U.S. Silica Holdings, Inc. Announces Timing of Fourth Quarter and Year-End 2011 Financial Results Conference Call

FREDERICK, Md.--(BUSINESS WIRE)--Mar. 8, 2012-- U.S. Silica Holdings, Inc. (NYSE: SLCA) today announced that it will release its fourth quarter and year-end 2011 results before the New York Stock Exchange opens on Tuesday, March 20, 2012. This release will be followed by a conference call for investors at 10:00 a.m. Eastern Time to discuss US Silica's fourth quarter and year-end 2011 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 389786. The replay of the conference call will be available for approximately 2 weeks following the call.

Interested parties may also listen to a simultaneous webcast of the conference call by logging onto US Silica’s website at www.ussilica.com in the Investors Resources section. A replay of the webcast will also be available for approximately 2 weeks following the call.

About U.S. Silica Holdings, Inc.

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 and a variety of attractive industrial and specialty products end markets. During its 112-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, Maryland.

Forward-Looking Statements

This press release includes "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include but are not limited to our plans, objectives, expectations and intentions and other statements that contain words such as "expects," "contemplates," "anticipates," "plans," "intends," "believes" and variations of such words or similar expressions that predict or indicate future events, or that do not relate to historical matters. These statements are based on our current beliefs or expectations and are inherently subject to significant uncertainties and changes in circumstances, many of which are beyond our control. There can be no assurance that our beliefs or expectations will be achieved. Actual results may differ materially from our beliefs or expectations due to economic, business, competitive, market and regulatory factors.

Source: U.S. Silica Holdings, Inc.

U.S. Silica Holdings, Inc.
855-SILICA-7 (855-745-4227)
IR@ussilica.com