| LUCKY UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SUPER UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNICAN LIMITED | Private company limited by shares | Dissolved |
| UNIGAIN (P & M ) LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION TRADING LIMITED | Private company limited by shares | Live |
| UNION CHARTER DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CHARTER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GOLD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GOLD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GOLD TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED PACIFIC TIMBER LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL CORPORATE MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION KING PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| BEST UNIT LIMITED | Private company limited by shares | Dissolved |
| UNITY STAR LIMITED | Private company limited by shares | Dissolved |
| UNISON CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNISON & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| UNION POWER PROPERTY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| CONSOLIDATION UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MANAGEMENT SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNITED RICH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION POWER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION CHARM TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION TECH SYSTEM LIMITED | Private company limited by shares | Dissolved |
| NEW CENTURY UNION LIMITED | Private company limited by shares | Dissolved |
| UNISOURCE TRADE & INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINA UNIVERSAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| POLY UNITED LIMITED | Private company limited by shares | Dissolved |
| CHARTER UNIVERSE PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| CONCORD UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ASIAN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FAIR (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION FASHIONS LIMITED | Private company limited by shares | Dissolved |
| TAI DOU (UNION) CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIFY TRIUMPH LIMITED | Private company limited by shares | Dissolved |
| CENTURY UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHARTER UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUPERB UNION LIMITED | Private company limited by shares | Dissolved |
| UNION PROJECT LIMITED | Private company limited by shares | Dissolved |
| UNITED CONCORD LIMITED | Private company limited by shares | Live |
| PRC UNITED INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNITAR ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED WAVE LIMITED | Private company limited by shares | Dissolved |
| UNIWAY TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION LINK INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL GLOBE TRADING LIMITED | Private company limited by shares | Dissolved |
| SAN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNI-GRACE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNITED LEADER LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SHEEN (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION GOAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNITED MAX INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITED POWER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION TARGET INTERNATIONAL CARGO LIMITED | Private company limited by shares | Dissolved |
| UNITY SENSE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITY WIN TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIKENT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNITY SENSE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION HONEST DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE LIMITED | Private company limited by shares | Live |
| UNION LOTUS LIMITED | Private company limited by shares | Dissolved |
| UNION ESTATES LIMITED | Private company limited by shares | Live Ceased dormancy on 12-May-1999 |
| UNION TRADE (CHINA) GARMENT MFG. LIMITED | Private company limited by shares | Dissolved |
| UNIKENT LIMITED | Private company limited by shares | Live |
| UNI-WINNER LIMITED | Private company limited by shares | Dissolved |
| UNITY TRADE LIMITED | Private company limited by shares | Dissolved |
| GUANG UNION FABRIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNI-EXPRESS LIMITED | Private company limited by shares | Live |
| UNITY HONEST LIMITED | Private company limited by shares | Dissolved |
| REGENT UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| MBA ASSOCIATION OF THE OPEN UNIVERSITY OF HONG KONG LIMITED -THE- | Company limited by guarantee | Live |
| JET UNION INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION KING HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION AIM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION TREND LIMITED | Private company limited by shares | Dissolved |
| UNION ACT LIMITED | Private company limited by shares | Dissolved |
| UNION (TSUN YIP) TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITY INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION KING TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION WISE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| LONG UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CAPITAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE DYNAMIC LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE GLORY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SPIRIT LIMITED | Private company limited by shares | Dissolved |
| UNION TREND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNITED HARMONY LIMITED | Private company limited by shares | Dissolved |
| UNION WAY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL UPGRADE LIMITED | Private company limited by shares | Dissolved |
| UNI-PACIFIC PROPERTY CONSULTANTS (COMM.) LIMITED | Private company limited by shares | Dissolved |
| UNI-PACIFIC PROPERTY CONSULTANTS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNI-PACIFIC PROPERTY CONSULTANTS (INV.) LIMITED | Private company limited by shares | Dissolved |
| UNI-PACIFIC PROPERTY CONSULTANTS (RETAIL) LIMITED | Private company limited by shares | Live |
| UNI-PACIFIC PROPERTY CONSULTANTS (RES.) LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT HOLDINGS LIMITED | Private company limited by shares | Live |
| JOINT UNION TRADING LIMITED | Private company limited by shares | Dissolved |