<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<headerData>
<submissionType>144</submissionType>
<filerInfo>
<filer>
<filerCredentials>
<cik>0001975191</cik>
<ccc>XXXXXXXX</ccc>
</filerCredentials>
</filer>
<liveTestFlag>LIVE</liveTestFlag>
</filerInfo>
</headerData>
<formData>
<issuerInfo>
<issuerCik>0001711375</issuerCik>
<issuerName>LOMA NEGRA C.I.A.S.A.</issuerName>
<secFileNumber>001-38262</secFileNumber>
<issuerAddress>
<street1 xmlns="http://www.sec.gov/edgar/common">CECILIA GRIERSON 355</street1>
<street2 xmlns="http://www.sec.gov/edgar/common">4TH FLOOR</street2>
<city xmlns="http://www.sec.gov/edgar/common">BUENOS AIRES</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">C1</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">C1107CPG</zipCode>
</issuerAddress>
<issuerContactPhone>54 114-319-3000</issuerContactPhone>
<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Faifman Sergio Damian </nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
<relationshipsToIssuer>
<relationshipToIssuer>Officer</relationshipToIssuer>
<relationshipToIssuer>Director</relationshipToIssuer>
</relationshipsToIssuer>
</issuerInfo>
<securitiesInformation>
<securitiesClassTitle>ADS</securitiesClassTitle>
<brokerOrMarketmakerDetails>
<name>PERSHING LLC</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">One Pershing Plaza, Jersey City, USA</street1>
<city xmlns="http://www.sec.gov/edgar/common">Jersey City</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">X1</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">07399</zipCode>
</address>
</brokerOrMarketmakerDetails>
<noOfUnitsSold>8474</noOfUnitsSold>
<aggregateMarketValue>105000</aggregateMarketValue>
<noOfUnitsOutstanding>39646</noOfUnitsOutstanding>
<approxSaleDate>05/14/2025</approxSaleDate>
<securitiesExchangeName>NYSE</securitiesExchangeName>
</securitiesInformation>
<securitiesToBeSold>
<securitiesClassTitle>ADS</securitiesClassTitle>
<acquiredDate>03/01/2023</acquiredDate>
<natureOfAcquisitionTransaction>Compensation plan</natureOfAcquisitionTransaction>
<nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
<isGiftTransaction>N</isGiftTransaction>
<amountOfSecuritiesAcquired>8474</amountOfSecuritiesAcquired>
<paymentDate>03/01/2023</paymentDate>
<natureOfPayment>N/A</natureOfPayment>
</securitiesToBeSold>
<nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
<noticeSignature>
<noticeDate>05/14/2025</noticeDate>
<signature>SERGIO DAMIAN FAIFMAN</signature>
</noticeSignature>
</formData>
</edgarSubmission>
