| ROSO Design Limited | Private company limited by shares | Live |
| ROSOLIO COMPANY LIMITED | Private company limited by shares | Dissolved |
| Rosolite Limited | Private company limited by shares | Live |
| ROSOLY LIMITED | Private company limited by shares | Live |
| ROSON LIMITED | Private company limited by shares | Live |
| ROSON Engineer Limited | Private company limited by shares | Live |
| Hong Kong Rosong International Trade Limited | | Live |
| Rosong Technology Limited | Private company limited by shares | Live |
| ROSOPA LIMITED | Private company limited by shares | Dissolved |