| AMSIA AND ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| AMSIGN LIMITED | Private company limited by shares | Dissolved |
| AMSIM LIMITED | Private company limited by shares | Dissolved |
| AMSINCK COMPANY LIMITED | Private company limited by shares | Dissolved |
| AM-SINO (HK) LIMITED | Private company limited by shares | Live |
| Amsino Medical Group (HK) Company Limited | Private company limited by shares | Live |
| AMS-INT ASIA LIMITED | Private company limited by shares | Live |
| AMSITO COMPANY LIMITED | Private company limited by shares | Dissolved |