Business scope includes: Communication equipment sales; Retail of computer hardware, software and auxiliary equipment; Wholesale of computer hardware, software and auxiliary equipment; Technical service, technology development, technology consultation, technology exchange, technology transfer, technology dissemination; Office equipment sales; Sales of industrial control computers and systems; Computer equipment sales; Mobile communication equipment sales; Optical communication equipment sales; Network equipment sales; Audio equipment sales; Sales of household appliances; Sales of electronic products; Painting equipment sales; Electronic special equipment sales; Special equipment sales; Sales of power electronic components; Internet sales (except sales of goods that require permission).