Heilongjiang Interchina Water Treatment Co.,Ltd, together with its subsidiaries, engages in the water supply, drainage, and sewage treatment businesses in China. It operates through Sewage Treatment, Heating, and Others segments. The company engages in sewage and water treatment; clean energy heating; and environmental protection engineering EPC activities. It is also involved in environmental engineering design; environmental pollution control management facilities operation; import and export of goods and technology; engineering consulting; construction project management and investment; new energy; sale of chemical products and environmental protection equipment; environmental and field technology development; consulting inquiry; technology transfer and technical consulting; business; investment management; environmental protection project investment; management; water supply and drainage projects and works; agricultural technology; purchase and sale of agriculture and aquatic products; breeding; and new energy technology promotion and application services.