| UNISUN LIMITED | Private company limited by shares | Dissolved |
| UNISUN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNI-SUNSHINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Unisunshine Limited | Private company limited by shares | Live |
| UNI-SUPER COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-SUPREME LIMITED | Private company limited by shares | Dissolved |
| Uni-Supreme HK Limited | Private company limited by shares | Dissolved |
| UNISURAN LIMITED | | Live |
| UNISURGICAL LIMITED | Private company limited by shares | Live |
| UNI-SURPLUS LIMITED | Private company limited by shares | Dissolved |
| UniSwift Limited | Private company limited by shares | Live |
| Unisyn Technology Company Limited | Private company limited by shares | Live |
| UNISYS LIMITED | Private company limited by shares | Dissolved |
| UNISYSTEM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |