China Environmental Technology Holdings Ltd. is an investment company, which engages in the protection business. It operates through the Wastewater Treatment and Construction Services; and Wastewater Treatment Equipment Trading segments. The Wastewater Treatment and Construction Services segment includes the provision of wastewater treatment plants construction and operation services on a Build-Operate-Transfer basis. The Treatment Equipment Trading segment offers retails wastewater treatment facilities and machineries. The company was founded on August 31, 2001 and is headquartered in Hong Kong.