| SAYO TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SAYO HOLDING LIMITED | Private company limited by shares | Live |
| HongKong Sayo Tech Co., Limited | Private company limited by shares | Live |
| SAYO INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SAYO GROUP INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JAPAN & HONG KONG SAYO LIMITED | Private company limited by shares | Dissolved |
| SAYOK-MOULD CO., LIMITED | Private company limited by shares | Live |
| SAYONA INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| FRANCE SAYONA INTEREST LIMITED | Private company limited by shares | Live |
| SAYORAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sayoshi Limited | Private company limited by shares | Live |