U.S. Silica to Participate in Upcoming Investor Conferences

FREDERICK, Md., June 1, 2015 /PRNewswire/ -- U.S. Silica Holdings, Inc. (NYSE: SLCA) today announced that members of the management team will participate in the following investor conferences during the second quarter of 2015:

2015 RBC Capital Markets' Global Energy and Power Executive Conference June 1, 2015Ritz Carlton Battery Park Hotel – New York, NY

William Blair & Company 2015 Growth Stock ConferenceJune 9, 2015Four Seasons Hotel – Chicago, IL

Oppenheimer Energy 1-on-1 Conference 2015June 9, 2015Sofitel Hotel – New York, NY

Barclays High Yield Bond & Syndicated Loan ConferenceJune 11, 2015The Broadmoor – Colorado Springs, Colorado

Management will meet with institutional investors throughout these events. Please note, when applicable, the presentations will be posted on the Company's website prior to the start of each event at www.ussilica.com.

About U.S. Silica

U.S. Silica Holdings, Inc., a member of the Russell 2000, is a leading producer of commercial silica used in the oil and gas industry, and in a wide range of industrial applications. Over its 115-year history, U.S. Silica has developed core competencies in mining, processing, logistics and materials science that enable it to produce and cost-effectively deliver over 260 products to customers across our end markets. The Company currently operates nine industrial sand production plants and eight oil and gas sand production plants. The Company is headquartered in Frederick, Maryland and also has offices located in Chicago, Illinois, Houston, Texas and Shanghai, China. The Company operates on a platform of ethics, safety and sustainability. U.S. Silica is a founding member of Wisconsin Industrial Sand Association (WISA) and has been recognized by the Wisconsin Department of Natural Resources (WDNR) as a partner in the WDNR Green Tier program. In becoming a Green Tier participant, U.S. Silica demonstrates its commitment to achieving superior environmental and economic performance.

U.S. Silica Holdings, Inc. Contacts

Media Inquiries: Alison HolderManager of Corporate Communications301-682-0326[email protected]

Investor Relations Inquiries:Michael LawsonDirector of Investor Relations and Corporate Communications301-682-0304[email protected]

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SOURCE U.S. Silica