| Cinzia Maini Limited | Private company limited by shares | Live |
| Maini Innovations Technology Co., Limited | | Live |
| MAINIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MAINICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mainifire Technology (HK) CO., Limited | Private company limited by shares | Live |
| MAIN-IN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| MAINING LIMITED | Private company limited by shares | Dissolved |
| MAINIO COMPANY LIMITED | Private company limited by shares | Live |
| MAINION COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAINION LIMITED | Private company limited by shares | Dissolved |
| MAINITITUHAN INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| Mainiway International Company Limited | Private company limited by shares | Live |