| ADVANCED UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION REGENT PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION CHANCE FREIGHT AGENCY LIMITED | Private company limited by shares | Live |
| FLY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MAX UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION LONG LIMITED | Private company limited by shares | Dissolved |
| FORTRESS UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| QUAD UNION LIMITED | Private company limited by shares | Dissolved |
| GRAND CHINA UNION LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTH LIMITED | Private company limited by shares | Dissolved |
| SUNWAY UNION ICE MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| OCEANIC UNION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG RIDING UNION LIMITED | Private company limited by shares | Live |
| WORLD FAMOUS DOCTOR UNION CO. LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION CROWN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION FAIR ELECTRONIC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LEGEND UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GRADE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| TIME UNION GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL XIN CULTURE UNITED UNION CO. LIMITED | Private company limited by shares | Dissolved |
| SINO UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION DEVELOPMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION GRACE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION FIDELITY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FIDELITY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION CHEER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION WEAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FORCE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FORD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN LIMITED | Private company limited by shares | Live |
| FAVOR UNION (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HALL LIMITED | Private company limited by shares | Dissolved |
| RICH UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION TARGET INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HOPE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CAPITAL (H.K.) LIMITED | Private company limited by shares | Live |
| UNION 2000 LIMITED | Private company limited by shares | Live |
| UNION ART CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION BUILDERS AND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION STAR CORPORATION LIMITED | Private company limited by shares | Live |
| ASIAN UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION TIDE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GREAT TRADING LIMITED | Private company limited by shares | Dissolved |
| HARVEST UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION PAPER COMPANY LIMITED | Private company limited by shares | Live |
| UNION FAITH INSURANCE ADVISOR LIMITED | Private company limited by shares | Live |
| GIANT UNION COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNION TOBACCO COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TEXTILE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SUN UNION ENVIRONMENTAL PACKAGING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CENTRAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONOUR UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION SHIPPING LIMITED | Private company limited by shares | Live |
| UNION COPYING CO., LIMITED | Private company limited by shares | Dissolved |
| CROWN UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION RESOURCE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION (HONG KONG) METAL PRODUCTS LIMITED | Private company limited by shares | Live |
| HONEST UNION LIMITED | Private company limited by shares | Dissolved |
| ALLIED UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA COMMERCE LIMITED | Private company limited by shares | Dissolved |
| UNION YORK LIMITED | Private company limited by shares | Dissolved |
| UNITED UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION TRANSPORTATION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION KING ENGINEERING LIMITED | Private company limited by shares | Live |
| UNION STANDARD LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION HANDBAGS LIMITED | Private company limited by shares | Dissolved |
| UNION WELCOME INVESTMENTS LIMITED | Private company limited by shares | Live Commenced dormancy on 29-Apr-2016 |
| LINK UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| DESIGN UNION LIMITED | Private company limited by shares | Live |
| SMART UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNIONFIT LIMITED | Private company limited by shares | Dissolved |
| UNION YEAR LIMITED | Private company limited by shares | Dissolved |
| NICE UNION LIMITED | Private company limited by shares | Dissolved |
| FAMOUS UNION LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FAITH UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION CHINA TRADING LIMITED | Private company limited by shares | Dissolved |
| TECH UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| NEW UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIONMAX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HONG KONG WORLD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| RICH UNION (FAR EAST) LIMITED | Private company limited by shares | Live |
| UNION EAGLE LIMITED | Private company limited by shares | Live |
| Sun Union Assets Management Limited | Private company limited by shares | Live |
| TAYLOR TECH UNION LIMITED | Private company limited by shares | Live |
| CANTON UNION LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNION CONSULTANTS (TRANSCRIPT) LIMITED | Private company limited by shares | Dissolved |
| HONOUR UNION CREATION LIMITED | Private company limited by shares | Dissolved |
| UNION TREND INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JADE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| POLY UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION EARN LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUCK UNION HOLDINGS LIMITED | Private company limited by shares | Live |