Import and export of goods and technology; Wholesale and retail: Pre-packaged food and bulk food; Sale: Clothing, shoes and hats, Agricultural and livestock products, Chemical products( Except for hazardous chemical products), Daily necessities, Mechanical and electrical products, building materials, Hardware and Electrical, Metal materials, Decorative materials, Petroleum products, rubber products, Computers and hardware and software, Local daily necessities, Handicrafts, cosmetic, Auto Parts, Construction Machinery, Mineral Products, communications equipment( Except for second-hand mobile phones),, Refrigeration equipment, jewelry, Liquefied natural gas temperature storage equipment, transportation equipment; Livestock and poultry farming, Plant cultivation, Oilfield technical consulting, Oilfield equipment maintenance, Oil pump maintenance, Petroleum equipment and supplies, Economic information consulting services, Railway Information Consulting Services, Freight forwarding。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)