Generator and generator set manufacturing; generator and generator set sales; general equipment manufacturing (excluding special equipment manufacturing); motor manufacturing; general parts manufacturing; pump and vacuum equipment manufacturing; pump and vacuum equipment sales; mechanical parts and components processing; mechanical parts and components sales; mechanical equipment sales; power distribution switchgear equipment research and development; motor and its control system research and development; mechanical equipment research and development; electronic special material research and development; software development; non-residential real estate leasing; enterprise management consulting; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; automotive parts research and development; automotive parts and accessories manufacturing; automotive parts and accessories retail; environmental protection special equipment manufacturing; power facility equipment manufacturing; power facility equipment sales; motor vehicle repair and maintenance; automobile sales; goods import and export; technology import and export; manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline fisheries; sales of specialized machinery for agriculture, forestry, animal husbandry, sideline fisheries; agricultural machinery manufacturing; intelligent agricultural equipment sales; marine engineering equipment research and development; photovoltaic equipment and components manufacturing; photovoltaic equipment and components sales; solar power generation technical services; gas compression machinery sales; petroleum product sales (excluding hazardous chemicals); lubricating oil sales. Licensed items: road motor vehicle production; special equipment design; special equipment manufacturing; special equipment installation, modification, and repair; electrical installation services; power generation, transmission, and supply (distribution) business; power supply business.