<SEC-DOCUMENT>0000899243-21-040537.txt : 20211018
<SEC-HEADER>0000899243-21-040537.hdr.sgml : 20211018
<ACCEPTANCE-DATETIME>20211018205332
ACCESSION NUMBER:		0000899243-21-040537
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211008
FILED AS OF DATE:		20211018
DATE AS OF CHANGE:		20211018

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SOFTBANK GROUP CORP
		CENTRAL INDEX KEY:			0001065521

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39525
		FILM NUMBER:		211329425

	BUSINESS ADDRESS:	
		STREET 1:		1-7-1 KAIGAN
		STREET 2:		MINATO-KU
		CITY:			TOKYO
		STATE:			M0
		ZIP:			105-7537
		BUSINESS PHONE:		01181368892260

	MAIL ADDRESS:	
		STREET 1:		1-7-1 KAIGAN
		STREET 2:		MINATO-KU
		CITY:			TOKYO
		STATE:			M0
		ZIP:			105-7537

	FORMER NAME:	
		FORMER CONFORMED NAME:	SOFTBANK CORP
		DATE OF NAME CHANGE:	19980708

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ESS Tech, Inc.
		CENTRAL INDEX KEY:			0001819438
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		26440 SW PARKWAY AVE.
		STREET 2:		BLDG. 83
		CITY:			WILSONVILLE
		STATE:			OR
		ZIP:			97070
		BUSINESS PHONE:		(855) 423-9920

	MAIL ADDRESS:	
		STREET 1:		26440 SW PARKWAY AVE.
		STREET 2:		BLDG. 83
		CITY:			WILSONVILLE
		STATE:			OR
		ZIP:			97070

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACON S2 Acquisition Corp.
		DATE OF NAME CHANGE:	20200728
</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>2021-10-08</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001819438</issuerCik>
        <issuerName>ESS Tech, Inc.</issuerName>
        <issuerTradingSymbol>GWH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001065521</rptOwnerCik>
            <rptOwnerName>SOFTBANK GROUP CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1-7-1 KAIGAN</rptOwnerStreet1>
            <rptOwnerStreet2>MINATO-KU</rptOwnerStreet2>
            <rptOwnerCity>TOKYO</rptOwnerCity>
            <rptOwnerState>M0</rptOwnerState>
            <rptOwnerZipCode>105-7537</rptOwnerZipCode>
            <rptOwnerStateDescription>JAPAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31714972</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to an &quot;earnout&quot; provision of the Agreement and Plan of Merger, dated as of May 6, 2021 (the &quot;Merger Agreement&quot;), by and among ACON S2 Acquisition Corp, SCharge Merger Sub, Inc., and ESS Tech, Inc. (the &quot;Issuer&quot;), the reporting person is entitled to receive additional shares of common stock, for no additional consideration, if the volume weighted average price of the common stock over twenty trading days within any thirty trading day period exceeds certain thresholds (the &quot;Earnout Rights&quot;). Of these Earnout Rights, one half will be issued if the volume weighted average price of the common stock over twenty trading days within any thirty trading day period is greater than or equal to $12.50, and one half will be issued if the volume weighted average price of the common stock over twenty trading days within any thirty trading day period is greater than or equal to $15.00.</footnote>
        <footnote id="F2">These shares are held directly by SB Energy Global Holdings One Ltd. (&quot;Holdings One&quot;), a wholly owned subsidiary of SB Energy Global Holdings Limited, which is a wholly owned subsidiary of SoftBank Group Corp. (&quot;SoftBank&quot;). SoftBank may be deemed to have voting and dispositive power with respect to the shares held by Holdings One.</footnote>
    </footnotes>

    <remarks>Rich Hossfeld, an executive officer of Holdings One is a member of the Board of Directors of the Issuer. As a result the Reporting Person may be a director by deputization for Section 16 purposes. Mr. Hossfeld disclaims beneficial ownership of the shares of common stock reported in this filing, except to the extent of his pecuniary interest therein.</remarks>

    <ownerSignature>
        <signatureName>/s/ Natsuko Ohga, head of Corporate Legal Department of Softbank Group Corp.</signatureName>
        <signatureDate>2021-10-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
