| AMSTOCK TRADING LIMITED | Private company limited by shares | Dissolved |
| AMSTON LIMITED | Private company limited by shares | Dissolved |
| AMSTON LIMITED | Private company limited by shares | Dissolved |
| Amstone Technology Limited | Private company limited by shares | Live |
| Amstone Technology Limited | Private company limited by shares | Live |
| AMSTRONG LIMITED | Private company limited by shares | Dissolved |
| AMSTYLE LIMITED | Private company limited by shares | Dissolved |
| Amsu HK Limited | Private company limited by shares | Dissolved |
| AMSU ASIA LIMITED | Private company limited by shares | Live |
| AMSUN LIMITED | Private company limited by shares | Dissolved |
| AMSun Group Co., Limited | Private company limited by shares | Live |
| AMSUN INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| AMSUN HONG KONG LIMITED | Private company limited by shares | Live |
| AM-SUN LIGHT COMPANY LIMITED | Private company limited by shares | Live |
| AMSUN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| AMSUN TRADING COMPANY LIMITED | Private company limited by shares | Live |
| AM-SWISS COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMSYS SOLUTIONS GLOBAL LIMITED | Private company limited by shares | Live |