Ecovyst (ECVT) - 2024 Q4 - Annual Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38221 Ecovyst Inc. (State or other jurisdiction of incorporation or organization) 300 Lindenwood Drive Malvern, Pennsylvania 19355 (Address of principal executive offices) (Zip Code) Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT O ...