Manufacture of arts and crafts and ceremonial articles (except ivory and its products); wholesale of arts and crafts and collectibles (except ivory and its articles); retail of arts and crafts and collectibles manufacture of arts and crafts and ceremonial articles (except ivory and its articles) ); Retail sale of collections of arts and crafts (except ivory and its products): Sales of semiconductor lighting devices: Sales of lighting fixtures: Sales of electronic products: Internet sales (except for products that require licenses); Domestic trade agency; Import and export of goods: Technology import and export.