Suntar Environmental Technology Co., Ltd. engages in the development and application of membrane technology. It operates through the Membrane Technology Application and Water Investment Operation business segments. The Membrane Technology Application segment includes industrial separation membrane equipment, membrane water treatment equipment, membrane accessories, detergents, and water purifier technology and equipment. The Water Investment Operation segment consists of the development of municipal water treatment technologies such as external ultrafiltration membrane, ozone process, and carrousel oxidation ditch. The company was founded by Wei Guang Lan on April 26, 2005 and is headquartered in Yanan, China.