Estimated Increase in Profit for the 2009 Annua...

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)

             PRICE-SENSITIVE INFORMATION/ OVERSEAS REGULATORY ANNOUNCEMENT

              ESTIMATED INCREASE IN PROFIT FOR THE ANNUAL RESULTS OF 2009

    Special Notice:

    This announcement is made by Datang International Power Generation Co.,
Ltd. (the "Company") pursuant to the requirements of Rules 13.09(1) and 13.09
(2) of the Rules Governing the Listing of Securities on The Stock Exchange of
Hong Kong Limited to provide shareholders of the Company and the public with
the financial information of the Company. This announcement is also
disseminated on the Shanghai Stock Exchange simultaneously. The estimates
referred to in this announcement are only preliminary estimates made by the
Company and have not been audited by any certified public accountants. Detailed
financial information of the Company will be disclosed in the 2009 annual
report of the Company. Investors are advised to exercise caution when dealing
in the shares of the Company.

    The Company and all members of the board of directors (the "Board") 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.

    I. Estimated results for the reporting period

    1. Period to which the estimated results applies: From 1 January 2009 to 31
December 2009.

    2. Estimated results: As estimated by the finance department of the
Company, net profit attributable to the equity holders of the Company as
reported on the consolidated statements of the Company for year 2009 is
expected to increase by more than 120% as compared with the net profit
attributable to the equity holders of the Company for the corresponding period
of the previous year (restated).

    3. The figures of the estimated results have not been audited by any
certified public accountants.

    II. Results of the corresponding period of the previous year

    1. Net profit attributable to the equity holders of the Company as reported
in the consolidated statements (restated): Approximately RMB637,951,000.

    2. Earnings per share: RMB0.05 per share.

    III. Reasons for the change in the results

    The main reason for the significant surge in the results for the reporting
period is due to the increase of average on-grid tariffs and the decrease of
unit fuel cost of the Company.

    IV. Risk warning

    The Company will disclose the financial information in details in its 2009
annual report. Investors are advised to exercise caution when dealing in the
shares of the Company.

                                                           By Order of the Board

                                                                  Zhou Gang    

                                                          Secretary to the Board


Beijing, the PRC, 29 January 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