1. China Water Conservancy and Hydropower Construction Group Co., Ltd. is the largest state-owned holding enterprise in the field of water conservancy construction in China, headquartered in Beijing and listed on the Shanghai Stock Exchange.
2. China Energy Conservation and Environmental Protection Group Co., Ltd. is a comprehensive energy conservation and environmental protection enterprise, headquartered in Shijiazhuang City, Hebei Province, whose main business includes water engineering and environmental protection engineering. The company is listed on Shenzhen Stock Exchange.