Chongqing Tianzhidao Technology Development Co., Ltd.
Changzhou Tcostar Tools Co., Ltd.
Boxin Communication Co., Ltd.
Shanghai Minghua Power Technology Co., Ltd.
Guangzhou Meadville Electronics Co., Ltd.
Zhejiang Tch Industrial Co. Ltd.
Nanjing Huake Haona Electric Technology Co., Ltd.
Shanghai Tongren Hospital
Minqin County Tengyu Industry and Trade Co., Ltd.
Shantou Guofu Zirconium Titanium Industrial Co., Ltd.
Nyby Bruk AB
Anhui Zhongchuang Food Testing Co., Ltd.