| Company Name | Type | Status |
|---|---|---|
| GUANGZHOUCITY OYAMA INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| OYama Business Management Limited | Private company limited by shares | Live |
| OYAMA STEVEDORING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| OYAMA TRANSPORTATION COMPANY, LIMITED | Private company limited by shares | Dissolved |