Datang International Power Generation : ANNOUNCEMENT PROGRESS IN RELATION TO THE COMPLETION OF THE DISPOSAL OF COAL-TO-CHEMICAL BUSINESS SEGMENT AND PERFORMANCE OF GUARANTEE OBLIGATIONS

About this update from Datang International Power Generation Co., Ltd. Class A

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. (a sino-foreign joint stock limited company incorporated in the People's Republic of China) (Stock Code: 00991) ANNOUNCEMENT PROGRESS IN RELATION TO THE COMPLETION OF THE DISPOSAL OF COAL-TO-CHEMICAL BUSINESS SEGMENT AND PERFORMANCE OF GUARANTEE OBLIGATIONS Reference is made to the major and connected transaction announcement of Datang International Power Generation Co., Ltd. (the " Company " or " Datang Power ") dated 30 June 2016, the circular of the Company dated 12 August 2016 (the " Circular "), and the announcements of the Company dated 28 September 2016, 6 February 2017, 24 December 2018, 4 January 2019, 28 March 2019 and 15 October 2019 regarding the progress in relation to the disposal of the coal-to-chemical business segment and the performance of guarantee obligations. Unless otherwise defined, capitalized terms used in this announcement shall have the same meanings as defined in the Circular. The transaction under the Transfer Agreement was completed on 31 August 2016. As stated in the Circular, the Company will publish an announcement for any update on the status of the guarantee arrangement as set out in the Transfer Agreement as and when appropriate. As disclosed in the announcement of the Company dated 24 December 2018, the Company undertook the guarantee obligations in compliance with the guarantee contracts that were previously signed and still in effect, and made a payment of approximately RMB328 million in aggregate on behalf of the controlled subsidiaries of Zhongxin Energy and Chemical on 21 December 2018. Thereafter, as disclosed in the announcement of the Company dated 4 January 2019, the Company proactively sought repayment from Zhongxin Energy and Chemical. - 1 - On 31 December 2019, Zhongxin Energy and Chemical has repaid the aforesaid amount to the Company. By Order of the Board Jiang Jinming Company Secretary Beijing, the PRC, 2 January 2020 As at the date of this announcement, the directors of the Company are: Chen Feihu, Wang Sen, Wang Xin, Liang Yongpan, Ying Xuejun, Zhu Shaowen, Cao Xin, Zhao Xianguo, Zhang Ping, Jin Shengxiang, Liu Jizhen*, Feng Genfu*, Luo Zhongwei*, Liu Huangsong*, Jiang Fuxiu* Independent non-executive directors - 2 -

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