| SANEI ASIA LIMITED | Private company limited by shares | Dissolved |
| SAN-EI ELECTRONICS HK LIMITED | Private company limited by shares | Live |
| SAN-EI GEN F.F.I. (H.K.), LIMITED | Private company limited by shares | Live |
| SANEI GROUP INTERNATIONAL H.K. LIMITED | Private company limited by shares | Dissolved |
| SANEI INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SANEI HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SAN-EI (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SAN-EI CORPORATION (HONG KONG) LIMITED | Private company limited by shares | Live |
| SANEI INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| SANEI INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KOYO SANEI COMPANY LIMITED | Private company limited by shares | Dissolved |
| SANEI MACHINERY LIMITED | Private company limited by shares | Live |
| SANEI MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| SANEI SHANGHAI TRADING LIMITED | Private company limited by shares | Live |
| SAN-EI TECHNOLOGY (CHINA) LIMITED | Private company limited by shares | Live |
| SAN-EI (HK) TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| SANEI INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| SANEION DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |