| Company Name | Type | Status |
|---|---|---|
| MASTON LIMITED | Private company limited by shares | Live |
| MASTON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MASTONE (CHINA) LIMITED | Private company limited by shares | Live |
| MASTONE GROUP LIMITED | Private company limited by shares | Live |
| MASTONE INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Mastone Tech Limited | Live |