| Company Name | Type | Status |
|---|---|---|
| Saint Hyro Group Holding Co., Limited | Live | |
| HYRO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hongkong Hyro Technology Co., Limited | Live | |
| Hyronda (HK) technology Co., Limited | Live | |
| HYROSS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |