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, 2006 (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-__________. ) N/A Huaneng Power International, Inc. West Wing, Building C, Tianyin Mansion No. 2C Fuxingmennan Street Xicheng District Beijing, 100031 PRC This Form 6-K consists of: The announced approval of share reform proposal of Huaneng Power International Inc. (the "Registrant") by the Ministry of Commerce of the People's Republic of China, made by the Registrant in English on April 12, 2006. 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 under-signed, thereunto duly authorized. HUANENG POWER INTERNATIONAL, INC. By /s/ Huang Long --------------- Name: Huang Long Title: Company Secretary Date: April 12, 2006 [GRAPHIC OMITTED] (a Sino-foreign joint stock limited company incorporated in the People's Republic of China) (Stock Code: 902) OVERSEAS REGULATORY ANNOUNCEMENT Share Reform Proposal Approved by the Ministry of Commerce This announcement is made by Huaneng Power International, Inc. (the "Company") pursuant to Rule 13.09(2) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited. This announcement will also be made in Shanghai at the same time. The Company has received from the Ministry of Commerce of the People's Republic of China (the "MOC") a reply that the change of shareholding structure of the Company resulted from the share reform has been approved by the MOC. By Order of the Board Huang Long Vice Chairman As at the date of this announcement, the directors of the Company are: Li Xiaopeng Qian Zhongwei (Executive Director) (Independent non-executive director) Huang Yongda Xia Donglin (Non-Executive Director) (Independent non-executive director) Na Xizhi Liu Jipeng (Executive Director) (Independent non-executive director) Huang Long Wu Yusheng (Executive Director) (Independent non-executive director) Wu Dawei Yu Ning (Non-executive Director) (Independent non-executive director) Shan Qunying (Non-executive Director) Ding Shida (Non-executive Director) Xu Zujian (Non-executive Director) Liu Shuyuan (Non-executive Director) Beijing, the PRC 12th April 2006