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        <filer>
          <filerCredentials>
            <cik>0001874198</cik>
            <ccc>XXXXXXXX</ccc>
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        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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        <issuerCik>0001798562</issuerCik>
        <issuerName>TMC the metals Co Inc.</issuerName>
        <secFileNumber>001-39281</secFileNumber>
        <issuerAddress>
          <com:street1>1111 WEST HASTINGS STREET</com:street1>
          <com:street2>15TH FLOOR</com:street2>
          <com:city>VANCOUVER</com:city>
          <com:stateOrCountry>A1</com:stateOrCountry>
          <com:zipCode>V6E 2J3</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>888-458-3420</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>O'Sullivan Anthony</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Shares</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>225 Liberty Street</com:street1>
            <com:street2>Floor 37</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10281</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>164317</noOfUnitsSold>
        <aggregateMarketValue>738262.98</aggregateMarketValue>
        <noOfUnitsOutstanding>362186002</noOfUnitsOutstanding>
        <approxSaleDate>05/21/2025</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Shares</securitiesClassTitle>
        <acquiredDate>03/20/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>TMC the metals Co Inc.</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>164317</amountOfSecuritiesAcquired>
        <paymentDate>03/20/2024</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/21/2025</noticeDate>
        <signature>Anthony O'Sullivan</signature>
      </noticeSignature>
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text: 144
  0001874198
  XXXXXXXX
  LIVE
  0001798562
  TMC the metals Co Inc.
  001-39281
  1111 WEST HASTINGS STREET
  15TH FLOOR
  VANCOUVER
  A1
  V6E 2J3
  888-458-3420
  O'Sullivan Anthony
  Officer
  Common Shares
  Merrill Lynch
  225 Liberty Street
  Floor 37
  New York
  NY
  10281
  164317
  738262.98
  362186002
  05/21/2025
  NASDAQ
  Common Shares
  03/20/2024
  Vesting of restricted stock unit award
  TMC the metals Co Inc.
  N
  164317
  03/20/2024
  Granted as part of issuer equity compensation plan
  Y
  05/21/2025
  Anthony O'Sullivan