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Arch Resources to Announce Fourth Quarter and Full Year 2020 Results on February 9PRNewsWire • 01/26/21
Arch Resources: Expanding Met Coal Production While Winding Down Thermal CoalSeeking Alpha • 11/28/20
Arch Resources (ARCH) Down 19.9% Since Last Earnings Report: Can It Rebound?Zacks Investment Research • 11/21/20
Arch Resources, Inc. (ARCH) CEO Paul Lang on Q3 2020 Results - Earnings Call TranscriptSeeking Alpha • 10/22/20
Arch Subsidiaries Claim Three of Nation's Most Prestigious Awards for Safety and Community EngagementPRNewsWire • 10/15/20