Announcement on Progress in Major Investment

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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 hereby announces that the Sichuan Daduhe Changheba Hydropower Station
Project (the "Changheba Hydropower Station"), which is controlled, 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 Changheba Hydropower Station is designed to be equipped with four 650MW
radial-axial flow hydroturbine units with a total capacity of 2,600MW. The
construction of the Changheba Hydropower Station promotes a rational
exploration and utilisation of water resources in the trunk river of Daduhe,
thereby enhancing the power supply of the Sichuan Power Grid so as to meet the
increasing power demand. It also promotes the West-to-East transmission of
electricity and the economic and social development of ethnic regions. The
completion of the Changheba Hydropower Station will also increase the Company's
installed hydropower capacity, further optimising the Company's power source
mix and enhancing the core competitiveness of the Company.

The total investment of the Changheba Hydropower Station, is to be contributed
proportionally by the Company and other shareholders in cash, amounts to
RMB21.905 billion, of which the capital of the project amounts to RMB4.381
billion, accounting for 20% of the total investment. The construction funds
other than the capital of the project are to be sourced from bank loans.

                                                         By Order of the Board
                                                               Zhou Gang
                                                         Secretary to the Board

Beijing, the PRC, 16 November 2010

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