End User Directory
| Plant |
City, State Zip/Country |
| BADGER MINING CORP-TAYLOR PLANT | BERLIN , WI 54900 |
| DAVENPORT MINE | |
| OGLEBAY NORTON INDUSTRIAL SANDS, INC. | BRADY, TX |
| SPECIALTY SAND COMPANY | HOUSTON, TX |
| U.S. SILICA CO. | BERKELEY SPRINGS, WV 25411 |
| U.S. SILICA COMPANY | MO |
| UNIMIN TEXAS COMPANY LP | NEW CANAAN, CT |
| WEDRON SILICA COMPANY | WEDRON, IL 60557 |