General items: Internet of Things technical services; Sales of IoT equipment; General cargo warehousing services (excluding hazardous chemicals and other items requiring approval); Research and development of IoT technology; Manufacturing of IoT equipment; Software development; Sales of communication equipment; Network equipment sales; Manufacturing of communication equipment; Computer software, hardware and peripheral equipment manufacturing; Internet of Things application services; Sales of information security equipment; Sales of electronic measuring instruments; Sales of wind turbine generator sets and parts; Sales of intelligent instruments; Wholesale of computer software, hardware and auxiliary equipment; Sales of onshore wind turbines; Import and export of goods; Sales of ecological environment monitoring and testing instruments; Battery sales; Sales of electronic products; Manufacture of photovoltaic equipment and components; Manufacturing of new energy driven equipment; Sales of new energy driven equipment; Sales of mechanical and electrical equipment; Solar power generation technology services; Battery manufacturing; Technical services for wind power generation; Integrated circuit manufacturing; Manufacturing of digital video monitoring system; IC sales; Manufacturing of electronic components and electromechanical components; Digital video monitoring system sales. (Except for projects that need to be approved according to law, business activities shall be carried out independently according to law with the business license)