Announcement on Progress in Major Investment

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 content 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 Sichuan Daduhe Huangjinping Hydropower Station Project (the "Huangjinping 
Hydropower Station"), which is controlled (70%), organized, constructed and operated by 
Datang International Power Generation Co., Ltd. (the "Company"), has recently been approved 
by the National Development and Reform Commission.

The Huangjinping Hydropower Station is designed to be equipped with four 200MW vertical 
radial axial-flow hydroturbine units and two 25MW hydroturbine units with a total capacity of 
850MW. The construction of the Huangjinping Hydropower Station promotes a rational 
exploration and utilisation of water resources in the trunk river of Daduhe, and enhances the 
overall efficiency of developing the Daduhe basin cascade, thereby increasing the power 
supply to the Sichuan Power Grid so as to meet the increasing power demand and promote the 
economic and social development of ethnic regions. The completion of the Huangjinping 
Hydropower Station will also increase the Company's installed hydropower capacity, further 
optimising the Company's power generation structure and enhancing the core competitiveness 
of the Company. 

The total investment of the Huangjinping Hydropower Station amounts to approximately 
RMB11.768 billion, of which equity capital of the project accounts for 20% of the total 
investment, i.e., approximately RMB2.354 billion, which is to be contributed proportionally by 
the Company and other shareholders in cash. Construction funds other than the equity capital 
of the project are to be funded from bank loans.


                                                                   By Order of the Board
                                                                               Zhou Gang     
                                                                  Secretary to the Board 


Beijing, the PRC, 17 March 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