Construction projects, undertaking the construction business of the headquarters, construction of sports venues and facilities, construction of landscaping projects, external contracting projects, construction of earthwork projects, and operation of sports venues and facilities (excluding high-risk sports); Mining of non coal mine mineral resources (excluding rare earths, radioactive minerals, and tungsten); Mining of non coal mine mineral resources, design and construction services for safety technology prevention systems, and engineering technology services (excluding planning and management, survey, design, and supervision); Industrial engineering design services, environmental protection monitoring, basic geological exploration: Geological exploration technology services: Engineering management services: Sales of specialized equipment for geological exploration, sales of building materials, sales of steel reinforcement products for construction, sales of mining machinery, sales of construction machinery, sales of building decoration materials, wholesale of automotive spare parts, sales of automotive decoration products, sales of tires, sales of lubricants, sales of specialized chemical products (excluding hazardous chemicals): All belong to mineral sales; Sales of non-metallic minerals and products, sales of mechanical equipment, wholesale of hardware products, sales of cement products, and sales of coatings (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of pumps and vacuum equipment, sales of petroleum products (excluding hazardous chemicals): Sales of insulation materials, operation of wires and cables, sales of rubber products, sales of special equipment, sales of electronic special equipment: Sales of electronic components and electromechanical equipment, sales of deep-sea oil drilling equipment, sales of environmental protection special equipment, sales of Class II medical devices, sales of metal products, sales of security equipment, sales of instruments and meters, municipal facility management, testing and testing services for highway and waterway engineering: Maintenance of transportation facilities, repair of general equipment, repair of special equipment, steel rolling processing, mechanical parts, parts processing: Initial processing of edible agricultural products, information consulting services (excluding licensing information consulting services); Installation services for ordinary mechanical equipment; Mechanical equipment leasing, leasing services (excluding licensed leasing services); Leasing of construction machinery and equipment, leasing services for storage equipment, leasing and operation services for small and micro buses, alcohol business, food sales, import and export of goods, technology import and export, import and export agency, food import and export (projects that require approval by law can only be carried out after approval by relevant departments)