<SEC-DOCUMENT>0001193125-21-010972-index.html : 20210119
<SEC-HEADER>0001193125-21-010972.hdr.sgml : 20210119
<ACCEPTANCE-DATETIME>20210119101901
ACCESSION NUMBER:		0001193125-21-010972
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20210303
FILED AS OF DATE:		20210119
DATE AS OF CHANGE:		20210119

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CMC Materials, Inc.
		CENTRAL INDEX KEY:			0001102934
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				364324765
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30205
		FILM NUMBER:		21534423

	BUSINESS ADDRESS:	
		STREET 1:		870 NORTH COMMONS DRIVE
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504
		BUSINESS PHONE:		6303755461

	MAIL ADDRESS:	
		STREET 1:		870 N COMMONS DR
		CITY:			AURORA
		STATE:			IL
		ZIP:			60504

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CABOT MICROELECTRONICS CORP
		DATE OF NAME CHANGE:	20000110
</SEC-HEADER>
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<SEQUENCE>1
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Document 1 - file: d41869ddef14a.htm

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Document 2 - file: g41869g01p01.jpg

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Document 3 - file: g41869g02p02.jpg

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<TEXT>
Document 4 - file: g41869g06e55.jpg

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Document 5 - file: g41869g31x04.jpg

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Document 6 - file: g41869g40a54.jpg

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Document 7 - file: g41869g41q53.jpg

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<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g41869g47h78.jpg

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Document 9 - file: g41869g47y97.jpg

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Document 10 - file: g41869g60s15.jpg

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Document 11 - file: g41869g87b24.jpg

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Document 12 - file: g41869g90d67.jpg

</DOCUMENT>
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