Arq(ARQ) - 2020 Q4 - Annual Report

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Name of registrant as specified in its charter) (State of incorporation) (IRS Employer Delaware 27-5472457 Identification No.) ______________________________________ FORM 10-K ______________________________________ 8051 E. Maplewood Ave, Suite 210, Greenwood Village, CO, 80111 (Address of principal executive offices) (Zip Code) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Registrant's telephon ...