| UNION WORLD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HONGKONG UNION ARCHITECTURE INSTITUTE LIMITED | Private company limited by shares | Live |
| HARVEST UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CHINA INDUSTRIAL INTEGRITY UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION CITY LIMITED | Private company limited by shares | Dissolved |
| UNION MFG GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION BIO-CHEM PHARMACEUTICAL LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION CHEER LIMITED | Private company limited by shares | Dissolved |
| UNION LOGISTICS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| UNION PROFIT LOGISTICS SERVICES LIMITED | Private company limited by shares | Live |
| UNION LAND (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION FASHIONS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| UNION TARGET TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNION GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION FORCE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION COMMUNITY LIMITED | Private company limited by shares | Dissolved |
| TOP UNION (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION DEVELOPMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| WELL UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| GIANT UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| GREAT UNION COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION SMARTER LIMITED | Private company limited by shares | Live |
| ON UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| EVER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| CENTURY 21 UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION METAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION CONSTRUCTION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| WISE UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION LIMITED | Private company limited by shares | Live |
| SMART UNION LIMITED | Private company limited by shares | Live |
| UNION WEALTH DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION FAME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SMART HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| RICH UNION LIMITED | Private company limited by shares | Live |
| UNION MACHINERY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION PROFITS LIMITED | Private company limited by shares | Live |
| UNION WEALTH (ASIA) LIMITED | Private company limited by shares | Dissolved |
| UNION TYRE BATTERY COMPANY LIMITED | Private company limited by shares | Live |
| UNION MARINE PRODUCTS TRADING CO., LIMITED | Private company limited by shares | Live |
| WORLD UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| WORLD UNION PUBLISH GROUP LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION WEALTHY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION SUN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION (CHINA) PROCUREMENT LIMITED | Private company limited by shares | Dissolved |
| UNION-RICH TEXTILES TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION GAINER LIMITED | Private company limited by shares | Dissolved |
| UNION GAINER HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL STUDENT UNION CO., LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG CENTURY UNION EXHIBITION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| T.F.F. INTERNATIONAL UNION GROUP (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ASIAN UNION EXPORT TRADING LIMITED | Private company limited by shares | Dissolved |
| POWER UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| NEW UNION INDUSTRIAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION CULT LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL CONSTRUCTION DESIGN (HONGKONG) LIMITED | Private company limited by shares | Live |
| UNION SUCCESS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION VICTORIA LIMITED | Private company limited by shares | Dissolved |
| UNION WELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY LIMITED | Private company limited by shares | Live |
| GRAND UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SKY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION CORPORATE SERVICES LIMITED | Private company limited by shares | Live |
| UNION ELITE LIMITED | Private company limited by shares | Dissolved |
| UNION SHIPPING LIMITED | Private company limited by shares | Live |
| UNION TRADE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION VICTORY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION METAL LIMITED | Private company limited by shares | Live |
| UNION HEALTH GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION METAL PLASTIC FACTORY LIMITED | Private company limited by shares | Live |
| UNION TECHNIC COMPANY LIMITED | Private company limited by shares | Live |
| GRANFORT UNION LIMITED | Private company limited by shares | Dissolved |
| BEST UNION GARMENT LIMITED | Private company limited by shares | Dissolved |
| NEW UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SINO UNION (CHINA) LIMITED | Private company limited by shares | Dissolved |
| CHINA INTERNATIONAL WINE ENTERPRISE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT HONG KONG LIMITED | Private company limited by shares | Live |
| UNION WIN INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| SINCERE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| ROY UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SKY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNIONFORTUNE POWER INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| SUPER UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GLOBAL BUDDHISM COMMERCIAL UNION LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION GENESIS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GROUP UNION LIMITED | Private company limited by shares | Dissolved |
| UNION SINGKONG LIMITED | Private company limited by shares | Live |
| GLOBAL UNION PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| UNION HERO ENTERPRISES LIMITED | Private company limited by shares | Live |
| BEEPROPOLIS & DIABETES INTERNATIONAL UNION LABORATORY LIMITED | Private company limited by shares | Live |
| UNION HEALTH MEDICAL SUPPLY COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |