Exhibit 23.3
582 Industrial Park Road, Bluefield, VA 24605-9364 ■ Phone 276.322.5467
www.mma1.com ■ info@mma1.com
CONSENT OF MARSHALL MILLER & ASSOCIATES, INC.
February 12, 2024
Via Email: SStewart@archrsc.com
Mr. Wm. Scott Stewart
Arch Resources, Inc.
1 CityPlace Drive, Suite 300
St. Louis, Missouri 63141
Reference: Consent of Independent Experts
With respect to the SEC filings by Arch Resources, Inc., including but not limited to its Annual Report on Form 10-K for the year ended December 31, 2023, we hereby consent (i) to the use of the information contained the Technical Report Summary for Leer South (each, a “TRS”), (ii) ) to the use of Marshall Miller & Associates, Inc.’s name, any quotation from or summarization of the TRS, and (iii) to the filing of the TRS as an exhibit.
We further wish to advise that Marshall Miller & Associates, Inc. was not employed on a contingent basis and that at the time of preparation of our report, as well as at present, neither Marshall Miller & Associates, Inc. nor any of its employees had, or now has, a substantial interest in Arch Resources, Inc. or any of its affiliates or subsidiaries.
Respectfully submitted,
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By: | /s/ | |
Name: |
| ![]() Steven A. Keim |
Title: |
| President |
Date: |
| February 12, 2024 |
ENERGY & MINERAL RESOURCES ■ HYDROGEOLOGY & GEOLOGY ■ GEOPHYSICAL LOGGING SERVICES
CARBON MANAGEMENT ■ EXPERT WITNESS TESTIMONY ■ MINING ENGINEERING ■ PETROLEUM ENGINEERING