Import and export of goods; Import and export agency; Technology import and export: Sales of pulp and paper special equipment, sales of machinery and equipment, sales of special equipment, sales of mechanical and electrical equipment; Sales of specialized packaging equipment; Sales of paper products; Sales of electrical equipment; Sales of metal materials; Sales of metal structures; Sales of synthetic materials and biobased materials; Sales of specialized chemical products (excluding hazardous chemicals: Product A, EO, and O) (licensed chemical products for sale, soft equipment, meals, and components for sale, electronic measuring instruments for sale); Sales of solar thermal utilization equipment; Sales of solar thermal utilization products and daily glass products; Sales of gas compression machinery; Sales of building materials; Tool sales, fertilizer sales, toy sales, electronic product sales, cosmetics retail, rubber product sales, agricultural and sideline product sales, kitchenware, hygiene and daily necessities wholesale; Sales of labor protection equipment; Sales of packaging services for personal hygiene products: Sales of daily necessities and disposable medical supplies; Wholesale of sports goods and equipment; Plastic product manufacturing: Sales of live products.