| HUA AI UNION CO., LIMITED | Private company limited by shares | Dissolved |
| WORLD EMINENT ZS ENTREPRENEUR UNION LIMITED | Private company limited by shares | Dissolved |
| UNION GROUP TRADING (YI WU) COMPANY LIMITED | Private company limited by shares | Live |
| SUPER UNION GROUP (HK) CO., LIMITED | Private company limited by shares | Live |
| FAME UNION CORPORATION LIMITED | Private company limited by shares | Live |
| UNION SPECIAL LIMITED | Private company limited by shares | Live |
| Max Union International Holding Limited | Private company limited by shares | Live |
| UNION T&H HONG KONG CO., LIMITED | Private company limited by shares | Live |
| Unionsnab Limited | Private company limited by shares | Dissolved |
| UNION EASTERN GATE LIMITED | Private company limited by shares | Live |
| UNION (GERMANY) AUTO PARTS ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| CHINA UNION INT'L DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| PINE UNION CORPORATION LIMITED | Private company limited by shares | Dissolved |
| UNION CHINA ENGINEERING LIMITED | Private company limited by shares | Live |
| STAR UNION HONG KONG INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION SUNSHINE LIMITED | Private company limited by shares | Live |
| UNION GOAL LIMITED | Private company limited by shares | Live |
| WORLD UNION INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| HEAD UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MEGA UNION TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| KEY UNION ENGINEERING LIMITED | Private company limited by shares | Live |
| UNION CHINA DEVELOPMENT LIMITED | Private company limited by shares | Live |
| FULL UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION BRIGHT INTERNATIONAL PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL LOGISTICS LIMITED | Private company limited by shares | Live |
| UNION TRADE ENTERPRISES LIMITED | Private company limited by shares | Live |
| BEST UNION (H.K.) LIMITED | Private company limited by shares | Live |
| ASIA UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BEST UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION GOLD HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION GOLD TRADING LIMITED | Private company limited by shares | Live |
| GREEN UNION LIMITED | Private company limited by shares | Live |
| Insurance Union Company Limited | Private company limited by shares | Live |
| Yoga Union Limited | Private company limited by shares | Live |
| GOOD UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| GREAT UNION CHINA LIMITED | Private company limited by shares | Live |
| UNION NATION (CHINA) LIMITED | Private company limited by shares | Live |
| CHINA SUPER CAR UNION CO., LIMITED | Private company limited by shares | Live |
| UNION SAILS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION CHINA CORPORATION LIMITED | Private company limited by shares | Live |
| ASIA UNION LIMITED | Private company limited by shares | Live |
| CLOUD UNION ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| UNION TRADE GROUP LIMITED | Private company limited by shares | Dissolved |
| MARKET UNION GROUP LIMITED | Private company limited by shares | Live |
| UNION COMMODITIES LIMITED | Private company limited by shares | Live |
| Pure Union Technology Limited | Private company limited by shares | Dissolved |
| DIGITAL UNION GROUP (CHINA) LIMITED | Private company limited by shares | Live |
| CROWN UNIONS LIMITED | Private company limited by shares | Live |
| Union Gospel Fellowship Limited | Company limited by guarantee | Live |
| UNION BUSINESS INDUSTRY LIMITED | Private company limited by shares | Live |
| FULLRICH UNION LIMITED | Private company limited by shares | Live |
| Forest Union Enterprise (HK) Co., Limited | Private company limited by shares | Live |
| UNION TACT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE CONSULTANTS LIMITED | Private company limited by shares | Live |
| UNION GOLD HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SYSTEM TRADING LIMITED | Private company limited by shares | Live |
| UNION BASE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION RICH INTERNATIONAL INC. LIMITED | Private company limited by shares | Live |
| UNION RISE ENTERPRISES DEVELOPMENT LIMITED | Private company limited by shares | Live |
| GOLDRICH UNION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SURVIVAL UNION CONSULTANTS COMPANY LIMITED | Private company limited by shares | Live |
| BEST UNION WORLDWIDE LIMITED | Private company limited by shares | Live |
| MEGA UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| Chinese Entrepreneurs E-business Union Co., Limited | Private company limited by shares | Live |
| TRILLIONS UNION LIMITED | Private company limited by shares | Live |
| CHINA UNION SURVEYORS LIMITED | Private company limited by shares | Live |
| GAIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION AGRO-CHEMICAL COMPANY LIMITED | Private company limited by shares | Live |
| UNION SUCCESS INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| JOINT UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION SYSTEM INVESTMENTS LIMITED | Private company limited by shares | Live |
| UNION TALENT (ASIA) LIMITED | Private company limited by shares | Live |
| MORAL UNION LIMITED | Private company limited by shares | Live |
| UNION DELUXE INVESTMENT LIMITED | Private company limited by shares | Live |
| LEADER UNION CORPORATION LIMITED | Private company limited by shares | Live |
| GOLDEN UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| Five Union Technology Limited | Private company limited by shares | Live |
| NANJING UNION CHEMICAL CO., LIMITED | Private company limited by shares | Dissolved |
| UNION MASS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Hysight Union Group Holdings Limited | Private company limited by shares | Live |
| MEGA UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| GLOBAL ZHESHANG UNION LIMITED | Private company limited by shares | Live |
| MASTER UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Top Unions Inc Limited | Private company limited by shares | Live |
| H. K UNION DZUK BUN ARCHITECT OFFICE LIMITED | Private company limited by shares | Live |
| Union Peak Company Limited | Private company limited by shares | Live |
| YUNDING INTERNATIONAL UNION CO., LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL EDUCATION UNION (CHINA) CO., LIMITED | Private company limited by shares | Live |
| UNION PAY CURRENCY EXCHANGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA ONLINE CLIENT UNION CO., LIMITED | Private company limited by shares | Live |
| UNION ROYAL LIMITED | Private company limited by shares | Live |
| UNION HOLDING GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRONIC INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| HONGKONG UNION E-TRADING LIMITED | Private company limited by shares | Live |
| Union Honest Agency Limited | Private company limited by shares | Live |
| UNION LUCK PROPERTIES LIMITED | Private company limited by shares | Live |
| KINGS UNION LIMITED | Private company limited by shares | Live |
| THINKER UNION INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| CHINESE YIJING UNION CO., LIMITED | Private company limited by shares | Live |
| UNION SUNSHINE ELECTRONICS (HK) LIMITED | Private company limited by shares | Live |