General projects: Technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; Technology intermediary services; Sales of lighting fixtures; Sales of semiconductor lighting devices; Sales of lighting fixtures; Sales of display devices; Sales of power electronic components; Sales of office supplies; Paint sales (excluding hazardous chemicals); Sales of daily necessities; Sales of daily necessities; Sales of slides and projection equipment; Internet sales (excluding sales of goods that require licensing); Sales of daily glass products; Sales of building decoration materials; Sales of household goods; Sales of mechanical and electrical equipment; Import and export of goods; Technology import and export; Metal structure sales; Sales of metal materials; Battery sales. (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)