November 7, 2024 Matthew Giljum Chief Financial Officer Arch Resources, Inc 1 City Place Drive Suite 300 St. Louis, Missouri 63141 Re: Arch Resources, Inc Form 10-K for the Fiscal year Ended December 31, 2023 Filed February 15, 2024 File No. 001-13105 Dear Matthew Giljum: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Energy & Transportation cc: Charlie Carpenter