Integrated circuit design; cloud computing equipment technical services; IoT technology R&D; IoT technical services; IoT equipment manufacturing; IoT equipment sales; teaching-specific instrument manufacturing; teaching-specific instrument sales; teaching models and teaching aids manufacturing; teaching models and teaching aids sales; stationery manufacturing; stationery retail; stationery wholesale; office supplies sales; cultural equipment leasing; information system integration services; computer software, hardware and peripheral equipment manufacturing; computer software, hardware and auxiliary equipment wholesale; computer software, hardware and auxiliary equipment retail; computer and office equipment repair; software development; software outsourcing services; software sales; AI application software development; education and teaching testing and evaluation activities; information system operation and maintenance services; conference and exhibition services; consulting and planning services; education consulting services (excluding those requiring licensing approval); road freight transport for ordinary cargo vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods).