Processing and manufacturing of lubricating oils (excluding hazardous chemicals); sales of lubricating oils; sales of petroleum products (excluding hazardous chemicals); manufacturing of petroleum products (excluding hazardous chemicals); production of chemical products (excluding licensed chemical products); sales of chemical products (excluding licensed chemical products); sales of specialized chemical products (excluding hazardous chemicals); manufacturing of specialized chemical products (excluding hazardous chemicals); wholesale of refined oil products (excluding hazardous chemicals); manufacturing of specialized equipment for daily-use chemicals; manufacturing of specialized equipment for oil refining and chemical production; sales of specialized equipment for oil refining and chemical production; sales of dyes; R&D of biochemical product technology; sales of graphene materials; sales of printing inks (excluding hazardous chemicals); sales of metal matrix composites and ceramic matrix composites; manufacturing of metal packaging containers and materials; sales of metal packaging containers and materials; manufacturing of plastic packaging boxes and containers; sales of plastic products; manufacturing of plastic products; packaging services for transported goods; general cargo warehousing services (excluding hazardous chemicals and other items requiring permits); road freight transportation by ordinary trucks with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); information technology consulting services; software development; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; information consulting services (excluding licensed information consulting); manufacturing of industrial automatic control system devices; sales of industrial automatic control system devices; engineering and technological research and experimental development; import and export of goods; import and export of technology.