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                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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            <issuerCik>0001710366</issuerCik>
            <issuerName>CORE NATURAL RESOURCES, INC.</issuerName>
            <secFileNumber>001-38147</secFileNumber>
            <issuerAddress>
                <ns2:street1>275 Technology Drive</ns2:street1>
                <ns2:street2>Suite</ns2:street2>
                <ns2:city>Canonsburg</ns2:city>
                <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                <ns2:zipCode>15317</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>724-416-8300</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>HOLLY KELLER KOEPPEL</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>8815</noOfUnitsSold>
            <aggregateMarketValue>663751.87</aggregateMarketValue>
            <noOfUnitsOutstanding>54016722</noOfUnitsOutstanding>
            <approxSaleDate>03/31/2025</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/13/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Compensation for Past Services</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>7424</amountOfSecuritiesAcquired>
            <paymentDate>01/13/2025</paymentDate>
            <natureOfPayment>Compensation</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/09/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Compensation for Past Services</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1391</amountOfSecuritiesAcquired>
            <paymentDate>02/09/2024</paymentDate>
            <natureOfPayment>Compensation</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/31/2025</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Holly Keller Koeppel</signature>
        </noticeSignature>
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144
0001210399
XXXXXXXX
LIVE
0001710366
CORE NATURAL RESOURCES, INC.
001-38147
275 Technology Drive
Suite
Canonsburg
PA
15317
724-416-8300
HOLLY KELLER KOEPPEL
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
8815
663751.87
54016722
03/31/2025
NYSE
Common
01/13/2025
Compensation for Past Services
Issuer
N
7424
01/13/2025
Compensation
Common
02/09/2024
Compensation for Past Services
Issuer
N
1391
02/09/2024
Compensation
Y
03/31/2025
/s/ Holly Keller Koeppel