General items: Technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; Information technology consulting services; Network and information security software development; Network technical services; Internet security services; Internet data service; Information system integration services; Integrated circuit design; Research and development of Internet of Things technology; Measurement technical services; Software development; Software outsourcing services; Software sales; Sales of electronic products; Internet equipment sales; Advertising design and agency; Advertising production; Marketing planning; Conference and exhibition services; Internet sales (except for the sale of goods that need to be licensed); Commodity sales; General merchandise sales; Sales of office equipment; Gift flower sales; Sales of labor protection articles; Sales of arts and crafts and ceremonial articles (except ivory and its products); Sales of office equipment and consumables; Sales of communication equipment; Personal Internet live broadcasting service (in addition to the licensed business, it can independently operate projects that are not prohibited or restricted by laws and regulations)