| 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 |
| FINE UNITED LIMITED | Private company limited by shares | Live |
| UNIFAIR LIMITED | Private company limited by shares | Dissolved |
| UNIHERO 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 |
| UNIWAY SHIPPING LIMITED | Private company limited by shares | Live |
| CREATIVE UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL CREATIONS LIMITED | Private company limited by shares | Dissolved |
| 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 |
| CENTURY UNITED ENTERPRISE 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 |
| GOLD UNITED LIMITED | Private company limited by shares | Dissolved |
| CHINA UNITED CAPITAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE DRAGON LIMITED | Private company limited by shares | Dissolved |
| UNITED WAY TRANSPORTATION 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 |
| UNISON INDUSTRIAL (FAR EAST) COMPANY LIMITED | Private company limited by shares | Dissolved |
| GLORY UNITED INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION MART INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIFICATION ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| GOLD UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL UNITED ENTERPRISES 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 |
| PACIFIC UNITED LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ICE PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| UNI-METALLICES LIMITED | Private company limited by shares | Live |
| UNI-ELECTRONICS (H.K.) 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 |
| UNIVERSE INFORMATION & ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| UNIQUE TRINITY LIMITED | Private company limited by shares | Dissolved |
| JOIN UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION HARBOUR HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION INSURANCE CONSULTANT CO. LIMITED | Private company limited by shares | Dissolved |
| UNION APPAREL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSAL HORIZON FINANCE LIMITED | Private company limited by shares | Dissolved |
| GAINFUL UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIQUE GOAL LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| DYNAMIC UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SMART UNION ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| COOPER UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED CHINESE GOLF ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNION ASIA DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GRACE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WONDERFUL UNIVERSAL CO. LIMITED | Private company limited by shares | Dissolved |
| UNITED PACIFIC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| RICH UNION TRADING LIMITED | Private company limited by shares | Live |
| UNIQUE WIN LIMITED | Private company limited by shares | Live |
| UNISON LIMITED | Private company limited by shares | Dissolved |
| MASTER UNIQUE LIMITED | Private company limited by shares | Dissolved |
| UNION FOCUS INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLDWOOD UNIVERSAL LIMITED | Private company limited by shares | Live |
| CHINA UNITED SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNITED LINK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION SENSE INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION LIGHT INDUSTRIES LIMITED | Private company limited by shares | Live |
| UNION SINO LIMITED | Private company limited by shares | Dissolved |
| UNION MEDIA LIMITED | Private company limited by shares | Dissolved |
| UNITED WIN LIMITED | Private company limited by shares | Dissolved |
| HORN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| GOLF UNIVERSAL ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| UNITED BEST TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL SUCCESS ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION WIDE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNIVERSE LIMITED | Private company limited by shares | Dissolved |
| UNITED NATIONS LIMITED | Private company limited by shares | Live |
| PACIFIC UNITED INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION ENTERPRISE (YUNNAN) LIMITED | Private company limited by shares | Dissolved |
| UNIQUE OCEAN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNIQUE HARBOUR LIMITED | Private company limited by shares | Dissolved |
| UNIQUE YORK LIMITED | Private company limited by shares | Live |
| UNIQUE KENT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| LINK UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| STAR UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| WIN UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| UNITED PORT SHIPPING LIMITED | Private company limited by shares | Dissolved |
| WINNER UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION LUCKY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNI-TARGET LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL STAR LIMITED | Private company limited by shares | Dissolved |
| UNION OF THE SWATOW CHRISTIAN CHURCHES -THE- | Company limited by guarantee | Live |
| UNICOM LIMITED | Private company limited by shares | Live |