Attached files
| file | filename |
|---|---|
| EXCEL - IDEA: XBRL DOCUMENT - U.S. SILICA HOLDINGS, INC. | Financial_Report.xls |
| 10-Q - FORM 10-Q - U.S. SILICA HOLDINGS, INC. | d329246d10q.htm |
| EX-31.2 - CERTIFICATION - U.S. SILICA HOLDINGS, INC. | d329246dex312.htm |
| EX-95.1 - MINE SAFETY DISCLOSURE - U.S. SILICA HOLDINGS, INC. | d329246dex951.htm |
| EX-32.2 - SECTION 1350 CERTIFICATION - U.S. SILICA HOLDINGS, INC. | d329246dex322.htm |
| EX-31.1 - CERTIFICATION - U.S. SILICA HOLDINGS, INC. | d329246dex311.htm |
| EX-32.1 - SECTION 1350 CERTIFICATION - U.S. SILICA HOLDINGS, INC. | d329246dex321.htm |
Exhibit 99.1
[Freedonia Letterhead]
CONSENT OF THE FREEDONIA GROUP, INC.
We hereby consent to the references to our company’s name in the Quarterly Report on Form 10-Q for the Quarterly Period Ended March 31, 2012 (the “Quarterly Report”) of U.S. Silica Holdings, Inc. (the “Company”) and the quotation by the Company in the Quarterly Report from Table IV-4 from our report World Well Stimulation Materials, April 2011. We also hereby consent to the filing of this letter as an exhibit to the Quarterly Report.
| THE FREEDONIA GROUP, INC. | ||
| By: |
/S/ CORINNE GANGLOFF | |
|
| ||
| Name: Corinne Gangloff | ||
| Title: Media Relations Director | ||
May 3, 2012