Attached files

file filename
10-K - FORM 10-K - U.S. SILICA HOLDINGS, INC.d316539d10k.htm
EX-10.5 - AMENDMENT NO. 4 TO LOAN AND SECURITY AGREEMENT - U.S. SILICA HOLDINGS, INC.d316539dex105.htm
EX-95.1 - MINE SAFETY DISCLOSURE - U.S. SILICA HOLDINGS, INC.d316539dex951.htm
EX-21.1 - LIST OF SUBSIDIARIES OF U.S. SILICA HOLDINGS, INC. - U.S. SILICA HOLDINGS, INC.d316539dex211.htm
EX-31.1 - SECTION 302 CERTIFICATION OF CHIEF EXECUTIVE OFFICER - U.S. SILICA HOLDINGS, INC.d316539dex311.htm
EX-32.2 - SECTION 906 CERTIFICATION OF CHIEF FINANCIAL OFFICER - U.S. SILICA HOLDINGS, INC.d316539dex322.htm
EX-31.2 - SECTION 302 CERTIFICATION OF CHIEF FINANCIAL OFFICER - U.S. SILICA HOLDINGS, INC.d316539dex312.htm
EX-10.7 - AMENDMENT NO. 1 TO SECOND AMENDMENT AND RESTATED CREDIT AGREEMENT - U.S. SILICA HOLDINGS, INC.d316539dex107.htm
EX-23.1 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM - U.S. SILICA HOLDINGS, INC.d316539dex231.htm
EX-32.1 - SECTION 906 CERTIFICATION OF CHIEF EXECUTIVE OFFICER - U.S. SILICA HOLDINGS, INC.d316539dex321.htm
EX-24.1 - POWERS OF ATTORNEY - U.S. SILICA HOLDINGS, INC.d316539dex241.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 2011 Annual Report on Form 10-K of U.S. Silica Holdings, Inc. (the “Company”) and the quotation by the Company in the 2011 Annual Report on Form 10-K 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 2011 Annual Report on Form 10-K.

 

THE FREEDONIA GROUP, INC.
By:   /s/ CORINNE GANGLOFF
 

Name:

Title:

March 20, 2012