Computer information technology development and technical services; computer software and hardware development, sales and provision of technical services, technology transfer and technical consulting; network technology development, technology transfer and technical consulting; web design; computer system integration; data Processing; agricultural technology, biotechnology, new material technology, environmental protection technology, energy-saving technology research and development and technology promotion; new energy technology development; sales: computer auxiliary equipment, office supplies and consumables, communication equipment (excluding wireless radio and television transmission and satellite ground Receiving equipment), electronic products, instruments and meters; business management consulting; education consulting; business consulting (excluding securities, futures, financial and investment consulting); human resources intermediary services; housing construction projects, highway projects, indoor and outdoor building decoration and decoration Engineering, municipal engineering, building waterproofing engineering, landscaping engineering construction; patent agency; information technology consulting, technology promotion; organizing cultural and artistic exchange activities; corporate image planning; corporate marketing planning; conference and exhibition display services; literary and artistic creation; translation services; Internet information technology services; intermediary services for self-funded study abroad, etc.