| Alpha Mercury Limited | Private company limited by shares | Live |
| AMAZING MERCURY LIMITED | Private company limited by shares | Live |
| AMAZING MERCURY 2 LIMITED | Private company limited by shares | Live |
| AMAZING MERCURY 3 LIMITED | Private company limited by shares | Live |
| AMAZING MERCURY 4 LIMITED | Private company limited by shares | Live |
| AMAZING MERCURY 5 LIMITED | Private company limited by shares | Live |
| Amdipharm Mercury (Hong Kong) Limited | Private company limited by shares | Live |
| Ameba Mercury Limited | | Live |
| CAPITAL MERCURY APPAREL (HK), LIMITED | Private company limited by shares | Dissolved |
| AQUA IN MERCURY COMPANY LIMITED | Private company limited by shares | Live |
| Mercury Asia Limited | Private company limited by shares | Live |
| Mercury Supply Chain Asia Limited | Private company limited by shares | Live |
| MERCURY ASIA ENTERPRISES LIMITED | Private company limited by shares | Live |
| MERCURY SOFTWARE ASIA-PACIFIC LIMITED | Private company limited by shares | Dissolved |
| MERCURY ASTRO-TECH LIMITED | Private company limited by shares | Live |
| Mercury Base Supply Chain Limited | | Live |
| Hong Kong Mercury biotech Co., Limited | Private company limited by shares | Live |
| Mercury Blue Investment Limited | Private company limited by shares | Live |
| Mercury Brands HK Limited | Private company limited by shares | Dissolved |
| MERCURY CAPITAL LIMITED | Private company limited by shares | Live |
| MERCURY CENTRE LIMITED -THE- | Private company limited by shares | Live |
| MERCURY CENTURY LIMITED | Private company limited by shares | Live |
| MERCURY CHEMICALS HK LIMITED | Private company limited by shares | Live |
| Mercury Chengdu Limited | Private company limited by shares | Live |
| MERCURY CHINA LIMITED | Private company limited by shares | Dissolved |
| MERCURY CHOICE COMPANY LIMITED | Private company limited by shares | Live |
| MERCURY CO., LIMITED | Private company limited by shares | Live |
| MERCURY TNK CO., LIMITED | Private company limited by shares | Live |
| Mercury (China) Co., Limited | Private company limited by shares | Live |
| MERCURY MARINE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Mercury Enterprise Co., Limited | Private company limited by shares | Live |
| MERCURY GLOBAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| CD MERCURY INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| CSCL MERCURY SHIPPING CO., LIMITED | Private company limited by shares | Live |
| Mercury Technology Co., Limited | Private company limited by shares | Live |
| MERCURY TRADE CO., LIMITED | Private company limited by shares | Live |
| MERCURY TRADING CO., LIMITED | Private company limited by shares | Live |
| MERCURY YYF TRADING CO., LIMITED | | Live |
| MERCURY PLAN COSMETICS TRADING CO., LIMITED | Private company limited by shares | Live |
| Mercury Commodities Trading Limited | | Live |
| Mercury Communication Co., Limited | Private company limited by shares | Live |
| Mercury Communications Limited | | Live |
| MERCURY COMMUNICATIONS (ASIA) LIMITED | Private company limited by shares | Live |
| MERCURY COMPUTER TRADING SERVICE LIMITED | Private company limited by shares | Dissolved |
| MERCURY CONCEPT LIMITED | Private company limited by shares | Live |
| MERCURY CONNECTION CONSULTING CO., LIMITED | Private company limited by shares | Live |
| MERCURY CONSTRUCTION CO. LIMITED | Private company limited by shares | Live |
| MERCURY CONSULTANTS LIMITED | Private company limited by shares | Live |
| Mercury Consulting Limited | | Live |
| Mercury Consulting (China) Limited | Private company limited by shares | Live |
| MERCURY GOLDWELL CONSULTING LIMITED | Private company limited by shares | Dissolved |
| MERCURY CONSULTING GROUP LIMITED | Private company limited by shares | Live |
| MERCURY TRADING AND CONSULTING LIMITED | Private company limited by shares | Dissolved |
| MERCURY WEIGHING AND CONTROL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| MERCURY CORP LIMITED | Private company limited by shares | Live |
| Mercury Corp Limited | | Live |
| MERCURY TRADING CORP LIMITED | Private company limited by shares | Live |
| MERCURY CONSULTING (HONG KONG) CORPORATION LIMITED | Private company limited by shares | Live |
| MERCURY NAVIGATION CORPORATION LIMITED | Private company limited by shares | Live |
| MERCURY CREPES LIMITED | Private company limited by shares | Dissolved |
| MERCURY SPORTS AND CULTURE LIMITED | Private company limited by shares | Live |
| Dazzling Mercury Investments Limited | Private company limited by shares | Live |
| MERCURY DESIGN LIMITED | Private company limited by shares | Live |
| Mercury Design and Build Company Limited | | Live |
| Mercury Development Limited | Private company limited by shares | Live |
| CD MERCURY DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| Mercury Global Development Co., Limited | Private company limited by shares | Live |
| MERCURY SHOES DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mercury Trading and Development Corporation Limited | Private company limited by shares | Live |
| MERCURY DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| FIRST DIRECT MERCURY LIMITED | Private company limited by shares | Dissolved |
| Mercury Ditio Limited | Private company limited by shares | Live |
| MERCURY SEA & AIR DIVISION LIMITED | Private company limited by shares | Live |
| MERCURY FAR EAST LIMITED | Private company limited by shares | Dissolved |
| MERCURY FAR EAST ENTERPRISE LIMITED | Private company limited by shares | Live |
| Mercury Education Limited | Private company limited by shares | Live |
| Mercury Electronics Limited | Private company limited by shares | Live |
| MERCURY ENERGY LIMITED | Private company limited by shares | Live |
| MERCURY ENGINEERING LIMITED | Private company limited by shares | Live |
| MERCURY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| HK MERCURY ENTERPRISE LIMITED | Private company limited by shares | Live |
| MERCURY ENTERPRISES CO. LIMITED | Private company limited by shares | Live |
| MERCURY ETHAN LIMITED | | Live |
| Mercury Foreign Exchange Limited | Private company limited by shares | Live |
| MERCURY EXPORTS LIMITED | Private company limited by shares | Live |
| MERCURY EXPRESS LIMITED | Private company limited by shares | Live Commenced dormancy on 10-Aug-2012 |
| MERCURY FASHION LIMITED | Private company limited by shares | Dissolved |
| MERCURY FAST LIMITED | Private company limited by shares | Live |
| Mercury Films Limited | Private company limited by shares | Live |
| Mercury Financial Solutions Service Limited | Private company limited by shares | Live |
| Mercury Fintech Limited | | Live |
| MERCURY FOOD LIMITED | Private company limited by shares | Live |
| MERCURY SPORTS FOOTWEAR LIMITED | Private company limited by shares | Dissolved |
| MERCURY OCEAN FREIGHT FORWARDER COMPANY LIMITED | Private company limited by shares | Dissolved |
| MERCURY GAMES LIMITED | Private company limited by shares | Dissolved |
| Gentle Mercury Limited | | Live |
| MERCURY GLOBAL LIMITED | Private company limited by shares | Live |
| Mercury Global Investment Co., Limited | Private company limited by shares | Live |
| Mercury Global Trading Limited | Private company limited by shares | Live |
| Golden Mercury Industrial Limited | Private company limited by shares | Dissolved |