U.S. Silica Holdings, Inc.

Good morning and welcome to the U.S. Silica second quarter 2021 earnings conference call. At this time, all participants are in a listen-only mode. A question and answer session will follow the formal presentation. If anyone should require operator assistance during the conference, please press star zero on your telephone keypad. As a reminder, this conference is being recorded. It is now my pleasure to introduce you to one of our hosts, Mr. Don Merrill, Executive Vice President and Chief Financial Officer.

Thank you, Operator. I'd like to take the opportunity this morning to announce the latest addition to our team. I'm very happy to report that Patricia Gill has joined us as the new vice president of investor relations at U.S. Silica. Patricia has over 15 years of financial experience, including investor relations and sell side equity research. She also brings ESG consulting experience and is a fundamentals of sustainability accounting credential holder from SASB. Welcome to our company, Patricia. And with that, I'll turn the call over to her.

Thank you, Don, and good morning, everyone. I'd like to thank you for joining us today for U.S. Silica's second quarter 2021 earnings conference call. Leading the call today are our Chief Executive Officer, Brian Shin, and Don Merrill, our Executive Vice President and Chief Financial Officer. Before we begin, I would like to remind you of our standard cautionary remarks regarding the forward-looking nature of some of the statements that will be made today. Such forward-looking statements may include comments which are subject to certain risks and uncertainties. For a complete discussion of these risks and uncertainties, we encourage you to read the company's press release and our documents on file with the SEC. Additionally, we may refer to the non-GAAP measures of adjusted EBITDA and segment contribution margin during this call. Please refer to today's press release or our public filings for a full reconciliation of adjusted EBITDA to net income and the definition of segment contribution margin. And with that, I would like to turn the call over to our CEO, Mr. Brian Shin. Brian?