Capital Contribution and Connected Transaction

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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)

                                ANNOUNCEMENT
                          CAPITAL CONTRIBUTION AND 
                           CONNECTED TRANSACTION

    Capital Contribution Agreement
    The Board is pleased to announce that on 21 May 2010, the Company entered 
into the Capital Contribution Agreement with Datang Coal Mining Company. 
Pursuant to the Capital Contribution Agreement, Datang Coal Mining Company 
will make contribution amounting to approximately RMB329.0892 million to the 
capital of Ximeng Mining Company by way of cash and will jointly develop and 
construct Shengli Coal Mine East Unit 2 with the Company. Upon completion of 
the increase in capital contribution, the shareholding structure of Ximeng 
Mining Company will be as follows: the Company will hold 60% of its equity 
interest and Datang Coal Mining Company will hold 40% of its equity interest. 
Ximeng Company will still remain to be the subsidiary of the Company with 
controlling interest. 

    Connected Transaction
    As at the date of this announcement, Datang Coal Mining Company is a 
wholly-owned subsidiary of CDC. CDC and its subsidiaries hold a total of 
approximately 35.08% of the issued share capital of the Company. Accordingly, 
Datang Coal Mining Company is a connected person of the Company under the 
Listing Rules and the entering into of the Capital Contribution Agreement 
constitutes a connected transaction of the Company. 
    As one or more of the applicable percentage ratios (as defined in Rule 
14.07 of the Listing Rules) of the Capital Contribution Agreement is more than 
0.1% but less than 2.5%, the transaction contemplated under the Capital 
Contribution Agreement is only subject to the reporting and announcement 
requirements under Rules 14A.45 to 14A.47 of the Listing Rules and does not 
require the approval by the independent Shareholders of the Company under 
Chapter 14A of the Listing Rules.

    BACKGROUND
    As at the date of this announcement, Ximeng Mining Company is a wholly-
owned subsidiary of the Company and is responsible for the development, 
construction and operation of Shengli Coal Mine East Unit 2 projects. As at 
the date of this announcement, Phase I project has been completed and 
commenced production (with production capacity of 10 million tonnes per year). 
In order to further obtain capital support and enhance the utilisation of the 
Company's capital, the Company entered into the Capital Contribution Agreement 
with Datang Coal Mining Company on 21 May 2010. Pursuant to the Capital 
Contribution Agreement, Datang Coal Mining Company will make contribution 
amounting to approximately RMB329.0892 million to the capital of Ximeng Mining 
Company by way of cash and will jointly develop and construct Shengli Coal 
Mine East Unit 2 with the Company. Upon completion of the increase in capital 
contribution, the shareholding structure of Ximeng Mining Company will be as 
follows: the Company will hold 60% of its equity interest and Datang Coal 
Mining Company will hold 40% of its equity interest. Ximeng Company will still 
remain to be the subsidiary of the Company with controlling interest.

    CAPITAL CONTRIBUTION AGREEMENT

    Date

    21 May 2010

    Parties 

    (i)  The Company; and
    (ii) Datang Coal Mining Company.

    MAJOR TERMS OF THE CAPITAL CONTRIBUTION AGREEMENT

    (1) Based on the valuation result (issued by an independent third-party 
        valuer) on the valuation date being 31 July 2009, Datang Coal Mining 
        Company proposed to make contribution to the capital of Ximeng Mining 
        Company, amounting to approximately RMB329.0892 million, by way of 
        cash. The actual contribution amount will be determined after taking 
        into account the variation amount in the equity interest of Ximeng 
        Mining Company between the valuation date and the date of implementing 
        the capital contribution and shareholding expansion (which will be 
        determined by an independent third-party project auditor to be 
        appointed by the parties concerned). Upon completion of the increase 
        in capital contribution, the shareholding structure of Ximeng Mining 
        will be as follows: the Company will hold 60% of its equity interest 
        and Datang Coal Mining Company will hold 40% of its equity interest.

    (2) The Capital Contribution Agreement will be effective upon its due 
        execution by the respective parties.

    (3) Datang Mining Company shall deposit the capital contribution amount to 
        the special account of Ximeng Mining Company within 40 days upon the 
        Capital Contribution Agreement becoming effective.

    INFORMATION OF XIMENG MINING COMPANY
    Ximeng Mining Company is a wholly-owned subsidiary of the Company as at 
the date of this announcement and was set up in Xilinhaote City, Inner 
Mongolia on 23 August 2007 with registered capital amounting to RMB375,970,000. 
It is responsible for the development, construction and operation of the 
projects of Shengli Coal Mine East Unit 2. Shengli Coal Mine East Unit 2 
mainly produces brown coal of 3,000-3,500Kal/kg and mainly fulfills the needs 
of the Company's coal-to-chemical projects, coal-to-gas projects and coal 
applicable to power plants. As at the date of this announcement, the Phase I 
project (with capacity of 10 million tonnes per year) has basically been 
completed and commenced production; while the application report of the Phase 
II project (with capacity of 10 million tonnes per year) has been submitted to 
the NDRC for approval.
    As at 31 July 2009, upon valuation by the independent valuer, Ximeng 
Mining Company's total assets (with mining rights) amounted to approximately 
RMB2,562,638,100, total liabilities amounted to approximately RMB2,098,716,800 
and net assets amounted to approximately RMB493,633,800.
    Pursuant to the current relevant requirements on application for mining 
permits, the Company has obtained the mining permits for projects of Shengli 
Coal Mine East Unit 2 issued by the State Committee for Land Resources. The 
Company undertakes that it will change the authorised person of mining to 
Ximeng Mining Company when conditions mature. Before the change, the 
authorisation of mining will be used by Ximeng Mining Company.
    Upon completion of the increase in capital contribution, Ximeng Company 
will still remain to be the subsidiary of the Company with controlling 
interest.

    INFORMATION OF THE COMPANY
    The Company is principally engaged in the construction and operation of 
power plants, the sale of electricity and thermal power, the repair and 
maintenance of power equipment and power related technical services, with its 
main service areas being in the PRC.

    INFORMATION OF DATANG MINING COMPANY
    Datang Mining Company is a wholly State-owned company established in 
Beijing in March 2009 with registered capital of RMB1 billion. It is 
principally engaged in scientific research, development, exploration, sales, 
storage and processing relating to the coal production business; and is 
responsible for the corporatised and professional management of coal (mining) 
projects of CDC.

    REASONS FOR AND BENEFITS OF ENTERING INTO THE CAPITAL CONTRIBUTION 
AGREEMENT
    The increase in capital contribution to Ximeng Mining Company by Datang 
Mining Company will enable Ximeng Mining Company to obtain further capital 
support, thereby continuously moving forward the operation and development of 
Shengli Coal Mine East Unit 2 project. Meanwhile, the capital utilisation rate 
of the Company will be enhanced.
    The Capital Contribution Agreement is entered into under normal business 
terms. The Directors and independent Directors are of the view that the 
relevant terms of the Capital Contribution Agreement are fair and reasonable 
and are in the interest of the Company and the Shareholders as a whole. 

    CONNECTED TRANSACTION
    As at the date of this announcement, Datang Coal Mining Company is a 
wholly-owned subsidiary of CDC. CDC and its subsidiaries hold a total of 
approximately 35.08% of the issued share capital of the Company. Accordingly, 
Datang Coal Mining Company is a connected person of the Company and the 
entering into of the Capital Contribution Agreement constitutes a connected 
transaction for the Company. 
    As one or more of the applicable percentage ratios (as defined in Rule 
14.07 of the Listing Rules) of the Capital Contribution Agreement is more than 
0.1% but less than 2.5%, the transaction contemplated under the Capital 
Contribution Agreement is only subject to the reporting and announcement 
requirements under Rules 14A.45 to 14A.47 of the Listing Rules and does not 
require the approval by the independent Shareholders of the Company under 
Chapter 14A of the Listing Rules.

    DEFINITIONS
    In this announcement, unless the context otherwise requires, the following 
expressions have the following meanings:



    "Board"                   the board of directors                     
                                                                         
    "Capital Contribution     the agreement entered into between the Company
     Agreement"               and Datang Mining Company on 21 May 2010 in 
                              respect of the capital contribution to Ximeng 
                              Mining Company as mentioned in detail in this 
                              announcement   
                                                                         
    "CDC"                     China Datang Corporation, a State-owned    
                              enterprise established under the laws of the PRC 
                              and is a controlling shareholder of the Company 
                              pursuant to the Listing Rules. CDC and its 
                              subsidiaries own approximately 35.08% of the 
                              issued share capital of the Company as at the 
                              date of this announcement
                                                                         
    "Company"                 Datang International Power Generation Co., 
                              Ltd., a sino-foreign joint stock limited company   
                              incorporated in the PRC on 13 December 1994,
                              whose H Shares are listed on the Stock Exchange 
                              and the London Stock Exchange and whose A Shares 
                              are listed on the Shanghai Stock Exchange             
                                                                         
    "Datang Mining            Datang Mining Company Limited, a wholly-owned
     Company"                 subsidiary of CDC                          
                                                                         
    "Director(s)"             the director(s) of the Company             
                                                                         
    "Inner Mongolia"          Inner Mongolia Autonomous Region of the PRC
                                                                         
    "Listing Rules"           The Rules Governing the Listing of Securities
                              on the Stock Exchange                             
                                                                         
    "NDRC"                    National Development and Reform Commission of
                              the PRC                                    
                                                                         
    "PRC"                     the People's Republic of China             
                                                                         
    "RMB"                     Renminbi, the lawful currency of the PRC   
                                                                         
    "Shareholders"            the shareholders of the Company            
                                                                         
    "Shengli Coal Mine        The Shengli Coal Mine East Unit 2 is located
     East Unit 2"             east of Shengli Coal Mine, Xilinguoleimeng, 
                              Inner Mongolia and north of the suburb of 
                              Xilinhaote City, 10 miles away from the city 
                              centre. It is the coal centre of Shengli Coal 
                              Mine with coal products being brown coal as the 
                              main coal                           
                                                                         
    "Stock Exchange"          The Stock Exchange of Hong Kong Limited    
                                                                         
    "Ximeng Mining            Datang International Hilinhaote Mining Company
     Company"                 Limited, a wholly-owned subsidiary of the  
                              Company                                    
                                                                         
    "%"                       per cent                                   


                                                         By Order of the Board
                                                                     Zhou Gang
                                                        Secretary to the Board
           
    Beijing, the PRC, 21 May 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