<SEC-DOCUMENT>0001209191-20-039253.txt : 20200630
<SEC-HEADER>0001209191-20-039253.hdr.sgml : 20200630
<ACCEPTANCE-DATETIME>20200629195540
ACCESSION NUMBER:		0001209191-20-039253
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200618
FILED AS OF DATE:		20200629
DATE AS OF CHANGE:		20200629

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kempf Kenneth C
		CENTRAL INDEX KEY:			0001816199

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34198
		FILM NUMBER:		20999298

	MAIL ADDRESS:	
		STREET 1:		610 NEWPORT CENTER DRIVE
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SunOpta Inc.
		CENTRAL INDEX KEY:			0000351834
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-FARM PRODUCT RAW MATERIALS [5150]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			Z4
		FISCAL YEAR END:			0102

	BUSINESS ADDRESS:	
		STREET 1:		2233 ARGENTIA ROAD
		STREET 2:		SUITE 401
		CITY:			MISSISSAUGA
		STATE:			A6
		ZIP:			L5N 2X7
		BUSINESS PHONE:		(905) 455-1990

	MAIL ADDRESS:	
		STREET 1:		2233 ARGENTIA ROAD
		STREET 2:		SUITE 401
		CITY:			MISSISSAUGA
		STATE:			A6
		ZIP:			L5N 2X7

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUNOPTA INC
		DATE OF NAME CHANGE:	20031107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STAKE TECHNOLOGY LTD
		DATE OF NAME CHANGE:	19940901
</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>2020-06-18</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000351834</issuerCik>
        <issuerName>SunOpta Inc.</issuerName>
        <issuerTradingSymbol>STKL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001816199</rptOwnerCik>
            <rptOwnerName>Kempf Kenneth C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7301 OHMS LANE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 600</rptOwnerStreet2>
            <rptOwnerCity>EDINA</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55439</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kenneth C. Kempf</signatureName>
        <signatureDate>2020-06-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
