R&D, technical consultation and technical services for communication terminal equipment, computer software, intelligent robots and biotechnology; Computer system integration services; Internet information services; Electronic engineering installation services, intelligent installation engineering services, power system installation services, communication line and equipment installation services; Municipal engineering and landscape greening engineering construction; Indoor and outdoor decoration design and construction; Sales of computer software and auxiliary equipment, electronic products, office supplies, communication terminal equipment, mechanical and electrical products, communication equipment and accessories, monitoring equipment, environmental protection equipment, fire-fighting equipment, traffic facilities, hardware products, automotive decorative supplies and daily necessities; Operation of value-added telecommunication services within the province. (Projects that require approval in accordance with the law can only be carried out after being approved by relevant departments)