The general business items are: Technical development, technical service, technical consultation, technology transfer and sales of computer software and hardware and computer system software; Computer system integration; Computer system design; Computer software and hardware equipment leasing (excluding financial leasing); Engage in business activities online (excluding restricted items); Engage in advertising business (if laws and regulations or the State Council require additional approval for advertising business, it can only be operated after obtaining a license); Sales of electronic products; Economic information consultation and enterprise management consultation (the above items do not include restricted items); Corporate image planning; Planning of cultural activities; Marketing planning; Domestic trade (excluding franchised, controlled and franchised commodities); To engage in import and export business (except for projects prohibited by laws, administrative regulations and decisions of the State Council, and restricted projects can only be operated after obtaining permission); Blockchain technology services; Database management; Database services; Big data analysis; Big data technology, big data analysis system technology development, technical service and technical consultation; Big data storage service; Big data security services; Conference planning (the above items involve laws and administrative regulations, except for the items prohibited by the State Council, and the restricted items can only be operated after obtaining a license). The licensed items are: