FREDERICK, Md., June 24, 2014 /PRNewswire/ -- U.S. Silica Holdings, Inc. (NYSE: SLCA) said today that its Industrial and Specialty Products business is increasing prices for the majority of its non-contracted ground and fine ground silica sand products used primarily in paints, coatings, elastomers, chemical, building products and other applications, an average of approximately ten percent. The increases are effective with shipments after July 15(th), 2014 or as contracts allow. The price increases are being made to support the continued investment the Company is making in upgrading its capacity to meet the growing demand for its products and to reflect the tight supply/demand balance in the silica sand market.

About U.S. Silica

U.S. Silica Holdings, Inc., a member of the Russell 2000, is one of the largest domestic producers of commercial silica, a specialized mineral that is a critical input into the oil and gas proppants end market. The company also processes ground and unground silica sand for a variety of industrial and specialty products end markets such as glass, fiberglass, foundry molds, municipal filtration and recreational uses. During its 100-plus year history, U.S. Silica Holdings, Inc. has developed core competencies in mining, processing, logistics and materials science that enable it to produce and cost-effectively deliver over 250 products to customers across these end markets. U.S. Silica Holdings, Inc. is headquartered in Frederick, Md.

Media Inquiries:
Alison Holder
Manager of Corporate Communications
301-682-0326
holder@ussilica.com

U.S. Silica Holdings, Inc.
Michael Lawson
Director of Investor Relations and Corporate Communications
(301) 682-0304
lawsonm@ussilica.com

SOURCE U.S. Silica Holdings, Inc.