| UNION FUN LIMITED | Private company limited by shares | Dissolved |
| UNION SMART CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION DESIGN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION SHIPPING LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| UNION WELL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| A & D UNION LIMITED | Private company limited by shares | Dissolved |
| RICH UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION TRANSPORTATION LIMITED | Private company limited by shares | Live |
| FAIRVIEW UNION LIMITED | Private company limited by shares | Live |
| CENTRAL UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION TRADE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TALENT UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| METRO UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| IDEAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FAITH (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION RESOURCES HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION RICH (H.K.) LIMITED | Private company limited by shares | Dissolved |
| H.K. UNION HIGHWAY LIMITED | Private company limited by shares | Live |
| UNION CHARM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TRIDANT ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| UNION MAS FURNITURE MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION WIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION NATION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GOOD & NEW UNION MEDICINE & HEALTHCARE PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UNION SCREEN PRINTING COMPANY LIMITED | Private company limited by shares | Live |
| UNION SEIMITSU (HK) LIMITED | Private company limited by shares | Live |
| WELL UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNION DATA LIMITED | Private company limited by shares | Dissolved |
| UNION VOICE LIMITED | Private company limited by shares | Dissolved |
| UNION TOWN INT'L LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WIN (HONG KONG) LIMITED | Private company limited by shares | Live |
| OCEAN UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION WORLDWIDE LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMPION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION MAX INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION MAX TRADING COMPANY LIMITED | Private company limited by shares | Live |
| UNION BATTERIES COMPANY LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BASIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| EAST UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION AGENTS LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY BUILDING & DECORATION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NEW UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL TRADING DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION COMPUTER LIMITED | Private company limited by shares | Dissolved |
| UNION RESOURCES LIMITED | Private company limited by shares | Dissolved |
| UNION INFORMATION LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION WISE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE (EXPORT) COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAX UNION RESOURCES LIMITED | Private company limited by shares | Dissolved |
| MAX UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MAX UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| MAX UNION SOFTWARE (H.K.) LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CARGO UNION FREIGHT SERVICES LIMITED | Private company limited by shares | Live |
| TIME UNION MANUFACTURING LIMITED | Private company limited by shares | Live |
| GENERAL UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GROSS UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION PACE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GROSS UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION PACE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION ASSET LIMITED | Private company limited by shares | Live |
| UNION STEEL CEMENT (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION KAR COMPANY LIMITED | Private company limited by shares | Live |
| MAY UNION HONG KONG LIMITED | Private company limited by shares | Dissolved |
| GLORY UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HARVEST ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION KIND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION PEAK DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION PRIVATE LIMITED | Private company limited by shares | Dissolved |
| GRACE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FAT COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HOME INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION STYLE LIMITED | Private company limited by shares | Live |
| UNION FAITH INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SUN INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TREASURE INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 02-Apr-2015 |
| UNION FOCUS LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TEAM DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION (HK) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION NOMINEES LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TAEKWONDO UNION LIMITED | Company limited by guarantee | Dissolved |
| WONDER UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| WONDER UNION INVESTMENT LIMITED | Private company limited by shares | Live |