Supplemental Notice of 2012 Third EGM

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong 
Kong Limited take no 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
              2012 THIRD EXTRAORDINARY GENERAL MEETING


Reference is made to the Notice of 2012 Third Extraordinary General 
Meeting of Datang International Power Generation Co., Ltd. (the 
"Company") dated 1 November 2012 (the "EGM Notice").

After the date of the Notice of 2012 Third Extraordinary General 
Meeting, the board of directors of the Company (the "Board") received 
from its controlling shareholder, China Datang Corporation ("CDC"), a 
proposal letter for adding an additional resolution for the 
consideration and approval by the shareholders of the Company (the 
"Shareholders") at the 2012 Third Extraordinary General Meeting (the 
"EGM"). Details of the proposal are as follows:

The "Resolution on the Provision of Guarantee for the Financing of 
Ningxia Datang International Qingtongxia Wind Power Limited", is 
proposed to be considered and approved as ordinary resolution by the 
Shareholders at the EGM after being considered and approved at the 
thirty-first meeting of the seventh session of the Board.

SUPPLEMENTAL NOTICE IS HEREBY GIVEN that the EGM of the Company will be 
held at the meeting room no. 1608, head office of the Company, No. 9 
Guangningbo Street, Xicheng District, Beijing, the People's Republic of 
China (the "PRC") on 18 December 2012 (Tuesday) at 9:00 a.m. to consider 
and, if thought fit, pass the following ordinary resolution:


                          ORDINARY RESOLUTION


2.   To consider and approve the "Resolution on the Provision of 
     Guarantee for the Financing of Ningxia Datang International 
     Qingtongxia Wind Power Limited". (Note 2)


                                                 By Order of the Board
                                                        Zhou Gang
                                                Secretary to the Board

Beijing, the PRC
22 November 2012



Notes:

1.   Save as the additional resolution and other information as set out 
     in this Supplemental Notice of 2012 Third Extraordinary General 
     Meeting, all the information set out in the EGM Notice remains 
     unchanged. 

2.   The Company proposed to provide a guarantee with joint liability, 
     in an amount of not exceeding RMB299.82 million, for the borrowing 
     of Ningxia Datang International Qingtongxia Wind Power Limited 
     ("Qingtongxia Wind Power Company"), a wholly-owned subsidiary of
     the Company. Since the asset-liability ratio of Qingtongxia Wind 
     Power Company is over 70%, such provision of guarantee is required
     to be tabled to the EGM for Shareholders' consideration and 
     approval pursuant to the Listing Rules of the Shanghai Stock
     Exchange. Please refer to the announcement of the Company on the
     same day for details of the provision of guarantee.

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 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 of 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 (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 2012 Third 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]
Fax: [phone]


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

Liu Shunda, Hu Shengmu, Cao Jingshan, Fang Qinghai, Zhou Gang, 
Liu Haixia, Guan Tiangang, Mi Dabin,  Ye Yonghui, Li Gengsheng, 
Li Yanmeng*, Zhao Zunlian*, Li Hengyuan*, Zhao Jie*, Jiang Guohua*

* Independent non-executive directors