Datang International Power Generation Co., Ltd. — Proxy Solicitation & Information Statement 2026

Mar 9, 2026

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大唐国际发电股份有限公司

DATANG INTERNATIONAL POWER GENERATION CO., LTD.

(a sino-foreign joint stock limited company incorporated in the People's Republic of China)

(Stock Code: 00991)

NOTICE OF 2026 FIRST EXTRAORDINARY GENERAL MEETING

NOTICE IS HEREBY GIVEN that the 2026 first extraordinary general meeting (the “EGM”) of Datang International Power Generation Co., Ltd. (“Datang Power” or the “Company”) will be held at 1616 Conference Room, Datang International Power Generation Co., Ltd., No. 9 Guangningbo Street, Xicheng District, Beijing, the People’s Republic of China (the “PRC”) at 10:00 a.m. on 27 March 2026 (Friday) to consider and, if thought fit, pass the following resolution:

ORDINARY RESOLUTION

1. To consider and approve the Resolution on the Provision of Financial Assistance to a Joint Venture (Note 1)

CLOSURE OF THE REGISTER OF MEMBERS OF THE COMPANY

Holders of H-shares of the Company (the “H Shareholders”) should note that, pursuant to the Articles of Association of the Company, the register of members of the Company will be closed from 24 March 2026 (Tuesday) to 27 March 2026 (Friday) (both dates inclusive), during which period no transfer of any H-shares of the Company will be registered. H Shareholders whose names appear on the register of members of the Company on 24 March 2026 (Tuesday) are entitled to attend and vote at the EGM. In order to be entitled to the attendance of the EGM, H Shareholders are required to deliver the transfer document together with the relevant share certificates to the H-share registrar of the Company, Computershare Hong Kong Investor Services Limited, at Shops 1712-1716, 17th Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong at or before 4:30 p.m. on 23 March 2026 (Monday).

By order of the Board

Sun Yanwen

Joint Company Secretary

Beijing, the PRC

9 March 2026

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Notes:

1. On 30 December 2025, the Company entered into the Entrusted Loan Agreement with China Datang Group Finance Company Limited (“Datang Finance Company”) and Hebei Weizhou Energy Comprehensive Development Co., Ltd. (“Weizhou Energy Company”), pursuant to which, the Company shall provide an entrusted loan of RMB4.2 million to Weizhou Energy Company through Datang Finance Company. The term shall commence from the effective date of the Entrusted Loan Agreement and end on 25 December 2028, bearing a fixed interest rate of 2.50% per annum on a quarterly basis. The Entrusted Loan Agreement shall become effective upon being signed by the legal representatives or authorized representatives of the parties with their official seals or contract seals affixed thereto, and be subject to consideration and approval at the general meeting.

Weizhou Energy Company is a joint venture established by the Company and Kailuan (Group) Limited Liability Corporation, with each holding a 50% equity interest.

To implement the requirements of the Action Plan for Promoting Large-Scale Equipment Renewal and Consumer Goods Trade-in (Guofa [2024] No. 7) and the 2024-2025 Action Plan for Energy Conservation and Carbon Reduction (Guofa [2024] No. 12), and enjoy policy dividends, Weizhou Energy Company applied for ultra-long-term special government bonds in the large-scale equipment renewal sector based on its unit 1 flexible peak shaving and capacity expansion project. This project falls under the category of wide-load efficiency upgrades for coal-fired power units within the power industry under the energy sector, which will effectively enhance the unit's deep peak shaving and energy supply capabilities upon completion. In December 2025, the Company received financial fund of RMB4.2 million for the ultra-long-term special government bonds from China Datang Corporation Ltd. for the unit 1 flexible peak shaving and capacity expansion project of Weizhou Energy Company. By entering into the Entrusted Loan Agreement, the special fund was provided to Weizhou Energy Company in the form of entrusted loan, which helps alleviate external financing pressure of Weizhou Energy Company, ensure the rapid implementation of the project construction and reduce the level of project costs. The financial assistance will not affect the normal production, operation and use of funds of the Company, nor does it constitute the circumstances that financial assistance shall not be provided as stipulated in the Rules Governing the Listing of Stock on the Shanghai Stock Exchange (the “SSE Listing Rules”).

The financial assistance has been considered and approved at the ninth meeting of the twelfth session of the Board of the Company. As Weizhou Energy Company is a joint venture of the Company and its assets-to-liabilities ratio exceeds 70%, it is subject to review at the EGM under the SSE Listing Rules.

For details of this resolution, please refer to the overseas regulatory announcement in relation to the provision of financial assistance to a joint venture dated 30 December 2025.

1. Other Matters

(1) Each of the H Shareholders entitled to attend and vote at the EGM, is entitled to appoint one or more proxies to attend and vote on his/her behalf. A proxy need not be a shareholder of the Company.

(2) If the H Shareholders 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, the H Shareholders must deliver the proxy form, 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 notarized copy of that power of attorney or other authority, to the Company’s H-share registrar, Computershare Hong Kong Investor Services Limited at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong, not less than 24 hours before the time scheduled for holding the EGM.

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(4) The EGM (onsite meeting) is expected to last for one hour. Shareholders and their proxies attending the EGM 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: (8610) 8800 8276
Fax: (8610) 8800 8264
Email: dteam@dtpower.com

(5) Unless otherwise defined, capitalised terms used in this notice shall have the same meanings as defined in the overseas regulatory announcement of the Company dated 30 December 2025 in relation to the provision of financial assistance to a joint venture.

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

Li Xiaofei, Jiang Jianhua, Pang Xiaojin, Ma Jixian, Zhu Mei, Wang Jianfeng, Zhao Xianguo, Li Zhongmeng, Han Fang, Jin Shengxiang, Zong Wenlong, Zhao Yi, You Yong, Pan Kunhua, Xie Qiuye*.

• Independent non-executive Directors

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