U.S. Silica Holdings, Inc. (NYSE: SLCA) today announced that its management will present and be meeting with investors at the BB&T Capital Markets 7 th Annual Commercial and Industrial Conference, being held The Biltmore Hotel in Coral Gables, Florida, March 20-21, 2013. Bryan Shinn, President and CEO of U.S. Silica, is scheduled to present on Wednesday, March 20, 2013 at 11:05 a.m. EDT. A copy of the investor presentation will also be available on U.S. Silica’s website at www.ussilica.com in the Investor Resources section. About U.S. Silica U.S. Silica Holdings, Inc., a Delaware corporation, is the second largest domestic producer 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, Maryland.