Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; sales of mechanical parts and components; sales of photovoltaic equipment and components; information consulting services (excluding licensed information consulting services); information technology consulting services; sales of metal materials; sales of non-metallic minerals and products; sales of wires and cables; sales of power electronic components; supply chain management services; software development; leasing services (excluding licensed leasing services); photovoltaic power generation equipment leasing; project management services; general cargo warehousing services (excluding hazardous chemicals, etc. that require license approval) Projects); battery spare parts sales; battery sales; information system integration services; communication equipment sales; power facility equipment sales; contract energy management; import and export agency; goods import and export; labor services (excluding labor dispatch); metal material manufacturing; nonferrous metal rolling processing; solar Energy generation technical services; sales of electric bicycles; sales of assistive bicycles, scooters and spare parts; sales of special equipment; sales of charging piles; sales of intelligent power transmission, distribution and control equipment; maintenance of electric bicycles; shared bicycle services; retail of motorcycles and spare parts; sales of bicycle spare parts. Licensed projects: Construction project construction; Construction project design; Road cargo transportation (excluding dangerous goods); Waterway general cargo transportation; Public railway transportation; Installation, maintenance and testing of power transmission, power supply, and power receiving power facilities; Operation of hazardous chemicals; Class II value-added telecommunications business.