| YikSum international trading(Hong Kong) Limited | Private company limited by shares | Live |
| YIKSUM INT'L COMPANY LIMITED | | Live |
| YIKTING TRADING LIMITED | Private company limited by shares | Live |
| YIKTO WATCH COMPANY LIMITED | Private company limited by shares | Live |
| Yiku Limited | Private company limited by shares | Live |
| Yikuair HK, Inc. Limited | Private company limited by shares | Live |
| Lightspeed YiKuaiXiu HK Limited | Private company limited by shares | Live |
| YIKUANG CST INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| YIKUN TRADE LIMITED | | Live |
| YIKWEI TRADING LIMITED | Private company limited by shares | Live |
| YIKWUI INTERNATIONAL (ASIA) LIMITED | Private company limited by shares | Live |
| YIKYUEN TRADING CO., LIMITED | Private company limited by shares | Live |
| YikYun Limited | | Live |