FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

The Securities Exchange Act of 1934

For the month of April 2021

(Indicate by check mark whether the registrant files or will file annual reports

under cover of Form 20-F or Form 40-F.)

Form 20-F

Form 40-F

(Indicate by check mark whether the registrant by furnishing the information

contained in this form is also thereby furnishing the information to the

Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes

(If "Yes" is marked, indicate below the file number assigned to registrant in

connection with Rule 12g3-2(b): 82-__________.)

N/A

Huaneng Power International, Inc.

Huaneng Building,

6 Fuxingmennei Street,

Xicheng District,

Beijing, 100031 PRC

This Form 6-K consists of:

1.	an announcement regarding board meeting date of Huaneng Power International, Inc. (the "Registrant"), made by the Registrant on April 13, 2021.

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss however arising from or reliance upon the whole or any part of the contents of this announcement.

DATE OF MEETING OF THE BOARD OF DIRECTORS

The board of directors (the “Board”) of Huaneng Power International, Inc. (the “Company”) announces that a meeting of the Board of the Company will be convened on Tuesday, 27 April 2021, for the purposes of considering and approving the results announcement of the Company for the three months ended 31 March 2021 for publication, if any, and transacting any other business.

	By order of the Board
	Huaneng Power International, Inc.
	Huang Chaoquan
	Company Secretary

As of the date of the announcement, the directors of the Company are:

Zhao Keyu (Executive Director)	Xu Mengzhou (Independent Non-executive Director)
Zhao Ping (Executive Director)	Liu Jizhen (Independent Non-executive Director)
Huang Jian (Non-executive Director)	Xu Haifeng (Independent Non-executive Director)
Wang Kui (Non-executive Director)	Zhang Xianzhi (Independent Non-executive Director)
Lu Fei (Non-executive Director)	Xia Qing (Independent Non-executive Director)
Teng Yu (Non-executive Director)
Mi Dabin (Non-executive Director)
Cheng Heng (Non-executive Director)
Li Haifeng (Non-executive Director)
Lin Chong (Non-executive Director)

Beijing, the PRC

13 April 2021

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	HUANENG POWER INTERNATIONAL, INC.


	By	/s/ Huang Chaoquan

	Name:	Huang Chaoquan

	Title:	Company Secretary

Date: April 14, 2021