<SEC-DOCUMENT>0001209191-23-026773.txt : 20230502
<SEC-HEADER>0001209191-23-026773.hdr.sgml : 20230502
<ACCEPTANCE-DATETIME>20230502200409
ACCESSION NUMBER:		0001209191-23-026773
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230425
FILED AS OF DATE:		20230502
DATE AS OF CHANGE:		20230502

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			South32 Ltd
		CENTRAL INDEX KEY:			0001635752
		STATE OF INCORPORATION:			C3
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35447
		FILM NUMBER:		23881261

	BUSINESS ADDRESS:	
		STREET 1:		LEVEL 35 108 ST GEORGES TERRACE
		CITY:			PERTH WA
		STATE:			C3
		ZIP:			6000
		BUSINESS PHONE:		61893249000

	MAIL ADDRESS:	
		STREET 1:		LEVEL 35 108 ST GEORGES TERRACE
		CITY:			PERTH WA
		STATE:			C3
		ZIP:			6000

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			South32 International Investment Holdings Proprietary Ltd
		CENTRAL INDEX KEY:			0001726854
		STATE OF INCORPORATION:			C3

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35447
		FILM NUMBER:		23881260

	BUSINESS ADDRESS:	
		STREET 1:		LEVEL 35,  108 ST GEORGES TERRACE
		CITY:			PERTH
		STATE:			C3
		ZIP:			WA 6000
		BUSINESS PHONE:		61893249000

	MAIL ADDRESS:	
		STREET 1:		LEVEL 35,  108 ST GEORGES TERRACE
		CITY:			PERTH
		STATE:			C3
		ZIP:			WA 6000

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Trilogy Metals Inc.
		CENTRAL INDEX KEY:			0001543418
		STANDARD INDUSTRIAL CLASSIFICATION:	GOLD & SILVER ORES [1040]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		SUITE 1150, 609 GRANVILLE STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V7Y 1G5
		BUSINESS PHONE:		(604) 638-8088

	MAIL ADDRESS:	
		STREET 1:		SUITE 1150, 609 GRANVILLE STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V7Y 1G5

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NovaCopper Inc.
		DATE OF NAME CHANGE:	20120228
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0407</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-04-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001543418</issuerCik>
        <issuerName>Trilogy Metals Inc.</issuerName>
        <issuerTradingSymbol>TMQ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001635752</rptOwnerCik>
            <rptOwnerName>South32 Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>LEVEL 35</rptOwnerStreet1>
            <rptOwnerStreet2>108 ST GEORGES TERRACE</rptOwnerStreet2>
            <rptOwnerCity>PERTH</rptOwnerCity>
            <rptOwnerState>C3</rptOwnerState>
            <rptOwnerZipCode>WA 6000</rptOwnerZipCode>
            <rptOwnerStateDescription>AUSTRALIA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001726854</rptOwnerCik>
            <rptOwnerName>South32 International Investment Holdings Proprietary Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>LEVEL 35</rptOwnerStreet1>
            <rptOwnerStreet2>108 ST GEORGES TERRACE</rptOwnerStreet2>
            <rptOwnerCity>PERTH</rptOwnerCity>
            <rptOwnerState>C3</rptOwnerState>
            <rptOwnerZipCode>WA 6000</rptOwnerZipCode>
            <rptOwnerStateDescription>AUSTRALIA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-04-25</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2181818</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.55</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18595311</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By wholly-owned subsidiary</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The shares are owned directly by South32 International Investment Holdings Proprietary Limited, which is a wholly-owned subsidiary of South32 Limited. South32 Limited is an indirect beneficial owner of the reported securities.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Claire Tolcon, Company Secretary of South32 Limited</signatureName>
        <signatureDate>2023-05-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Li Ching Delaney, Company Secretary of South32 International Investment Holdings Proprietary Limited</signatureName>
        <signatureDate>2023-05-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
