“Steel and iron smelting; steel rolling and processing; ferrous metal casting; manufacturing of metal materials; technical services, technical development, technical consulting, technical exchange, technical transfer, and technical promotion; sales of high-quality special steel materials; manufacturing of casting machinery; metal surface treatment and heat treatment processing; installation services for general mechanical equipment; processing of renewable resources; sales of renewable resources; sales of metal materials; manufacturing of hardware products; wholesale of hardware products; research and development of hardware products; retail of hardware products; manufacturing of cement products; sales of building materials; sales of non-metallic minerals and products; engineering cost consulting services; manufacturing of general equipment (excluding special equipment); processing of metal waste and scraps; information technology consulting services; technology intermediary services; sales of construction steel bars; import and export of goods; import and export agency; smelting of ferroalloys; manufacturing of coatings (excluding hazardous chemicals); manufacturing of lime and gypsum; sales of lime and gypsum; loading and unloading; general cargo storage services (excluding hazardous chemicals and other items requiring permits); conference and exhibition services; sales of mining machinery; mechanical equipment leasing; office equipment leasing services; property management; non-residential real estate leasing; construction machinery and equipment leasing; production of refractory materials; sales of refractory materials; air pollution control; sales of chemical products (excluding licensed chemical products); production of chemical products (excluding licensed chemical products); sales of daily-use department store goods; recycling of renewable resources (excluding production scrap metal); sales of construction machinery; sales of rubber products; manufacturing of gas, liquid separation and purification equipment; parking lot services; processing of non-metallic waste and scraps; sales of Class I medical devices; sales of Class II medical devices; sales of gas, liquid separation and purification equipment; road freight transport for vehicles with a total mass of 4.5 tons or less (excluding network freight and dangerous goods); technical consulting for resource recycling services; recycling of production scrap metal; solid waste treatment; labor services (excluding labor dispatch); land use rights leasing; production line management services; retail of computer software, hardware, and auxiliary equipment; sales of electrical measuring instruments; sales of metal ores; sales of plastic products; sales of mechanical equipment; sales of metal products; sales of communication equipment; sales of electrical equipment; sales of instruments; sales of labor protection products; sales of mechanical parts and components; sales of display devices; sales of copying and offset printing equipment; sales of power electronic components; sales of electrical materials; sales of office equipment consumables; system integration services; manufacturing of instruments; manufacturing of electrical measuring instruments; manufacturing of industrial automatic control system devices; software development; development of network and information security software; network technical services; sales of electronic products; manufacturing of electronic components; repair of instruments; repair of computers and office equipment; sales of office supplies. Permitted items: installation, modification, and repair of special equipment; gas operation; heating services; inspection and testing services; construction engineering construction; production of construction steel bars; road freight transport (excluding dangerous goods); cement production; interior decoration; specialized construction operations; mining of non-coal mineral resources; relocation.”,