<SEC-DOCUMENT>0001104659-24-105501.txt : 20241002
<SEC-HEADER>0001104659-24-105501.hdr.sgml : 20241002
<ACCEPTANCE-DATETIME>20241002172841
ACCESSION NUMBER:		0001104659-24-105501
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240930
FILED AS OF DATE:		20241002
DATE AS OF CHANGE:		20241002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SK INC.
		CENTRAL INDEX KEY:			0001947998
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			M5
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40503
		FILM NUMBER:		241348924

	BUSINESS ADDRESS:	
		STREET 1:		26, JONG-RO, JONGNO-GU
		CITY:			SEOUL
		STATE:			M5
		ZIP:			03188
		BUSINESS PHONE:		82221215114

	MAIL ADDRESS:	
		STREET 1:		26, JONG-RO, JONGNO-GU
		CITY:			SEOUL
		STATE:			M5
		ZIP:			03188

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			8 Rivers Capital, LLC
		CENTRAL INDEX KEY:			0001981100
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40503
		FILM NUMBER:		241348925

	BUSINESS ADDRESS:	
		STREET 1:		406 BLACKWELL STREET
		STREET 2:		4TH FLOOR
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27701
		BUSINESS PHONE:		(919) 667-1800

	MAIL ADDRESS:	
		STREET 1:		406 BLACKWELL STREET
		STREET 2:		4TH FLOOR
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27701

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NET Power Inc.
		CENTRAL INDEX KEY:			0001845437
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRICAL INDUSTRIAL APPARATUS [3620]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				981580612
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		320 RONEY STREET, SUITE 200
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27701
		BUSINESS PHONE:		(919) 287-4750

	MAIL ADDRESS:	
		STREET 1:		320 RONEY STREET, SUITE 200
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27701

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Rice Acquisition Corp. II
		DATE OF NAME CHANGE:	20210210
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2425478-1_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-09-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001845437</issuerCik>
        <issuerName>NET Power Inc.</issuerName>
        <issuerTradingSymbol>NPWR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001981100</rptOwnerCik>
            <rptOwnerName>8 Rivers Capital, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>406 BLACKWELL STREET, 4TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DURHAM</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27701</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001947998</rptOwnerCik>
            <rptOwnerName>SK INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>26, JONG-RO, JONGNO-GU</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SEOUL</rptOwnerCity>
            <rptOwnerState>M5</rptOwnerState>
            <rptOwnerZipCode>03188</rptOwnerZipCode>
            <rptOwnerStateDescription>KOREA, REPUBLIC OF</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-09-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>46585</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.0685</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24723</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.20. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Asheley Kinsey, Chief Financial Officer of 8 Rivers Capital, LLC</signatureName>
        <signatureDate>2024-10-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Munhyuk Jang, Head of Corporate Management Department of SK Inc.</signatureName>
        <signatureDate>2024-10-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
