| UNION IMPORTS LIMITED | Private company limited by shares | Live |
| UNION CAPITAL LIMITED | Private company limited by shares | Live |
| UNION GLORY (ASIA) LIMITED | Private company limited by shares | Live |
| UNION VIEW INDUSTRIES LIMITED | Private company limited by shares | Live |
| CHINA VOCATIONAL EXAM UNION CO., LIMITED | Private company limited by shares | Dissolved |
| UNION INT'L INVESTMENT LIMITED | Private company limited by shares | Live |
| J&A UNION ENTERPRISE GROUP LIMITED | Private company limited by shares | Live |
| HONGKONG UNION ENTERNITY SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| UNION CAEP GROUP LIMITED | Private company limited by shares | Live |
| UNION FORTUNE GROUP LIMITED | Private company limited by shares | Dissolved |
| SUCCESS UNION PROPERTIES INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION GOOD FINANCE LIMITED | Private company limited by shares | Live |
| TBL UNION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UNION ORIENT INC LIMITED | Private company limited by shares | Dissolved |
| TOPMAX UNION LIMITED | Private company limited by shares | Live |
| UNION RESOURCES INC. U.S.A. LIMITED | Private company limited by shares | Live |
| UNION ADVERTISING (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| UNION LIGHTING TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Union Source Group Limited | Private company limited by shares | Live |
| UNION RICH HONG KONG INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION INDUSTRIAL (GLOBAL) LIMITED | Private company limited by shares | Live |
| ANYEASY TECH UNION LIMITED | Private company limited by shares | Live |
| UNION KING DEVELOPMENT LIMITED | Private company limited by shares | Live |
| UNION CHANNEL (H.K.) LIMITED | Private company limited by shares | Live |
| CHINA FOSUNNY UNION GROUP LIMITED | Private company limited by shares | Live |
| UNION INTERNATIONAL DEVELOP LIMITED | Private company limited by shares | Live |
| UNION TALENT ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| UNION FIRST ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| Asia Union Investment Co., Limited | Private company limited by shares | Live |
| UNION WISDOM LIMITED | Private company limited by shares | Live |
| UNION HONG KONG LIMITED | Private company limited by shares | Live |
| DYNAMIC UNION INVESTMENTS LIMITED | Private company limited by shares | Live |
| SHENZHEN UNION-WHEEL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GOODS UNION LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| Union Nation Garment Company (Hong Kong) Limited | Private company limited by shares | Live |
| HOLY UNION TRADE CO., LIMITED | Private company limited by shares | Live |
| UNION EAST INDUSTRIAL LIMITED | Private company limited by shares | Live |
| LAND UNION INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION POWER (HK) INTERNATIONAL LIMITED | Private company limited by shares | Live |
| UNION CHINA HOLDING GROUP LIMITED | Private company limited by shares | Live |
| Union Swift Payment Technology Limited | Private company limited by shares | Live |
| JIANGXI CHINA UNION HONGKONG INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CHINA AGRICULTURE UNION LIMITED | Private company limited by shares | Live |
| TIANHE UNION STOCK LIMITED | Private company limited by shares | Live |
| EVERICH UNION LIMITED | Private company limited by shares | Live |
| NATIVE UNION BESPOKE LIMITED | Private company limited by shares | Dissolved |
| UNION TRADING DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| OCEAN UNION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| UNION WAY INVESTMENT LIMITED | Private company limited by shares | Live |
| UNION (ASIA) ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| UNION SUCCESS INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| UNION OCEAN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| RIVER UNION LIMITED | Private company limited by shares | Dissolved |
| BRIGHT UNION ENTERPRISES LIMITED | Private company limited by shares | Live |
| LUCKY UNION INDUSTRIES LIMITED | Private company limited by shares | Live |
| LEADER UNION LIMITED | Private company limited by shares | Live |
| MUTUAL TRADE UNION CO., LIMITED | Private company limited by shares | Live |
| UNION DEVELOP GROUP (HK) COMPANY LIMITED | Private company limited by shares | Live |
| Global Jishang Union Limited | Private company limited by shares | Live |
| JJS UNION LIMITED | Private company limited by shares | Live |
| UNION ACCOUNTING AFFAIRS LIMITED | Private company limited by shares | Live |
| ANTONG UNION GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| WISE UNION CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| JUSTIN UNION COMMERCIAL & TRADE CO., LIMITED | Private company limited by shares | Live |
| CHANG SHENG UNION TRADING LIMITED | Private company limited by shares | Live |
| WORLD CHINESE TEACHING ENTERPRISE UNION LIMITED | Private company limited by shares | Dissolved |
| METAL UNION LIMITED | Private company limited by shares | Live |
| Union Optical Glass Material Limited | Private company limited by shares | Live |
| Sea Union Fire Engineering Limited | Private company limited by shares | Live |
| MORALITY SEEKER UNION LIMITED | Company limited by guarantee | Live |
| UNION GROUP (1989) LIMITED | Private company limited by shares | Live |
| EG Union (Hong Kong) Company Limited | Private company limited by shares | Live |
| FIRST UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SUN UNION CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| UNION HANDLING SERVICE LIMITED | Private company limited by shares | Live |
| HI-TECH UNION (HK) CO., LIMITED | Private company limited by shares | Live |
| UNION POWER TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| UNION ON TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| INTERNATIONAL DITAN UNION INDUSTRY LIMITED | Private company limited by shares | Live |
| LIJUN UNION GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG UNION FITNESS INSTITUTE LIMITED | Private company limited by shares | Live |
| FUNG YING INTERNATIONAL UNION LIMITED | Private company limited by shares | Live |
| STAR UNION TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| BROTHER UNION INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| UNION WEALTHY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| WORLD ENTERPRISE UNION CO., LIMITED | Private company limited by shares | Live |
| UNION BRIGHT MANAGEMENT LIMITED | Private company limited by shares | Live |
| HONEST UNION HOLDINGS LIMITED | Private company limited by shares | Live |
| Union Integrity Trade (HK) Co., Limited | Private company limited by shares | Live |
| CHINA GARMENT CUSTOMIZATION UNION LIMITED | Private company limited by shares | Dissolved |
| GLORY UNION HK LIMITED | Private company limited by shares | Dissolved |
| DAISY UNION ENTERPRISE LIMITED | Private company limited by shares | Live |
| STAR UNION ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| STAR UNION CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| U&M Technology Union Co., Limited | Private company limited by shares | Live |
| UNION RISE TRADING LIMITED | Private company limited by shares | Live |
| UNION ALLIANCE INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| UNION GRACE SHIPPING (H.K.) CO., LIMITED | Private company limited by shares | Live |
| GREAT UNION RESOURCES HOLDINGS COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA PACIFIC MEIYE CEO UNION DEVELOPMENT LIMITED | Private company limited by shares | Live |