| FIRST UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION NEW LIMITED | Private company limited by shares | Dissolved |
| SUPER UNION (BROTHER) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION DEVELOPING GROUP OF CHINA LIMITED | Private company limited by shares | Live |
| UNIONGIFT LIMITED | Private company limited by shares | Dissolved |
| PARFAIT UNION PRODUCTION LIMITED | Private company limited by shares | Live |
| UNION SUCCESS INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNION FAST INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNION FAME INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL SCIENCE & TECHNOLOGY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BUILDING MATERIALS TRADING LIMITED | Private company limited by shares | Live Commenced dormancy on 06-May-2004 |
| GRAND UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION CPA LIMITED | Private company limited by shares | Live |
| UNION GATE LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION LEGEND INVESTMENT LIMITED | Private company limited by shares | Live |
| HUI DE UNION LIMITED | Private company limited by shares | Dissolved |
| KING UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHINA ALUMINUM UNION LIMITED | Private company limited by shares | Live |
| UNION PROFIT TRADING LIMITED | Private company limited by shares | Dissolved |
| WIDE UNION TRADING LIMITED | Private company limited by shares | Live |
| GRACE UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION FUND (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION STRONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION KING DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UTC UNION CARGO LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA ENTERPRISES LIMITED | Private company limited by shares | Live |
| WORLD UNION PROPERTIES CONSULTANTS (HK) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNION GOOD (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION ENGINEERING CONSULTANTS CO. LIMITED | Private company limited by shares | Dissolved |
| LOYAL UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HUATONG UNION ASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION JOYCE LIMITED | Private company limited by shares | Live |
| INTELL UNION ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| STAR UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| GRACE UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION CROWN TRADING LIMITED | Private company limited by shares | Dissolved |
| WELL UNION MARITIME LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| ON UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| ON UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION BEST CORPORATION LIMITED | Private company limited by shares | Dissolved |
| DIJIA UNION INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| MEI YIN UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA MEDICAL TALENTS UNION LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS LIMITED | Private company limited by shares | Live |
| LEADER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| ON UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| RICH UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TEAM UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| STRATEGIC UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC (ASIA) LIMITED | Private company limited by shares | Live |
| UNION PACIFIC TRADING LIMITED | Private company limited by shares | Dissolved |
| POWER UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ANGLO UNION LIMITED | Private company limited by shares | Live |
| UNION ENGINEERING SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| WISE UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| EVER UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| JADE UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION RESOURCE LIMITED | Private company limited by shares | Live |
| UNION STATE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GARMENTS LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| EAST UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| UNION FAIR LIMITED | Private company limited by shares | Dissolved |
| UNITED UNION LIMITED | Private company limited by shares | Live |
| UNION KENT LIMITED | Private company limited by shares | Live |
| UNION & ASSOCIATES LIMITED | Private company limited by shares | Live |
| UNION TRADING (FAR EAST) CO. LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION CROWN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| AMT UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNION LINK TRADING LIMITED | Private company limited by shares | Live |
| GOOD UNION CONSTRUCTION (HK) COMPANY LIMITED | Private company limited by shares | Live |
| LINK UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| UNION SMART TRADING LIMITED | Private company limited by shares | Dissolved |
| SMART UNION GROUP LIMITED | Private company limited by shares | Live |
| UNION HONEST (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION CROWN ENTERPRISES LIMITED | Private company limited by shares | Live |
| NORTH DISTRICT PRIVATE DOCTORS UNION LIMITED | Private company limited by shares | Dissolved |
| UNION WORLDWIDE LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| FORE UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| WIDE UNION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| NEW UNION PRECISION INDUSTRIAL (H.K.) LIMITED | Private company limited by shares | Live |
| HONOR UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION MOTOR CAR TRADING LIMITED | Private company limited by shares | Dissolved |
| KEEN UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION PHARMACEUTICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL TRAVELS & TOURS (HK) LIMITED | Private company limited by shares | Dissolved |