| SONMAX LIMITED | Private company limited by shares | Dissolved |
| SONMAX LIMITED | Private company limited by shares | Live |
| SONMAX DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SONMAX M & E ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SONMAX GLOBUYER TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SONMAX INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SONMAX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SONMAX INTERNATIONAL LIMITED | Private company limited by shares | Live |