| MASU COMPANY LIMITED | Private company limited by shares | Dissolved |
| Masu Digital Consultancy Company Limited | Private company limited by shares | Live |
| MASU SURVEY COMPANY LIMITED | Private company limited by shares | Live |
| Masu Trading Company Limited | Private company limited by shares | Live |
| MASUA LIMITED | Private company limited by shares | Dissolved |
| MASUDA LIMITED | Private company limited by shares | Dissolved |
| MASUDAYA HONGKONG LIMITED | Private company limited by shares | Live |
| MASUDO TRADING LIMITED | Private company limited by shares | Live |
| MASUFUMI LIMITED | Private company limited by shares | Dissolved |
| Masuka Limited | Private company limited by shares | Live |
| HK MASULISE CO., LIMITED | Private company limited by shares | Dissolved |
| MASUM POWER INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| MASUMA TRADING COMPANY LIMITED | Private company limited by shares | Live |
| MASUN LIMITED | Private company limited by shares | Dissolved |
| Masun Energy (Hongkong) Co., Limited | Private company limited by shares | Live |
| MASURA LIMITED | Private company limited by shares | Dissolved |
| MASURIE LIMITED | Private company limited by shares | Live |
| MASURIE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MASUTOYO COMPANY LIMITED | Private company limited by shares | Dissolved |