Licensed items: production of hazardous chemicals; operation of hazardous chemicals; power generation business, power transmission business, power supply (distribution) business; inspection and testing services (items subject to approval according to law can only be carried out with the approval of relevant departments, and specific business items are subject to the approval documents or licenses of relevant departments) General items: non-ferrous metal alloy manufacturing; ferroalloy smelting; commonly used non-ferrous metal smelting; metal material manufacturing; non-ferrous metal rolling processing; sales of metal products