<SEC-DOCUMENT>0001628280-25-015654-index.html : 20250331
<SEC-HEADER>0001628280-25-015654.hdr.sgml : 20250331
<ACCEPTANCE-DATETIME>20250331161318
ACCESSION NUMBER:		0001628280-25-015654
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20250331
DATE AS OF CHANGE:		20250331
EFFECTIVENESS DATE:		20250331

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ESS Tech, Inc.
		CENTRAL INDEX KEY:			0001819438
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				981550150
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-286259
		FILM NUMBER:		25793376

	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>S-8
<SEQUENCE>1
<FILENAME>esstechinc-sx82025evergreen.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: esstechinc-sx82025evergreen.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>2
<FILENAME>exhibit107-feetablesx82025.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
Document 2 - file: exhibit107-feetablesx82025.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>exhibit51legalopinions-820.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 3 - file: exhibit51legalopinions-820.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>exhibit231kpmgconsent.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: exhibit231kpmgconsent.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image_1a.jpg
<TEXT>
Document 5 - file: image_1a.jpg

</DOCUMENT>
</SEC-DOCUMENT>