| LUCKY UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION METAL SERVICE CO., LIMITED | Private company limited by shares | Live |
| UNION GARMENT LIMITED | Private company limited by shares | Live |
| PACIFIC UNION (H.K.) LIMITED | Private company limited by shares | Live |
| UNION TONE LIMITED | Private company limited by shares | Live |
| TEAM UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION FORD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| DUOWEI UNION GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP SHARES CO., LIMITED | Private company limited by shares | Dissolved |
| GRAND UNION ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| MEGA UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION RICH ASIA GROUP LIMITED | Private company limited by shares | Live |
| UNION GLORY CORPORATION LIMITED | Private company limited by shares | Live |
| UNION RICH CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| Union Med. Group Limited | Private company limited by shares | Live |
| MASS UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION GAINER ASIA LIMITED | Private company limited by shares | Live |
| UNION YIELD (HK) LIMITED | Private company limited by shares | Live |
| UNION GAIN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GLOBAL CHINESE MEDIA COOPERATION UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION HARVEST DEVELOPMENT LIMITED | Private company limited by shares | Live |
| KING UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION POWER CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| METRO UNION MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNION SPREAD LIMITED | Private company limited by shares | Live |
| UNION STAR INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION ELECTRONICS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HONG KONG CREATIVE UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| WORLD UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION WEALTH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| LEGEND UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION GRAND HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION SUCCESS TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION-CITY INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| FIRST UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| UNION WISE LIMITED | Private company limited by shares | Live |
| UNION WIDE TRADING LIMITED | Private company limited by shares | Live |
| UNION RENEWABLE RESOURCES LIMITED | Private company limited by shares | Live |
| UNION GLORY LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| UNION ENTERPRISES (HONG KONG) LIMITED | Private company limited by shares | Live |
| BEST TOURISM UNION CO., LIMITED -THE- | Private company limited by shares | Live |
| Union Medical Investment Management Company Limited -The- | Private company limited by shares | Dissolved |
| GERMANY CHAOYI LIGHTING (ASIA HOUSEHOLD UNION) LIMITED | Private company limited by shares | Dissolved |
| SMART UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| INTERNATIONAL FRIENDLY RELATIONS UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| DIBO UNION LIMITED | Private company limited by shares | Dissolved |
| ELITE UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| TREASURE UNION LIMITED | Private company limited by shares | Live |
| UNION GROUP TRADING LIMITED | Private company limited by shares | Live |
| LONG UNION INTERNATIONAL BUSINESS CO., LIMITED | Private company limited by shares | Live |
| NEW UNION INTERNATIONAL CAPITAL LIMITED | Private company limited by shares | Live |
| CHEER UNION LIMITED | Private company limited by shares | Live |
| UNION CAPITAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| PACIFIC UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BIG UNION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| PROSPER UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FAME ENTERPRISES LIMITED | Private company limited by shares | Live |
| XIN MERCHANTS UNION LIMITED | Private company limited by shares | Live |
| WORLD UNION OF BIO-ELECTRICITY MEDICINE LIMITED | Private company limited by shares | Live |
| UNION GLORY PROPERTIES LIMITED | Private company limited by shares | Live |
| ASIA UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION PLAN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| WISDOM UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION ACE (HONG KONG) LIMITED | Private company limited by shares | Live |
| GOLD UNION LIMITED | Private company limited by shares | Live |
| UNION SUCCESS LOGISTICS LIMITED | Private company limited by shares | Live |
| LUCK UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION GOLD (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION GROWTH INVESTMENT LIMITED | Private company limited by shares | Live |
| GALAXY UNION LIMITED | Private company limited by shares | Live |
| UNION WAY GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| Union Hing Hong Kong Limited | Private company limited by shares | Live |
| RIGHT UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CREATION (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION STANDARD LIMITED | Private company limited by shares | Live |
| SHARP UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| GOLDEN SUN UNION LIMITED | Private company limited by shares | Live |
| CLASSICS UNION TRADING CO., LIMITED | Private company limited by shares | Live |
| GRAND BEST UNION LIMITED | Private company limited by shares | Live |
| UNION CREDIT (HK) TRADE LIMITED | Private company limited by shares | Dissolved |
| UNION SURPLUS LIMITED | Private company limited by shares | Dissolved |
| NEW GOLDEN UNION LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION CORPORATION LIMITED | Private company limited by shares | Live |
| FULL UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| WELL UNION TRADING LIMITED | Private company limited by shares | Live |
| UNION FASHION INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| EVERWIN UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| African Union Club Co., Limited | Private company limited by shares | Live |
| UNION SUCCESS INT'L GROUP LIMITED | Private company limited by shares | Live |
| UNION SECRETARIES LIMITED | Private company limited by shares | Live |
| UNION MARKETS LIMITED | Private company limited by shares | Dissolved |
| UNION DEVELOPMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION SUPREME LIMITED | Private company limited by shares | Live |
| ELITE UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION BEST HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION SUN INVESTMENT LIMITED | Private company limited by shares | Dissolved |