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                                  

                             CONNECTED TRANSACTION                             

The Board announced that on 6 May 2011, the Board agreed that the Company, CDC,
Huayin Electric Company and Guiguan Electric Company shall increase their      
respective capital contributions in a total amount of RMB1,400 million to      
Datang Finance Company by way of cash. The capital contributions will be made  
by way of cash on a lump-sum basis. According to the Company's shareholding in 
Datang Finance Company, the Company agreed to make a further capital           
contribution of RMB280 million to Datang Finance Company from its internal     
resources. Upon completion of the increase in capital contributions, the       
registered capital of Datang Finance Company will increase from RMB1,600       
million to RMB3,000 million, while the Company's shareholding in Datang Finance
Company will remain as 20%.                                                    
                                                                               
CONNECTED TRANSACTION                                                          
                                                                               
As at the date of this announcement, CDC and its subsidiaries hold a total of  
approximately 36.09% of the issued share capital of the Company and CDC is a   
connected person of the Company under Chapter 14A of the Listing Rules.        
Meanwhile, CDC holds 55.31% of the shares of Datang Finance Company, and Huayin
Electric Company and Guiguan Electric Company are subsidiaries of CDC and are  
therefore connected persons of the Company. The increase in capital            
contribution in Datang Finance Company constitutes a connected transaction of  
the Company under the Listing Rules.                                           
                                                                               
As one or more of the applicable percentage ratios (as defined in Rule 14.07 of
the Listing Rules) is more than 0.1% but less than 5%, the increase in capital 
contribution in Datang Finance Company is only subject to the reporting and    
announcement requirements under Chapter 14A of the Listing Rules and does not  
require the approval by the independent shareholders of the Company under      
Chapter 14A of the Listing Rules.                                              

DETAILS OF THE INCREASE IN CAPITAL CONTRIBUTIONS

The Board considered and agreed on 6 May 2011 that the Company, CDC, Huayin
Electric Company and Guiguan Electric Company shall increase their respective
capital contributions in a total amount of RMB1,400 million to Datang Finance
Company by way of cash. The capital contributions will be made by way of cash
on a lump-sum basis. The Company agreed to make a further capital contribution
of RMB280 million to Datang Finance Company from its internal resources
according to the Company's current 20% shareholding in Datang Finance Company.
Upon completion of the increase in capital contributions, the registered
capital of Datang Finance Company will increase from RMB1,600 million to
RMB3,000 million, while the Company's shareholding in Datang Finance Company
will remain as 20% (the execution of the capital contributions by Huayin
Electric Company and Guiguan Electric Company is subject to the consideration
and approval by their respective internal authorities). The registered capital
of Datang Finance Company is determined with reference to the average level of
the registered capital of finance companies in the PRC.

The above-mentioned capital contributions is subject to the consideration and
approval by the CBRC.

The shareholding structure of Datang Finance Company, the amounts of increase
in capital contributions made by each of the shareholders of Datang Finance
Company and their respective shareholding ratios prior to and after the
completion of the increase in capital contributions are set out as follows:



                         Capital                                           Capital      
                    contribution                                      contribution      
                    prior to the    Shareholding    Amount of the            after    Shareholding 
                   completion of        prior to          current    completion of           after 
Name of             the increase   completion of      increase in  the increase in   completion of 
shareholder of        in capital    the increase          capital          capital     increase in 
Datang Finance      contribution      in capital     contribution     contribution     the capital 
Company            (RMB million)    contribution    (RMB million)    (RMB million)    contribution
                                                                               
CDC                          885          55.31%            1,050            1,935          64.50%

The Company                  320           20.0%              280              600          20.00%
                                                                                
Huayin Electric
 Company                      40           2.50%               35               75           2.50%
                                                                               
Guiguan Electric 
 Company                      40           2.50%               35               75           2.50%
                                                                               
Other Existing 
 Shareholders                315          19.69%                0              315          10.50%
                                                                               
Total                      1,600         100.00%            1,400            3,000         100.00%



INFORMATION RELATING TO DATANG FINANCE COMPANY

Datang Finance Company is duly established in the PRC as a non-banking
financial institution. The registered capital of Datang Finance Company is
RMB1,600 million. The principal business of Datang Finance Company includes the
provision of, among others, deposit services, loan services, entrusted loan
services and entrusted investment services.

The net profits before and after taxation and extraordinary items for the year
ended 31 December 2009 of Datang Finance Company were RMB233,854,235.90 and
RMB176,880,227.22, respectively (the above-mentioned figures were audited). The
net profits before and after taxation and extraordinary items for the year
ended 31 December 2010 of Datang Finance Company were RMB310,290,933.67 and
RMB232,527,385.17, respectively (the above-mentioned figures were audited).

INFORMATION RELATING TO THE COMPANY

The Company is principally engaged in the development and operation of power
plants, sale of electricity and thermal power; repair and testing of power
equipment; as well as the provision of power-related technical services. The
main service areas of the Company are in the PRC.

INFORMATION RELATING TO CDC

CDC is a State-owned enterprise. Its scope of operations mainly includes the
development, investment, construction, operation and management of power
energy; organising production and sales of power (thermal) energy; as well as
the development of and consultation in connection with power technology.

INFORMATION RELATING TO HUAYIN ELECTRIC COMPANY

Huayin Electric Company is principally engaged in constructing and expanding
power plants, undertaking the construction of transmission and distribution of
electricity projects as well as their related ancillary facilities; the
generation and sale of electricity; as well as the production, processing and
sale of coal. The main service area of Huayin Electric Company is in the Hunan
Province of the PRC. CDC holds 33.34% of the issued shares of Huayin Electric
Company.

INFORMATION RELATING TO GUIGUAN ELECTRIC COMPANY

Guiguan Electic Company is principally engaged in the development, construction
and management of hydropower stations, coal-fired plants and the transmission
and distribution of electricity projects; provision of economic technical
consultation services on electricity finance; as well as the sale of general
machinery, electronic products and electronic equipment; as well as cooperating
with other entities in the development and management of other projects
relating to its principal business. CDC holds 50.51% of the issued shares of
Guiguan Electric Company.

INFORMATION RELATING TO OTHER EXISTING SHAREHOLDERS

The Other Existing Shareholders are the other nine existing shareholders of
Datang Finance Company (apart from the Company, CDC, Huayin Electric Company
and Guiguan Electric Company) and all of them are subsidiaries of CDC. The
principal businesses of the Other Existing Shareholders include electricity
business, provision of logistics services and sales of coal.

REASONS FOR AND BENEFITS OF THE INCREASE IN CAPITAL CONTRIBUTIONS IN DATANG
FINANCE COMPANY

Datang Finance Company is principally engaged in the provision of professional
financial services including centralised management of funds, settlement,
guarantee and entrusted deposit and loan within the system of CDC. A low
capital amount will limit the development of Datang Finance Company and its
external financing ability, as well as affecting its funds utilisation
efficiency and shareholders' returns. The increase in capital contributions in
Datang Finance Company and raising its capital amount will enhance its external
financing ability, advance its business expansion and increase its overall
profitability, thereby benefiting the shareholders of the Company.

In view of the above reasons and since Datang Finance Company is currently
regarded as an associated company in the accounts of the Company, the Directors
(including the independent non-executive Directors) are of the view that the
above-mentioned transaction is conducted in the ordinary and usual course of
business of the Company. The current transaction is fair and reasonable and is
in the interests of the Company and the shareholders as a whole.

CONNECTED TRANSACTION

As at the date of this announcement, CDC and its subsidiaries hold a total of
approximately 36.09% of the issued share capital of the Company and CDC is a
connected person of the Company under Chapter 14A of the Listing Rules.
Meanwhile, CDC holds 55.31% of the shares of Datang Finance Company, and Huayin
Electric Company and Guiguan Electric Company are subsidiaries of CDC and are
therefore connected persons of the Company. The increase in capital
contribution in Datang Finance Company constitutes a connected transaction of
the Company under the Listing Rules.

As one or more of the applicable percentage ratios (as defined in Rule 14.07 of
the Listing Rules) is more than 0.1% but less than 5%, the increase in capital
contribution in Datang Finance Company is only subject to the reporting and
announcement requirements under Chapter 14A of the Listing Rules and does not
require the approval by the independent shareholders of the Company under
Chapter 14A of the Listing Rules.

None of the Directors have any material interest in the transaction. Those
connected Directors, including Liu Shunda, Hu Shengmu and Fang Qinghai, who are
the principal management staff of CDC, have abstained from voting at the Board
meeting for approval of the relevant transaction in accordance with the
requirements of the listing rules of the Shanghai Stock Exchange.

DEFINITIONS

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

"A share(s)"                    the domestic ordinary share(s) of the Company  
                                with a nominal value of RMB1.00 each and are   
                                listed on the Shanghai Stock Exchange          
                                                                               
"Board"                         the board of Directors                         
                                                                               
"CBRC"                          China Banking Regulatory Commission            
                                                                               
"CDC"                           China Datang Corporation, a State-owned        
                                enterprise established under the laws of the   
                                PRC and a controlling shareholder of the       
                                Company pursuant to the Listing Rules which    
                                together with its subsidiaries own             
                                approximately 36.09% 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 Finance Company"        China Datang Finance Co., Ltd.                 
                                                                               
"Director(s) "                  the director(s) of the Company                 
                                                                               
"Guiguan Electric               Guangxi Guiguan Electric Power Co., Ltd.       
Company"                                                                       
                                                                               
"H Share(s)"                    the overseas listed foreign shares of the      
                                Company with a nominal value of RMB1.00 each,  
                                which are listed on the Stock Exchange and the 
                                London Stock Exchange                          
                                                                               
"Huayin Electric Company"       Datang Huayin Electric Power., Ltd.            
                                                                               
"Listing Rules"                 The Rules Governing the Listing of Securities  
                                on the Stock Exchange                          
                                                                               
"London Stock Exchange"         The London Stock Exchange Limited              
                                                                               
"Other Existing                 the nine existing shareholders of Datang       
Shareholders"                   Finance Company (apart from the Company, CDC,  
                                Huayin Electric Company and Guiguan Electric   
                                Company) prior to and after the completion of  
                                the increase in capital contributions in Datang
                                Finance Company, all being subsidiaries of CDC 
                                                                               
"PRC"                           the People's Republic of China                 
                                                                               
"RMB"                           Renminbi, the lawful currency of the PRC       
                                                                               
"Stock Exchange"                The Stock Exchange of Hong Kong Limited        
                                                                               
"%"                             per cent                                       

                                                          By Order of the Board
                                                                Zhou Gang
                                                         Secretary to the Board

Beijing, the PRC, 6 May 2011

As at the date of this announcement, the Directors of the Company are:
Liu Shunda, Hu Shengmu, Cao Jingshan, Fang Qinghai, Zhou Gang, Liu Haixia, Guan
Tiangang, Su Tiegang, Ye Yonghui, Li Gengsheng, Li Yanmeng*, Zhao Zunlian*, Li
Hengyuan*, Zhao Jie*, Jiang Guohua*

*Independent non-executive Directors