The company's predecessor was Tianjin Bohai Chemical (Group) Co., Ltd. Bohai Chemical was incorporated in Tianjin, People's Republic of China (“China”) on June 8, 1993. Shares listed on the Hong Kong Stock Exchange Limited (“H shares”) were listed and traded in May 1994, while shares listed on the Shanghai Stock Exchange (“A shares”) were listed and traded in June 1995. The company's main business consists of basic business and strategic new business. The basic business includes municipal sewage treatment, water supply, reclaimed water, etc., and is the main source of the company's revenue and profit; the new strategic business mainly includes dual-carbon new energy business, which mainly focuses on new energy cooling and heating and photovoltaic power generation, and solid waste business, mainly sludge disposal, resource utilization, and hazardous waste business. In addition, the new strategic business complements the basic business in terms of profitability, economic added value, and payback period, and optimizes the overall business structure. The company has been awarded the “Top Ten Influential Enterprises in China's Water Industry” for the 19th year in a row.