Wholesale of hazardous chemicals (operated according to the scope listed in the license); self-operated and agency import and export business of various commodities and technologies (except for commodities and technologies that are operated by national companies or prohibited from import and export); sales of complete sets of mechanical and electrical products; sales of coal ; Fuel oil sales; Economic information consultation; Chemical product sales; Industrial white oil sales, light white oil sales; Plastic product sales; Labor protection supplies sales. (Projects that require approval according to law can only be carried out with the approval of relevant departments)