[This Form 6-K consists of: LIAONING CHANGTU LAOCHENG WIND FARM PROJECT OBTAINS APPROVAL Huaneng Power International Inc. (the "Company") announced that Huaneng Liaoning Changtu Laocheng Wind Farm Project (which is wholly-owned by the Company) had recently obtained the approval from the Development and Reform Commission of the Liaoning Province. This Project has a planned installed capacity of 48MW with an]

[This Form 6-K consists of: (Stock Code: 902) 2013 Interim Results Announcement Consolidated operating revenue: RMB64.062 billion Profit attributable to equity holders of the Company: RMB5.623 billion Earnings per share: RMB0.40 INTERIM RESULTS The Board of Directors (the “Board”) of Huaneng Power International, Inc. (the “Company”) announces the unaudited operating results for the six months ended 30 June 2013 and]

[This Form 6-K consists of: “ ” A clarification CLARIFICATION ANNOUNCEMENT DATE OF MEETING OF THE BOARD OF DIRECTORS “ ” Reference is made to the announcement published by Huaneng Power International, Inc. (the “ ” The board of directors (the By Order of the Board Huaneng Power International, Inc. Du Daming Company Secretary As at the date of this]

[This Form 6-K consists of: “ ” An announcement regarding the date of board meeting of Huaneng Power International, Inc. (the DATE OF MEETING OF THE BOARD OF DIRECTORS “ ” “ ” The board of directors (the By Order of the Board Huaneng Power International, Inc. Du Daming Company Secretary As at the date of this announcement, the directors]

[This Form 6-K consists of: POWER GENERATION WITHIN CHINA DECREASES BY 0.46% FOR THE FIRST HALF YEAR OF 2013 Huaneng Power International, Inc. (the "Company") announces its power generation for the first half year of 2013. According to the Company’s preliminary statistics, as of June 30, 2013, the Company’s total power generation within China on consolidated basis amounted to 149.483]