The board of directors of Huaneng Power International, Inc. announced that Mr. Huang Lixin, President of the Company, has recently submitted a written resignation letter to the Board in accordance with relevant regulations, resigning from his positions as President due to adjustment in work arrangements. Effective Date of Resignation is 28 July 2025. Original Expiry Date of Term is 5 December 2026.

Whether Continues to Hold Positions in the Company and Its Subsidiaries: Yes. Specific Position(s) (if applicable): Chairman and Director of several subsidiaries of the Company. The Board also announced that at the 14th meeting of the 11th session of the Board held on 29 July 2025, it resolved to appoint Mr. Liu Ancang ("Mr. Liu") as the President of the Company.

The appointment took effect immediately upon the passing of the Board resolution. The Board hereby extends a warm welcome to Mr. Liu on his appointment as President. Mr. Liu Ancang, aged 56, is a member of the Communist Party of China.

He previously served as Deputy Director of the General Office of China Huaneng Group Corporation, Vice President and Party Secretary of the Shanghai Branch of Huaneng Power International, Inc., Director of the Board Office and Deputy Director of the General Office of China Huaneng Group Corporation and Chairman and Party Secretary of Huaneng (Guangdong) Energy Development Co. Ltd. He holds an Executive MBA degree from Xi'an Jiaotong University and is a senior engineer at the professor level.