R&D, production and sales of motorcycles and accessories; production and sales of new energy vehicles and accessories. General projects: manufacturing of photovoltaic equipment and components; sales of photovoltaic equipment and components; leasing of photovoltaic power generation equipment; solar power generation technical services; research and development of special electronic materials; sales of solar thermal utilization products; sales of solar thermal power generation products; sales of solar thermal utilization equipment; sales of solar thermal power generation equipment