CMC Materials, Inc. announced that Scott D. Beamer has resigned as Chief Financial Officer of the company. Jeanette A. Press, the company?s current Principal Accounting Officer and Controller, has been appointed by the company?s Board of Directors to serve as Interim Chief Financial Officer, effective immediately, while the company undertakes a search for a permanent successor. Mr. Beamer?s departure is not related to any disagreement with the company over its accounting principles or practices, or financial statement disclosures.