<SEC-DOCUMENT>0001950047-25-009249.txt : 20251124
<SEC-HEADER>0001950047-25-009249.hdr.sgml : 20251124
<ACCEPTANCE-DATETIME>20251124162137
ACCESSION NUMBER:		0001950047-25-009249
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251124
DATE AS OF CHANGE:		20251124

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NPK International Inc.
		CENTRAL INDEX KEY:			0000071829
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MISCELLANEOUS EQUIPMENT RENTAL & LEASING [7350]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				721123385
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-02960
		FILM NUMBER:		251513293

	BUSINESS ADDRESS:	
		STREET 1:		9320 LAKESIDE BOULEVARD
		STREET 2:		SUITE 100
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381
		BUSINESS PHONE:		281-362-6800

	MAIL ADDRESS:	
		STREET 1:		9320 LAKESIDE BOULEVARD
		STREET 2:		SUITE 100
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEWPARK RESOURCES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW PARK MINING CO
		DATE OF NAME CHANGE:	19720828

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Lewis Michael A
		CENTRAL INDEX KEY:			0001423238
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		121 SW SALMON STREET
		STREET 2:		1WTC1301
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97204
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001423238</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0000071829</issuerCik>
            <issuerName>NPK International Inc.</issuerName>
            <secFileNumber>001-02960</secFileNumber>
            <issuerAddress>
                <ns2:street1>9320 Lakeside Boulevard</ns2:street1>
                <ns2:city>The Woodlands</ns2:city>
                <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                <ns2:zipCode>77381</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(281)362-6800</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MICHAEL LEWIS</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>4026</noOfUnitsSold>
            <aggregateMarketValue>46379.52</aggregateMarketValue>
            <noOfUnitsOutstanding>84494699</noOfUnitsOutstanding>
            <approxSaleDate>11/24/2025</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/18/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>4026</amountOfSecuritiesAcquired>
            <paymentDate>05/18/2024</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for MICHAEL LEWIS</name>
                <address>
                    <ns2:street1>9320 Lakeside Boulevard</ns2:street1>
                    <ns2:city>The Woodlands</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>77381</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/25/2025</saleDate>
            <amountOfSecuritiesSold>2013</amountOfSecuritiesSold>
            <grossProceeds>20796.50</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>11/24/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>03/07/2025</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Michael Anthony Lewis</signature>
        </noticeSignature>
    </formData>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
