Datang Environment Industry Group Co., Ltd. engages in the business of environmental protection and energy conservation. It operates through the following business segments: Environmental Protection and Energy Conservation Solutions, Renewable Energy Engineering, Thermal Power Engineering, and Other Businesses. The Environmental Protection and Energy Conservation Solutions segment mainly includes flue gas desulfurization and denitrification facilities concession operation for coal-fired power plants, the manufacture and sale of denitrification catalysts, engineering for coalfired power plants, including the engineering of denitrification, desulfurization, dust removal, ash and slag handling and other environmental protection facilities and industrial site dust management related engineering, water treatment, and energy conservation including energy conservation facilities engineering and energy management contracting. The Renewable Energy Engineering segment includes the engineering general contracting for newly-built wind power plants, biomass power plants and photovoltaic power plants. The Thermal Power Engineering General Contracting segment refers to the engineering procurement construction services for thermal power plants. The Other Businesses segment represents the various businesses such as fiberglass chimney anti-corrosion, air cooling system engineering general contracting and coal yard monitoring system upgrade. The company was founded on July 25, 2011 and is headquartered in Beijing, China.