Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in this Registration Statement on Form S-8 of Arq, Inc., of our report dated March 12, 2024, relating to the consolidated financial statements of Arq, Inc. (the “Company"), appearing in the Annual Report on Form 10-K of the Company for the year ended December 31, 2023, filed with the Securities and Exchange Commission.
/s/ Moss Adams LLP
Denver, Colorado
July 1, 2024