ARCH - Arch Resources Inc (ARCH) Q1 2021 Earnings Call Transcript April, 22 2021 11:00 PM Arch Coal Inc. Class A Image source: The Motley Fool. Arch Resources Inc (NYSE: ARCH) Q1 2021 Earnings Call Apr 22, 2021 , 10:00 a.m. ET Operator Continue reading For further details see: Arch Resources Inc (ARCH) Q1 2021 Earnings Call Transcript