China Yangtze Power Co., Ltd.

Announcement on Electricity Generation in the Third Quarter 2025

This announcement contains the English translation of the Chinese version of China Yangtze Power Co.,Ltd. Announcement on Electricity Generation in the third quarter of 2025 as published on the website of the Shanghai Stock Exchange, and is provided for your reference only. In case of discrepancy between the Chinese version and the English version, the Chinese version shall prevail.

According to the preliminary statistics of the Company, in the first three quarters of 2025, the total inflow to the Wudongde Reservoir was approximately 83.489 billion cubic meters, representing a year-on-year decrease of 6.04%; the total inflow to the Three Gorges Reservoir was approximately 298.880 billion cubic meters, representing a year-on-year decrease of 4.54%.

In the first three quarters of 2025, the total electricity generation of the Company's six domestic cascade hydropower plants was approximately 235.126 billion kWh, remaining flat compared with the same period last year. In the third quarter, the total electricity generation of these six plants was approximately 108.470 billion kWh, representing a decrease of 5.84% compared with the same period of last year. The gross electricity generation of each of the Company's domestic hydropower projects is as follows:

It is hereby announced.

The Board of Directors of China Yangtze Power Co., Ltd.

October 13, 2025