Supplemental Notice of 2014 Fourth EGM

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responsibility for the contents of this notice, 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 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 FOURTH EXTRAORDINARY GENERAL MEETING

Reference is made to the Notice of 2014 Fourth Extraordinary General Meeting (the "EGM") of 
Datang International Power Generation Co., Ltd. (the "Company") dated 12 September 2014 
(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 fourteenth meeting of the eighth session of the Board, it is proposed to be 
considered and approved as an additional 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 30 October 2014 (Thursday) at 9:30 a.m. to consider 
and, if thought fit, pass the following ordinary resolution:

ORDINARY RESOLUTION

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

(1) Mr. Liang Yongpan to hold the office as a Non-executive director of the eighth session of 
    the Board

(2) Mr. Fang Qinghai to cease to hold the office as a Non-executive director of the eighth 
    session of the Board

                                                                      By Order of the Board
                                                                           Zhou Gang
                                                                     Secretary to the Board

Beijing, the PRC, 10 October 2014
 
Notes:
1. Save as the additional resolution and other information as set out in this Supplemental 
   Notice of 2014 Fourth Extraordinary General Meeting, all the information set out in the EGM 
   Notice remains unchanged.

2. As a result of work adjustment, Mr. Fang Qinghai will no longer hold the office as a 
   Non-executive director of the Company, the replacement of Mr. Fang Qinghai by Mr. Liang Yongpan 
   as a Non-executive director of the eighth session of the Board was proposed to be tabled to 
   the general meeting for Shareholders' consideration and approval.

   Mr. Fang Qinghai confirms that he has no disagreement with the Board and there are no matters 
   relating to his resignation that needs to be brought to the attention of the Shareholders and 
   The Stock Exchange of Hong Kong Limited (the "Stock Exchange").

   Biography of Mr. Liang Yongpan:
   Liang Yongpan, aged 48, a senior engineer graduated from the university. Mr. Liang served as 
   the Deputy Division Head and Deputy Plant Head (Production) of the Production Division of 
   Lanzhou No. 2 Thermal Power Factory, General Manager of Lanzhou Xigu Thermal Power Co. Ltd., 
   Member of Party Committee, Vice General Manager and Chairman of the Labour Union of Gansu 
   branch of China Datang Corporation and Datang Gansu Power Generation Co., Ltd., Deputy Head 
   of Planning, Investment and Financing Department of China Datang Corporation, as well as the 
   Secretary of Party Committee and General Manager of Datang Gansu Power Generation Co., Ltd. 
   Since May 2014, he served as the Head of Planning and Marketing Department of China Datang 
   Corporation. Mr. Liang has long been involved in the production, operation and management 
   work of power generation enterprises. He has extensive experience in production, operation 
   and management of power generation companies.

   The term of office of Mr. Liang Yongpan, 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. Liang will not be entitled to any 
   remuneration by being a director of the Company. As at the date of this notice, 
   Mr. Liang Yongpan 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. Liang 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. Liang 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 12 September 2014 (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 Fourth 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: [phone] or (8610) 8800 8682
Fax: [phone]

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

Chen Jinhang, Hu Shengmu, Wu Jing, Fang Qinghai, 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 director