Sales of hand carts and animal-drawn vehicles; manufacturing of hand carts and animal-drawn vehicles; leasing of land use rights; equipment supervision services; sales of chemical products (excluding licensed hazardous chemicals); sales of food additives; leasing of mechanical equipment; leasing of non-residential real estate; biomass energy technology services; leasing of storage equipment; processing of biomass fuels; installation and repair of special equipment; operation of hazardous chemicals; storage of hazardous chemicals; electrical installation services; inspection and testing of special equipment; safety production inspection and testing; inspection and testing services; technology import and export; goods import and export.