| IMASA HONG KONG LIMITED | Private company limited by shares | Live |
| S. IMASHO (CHINA) LIMITED | Private company limited by shares | Dissolved |
| IMASII Solutions Limited | | Live |
| iMask Limited | | Live |
| IMASOL CO., LIMITED | Private company limited by shares | Live |
| iMass Technology (HK) Company Limited | Private company limited by shares | Live |
| Imassage Limited | Private company limited by shares | Live |
| IMASTER CO. LIMITED | Private company limited by shares | Dissolved |
| iMASTER LIMITED | Private company limited by shares | Dissolved |
| iMasters Technologies Company Limited | Private company limited by shares | Live |
| IMASU LIMITED | Private company limited by shares | Live |