<SEC-DOCUMENT>0001386060-26-000046.txt : 20260804
<SEC-HEADER>0001386060-26-000046.hdr.sgml : 20260804
<ACCEPTANCE-DATETIME>20260804162733
ACCESSION NUMBER:		0001386060-26-000046
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20260804
DATE AS OF CHANGE:		20260804

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			METHANEX CORP
		CENTRAL INDEX KEY:			0000886977
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-43811
		FILM NUMBER:		261239163

	BUSINESS ADDRESS:	
		STREET 1:		1800 WATERFRONT CENTER
		STREET 2:		200 BURRARD STREET
		CITY:			VANCOUVER BC CANADA
		STATE:			A1
		ZIP:			00000
		BUSINESS PHONE:		6046847500

	MAIL ADDRESS:	
		STREET 1:		1800 WATERFRONT CENTER
		STREET 2:		200 BURRARD STREET
		CITY:			VANCOUVER BC CANADA

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Boston Partners
		CENTRAL INDEX KEY:			0001386060
		ORGANIZATION NAME:           	
		EIN:				980202744
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		ONE BEACON STREET
		STREET 2:		30TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02108
		BUSINESS PHONE:		617-832-8200

	MAIL ADDRESS:	
		STREET 1:		ONE BEACON STREET
		STREET 2:		30TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02108

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Robeco Investment Management, Inc.
		DATE OF NAME CHANGE:	20070111
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:ns1="http://www.sec.gov/edgar/common">
  <schemaVersion>X0202</schemaVersion>
<headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001386060</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>06/30/2026</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000886977</issuerCik>
        <issuerName>METHANEX CORP</issuerName>
        <issuerCusips>
          <issuerCusipNumber>59151K108</issuerCusipNumber>
        </issuerCusips>
        <issuerPrincipalExecutiveOfficeAddress>
          <ns1:street1>1800 WATERFRONT CENTER</ns1:street1>
          <ns1:street2>200 BURRARD STREET</ns1:street2>
          <ns1:city>VANCOUVER</ns1:city>
          <ns1:stateOrCountry>A1</ns1:stateOrCountry>
          <ns1:zipCode>00000</ns1:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Boston Partners</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>4049706</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>4110146.27</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>4110146.27</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.31</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>METHANEX CORP</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>1800 WATERFRONT CENTER, 200 BURRARD STREET, VANCOUVER, BRITISH COLUMBIA, CANADA
00000</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Boston Partners</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>ONE BEACON STREET
30TH FLOOR
BOSTON, Massachusetts
02108</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Boston Partners - DELAWARE</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>4,110,146.3</amountBeneficiallyOwned>
        <classPercent>5.31</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>Boston Partners - 4,049,706</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>Boston Partners - 0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>Boston Partners - 4,110,146.3</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>Boston Partners - 0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>This Schedule is being filed with respect to 4,110,146.27 shares of METHANEX CORP (the Common Stock) held by Boston Partners on 06/30/2026 for the discretionary account of certain clients. By reason of rule 13d-3 under the act Boston Partners may be deemed to be a beneficial owner of such Common Stock. To the knowledge of Boston Partners no person has the right to receive or the power to direct the receipt of dividends from or the proceeds from the sale of such Common Stock which represents more than 5% of the outstanding shares of the Common Stock referred to in item 4(b) hereof.</ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Boston Partners</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Ali Farooqi</signature>
        <title>Ali Farooqi / Senior Compliance Manager</title>
        <date>08/04/2026</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
