According to the enterprise data, Chongqing Wanan New Energy Co., Ltd. was established in 1985-09-25, and its business scope includes licensed items: wholesale and retail of liquefied petroleum gas and dimethyl ether, installation and maintenance of gas burning appliances, gas operation, installation, modification and maintenance of special equipment, power supply business, installation, maintenance and testing of power transmission and transformation, power supply and power reception facilities, power generation business, and power transmission business and supply. Only after the approval of the relevant departments can business activities be carried out. The specific business projects shall be subject to the approval documents or licenses of relevant departments. General items: sales of stoves and accessories, real estate leasing, sales of special equipment, sales of pipeline transportation equipment, sales of instruments and meters, sales of chemical products (excluding licensed chemical products), sales of electrical equipment, sales of mechanical equipment, technical services, technical development, technical consultation, technical exchange, technology transfer and technology promotion. Rental of special equipment, manufacturing of basic chemical raw materials (excluding the manufacturing of licensed chemicals such as hazardous chemicals), leasing of machinery and equipment, sales of metal products, sales of electronic products, sales of generators and generator sets, sales of electromechanical equipment, technical services for power generation, technical services for wind power generation, research and development of energy-saving technologies in power industry, sales of power facilities and equipment, and manufacturing of power facilities and equipment (except for projects subject to approval according to law, independent business activities shall be carried out according to law with business licenses).