| UNION SKY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL HOLDINGS LIMITED | Private company limited by shares | Live |
| SILVER UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TIE UNION ENERGY MINING LIMITED | Private company limited by shares | Dissolved |
| SKY UNION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| WORLD BUDDHISM BUSINESSMEN UNION LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION LINK CREATIONS LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION SHIPBUILDING COMPANY LIMITED | Private company limited by shares | Live |
| WH UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SENSE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| MULTI UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HIGHT UNION INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| WORLD CHINESE INTERNATIONAL DANCING UNION LIMITED | Private company limited by shares | Live |
| Golden Union Holding Co., Limited | Private company limited by shares | Live |
| UNION WORLD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ON WORLDWIDE LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION CORPORATION LIMITED | Private company limited by shares | Live |
| GOOD UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION HONG KONG ENTERPRISES LIMITED | Private company limited by shares | Live |
| JOYFUL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION RANK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FUND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| THOUSANDS UNION LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL YOGA UNION (HONGKONG) LIMITED | Private company limited by shares | Live |
| UNION SOURCE LIMITED | Private company limited by shares | Dissolved |
| UNION COMPONENTS (HK) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION WIDE (H.K.) LIMITED | Private company limited by shares | Live |
| SOUTH UNION INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION POWER (CHINA) LIMITED | Private company limited by shares | Live |
| EDUCATION OUTFIT UNION CHINA LIMITED | Private company limited by shares | Dissolved |
| UNION MERCHANT-BELIEF HONG KONG HOLDING LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION (HK) INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TOP UNION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| DYNAMIC UNION LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL BUSINESS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| UNION TIME (H.K.) LIMITED | Private company limited by shares | Live |
| UNION FINANCE (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| UNION MAX FAR EAST LIMITED | Private company limited by shares | Dissolved |
| UNION INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ORIENT UNION LIMITED | Private company limited by shares | Live |
| UNION SKY LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD INC. LIMITED | Private company limited by shares | Live |
| INTELLIGENT UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| WISE UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION EAGLE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION BEST (CHINA) LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION (HK) LIMITED | Private company limited by shares | Dissolved |
| RICH UNION ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GLOBE INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION RICH INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| BEST UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION POWER WORLDWIDE LIMITED | Private company limited by shares | Live |
| MEGA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION TRAVEL LIMITED | Private company limited by shares | Live |
| UNION ART HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION LAND LIMITED | Private company limited by shares | Dissolved |
| WISE UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| SAFER UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION COSCO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HONGKONG UNION CENTURY GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION FAIR INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| MEGA UNION ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| UNION FORTRESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| EVER UNION FURNITURE CO., LIMITED | Private company limited by shares | Live |
| UNION PROFIT CHINA LIMITED | Private company limited by shares | Live |
| UNION PROFIT ASIA LIMITED | Private company limited by shares | Dissolved |
| FAR UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION WORLD INVESTMENT (GROUP) LIMITED | Private company limited by shares | Dissolved |
| UNION STAR LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| UNION BEARINGS CO., LIMITED | Private company limited by shares | Dissolved |
| TOPSTAR INTERNATIONAL UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION GLORY TRADING LIMITED | Private company limited by shares | Live |
| UNION PROGRESS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI NEW UNION HOME COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SPEED EXPRESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION WORLDWIDE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION TEXTILE COMPANY LIMITED | Private company limited by shares | Live |
| UNION MANUFACTURERS LIMITED | Private company limited by shares | Live |
| UNION BRIDGE LIMITED | Private company limited by shares | Live |
| UNION OCEAN INTERNATIONAL (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| EARN UNION LIMITED | Private company limited by shares | Dissolved |
| CITY UNION LOGISTICS HOLDING LIMITED | Private company limited by shares | Live |
| DRAGON UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| VICTORY UNION CONSULTATION LIMITED | Private company limited by shares | Dissolved |
| UPPER UNION HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| Yome (Union) AC & Refrigerant Parts Limited | Private company limited by shares | Dissolved |
| UNION LINK ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| FINE UNION WORLDWIDE LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| H.K. UNION INTERNATIONAL EXHIBITION CO., LIMITED | Private company limited by shares | Live |
| UNION STAR HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| GLOBAL CHINESE ENTREPRENEURS UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| FRANCE TIANSHU USA UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION DYNASTY LIMITED | Private company limited by shares | Live |