Item 8.01 Other Events. On February 15, 2022, CMC Materials, Inc. issued a press release entitled "CMC Materials Announces Favorable Conclusion in Patent Dispute with DuPont; U.S. Presidential Review Ends Following ITC's Finding of Violation By DuPont," which is attached hereto as Exhibit 99.1 and incorporated herein by reference.



Item 9.01               Financial Statements and Exhibits.
(d)                     Exhibits

Exhibit No.             Description
  99.1                  Press Release, dated February 15, 2022, entitled "CMC Materials Announces
                        Favorable Conclusion in Patent Dispute with DuPont; U.S. Presidential Review
                        Ends Following ITC's Finding of Violation By DuPont."
104                     Cover Page Interactive Data File - The Cover Page Interactive Data File does
                        not appear in the Interactive Data File because its XBRL tags are embedded
                        within the Inline XBRL document.

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