Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of
The Securities Exchange Act of 1934

For the month of June 2020

(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       X       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              No       X      

(If "Yes" is marked, indicate below the file number assigned to registrant in
connection with Rule 12g3-2(b): 82-__________.)

Huaneng Power International, Inc.
Huaneng Building,
6 Fuxingmennei Street,
Xicheng District,
Beijing, 100031 PRC

This Form 6-K consists of:

An announcement regarding issue of mid-term notes of Huaneng Power International, Inc. (the "Registrant"), made by the Registrant on June 24, 2020.

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 howsoever arising from or  in reliance upon the whole or any part of the contents of this announcement.



This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”).

As resolved at the 2019 annual general meeting of Huaneng Power International, Inc. (the “Company”) held on 16 June 2020, the Company has been given a mandate to issue domestic and/or overseas debt financing instruments after relevant regulatory department approval (including but not limited to domestic debt financing instruments like corporate bonds, enterprise bonds, mid-term notes  in the interbank bond markets in the domestic market, and overseas debt financing instruments like offshore RMB-denominated bonds, overseas USD denominated bonds and bonds denominated in other foreign currencies in the overseas market) (in either one or multiple tranches on rolling basis) with a principal amount of up to RMB70 billion or equivalent within or outside the People’s Republic of China within the period from approval obtained at 2019 annual general meeting to the conclusion  of the 2020 annual general meeting.

The Company has recently completed the issue of the second tranche of the Company’s mid-term notes for 2020 (the “Notes”). The issuing amount of the Notes was RMB3.5 billion for a term of 3+N years. The unit face value is RMB100 and the issuing interest rate is 3.60%.

Industrial and Commercial Bank of China Co., Ltd. and China CITIC Bank Co., Ltd. act as the lead underwriters to form the underwriting syndicate for the Notes, which were placed through book- building and issued in the domestic interbank market. The proceeds from the Notes will be used to repay due debt financing instruments.

The relevant documents in respect of the Notes are posted on China Money and Shanghai Clearing House at websites of and, respectively.

The Notes do not constitute any transaction under Chapter 14 and Chapter 14A of the Listing Rules.

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

As at the date of this notice, the directors of the Company are:

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

Beijing, the PRC
24 June 2020


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 under-signed, thereunto duly authorized.

By  /s/ Huang Chaoquan
Name: Huang Chaoquan
Title: Company Secretary

Date:  June 24, 2020

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