In the water affairs field, the company mainly engages in businesses such as EPC general contracting of water treatment islands in domestic coal-fired power plants, boiler make-up water treatment, condensate polishing treatment, industrial wastewater treatment, and zero wastewater discharge. It has undertaken more than 360 water treatment projects, and carried out 51 water treatment projects overseas. Its business covers 29 provincial administrative regions in China and more than 20 countries overseas.

Meanwhile, the company has participated in the construction of water treatment projects for all newly-built nuclear power plants in China, and it is the only company in China eligible to participate in overseas nuclear power construction. It has undertaken 29 nuclear power water treatment system projects with a total of 47 units. In the nuclear power water treatment business, it ranks first in the industry in China, with a market share of nearly 50%.