| UNION SUNNY LIMITED | Private company limited by shares | Dissolved |
| UNION NOMINEES LIMITED | Private company limited by shares | Live |
| UNION STAND LIMITED | Private company limited by shares | Dissolved |
| GROUP UNION LIMITED | Private company limited by shares | Dissolved |
| UNIONWAY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SUNBRIGHT (UNION) ENGINEERING LIMITED | Private company limited by shares | Live |
| OCEANIC UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNIONROY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WELL UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GLOBAL UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| CENTRAL UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION WORLD LIMITED | Private company limited by shares | Dissolved |
| UNION TARGET CARGO LIMITED | Private company limited by shares | Dissolved |
| UNION JAYA TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAX UNION PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| BEST UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| BEST UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION BEST DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| POWER UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| NEW UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| GIANT UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION RANK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION BOND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FORD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SMART INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION RIGHT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNIONVILLE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION IMAGE LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| WELL UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION EAST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION INTEROCEAN TRADING LIMITED | Private company limited by shares | Live |
| UNION FAITH INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WAY INTERNATIONAL SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNIONCORP LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION DEVELOPMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 08-Mar-2016 |
| INTERNATIONAL UNION LIMITED | Private company limited by shares | Dissolved |
| PURSE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION ENERGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| UNION ETERNAL INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION ETERNAL ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ETERNAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION ETERNAL ENGINEERING LIMITED | Private company limited by shares | Live |
| SOUTH UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| LINK UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| NEWASIA UNION LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION CASTLE LIMITED | Private company limited by shares | Live |
| UNION JOY LIMITED | Private company limited by shares | Dissolved |
| UNION SOUND LIMITED | Private company limited by shares | Dissolved |
| UNION HAPPY LIMITED | Private company limited by shares | Dissolved |
| UNIONWAY OVERSEAS LIMITED | Private company limited by shares | Live |
| H.K. UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| H.K. UNION OVERSEAS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION PROGRESS LIMITED | Private company limited by shares | Live |
| UNION JOIN LIMITED | Private company limited by shares | Dissolved |
| H.K. UNION MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| BEST UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION EVER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TRADER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIONWAY SHIPPING LIMITED | Private company limited by shares | Dissolved |
| H.K. UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TANK UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FORCE INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION EMPIRE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ART UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SEA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION RESOURCES ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION MERIT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION EVER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION COUNTRY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION TRADER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SEA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION EVER INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| ART UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| POWER UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION MAGIC LIMITED | Private company limited by shares | Live |
| HAPPY UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HAPPY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JADE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SOUTH DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION SEA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION FUNCTION LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION (HK) LIMITED | Private company limited by shares | Dissolved |
| JOIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TOP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND UNION LIMITED | Private company limited by shares | Dissolved |
| RICHEST UNION LIMITED | Private company limited by shares | Dissolved |
| WINNER UNION LIMITED | Private company limited by shares | Dissolved |
| UNIONWAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KAM YUE UNION LIMITED | Private company limited by shares | Dissolved |