| Company Name | Type | Status |
|---|---|---|
| ROSTA PHILLY BUILDING MATERIALS CO., LIMITED | Private company limited by shares | Live |
| Rosta MP (Hong Kong) Company Limited | Private company limited by shares | Live |
| ROSTAMI TRADING CO., LIMITED | Private company limited by shares | Live |
| ROSTAR COMPANY LIMITED | Private company limited by shares | Live |
| HK Rostar Co., Limited | Private company limited by shares | Live |
| ROSTAR LAND LIMITED | Private company limited by shares | Dissolved |