Dahua Technology
Jiangsu SWR Science &Technology Co., Ltd.
Shandong Yuanda-llongwill Educational Science and Technology Ltd.
Beijing Wenxiang Information Technology Co.
Zhejiang Feiyou Kangti Facilities Co., Ltd
Leedarson IoT Technology Inc.
Zhejiang Campbell Science and Education Equipment Co., Ltd.
Xiamen Interactive Technology Co., Ltd
EEO(Empower education online)