| UNION CITY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION EXCEL (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNITED SHEEN LIMITED | Private company limited by shares | Live |
| HK UNIVERSAL INDUSTRY & TRADE LIMITED | Private company limited by shares | Live |
| Zhuoyue Union International Group Co., Limited | Private company limited by shares | Live |
| UNIQUE PRAISE LIMITED | Private company limited by shares | Live |
| UNIVERSAL MAX GROUP LIMITED | Private company limited by shares | Live |
| AURAM UNIVERSAL LIMITED | Private company limited by shares | Live |
| United Logistic Freight Co., Limited | Private company limited by shares | Live |
| Union Currency Exchange Co. Limited | Private company limited by shares | Live |
| GOLDCITY INTERNATIONAL TRADE UNION GROUP LIMITED | Private company limited by shares | Live |
| UNION COMMERCIAL LIMITED | Private company limited by shares | Live |
| TOPGOLD UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNITED BOARD INVESTMENT LIMITED | Private company limited by shares | Live |
| MHT UNION LIMITED | Private company limited by shares | Dissolved |
| UNISON INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Union Sky Industry Co., Limited | Private company limited by shares | Live |
| UNION CROWN GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION CODE LIMITED | Private company limited by shares | Live |
| OCEAN UNION AIR CONDITIONING & ENGINEERING LIMITED | Private company limited by shares | Live |
| HUAYI UNION (CHINA) INVESTMENT LIMITED | Private company limited by shares | Live |
| JET UNION TRANSPORT LIMITED | Private company limited by shares | Live |
| UNIVERSAL RENEWABLE ENERGY LIMITED | Private company limited by shares | Live |
| UNION RICH FOOTWEAR LIMITED | Private company limited by shares | Live |
| UNION RICH CRANE TRUCK TRANSPORTATION LIMITED | Private company limited by shares | Live |
| UNIQUE CROWN LIMITED | Private company limited by shares | Live |
| JOINT UNION INC LIMITED | Private company limited by shares | Live |
| UNION GIANT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION WINNER (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNIVERSE LIGHT TRADE LIMITED | Private company limited by shares | Live |
| UNION DENTAL LIMITED | Private company limited by shares | Live |
| GLOBAL UNIVERSE INC LIMITED | Private company limited by shares | Live |
| PAC UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNIRICH INC LIMITED | Private company limited by shares | Live |
| UNIVERSAL PACIFIC LIMITED | Private company limited by shares | Live |
| RISING UNION (HK) LIMITED | Private company limited by shares | Live |
| GOLDEN UNION WORLDWIDE LIMITED | Private company limited by shares | Live |
| UNI-HEART LIMITED | Private company limited by shares | Live |
| STONE CARE VD UNION LIMITED | Private company limited by shares | Live |
| GREEN RISE UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNION MOBILE LIMITED | Private company limited by shares | Live |
| UNION STRENGTH DEVELOPMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| CREATOR UNIVERSAL TRADING LIMITED | Private company limited by shares | Live |
| KING UNISON TRADING LIMITED | Private company limited by shares | Live |
| UNI-GALAXY LIMITED | Private company limited by shares | Live |
| UNION KEEN LIMITED | Private company limited by shares | Live |
| UNITY SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |
| UNION WELL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Eurasian International Union (Italy) Limited | Private company limited by shares | Live |
| UNIVERSE OCEAN (HK) CO., LIMITED | Private company limited by shares | Live |
| UNITED HORIZON LIMITED | Private company limited by shares | Live |
| WIN UNIVERSAL LIMITED | Private company limited by shares | Live |
| BEENAT UNION BEARING INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| EVER UNION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HEALTH UNION CO., LIMITED | Private company limited by shares | Live |
| EAST UNION TRADING LIMITED | Private company limited by shares | Live |
| TIME UNITED ASSETS LIMITED | Private company limited by shares | Live |
| EASTERN UNION LIMITED | Private company limited by shares | Live |
| MODERN UNION LIMITED | Private company limited by shares | Live |
| Excellent Union Technology (HongKong) Co., Limited | Private company limited by shares | Dissolved |
| United Wealth Holding Group Limited | Private company limited by shares | Live |
| Hongkong Ismay (International) Underwear Garment Co., Limited | Private company limited by shares | Live |
| Shenzhen Top Union Technology Co., Limited | Private company limited by shares | Live |
| UNIVERSE TECHNOLOGY TRADE CO., LIMITED | Private company limited by shares | Live |
| UNION HOPE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION OCEAN ENTERPRISES LIMITED | Private company limited by shares | Live |
| Unicon Inc Limited | Private company limited by shares | Live |
| Universe Electronic Company Limited | Private company limited by shares | Live |
| UNITED FANCY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIVERSE LIGHT CONSULTANCY AGENT LIMITED | Private company limited by shares | Live |
| China Union Energy Limited | Private company limited by shares | Live |
| UNI-DRAGON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CITY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SKY UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| HARBOUR UNION INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNION LINK GARMENT LIMITED | Private company limited by shares | Live |
| CHINA UNITED FIVE CONTINENTS INTERNATIONAL INVESTMENT HOLDING GROUP LIMITED | Private company limited by shares | Live |
| Shenzhen Univivi Technology Co., Limited | Private company limited by shares | Live |
| UNIQUEPIECE LIMITED | Private company limited by shares | Live |
| UNIQUE MOTOR LIMITED | Private company limited by shares | Live |
| UNITY CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITED SUPPLY CHAIN GROUP COMPANY LIMITED | Private company limited by shares | Live |
| UNITED KIT LIMITED | Private company limited by shares | Live |
| Green China Construction Engineering Union Limited | Private company limited by shares | Live |
| EFFIRE UNIVERSAL LIMITED | Private company limited by shares | Live |
| WELL UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| WENZHOU UNIOPTICAL CO., LIMITED | Private company limited by shares | Live |
| RICH UNION ENTERPRISES DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNESPRO OVERSEAS CO., LIMITED | Private company limited by shares | Live |
| UNION CASTLE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ACE UNION LIMITED | Private company limited by shares | Live |
| TURBO UNION LIMITED | Private company limited by shares | Live |
| HAPPY UNION TRADING LIMITED | Private company limited by shares | Live |
| WORLD UNION TRADING LIMITED | Private company limited by shares | Live |
| GPH Union (Hongkong) Co., Limited | Private company limited by shares | Live |
| CHINA DRAGON BOAT UNION CO., LIMITED | Private company limited by shares | Live |
| UNION TRADE (GLOBAL) LIMITED | Private company limited by shares | Live |
| UNITECH COOPERATION CO., LIMITED | Private company limited by shares | Live |
| UNION AIR CARGO LIMITED | Private company limited by shares | Live |
| Asha United Limited | Private company limited by shares | Live |