<SEC-DOCUMENT>0000899243-17-008445.txt : 20170323
<SEC-HEADER>0000899243-17-008445.hdr.sgml : 20170323
<ACCEPTANCE-DATETIME>20170323141019
ACCESSION NUMBER:		0000899243-17-008445
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170315
FILED AS OF DATE:		20170323
DATE AS OF CHANGE:		20170323

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			METHANEX CORP
		CENTRAL INDEX KEY:			0000886977
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			1231

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			M&G INVESTMENT MANAGEMENT LTD
		CENTRAL INDEX KEY:			0000922898

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20115
		FILM NUMBER:		17709382

	BUSINESS ADDRESS:	
		STREET 1:		LAURENCE POUNTNEY HILL
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4R OHH
		BUSINESS PHONE:		01144207 548-3266

	MAIL ADDRESS:	
		STREET 1:		LAURENCE POUNTNEY HILL
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4R OHH
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2017-03-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000886977</issuerCik>
        <issuerName>METHANEX CORP</issuerName>
        <issuerTradingSymbol>MEOH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000922898</rptOwnerCik>
            <rptOwnerName>M&amp;G INVESTMENT MANAGEMENT LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>LAURENCE POUNTNEY HILL</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode>EC4R 0HH</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17510018</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Pecuniary Interest</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>M&amp;G Investment Management Limited, By: /s/ Mark Thomas, Mark Thomas, Head of M&amp;G Regional Shareholder Disclosures, Investment Operations</signatureName>
        <signatureDate>2017-03-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
