<SEC-DOCUMENT>0000950157-21-001201-index.html : 20211123
<SEC-HEADER>0000950157-21-001201.hdr.sgml : 20211123
<ACCEPTANCE-DATETIME>20211123160804
ACCESSION NUMBER:		0000950157-21-001201
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211123
FILED AS OF DATE:		20211123
DATE AS OF CHANGE:		20211123

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RATCLIFFE JAMES A
		CENTRAL INDEX KEY:			0001207553

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38221
		FILM NUMBER:		211438582

	MAIL ADDRESS:	
		STREET 1:		TEN TRINITY SQUARE
		CITY:			LONDON
		STATE:			X0
		ZIP:			00000

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			INEOS Ltd
		CENTRAL INDEX KEY:			0001771044
		STATE OF INCORPORATION:			Y8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38221
		FILM NUMBER:		211438583

	BUSINESS ADDRESS:	
		STREET 1:		FORT ANNE
		CITY:			DOUGLAS
		STATE:			Y8
		ZIP:			IM1 5PD
		BUSINESS PHONE:		44 20 7190 6300

	MAIL ADDRESS:	
		STREET 1:		38 HANS CRESCENT, KNIGHTSBRIDGE
		CITY:			LONDON
		STATE:			X0
		ZIP:			SW1X 0LZ

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ecovyst Inc.
		CENTRAL INDEX KEY:			0001708035
		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
		IRS NUMBER:				813406833
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 LINDENWOOD DRIVE
		CITY:			MALVERN
		STATE:			PA
		ZIP:			19355
		BUSINESS PHONE:		610-651-4400

	MAIL ADDRESS:	
		STREET 1:		300 LINDENWOOD DRIVE
		CITY:			MALVERN
		STATE:			PA
		ZIP:			19355

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PQ Group Holdings Inc.
		DATE OF NAME CHANGE:	20170531
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<TEXT>
Document 1 - file: form4.html

Document 1 - RAW XML: form4.xml

</DOCUMENT>
</SEC-DOCUMENT>