U.S. Silica Announces Timing of Earnings Release and Investor Call

FREDERICK, Md., April 3, 2018

Investors are invited to listen to a live webcast of the conference call by visiting the "Investor Resources" section of the Company's website at www.ussilica.com. The webcast will be archived for one year. The call can also be accessed live over the telephone by dialing (877) 869-3847 or for international callers, (201) 689-8261. A replay will be available shortly after the call and can be accessed by dialing (877) 660-6853 or for international callers, (201) 612-7415. The conference ID for the replay is 13678325. The replay will be available through May 23, 2018.

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 118-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 nine oil and gas sand production plants. The Company is headquartered in Frederick, Maryland and also has offices located in Chicago, Illinois and Houston, Texas.

Investor Contacts 
Michael Lawson
Vice President of Investor Relations and Corporate Communications
301-682-0304
lawsonm@ussilica.com   

Nick Shaver
Investor Relations Manager
281-394-9630
shavern@ussilica.com