OVERSEAS REGULATORY ANNOUNCEMENT

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong 
Kong Limited take no responsibility for the contents of this announcement, 
make no representation as to its accuracy or completeness and expressly 
disclaim any liability whatsoever for any loss howsoever arising from or in 
reliance upon the whole or any part of the contents of this announcement.

               DATANG INTERNATIONAL POWER GENERATION CO., LTD.
(a sino-foreign joint stock limited company incorporated in the People's 
                            Republic of China)
                            (Stock Code: 991)

                    OVERSEAS REGULATORY ANNOUNCEMENT

                      ANNOUNCEMENT ON PROGRESS IN
                            MAJOR INVESTMENT


    Special Notice:
    The board of directors (the "Board") and all directors (the "Directors") 
of the Company warrant that there are no false representations and 
misleading statements contained in, or material omissions from this 
announcement, and severally and jointly accept the responsibility for the 
truthfulness, accuracy and completeness of the contents of this 
announcement. 
    This announcement is made pursuant to Rule 13.09(2) of the Rules 
Governing the Listing of Securities on The Stock Exchange of Hong Kong 
Limited (the "Listing Rules").


    The Board of Datang International Power Generation Co., Ltd. ("the 
Company") considered and approved a resolution on 26 March 2008 approving 
the Company to invest in the controlling interest in the construction of a 
project in Fuxin City of Liaoning Province, with an annual output of 4 
billion standard cubic metres of coal-based natural gas ("Fuxin Coal-based 
Natural Gas Project").
    The National Development and Reform Commission has recently approved 
the Fuxin Coal-based Natural Gas Project in NDRC Energy [2010] Doc. No. 378, 
and approved Datang Energy and Chemical Co., Ltd., a wholly-owned 
subsidiary of the Company, to invest in the controlling interest in the 
construction of the Fuxin Coal-based Natural Gas Project involving a total 
investment of RMB24.57 billion, of which RMB7.37 billion is the capital of 
the project.
    A separate announcement regarding the relevant details of the Fuxin 
Coal-based Natural Gas Project will be made by the Company pursuant to the 
requirements of the Listing Rules upon the co-operation agreement is 
entered into by the contributing parties.

                                                      By Order of the Board
                                                                  Zhou Gang     
                                                     Secretary to the Board 

    Beijing, the PRC, 25 March 2010
    As at the date of this announcement, the directors of the Company are:
Zhai Ruoyu, Hu Shengmu, Cao Jingshan, Fang Qinghai, Zhou Gang, Liu Haixia, 
Guan Tiangang, Su Tiegang, Ye Yonghui, Li Gengsheng, Xie Songlin*, Liu 
Chaoan*,Yu Changchun*, Xia Qing* and Li Hengyuan*.

    *  Independent non-executive directors