| JOINT UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION GLOBAL TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| UNION POWER TRADING LIMITED | Private company limited by shares | Live |
| CROWN UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HONG KONG UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION (CONSTRUCTION) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBE TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION OVERSEAS LIMITED | Private company limited by shares | Live |
| TIME UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| STATE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GOLDEN UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION MILLION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HONOR LIMITED | Private company limited by shares | Live |
| ROYAL UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION TIME ENTERPRISES LIMITED | Private company limited by shares | Live |
| INTERNATIONAL UNION FAR EAST LIMITED | Private company limited by shares | Live |
| UNION RISE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION RISE ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION RISE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION CONTROL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SOURCE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNIONFORTUNE ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| NEW UNION INTERNATIONAL PROPERTIES LIMITED | Private company limited by shares | Live |
| PARADIGM UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| BEST UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| AUTO UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION MINERAL (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| Union Stem Cell & Gene (Int'l) Limited | Private company limited by shares | Dissolved |
| GOLDEN UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| RICH UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION ART INVESTMENT LIMITED | Private company limited by shares | Live |
| SUPER UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION BEST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CHANNEL LIMITED | Private company limited by shares | Live |
| UNION GOOD DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA (H.K.) LIMITED | Private company limited by shares | Live |
| UNION GOOD (H.K.) LIMITED | Private company limited by shares | Live |
| UNION ASIA HOLDINGS LIMITED | Private company limited by shares | Live |
| EXCEL UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| NEW UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION FULL LIMITED | Private company limited by shares | Dissolved |
| UNION WELL INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION OF FADIAN LAW GROUP CONSULTANCY LIMITED -THE- | Private company limited by shares | Live Commenced dormancy on 01-Jun-2007 |
| UNION STAR INC. LIMITED | Private company limited by shares | Dissolved |
| RICH UNION INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL CREDIT ORGANIZATION UNION ASSOCIATION LIMITED | Private company limited by shares | Live |
| UNION ASIA ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION CHANNEL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CHANNEL INVESTMENT LIMITED | Private company limited by shares | Live |
| ASIA UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION GOOD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION POWER TECH LIMITED | Private company limited by shares | Live |
| UNION TRADER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION TRADER INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION MILL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| MONKEY UNION LIMITED | Private company limited by shares | Live |
| UNION GREAT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| STRONG UNION (HONG KONG) TRADING LIMITED | Private company limited by shares | Live |
| UNION CHEMTECH INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION PACIFIC INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION CROWN (HK) LIMITED | Private company limited by shares | Live |
| OCEAN UNION (CHINA) LIMITED | Private company limited by shares | Live |
| NEW UNION FAR EAST LIMITED | Private company limited by shares | Live |
| GLORY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ALLIED UNION INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GLORY UNION ELECTRONIC (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION GOOD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION EAST LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION (H.K.) LIMITED | Private company limited by shares | Live |
| BEST UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BASE (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| MAX UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION BRIGHT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION COSMOS DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HK UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION HONEST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LEADER UNION LIMITED | Private company limited by shares | Dissolved |
| WIN STONE UNION METAL LOGISTIC LIMITED | Private company limited by shares | Dissolved |
| SUPERB UNION LIMITED | Private company limited by shares | Dissolved |
| UNIONSTAR INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GLOBAL BUDDHISM BUSINESSMEN UNION LIMITED | Company limited by guarantee | Dissolved |
| CHINA SPORTSMAN (HONGKONG) UNION LIMITED | Company limited by guarantee | Live |
| UNION GOOD INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA TRADING LIMITED | Private company limited by shares | Dissolved |
| BEL AIR UNION LIMITED | Private company limited by shares | Dissolved |
| BM UNION COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| CHAMP UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ITALY YI BEI ER UNION DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| 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 |