Operator Good day. And thank you for standing by. Welcome to the first quarter, 2021 Smart Sand Inc. earnings conference call. [Operator Instructions] [Operator Instructions] I would now like to hand the conference over to your speaker today, Josh Jayne Director of Finance and Assistant Treasurer. Please go ahead. Josh Jayne -- Director, Finance, Assistant Treasurer Good morning and thank you for joining us for Smart Sand's first quarter 2021 earnings call. On the call today we have Chuck Young, founder and Chief Executive Officer, Lee Beckelman, Chief Financial Officer and John Young, Chief Operating Officer. Before we begin, I would like to remind all participants that our comments made today will include forward looking statements, which are subject to certain risks and uncertainties that could cause actual results or events to materially different from those anticipated for a complete discussion of such risks and uncertainties, please refer to the company's press release and our documents on file with the SEC. Smart Sand disclaims any intention or obligation to update or revise any financial projections or forward-looking statements, whether because of new information, future events or otherwise, this conference call contains time sensitive information and is accurate only as of the live broadcast today May 5th, 2021. Additionally, we may refer to the non-gap financial measures of contribution margin, EBITDA, adjusted EBITDA and free cash flow during this call. We believe that these measures when used in combination with our gap results, provide us and our investors with useful information to better understand our business. Please refer to our most recent press release or our public filings for our reconciliations of contribution margin to gross profit EBITDA, and adjusted EBITDA to net income and free cashflow to cash flow provided by operating activities.