Bestsun Energy Co., Ltd. operates in China's city gas business, selling city pipeline gas and gas appliances and providing gas engineering installation services. It is also involved in business management, project investment, material trade, dangerous goods transportation, building installation, and energy distribution. In addition, the company produces and sells LNG, sells refined oil, and produces and supplies electricity, heat, and water, and it operates in the scientific research and technical service industry. Formerly known as Wuhan Winowner Group Co., Ltd., it changed its name to Bestsun Energy Co., Ltd. in August 2004; it was founded in 1992 and is based in Beijing, China.