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 July, 2004

   (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:

         A press release on an announcement in connection with signing of a
medium-to-long term coal supply agreement with Shenhua Coal Trading Company by
Huaneng Power International Inc., made on July 26, 2004, in English by Huaneng
Power International Inc.









                                   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:  July 26, 2004






                               [GRAPHIC OMITTED]

To: Business Editor
[For Immediate Release]


                       HUANENG POWER INTERNATIONAL, INC.
            Signed a Medium-to-Long Term Coal Supply Agreement with
                         Shenhua Coal Trading Company


(Beijing, China, July 26, 2004) Huaneng Power International, Inc. (the
"Company") [NYSE: HNP; HKEx: 902; SSE: 600011] has signed the "Year 2005-2007
Coal Supply Agreement" (the "Agreement") with Shenhua Coal Trading Company (
"Shenhua Coal" ) today.

Pursuant to the Agreement, Shenhua Coal will be providing to the Company with
high-quality thermal coal amounting to 9 million tonnes, 10.5 million tonnes
and 11 million tonnes for the years of 2005, 2006 and 2007 respectively. After
amicable discussion under the principle of taking up mutual responsibility
vis-a-vis market risks, a basic price was set with the guarantee that any
annual increase/decrease would not exceed by 5%. Prior to the Agreement, the
two parties have already concluded and signed another agreement on increasing
allocated coal supply by 1.5 million tonnes to the Company by Shenhua Coal in
the second half of 2004.

The annual coal yield of Shenhua Group Co. Ltd. is 120 million tonnes.
Currently, it is one of the largest coal suppliers in the PRC and Shenhua Coal
is its wholly-owned subsidiary. Throughout the years, Shenhua Coal and the
Company have been maintaining good relations regarding coal supplies and other
business aspects. In view of the difficult market situations regarding coal
supply, electricity demand and transportation, both parties have been working
hard on the principles of integrity and mutual benefits with an aim to resolve
the problem of power supply shortage during the peak summer season. The
cooperation between the two parties exemplifies an excellent operation of a
medium-to-long term agreement on coal supply to power companies. The signing
of the Agreement is also consistent with the State's objectives and policies
in promoting market mechanisms in thermal coal supply.

 Huaneng Power International, Inc. develops, constructs, operates and manages
large thermal power plants in China nationwide, with a total generation
capacity of 18,832MW on an equity basis. The Company wholly owns sixteen power
plants, and has controlling interests in seven power plants and minority
interests in four power companies. Today, it is one of the largest independent
power producers 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