Research and experimental development of natural science; Manufacturing of other non-metallic mineral products not listed; Casting of non-ferrous metals; Manufacturing of non-ferrous alloys; Manufacturing of other non-metallic processing special equipment; Wholesale of metals and metal mines (excluding hazardous chemicals and monitoring chemicals); Wholesale of computers, software and auxiliary equipment; Supply chain management; Internet sales; Retail of other electronic products; Wholesale of other chemical products (excluding hazardous chemicals and monitoring chemicals); Wholesale of building materials; Wholesale of hardware products; Wholesale of electrical equipment; Wholesale of textiles, knitwear and raw materials; Wholesale of clothing; Wholesale of shoes and hats; Wholesale of lamps and decorative articles; Wholesale of other indoor decorative materials; Other businesses not listed (excluding business projects requiring approval).