Its business scope includes import and export of self-operated and agent-operated goods and technologies, except those goods and technologies whose import and export are restricted or prohibited by the state, processing of imported materials, "three come and one supplement" business, countersale trade and re-export trade; Daily necessities, office supplies, stationery, hardware products, cotton, textile materials, needles textiles, primary agricultural products, feed, precious metals, metal materials, mineral products (except specifically charged), furnace charge, coke, mechanical equipment and accessories (except for special equipment), fuel oil, lubricating oil, auto parts, rubber products, plastic raw materials and products, glass products, lumber, building materials, packaging Sales of materials, paper products, chemical products and raw materials (except hazardous chemicals and precursor chemicals)