General business items are: software sales; Software development; Retail of computer hardware, software and auxiliary equipment; Information system integration services; Information system operation and maintenance services; Information technology consulting services; Network technology services; Business training (excluding education training, vocational skills training and other training that requires permission); Camera and video production services; Advertising design, agency; Domestic trade agency; Business management consulting. (Except for the items subject to approval according to law, independently carry out business activities according to law with the business license), the permitted business items are: import and export of goods; Technology import and export. (For projects subject to approval according to law, business activities can only be carried out after approval by relevant departments, and specific business projects shall be subject to approval documents or license certificates of relevant departments)