Sales of lighting fixtures; Manufacturing of lighting fixtures; Semiconductor discrete device manufacturing; Manufacturing of optoelectronic devices; Electrical instruments

Instrument manufacturing; Manufacturing of electrical accessories; Manufacturing of specialized electrical and mechanical equipment; Manufacturing of mechanical and electrical equipment; Refrigeration

Manufacturing of air conditioning equipment; Manufacturing of household appliances; Daily electrical appliance repair; Repair of communication equipment; Electrical equipment repair;

Special equipment repair; Wholesale of electronic components; Retail of electronic components; Wholesale of hardware products; Sales of electrical equipment;

Sales of electronic products; Sales of household appliances; Sales of communication equipment; Research and development of efficient and energy-saving technologies in the power industry; Retail of household appliances;

Home appliance installation services; Design services; Rental of mechanical equipment; Retail of hardware products; Engineering and technical research and experimental development;

Internet sales (excluding sales of goods that require licensing); Import and export of goods.