Air pollution control; atmospheric environmental pollution prevention services; manufacturing of environmental protection special equipment; manufacturing of environmental monitoring special instruments and meters; environmental protection monitoring; manufacturing of mining machinery; manufacturing of pumps and vacuum equipment; manufacturing of electronic components; manufacturing of instruments and meters; manufacturing of intelligent instruments and meters; manufacturing of air pollution monitoring and detection instruments and meters; repair of instruments and meters; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; manufacturing of agricultural, forestry, animal husbandry, and fishery machinery parts; installation and maintenance of specialized machinery for agriculture, forestry, animal husbandry, sideline production, and fishery; manufacturing of automotive parts and accessories; manufacturing of railway locomotive and rolling stock parts; ship modification; manufacturing of marine supporting equipment; manufacturing of motorcycle parts; research and development of motorcycles and parts; research and development of electric motors and their control systems; manufacturing of mechanical and electrical equipment; repair of general equipment; repair of special equipment; repair of electrical equipment; software development; intelligent control system integration; engineering and technical research and experimental development; research and development of new material technologies; maintenance of electronic and mechanical equipment (excluding special equipment); research and development of mechanical equipment; research and development of automotive parts; repair and maintenance of motor vehicles; import and export of goods; import and export of technology; import and export agency; sales of batteries; sales of battery parts; sales of new energy vehicle electrical accessories; manufacturing of batteries; production of battery parts; research and development of emerging energy technologies; manufacturing of synthetic materials (excluding hazardous chemicals); recycling of renewable resources (excluding production scrap metal); research and development of resource regeneration technologies; sales of renewable resources; manufacturing of graphite and carbon products; research and development of electronic special materials; sales of electronic special materials; energy-saving management services; sales of synthetic materials. Licensed projects: ship repair; road cargo transportation (excluding dangerous goods).