Summit Materials, Inc. (NYSE:SUM) Q2 2021 Earnings Conference Call August 5, 2021 11:00 AM ET Â Company Participants Karli Anderson - Investor Relations Anne Noonan - Chief Executive Officer Brian Harris - Chief Financial Officer Conference Call Participants Stanley Elliott - Stifel Trey Grooms - Stephens Inc. Paul Roger - Exane BNP Paribas Kathryn Thompson - Thompson Research Garik Shmois - Loop Capital Collin Verron - Jefferies Brent Thielman - D.A. Davidson Adam Thalhimer - Thompson Davis Jerry Revich - ...