Adjustments In On-grid Tariffs

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong
Limited take no responsibility for the contents of thisannouncement, 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 thisannouncement.

              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                        

                                      AND                                      

                        INSIDE INFORMATION ANNOUNCEMENT                        

                                ANNOUNCEMENT ON                                

                        ADJUSTMENTS IN ON-GRID TARIFFS                         

This announcement is made by Datang International Power Generation Co., Ltd
(the "Company") pursuant to Part XIVA of the Securities and Futures Ordinance
(Cap 571 of the Laws of Hong Kong) and Rules 13.09(2)(a) and 13.10B of the
Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong
Limited.

The Company announces that it recently received the "NDRC's Notice on Further
Resolving the Conflicts in Environmental Protection Tariffs" (NDRC Prices
[2014] No. 1908) (the "Notice") issued by National Development and Reform
Commission ("NDRC"). In order to further resolve environmental protection
tariffs conflicts such as denitrification and dedusting of coal-fired power
generation enterprises, as well to equalise tariffs in some industrial and
commercial areas, the Notice was issued to make appropriate adjustments on the
level of the on-grid electricity tariffs.

According to the Notice, the details of downward adjustment on on-grid tariff
of the Company's major coal-fired power generating units are as follows:

  Regional/Cross-regional power transmission         Downward adjustment         
                                                  (RMB/kWh(tax-inclusive))    
                                                                               
Tianjin                                                     0.0054             
                                                                               
Hebei Province (Northern Grid)                              0.0087             
                                                                               
  Regional/Cross-regional power transmission         Downward adjustment       
                                                  (RMB/kWh (tax-inclusive))    
                                                                               
Shanxi Province                                             0.0115             
                                                                               
Shanxi Province Transmitted to Northern China               0.0070             
                                                                               
Western Area of Inner Mongolia Autonomous                   0.0120             
Region                                                                         
                                                                               
Western Area of Inner Mongolia Autonomous                   0.0070             
Region Transmitted to Northern China                                           
                                                                               
Liaoning Province                                           0.0098             
                                                                               
Gansu Province                                              0.0040             
                                                                               
Ningxia Hui Autonomous Region                               0.0090             
                                                                               
Fujian Province                                             0.0045             
                                                                               
Jiangxi Province                                            0.0317             
                                                                               
Guangdong Province                                          0.0120             
                                                                               
Yunnan Province                                             0.0000             
                                                                               
Jiangsu Province                                            0.0110             
                                                                               
Zhejiang Province                                           0.0110             
                                                                               
Chongqing                                                   0.0068             

The tariff adjustments abovementioned came into effect on 1 September 2014.
After the current on-grid tariff adjustments, the weighted average on-grid
tariffs for the installed capacity of the Company's coal-fired power generating
units will be decreased by approximately RMB0.00751/kWh (tax-inclusive).

                                                          By Order of the Board
                                                                Zhou Gang
                                                         Secretary to the Board

Beijing, the PRC, 29 September 2014

As at the date of this announcement, 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 Directors