General project: Metal material manufacturing; Eyeglasses manufacturing; Manufacture of arts and crafts and ceremonial articles (except ivory and its products); Sales of arts and crafts and ceremonial articles (except ivory and its products); Lighting appliance manufacturing; Lighting appliance sales; Sales of metal products; Cork products sales; Cork products manufacturing; Import and export of goods; Import and export agent; Technology import and export; Technical service, technology development, technology consultation, technology exchange, technology transfer, technology promotion (except for the projects subject to approval according to law, independent business activities shall be carried out according to law with the business license).