FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 PAGE 1 OF 4 PAGES Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 December, 2002 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: A press release of Huaneng Power International Inc. on December 9, 2002, in English about its power plant's tariff adjustment. 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/ Wang Xiaosong ------------------- Name:Wang Xiaosong Title:Vice Chairman Date: December 10, 2002 [GRAPHIC OMITTED] To: Business Editor [For Immediate Release] HUANENG POWER INTERNATIONAL, INC. Announces Tariff Adjustment for Fuzhou Power Plant (Beijing, China, December 9, 2002) Huaneng Power International, Inc. (the "Company") [NYSE: HNP; HKEx: 902; SSE: 600011] today announced the tariff adjustment for Huaneng Fuzhou Power Plant ("Fuzhou Power Plant"). In accordance with the document of the State Development and Planning Committee, Fujian Province has recently carried out on-grid tariff adjustments for power plants in the province. As a result, the on-grid tariff for the Company's Fuzhou Power Plant was adjusted from RMB378.2 per MWh (including VAT) to RMB365 per MWh (including VAT) effective on December 1, 2002. The current generation capacity for Fuzhou Power Plant is 1,400MW, representing 10.08% of the Company's total generation capacity. The Company will further reinforce the operating management as well as the safety and stability of the power plant and will strengthen cost controls to offset part of the impact of the tariff adjustment. Huaneng Power International, Inc. develops, constructs, operates and manages large thermal power plants in China nationwide. With total net generation capacity of 13,895MW, the Company is the largest independent power producer in China. ~ End ~ For further information, please contact: Ms. Meng Jing / Ms. Zhao Lin Ms. Christy Lai / Ms. Edith Lui Huaneng Power International, Inc. Rikes Communications Limited Tel: (8610) 6649 1856 / 1866 Tel: (852) 2520 2201 Fax: (8610) 6649 1860 Fax:(852) 2520 2241 Email: ir@hpi.com.cn December 10, 2002 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Re: Huaneng Power International, Inc. --------------------------------- Dear Sir or Madam: In accordance with Rule 13a-16 of the Securities and Exchange Act of 1934, we furnish, on behalf of Huaneng Power International, Inc., eight copies of Form 6-K, one of which is manually signed. Please acknowledge receipt of the enclosures by date stamping the attached copy of this letter and returning it to our messenger who has been instructed to wait. Very truly yours, Qian Zhao Enclosures cc: New York Stock Exchange, Inc.