Import and export of goods; R&D of emerging energy technologies; manufacturing of new energy original power equipment; manufacturing of auto parts and accessories; retail of auto parts; sales of new energy vehicles; sales of automobiles; sales of household waste treatment equipment; motor vehicle repair and maintenance; sales of metal products; installation services for general mechanical equipment; information technology consulting services; non-residential real estate leasing; manufacturing of environmental protection specialized equipment; manufacturing of metal structures; sales of metal structures; R&D of mechanical equipment; R&D of metal products; sales of mechanical equipment; sales of environmental emergency technical equipment; sales of environmental protection specialized equipment; sales of special equipment; steel rolling and processing; manufacturing of metal materials; sales of metal materials; manufacturing of metal processing machinery; manufacturing of specialized equipment (excluding licensed specialized equipment manufacturing). Licensed items: Manufacturing of road motor vehicles.