<SEC-DOCUMENT>0001209191-19-038164.txt : 20190619
<SEC-HEADER>0001209191-19-038164.hdr.sgml : 20190619
<ACCEPTANCE-DATETIME>20190619213352
ACCESSION NUMBER:		0001209191-19-038164
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190614
FILED AS OF DATE:		20190619
DATE AS OF CHANGE:		20190619

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Buick Mike
		CENTRAL INDEX KEY:			0001730712

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34198
		FILM NUMBER:		19907352

	MAIL ADDRESS:	
		STREET 1:		7301 OHMS LANE SUITE 600
		CITY:			EDINA
		STATE:			MN
		ZIP:			55439

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:			0101

	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>4/A
<SEQUENCE>1
<FILENAME>doc4a.xml
<DESCRIPTION>FORM 4/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2019-06-14</periodOfReport>

    <dateOfOriginalSubmission>2019-06-18</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001730712</rptOwnerCik>
            <rptOwnerName>Buick Mike</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7301 OHMS LANE SUITE 600</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>EDINA</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55439</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP, Beverage and Snack</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-06-14</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>62814</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>62814</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>62814</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each Performance Stock Unit represents a contingent right to receive one share of STKL common stock.</footnote>
        <footnote id="F2">This amendment is filed for the sole purpose of amending and restating footnote (2) to the original Form 4 as follows: The Performance Stock Units (&quot;PSUs&quot;) vest based upon the Company's Adjusted EBITDA, excluding the international organic ingredients and organic soy and corn operations (the &quot;Performance Measure&quot;), as reported by the Company in its Annual Report on Form 10-K for its 2019 fiscal year. If the Performance Measure is less than $20.9 million, none of the PSUs will vest. If the Performance Measure is greater than $20.9 million, a percentage of the PSUs, ranging from 33% to 100%, will vest in accordance with a vesting table. The vested amount increases by one percentage point for each level of the Performance Measure achieved, as specified in the vesting table. If the Performance Measure is greater than or equal to $38.4 million, all of the PSUs will vest. Vesting is also subject to continued employment of the reporting person through vesting date.</footnote>
        <footnote id="F3">The Performance Stock Units do not have an expiration date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jill Barnett, attorney-in-fact</signatureName>
        <signatureDate>2019-06-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
