General items: Import and export of goods; Technology import and export; Building materials sales; Timber sales; Metal material sales; Hardware products wholesale; Hardware products retail; Sales of thermal insulation materials; Sales of chemical products (excluding licensed chemical products); Needle textile sales; Sales of needle textiles and raw materials; Market management services; General merchandise sales; Sporting goods and equipment retail; Wholesale of sporting goods and equipment; Stationery retail; Stationery wholesale; Sales of power electronic components; Sales of electronic products; Metal ore sales; Sales of gold and silver products; Auto parts retail; Auto parts wholesale; Automobile decoration supplies sales; New energy vehicle sales; New car sales; Wholesale of computer hardware, software and auxiliary equipment; Retail of computer hardware, software and auxiliary equipment; Internet equipment sales; Information security equipment sales; Network equipment sales; Lubricating oil sales; Furniture sales; Furniture parts sales; New energy power equipment sales; Research and development of emerging energy technologies; Information consulting services (excluding licensed information consulting services); Container sales; Machinery and equipment sales. (Except for projects subject to approval according to law, independently carry out business activities according to law with business licenses)