| UNION WORLD INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION HONG KONG GROUP LIMITED | Private company limited by shares | Live |
| CHINA WISDOM INDUSTRY UNION CLUB HOLDING LIMITED | Private company limited by shares | Live |
| HONG KONG UNITECH LIMITED | Private company limited by shares | Live |
| UNICON GENERAL TRADING LIMITED | Private company limited by shares | Live |
| HILL UNION LIMITED | Private company limited by shares | Live |
| Virtue Wealth Union Technology Co., Limited | Private company limited by shares | Live |
| AVIC UNION HOLDING GROUP CO., LIMITED | Private company limited by shares | Live |
| CENTURY UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| Changzhou Union Well (HONGKONG) Co., Limited | Private company limited by shares | Live |
| UNION CROWN TRADING LIMITED | Private company limited by shares | Live |
| UNITED INC LIMITED | Private company limited by shares | Dissolved |
| UNIQUE SOLUTIONS LIMITED | Private company limited by shares | Live |
| UNIHUB TECHNOLOG (HK) LIMITED | Private company limited by shares | Live |
| UNION PROFIT INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Grand Union International Logistics Limited | Private company limited by shares | Live |
| UNIC EYEWEAR LIMITED | Private company limited by shares | Live |
| UNION WEALTH HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Live |
| LUCK UNION CORPORATION LIMITED | Private company limited by shares | Live |
| INTERNATIONAL TOURWAY UNION (CHINA) HOLDINGS LIMITED | Private company limited by shares | Live |
| ASIA UNION INT'L INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| UNITED MORAL CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| UNITED WEALTH TRADING LIMITED | Private company limited by shares | Live |
| Universal Service Limited | Private company limited by shares | Live |
| UNION INDUSTRIAL TRADING LIMITED | Private company limited by shares | Dissolved |
| CHINA CONSTRUCTION INDUSTRY TRAINING UNION LIMITED | Private company limited by shares | Live |
| United States Smith Kitchen Appliances Co., Limited -The- | Private company limited by shares | Live |
| Unichain International (HK) Limited | Private company limited by shares | Live |
| UNIQUE POWER MACHINERY LIMITED | Private company limited by shares | Live |
| MILLION UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION HEALTH LIMITED | Private company limited by shares | Live |
| UNION TIRE (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| UNION GOLDEN (HK) LIMITED | Private company limited by shares | Live |
| UNIVERSAL CAPITAL RESOURCES COMPANY LIMITED | Private company limited by shares | Live |
| UNITED PARTS COMPANY LIMITED | Private company limited by shares | Live |
| UNION WIT INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| RISE UNION INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| Goldmount Union Trading Limited | Private company limited by shares | Live |
| BOND UNITED ASSOCIATES LIMITED | Private company limited by shares | Live |
| UNITECH CORPORATION HONG KONG LIMITED | Private company limited by shares | Live |
| UNIPOINT BUSINESS CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION FIN LIMITED | Private company limited by shares | Dissolved |
| CHINA EVER UNION INVESTMENT MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| World Tea Union Limited | Private company limited by shares | Live |
| UNDERGROUND LIMITED -THE- | Private company limited by shares | Live |
| Unico HK Limited | Private company limited by shares | Live |
| SPREAD UNION LIMITED | Private company limited by shares | Live |
| UNION DELUXE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SMART UNION CORPORATE MANAGEMENT LIMITED | Private company limited by shares | Live |
| KOREA UNION INDUSTRY LIMITED | Private company limited by shares | Live |
| NEW UNITY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Universal Metal Limited | Private company limited by shares | Live |
| XIN UNION PIPELINE CO., LIMITED | Private company limited by shares | Live |
| HONGKONG UNION RICH ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| CHINA UNION INNOVATION GROUP CO., LIMITED | Private company limited by shares | Live |
| SPECIAL UNION LIMITED | Private company limited by shares | Live |
| KEY UNION INC LIMITED | Private company limited by shares | Live |
| Union Financial Group Limited | Private company limited by shares | Live |
| PM UNIVERSAL CONSULTANCY Limited | Private company limited by shares | Live |
| UNILIGHT HK LIMITED | Private company limited by shares | Live |
| CHINA PRIVATE ISLANDS UNION LIMITED | Private company limited by shares | Live |
| CATHAYLINK UNITED LIMITED | Private company limited by shares | Live |
| Kings Union Trading Limited | Private company limited by shares | Live |
| WEALTH UNION CORPORATION LIMITED | Private company limited by shares | Live |
| TAK CHEONG (UNISTRUT) LIMITED | Private company limited by shares | Live |
| CBM AFRICA UNION RESOURCE LIMITED | Private company limited by shares | Live |
| RICH UNION ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| NEW UNION CREATION LIMITED | Private company limited by shares | Live |
| NEW UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| GRACE UNION ENTERPRISE LIMITED | Private company limited by shares | Live |
| UNIVERSAL INVESTCO LIMITED | Private company limited by shares | Live |
| GOLD CO CO (UN) LIMITED | Private company limited by shares | Dissolved |
| UNION WIT CO., LIMITED | Private company limited by shares | Live |
| UNION AUTO DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| UNIK GROUP LIMITED | Private company limited by shares | Live |
| WORLD THINK TANK UNION LIMITED | Private company limited by shares | Live |
| KONG KAY UNIVERSAL ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| UNIVERSE OPTICAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNIQUE BEAUTY GROUP LIMITED | Private company limited by shares | Live |
| UNION GAIN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHS UNITED LIMITED | Private company limited by shares | Live |
| Unipo Limited | Private company limited by shares | Live |
| CENTURY UNION LIMITED | Private company limited by shares | Live |
| UNITED MANUFACTURERS LIMITED | Private company limited by shares | Live |
| Unitscom Co. Limited | Private company limited by shares | Live |
| UNICO J&I LIMITED | Private company limited by shares | Live |
| QING RUI UNION TRADING LIMITED | Private company limited by shares | Live |
| CHINA EMPLOYER UNION CO., LIMITED | Private company limited by shares | Live |
| MASTER UNIQUE LIMITED | Private company limited by shares | Live |
| UNIVERSAL CARD TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION CHIEF LIMITED | Private company limited by shares | Live |
| STRONG UNIVERSAL LIMITED | Private company limited by shares | Live |
| UNIFLY LIMITED | Private company limited by shares | Live |
| Power Union Holdings Limited | Private company limited by shares | Live |
| Lady Americana (United) Company Limited | Private company limited by shares | Live |
| UNION CHASE (HK) FINANCIAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNIQUE MORAL LIMITED | Private company limited by shares | Live |
| UNION TACT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CHINA YOGA UNION LIMITED | Private company limited by shares | Dissolved |
| BEST UNION INC. LIMITED | Private company limited by shares | Live |