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    Limited take no responsibility for the contents of this announcement, make no
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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: 00991)

    OVERSEAS REGULATORY ANNOUNCEMENT

                              ANNOUNCEMENT ON RESOLUTIONS                          
                               OF THE BOARD OF DIRECTORS                           

    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 13.10B of the Rules Governing the
    Listing of Securities on The Stock Exchange of Hong Kong Limited (the "Hong
    Kong Stock Exchange").

    The twenty-fourth meeting (the "Meeting") of the eighth session of the Board of
    Datang International Power Generation Co., Ltd. ("Datang Power" or the
    "Company") was conducted by way of written resolution on 29 July 2015
    (Wednesday). There were 15 Directors eligible for attending the Meeting and 15
    of them attended the Meeting. The Meeting was held in compliance with the
    provisions stipulated in the "Company Law" and the "Articles of Association of
    Datang International Power Generation Co., Ltd." and was lawful and valid. The
    following resolutions were approved unanimously by the attending Directors at
    the Meeting:

    1. The "Resolution on the Investment in and Construction of New Liaoning Datang
    International Huludao Cogeneration Plant 'Replacing Small Capacity Units with
    Larger Ones'" Project was considered and approved

    Voting results: 15 voted in favour, 0 voted against and 0 abstained

    (1) Agreed that the Company to contribute RMB702.858 million, representing 20%
    of total investment of the project, to establish a project company, which would
    in turn solely construct the new Liaoning Datang International Huludao
    Cogeneration Plant "replacing small capacity units with larger ones" project
    ("Huludao Cogeneration Project");

    (2) Huludao Cogeneration Project is situated in Beigang Industrial Park,
    Huludao City, Liaoning Province with a construction scale of two 350MW
    ultra-supercritical stream extraction heat supply units. Huludao Cogeneration
    Project received the reply of approval from the Development and Reform
    Commission of Liaoning Province on 8 July 2015. The total investment of the
    project is approximately RMB3,514.29 million and the capital of the project is
    RMB702.858 million, representing 20% of total investment of the project, while
    the remaining project construction capital would be settled by way of bank
    loans;

    (3) The Directors (including the independent Directors) were of the view that
    the capital contribution for the construction of Huludao Cogeneration Project
    would be beneficial to the optimisation of the power source structure of the
    Company, the consolidation of its development in Liaoning region as well as the
    strengthening of its profitability, and the construction of the project was in
    the interests of the Company and shareholders as a whole.

    2. The "Resolution on the Investment in and Construction of Hebei Datang
    International Tangshan Beijiao Cogeneration Project" was considered and
    approved

    Voting results: 15 voted in favour, 0 voted against and 0 abstained

    (1) Agreed that the Company to contribute RMB638.098 million, representing 20%
    of total investment of the project, to establish a project company, which would
    in turn solely construct the Hebei Datang International Tangshan Beijiao
    Cogeneration Project ("Tangshan Beijiao Cogeneration Project");

    (2) Tangshan Beijiao Cogeneration Project is situated in Kaiping District,
    Tangshan City with a construction scale of two 350 MW ultra-supercritical
    coal-fired heat supply units. Tangshan Beijiao Cogeneration Project received
    the reply of approval from the Development and Reform Commission of Hebei
    Province on 3 June 2015. The total investment of the project is approximately
    RMB3,190.49 million and the capital of the project is RMB638.098 million,
    representing 20% of total investment of the project, while the remaining
    project construction capital would be settled by way of bank loans;

    (3) The Directors (including the independent Directors) were of the view that
    the capital contribution for the construction of Tangshan Beijiao Cogeneration
    Project would be beneficial to the enhancement of power utilisation efficiency,
    protection of local environment, satisfaction of the demand for centralised
    heat supply in Tangshan region, increase the Company's market share in Tangshan
    region as well as the strengthening of its profitability, and the construction
    of the project was in the interests of the Company and shareholders as a whole.

                                                              By Order of the Board
                                                                          Zhou Gang
                                                             Secretary to the Board

    Beijing, the PRC, 29 July 2015

    As at the date of this announcement, the Directors of the Company are:
    Chen Jinhang, Hu Shengmu, Wu Jing, Liang Yongpan, Zhou Gang,
    Cao Xin, Cai Shuwen, Liu Haixia, Guan Tiangang, Yang Wenchun,
    Dong Heyi*, Ye Yansheng*, Zhao Jie*, Jiang Guohua*, Feng Genfu*

    * Independent non-executive Directors