U.S. Silica Holdings, Inc. (NYSE: SLCA) today announced that it will release its third quarter 2012 results after the New York Stock Exchange closes on Wednesday, October 31, 2012. This release will be followed by a conference call for investors on Thursday, November 1, 2012 at 11:00 a.m. Eastern Time to discuss U.S. Silica's third quarter 2012 financial results. Hosting the call will be Bryan A. Shinn, President and Chief Executive Officer and William A. White, Chief Financial Officer. The call can be accessed live over the telephone by dialing (877) 705-6003, or for international callers, (201) 493-6725. A replay will be available shortly after the call and can be accessed by dialing (877) 870-5176, or for international callers, (858) 384-5517. The passcode for the replay is 402328. The replay of the conference call will be available for approximately two weeks following the call. Interested parties may also listen to a simultaneous webcast of the conference call by logging onto U.S. Silica’s website at www.ussilica.com in the Investor Resources section. A replay of the webcast will also be available for approximately two weeks following the call. 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 200 products to customers across these end markets. U.S. Silica Holdings, Inc. is headquartered in Frederick, MD.