General project: Sales of building materials; Sales of architectural ceramic products; Sales of daily ceramic products; Sales of building decoration materials; Sales of household goods; Sales of daily glass products; Furniture sales; Sales of glass fiber reinforced plastic products; Sales of electronic products; Wholesale of hardware products; Sales of arts and crafts and ceremonial items (excluding ivory and its products); Sales of sanitary ware; Wholesale of kitchen utensils, sanitary ware, and daily necessities; Internet sales (excluding sales of goods that require licensing); Research and development of sanitary ware. (Except for projects that require approval in accordance with the law, business activities shall be carried out independently with the business license in accordance with the law)