| UNION TREND INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JADE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIQUE HERO LIMITED | Private company limited by shares | Dissolved |
| POLY UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION EARN LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNITEYOU HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIVERSAL CREATION LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUCK UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIVERSAL GOLD ASSETS LIMITED | Private company limited by shares | Dissolved |
| BEST UNION MULTIMEDIA CO., LIMITED | Private company limited by shares | Dissolved |
| UNITED GAIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ASIA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA INTERNATIONAL UNION PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| UNION (CHINA - H.K.) TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS COMMERCE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA 2000 LIMITED | Private company limited by shares | Dissolved |
| UNITED DATA LIMITED | Private company limited by shares | Live |
| CHEER UNION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITONE LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNITED GRACE LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION MAX HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHTNESS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION PARK CONSULTANCY LIMITED | Private company limited by shares | Live |
| TOP UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNITED CHAMPION LIMITED | Private company limited by shares | Live |
| OCEAN UNION (HONG KONG) INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION TRANSPORT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION KNOPF (HK) LIMITED | Private company limited by shares | Live |
| UNIVERSAL LOYAL LIMITED | Private company limited by shares | Dissolved |
| UNION FORTRESS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION FIDELITY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION MART HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CHAMPION VIDEO LIMITED | Private company limited by shares | Live |
| UNITED WIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FOOK LEE UNION MAINTENANCE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD 2000 LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNITY LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION (TECHNOLOGY) LIMITED | Private company limited by shares | Dissolved |
| UNION CLEANING SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| WEAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED HILL TRADING LIMITED | Private company limited by shares | Dissolved |
| SUN UNION TRADING LIMITED | Private company limited by shares | Live |
| BRIGHT UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HORIZON UNITY LIMITED | Private company limited by shares | Live |
| UNIVERSAL LUCK HONG KONG LIMITED | Private company limited by shares | Dissolved |
| UNISON PACIFIC (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GREAT (BOB) INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNISON INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL TIME LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIVERSAL SHIPPING (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| AUSTRALIA FAR EAST UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BOCUBE MANUFACTURING LIMITED | Private company limited by shares | Live |
| UNIMIX ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTHY LIMITED | Private company limited by shares | Live |
| UNI-ACE LIMITED | Private company limited by shares | Dissolved |
| UNION KINGDOM LIMITED | Private company limited by shares | Live |
| UNION HORIZON LIMITED | Private company limited by shares | Dissolved |
| UNITED PACIFIC LIMITED | Private company limited by shares | Live |
| PARK UNION SPORTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNITED LEATHERS LIMITED | Private company limited by shares | Dissolved |
| ASIA PACIFIC UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD 21 CENTURY LIMITED | Private company limited by shares | Dissolved |
| UNION CREATION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS DEVELOPMENT LIMITED | Private company limited by shares | Live |
| STAR UNIVERSE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH STEVEDORE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PLUS LIMITED | Private company limited by shares | Dissolved |
| UNION CONSTRUCTION (N.T. DEVELOPMENT) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION METAL PRODUCTION LIMITED | Private company limited by shares | Live |
| UNIVERSAL BUSINESS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL BUSINESS SOLUTIONS LIMITED | Private company limited by shares | Live |
| UNITY TRADING LIMITED | Private company limited by shares | Live |
| UNITY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION BRIDGE LIMITED | Private company limited by shares | Dissolved |
| EVER UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| EVER UNION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL CHEMICALS LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION ONLINE LIMITED | Private company limited by shares | Dissolved |
| UNION ETERNAL ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNI-TALENT LIMITED | Private company limited by shares | Dissolved |
| WIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| WEAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FALCON LIMITED | Private company limited by shares | Live |
| UNITED HOPE LIMITED | Private company limited by shares | Live |