| SEWON ELECTRONIC (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEWON INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEWON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SEWON LICENCE LIMITED | Private company limited by shares | Dissolved |
| SEWOO HK LIMITED | Private company limited by shares | Live |
| SEWOO CO., LIMITED | Private company limited by shares | Live |
| CK SEWOO CO., LIMITED | Private company limited by shares | Live |
| SEWOO HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEWOT TECH LIMITED | Private company limited by shares | Live |