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        <filer>
          <filerCredentials>
            <cik>0001983635</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0001430162</issuerCik>
        <issuerName>Cosan S.A.</issuerName>
        <secFileNumber>001-40155</secFileNumber>
        <issuerAddress>
          <com:street1>AV. BRIGADEIRO FARIA LIMA</com:street1>
          <com:street2>4100, 16TH FLOOR</com:street2>
          <com:city>SAO PAUO, SP</com:city>
          <com:stateOrCountry>D5</com:stateOrCountry>
          <com:zipCode>04538-132</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>55-11-3897-9797</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Palania Corp</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>ADR</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Citi Global Wealth Inc.</name>
          <address>
            <com:street1>388 Greenwich Street</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10013</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>200000</noOfUnitsSold>
        <aggregateMarketValue>3064000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>1874070932</noOfUnitsOutstanding>
        <approxSaleDate>07/05/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>ADR</securitiesClassTitle>
        <acquiredDate>06/01/2018</acquiredDate>
        <natureOfAcquisitionTransaction>Corporate Compensation Plan</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>200000</amountOfSecuritiesAcquired>
        <paymentDate>06/01/2018</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>07/05/2023</noticeDate>
        <signature>/s/ Marcelo Martins</signature>
      </noticeSignature>
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text: 144
  0001983635
  XXXXXXXX
  LIVE
  0001430162
  Cosan S.A.
  001-40155
  AV. BRIGADEIRO FARIA LIMA
  4100, 16TH FLOOR
  SAO PAUO, SP
  D5
  04538-132
  55-11-3897-9797
  Palania Corp
  Director
  ADR
  Citi Global Wealth Inc.
  388 Greenwich Street
  New York
  NY
  10013
  200000
  3064000.00
  1874070932
  07/05/2023
  NYSE
  ADR
  06/01/2018
  Corporate Compensation Plan
  Issuer
  N
  200000
  06/01/2018
  N/A
  Y
  07/05/2023
  /s/ Marcelo Martins