Dayu Water Saving (300021.SZ): The company has been expanding its water conservancy business in Tibet since 2015, with some experience in participating in the construction of local hydropower stations in Tibet.

Zhitong Finance and Economics APP News, Dayu Water Saving (300021.SZ) announced that the company's stock has deviated from the closing price by more than 30% for two consecutive trading days on July 22nd and July 23rd, 2025. According to the relevant provisions of the Shenzhen Stock Exchange Trading Rules, this situation is considered abnormal stock trading volatility.