[This Form 6-K consists of: (Stock Code: 902) ANNOUNCEMENT In the afternoon on 13 March 2015, due to mechanical failure, No.2 generation unit (165 MW) of Huaneng Beijing Co-generation Limited Liability Company (“Beijing Co-generation”), a subsidiary of Huaneng Power International, Inc. (the “Company”) caught fire and ignited flammable materials. Following the incident, Beijing Co-generation took immediate emergency measures, quickly organized]

[This Form 6-K consists of: DATE OF MEETING OF THE BOARD OF DIRECTORS Board Company The board of directors (the “ announced that a meeting of the Board of the Company will be convened on Tuesday, 24 March 2015, for the purposes of considering and approving the final results announcement of the Company for the year ended 31 December 2014]

[This Form 6-K consists of: 2 CONNECTED TRANSACTION - 1 - RELATIONSHIP BETWEEN THE COMPANY, HUANENG HK AND BEIJING CO-GENERATION The Company and its subsidiaries mainly develop, construct, operate and manage large-scale power plants in China nationwide. It is one of the largest listed power producers in China. As at the date of this announcement, the Company’s controlled generation capacity]

[This Form 6-K consists of: (a Sino-foreign joint stock limited company incorporated in the People's Republic of China) (Stock Code: 902) UNIT NO.2 OF HUBEI YINGCHENG CO-GENERATION COMMENCES OPERATION Huaneng Power International Inc. (the “Company”) announces that the coal-fired generation unit No.2 with 350 MW of Hubei Huaneng Yingcheng Co-generation Co. Ltd. (which is wholly-owned by the Company) has recently]

[This Form 6-K consists of: ANNOUNCEMENT ON RESIGNATION OF INDEPENDENT NON-EXECUTIVE DIRECTORS Board of Directors Company The board of directors (the “ Mr. Qi Yudong and Ms. Zhang Lizi confirm that they have no disagreement with the Board of Directors of the Company and there is no matter relating to their resignations that needs to be brought to the attention]