| UNION STEP INVESTMENTS LIMITED | Private company limited by shares | Live |
| Union Luxe Industrial Limited | Private company limited by shares | Live |
| United Power Shareholding Company Limited | Private company limited by shares | Live |
| UNIFIED GLOBAL TRADING LIMITED | Private company limited by shares | Live |
| UNI-CENTURY FINANCE CO. LIMITED | Private company limited by shares | Live |
| UNITY GENERAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| UNIWELL INTERNATIONAL TRADE (H.K.) CO., LIMITED | Private company limited by shares | Live |
| UNION MINING AND ENERGY ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| Union International Consultancy Co., Limited | Private company limited by shares | Live |
| Union Imports and Exports Limited | Private company limited by shares | Live |
| RICH UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SMART UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| UNIS SP Limited | Private company limited by shares | Live |
| Unicron Limited | Private company limited by shares | Live |
| UNIVERSE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| Unimit (Hong Kong) Co., Limited | Private company limited by shares | Live |
| UNION TOP TRADING LIMITED | Private company limited by shares | Live |
| UNITED IDEA LIMITED | Private company limited by shares | Live |
| UNION TEAM CORPORATION LIMITED | Private company limited by shares | Live |
| UNITED TALENT INVESTMENTS LIMITED | Private company limited by shares | Live |
| SMART UNION INC LIMITED | Private company limited by shares | Live |
| PROFESSIONAL UNION LIMITED | Private company limited by shares | Live |
| UNIVERSAL FAR EAST INC LIMITED | Private company limited by shares | Live |
| ASIA UNION LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION ACCESS INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| UNION (CHINA) CONSTRUCTION MACHINERY CO., LIMITED | Private company limited by shares | Live |
| UNIVERSAL STAR CHEM (HONG KONG) LIMITED | Private company limited by shares | Live |
| GREEN UNIVERSAL LIMITED | Private company limited by shares | Live |
| Union Outsourcing Service Co., Limited | Private company limited by shares | Live |
| UNIVERSAL SMART INC LIMITED | Private company limited by shares | Live |
| PROFESSIONAL UNION INC LIMITED | Private company limited by shares | Live |
| UNIVERSAL SMOOTH LIMITED | Private company limited by shares | Live |
| UNION ELITE CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| UNION LIGHT INC LIMITED | Private company limited by shares | Live |
| UNITED TIMES LIMITED | Private company limited by shares | Live |
| UNIVERSE SUPREME LIMITED | Private company limited by shares | Live |
| M&H UNIVERSAL LIMITED | Private company limited by shares | Live |
| Uni2uni Consulting Limited | Private company limited by shares | Live |
| China Universities Media Limited | Private company limited by shares | Live |
| UNITED DRAGON INC LIMITED | Private company limited by shares | Live |
| Social Unlimited Limited | Private company limited by shares | Live |
| De-bridge Universal Limited | Private company limited by shares | Live |
| ALL UNION LIMITED | Private company limited by shares | Live |
| Foulger Underwood HK Limited | Private company limited by shares | Live |
| UNION INNOVATION ELECTRONICS LIMITED | Private company limited by shares | Live |
| UNIVERSE ELECTRONICS LIMITED | Private company limited by shares | Live |
| UNION AIR & SEA CARGO CO., LIMITED | Private company limited by shares | Live |
| UK CHINA STUDENT UNION LIMITED | Private company limited by shares | Live |
| UNIVERSACV CO., LIMITED | Private company limited by shares | Live |
| Topglory Union Limited | Private company limited by shares | Live |
| XI'AN EASTERN UNION PETROLEUM EQUIPMENT LIMITED | Private company limited by shares | Live |
| Sunrise Sailboat Union Development Co., Limited | Private company limited by shares | Live |
| CHT Union Development Co., Limited | Private company limited by shares | Live |
| UNITED TECH CO. PVT LIMITED | Private company limited by shares | Live |
| UniProx Global Company Limited | Private company limited by shares | Live |
| WORLD UNION CRUISE LIMITED | Private company limited by shares | Live |
| Union Investment (HongKong) Company Limited | Private company limited by shares | Live |
| EASTERN UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| CHINA VEGETARIAN DIET UNION LIMITED | Private company limited by shares | Live |
| UNITED UNIVERSE LIMITED | Private company limited by shares | Live |
| UNION WEALTH INC LIMITED | Private company limited by shares | Live |
| UNITED SKYLAND LIMITED | Private company limited by shares | Live |
| UNITED ASIA INC LIMITED | Private company limited by shares | Live |
| GOLDEN UNION PACKING MATERIAL COMPANY LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL FINANCIAL UNION CO., LIMITED | Private company limited by shares | Live |
| GREAT UNIVERSE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Unique Toys Limited | Private company limited by shares | Live |
| CHINA INTERNATIONAL ENERGY UNION CO., LIMITED | Private company limited by shares | Live |
| UNIVERSAL MARITIME SECURITY (ASIA) LIMITED | Private company limited by shares | Live |
| UNION PAINTING ENGINEERING LIMITED | Private company limited by shares | Live |
| UNION HOPE CATERING DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNICUS (ASIA) LIMITED | Private company limited by shares | Live |
| Fly Rise Universal Limited | Private company limited by shares | Live |
| EASE UNION LIMITED | Private company limited by shares | Live |
| E-Town Union (HK) Limited | Private company limited by shares | Live |
| NOVA UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION RIVER HOLDINGS LIMITED | Private company limited by shares | Live |
| BIG UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION AWARD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GERMANY JIPU UNIVERSAL MACHINERY LIMITED | Private company limited by shares | Live |
| Hyper System Union Limited | Private company limited by shares | Live |
| SooChow Union Development Industrial Co., Limited | Private company limited by shares | Live |
| United Trademarks Group Limited | Private company limited by shares | Live |
| UNION TACT HOLDINGS LIMITED | Private company limited by shares | Live |
| Fortune Union International Investment Limited | Private company limited by shares | Live |
| Unifi Limited | Private company limited by shares | Dissolved |
| UNION SHINE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| TOOLS UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION OCEAN SHIPPING SHANGHAI CO., LIMITED | Private company limited by shares | Live |
| UNION CHINA & ASIA HOLDINGS LIMITED | Private company limited by shares | Live |
| UNDERTHEPILLOW LIMITED | Private company limited by shares | Live |
| UNITED ELITE INC LIMITED | Private company limited by shares | Live |
| UNIVERSAL TEAM INC LIMITED | Private company limited by shares | Live |
| UNITECH TRADING (H.K.) CO., LIMITED | Private company limited by shares | Live |
| AMAZING UNION LIMITED | Private company limited by shares | Live |
| HANKUN UNION (HK) CULTURE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Uniblu Limited | Private company limited by shares | Live |
| Unichem Enterprise Limited | Private company limited by shares | Live |
| EXPLORE UNIVERSE HONG KONG TRADING LIMITED | Private company limited by shares | Live |