| UNION AIR CONDITIONING & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| UNION CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| China Mineral United Holding Limited | Private company limited by shares | Live |
| AMGEN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SOURCE INDUSTRIAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Uniter HK Limited | Private company limited by shares | Dissolved |
| UNIVERSE RICH (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNISOURCE SOLUTIONS (HK) LIMITED | Private company limited by shares | Live |
| HONG KONG UNION TONGCHUANG LIMITED | Private company limited by shares | Dissolved |
| UNIQUE SIGHT LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Aug-2013 |
| EGS UNIVERSAL LIMITED | Private company limited by shares | Live |
| TANFIELD UNION LIMITED | Private company limited by shares | Live |
| GRACEFUL UNION LIMITED | Private company limited by shares | Dissolved |
| FAITH UNION INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| UNICK CO., LIMITED | Private company limited by shares | Live |
| UNIONTEX ENTERPRISES LIMITED | Private company limited by shares | Live |
| L&L Universal Limited | Private company limited by shares | Live |
| UNION MARINE (HK) CO., LIMITED | Private company limited by shares | Live |
| UNION SCREEN PRINTING (HK) COMPANY LIMITED | Private company limited by shares | Live |
| XIAMEN UNITEDGLOBAL IMPORT&EXPORT CO., LIMITED | Private company limited by shares | Live |
| POWER CONSULT UNITED LIMITED | Private company limited by shares | Live |
| US UNITED INV. GROUP HK MACAO INT'L ITEM PROJECT LIMITED | Private company limited by shares | Dissolved |
| U SPACE INDOOR DESIGNERS INTERNATIONAL UNION LIMITED | Private company limited by shares | Live |
| TAIWAN XINTAI UNION INT'L TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT INC. LIMITED | Private company limited by shares | Live |
| RICH UNION LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| UNITY TRIMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED WAY - HUITAI COMPANY LIMITED | Private company limited by shares | Dissolved |
| CONCORD UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| TSING HUA TRADE AND INDUSTRY UNION LIMITED | Private company limited by shares | Live |
| UNIQUE GIFT IDEAS CO., LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL DIGITAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| WORLD HOTEL UNION GENERAL LIMITED | Private company limited by shares | Live |
| FAMOUS UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL WINE ENTERPRISE UNION LIMITED | Private company limited by shares | Live |
| Dikson Union Limited | Private company limited by shares | Dissolved |
| UNIVERSAL USA COMPANY LIMITED | Private company limited by shares | Live |
| UNILOCK LIMITED | Private company limited by shares | Live |
| HONGKONG NEW UNION TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| National Union Petroleum Group Co., Limited | Private company limited by shares | Live |
| New United Group Limited | Private company limited by shares | Live |
| UNIVERSAL MINERALS COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL MASTER INDUSTRIAL LIMITED | Private company limited by shares | Live |
| UNIQUE WAY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| China Union Insure Corporation Limited | Private company limited by shares | Dissolved |
| CHINA RICH UNION LIMITED | Private company limited by shares | Live |
| UNI-PEACE LIMITED | Private company limited by shares | Live |
| UNION BRIGHT INC. LIMITED | Private company limited by shares | Live |
| UNION WORLD INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| UNION SMART PROPERTIES LIMITED | Private company limited by shares | Live |
| UNIVERSE INTERNATIONAL CREATION LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE CONNECTION INTERNATIONAL (HK) CO., LIMITED | Private company limited by shares | Live |
| UNIVERSE TEAM CO., LIMITED | Private company limited by shares | Dissolved |
| SHARE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION SECURITY TECHNOLOGY (ASIA) CO., LIMITED | Private company limited by shares | Live |
| UNITED RESOURCE LIMITED | Private company limited by shares | Dissolved |
| UNITED NATIONS ASEAN PROCUREMENT AND TRADING CENTRE CO., LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNITON LIMITED | Private company limited by shares | Live |
| CHINA HYDROCARBON AND NUCLEAR FERTILIZER INT'L INDUSTRY UNION LIMITED | Private company limited by shares | Live |
| Fortune Resources United Limited | Private company limited by shares | Dissolved |
| UNITED LEADER LIMITED | Private company limited by shares | Live |
| CAPITAL UNITED LIMITED | Private company limited by shares | Live |
| JET UNITED LIMITED | Private company limited by shares | Live |
| TRADE UNITED LIMITED | Private company limited by shares | Dissolved |
| Unique Match Company Limited | Private company limited by shares | Dissolved |
| CITI-BASE UNIVERSAL TRADING LIMITED | Private company limited by shares | Live |
| UNIVERSAL DIMENSION LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION LOGISTICS COMPANY LIMITED | Private company limited by shares | Live |
| UNION CENTURY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL PILATES FITNESS UNION LIMITED | Private company limited by shares | Dissolved |
| United Brothers Technology Limited | Private company limited by shares | Dissolved |
| CHINA AGRICULTURE INT'L UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| PKU PE INVESTMENT UNION CO., LIMITED | Private company limited by shares | Dissolved |
| UNION TRADE (HK) LIMITED | Private company limited by shares | Live |
| UNION WORLD INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL INDUSTRIAL ENTERPRISE GROUP LIMITED | Private company limited by shares | Live |
| UNION SUCCESS WEALTH CREATION LIMITED | Private company limited by shares | Dissolved |
| SINO UNION CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| ASIA UNITRADE LIMITED | Private company limited by shares | Dissolved |
| UNISON GROUP LIMITED | Private company limited by shares | Live Commenced dormancy on 31-Jan-2011 |
| UNION WEALTHY TRADING LIMITED | Private company limited by shares | Live |
| WEST UNION LOGISTICS (CHINA) CO., LIMITED | Private company limited by shares | Live |
| UNION ASIA GROUP DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNISON CENTURY LIMITED | Private company limited by shares | Dissolved |
| UNIQUE DREAM LIMITED | Private company limited by shares | Live |
| UNIVERSE ASIA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNIFAIR EXHIBITION COMPANY LIMITED | Private company limited by shares | Live |
| UNIVERSAL C&M CO., LIMITED | Private company limited by shares | Live |
| PACIFIC UNITED INVESTMENTS LIMITED | Private company limited by shares | Live |
| ASIAN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| SUNRISE UNITED LIMITED | Private company limited by shares | Dissolved |
| UNION SOURCES LIMITED | Private company limited by shares | Dissolved |
| UNITED ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| CHINA UNION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNIPOWER LIMITED | Private company limited by shares | Dissolved |
| GLOBAL RESOURCE INTERNATIONAL UNION GROUP LIMITED | Private company limited by shares | Live |
| GUI LUN JIA TONG UNION RUBBER CO., LIMITED | Private company limited by shares | Live |
| UNIK AURORA CORPORATION LIMITED | Private company limited by shares | Dissolved |