Overseas Regulatory Announcement

Hong Kong Exchanges and Clearing Limited and The Stock Exchange ofHong Kong Limited take no responsibility for the contents of thisannouncement, make no representation as to its accuracy or completenessand expressly disclaim any liability whatsoever for any loss howsoeverarising from or in reliance upon the whole or any part of the contentsof 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) OVERSEAS REGULATORY ANNOUNCEMENT ANNOUNCEMENT ON ISSUANCE OF SUPER SHORT-TERM DEBENTURES Special Notice: The board of directors (the "Board") and all directors (the "Directors")of the Company warrant that there are no false representations andmisleading statements contained in, or material omissions from, thisannouncement, and severally and jointly accept the responsibility forthe truthfulness, accuracy and completeness of the contents of thisannouncement. This announcement is made pursuant to Rule 13.10(B) of the RulesGoverning the Listing of Securities on The Stock Exchange of Hong KongLimited. As resolved at the 2011 fourth extraordinary general meeting (the "EGM")of Datang International Power Generation Co., Ltd. (the "Company") heldon 6 December 2011, the Company was approved to apply to the NationalAssociation of Financial Market Institutional Investors (the "NAFMII")for registering the issue limit of the super short-term debentures witha principal amount of not exceeding RMB10 billion within a period of 12months from the date of approval at the EGM and which are to be issuedin tranches within the effective period of the registration. On 24 May2012, the Company received a "Notification on Acceptance of Registration"(Zhong Shi Xie Zhu [2012] SCP No.6) from the NAFMII confirming theacceptance of registration of the Company's super short-term debentures. The Company has completed the issuance of "The Second Tranche of DatangInternational Power Generation Co., Ltd.'s Super Short-term Debenturesin 2013" (the "Second Tranche Super Short-term Debentures") on 19 July2013. The issuance amount for the Second Tranche Super Short-term Debentureswas RMB3 billion with a maturity of 270 days. The unit nominal valueis RMB100 and the issuance interest rate is at 4.30%. China Development Bank Corporation and Bank of Communication Co., Ltd.act as the joint lead underwriters for the Second Tranche SuperShort-term Debentures. The proceeds from the Second Tranche SuperShort-term Debentures will be used by the Company to replace part of thebank loans of the Company, to adjust Company's debt structure, to lowerits financing costs and replenish the working capital of the Company. By Order of the Board Zhou Gang Secretary to the Board Beijing, the PRC, 23 July 2013 As at the date of this announcement, the Directors of the Company are:Chen Jinhang, Hu Shengmu, Cao Jingshan, Fang Qinghai, Zhou Gang, Liu Haixia,Guan Tiangang, Cao Xin, Cai Shuwen, Li Gengsheng, Dong Heyi*, Ye Yansheng*,Li Hengyuan*, Zhao Jie*, Jiang Guohua** Independent non-executive Directors