[This Form 6-K consists of: PROPOSED APPOINTMENT OF DIRECTOR “ ” Reference is made to the announcement dated 14 December 2011 published by Huaneng Power International, Inc. (the PROPOSED APPOINTMENT OF DIRECTOR “ ” The Company proposes to nominate Mr. Guo Hongbo ( Mr. Guo’s biographical details are set out below: Mr. Guo Hongbo, aged 43, is the General Manager]

[This Form 6-K consists of: Regarding Payment of Corporate Bond Interest for 2011 and listing for trading of Restricted Shares not Publicly Issued The board of directors of Huaneng Power International, Inc. (the “Company”) issued an announcement in Chinese on December 20, 2011 regarding payment of the interest accrued on its corporate bonds (the “Interest Payment Announcement”). The Company also]

[This Form 6-K consists of: (a Sino-foreign joint stock limited company incorporated in the People's Republic of China) (Stock Code: 902) APPROVAL OBTAINED ON CHONGQING LIANG JIANG GAS - FIRED COMBINED COOLING - HEATING - POWER PROJECT Huaneng Power International, Inc. (the ÒCompanyÓ) announced that Huaneng Chongqing Liang Jiang Gas-fired Combined Cooling-Heating-Power Project (the ÒProjectÓ) (which is wholly owned by]

[This Form 6-K consists of: announcement. RESIGNATION OF DIRECTOR Due to change of work requirement, Mr. Liu Shuyuan, a Director of Huaneng Power International, Inc. (the “Company”) has, in accordance with the relevant provision of the articles of association of the Company, tendered his resignation report in writing to the board of directors of the Company on 13 December 2011]