| UNION ASSET DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION POWER LIMITED | Private company limited by shares | Dissolved |
| FAITHFUL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| CHINA INTERNATIONAL XINHUA PEACE UNION ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT ELECTRONIC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION PUBLIC CARS LIMITED | Private company limited by shares | Dissolved |
| WEST-EAST UNION ENTERPRISE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS ENTERPRISES LIMITED | Private company limited by shares | Live |
| PACIFIC UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION JET INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION HOST LIMITED | Private company limited by shares | Dissolved |
| HONEST UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIONCORE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION PERFECT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION PARK PERSONNEL LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| LEON UNION LIMITED | Private company limited by shares | Live |
| SUNNY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION CHANNEL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION CHANNEL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION CHANNEL PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TALENT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION LINK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMPION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| ARTIC UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CAR SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL UNION OF ECONOMISTS (ASIA) LIMITED | Company limited by guarantee | Live |
| UNION TACT LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| UNION LAND LIMITED | Private company limited by shares | Dissolved |
| UNION SHELL LIMITED | Private company limited by shares | Dissolved |
| UNION SMART TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION MARK HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION CHAMPION LIMITED | Private company limited by shares | Dissolved |
| COUNTRY UNION LIMITED | Private company limited by shares | Live |
| UNION HORSE LIMITED | Private company limited by shares | Live Ceased dormancy on 24-Aug-2009 |
| UNION GOAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| EAGLE UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| HAPPY UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| TRUMP UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MODERN UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION MATE (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION ARCADE LIMITED | Private company limited by shares | Dissolved |
| Union Air Global Logistics Limited | Private company limited by shares | Live |
| UNION RICH CORPORATION LIMITED | Private company limited by shares | Live |
| UNION RICH INDUSTRIAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| ENGO UNION LIMITED | Private company limited by shares | Live |
| UNION EQUITY LIMITED | Private company limited by shares | Dissolved |
| UNION MATCH LIMITED | Private company limited by shares | Dissolved |
| SINO UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION ARTIC LIMITED | Private company limited by shares | Dissolved |
| UNION GAIN LIMITED | Private company limited by shares | Dissolved |
| SUN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION TOP ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION ETERNAL LIMITED | Private company limited by shares | Dissolved |
| UNION WINNER LIMITED | Private company limited by shares | Dissolved |
| TARGET UNION LIMITED | Private company limited by shares | Live |
| UNION FOCUS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL (HOLDING) GROUP LIMITED | Private company limited by shares | Dissolved |
| CANTON UNION LIMITED | Private company limited by shares | Dissolved |
| UNION HORSE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION EASY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION ORIENT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MC UNION CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| UNION PEAK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION SUPERB INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| KING UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMPION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TARGET INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FORD UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| CHARTER UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNIONIX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HEALTH UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SPEEDY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CHAMPION UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| FORTUNE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| POP UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ADVANCE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION RICH (ASIA) LIMITED | Private company limited by shares | Dissolved |
| THORN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION RIGHT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION LINK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIONSONIC INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| CONCORD UNION LIMITED | Private company limited by shares | Live |
| ELITE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION ACHIEVE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TOWER LIMITED | Private company limited by shares | Dissolved |
| UNION FAT KNITTERS LIMITED | Private company limited by shares | Dissolved |
| UNION FAT INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| DESIGN UNION INTERIOR CONTRACTING LIMITED | Private company limited by shares | Live |