| UNION EARN LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUCK UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| BEST UNION MULTIMEDIA CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA INTERNATIONAL UNION PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| UNION (CHINA - H.K.) TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS COMMERCE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA 2000 LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION MAX HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHTNESS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION PARK CONSULTANCY LIMITED | Private company limited by shares | Live |
| TOP UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION WIDE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| OCEAN UNION (HONG KONG) INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION TRANSPORT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| UNION KNOPF (HK) LIMITED | Private company limited by shares | Live |
| UNION FORTRESS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION FIDELITY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION MART HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| FOOK LEE UNION MAINTENANCE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD 2000 LIMITED | Private company limited by shares | Dissolved |
| EASTERN UNION (TECHNOLOGY) LIMITED | Private company limited by shares | Dissolved |
| UNION CLEANING SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| WEAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SUN UNION TRADING LIMITED | Private company limited by shares | Live |
| BRIGHT UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GREAT (BOB) INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| AUSTRALIA FAR EAST UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BOCUBE MANUFACTURING LIMITED | Private company limited by shares | Live |
| GREAT UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION WEALTHY LIMITED | Private company limited by shares | Live |
| UNION KINGDOM LIMITED | Private company limited by shares | Live |
| UNION HORIZON LIMITED | Private company limited by shares | Dissolved |
| PARK UNION SPORTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLY UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION WORLD 21 CENTURY LIMITED | Private company limited by shares | Dissolved |
| UNION CREATION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FAITH STEVEDORE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PLUS LIMITED | Private company limited by shares | Dissolved |
| UNION CONSTRUCTION (N.T. DEVELOPMENT) COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION METAL PRODUCTION LIMITED | Private company limited by shares | Live |
| UNION BRIDGE LIMITED | Private company limited by shares | Dissolved |
| EVER UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| EVER UNION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL CHEMICALS LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION ONLINE LIMITED | Private company limited by shares | Dissolved |
| UNION ETERNAL ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| WIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| WEAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FALCON LIMITED | Private company limited by shares | Live |
| BIG UNION MOTORS (GROUP) LIMITED | Private company limited by shares | Live |
| UNION FIELD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION (FAR EAST) LIMITED | Private company limited by shares | Live |
| UNION GOOD HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| LION UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| CHARTER UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNION JOINT (HONG KONG) LIMITED | Private company limited by shares | Live |
| WING LEE INTERNATIONAL (H.K.) FUND UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CHANCE GROUP (MANUFACTURING) LIMITED | Private company limited by shares | Live |
| OVERSEAS UNION TRADING COMPANY LIMITED | Private company limited by shares | Live |
| UNION TREND HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION CREATION CONSTRUCTION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| VICTORY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION TRANSPORTATION (FAR EAST) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CITY UNION (GROUP) LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION RANK LIMITED | Private company limited by shares | Live |
| SINO UNION INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION LIFE LIMITED | Private company limited by shares | Live |
| WORLD UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| EXCEL UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION INVESTMENT HOLDINGS LIMITED | Private company limited by shares | Live |
| BEST UNION (HK) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BOND DEVELOPMENT LIMITED | Private company limited by shares | Live |
| O & YH UNION FOOTBALL CLUB LIMITED | Company limited by guarantee | Dissolved |
| GRANT UNION LIMITED | Private company limited by shares | Live |
| SMART UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| BEST UNION TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GLOBE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SPEED UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION TRANSPORTATION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| UNION TRUTH (PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| UNION GRANDE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION FAVOUR LIMITED | Private company limited by shares | Dissolved |