| UNION POWER LIMITED | Private company limited by shares | Dissolved |
| UNI-MODE 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 |
| UNIVISION ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| UNITY CENTURY LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNI-PACIFIC (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNI-PACIFIC INVESTMENT LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL XINHUA PEACE UNION ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| ETERNAL UNITY FINANCE 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 |
| UNI-PROFIT LIMITED | Private company limited by shares | Dissolved |
| UNI-PROFIT INVESTMENT LIMITED | Private company limited by shares | Live |
| RICH UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| PCT UNITED COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED TARGET INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION PUBLIC CARS LIMITED | Private company limited by shares | Dissolved |
| BEST UNIT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNIVERSALINK NETWORK LIMITED | Private company limited by shares | Dissolved |
| CHINA UNIVERSE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| OUR UNIVERSE 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 |
| PARAGON UNITED LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION JET INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TENTH UNITED 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 |
| UNI-CIRCUIT (HONG KONG) 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 |
| UNI-RICH ASIA LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL GALAXY LIMITED | Private company limited by shares | Live |
| UNIVERSAL AIM 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 |
| UNITED ENTERPRISE COMPANY 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 |
| UNIVERSAL FEDELITY LIMITED | Private company limited by shares | Live |
| UNION TALENT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION LINK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ELEGANCE LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMPION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNIQUE CAPITAL 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 |
| UNIVERSE ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SHARE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PACIFIC INVESTMENTS 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 |
| UNICOM DATA ASIA LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| UNITED SPORTS LIMITED | Private company limited by shares | Dissolved |
| UNIQUE FINANCE LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL PROPERTIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIWELL INTERNATIONAL TRADING COMPANY 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 |
| UNITECH MEDICAL COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL MARK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| RICH UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNION MARK HOLDINGS LIMITED | Private company limited by shares | Live |
| UNI-CONCEPT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNI-KING INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNICOM TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION CHAMPION LIMITED | Private company limited by shares | Dissolved |
| COUNTRY UNION LIMITED | Private company limited by shares | Live |
| HAPPY UNITY LIMITED | Private company limited by shares | Dissolved |
| UNITED ELECTRICAL COMPANY LIMITED | Private company limited by shares | Live |
| UNBIASED INDUSTRIAL 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 |
| UNISPORT INDUSTRIAL CO. LIMITED | Private company limited by shares | Dissolved |
| HAPPY UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNIKEY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TRUMP UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNITED WATCH ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| UNISON CHINA LIMITED | Private company limited by shares | Live |
| UNISON ASIA LIMITED | Private company limited by shares | Live |
| UNICON HONG KONG LIMITED | Private company limited by shares | Live |
| SMART UNISON LIMITED | Private company limited by shares | Dissolved |
| UNISON UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNISON FAREAST LIMITED | Private company limited by shares | Dissolved |
| UNISON INFORMATION LIMITED | Private company limited by shares | Live |
| MODERN UNION ENTERPRISES LIMITED | Private company limited by shares | Live |