Attached files

file filename
EX-31.2 - EX-31.2 - CMC Materials, Inc.ccmp-20200930xex312.htm
EX-31.1 - EX-31.1 - CMC Materials, Inc.ccmp-20200930xex311.htm
10-K - 10-K - CMC Materials, Inc.ccmp-20200930.htm
EX-24.1 - EX-24.1 - CMC Materials, Inc.ccmp-20200930xex241.htm
EX-23.1 - EX-23.1 - CMC Materials, Inc.ccmp-20200930xex231.htm
EX-21.1 - EX-21.1 - CMC Materials, Inc.ccmp-20200930xex211.htm
EX-10.14 - EX-10.14 - CMC Materials, Inc.ex1014shorttermincenti.htm
EX-10.8 - EX-10.8 - CMC Materials, Inc.ex108cmcmaterialsinc20.htm
EX-10.6 - EX-10.6 - CMC Materials, Inc.ex106directorscashcomp.htm
EX-10.3 - EX-10.3 - CMC Materials, Inc.ex103directorsdeferred.htm
EX-10.1 - EX-10.1 - CMC Materials, Inc.ex101cmcmaterialsinc20.htm
EX-4.2 - EX-4.2 - CMC Materials, Inc.ex42descriptionofcompa.htm
EX-4.1 - EX-4.1 - CMC Materials, Inc.stockcert.htm

Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Annual Report of CMC Materials, Inc. (the "Company") on Form 10-K for the fiscal year ended September 30, 2020, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), each of the undersigned officers of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
Date: November 17, 2020/s/ DAVID H. LI
David H. Li
Chief Executive Officer
Date: November 17, 2020/s/ SCOTT D. BEAMER
Scott D. Beamer
Chief Financial Officer