| Rambo Union Technology Center (HK) Limited | Private company limited by shares | Live |
| CHIEF PANAMAX UNION CO., LIMITED | Private company limited by shares | Live |
| UNION YIELD TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION ACE INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION BEST TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION HONOR INTERNATIONAL TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION POWER SOURCES TECH. CO., LIMITED | Private company limited by shares | Live |
| CHING YING TAEKWONDO UNION LIMITED | Private company limited by shares | Live |
| Children Union International Education Centre Company Limited | Private company limited by shares | Live |
| Hope Union Group Company Limited | Private company limited by shares | Live |
| GLOBAL PROJECTS & FUNDING UNION (HK) LIMITED | Private company limited by shares | Live |
| China Southern Union Co., Limited | Private company limited by shares | Live |
| HY UNION INVESTMENT (CHINA) LIMITED | Private company limited by shares | Live |
| WIDE UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION GLORY GOLD HOLDINGS LIMITED | Private company limited by shares | Live |
| HONGKONG TIANTAI UNION GROUP LIMITED | Private company limited by shares | Live |
| Union Engineering Service Limited | Private company limited by shares | Live |
| Hong Kong Union Industry Group Limited | Private company limited by shares | Live |
| GOOD UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| MILLION UNION (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION BRILLIANT INT'L DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BRIGHT UNION TRADING LIMITED | Private company limited by shares | Live |
| WELL UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BRIDGE UNION COMPANY LIMITED | Private company limited by shares | Live |
| GDP Union Limited | Private company limited by shares | Live |
| CHINA SKY UNION SHIPPING CO., LIMITED | Private company limited by shares | Live |
| World's Loyalty Union Co., Limited | Private company limited by shares | Live |
| REDBUD UNION INVESTMENTS (HONG KONG) LIMITED | Private company limited by shares | Live |
| WISE UNION (CHINA) LIMITED | Private company limited by shares | Live |
| EVER UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION SOLUTIONS LIMITED | Private company limited by shares | Live |
| Shu Lun Pan Union (HK) CPA Limited | Private company limited by shares | Live |
| NEW GOLD UNION LIMITED | Private company limited by shares | Live |
| UNION UPWARD CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION BRIGHT TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| CHINA NEW ENERGY INDUSTRY UNION LIMITED | Private company limited by shares | Live |
| HONG KONG CHEER UNION LIMITED | Company limited by guarantee | Live |
| Noorislam Union Group Limited | Private company limited by shares | Live |
| JOY UNION TRADING LIMITED | Private company limited by shares | Live |
| UNION TREND DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CHARM LIMITED | Private company limited by shares | Live |
| UNION CARGO CO., LIMITED | Private company limited by shares | Live |
| GREAT CHINA FREE UNION CO., LIMITED | Private company limited by shares | Live |
| Max Union Trade Co., Limited | Private company limited by shares | Live |
| WIND UNION LIMITED | Private company limited by shares | Live |
| Unioncity Property Co., Limited | Private company limited by shares | Live |
| CHINA C&B INVESTMENT UNION GROUP LIMITED | Private company limited by shares | Live |
| EURO-SINO FINANCIAL UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| GLOBAL TRADE UNIONS CO., LIMITED | Private company limited by shares | Live |
| SWIFT UNION LIMITED | Private company limited by shares | Live |
| UNION CONCEPT LIMITED | Private company limited by shares | Live |
| UNION WIN CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION BEST HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION TRADING SERVICE (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION LEAD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CHINA ARTISTS UNION CO., LIMITED | Private company limited by shares | Live |
| DEVELOP UNION LIMITED | Private company limited by shares | Live |
| UNION RICH INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| France Wineries Union (asia) Limited | Private company limited by shares | Live Commenced dormancy on 19-Feb-2016 |
| Chinese Elite League Union Co. Id Limited | Private company limited by shares | Live |
| NEW UNION SHIPPING LIMITED | Private company limited by shares | Live |
| DRAGONS UNION GROUP MANAGEMENT (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| Sino Union Industry Limited | Private company limited by shares | Live |
| JET UNION CREATION LIMITED | Private company limited by shares | Live |
| SHANDONG UNION STEEL CO., LIMITED | Private company limited by shares | Live |
| UNION FORTUNE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| PUBLICIS UNION LIMITED | Private company limited by shares | Live |
| SZ ENTERPRISE UNION FINANCIAL GROUP LIMITED | Private company limited by shares | Live |
| SAINT'S ALP UNIONS LIMITED | Private company limited by shares | Live |
| UNION TECHNOLOGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| LAND UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| TURBO UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Well Union Investment Group Limited | Private company limited by shares | Live |
| WORLD CHINESE HEALTH UNION LIMITED | Private company limited by shares | Live |
| UNION ZCV IMAGE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNION SURPLUS TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION RICH ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION HONEST TRADING LIMITED | Private company limited by shares | Live |
| UNION ACCESS TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| GRAND UNION PROPERTY AGENCY LIMITED | Private company limited by shares | Live |
| Union-test Inspection Service Limited | Private company limited by shares | Live |
| UNION LUCKY HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SINO UNION TRADING LIMITED | Private company limited by shares | Live |
| Asean Union Co., Limited | Private company limited by shares | Live |
| PROSPER UNION MINING CO., LIMITED | Private company limited by shares | Live |
| CAPITAL UNION GROUP LIMITED | Private company limited by shares | Live |
| SUPREME UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| VAST UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| IDEAL UNION LIMITED | Private company limited by shares | Live |
| Union Rich Development Consultancy Company Limited | Private company limited by shares | Live |
| FAVOUR UNION LIMITED | Private company limited by shares | Live |
| JOINT UNION ENGINEERING (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| ATTRACTIVE UNION LIMITED | Private company limited by shares | Live |
| UNION STARS TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| GOLD UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MISSION UNION LIMITED | Private company limited by shares | Live |
| TAKE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| PROFOUND UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION KEY HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION PROFIT INDUSTRIAL LIMITED | Private company limited by shares | Live |