General project: Sales of lighting fixtures: Sales of semiconductor lighting devices: Sales of lamps; Sales of electrical equipment; Sales of photovoltaic equipment and components; Sales of power electronic components; Wire and cable business: Sales of household appliances: Sales of household appliance parts: Technical services, technical development, technical consultation, technical exchange, technology transfer, technology promotion, import and export of goods, and technology import and export. (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)