasehold improvements, payment and prepayment of long-term investments, and payments for acquired intangible assets, partially offset by cash received on maturity of term deposits and sales of short term investment.

Net cash used in investing activities amounted to US$118.3 million in 2016, which was primarily attributable to purchase of term deposits, payment and prepayment of long-term investments, and purchase of servers, computers and other equipment, partially offset by cash received on maturity of term deposits.

Net cash used in investing activities amounted to US$333.4 million in 2015, which was primarily attributable to purchase of term deposits, purchase of servers, computers and other equipment, and payment and prepayment of long-term equity investments.

Financing Activities

Net cash provided by financing activities amounted to US$0.4 million in 2017, which was primarily attributable to cash received for exercise of options awarded under our share incentive plans, which was partially offset by a deferred payment on the purchase of fixed assets.

Net cash provided by financing activities amounted to US$14,000 in 2016, which was primarily attributable to cash received for exercise of options awarded under our share incentive plans, which was partially offset by a deferred payment on the purchase of fixed assets.

Net cash used in financing activities amounted to US$2.2 million in 2015, which was primarily attributable to payment of our costs incurred in connection with our initial public offering.

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Holding Company Structure

Our company is a holding company with no material operations of its own. We conduct our operations primarily through our wholly-owned subsidiaries and our consolidated affiliated entity and its subsidiaries in China. As a result, our ability to pay dividends depends upon dividends paid by our wholly-owned subsidiaries. If our wholly-owned subsidiaries or any newly formed subsidiaries incur debt on their own behalf in the future, the instruments governing their debt may restrict their ability to pay dividends to us. In addition, our wholly-owned subsidiaries are permitted to pay dividends to us only out of their retained earnings, if any, as determined in accordance with PRC accounting standards and regulations. Under PRC law, each of our wholly-owned PRC subsidiaries and our consolidated affiliated entity is required to set aside at least 10% of its after-tax profits each year, if any, to fund a statutory reserve until such reserve reaches 50% of its registered capital. Although the statutory reserves can be used, among other ways, to increase the registered capital and eliminate future losses in excess of retained earnings of the respective companies, the reserve funds are not distributable as cash dividends except in the event of liquidation. As a result of these PRC laws and regulations, the capital and statutory reserves restricted which represented the amount of net assets of our relevant subsidiaries in PRC not available for distribution were US$136.4 million as of December 31, 2017.

Capital Expenditures

Our capital expenditures amounted to US$13.5 million, US$7.3 million and US$32.3 million in 2015, 2016 and 2017, respectively. In the past, our capital expenditures were principally incurred to purchase servers, computers and other office equipment, and to pay for leasehold improvements for our offices. As our business expands, we may purchase new servers, computers and other equipment in the future, as well as make leasehold improvements.

We focus our research and development efforts on the continual improvement and enhancement of our platform’s features and services, as well as the design and development of games that are suitable for publishing on our own platform. We have a large team of engineers and developers, which accounted for approximately 44% of our employees as of December 31, 2017. Most of our engineers and developers are based in our headquarters in Beijing.

For the three years ended December 31, 2015, 2016 and 2017, our research and development expenditures, including share-based compensation expenses for research and development staff, were US$23.3 million, US$31.4 million and US$51.5 million, respectively. For the year ended December 31, 2017, our research and development expenditures represented 3.9% of our total revenues. Our research and development expenses primarily consist of salaries and benefits, including share-based compensation expenses, for research and development personnel and rental expenses. Expenditures incurred during the research phase are expensed as incurred. We expect our research and development expenses to increase as we expand our research and development team to develop new features and services for our platform and further enhance our big data analytical capabilities.

Other than as disclosed elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events for the year ended December 31, 2017 that are reasonably likely to have a material and adverse effect on our net revenues, income, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future results of operations or financial conditions.

We have not entered into any financial guarantees or other commitments to guarantee the payment obligations of any third parties. We have not entered into any derivative contracts that are indexed to our shares and classified as shareholder’s equity or that are not reflected in our consolidated financial statements. Furthermore, we do not have any retained or contingent interest in assets transferred to an unconsolidated entity that serves as credit, liquidity or market risk support to such entity for such assets. We do not have any obligation, including a contingent obligation, arising out of a variable interest in any unconsolidated entity that we hold and material to us, where such entity provides financing, liquidity, market risk or credit risk support to us or engages in leasing, hedging or research and development services with us.

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We lease certain of our facilities and offices under non-cancellable operating lease agreements. The rental expenses were US$3.7 million, US$4.7 million and US$8.7 million for the years ended December 31, 2015, 2016 and 2017, respectively.

As of December 31, 2017, future minimum commitments under non-cancelable agreements were as follows:

As of December 31, 2017, we are obligated to pay US$4.6 million for the subscription of partnership interest in a long-term investee.

Other than the operating lease and investment commitment shown above, we did not have any significant other commitments, long-term obligations, or guarantees as of December 31, 2017.

See “Forward-Looking Information.”

The following table sets forth information regarding our executive officers and directors as of the date of this annual report.

Mr. Yan Tang is our co-founder and has served as our director and chief executive officer since our inception in July 2011. Mr. Tang was appointed to be the chairman of our board of directors in November 2014. Prior to founding our company, from 2003 to 2011, Mr. Tang worked at NetEase, Inc. (NASDAQ: NTES), or NetEase, initially as editor and later editor-in-chief. Mr. Tang was named by Fortune Magazine as one of its “40 Under 40,” a list of the most powerful, influential and important business elites under the age of 40, in October 2014. Mr. Tang received his bachelor of science degree from Chengdu University of Technology in China in 2000.

Mr. Yong Li is our co-founder and has been our director since April 2012 and our independent director since December 2015. Mr. Li founded Fenbi Inc. (Cayman), a provider of online education services, in May 2011, in which he now serves as a board director and chief executive officer. In April 2012, he founded Beijing Jingguanyu Technology Co., Ltd., a software service company, and has been its chief executive officer since then. From May 2005 to May 2010, Mr. Li was the editor-in-chief and vice president at NetEase, and then the vice president at NetEase and president of NetEase career portal business unit. Between February 2001 and May 2005, Mr. Li served as an executive editor, executive editor-in-chief and then general manager of Global Entrepreneur, a Chinese magazine. Mr. Li is also a director of two privately held companies. Mr. Li received his MBA degree from Peking University in 2004 and bachelor’s degree in law from Renmin University in China in 1996.

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Mr. David Ying Zhang has been our director since April 2012. Mr. Zhang is a founding managing partner of Matrix Partners China, where he oversees all of the venture capital investment firm’s operations. In 2002, Mr. Zhang established and has since expanded WI Harper Group’s Beijing operations and co-managed its China portfolios. Prior to joining WI Harper Group, Mr. Zhang worked at Salomon Smith Barney, where he was responsible for analyzing, structuring and marketing companies in the internet, software and semiconductor sectors. Before then, Mr. Zhang worked at ABN AMRO Capital as a senior venture associate. Mr. Zhang received master of science degree in biotechnology and business from Northwestern University in 1999 and bachelor of science degree in clinical science with minor in chemistry from California State University in 1997.

Mr. Neil Nanpeng Shen has been our director since May 2014 and our independent director since December 2015. Mr. Shen is the founding managing partner of Sequoia Capital China. Mr. Shen is a co-founder and director of Ctrip.com International, Ltd. (NASDAQ: CTRP), or Ctrip, a leading online travel services provider in China. Mr. Shen served as the chief financial officer of Ctrip from 2000 to October 2005 and as president from August 2003 to October 2005. Mr. Shen also co-founded Home Inns & Hotels Management Inc. (NASDAQ: HMIN), or Home Inns, a leading economy hotel chain in China. Prior to founding Ctrip and Home Inns, Mr. Shen had worked for more than eight years in the investment banking industry in New York and Hong Kong. Currently, Mr. Shen is a director of PPDAI Group Inc. (NYSE: PPDF) and Noah Holdings Limited (NYSE: NOAH). Mr. Shen received his master’s degree from the Yale University in 1992 and his bachelor’s degree from Shanghai Jiao Tong University in 1988.

Mr. Benson Bing Chung Tam has served as our independent director since December 2014. Mr. Tam is a chartered accountant. He is the founder and chairman of Venturous Group, a global CEO network based in Beijing. From 2002 to February 2012, Mr. Tam was a partner and head of technology investments at Fidelity Growth Partners Asia (formerly named Fidelity Asia Ventures). Prior to joining Fidelity Growth Partners Asia, Mr. Tam was a partner of Electra Partners Asia from 1998 to 2002, and was the founding director of Hellman & Friedman Asia from 1992 to 1998. Mr. Tam worked in M&A corporate finance at S.G. Warburg from 1989 to 1992. Mr. Tam is currently a director of certain privately held companies. Mr. Tam received his master’s degree in computer science from Oxford University in 1986 and his bachelor’s degree in civil engineering from Imperial College of London University in 1984.

Dr. Dave Daqing Qi has served as our independent director since December 2014. Dr. Qi is a professor of accounting and the former associate dean of the Cheung Kong Graduate School of Business. He began teaching at the Cheung Kong Graduate School of Business in 2002 and was the founding director of the Executive MBA program. Prior to that, Dr. Qi was an associate professor at the School of Accounting of the Chinese University of Hong Kong. Dr. Qi also serves as director of a number of public companies, such as Sohu.com (NASDAQ: SOHU), iKang Healthcare Group (NASDAQ: KANG), Jutal Offshore Oil Services Limited (HKEx: 3303), Yunfeng Financial Group Limited (HKEx: 0376), Sinomedia Holding Limited (HKEx: 0623) and Boison Finance Group Limited (HKEx: 0888). He received his Ph.D. degree in accounting from the Eli Broad Graduate School of management of Michigan State University in 1996, MBA degree from the University of Hawaii at Manoa in 1992 and bachelor of science and bachelor of arts degrees from Fudan University in 1985 and 1987, respectively.

Mr. Li Wang has been our chief operating officer since June 2014 and our president since April 2018. Mr. Wang joined the company as our operation director in July 2011. Prior to joining us, Mr. Wang was the managing director of Laoluo English Training School, a start-up education service business from November 2008 to May 2011. He was the general administration staff at NEC China Co., Ltd. from April 2005 to April 2007. Mr. Wang received a bachelor’s degree in management from Beijing University of Aeronautics and Astronautics in China in 2004.

Mr. Xiaoliang Lei is our co-founder and has been the president of our game operations since April 2018. Mr. Lei is responsible for game operations. Prior to co-founding our company, Mr. Lei was the product management staff then manager at NetEase, from 2008 to 2011. Mr. Lei was an editor in charge of content development and team management at 21CN Game Channel, a game information exchange platform in China from 2004 to 2008. Mr. Lei received his bachelor of science degree in software engineering from South China University of Technology in 2004.

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Mr. Jonathan Xiaosong Zhang has served as our chief financial officer since May 2014. From July 2010 to April 2014, Mr. Zhang served as the chief financial officer of iSoftStone Holdings Limited, and was the company’s independent director between February 2010 and July 2010. Prior to joining iSoftStone Holdings Limited, Mr. Zhang served as the chief financial officer of several companies, including BJB Career Education Company Limited from June 2009 to June 2010, and Vimicro International Corporation (NASDAQ: VIMC) from September 2004 to January 2007. From 2000 to 2004, Mr. Zhang worked as a manager and then a senior manager at the Beijing office of PricewaterhouseCoopers. From 1995 to 1999, Mr. Zhang was an auditor and then a senior auditor at the Los Angeles office of KPMG LLP. Mr. Zhang is also an independent director, the chairman of audit committee, and a member of the compensation committee and the nominating and corporate governance committee of Tarena International Inc. (NASDAQ: TEDU). Mr. Zhang received his master’s degree in accountancy from the University of Illinois in 1994, his master’s degree in meteorology from Saint Louis University in 1992, and his bachelor’s degree in meteorology from Peking University in 1986. Mr. Zhang is a Certified Public Accountant in the State of California.

Mr. Chunlai Wang has been our chief technology officer since August 2017. Mr. Wang served as our vice president of technology since April 2015. From June 2014 to April 2015, Mr. Wang served as our technology director. Before that, he had been in charge of our technology team since June 2013 and had been actively involved in the development of our key technological infrastructures since he joined us in February 2012. Prior to joining us, Mr. Wang served as an engineer and a senior engineer in NetEase from September 2010 to February 2012. From March 2009 to September 2010, he co-founded a business dedicated to semantic search services. Mr. Wang received his master’s degree in engineering from Peking University in July 2013 and his bachelor’s degree from Beijing Jiaotong University in June 2009.

For the fiscal year ended December 31, 2017, we paid an aggregate of approximately US$12.6 million in cash to our executive officers, and we paid an aggregate of approximately US$90,000 in cash to our non-executive directors. We have not set aside or accrued any amount to provide pension, retirement or other similar benefits to our executive officers and directors. In accordance with the PRC law, our PRC subsidiary and consolidated affiliated entity and its subsidiaries are required by law to make contributions equal to certain percentages of each employee’s salary for his or her pension insurance, medical insurance, unemployment insurance and other statutory benefits and a housing provident fund.

Share Incentive Plans

2012 Plan

In November 2012, we adopted a share incentive plan, or the 2012 Plan, which was amended and restated in October 2013. The maximum aggregate number of shares which may be issued pursuant to all awards under the 2012 Plan is 44,758,220 Class A ordinary shares. With the adoption of our 2014 Plan, we no longer issue incentive shares under the 2012 Plan.

As of March 31, 2018, options to purchase 28,776,804 Class A ordinary shares (excluding those that have been forfeited) had been granted under the 2012 Plan, of which options to purchase an aggregate of 9,000,326 Class A ordinary shares remained outstanding. The following paragraphs summarize the principal terms of the 2012 Plan.

Plan Administration. Our board of directors or one or more committees consisting solely of directors designated by our board will administer the 2012 Plan. The committee or the full board of directors, as applicable, will determine the participants to receive awards, the type and number of awards to be granted to each participant, and the terms and conditions of each grant. The board or such committee(s) may also delegate, to the extent permitted by applicable laws, to one or more officers of our company, its powers under the 2012 Plan to determine the officers and employees who will receive awards, the number of such awards, and the terms and conditions thereof. Subject to the limitations under the 2012 Plan, the plan administrator from time to time may authorize, generally or in specific cases only, for the benefit of any participant, any adjustment in exercise or purchase price, vesting schedule, and re-granting of awards by waiver or by other legally valid means.

Award Agreement. Awards granted under the 2012 Plan are evidenced by an award agreement that sets forth terms, provisions and restrictions for each award, which may include the type of award, the term of the award, vesting provisions, the exercise or purchase price, and the provisions applicable in the event that the recipient’s employment or service terminates. Under the plan, each recipient of option award shall duly sign a power of attorney delegating the voting rights and signing rights of ordinary shares issued upon the exercise of the option award.

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Eligibility. We may grant awards to our officers, directors, employees, consultants and advisors of our company.

Acceleration of Awards upon Change in Control. If a change in control of our company occurs, the plan administrator may, in its sole discretion, accelerate the awards so that they may immediately vest without any forfeiture restrictions, unless the plan administrator has otherwise provided for substitution, assumption, exchange or other continuation or settlement of the award.

Vesting Schedule. In general, the plan administrator determines the vesting schedule, which is specified in the relevant award agreement.

Exercise of Options. The plan administrator determines the exercise price for each option award, which is stated in the award agreement and shall in no case be lower than the par value of our ordinary shares. Once vested, an option award will remain exercisable until the date of expiration or termination, unless otherwise provided by the plan administrator. However, each option award shall expire no more than 10 years after its date of grant.

Transfer Restrictions. Awards may not be transferred in any manner by the recipient, save for certain exceptions including transfers to our company, transfers by gift to an affiliate or an immediately family member, transfer by will or the laws of descent and distribution, and other exceptions provided for by the plan administrator.

Amendment and Termination of the 2012 Plan. Subject to any shareholder approval, our board of directors may, at any time, terminate or, from time to time, amend, modify or suspend this 2012 Plan. Unless terminated earlier, the 2012 Plan will terminate at the close of business on October 31, 2022.

2014 Plan

We adopted the 2014 share incentive plan, or the 2014 Plan, in November 2014. The maximum aggregate number of shares which may be issued pursuant to all awards under the 2014 Plan is initially 14,031,194 Class A ordinary shares. Beginning in 2017, the number of shares reserved for future issuances under the 2014 Plan will be increased by a number equal to 1.5% of the total number of outstanding shares on the last day of the immediately preceding calendar year, or such lesser number of Class A ordinary shares as determined by our board of directors, on the first day of each calendar year during the term of the 2014 Plan. As a result, the maximum aggregate number of shares which may be issued pursuant to all awards under the 2014 Plan has been increased to 25,841,798 Class A ordinary shares. As of March 31, 2018, we have granted options to purchase 18,552,529 Class A ordinary shares (excluding those that have been forfeited and cancelled) and 340,001 restricted share units under our 2014 Plan, of which options to purchase an aggregate of 14,132,881 Class A ordinary shares remained outstanding and 162,500 restricted share units remained outstanding. The following paragraphs summarize the terms of the 2014 Plan.

Types of Awards. The 2014 Plan permits the awards of options, restricted shares and restricted share units.

Plan Administration. Our board or a committee of one or more members of our board duly authorized for the purpose of the 2014 Plan can act as the plan administrator.

Award Agreement. Options, restricted shares or restricted share units granted under the 2014 Plan are evidenced by an award agreement that sets forth the terms, conditions and limitations for each grant.

Eligibility. We may grant awards to our employees, directors, consultants, or other individuals as determined, authorized and approved by the plan administrator. However, we may grant options that are intended to qualify as incentive share options only to our employees and employees of our parent companies and subsidiaries.

Acceleration of Awards upon Change in Control. If a change in control, liquidation or dissolution of our company occurs, the plan administrator may, in its sole discretion, provide for (i) all awards outstanding to terminate at a specific time in the future and give each participant the right to exercise the vested portion of such awards during a specific period of time, or (ii) the purchase of any award for an amount of cash equal to the amount that could have been attained upon the exercise of such award, or (iii) the replacement of such award with other rights or property selected by the plan administrator in its sole discretion, or (iv) payment of award in cash based on the value of Class A ordinary shares on the date of the change-in-control transaction plus reasonable interest.

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Exercise of Options. The plan administrator determines the exercise price for each award, which is stated in the award agreement. The vested portion of option will expire if not exercised prior to the tenth anniversary after the date of a grant, unless extended by the plan administrator.

Exercise Price of Options. The exercise price in respect of any option shall be determined by the plan administrator and set forth in the award agreement which may be a fixed or variable price related to the fair market value of the shares. The exercise price per share subject to an option may be amended or adjusted in the absolute discretion of the plan administrator, the determination of which shall be final, binding and conclusive.

Vesting Schedule. In general, the plan administrator determines the vesting schedule, which is set forth in the award agreement.

Transfer Restrictions. Awards may not be transferred in any manner by the recipient other than by will or the laws of descent and distribution, except as otherwise provided by the plan administrator.

Termination. Unless terminated earlier, the 2014 Plan will terminate automatically in 2024.

The following table summarizes, as of March 31, 2018, the outstanding options under the 2012 Plan and 2014 Plan granted to certain officers, directors, employees and consultants.