Exhibit 10.1

EXECUTION COPY

SECOND AMENDMENT TO CENTREPOINTE BUSINESS PARK LEASE AGREEMENT

This Second Amendment to Centrepointe Business Park Lease Agreement (this “Amendment”) is dated October 5, 2023, between CENTREPOINTE PROPERTIES, LLC, a Utah limited liability company (“Landlord”), and SINTX TECHNOLOGIES, INC, a Delaware corporation (formerly known as Amedica Corporation) (“Tenant”).

The Landlord and Tenant are parties to the Centrepointe Business Park Lease Agreement dated April 21, 2009, as amended by the Amendment to Centrepointe Business Park Lease Agreement dated June 7, 2019 (the “Lease”). The parties want to further amend the Lease as stated in this Amendment.

The parties therefore agree as follows:

1. Definitions. Capitalized terms used in this Amendment but not otherwise defined have the meanings given in the Lease.

2. Expansion of Premises. As of November 1, 2023, the Premises are hereby amended and expanded by 1,230 rental square feet (the “Expansion Premises”) for a total of approximately 30,764 square feet. The Premises, as amended by this Amendment, are as shown on exhibit A with any ambiguities to be reasonably determined by the Landlord’s architect.

3. Amended Term. The Term is amended to end on October 31, 2031, with one five-year Extension Option. The Extension Option will be on the same terms as in the Lease (modified to be consistent with this Amendment) and may be for all or a portion of the Premises.

4. Amended Base Rent. Effective beginning November 1, 2023, the Base Rent is amended to be $17.00 per RSF. Base Rent on the Expansion Premises will be zero until April 1, 2024. For clarity, beginning November 1, 2023, through March 31, 2024, Base Rent will be charged on 29,534 RSF and beginning April 1, 2024, through the end of the Term, Base Rent will be charged on 30,764 RSF. Beginning on November 1, 2025, and on each one-year anniversary of November 1, 2025, thereafter, the amended Base Rent will increase by 3% of the immediately preceding prior year’s Base Rent.

5. Improvements

5.1 The Landlord and the Tenant shall cooperate to make the following improvements, and the Landlord shall pay for those improvements to the Premises:

(a) Removing walls to expand the Premises, including the addition of a new demising wall to be constructed with comparable building standards and premises finishes (i.e., framing, sheetrock, paint, etc.) so that the demising wall finishes reasonably match the other walls in the Premises. Tenant and Landlord shall cooperate in constructing the new demising wall, but the work will be primarily managed by Landlord.

(b) Installing new LED light fixtures in the production area and office areas of the Premises. The final pricing and specifications of the light fixtures is listed on exhibit B. Tenant and Landlord shall cooperate in installing new LED light fixtures, but the work will be primarily managed by Landlord.

(c) Installing a small roof-top crane. Landlord is not obligated to contribute more than $4,000 to the installation of the crane. If Tenant wants to upgrade the roof- top crane to a more expensive model, Tenant shall pay or reimburse the Landlord for the additional cost. The crane location on the roof will be as agreed by the parties. Tenant shall manage the installation of the crane. The crane will be owned by the Landlord after installation.

5.2 The Landlord shall make the following building improvements at its sole cost:

(a) Install video surveillance for the building. The Landlord shall share video footage with the Tenant from time to time for appropriate business purposes as reasonably requested by the Tenant.

(b) Repair the tile floor in the lobby.

(c) Install four EV charging ports in the parking lot on the west side of the Premises that Tenant will have the nonexclusive right to use throughout the Term.

6. Other Covenants

6.1 Right of First Offer. If the Tenant is not in default of its obligations under the Lease, during the Term, the Tenant is granted an ongoing right of first offer (“ROFO”) to lease additional space in the Building as such additional space becomes available. The Landlord shall give the Tenant written notice of the availability of any of said additional space. The Tenant will have 15 Business Days from the receipt of the Landlord’s notice to notify the Landlord in writing whether the Tenant will lease the additional space. If the Tenant accepts the offer, the parties will amend the Lease to add the additional space to the Premises, the term of the lease for the offered space will match the Term of the Lease (as amended by this Amendment), and the other terms applicable to the additional space will be the same as under the Lease (as amended by this Amendment) with the Base Rent increased to account for the increase in the Premises. If the Tenant declines the offer to lease additional space or fails to notify the Landlord within the 15 Business Days, the Tenant’s right of first offer with respect to that space will be null and void and of no further force and effect, and the Landlord will be free to lease that space to any person or entity upon any terms and for any purpose.

7. Conforming Modifications. The Lease is amended to be consistent with this Amendment and to provide that it will be a breach of the Lease if a party fails to comply with the terms of this Amendment. If there is a conflict between the terms of this Amendment and any term in the Lease, the terms of this Amendment will control. Except as specifically set forth in this Amendment, all terms of the Lease remain unmodified and in full force and effect. Any reference to the Lease after the date of this Amendment is deemed to be a reference to the Lease as amended by this Amendment.

8. General Provisions

8.1 Entire Agreement. This Amendment constitutes the final agreement between the parties. It is the complete and exclusive expression of the parties’ agreement on the matters contained in this Amendment. All prior and contemporaneous negotiations and agreements between the parties on the matters contained in this Amendment are expressly merged into and superseded by this Amendment. The provisions of this Amendment may not be explained, supplemented, or qualified through evidence of trade usage or a prior course of dealings. There are no conditions precedent to the effectiveness of this Amendment other than those expressly stated in this Amendment.

8.2 Counterparts; Facsimile and Electronic Signatures. The parties may sign this Amendment in multiple counterparts, each of which constitutes an original, and all of which, collectively, constitute only one agreement. The signatures of all the parties need not appear on the same counterpart, and delivery of a signed counterpart signature page by facsimile or electronically is as effective as signing and delivering this Amendment in the presence of the other parties to this Amendment. This Amendment is effective upon delivery of one executed counterpart from each party to the other parties. In proving this Amendment, a party must produce or account only for the signed counterpart of the party to be charged.

8.3 Interpretation. This Amendment will not be construed in favor of or against any party because of authorship or for any other reason.

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The parties are signing this Second Amendment to Centrepointe Business Park Lease Agreement on the date stated in the introductory paragraph.

EXHIBIT A THE

PREMISES

EXHIBIT B

LED LIGHT FIXTURES

LED light fixtures will be comparable to what has been replaced in the space.

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, B. Sonny Bal, certify that:

1. I have reviewed this quarterly report on Form 10-Q of SINTX Technologies, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, B. Sonny Bal, certify that:

1. I have reviewed this quarterly report on Form 10-Q of SINTX Technologies, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Exhibit 32

CERTIFICATIONS UNDER SECTION 906

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), each of the undersigned officers of SINTX Technologies, Inc., a Delaware corporation (the “Company”), does hereby certify, to such officer’s knowledge, that:

The quarterly report for the quarter ended September 30, 2023 (the “Form 10-Q”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.