Adjustments of Electricity Tariffs

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


                 DATANG INTERNATIONAL POWER GENERATION CO., LTD.
                                                                               
   (a sino-foreign joint stock limited company incorporated in the People's    
                     Republic of China)(Stock Code: 00991)                     

                            PRICE-SENSITIVE INFORMATION/
                       OVERSEAS REGULATORY ANNOUNCEMENT                        

                                Announcement on                                
                      Adjustments of Electricity Tariffs                      

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 Rules 13.09(1) and 13.09(2) of the Rules
Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

Datang International Power Generation Co., Ltd. (the "Company") has recently
received a notification from the National Development and Reform Commission
(the "NDRC") in relation to the adjustments of electricity tariffs. With an aim
to appropriately relieve the irrationality of electricity tariffs, ensure power
supply, support the development of renewable energy and enhance energy
conservation and emissions reduction, the State has decided to appropriately
adjust the electricity tariff standards.

Pursuant to the relevant documents of the NDRC, the adjustments of electricity
tariffs (inclusive of tax) for the wholly-owned and controlled power generation
enterprises of the Company are set out below:


Power plant/company                 On-grid              On-grid        Growth 
                                   electricity          electricity             
                                  tariff before        tariff after      (RMB/ 
                                   adjustments          adjustments       MWh)
                                    (RMB/MWh)            (RMB/MWh) 

                                                                               
Dou He Power Plant                   418.00               445.10         27.10 
                                                                               
Zhang Jia Kou Power Plant            409.94               437.04         27.10 
                                                                               
Xia Hua Yuan Power Plant             418.00               445.10         27.10 
                                                                               
Gao Jing Thermal Power Plant         425.30               460.30         35.00 
                                                                               
Tianjin Datang International         388.60               416.60         28.00 
  Panshan Power Generation                                                       
  Company Limited                                                                
                                                                               
Hebei Datang International           401.30               424.30         23.00 
  Tangshan Thermal Power                                                  
  Company Limited                                                                        
                                                                               
Hebei Datang International           401.30               424.30         23.00 
  Wangtan Power Generation                                                       
  Company Limited                                                                
                                                                               
Hebei Datang International           401.30               424.30         23.00 
  Zhangjiakou Thermal Power                                                      
  Generation Company Limited                                                     
                                                                               
Hebei Datang International           401.30               424.30         23.00 
  Fengrun Thermal Power                                                   
  Company Limited                                                                        
                                                                               
Qian'an Datang Thermal Power         401.30               424.30         23.00 
  Generation Company Limited                                                     
                                                                               
Inner Mongolia Datang                350.00               373.10         23.10 
  International Tuoketuo Power                                                   
  Generation Company Limited                                                     
                                                                               
Inner Mongolia Datang                350.00               373.10         23.10 
  International Tuoketuo No.2                                                    
  Power Generation Company                                                       
  Limited                                                                        
                                                                               
Shanxi Datang International          356.00               386.60         30.60 
  Shentou Power Generation                                                       
  Company Limited                                                                
                                                                               
Shanxi Datang International          358.57               388.07         29.50 
  Yungang Thermal Power Company                                                  
  Limited                                                                        
                                                                               
Shanxi Datang International          356.20               385.70         29.50 
  Yuncheng Power Generation                                                      
  Company Limited                                                                
                                                                               
Shanxi Datang International          356.20               385.70         29.50 
  Linfen Thermal Power Company                                                   
  Limited                                                                        
                                                                               
Guangdong Datang International       498.00               521.00         23.00 
  Chaozhou Power Generation                                                      
  Company Limited                                                                
                                                                               
Fujian Datang International          417.40               444.80         27.40 
  Ningde Power Generation                                                 
  Company Limited                                                                        
                                                                               
Ningxia Datang International         270.20               288.60         18.40 
  Daba Power Generation                                                   
  Company Limited                                                                        
                                                                               
Yunnan Datang International          334.60               360.60         26.00 
  Honghe Power Generation                                                 
  Company Limited                                                                        
                                                                               
Jiangxi Datang International         479.20               516.20         37.00 
  Xinyu Power Generation                                                  
  Company Limited                                                                        
                                                                               
Liaoning Datang International        392.20               414.20         22.00 
  Jinzhou Thermal Power                                                          
  Generation Company Limited                                                     
                                                                               
Zhejiang Datang International        437.00               467.00         30.00 
  Wushashan Power Generation                                                     
  Company Limited                                                                
                                                                               
Jiangsu Datang International         430.00               455.00         25.00 
  Lvsigang Power Generation                                                      
  Company Limited                                                                
                                                                               
Gansu Datang International           308.30               334.30         26.00 
  Liancheng Power Generation                                                     
  Company Limited                                                                
                                                                               
Yunnan Datang International          222.00               240.00         18.00 
  Wenshan Hydropower Development                                                 
  Company Limited (Malutang 
  Phase 2)                                                                             
                                                                               
Chongqing Datang International       300.00               320.00         20.00 
  Pengshui Hydropower 
  Development Company Limited                                                                
                                                                               
Chongqing Datang International       310.00               330.00         20.00 
  Wulong Hydropower Development                                                  
  Company Limited                                                                
                                                                               
Chongqing Mayandong Hydropower       310.00               320.00         10.00 
  Development Company Limited*                                                   
                                                                               
Chongqing Yujiankou Hydropower       300.00               320.00         20.00 
  Company Limited*                                                               
                                                                               
Tengzigou Hydropower Plant of        300.00               320.00         20.00 
  Chongqing Longtai Power 
  Company Limited*    
                                                                   

* Chongqing Mayandong Hydropower Development Company Limited, Chongqing
Yujiankou Hydropower Company Limited and Tengzigou Hydropower Plant of
Chongqing Longtai Power Company Limited are hydropower enterprises of Yuneng
(Group) Company Limited, which is a wholly-owned subsidiary of the Company.


With an aim to encourage coal-fired power generation enterprises to achieve the
requirements on denitrification, a trial electricity tariff of denitrification
under a trial tariff standard of RMB0.008/kWh will be implemented on the
coal-fired power generation enterprises of the Company located in Beijing City,
Hebei Province, Shanxi Province and Zhejiang Province, which have installed and
operated denitrification facilities and were examined and accepted as qualified
by the national or provincial environmental protection departments, upon
examination and approval by provincial tariff department.

The aforesaid electricity tariff adjustments have been implemented since 1
December 2011. After such adjustments on the on-grid electricity tariffs, the
weighted average on-grid electricity tariffs for capacities of the Company's
coal-fired units with tariff adjustments will increase by approximately
RMB25.92/MWh, representing an increase of approximately 6.50%; and the weighted
average on-grid electricity tariffs for capacities of the Company's hydropower
units with tariff adjustments will increase by approximately RMB19.57/MWh,
representing an increase of approximately 6.64%.


                                                          By Order of the Board
                                                                Zhou Gang
                                                         Secretary to the Board


Beijing, the PRC, 2 December 2011

As at the date of this announcement, the Directors of the Company are:Liu
Shunda , Hu Shengmu, Cao Jingshan, Fang Qinghai, Zhou Gang, Liu Haixia, Guan
Tiangang, Su Tiegang, Ye Yonghui, Li Gengsheng, Li Yanmeng*, Zhao Zunlian*, 
Li Hengyuan*, Zhao Jie* and Jiang Guohua*


* Independent non-executive Directors