| CHINESE CAPITAL UNION ASSET MANAGEMENT LIMITED | Private company limited by shares | Live |
| UNION UP TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SUN UNION FINANCE LIMITED | Private company limited by shares | Live |
| CHINA UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| KINGWAY UNION TRANSPORTATION CO., LIMITED | Private company limited by shares | Live |
| UNION PACIFIC DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION DYNAMIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION SPEED ENTERPRISES LIMITED | Private company limited by shares | Live |
| Goodwill Union Service Limited | Private company limited by shares | Live |
| UNIONWEALTH INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION STAR FAR EAST LIMITED | Private company limited by shares | Live |
| Fitness Union International Group Limited | Private company limited by shares | Live |
| UNITED ISLAMIC WELFARE UNION LIMITED | Company limited by guarantee | Live |
| UNION STANDARD INC LIMITED | Private company limited by shares | Live |
| GREAT UNION COMPUTER LIMITED | Private company limited by shares | Live |
| ETERNAL UNION (ASIA) LIMITED | Private company limited by shares | Live |
| European Union Sustainable Urbanization Alliance Limited | Private company limited by shares | Live |
| SINO UNION LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Live |
| NINGBO GENERAL UNION CO., LIMITED | Private company limited by shares | Live |
| UNION BRIDGE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GLORIOUS UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HONGKONG INTERNATIONAL BUYERS UNION CO. LIMITED | Private company limited by shares | Live |
| MCC SINO UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Community Network Union Limited | Company limited by guarantee | Dissolved |
| MODA UNION HK CO., LIMITED | Private company limited by shares | Live |
| ASIAN UNION CONSULTANT LIMITED | Private company limited by shares | Live |
| HONG KONG UNION INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| International Graphene Industry Union Limited | Private company limited by shares | Live |
| UNION CITY TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SUNNY UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION FIELD HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION WISH INVESTMENTS LIMITED | Private company limited by shares | Live |
| Chinese medical union (China) Limited | Private company limited by shares | Live |
| UNION DRAGON LIMITED | Private company limited by shares | Live |
| ANDY UNION LIMITED | Private company limited by shares | Live |
| UNION SUNWORLD LIMITED | Private company limited by shares | Live |
| UNION SKY WEALTH LIMITED | Private company limited by shares | Live |
| FIRST UNION (H.K.) LIMITED | Private company limited by shares | Live |
| Union Construction Material Limited | Private company limited by shares | Live |
| Innovation Intelligence Union Group Company Limited | Private company limited by shares | Live |
| STAR UNION DYNASTY LIMITED | Private company limited by shares | Live |
| PEAK UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| FIRST UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| 88 UNION GLOBAL LIMITED | Private company limited by shares | Live |
| 88 UNION LIMITED | Private company limited by shares | Live |
| SUCCESS UNION INCORPORATION LIMITED | Private company limited by shares | Live |
| UNION MAX INC LIMITED | Private company limited by shares | Live |
| GOLDEN UNION CENTURY LIMITED | Private company limited by shares | Live |
| FINFO UNION LIMITED | Private company limited by shares | Live |
| ETIHAD INTERNATIONAL UNION LIMITED | Private company limited by shares | Live |
| UNION CORPORATION LIMITED | Private company limited by shares | Live |
| SKY UNION LIMITED | Private company limited by shares | Live |
| RISE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| China Architecture Sharing Union Limited | Private company limited by shares | Live |
| TOPMAX UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Asia Union Construction Co., Limited | Private company limited by shares | Live |
| Ever Union Properties Development Co Limited | Private company limited by shares | Live |
| NEW WORLD UNION LIMITED | Private company limited by shares | Live |
| CHINA DIGITAL CURRENCY UNION RESERVES LIMITED | Private company limited by shares | Live |
| VICTORY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIVERSE UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION TIMES HONG KONG LIMITED | Private company limited by shares | Live |
| UNION STRONG (HONG KONG) LIMITED | Private company limited by shares | Live |
| Pacifico Union Co., Limited | Private company limited by shares | Live |
| GROUP UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION LINK INC LIMITED | Private company limited by shares | Live |
| UNION EAST ASIA LIMITED | Private company limited by shares | Live |
| UNION 88 LIMITED | Private company limited by shares | Live |
| ACHIEVE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Dec-2017 |
| UNION WISE ENTERPRISES LIMITED | Private company limited by shares | Live |
| Hongkong One Union Trade Co., Limited | Private company limited by shares | Live |
| UNION HONG KONG HOLDINGS LIMITED | Private company limited by shares | Live |
| Win-win Union Cultural&Creative Co., Limited | Private company limited by shares | Live |
| UNION STAR 88 LIMITED | Private company limited by shares | Live |
| UNION TREND 88 LIMITED | Private company limited by shares | Live |
| UNION WAY 88 LIMITED | Private company limited by shares | Live |
| SKY UNION MEGA TRADE LIMITED | Private company limited by shares | Live |
| UNION GAIN MEGA TRADE LIMITED | Private company limited by shares | Live |
| UNION GOODRICH LIMITED | Private company limited by shares | Live |
| UNION SMART INC LIMITED | Private company limited by shares | Live |
| UNION SURPLUS LIMITED | Private company limited by shares | Live |
| UNION GOLDS LIMITED | Private company limited by shares | Live |
| UNION SKYRICH LIMITED | Private company limited by shares | Live |
| UNION SMART RICH LIMITED | Private company limited by shares | Live |
| UNION TREASURE INC LIMITED | Private company limited by shares | Live |
| WINERIES OF CHILE UNION COMMITTEE LIMITED | Private company limited by shares | Live |
| UNION BEST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION WELL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK Easy Union International Trade Limited | Private company limited by shares | Live |
| GRAND UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| MILLION UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION GOOD INC LIMITED | Private company limited by shares | Live |
| UNION WISDOM INDUSTRIAL LIMITED | Private company limited by shares | Live |
| WIN UNION INCORPORATION LIMITED | Private company limited by shares | Live |
| UNION WINTIME LIMITED | Private company limited by shares | Live |
| UNION FULL INC LIMITED | Private company limited by shares | Live |
| UNION RESEARCH LIMITED | Private company limited by shares | Live |
| WELL UNION ELECTRONIC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GREAT UNION INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |