| INTERFORM THREE UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION PRECISION TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE INVESTMENT LIMITED | Private company limited by shares | Live |
| CROWN UNION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION CITY CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION SKY HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SHEEN UNION LIMITED | Private company limited by shares | Dissolved |
| CHINA-JAPAN FEIDA UNION (HOLDINGS) COMPANY LIMITED | Private company limited by shares | Live |
| EAST UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION WAVE LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION CONSTRUCTION AND DECORATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TRUMP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SUPERIOR UNION AUTO SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HARBOUR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION TRANSPORTATION AND STEVEDORE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION ELITE LIMITED | Private company limited by shares | Dissolved |
| UNION TRADING (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION FINANCE LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION SECURITIES LIMITED | Private company limited by shares | Live |
| UNION PLAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FORCE TRADING LIMITED | Private company limited by shares | Dissolved |
| ORIENT UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DELTA UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION NATION HOLDINGS LIMITED | Private company limited by shares | Live |
| DELTA UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION TRADING (CHINA) LIMITED | Private company limited by shares | Live |
| UNION KING FAR EAST LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION BOHAI INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION LINK (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHARTER UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ALPHA UNION LIMITED | Private company limited by shares | Dissolved |
| ALL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION MASTER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GRAND CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| ITAI UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION MIND LIMITED | Private company limited by shares | Live |
| UNION FOCUS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CREATIVE INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| UNION PROFIT ASIA LIMITED | Private company limited by shares | Dissolved |
| DU'S (H.K.) UNION EXPLOIT CO., LIMITED | Private company limited by shares | Dissolved |
| UNION WISE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION LIMITED | Private company limited by shares | Dissolved |
| CENTRAL UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NATURAL UNION LIMITED | Private company limited by shares | Dissolved |
| CASTLE CHINESE UNION TRADE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION HONOUR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HONG KONG UNION STATES FINANCE LIMITED | Private company limited by shares | Dissolved |
| UNION STATION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNION INDUSTRIAL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| (H.K.) POST UNION PUBLISH CO., LIMITED | Private company limited by shares | Dissolved |
| UNION FORCE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION SENSE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION JET INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SENSE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| H.T.C. CERAMIC UNION LIMITED | Private company limited by shares | Dissolved |
| RICH UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION PLACE LIMITED | Private company limited by shares | Dissolved |
| EVER UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ALL UNION (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| EVER UNION INTERNATIONAL HOTEL MANAGEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOY UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION MATE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA PACIFIC EXPRESS LIMITED | Private company limited by shares | Dissolved |
| TRINITY UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION LAB. SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| DIAMOND UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| CENTRAL UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TRADERS (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BRAVE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| JOY UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION ASSET INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION APEX LIMITED | Private company limited by shares | Dissolved |
| BEAUTECOS UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION GARMENT LIMITED | Private company limited by shares | Live |
| CREATIVE UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION HERO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRICAL AND MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TEAM UNION LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| RELIANCE UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| FORTUNE UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WAY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION MART INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CHOMP UNION TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION RELIANCE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION WISE ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION EARTH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| JOIN UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |