Import and export of goods; Technology import and export; Agent for import and export; Wholesale and retail daily necessities, cultural goods, sporting goods, textiles, hardware and electricity, handicrafts, metal materials, building materials, chemical products (excluding hazardous chemicals), machinery and equipment, electronic products (retail is only operated by branches); Economic information consulting.(Enterprises independently choose business projects and carry out business activities according to law; For projects subject to approval according to law, business activities shall be carried out in accordance with the approved contents after approval by relevant departments; They shall not engage in business activities of items prohibited and restricted by this Municipality's industrial policies.