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Limited take no responsibility for the contents of this notice, make no
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the whole or any part of the contents of this notice.


                DATANG INTERNATIONAL POWER GENERATION CO., LTD.

        (a sino-foreign joint stock limited company incorporated in the
                         People's Republic of China)
                             (Stock Code: 00991)

                             SUPPLEMENTAL NOTICE OF
                    2014 FIRST EXTRAORDINARY GENERAL MEETING

Reference is made to the Notice of 2014 First Extraordinary General Meeting
(the "EGM") of Datang International Power Generation Co., Ltd. (the "Company")
dated 9 December 2013 (the "EGM Notice").

After the date of the EGM Notice, the board of directors of the Company (the
"Board") received from its controlling shareholder, China Datang Corporation
("CDC"), a proposal letter for adding additional resolution for the
consideration and approval by the shareholders of the Company (the
"Shareholders") at the EGM. Details of the proposal are as follows:

Since the "Resolution on the Adjustments of Directors of the Company" was
considered and approved at the sixth meeting of the eighth session of the
Board, it is proposed to be considered and approved as ordinary resolution by
the Shareholders at the EGM.

SUPPLEMENTAL NOTICE IS HEREBY GIVEN that the EGM of the Company will be held
at the function room of 5/F, Intercontinental Hotel, No. 11 Financial Street,
Xicheng District, Beijing, the People's Republic of China (the "PRC") on 24
January 2014 (Friday) at 9:00 a.m. to consider and, if thought fit, pass the
following ordinary resolution:

                            ORDINARY RESOLUTION


4.  To consider and approve the "Resolution on the Adjustments of Directors of
    the Company" (Note 2)

    (1)  To consider and approve Mr. Wu Jing to hold the office as an executive
         director of the eighth session of the Board

    (2)  To consider and approve Mr. Cao Jingshan to cease to hold the office
         as a director of the eighth session of the Board

                                                     By Order of the Board
                                                           Zhou Gang
                                                     Secretary to the Board

Beijing, the PRC 7 January 2014

Notes:

1.  Save as the additional resolutions and other information as set out in this
    Supplemental Notice of 2014 First Extraordinary General Meeting, all the
    information set out in the EGM Notice remains unchanged.

2.  As a result of work adjustment, Mr. Cao Jingshan will no longer hold the
    office as a Director of the Company, the replacement of Mr. Cao Jingshan
    by Mr. Wu Jing as a Director of the eighth session of the Board was
    proposed to be tabled to the general meeting for Shareholders'
    consideration and approval.

    Biography of Mr. Wu Jing:

    Mr. Wu Jing, aged 56, is a professor-grade senior engineer who holds a
    post-graduate degree. He is currently President and deputy Party Committee
    Secretary of the Company. He served as the Deputy Chief of the maintenance
    division, Deputy Chief of biological technology division, Assistant to
    General Engineer, Deputy General Engineer and Deputy Chief of Han Cheng
    Power Plant; Deputy Chief and Chief of Weihe Power Plant; Deputy Chief of
    Weihe Power Generation Company Limited and Chief of Weihe Power Plant;
    Party Committee Member and Vice President of Xinjiang Electric Power
    Corporation; Party Committee Member and Deputy General Manager of Shaanxi
    Electric Power Corporation; the Chief of the Development and Planning
    Department, Deputy Chief Economist and the Chief of the Development and
    Planning Department, and Chief Economist of CDC. Mr. Wu is also a director
    of China Datang Corporation Renewable Power Co., Limited, a company listed
    on The Stock Exchange of Hong Kong Limited (the "Stock Exchange") (Stock
    code: 01798). Mr. Wu has long been involved in power generation and
    economic management. He has extensive experience in management of power
    generation and enjoys special government allowances by the State Council.

    The term of office of Mr. Wu Jing, if elected, will commence on the date
    of approval of his appointment by the Shareholders at the EGM to the
    expiration of the term of the eighth session of the Board (i.e. 30 June
    2016). Mr. Wu will not be entitled to any remuneration by being a director
    of the Company. As at the date of this notice, Mr. Wu Jing does not have
    any interest in the shares of the Company within the meaning of Part XV of
    the Securities and Futures Ordinance. He has not been subject to any
    public sanctions by statutory or regulatory authority.

    Save as disclosed above, Mr. Wu has not held any directorships in any
    public listed companies in the past three years and has no relationship
    with any directors, senior management, substantial or controlling
    Shareholders (as defined in the Rules Governing the Listing of Securities
    on the Stock Exchange (the "Listing Rules")). Save as disclosed above,
    there are no other matters concerning the proposed appointment of Mr. Wu
    that need to be brought to the attention of the Shareholders and the Stock
    Exchange and there are no other matters which shall be disclosed pursuant
    to Rule 13.51(2) (h) to (v) of the Listing Rules.

3.  Other Matters

    (1)  Each of the holders of H shares entitled to attend and vote at the
         EGM, is entitled to appoint one or more proxies to attend and vote on
         his/her behalf at the meeting. A proxy need not be a shareholder of
         the Company.

    (2)  If holders of H shares have appointed more than one proxy to attend
         the EGM, the proxies can only exercise their voting rights by way of
         poll.

    (3)  To be valid, holders of H shares must deliver the Revised Proxy Form
         (as define below), and if such revised proxy form is signed by a
         person on behalf of the appointer pursuant to a power of attorney or
         other authority, a notarised copy of that power of attorney or other
         authority, to the Company's H share registrar, Computershare Hong
         Kong Investor Services Limited at 17M Floor, Hopewell Centre, 183
         Queen's Road East, Wanchai, Hong Kong, in not less than 24 hours
         before the time scheduled for holding the EGM.

    (4)  A revised proxy form for use at the EGM (the "Revised Proxy Form") is
         published on the websites of The Stock Exchange of Hong Kong Limited
         (www.hkexnews.hk) and the Company (www.dtpower.com). The Revised
         Proxy Form shall supersede and replace the proxy form enclosed with
         the EGM Notice dated 9 December 2013 (the "Previous Proxy Form") and
         that the Previous Proxy Form shall be invalid. Shareholders who have
         signed and returned the Previous Proxy Form should complete and
         return the Revised Proxy Form in accordance with the instructions
         provided in this Supplemental Notice of 2014 First Extraordinary
         General Meeting. Completion and return of the Revised Proxy Form will
         not preclude a Shareholder from attending and voting at the EGM in
         person.

    (5)  The EGM is expected to last for an hour. Attending shareholders and
         their proxies shall be responsible for their own travel and
         accommodation expenses.

The Company's office address:

No. 9 Guangningbo Street, Xicheng District,
Beijing, the PRC Postcode: 100033
Telephone: (8610) 8800 8669 or (8610) 8800 8682
Fax: (8610) 8800 8672

As at the date of this supplemental notice, the directors of the Company are:

Chen Jinhang, Hu Shengmu, Cao Jingshan, Fang Qinghai, Zhou Gang, Li Gengsheng,
Cao Xin, Cai Shuwen, Liu Haixia, Guan Tiangang, Dong Heyi*, Ye Yansheng*,
Li Hengyuan*, Zhao Jie*, Jiang Guohua*

*  Independent non-executive director