| RAMT LIMITED | | Live |
| RAMTAPS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| RAMTECH LIMITED | Private company limited by shares | Live |
| RAMTECT LIMITED | Private company limited by shares | Live |
| RAMTEX CAPITAL LIMITED | Private company limited by shares | Live |
| RAMTIN LIMITED | Private company limited by shares | Dissolved |
| RAMTION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG RAMTON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| RAMTONE LIMITED | Private company limited by shares | Dissolved |
| RAMTRON LIMITED | Private company limited by shares | Dissolved |