Perma-Fix Environmental Services, Inc. (NASDAQ:PESI) Q1 2021 Earnings Conference Call May 6, 2021 11:00 AM ET Company Participants David Waldman – Investor Relations Mark Duff – President and Chief Executive Officer Ben Naccarato – Chief Financial Officer Conference Call Participants Howard Brous – Wellington Shields Operator Good day, everyone, and welcome to the Perma-Fix First Quarter 2021 Conference Call. [Operator Instructions] Please note that this call may be recorded. It is now my pleasure to turn t ...