Smart Sand(SND) - 2021 Q1 - Quarterly Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION SMART SAND, INC. (Exact name of registrant as specified in its charter) OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from ___ to ___ Commission file number 001-37936 FORM 10-Q _____________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2021 Washington, D.C. 20549 ...