| GROUP UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION FIELD INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION CHOICE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION TEAM INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION MACHINERY & ENGINEERING (ASIA) LIMITED | Private company limited by shares | Live |
| WELL UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GAIN (H.K.) LIMITED | Private company limited by shares | Live |
| OCEAN UNION (H.K.) LIMITED | Private company limited by shares | Live |
| UNION JADE LIMITED | Private company limited by shares | Live |
| CROWN UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SEA UNION SHIPPING & TRADING CO., LIMITED | Private company limited by shares | Live |
| UNION BEST MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CHOICE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION CHINESE LIMITED | Private company limited by shares | Live |
| UNION BRIGHT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SUPPO BATTERY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA PUBLIC WELFARE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CHOICE LIMITED | Private company limited by shares | Live |
| UNION VANTAGE LIMITED | Private company limited by shares | Dissolved |
| UNION WISE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION WISE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ABLE UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TOP UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| STAR UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HONG KONG TOURISM PROFESSIONALS UNION LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC MANUFACTURING LIMITED | Private company limited by shares | Live |
| SILVER UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNION LIMITED | Private company limited by shares | Dissolved |
| UNION PEAK HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| PROSPER UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CONCEPT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION CONCEPT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| PORT UNION CONTAINER LINE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION P.M.E CO., LIMITED | Private company limited by shares | Live |
| UNION MARK LIMITED | Private company limited by shares | Live |
| UNION GALAXY LIMITED | Private company limited by shares | Live |
| UNION SUPREME INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION PRIME INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION MARK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION TONE LIMITED | Private company limited by shares | Dissolved |
| UNION SKY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WIN UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ETERNAL UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION NICE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION NICE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION NICE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION REGENT TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION HARVEST INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINA UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| WINNING UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP (HK) INTERNATIONAL CO., LIMITED -THE- | Private company limited by shares | Live |
| EVER-GLORY UNION (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION STEEL HOLDING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION VIEW INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION WINNER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WINNER TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION RISE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION HARVEST ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION HARVEST ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION SUCCESS CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION (CHINA TRADE) LIMITED -THE- | Private company limited by shares | Dissolved |
| UNION ENTERPRISES (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LINK UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| LONG UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BEST UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION MAX (H.K.) LIMITED | Private company limited by shares | Dissolved |
| WISE UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WISE UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| JOINT UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| WORLD CHINESE ENTREPRENEUR UNION ASSOCIATION LIMITED | Private company limited by shares | Live |
| UNION DRAGON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION GLORY (H.K.) LIMITED | Private company limited by shares | Live |
| UNION SHINE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| JOY UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| DYNAMIC UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION DYNAMIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CHINA TECHNOLOGY UNION (HK) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| ROY UNION LIMITED | Private company limited by shares | Live |
| GRAND CHINA UNION (HOLDINGS) CORPORATION, LIMITED | Private company limited by shares | Dissolved |
| OVERSEAS UNION INVESTMENT (HOLDING) LIMITED | Private company limited by shares | Live |
| UNION FIELD TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION TALENT INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION FIELD (ASIA) LIMITED | Private company limited by shares | Dissolved |
| E. UNION ENGINEERING (HK) LIMITED | Private company limited by shares | Live |
| UNION WAY SERVICE (H.K.) LIMITED | Private company limited by shares | Live |
| PAN UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WIN INTERNATIONAL INC. LIMITED | Private company limited by shares | Live |
| LUCKY UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |