Tianjin Capital Environmental Protection Group Company Limited, together with its subsidiaries, engages in the sewage treatment and construction of the sewage treatment plants in the People's Republic of China. It operates through Sewage Water Processing and Water Plant Facilities Construction; Recycled Water and Pipeline Connection; Heating and Cooling Supply and Related Facilities Construction; Tap Water and Water Plant Facilities Construction; Sale of Environmental Protection Equipment; and All Other segments. The company offers municipal sewage treatment, and water supply and recycling services, as well as sludge treatment, photovoltaic power generation, transformation of achievements in technology research, etc.; and involved in hazardous wastes business. It also provides toll collection services; environment governance, technical consulting services, etc.; technical consulting for water recycling business; energy saving and research, consulting and transfer, and property management services; and industrial solid waste incineration and disposal, and general waste recycling services, as well as invests in construction projects; and manufactures and sells new building materials. The company was founded in 1993 and is based in Tianjin, the People's Republic of China. Tianjin Capital Environmental Protection Group Company Limited is a subsidiary of Tianjin Municipal Investment Company Limited.