<SEC-DOCUMENT>0001209191-21-046636.txt : 20210713
<SEC-HEADER>0001209191-21-046636.hdr.sgml : 20210713
<ACCEPTANCE-DATETIME>20210713204212
ACCESSION NUMBER:		0001209191-21-046636
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210710
FILED AS OF DATE:		20210713
DATE AS OF CHANGE:		20210713

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Largey David
		CENTRAL INDEX KEY:			0001788867

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34198
		FILM NUMBER:		211089095

	MAIL ADDRESS:	
		STREET 1:		7301 OHMS LANE
		STREET 2:		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:		7301 OHMS LANE
		STREET 2:		SUITE 600
		CITY:			EDINA
		STATE:			MN
		ZIP:			55439
		BUSINESS PHONE:		952-820-2518

	MAIL ADDRESS:	
		STREET 1:		7301 OHMS LANE
		STREET 2:		SUITE 600
		CITY:			EDINA
		STATE:			MN
		ZIP:			55439

	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>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4 SUBMISSION
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        <issuerName>SunOpta Inc.</issuerName>
        <issuerTradingSymbol>STKL</issuerTradingSymbol>
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            <rptOwnerStreet2>SUITE 600</rptOwnerStreet2>
            <rptOwnerCity>EDINA</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55439</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
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            <officerTitle>Chief Quality Officer</officerTitle>
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            <transactionAmounts>
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                <transactionPricePerShare>
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            <expirationDate>
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                <value></value>
            </transactionTimeliness>
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                    <value>1011</value>
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    <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 line item reflects the deemed disposition of shares withheld by the Company to satisfy income tax withholding requirements in connection with the vesting of the PSUs.</footnote>
        <footnote id="F3">Each Restricted Stock Unit represents a contingent right to receive one share of STKL common stock.</footnote>
        <footnote id="F4">This line item reflects the deemed disposition of shares withheld by the Company to satisfy income tax withholding requirements in connection with the vesting of the RSUs.</footnote>
        <footnote id="F5">The reporting person was granted performance stock units (the &quot;Performance Units&quot;) on July 10, 2020.  The vesting of the Performance Units is subject to the satisfaction of certain fiscal year EBITDA achieved during the period commencing on the grant date and ending on December 31, 2022 (the &quot;Performance Period&quot;). For the EBITDA performance conditions, 1/3 of the Performance Units will vest upon the Company achieving annual adjusted EBITDA of $80,000,000, another 1/3 will vest upon the Company achieving annual adjusted EBITDA of $100,000,000, and the final 1/3 will vest upon the Company achieving annual adjusted EBITDA of $110,000,000 during the Performance Period, and subject to continued employment through the end of the fiscal year the EBITDA performance condition is achieved.</footnote>
        <footnote id="F6">The Performance Stock Units do not have an expiration date.</footnote>
        <footnote id="F7">The Restricted Stock Units vest in three equal annual installments beginning on July 10, 2021, subject to the continued employment of the reporting person through each such vesting date.</footnote>
        <footnote id="F8">The Restricted Stock Units do not have an expiration date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jill Barnett, attorney-in-fact</signatureName>
        <signatureDate>2021-07-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
