Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Advertising release; Advertising design and agency; Advertising production; Conference and exhibition services; Professional design services; Computer system services; Information system integration services; Software development; Wholesale of sports goods and equipment; Sales of household appliances; Sales of daily necessities; Wholesale of cosmetics; Software sales; Wholesale of computer software, hardware, and auxiliary equipment; Sales of communication equipment; Electronic product sales; Sales of office equipment; Computer and office equipment maintenance; Furniture sales.