| SINOTONE LIMITED | Private company limited by shares | Dissolved |
| SINOTONE LIMITED | Private company limited by shares | Dissolved |
| SINOTONE LIMITED | Private company limited by shares | Live |
| CHINA SINOTONE NETCOM LIMITED | Private company limited by shares | Dissolved |
| SINOTONE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SinoTone Group Limited | Private company limited by shares | Live |
| SINOTONE INDUSTRIAL LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Aug-2014 |
| SINOTONE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINOTONE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOTONE SHIPPING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINOTONE TECHNOLOGIES CO., LIMITED | Private company limited by shares | Dissolved |
| SINOTONE TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |