<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0607</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-04-06</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0002089283</issuerCik>
        <issuerName>Eagle Nuclear Energy Corp.</issuerName>
        <issuerTradingSymbol>NUCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002102317</rptOwnerCik>
            <rptOwnerName>Basi Kuljit Singh</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>5470 KIETZKE LANE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>RENO</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89511</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.0001 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>629587</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SVK Metrix Inc.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Right to receive Earnout Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.0001 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>56805</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SVK Metrix Inc.</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person is the President of SVK Metrix Inc. The Reporting Person disclaims beneficial ownership of the shares held by SVK Metrix Inc., except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F2">On February 24, 2026, the Reporting Person became entitled to receive 56,805 shares of Eagle Nuclear Energy Corp.'s (the &quot;Issuer&quot;) Common Stock (the &quot;Earnout Shares&quot;) pursuant to an &quot;earnout&quot; provision in the Amended and Restated Agreement and Plan of Merger, dated as of September 29, 2025 (as it may be amended, supplemented, or otherwise modified from time to time, the &quot;Merger Agreement&quot;), by and among Spring Valley Acquisition Corp. II, the Issuer, Spring Valley Merger Sub III, Inc., Spring Valley Merger Sub II, Inc., and Eagle Energy Metals Corp., in the event that the metrics described in the following footnote are satisfied during the five-year period following the closing (the &quot;Closing Date&quot;) contemplated in the Merger Agreement.</footnote>
        <footnote id="F3">In the event that the dollar volume-weighted average price (&quot;VWAP&quot;) of the Common Stock equals or exceeds $16.00 per share for twenty (20) trading days within a period of thirty (30) consecutive trading days during the period beginning on the Closing Date and ending on the five-year anniversary of the Closing Date, the Reporting Person will be entitled to receive 56,805 Earnout Shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kuljit Singh Basi</signatureName>
        <signatureDate>2026-04-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
