General Projects: Refractory production, Refractory sales, Non-metallic mineral product manufacturing, Sales of non-metallic minerals and products, Graphite and carbon product manufacturing, Sales of graphite and carbon products,Chemical product sales( Does not contain permitted chemical products), Machinery and equipment sales, Mechanical and electrical equipment sales, Instrument sales, Valves and plugs sales, bearings、 Gear and transmission parts sales, Pump and vacuum equipment sales, Import and export of goods, Technology import and export( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)