| UNI-MARK COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-MARK LIMITED | Private company limited by shares | Live |
| UNIMARK ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-MARK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIMARK INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIMARK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIMARK ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| UNIMARK RESOURCES LIMITED | Private company limited by shares | Dissolved |