Engineering and technology research and experimental development; technical services, technology development, technical consulting, technology exchange, technology transfer, technology promotion; battery manufacturing; battery sales; research and development of special electronic materials; manufacturing of special electronic materials; sales of special electronic materials; sales of chemical products (excluding licensed chemical products); sales of pigments; manufacturing of power transmission and distribution and control equipment; sales of intelligent power transmission, distribution and control equipment; sales of charging piles; manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; manufacturing of hardware products; wholesale of hardware products; retail of hardware products; Sales of electronic products; manufacturing of photovoltaic equipment and components; sales of photovoltaic equipment and components; manufacturing of lighting fixtures; sales of lighting fixtures; manufacturing of intelligent instruments and meters; sales of intelligent instruments and meters; sales of daily necessities; sales of office equipment; sales of building materials; manufacturing of mopeds; sales of electric bicycles; toy manufacturing; sales of toys, animations and entertainment supplies; manufacturing of coatings (excluding hazardous chemicals); sales of coatings (excluding hazardous chemicals); wholesale of motorcycles and spare parts; sales of ships; retail of motorcycles and spare parts; and sales of trams. Licensed projects: basic telecommunications services; first-category value-added telecommunications services; second-category value-added telecommunications services; Internet information services.