Ecovyst Inc. at its Annual Meeting of Stockholders held on May 8, 2024, elected Donald Althoff to serve on the Company?s Board for a term of three years. As previously disclosed in the Company?s Amendment No. 1 to Form 8-K filed on May 9, 2024, the Board appointed Sarah Lorance as a member of the Audit Committee of the Board. In addition, on May 8, 2024, the Board appointed Kevin Fogarty as a member of the Compensation Committee of the Board.