| Company Name | Type | Status |
|---|---|---|
| RYON COMPANY LIMITED | Private company limited by shares | Dissolved |
| RYONG ELECTRONICS HONG KONG LIMITED | Private company limited by shares | Live |
| KOREA RUNGRADO RYONGAK TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG RYONGHUN TRADING CO., LIMITED | Private company limited by shares | Live |