Promotion services for new material technology; technical services, technology development, technical consulting, technology exchange, technology transfer, and technology promotion; energy conservation management services; research and development of emerging energy technologies; technical consulting for resource recycling services; research and development of electronic specialized materials; manufacturing of metal structures; manufacturing of doors and windows; metal surface treatment and heat treatment processing; manufacturing of metal daily-use articles; manufacturing of specialized equipment for environmental protection; sales of specialized equipment for environmental protection; manufacturing of electronic specialized equipment; sales of electronic specialized equipment; manufacturing of metallurgical specialized equipment; sales of metallurgical specialized equipment; manufacturing of mining machinery; manufacturing of gas, liquid separation and purification equipment; sales of gas, liquid separation and purification equipment; sales of hydraulic power machinery and components; machining of mechanical parts and components; sales of mechanical parts and components; manufacturing of general parts; manufacturing of industrial robots; installation, repair, and maintenance of industrial robots; sales of industrial robots; research and development of intelligent robots; manufacturing of special operation robots; manufacturing of general equipment (excluding special equipment); manufacturing of cement products; manufacturing of paper products; sales of paper products; loading, unloading, and handling; general warehousing services (excluding items requiring licensing such as hazardous chemicals); manufacturing of rubber products; sales of rubber products; manufacturing of hydraulic power machinery and components; manufacturing of pneumatic power machinery and components; sales of pneumatic power machinery and components; sales of coal and coal products; sales of chemical products (excluding licensed chemical products); sales of non-metallic mineral products; manufacturing of non-metallic mineral products; manufacturing of metal materials; sales of metal materials; sales of metal ores; wholesale of hardware products; processing of recycled resources; recycling of recycled resources (excluding production scrap metal); sales of recycled resources; processing of metal waste and scraps; production of refractory materials; sales of refractory materials; manufacturing of straw and related products; sales of straw and related products; manufacturing of railway locomotive and rolling stock parts; sales of railway locomotive and rolling stock parts; manufacturing of specialized chemical products (excluding hazardous chemicals); sales of specialized chemical products (excluding hazardous chemicals); sales of high-quality special steel materials; sales of construction steel bars; steel rolling processing; manufacturing of mechanical and electrical equipment; repair of electrical equipment; sales of electrical equipment; manufacturing of metal processing machinery; manufacturing of metal cutting and welding equipment; sales of metal cutting and welding equipment; leasing of mechanical equipment; property management; leasing of non-residential real estate; leasing of land use rights; leasing of housing; sales of railway transportation equipment; sales of railway transportation infrastructure equipment; auxiliary railway transportation activities; manufacturing of plastic products; sales of plastic products; spray coating processing; manufacturing of new building materials (excluding hazardous chemicals); sales of building materials; goods import and export; import and export agency; technology import and export; comprehensive utilization of agricultural, forestry, animal husbandry, and fishery waste; processing and utilization services for crop straw; processing of biomass fuel; sales of biomass briquette fuel; sales of grains; sales of agricultural and sideline products; grain procurement; sales of beans and potatoes. Licensed projects: mining of non-coal mineral resources; road cargo transportation (excluding dangerous goods); construction engineering construction; manufacturing of railway transportation infrastructure equipment; manufacturing of railway locomotives and rolling stock.