| FAMOUS UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| FINE UNION ACCOUNTANCY & SECRETARY LIMITED | Private company limited by shares | Live |
| PLACEFUL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION TOUCH LIMITED | Private company limited by shares | Dissolved |
| UNION WAY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| WHOLE UNION LIMITED | Private company limited by shares | Dissolved |
| UNION BUSINESS MACHINES COMPANY LIMITED | Private company limited by shares | Live |
| CHINA UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| STANDARD UNION LIMITED | Private company limited by shares | Dissolved |
| RIGHT UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CRYSTAL LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION DEVELOPMENT DESIGN CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| WORLD UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GO UNION LIMITED | Private company limited by shares | Live |
| LONG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOAL UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FORT TRADING LIMITED | Private company limited by shares | Live |
| UNION SOURCE TRADING LIMITED | Private company limited by shares | Dissolved |
| SOUTH UNION ELECTRONIC & INSTRUMENTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SPORTS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| FLOW UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION/SCICORP/ PJB CONGLOMERATE LIMITED | Private company limited by shares | Dissolved |
| WIN UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| PAN UNION (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| OLYMPIC UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LAKE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BRIDGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PALACE COMPANY LIMITED | Private company limited by shares | Live |
| UNION SHARP COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH COMPANY LIMITED | Private company limited by shares | Live |
| UNION LINE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SUN UNION GROUP LIMITED | Private company limited by shares | Dissolved |
| CHEER UNION HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| EXPERT UNION COMPANY LIMITED | Private company limited by shares | Live |
| HOME UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAY UNION SERVICE LIMITED | Private company limited by shares | Dissolved |
| BIG UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| RIGHT UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION JERK COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRST UNION CREDIT LIMITED | Private company limited by shares | Dissolved |
| JING UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| BIG UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION HOSPITAL LIMITED | Private company limited by shares | Live |
| UNION MARK TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION CONCEPT COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION TYPE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION CEILING FANS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION FANS MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION PANSONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| AUSWAH UNION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEW UNION CANDLE LIMITED | Private company limited by shares | Live |
| KNITWEARS TRANSPORTATION UNION LIMITED | Company limited by guarantee | Dissolved |
| NICE UNION INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION MALEKIN INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| G. K. UNION DOLLS MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| UNION CRYSTAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ACCESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION MARK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| MAX UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TAK TAI INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| CLEVER UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION OCEAN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION SILK FLOWERS MANUFACTORY LIMITED | Private company limited by shares | Live |
| UNION FORCE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNIONHORN COMPANY LIMITED | Private company limited by shares | Dissolved |
| CAPITAL UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION CENTRE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| PASS UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| GIANT EAGLE UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION BOCUBE UNDERWEAR MANUFACTURING LIMITED | Private company limited by shares | Live |
| UNION STRONG GROUP LIMITED | Private company limited by shares | Live |
| PAUL UNION LIMITED | Private company limited by shares | Dissolved |
| GOOD UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SKY UNION SERVICES LIMITED | Private company limited by shares | Dissolved |
| UNION AUTOMATION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUM FUNG UNION LIMITED | Private company limited by shares | Dissolved |
| UNION PROFIT INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION FULL COMPANY LIMITED | Private company limited by shares | Dissolved |
| P & C UNION GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| UNION FORTUNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION KNITTERS LIMITED | Private company limited by shares | Dissolved |
| UNION TIME COMPANY LIMITED | Private company limited by shares | Live |
| UNION VICTORY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| TRUE UNION COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION C & E LIMITED | Private company limited by shares | Live |
| YANGTZEJIANG UNION CONSULTANCY COMPANY LIMITED | Private company limited by shares | Live |
| KONG UNION LIMITED | Private company limited by shares | Dissolved |
| GLORY UNION IMITATION JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| PRODUCTS UNION GARMENTS LIMITED | Private company limited by shares | Dissolved |
| UNION LINE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GREAT UNION INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| UNION RICH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION MARK DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BEST UNION TEXTILE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION LASER ALARM COMPANY LIMITED | Private company limited by shares | Live |
| UNION BASE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FIREWORK ASSOCIATION LIMITED | Company limited by guarantee | Live |