1. Beijing Huayun Technology Development Co., Ltd. 2. Beijing Wanyun Technology Development Co., Ltd. 3. Hunan Putian Zhongpu Lightning Protection Technology Co., Ltd. 4. Hunan Putian Corbet Lightning Protection Technology Co., Ltd. 5. Shanxi Huayun Technology Development Company 6. Hebei

Yuxiang Lightning Protection Engineering Co., Ltd. 7. Inner Mongolia Jinchuan Development Zone Lightning Protection Engineering Company 8. Tianjin Lightning Protection Technology Center 9. Jilin Province Lightning Protection Engineering Company 10. Liaoning Lightning Protection Engineering Co., Ltd. 11. Harbin Huayun Lightning Protection Engineering

Limited liability company 12. Shanghai Huayun Lightning Protection Technology Co., Ltd. 13. Anhui Huayun New Technology Development Company 14. Chizhou Lightning Protection Engineering Company 15. Jiangsu Tianan Lightning Protection Engineering Co., Ltd. 16. Ningbo Huadun Lightning Protection Technology Co., Ltd.

17. Zhejiang Dongfang Lightning Protection Engineering Co., Ltd. 18. Fujian Huayun Technology Development Company 19. Xiamen Xiangyun Technology Service Company 20. Jiangxi Blue Sky Lightning Protection Co., Ltd. 21. Shandong Tianke Lightning Protection Engineering Co., Ltd. 22. Qingdao Xinke Lightning Protection

Engineering Technology Co., Ltd. 23. Wuhan Lightning Protection Co., Ltd. 24. Guangdong Tianwen Lightning Protection Engineering Co., Ltd. 25. Zhanjiang Lightning Protection Technology Service Company 26. Guangzhou Blue Sky Lightning Protection Technology Co., Ltd. 27. Guangxi Lightning Protection Engineering Co., Ltd. 28.

Hainan Xiangyun Lightning Protection Co., Ltd. 29. Shaanxi Huaan Lightning Protection Engineering Technology Co., Ltd. 30. Qinghai Anju Lightning Protection Engineering Co., Ltd. 31. Ningxia Hengan Lightning Protection Engineering Co., Ltd. 32. Beijing Oudian Technology Co., Ltd. 33. Beijing Ailao

Hi-Tech Co., Ltd.