| AMPHILAB PTE LIMITED | Private company limited by shares | Live |
| AMPHIMACO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Amphimetal Resources Co., Limited | Private company limited by shares | Live |
| AMPHION INVESTMENT LIMITED | Private company limited by shares | Live |
| Amphiprotech HK Limited | Private company limited by shares | Live |
| AMPHI-RANGER LIMITED | Private company limited by shares | Dissolved |
| Amphitheatric Technology Limited | | Live |
| Amphitryon Co., Limited | | Live |
| AMPHITRYON INVESTMENT LIMITED | Private company limited by shares | Dissolved |