content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001680357</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0001801368</issuerCik>
        <issuerName>MP Materials Corp.</issuerName>
        <secFileNumber>001-39277</secFileNumber>
        <issuerAddress>
          <com:street1>1700 S. Pavilion Center Drive, Suite 800</com:street1>
          <com:city>Las Vegas</com:city>
          <com:stateOrCountry>NV</com:stateOrCountry>
          <com:zipCode>89135</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>702-844-6111</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Andrew McKnight</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue - 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>317750</noOfUnitsSold>
        <aggregateMarketValue>5697257.5</aggregateMarketValue>
        <noOfUnitsOutstanding>165316817</noOfUnitsOutstanding>
        <approxSaleDate>05/16/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>01/24/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Pre-IPO</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>317750</amountOfSecuritiesAcquired>
        <paymentDate>01/24/2020</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/16/2024</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Andrew McKnight</signature>
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text: 144
  0001680357
  XXXXXXXX
  LIVE
  0001801368
  MP Materials Corp.
  001-39277
  1700 S. Pavilion Center Drive, Suite 800
  Las Vegas
  NV
  89135
  702-844-6111
  Andrew McKnight
  Affiliate
  Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue - 6th Floor
  New York
  NY
  10017
  317750
  5697257.5
  165316817
  05/16/2024
  NYSE
  Common Stock
  01/24/2020
  Pre-IPO
  Issuer
  N
  317750
  01/24/2020
  N/A
  Y
  05/16/2024
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Andrew McKnight