Announcement on Progress in Major Investment

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                  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 "Listing 
Rules").                                                                       

The Phase 1 of Liaoning Xudabao Nuclear Power Project (the "Xudabao Nuclear
Project Phase 1"), in which Datang International Power Generation Co., Ltd.
(the "Company") has 20% investment interest, has recently received a reply from
the National Development and Reform Commission approving the commencement of
the preliminary works for the project.

Liaoning Xudabao Nuclear Project is located at the southern part of Xudabao
Village, Haibin County, Xing Cheng City under the Huludao Municipality.
According to the plan of having six 1,000 MW units, the Xudaobao Nuclear
Project Phase 1 is planned to construct two 1,000 MW pressurised nuclear
reactor units.

The proactive development of nuclear power aligns with the direction of the
State's energy development during the Twelve Five-Year Plan period. The
construction of the Xudabao Nuclear Project Phase 1 is beneficial for
optimising the Company's structure of power source, and satisfies the future
needs in power consumption for northeastern China and Liaoning Province. The
Company's investment in the development of the Xudabao Nuclear Project Phase 1
is a move towards implementing the Company's development strategy of "actively
developing nuclear power", cultivating new income bases of the Company, and
deploying key strategies for the Company's sustainable development. Upon
completion of the project, the Company's attributable installed capacity in
nuclear power will also increase and the Company's structure of power source
will be further optimised, thereby enhancing the Company's core
competitiveness.

The project capital for the Xudabao Nuclear Project Phase 1 represents 20% of
its total investment, which will be contributed by China National Nuclear
Corporation, the Company and other shareholders in the proportions of 50%, 20%
and 30%, respectively. Save as the project capital, other funding will be
financed from bank borrowings. Upon fulfillment of the Xudabao Nuclear Project
Phase 1 conditions, the application for approval of the project pursuant to the
relevant authorities will be submitted.

                                                          By Order of the Board
                                                                Zhou Gang
                                                         Secretary to the Board

Beijing, the PRC, 13 January 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