| UNION POLYMER COMPANY LIMITED | Private company limited by shares | Live |
| CHINA ZHOUYI UNION LIMITED | Private company limited by shares | Live |
| UNION BUSINESS LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL FAMOUS ENTERPRISE UNION PROMOTION ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| NEW UNION PERFECT POINT TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GOLD UNION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNION INDUSTRIAL (CHINA) LIMITED | Private company limited by shares | Live |
| EXCELLENT UNION ACCESSORIES LIMITED | Private company limited by shares | Dissolved |
| HK UNION INT'L INVESTMENT TRADING LIMITED | Private company limited by shares | Dissolved |
| CREATIVE UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION FAIR LIMITED | Private company limited by shares | Live |
| SPECIALIST UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION OCEAN SHIPPING LIMITED | Private company limited by shares | Live |
| KING UNION CONSULTANTS LIMITED | Private company limited by shares | Live |
| HONG KONG MUSICIANS' UNION LIMITED | Private company limited by shares | Dissolved |
| WEALTH UNION INTERNATIONAL (HOLDINGS) LIMITED | Private company limited by shares | Live |
| OCEAN UNION PROFESSIONAL DESTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| EASYLINE UNION FURNITURE LIMITED | Private company limited by shares | Dissolved |
| UNION SOLAR INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION TANK LIMITED | Private company limited by shares | Live |
| UNION PACIFIC DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| JOIN UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION GLOBAL INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| UNION FASHION (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TOP UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION BRIGHT ENTERPRISE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLDEN UNION ASIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNION BASE METAL CORPORATION LIMITED | Private company limited by shares | Live |
| ALLIANCE UNION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| NETWORK UNION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNION ON PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION BEST TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MEGA UNION (HK) LIMITED | Private company limited by shares | Dissolved |
| FULLY UNION LIMITED | Private company limited by shares | Live |
| UNION CHINA INDUSTRIAL LIMITED | Private company limited by shares | Live |
| EAGLE UNION INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| UNION ELECTRO-PLATING FACTORY LIMITED | Private company limited by shares | Dissolved |
| SILVER UNION HONG KONG DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HONG KONG PHOENIX UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN UNION (H. K.) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| GUANGZHOU WUYANGLIFAN UNION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| EARTH UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION HANSE EDUCATION (CHINA) LIMITED | Private company limited by shares | Live |
| UNION LINK (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION FAITH INVESTMENT LIMITED | Private company limited by shares | Live |
| PACIFIC UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| UNION GLORY HOLDINGS LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| CHINA-EUROPE UNION INDUSTRY INV. GROUP LIMITED | Private company limited by shares | Dissolved |
| CHINA-EUROPE UNION ECONOMY TRADING FORUM LIMITED | Private company limited by shares | Dissolved |
| Brothers Union International Holding Limited | Private company limited by shares | Dissolved |
| SILVER UNION CENTURY LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| UNION PROSPER INTERNATIONAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| CHINA SURVEY UNION CATENATION CO., LIMITED | Private company limited by shares | Dissolved |
| ASIA CHEERLEADING UNION CO., LIMITED | Private company limited by shares | Dissolved |
| FULL UNION LIMITED | Private company limited by shares | Dissolved |
| GLOBAL UNION TRADING (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| HARVEST UNION TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIONLINK INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| HERO UNION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| UNION SUCCESS INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| WORLD CHINESE MERCHANTS UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| JOY UNION LIMITED | Private company limited by shares | Dissolved |
| UNION FAVOUR LIMITED | Private company limited by shares | Dissolved |
| MEGA UNION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNION RICH (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SPEEDY UNION LIMITED | Private company limited by shares | Live |
| YOHO UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GOLDEN UNION PACKING MATERIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SUPERIOR LIMITED | Private company limited by shares | Dissolved |
| CENTRAL N UNION COMPANY LIMITED | Private company limited by shares | Live |
| UNION PROFIT LOGISTICS (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| UNION WIN GARMENTS LIMITED | Private company limited by shares | Dissolved |
| WISE UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MILTON UNION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG WELL UNION GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| UNION FUND HONG KONG INTERNATIONAL LIMITED | Private company limited by shares | Live |
| EASY UNION TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| Union Sincere Surveyors Limited | Private company limited by shares | Dissolved |
| JOINT UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION LINK HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| UNION LINK TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| HONG KONG UNION RICH COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNION SUNNY LIMITED | Private company limited by shares | Dissolved |
| UNION HARMONY LIMITED | Private company limited by shares | Live |
| WORLD UNION TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION CHAIN LIMITED | Private company limited by shares | Live |
| PRO UNION ASIA LIMITED | Private company limited by shares | Dissolved |
| UNION LIHUA (CHINA) LIMITED | Private company limited by shares | Dissolved |
| FANCY UNION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG GOLDEN UNION INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| MULTI UNION GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION BASE PROPERTIES LIMITED | Private company limited by shares | Live |
| UNION ELECTRONICS (HK) LIMITED | Private company limited by shares | Dissolved |
| UNION RISE MINERALS AND MINING DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ULTRA UNION (HK) LIMITED | Private company limited by shares | Live |
| SHANDONG UNION TRAILER GROUP CO., LIMITED | Private company limited by shares | Dissolved |