U.S. Silica Declares Quarterly Dividend

FREDERICK, Md., July 27, 2015 /PRNewswire/ -- U.S. Silica Holdings, Inc. (NYSE: SLCA) announced today that its Board of Directors has declared a quarterly cash dividend of $0.125 per common share. The dividend is payable on Oct. 2, 2015 for all shareholders of record as of the close of business on Sept. 15, 2015.

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.

Media Inquiries: Alison Holder Manager of Corporate Communications 301-682-0326 [email protected]

Investor Relations Inquiries: Mike Lawson Director of Investor Relations and Corporate Communications301-682-0304[email protected]

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SOURCE U.S. Silica Holdings, Inc.