| TOSA LIMITED | Private company limited by shares | Dissolved |
| TOSA INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tosada Company Limited | | Live |
| TOSAME LIMITED | Private company limited by shares | Live |
| TOSAN LIMITED | Private company limited by shares | Dissolved |
| HK TOSAN CHEETRUM LIMITED | | Live |
| TOSANI LIMITED | Private company limited by shares | Live |
| TOSANKYO COMPANY LIMITED | Private company limited by shares | Dissolved |
| ToSaver Automotive Technology (hongkong) Limited | | Live |
| TOSAY TRADING LIMITED | Private company limited by shares | Dissolved |