| M Units Limited | Private company limited by shares | Live |
| UNITS AUTO & HYDRAULICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SLB Bearings and Mounted Units Limited | Private company limited by shares | Live |
| BUSINESS UNITS CENTER LIMITED | Private company limited by shares | Live |
| UNITS CHINA COMPANY LIMITED | Private company limited by shares | Live |
| China Units Enterprises Limited | Private company limited by shares | Dissolved |
| Conveyor Units Limited | Private company limited by shares | Live |
| GOLDEN UNITS LIMITED | Private company limited by shares | Dissolved |
| San Units Group Limited | Private company limited by shares | Live |
| BRIGHT UNITS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNITS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HK GINGGO LIGHT UNITS LIMITED | Private company limited by shares | Live |
| FORTRESS PRECAST UNITS LIMITED | Private company limited by shares | Live |
| UNITS PROPERTIES LIMITED | Private company limited by shares | Live |
| PACKAGED REFRIGERATION UNITS LIMITED | Private company limited by shares | Dissolved |
| SECURITY PROTECTION UNITS LIMITED | Private company limited by shares | Dissolved |
| Special Cuties Units Limited | | Live |
| Unitscom Co. Limited | Private company limited by shares | Live |
| UNITSEMI TECHNOLOGY (HK) LIMITED | | Live |
| Unitservis HK Limited | | Live |
| UNITSHINE GROUP LIMITED | Private company limited by shares | Live |
| UNITSHIP CRUISES LIMITED | Private company limited by shares | Live |
| UNITSKY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITSKY INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITSO COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITSTAR TECH LIMITED | Private company limited by shares | Live |