2023
- Zennikin Co., Ltd. (Japan) was established.
- Test King Industry Co., Ltd. was established.
- Test Pro Development Co., Ltd. was established.
2022
Test Pro were established.
2021
Chung Cin Enterprise (U.S.) Corp. and Chung Cin California, LLC (U.S.) was established.
2020
Le-Joy Innovation Co., Ltd. was established.
2019
Phoenix Trading International Import Export Co., Ltd. (Vietnam) was merged into Chung Cin.
2018
- Test Cin International Co., Ltd. was established.
- Test-On Lighting Technology Co., Ltd. was merged into Chung Cin.
- The All-age LOHAS housing near HSR Miaoli station was established.