| SMART UNION MOTORS LIMITED | Private company limited by shares | Live |
| UNION TRADING COMPANY, LIMITED -THE- | Private company limited by shares | Live |
| EAST UNION MANUFACTURINGS GROUP LIMITED | Private company limited by shares | Live |
| UNION PAPER PRODUCTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LINK INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| CHONGQING UNION CO., LIMITED | Private company limited by shares | Live |
| UNION APEX LIMITED | Private company limited by shares | Live |
| CHINA UNION LIMITED | Private company limited by shares | Live |
| UNION PLUMBING ENGINEERING LIMITED | Private company limited by shares | Live |
| HONG KONG LUXURY UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FORCE INVESTMENT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FAIR UNION LIMITED | Private company limited by shares | Live |
| USA INT'L FINANCE UNION INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| KING UNION PROPERTY AGENCY LIMITED | Private company limited by shares | Live |
| UNION WELL TRADING LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| MAIN UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION TALENT ASSOCIATES LIMITED | Private company limited by shares | Live |
| EAGLE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHTER HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| DRAGON UNION HONGKONG ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION LIMITED | Private company limited by shares | Live |
| UNION POWER RECYCLE & TRANSPORTATION LIMITED | Private company limited by shares | Live |
| WEALTH UNION LIMITED | Private company limited by shares | Dissolved |
| UNION ASIA GROUP LIMITED | Private company limited by shares | Live |
| UNION OCEAN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION LEADER HOLDINGS LIMITED | Private company limited by shares | Live |
| GOLD UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOP UNION PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION TEXTILE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION CENTURY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GLOBAL UNION INT'L INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| UNION OF LANGUAGES LIMITED | Private company limited by shares | Dissolved |
| SUN UNION PROPERTY SERVICE LIMITED | Private company limited by shares | Dissolved |
| U.S.A UNION TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| MUTUAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION ENTERPRISE (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION POWER OPTOELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| UNIONPOWER ASIA LIMITED | Private company limited by shares | Dissolved |
| UNIONPOWER ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC UNION MANUFACTURING LIMITED | Private company limited by shares | Live |
| UNION FONT LIMITED | Private company limited by shares | Dissolved |
| UNION CENTURY INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION BRIGHT LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| Union Asia (HK) International Holdings Limited | Private company limited by shares | Live |
| UNION SPEED TRANSIT (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| COOPERATED INTERNATIONAL WORLD HEALTH KEEP UNION FUND HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| L.H.F International Strategic Union Limited | Private company limited by shares | Dissolved |
| 3 UNION DESIGN & PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| UNION FAVOR MANAGEMENT CO., LIMITED | Private company limited by shares | Live |
| PROSPER UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| FAITHFUL UNION LIMITED | Private company limited by shares | Live |
| WORLD UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ASIA UNION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION REWARD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Union Pharmaceutical Investment Limited | Private company limited by shares | Live |
| CROWN UNION PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SINO UNION APPAREL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION WELL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION (CHINA) LIMITED | Private company limited by shares | Live |
| UNION SUN LIMITED | Private company limited by shares | Live |
| CREATIVE UNION GARMENT CO., LIMITED | Private company limited by shares | Dissolved |
| WIDE UNION PROPERTY INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| UNION METAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Union Star Glory (H.K.) Limited | Private company limited by shares | Dissolved |
| UNION GRACE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ALLIED UNION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ALLIED UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| China Auto Union Limited | Private company limited by shares | Live |
| UNION GARMENTS INDUSTRIES (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION WELL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL TRADING LIMITED | Private company limited by shares | Live |
| UNION GLOBAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION TRADING INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| TECH UNION INCORPORATION (HK) LIMITED | Private company limited by shares | Live |
| UNION EXPRESS TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION EXPRESS INDUSTRIAL LIMITED | Private company limited by shares | Live |
| MEGA UNION INTERNATIONAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OCEAN UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| KA FU UNION MINE PRODUCT LIMITED | Private company limited by shares | Dissolved |
| RICH UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SHELLS UNION CO., LIMITED | Private company limited by shares | Live |
| UNION FORTUNE TRADING LIMITED | Private company limited by shares | Live |
| UNION GLOBAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| UNION RICH TRADING LIMITED | Private company limited by shares | Dissolved |
| NET UNION CARGO LIMITED | Private company limited by shares | Live |
| UNION DOOR SEAL & GASKET CO., LIMITED | Private company limited by shares | Live |
| 5 UNION (HK) INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL (H.K.) COMMERCIAL LIMITED | Private company limited by shares | Live |
| INTERNATIONAL PROPERTY PLANNER UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| RAISE UNION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| NOBLE UNION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| ROYAL UNION LIMITED | Private company limited by shares | Live |
| ORIENTAL UNION LIMITED | Private company limited by shares | Live |
| UNION CENTURY DEVELOPMENT LIMITED | Private company limited by shares | Live |