<SEC-DOCUMENT>0000950157-21-001201.txt : 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>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-11-23</periodOfReport>

    <issuer>
        <issuerCik>0001708035</issuerCik>
        <issuerName>Ecovyst Inc.</issuerName>
        <issuerTradingSymbol>PQG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001771044</rptOwnerCik>
            <rptOwnerName>INEOS Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O IQ EQ, VICTORIA ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DOUGLAS</rptOwnerCity>
            <rptOwnerState>Y8</rptOwnerState>
            <rptOwnerZipCode>IM2 4DF</rptOwnerZipCode>
            <rptOwnerStateDescription>ISLE OF MAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001207553</rptOwnerCik>
            <rptOwnerName>RATCLIFFE JAMES A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O IQ EQ, VICTORIA ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DOUGLAS</rptOwnerCity>
            <rptOwnerState>Y8</rptOwnerState>
            <rptOwnerZipCode>IM2 4DF</rptOwnerZipCode>
            <rptOwnerStateDescription>ISLE OF MAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01</value>
            </securityTitle>
            <transactionDate>
                <value>2021-11-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2775034</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.12</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25147640</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">James A. Ratcliffe, as the majority owner of INEOS Limited, has the power to control the voting and disposition of the shares of common stock held by INEOS Limited. Mr. Ratcliffe disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of such securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.</footnote>
    </footnotes>

    <remarks>*The Power of Attorney executed by James A. Ratcliffe, authorizing the signatory to sign and file this report on James A. Ratcliffe's behalf, filed as Exhibit 99.1 to the Schedule 13D filed with the Securities and Exchange Commission on November 23, 2021 by the Reporting Persons with respect to the common stock of the Issuer, is hereby incorporated by reference.</remarks>

    <ownerSignature>
        <signatureName>INEOS LIMITED, /s/ Jonny Ginns, Name: Jonny Ginns, Title: Authorized Signatory</signatureName>
        <signatureDate>2021-11-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>JAMES A. RATCLIFFE /s/ Jonny Ginns, attorney-in-fact for James A. Ratcliffe*</signatureName>
        <signatureDate>2021-11-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
