<SEC-DOCUMENT>0001562180-25-002806.txt : 20250331
<SEC-HEADER>0001562180-25-002806.hdr.sgml : 20250331
<ACCEPTANCE-DATETIME>20250331173906
ACCESSION NUMBER:		0001562180-25-002806
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250331
FILED AS OF DATE:		20250331
DATE AS OF CHANGE:		20250331

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HEBERT CURTIS L JR
		CENTRAL INDEX KEY:			0001168534
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		ORGANIZATION NAME:           	01 Energy & Transportation
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41279
		FILM NUMBER:		25795376

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			5E Advanced Materials, Inc.
		CENTRAL INDEX KEY:			0001888654
		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				873426517
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		9329 MARIPOSA ROAD
		STREET 2:		SUITE 210
		CITY:			HESPERIA
		STATE:			CA
		ZIP:			92344
		BUSINESS PHONE:		442 292 2120

	MAIL ADDRESS:	
		STREET 1:		9329 MARIPOSA ROAD
		STREET 2:		SUITE 210
		CITY:			HESPERIA
		STATE:			CA
		ZIP:			92344
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-31</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001888654</issuerCik>
        <issuerName>5E Advanced Materials, Inc.</issuerName>
        <issuerTradingSymbol>FEAM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001168534</rptOwnerCik>
            <rptOwnerName>HEBERT CURTIS L JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9329 MARIPOSA ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 210</rptOwnerStreet2>
            <rptOwnerCity>HESPERIA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92344</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Unit</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-03-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>512.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>512.00</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>512.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each restricted stock unit (&quot;RSU&quot;) represents a contingent right to receive one share of 5E Advanced Materials, Inc. common stock.</footnote>
        <footnote id="F2">RSUs granted on March 31, 2025 pursuant to the Issuer's Amended and Restated 2022 Equity Compensation Plan. The RSUs vest on July 1, 2025, subject to the Reporting Person's continuing service on the Issuer's Board through the applicable vesting date. The RSUs have no expiration date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s / Joshua Malm, Attorney-in-Fact for Curtis L. Hebert, Jr.</signatureName>
        <signatureDate>2025-03-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
