Supply chain management services; business management; sales of chemical products (excluding licensed chemical products); sales of special chemical products (excluding hazardous chemicals); sales of petroleum products (excluding hazardous chemicals); sales of rubber products; wholesale of refined oil (excluding hazardous chemicals); sales of plastic products; sales of biobased materials; sales of synthetic materials; commercial complex management services; township economic management services; operation of wires and cables; technical services, technology development, technical consultation, technical exchange, technology transfer, and technology promotion; sales of metal structures; sales of textile-specific equipment; sales of special labor protective equipment; sales of coatings (excluding hazardous chemicals); sales of metal cutting machines; sales of environmental protection-specific equipment; sales of refining and chemical production-specific equipment; sales of mining machinery; sales of synthetic fibers; sales of pigments; sales of IoT devices; park management services; information consulting services (excluding licensed information consulting services); corporate image planning; social and economic consulting services; environmental protection consulting services; advertising design and agency; advertising release; conference and exhibition services; office services; graphic design and production; business agency services; project planning and public relations services; sales of fiberglass reinforced plastic products; business information consulting (excluding investment consulting); procurement agency services; labor services (excluding labor dispatch); digital advertising design and agency; digital advertising release; digital advertising production