Software development Network and information security software development Technology promotion services; Animation and game development; Professional design services; Digital content production services (excluding publishing and distribution); Advertising design and agency; Advertising production Advertisement release; Development of artificial intelligence application software; Big data services Information system integration services Information technology consulting services Data processing service; Data processing and storage support services; Enterprise management Personal business services; Information system operation and maintenance services. (Except for the projects that must be approved by law, business activities can be carried out independently based on the business license in accordance with the law) Permitted project: Internet domain name registration service; Network culture operation. Projects that are subject to approval in accordance with the law may only be carried out after approval by the relevant authorities