<SEC-DOCUMENT>0001213900-26-083608.txt : 20260731
<SEC-HEADER>0001213900-26-083608.hdr.sgml : 20260731
<ACCEPTANCE-DATETIME>20260731071506
ACCESSION NUMBER:		0001213900-26-083608
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260729
FILED AS OF DATE:		20260731
DATE AS OF CHANGE:		20260731

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Munro Andrew
		CENTRAL INDEX KEY:			0002066533
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41903
		FILM NUMBER:		261225414

	MAIL ADDRESS:	
		STREET 1:		1211 E 4TH ST.
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78702

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			T1 Energy Inc.
		CENTRAL INDEX KEY:			0001992243
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				933205861
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1211 E 4TH ST.
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78702
		BUSINESS PHONE:		409-599-5706

	MAIL ADDRESS:	
		STREET 1:		1211 E 4TH ST.
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78702

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FREYR Battery, Inc. /DE/
		DATE OF NAME CHANGE:	20230901
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>marketforms-73647.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-07-29</periodOfReport>

    <issuer>
        <issuerCik>0001992243</issuerCik>
        <issuerName>T1 Energy Inc.</issuerName>
        <issuerTradingSymbol>TE</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002066533</rptOwnerCik>
            <rptOwnerName>Munro Andrew</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>5402 EAU CLAIRE DRI</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RANCHO PALOS VERDES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90275</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chief Legal &amp; Policy Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-07-29</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.72</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-07-29</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>38989</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.72</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>61011</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units (RSUs)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-07-29</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Shares of Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>200000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This transaction represents the vesting on July 29, 2026 of 100,000 Restricted Stock Units (&quot;RSUs&quot;) granted on July 29, 2025 under the Company's 2021 Equity Incentive Plan (as amended and restated on April 22, 2024) and reported on the Form 4 filed July 31, 2025. This relates to the vesting of the first of three equal annual installments (further details in Note 4 below). Each RSU represents the right to receive one share of Common Stock. These 100,000 RSUs were settled in shares of Common Stock on July 29, 2026.</footnote>
        <footnote id="F2">This transaction represents 38,989 shares of Common Stock withheld for tax obligations in connection with the settlement on July 29, 2026 of 100,000 RSUs that vested on July 29, 2026 (the first of three equal annual installments). The vesting of those 100,000 RSUs is described in Note 1 above.</footnote>
        <footnote id="F3">The 61,011 shares of Common Stock beneficially owned following the reported transactions reflects: (i) 100,000 shares acquired upon vesting of RSUs on July 29, 2026 (Note 1 above); less (v) 38,989 shares withheld for tax upon settlement of RSUs on July 29, 2026 (Note 2 above).</footnote>
        <footnote id="F4">The RSUs reported on the Form 4 filed July 31, 2025 were granted for a total of 300,000 RSUs vesting in three equal annual installments: one-third vested on July 29, 2026; one-third will vest on July 29, 2027; and the remaining one-third will vest on July 29, 2028. Following the vesting and settlement of the first installment reported herein, 200,000 RSUs remain outstanding.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Harold Callo Sanchez, as Attorney-in-Fact</signatureName>
        <signatureDate>2026-07-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
