- 2020-6
- Wuxi Bistar Semiconductor Co., Ltd
- 2020-7
- Shanghai DynaCy Semiconductor Co., Ltd.
- 2019-3
- Jiangsu Testrong Technologies Co., Ltd.
- 2016-5
- Suzhou Uprecision Technologies Co., Ltd.
- 2015-05
- Shanghai Manlink Electronics Technologies Co., Ltd.
- 2011-04
- Shanghai Testrong Technologies Co., Ltd. was established
