| UNION GAINER ASIA LIMITED | Private company limited by shares | Live |
| UNION YIELD (HK) LIMITED | Private company limited by shares | Live |
| LEO UNITED LIMITED | Private company limited by shares | Live |
| UNION GAIN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNILUMIN TECHNOLOGY (HONG KONG) 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 |
| SHANGHAI SINOTEX UNITED (HK) CO., LIMITED | Private company limited by shares | Live |
| Universe Inspiration Technology 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 |
| ASIA UNITE 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 |
| UNIVERSE UNITED LIMITED | Private company limited by shares | Live |
| WEALTH UNIVERSE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNION WEALTH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| TEAMWELL UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNISOURCE 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 |
| UNISON SKY LIMITED | Private company limited by shares | Live |
| UNI-SUCCESS SHIPPING LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNI-CHANNEL PACIFIC LIMITED | Private company limited by shares | Live |
| UNI-TEC COMPANY LIMITED | Private company limited by shares | Live |
| UNIQUE MARK LIMITED | Private company limited by shares | Live |
| UNIVERSAL LINK TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| SILVER UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG UNION-CITY INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| UNIWAY GARMENT LIMITED | Private company limited by shares | Live |
| Taiwan Unified Cosmeceutical Industrial Co., Limited | Private company limited by shares | Live |
| FIRST UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| GLORY UNITY LIMITED | Private company limited by shares | Live |
| METRO UNIQUE LIMITED | Private company limited by shares | Live |
| UNION WISE LIMITED | Private company limited by shares | Live |
| ORIENT UNITED LIMITED | Private company limited by shares | Dissolved |
| UNILUMIN CO., LIMITED | Private company limited by shares | Live |
| UNIQUE HEALTH SOLUTIONS COMPANY LIMITED | Private company limited by shares | Live |
| UNION WIDE TRADING LIMITED | Private company limited by shares | Live |
| CHINA UNITED ASSOCIATION LIMITED | Company limited by guarantee | Live |
| UNION RENEWABLE RESOURCES LIMITED | Private company limited by shares | Live |
| UNICON TRADING CO., LIMITED | Private company limited by shares | Live |
| BRACE UNIVERSE (INTERNATIONAL) GROUP HOLDING LIMITED | Private company limited by shares | Dissolved |
| UNIQUE WINE LIMITED | Private company limited by shares | Live |
| HK UNIFIED XIANGCHENGDUO INT'L CO., LIMITED | Private company limited by shares | Dissolved |
| Universe International Group Limited | Private company limited by shares | Live |
| UNION GLORY LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| UNITED WORKS CO., LIMITED | Private company limited by shares | Live |
| UNION ENTERPRISES (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNITED SURE LIMITED | Private company limited by shares | Dissolved |
| 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 |
| NEW UNITED (ASIA) INVESTMENT LIMITED | Private company limited by shares | Live |
| SMART UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| Unilution Group Limited | Private company limited by shares | Live |
| INTERNATIONAL FRIENDLY RELATIONS UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| UNIQUE UNIVERSAL TRADING LIMITED | Private company limited by shares | Dissolved |
| DIBO UNION LIMITED | Private company limited by shares | Dissolved |
| UNISON INTERNATIONAL CORPORATION 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 |
| HongKong Universe Billiards Culture Media International Limited | Private company limited by shares | Dissolved |
| 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 |
| WELLWOOD UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| UNIQUE TOP TECHNOLOGY LIMITED | Private company limited by shares | Live |
| 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 |
| TAP ATTIRE UNIFORM LIMITED | Private company limited by shares | Live |
| XIN MERCHANTS UNION LIMITED | Private company limited by shares | Live |
| Unifibon (Asia) Limited | Private company limited by shares | Live |
| WORLD UNION OF BIO-ELECTRICITY MEDICINE LIMITED | Private company limited by shares | Live |
| UNIBANG SHIPPING CO., 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 |
| UNIQUE SQUARE LIMITED | Private company limited by shares | Live |
| UNION GOLD (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNITED GOLD ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNIVERSAL SPONSOR ASSOCIATION LIMITED | Private company limited by shares | Live |
| UNI-CONCEPT LIMITED | Private company limited by shares | Live |