| UNIONCORP DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GAS APPLIANCES (HOLDINGS) LIMITED -THE- | Private company limited by shares | Live |
| GOOD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION TOP PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION WELL PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION LIGHT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION TRADE TECHNOLOGY LIMITED | Private company limited by shares | Live Commenced dormancy on 04-Feb-2015 |
| UNION VAN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| CROSS UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHAMPION UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHAMPION UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CROWN UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| NEW UNION HONG KONG LIMITED | Private company limited by shares | Live |
| SMART UNION DEVELOPMENT LIMITED | Private company limited by shares | Live Ceased dormancy on 06-Jun-2013 |
| SMART UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMART UNION LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION LIMITED | Private company limited by shares | Live |
| UNION WELCOME INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION HARBOUR INVESTMENTS LIMITED | Private company limited by shares | Live |
| 3 UNION WATCH COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SILK LIMITED | Private company limited by shares | Live |
| UNION CELEBRATION LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION LIGHT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION CAPITAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HARBOUR DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TIME PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UNION YEAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SKY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION ART (HONG KONG) LIMITED | Private company limited by shares | Live Commenced dormancy on 06-Mar-1998 |
| UNION YEAR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SKY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION CITY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEA UNION MARITIME LIMITED | Private company limited by shares | Dissolved |
| FINE UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| EVER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| EVER UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| EVER UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNION INGENIENT LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION LINK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION JET DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION JET INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FAME INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SMART INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SKY UNION DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| GOLD UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WELL UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| CAN UNION INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREATER UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GREATER UNION ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| WIN UNION ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION GARDEN LIMITED | Private company limited by shares | Live |
| BRIGHT UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHARM UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHARM UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NATIONAL UNION CORPORATION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| LAND UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| SKY BRIGHT UNION LIMITED | Private company limited by shares | Dissolved |
| DRACO UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LINK TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION LAND TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| NICE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| EVER UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| WEST UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HALL UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEST UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| FAIR UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FOREST INVESTMENTS & MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| FAIR UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SUPER UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION TECK LIMITED | Private company limited by shares | Live |
| UNION WIN TRADING LIMITED | Private company limited by shares | Live |
| UNION SINO OVERSEAS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TOP TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FINE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA PROPERTIES LIMITED | Private company limited by shares | Live |
| GOOD UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION WELL MANAGEMENT LIMITED | Private company limited by shares | Live |
| SUCCESS UNION LIMITED | Private company limited by shares | Live |
| VAST UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| MODERN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION POWER INFORMATION INDUSTRY CO. LIMITED | Private company limited by shares | Live |
| UNITED UNION CONTAINER LINES LIMITED | Private company limited by shares | Dissolved |