Suzhou Huatai Air Filters Co., Ltd.

Hebei Puxing Electronic Technology Co., Ltd.
Nantong Xi'er Electronics Co., Ltd.
Shenzhen Jingxun Electronics Co., Ltd.
Guangzhou Seiko Electronics Co., Ltd.
Shenzhen Maslan Circuit Technology Development Co., Ltd.
Yangzhou Jingxin Microelectronics Co., Ltd.
Fifty-fifth of Institute China Electronics Technology Group
Dalian Yi Xian Da Electronics Co., Ltd.
Ningbo Guowei Minghua Microelectronics Co., Ltd.
Wuhan Jingke Electronics Co., Ltd.
Power Electronicsof Zhuzhou CSR Times Electric Co., Ltd.
Guilin Aerospace Electronics Co., Ltd.