Datang Environment Industry Group Co., Ltd. provides environmental protection and energy conservation solutions to coal-fired power generation enterprises in the People's Republic of China. The company operates through Environmental Protection and Energy Conservation Solutions, Renewable Energy Engineering, Thermal Power Plants Engineering General Contracting, and Other Businesses segments. The Environmental Protection and Energy Conservation Solutions segment engages in the flue gas desulfurization and denitrification facilities concession operation business for coal-fired power plants, engineering business for coal-fired power plants.