1. Optical fiber sales;

2. Emerging energy technology research and development;

3. Battery parts and components sales;

4. Battery sales;

5. Communication equipment sales;

6. Communication equipment repair;

7. Pneumatic and electric tool sales;

8. Electrical equipment repair;

9. Wholesale of hardware products;

10. Retail of hardware products;

11. Special equipment sales;

12. Electrical equipment sales;

13. Household appliance sales;

14. Electronic components and electromechanical component equipment sales;

15. Household appliance retail; Electrical equipment sales;

16. New energy prime mover equipment sales;

17. Distribution switchgear control equipment sales;

18. Energy storage technology services;

19. Online energy metering technology research and development;

20. New energy vehicle battery swap facility sales;

21. Photovoltaic power generation equipment leasing;

22. Photovoltaic equipment and components sales;

23. Information system integration services;

24. Information technology consulting services;

25. Industrial Internet data services;

26. Science and technology intermediary services;

27. Data processing and storage support services;

28. Communication equipment sales;

29. Mobile communication equipment sales;

30. Software development; Software sales;

31. Artificial intelligence basic software development;

32. Consulting and planning services;

33. Safety consulting services; Information consulting services (excluding information consulting services that require approval);

34. Optical cable sales; Wire and cable operation;

35. Power electronic component sales; Mechanical and electrical equipment sales;

36. Optical communication equipment sales;

37. Metal tool manufacturing; Metal tool sales.

(Except for projects that must be approved by law, business operations are carried out independently based on the business license. )