| Company Name | Type | Status |
|---|---|---|
| UMI SWEEP LIMITED | Private company limited by shares | Live |
| SWEEPCAST LIMITED | Private company limited by shares | Dissolved |
| SWEEPER COMPANY LIMITED | Private company limited by shares | Live |
| CHINA MINE SWEEPING LIMITED | Private company limited by shares | Live |
| SWEEPING CO., LIMITED | Private company limited by shares | Live |