CITIC Envirotech Ltd, formerly United Envirotech Ltd, is an investment holding company engaged in the provision of environmental engineering services. The Company, through its subsidiaries, is engaged in providing membrane-based water and wastewater treatment, and recycling solutions. It operates through three segments: Engineering, which is engaged in the design and implementation of integrated environmental engineering solution based on membrane technology; Treatment, which is engaged in rendering of wastewater treatment services, and Membrane, which is engaged in manufacturing and sale of polymers. It also operates through engineering, procurement and construction (EPC); water investment, and membrane business divisions. Its subsidiaries include CITIC Envirotech (Guangzhou) Co., Ltd, CITIC Envirotech Water Treatment (Liaoyang) Co., Ltd, CITIC Envirotech Water Resource (Liaoyang) Co., Ltd and CITIC Envirotech Water Resource (Yancheng Dafeng) Co., Ltd.