[This Form 6-K consists of: Document 1 (Stock Code: 902) PLACING OF NEW H SHARES UNDER GENERAL MANDATE Joint Global Coordinators, Joint Bookrunners and Joint Placing Agents]

[This Form 6-K consists of: Document 1 FIRST SET OF GENERATION UNIT OF CHONGQING LIANGJIANG TURBINE POWER RECENTLY COMMENCED OPERATION Company Huaneng Power International Inc. (the “ To date, the Company’s total controlled generation capacity has increased to 67,861MW from 67,394MW, and total equity-based generation capacity has increased to 61,134MW from 60,667MW. By order of the Board Huaneng Power International,]

[This Form 6-K consists of: (a Sino-foreign joint stock limited company incorporated in the People’s Republic of China) (Stock Code: 902) DISCLOSEABLE AND CONNECTED TRANSACTIONS ANNOUNCEMENT IN RELATION TO PROFIT FORECAST OF CHAOHU POWER Reference is made to the announcement dated 14 October 2014 issued by the Company in relation to the acquisition of the Hainan Power Interests, the Wuhan]

[This Form 6-K consists of: (a Sino-foreign joint stock limited company incorporated in the People’s Republic of China) (Stock Code: 902) All financial information set out in this quarterly report is unaudited and prepared in accordance with the PRC Accounting Standards (“PRC GAAP”). 1. IMPORTANT NOTICE 1.1 1.2 All financial information set out in this quarterly report is unaudited and]

[This Form 6-K consists of: ’ (a Sino-foreign joint stock limited company incorporated in the People (Stock Code: 902) GENERATION UNITS OF TONGXIANG GAS TURBINE AND CHANGTU WIND FARM RECENTLY COMMENCED OPERATION Huaneng Power International Inc. (the “Company”) announced that two E-class natural gas combined cycle units of Zhejiang Huaneng Tongxiang Gas Turbine Cogeneration Co., Ltd. (in which the Company]