| Company Name | Type | Status |
|---|---|---|
| MERCK LIMITED | Private company limited by shares | Live |
| MERCK (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| MERCK NEW MATERIALS CO., LIMITED | Live | |
| MERCK GROUP (ASIA) LIMITED | Private company limited by shares | Live |
| MERCK SOLUTIONS LIMITED | Live | |
| MERCK TECHNOLOGY SERVICE LIMITED | Private company limited by shares | Live |
| GUANGDONG MERCKDO E-COMMERCE CO., LIMITED | Live | |
| Mercku Technology (Hong Kong) Limited | Private company limited by shares | Live |