General items: sales of steel, furnace burden, metal materials, mechanical and electrical equipment, building materials, information consulting services (excluding licensing information consulting services), conference and exhibition services, non-residential real estate leasing, car leasing, and maintenance of electronic and mechanical equipment (excluding special equipment).
Landscaping engineering construction, industrial investment, import and export of goods and technology.
(Except for projects subject to approval according to law, independent business activities shall be carried out according to law with the business license)