| Company Name | Type | Status |
|---|---|---|
| MAGNETRON CO. LIMITED | Private company limited by shares | Live |
| MAGNETRON ASIA LIMITED | Live | |
| HING LONG MAGNETRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| H.K. MAGNETRONIC COMPANY LIMITED | Private company limited by shares | Live |
| HO YIN MAGNETRONIC INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |