General business items: information system design, integration, sales and operation and maintenance; information technology consulting; engaged in the import and export of goods and technology import and export business (the above does not include items that require pre-approval and prohibition according to laws, administrative regulations, and decisions of the State Council); licensed business items: R&D, production, sales and technical services of integrated circuits, high-voltage electrical appliances, low-voltage electrical appliances, and electrical equipment; design, R&D, production, and sales of computer software and hardware; R&D, production, purchase, sales, and technical services of electronic products, electrical components, instruments, and hardware products;