R&D and sales of software; information system integration services; manufacturing and sales of electronic components; design, production, agency and distribution of domestic advertising business; sales of automobiles, motorcycles and spare parts, moped bicycles and spare parts, hardware products, computers, software and auxiliary equipment, electronic products, communication equipment, textiles, clothing and household goods, shoes and hats, bags, cultural supplies, flowers and seedlings; retail sales of books, newspapers and periodicals; value-added telecommunications business (operating with a valid license); technology development and technology transfer in the field of computer and electronic technology; marketing planning; assembly and sales of electric vehicle spare parts; leasing of mopeds (excluding financial leasing); self-operated and agent import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export); sales of daily masks (non-medical); wholesale of medical masks; wholesale of protective equipment for medical staff