| Hong Kong Ystar Trade Co., Limited | Private company limited by shares | Live |
| HONGKONG YSTAR INTERNATIONAL CULTURE COMMUNICATION PTE LIMITED | Private company limited by shares | Live |
| HongKong Ystar Technology Development Co., Limited | Private company limited by shares | Live |
| Ystar International Limited | | Live |
| YSTAR Packaging Co., Limited | | Live |
| QUANZHOU YSTAR UNDERWEAR CO., LIMITED | Private company limited by shares | Live |
| YSTen Holding Limited | Private company limited by shares | Live |
| YSTen Technology Company Limited | Private company limited by shares | Dissolved |
| YSTER HK LIMITED | | Live |
| YSTY INVESTMENTS & TRADING LIMITED | Private company limited by shares | Live |
| YSUFF SALIE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Y-SUPEX LIMITED | Private company limited by shares | Live |
| YSWAY TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Yswise Limited | | Live |
| YSYL LIMITED | Private company limited by shares | Live |
| YSYM SECRETARIAL COMPANY LIMITED | Private company limited by shares | Live |
| YSYN TECHNOLOGY CO., LIMITED | | Live |
| YSYPRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| YSYS SANITARY WARE (SPAIN) INT'L HOLDING LIMITED | Private company limited by shares | Dissolved |