China Environmental Technology Holdings Limited, an investment holding company, provides wastewater treatment plants construction and operation services, and trades in machinery and equipment in the People's Republic of China. The company operates through two segments, Wastewater Treatment and Healthcare. It is involved in the development of water purification technology and wastewater treatment equipment trading. The company also develops environmental protection related projects; provides environmental protection technology and equipment system integration, as well as offers environmental consultancy and project technical services. In addition, it develops medical information systems; and provides healthcare management consulting services and related products. The company was incorporated in 2001 and is headquartered in Kowloon, Hong Kong. China Environmental Technology Holdings Limited is a subsidiary of Gentle International Holdings Limited.