| UNION ASIA TRUCKING LIMITED | Private company limited by shares | Dissolved |
| UNION REGION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| UNION ASIAN LIMITED | Private company limited by shares | Live |
| UNION FAIR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MEGA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SHOES COMPANY LIMITED | Private company limited by shares | Live |
| UNION MICROSYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION FILM & ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| UNION COMMERCE LIMITED | Private company limited by shares | Dissolved |
| SUPREME UNION LIMITED | Private company limited by shares | Dissolved |
| UNION WELL TRADING LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION SINO DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION WEAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MARINE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORD LIMITED | Private company limited by shares | Live |
| LOYAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UPC UNION PRINTING COMPANY LIMITED | Private company limited by shares | Live |
| UNION TECH INVESTMENTS LIMITED | Private company limited by shares | Live Commenced dormancy on 23-Apr-1999 |
| UNION FUND LIMITED | Private company limited by shares | Dissolved |
| RICH UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| WEST UNION INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SINO UNION INSURANCE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION TEXTILE MILL LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION LOGISTICS SERVICES LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION MANAGEMENT SERVICES LIMITED | Private company limited by shares | Dissolved |
| FINE UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION ORIENT LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| EXCEL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION ASSET INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SKY FOOD LIMITED | Private company limited by shares | Live |
| WORLD UNION QUENTINI LIMITED | Private company limited by shares | Live |
| UNION VICTORY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SOLAR UNION (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| UNION PACIFIC TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION INSURANCE BROKERS LIMITED | Private company limited by shares | Live |
| UNION CONCORD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SKY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION NOBLE LIMITED | Private company limited by shares | Live |
| UNION EXPRESS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LEGEND LIMITED | Private company limited by shares | Dissolved |
| UNION ACCORD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SMART UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MARK UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FUND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FEDELITY LIMITED | Private company limited by shares | Dissolved |
| WELL UNION MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION LORD LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION MAX INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION PIONEER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CONCORD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HOPE UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIONA ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION VENTURE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| INTER UNION SECURITY SYSTEM LIMITED | Private company limited by shares | Dissolved |
| UNION LOYAL LIMITED | Private company limited by shares | Dissolved |
| UNION HINT LIMITED | Private company limited by shares | Dissolved |
| UNION BLESS LIMITED | Private company limited by shares | Live |
| UNION GENESIS LIMITED | Private company limited by shares | Dissolved |
| UNION EASY LIMITED | Private company limited by shares | Dissolved |
| UNION AMPLE LIMITED | Private company limited by shares | Dissolved |
| UNION ADVANCE LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS LIMITED | Private company limited by shares | Live |
| NICE TRADING UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CLASS LIMITED | Private company limited by shares | Dissolved |
| UNION SPACE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION BUSINESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION BUSINESS FORMS LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION LINK (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION LINK HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION EASY HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD CORPORATION LIMITED | Private company limited by shares | Live |
| GOLD UNION HOLDING LIMITED | Private company limited by shares | Live |
| GOLD UNION ASIA LIMITED | Private company limited by shares | Live |
| WORLD UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION LASER SECURITY CONSULTANTS CO., LIMITED | Private company limited by shares | Live |
| UNION ASIA AIRFREIGHT LIMITED | Private company limited by shares | Dissolved |
| UNION HEAVEN LIMITED | Private company limited by shares | Dissolved |
| UNION (HK) INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION CHOICE INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION CONSTRUCTION (GROUP) LIMITED | Private company limited by shares | Live |
| SUPREME UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION LINK MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION LINK TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNION FOND LIMITED | Private company limited by shares | Dissolved |
| UNION SOUND & LIGHTING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIONIX FINANCE CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| UNION KING SING DECORATION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION FINANCE INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |