<SEC-DOCUMENT>0001193125-21-330661.txt : 20211116
<SEC-HEADER>0001193125-21-330661.hdr.sgml : 20211116
<ACCEPTANCE-DATETIME>20211116070100
ACCESSION NUMBER:		0001193125-21-330661
CONFORMED SUBMISSION TYPE:	NT 10-Q
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211116
DATE AS OF CHANGE:		20211116
EFFECTIVENESS DATE:		20211116

FILER:

	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

	FILING VALUES:
		FORM TYPE:		NT 10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39525
		FILM NUMBER:		211414096

	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>NT 10-Q
<SEQUENCE>1
<FILENAME>d251002dnt10q.htm
<DESCRIPTION>NT 10-Q
<TEXT>
<HTML><HEAD>
<TITLE>NT 10-Q</TITLE>
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<TD VALIGN="top" COLSPAN="3" ALIGN="center" STYLE="BORDER-LEFT:1px solid #000000; BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt; padding-right:2pt"><FONT STYLE="white-space:nowrap">001-39525</FONT></TD></TR>
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<TD VALIGN="top" COLSPAN="3" ALIGN="center" STYLE="BORDER-LEFT:1px solid #000000; BORDER-RIGHT:1px solid #000000; padding-left:8pt; padding-right:2pt">CUSIP&nbsp;NUMBER</TD></TR>
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<TD VALIGN="top" COLSPAN="3" ALIGN="center" STYLE="BORDER-LEFT:1px solid #000000; BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt; padding-right:2pt">26916J106</TD></TR></TABLE></DIV>
<p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">12b-25</FONT> </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>NOTIFICATION
OF LATE FILING </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TD VALIGN="top" ALIGN="right"><I>(Check One)</I>&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">&#9744;&nbsp;&nbsp;Form&nbsp;10-K&nbsp;&nbsp;&nbsp;&nbsp;&#9744;&nbsp;&nbsp;Form&nbsp;
20-F&nbsp;&nbsp;&nbsp;&nbsp;&#9744;&nbsp;&nbsp;Form</FONT></FONT> <FONT STYLE="white-space:nowrap">11-K&nbsp;&nbsp;&nbsp;&nbsp;&#9746;&nbsp;&nbsp;Form</FONT> <FONT STYLE="white-space:nowrap">10-Q</FONT></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">&#9744;&nbsp;&nbsp;Form <FONT STYLE="white-space:nowrap">10-D&nbsp;&nbsp;&nbsp;&nbsp;&#9744;&nbsp;&nbsp;Form</FONT>
<FONT STYLE="white-space:nowrap">N-SAR&nbsp;&nbsp;&nbsp;&nbsp;&#9744;&nbsp;&nbsp;Form</FONT> <FONT STYLE="white-space:nowrap">N-CSR</FONT></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">For&nbsp;Period&nbsp;Ended: September 30, 2021</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;&nbsp;&nbsp;Transition Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;&nbsp;&nbsp;Transition Report on Form <FONT STYLE="white-space:nowrap">20-F</FONT></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="2"></TD>
<TD HEIGHT="2" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;&nbsp;&nbsp;Transition Report on Form <FONT STYLE="white-space:nowrap">11-K</FONT></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="2"></TD>
<TD HEIGHT="2" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;&nbsp;&nbsp;Transition Report on Form <FONT STYLE="white-space:nowrap">10-Q</FONT></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="2"></TD>
<TD HEIGHT="2" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;&nbsp;&nbsp;Transition Report on Form <FONT STYLE="white-space:nowrap">N-SAR</FONT></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">For the Transition Period Ended:</TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER:1px solid #000000; padding-left:8pt; padding-right:2pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>Read Instructions (on back page)
Before Preparing Form. Please Print or Type.</I></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Nothing in this form shall be construed to imply that the Commission has verified any
information contained herein.</B></P></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the notification relates to a portion of the filing checked above, identify the Item(s) to which the
notification relates: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART I &#151; REGISTRANT INFORMATION </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>ESS Tech, Inc. </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Full Name
of Registrant </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>ACON S2 Acquisition Corp. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Former Name if Applicable </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>26440
SW Parkway Ave., Bldg. 83 </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Address of Principal Executive Office <I>(Street and Number)</I> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Wilsonville, OR 97070 </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">City,
State and Zip Code </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART II &#151; RULES <FONT STYLE="white-space:nowrap">12b-25(b)</FONT> AND (c) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule <FONT
STYLE="white-space:nowrap">12b-25(b),</FONT> the following should be completed. (Check box if appropriate) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="middle" ROWSPAN="3" STYLE="BORDER-RIGHT:1px solid #000000; padding-left:8pt"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">&#9746;&nbsp;&nbsp;&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">(a)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">(b)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">The subject annual report, semi-annual report, transition report on Form <FONT STYLE="white-space:nowrap">10-K,</FONT> Form <FONT STYLE="white-space:nowrap">20-F,</FONT> Form <FONT STYLE="white-space:nowrap">11-K,</FONT> Form <FONT
STYLE="white-space:nowrap">N-SAR</FONT> or Form <FONT STYLE="white-space:nowrap">N-CSR,</FONT> or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition
report on Form <FONT STYLE="white-space:nowrap">10-Q</FONT> or subject distribution report on Form <FONT STYLE="white-space:nowrap">10-D,</FONT> or portion thereof will be filed on or before the fifth calendar day following the prescribed due date;
and</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">(c)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">The accountant&#146;s statement or other exhibit required by Rule <FONT STYLE="white-space:nowrap">12b-25(c)</FONT> has been attached if applicable.</TD></TR>
</TABLE> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART III &#151; NARRATIVE </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">State below in reasonable detail why Forms <FONT STYLE="white-space:nowrap">10-K,</FONT> <FONT STYLE="white-space:nowrap">20-F,</FONT> <FONT
STYLE="white-space:nowrap">11-K,</FONT> <FONT STYLE="white-space:nowrap">10-Q,</FONT> <FONT STYLE="white-space:nowrap">10-D,</FONT> <FONT STYLE="white-space:nowrap">N-SAR,</FONT> <FONT STYLE="white-space:nowrap">N-CSR,</FONT> or the transition
report or portion thereof, could not be filed within the prescribed time period. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ESS Tech, Inc. (&#147;ESS&#148; or the &#147;Company&#148;, f/k/a
ACON&nbsp;S2 Acquisition Corp.) has determined that it is unable, without unreasonable effort or expense, to file its Quarterly Report on Form&nbsp;10-Q for the fiscal quarter ended September&nbsp;30, 2021 (the &#147;Q3&nbsp;2021 <FONT
STYLE="white-space:nowrap">Form&nbsp;10-Q&#148;)</FONT> by the prescribed due date for the reasons described below. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">As a result of recent guidance to
Special Purpose Acquisition Companies by the U.S. Securities and Exchange Commission regarding redeemable equity instruments, the Company revisited its application of <FONT STYLE="white-space:nowrap">ASC&nbsp;480-10-S99</FONT> on its financial
statements. The Company had previously classified a portion of the Class A ordinary shares (the &#147;Class A Ordinary Shares&#148;) of ACON&nbsp;S2 Acquisition Corp, which consummated a business combination with the Company on October&nbsp;8, 2021,
in permanent equity. In consultation with the Company&#146;s management and independent registered public accounting firm, the Company&#146;s audit committee is currently evaluating the appropriate classification of all of the Class&nbsp;A Ordinary
Shares in accordance with <FONT STYLE="white-space:nowrap">ASC&nbsp;480-10-S99.</FONT> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Company is working diligently to complete the Q3&nbsp;2021
Form&nbsp;10-Q as soon as possible; however, given the scope of the process for determining the appropriate treatment of the redeemable equity instruments in accordance with ASC&nbsp;480-10-S99 and appropriately reporting such treatment in the
Q3&nbsp;2021 Form&nbsp;10-Q, the Company is unable to complete and file the Q3&nbsp;2021 Form&nbsp;10-Q by the required due date of November&nbsp;15, 2021 without unreasonable effort and expense. The Company does, however, expect to file such report
within five calendar days thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART IV &#151; OTHER INFORMATION </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top">(1)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="9">Name and telephone number of person to contact in regard to this notification</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-BOTTOM:1px solid #000000"><B>Amir&nbsp;Moftakhar</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-BOTTOM:1px solid #000000"><B>(503)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-BOTTOM:1px solid #000000"><B><FONT STYLE="white-space:nowrap">709-4726</FONT></B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">(Name)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">(Area&nbsp;Code)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">(Telephone&nbsp;Number)</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="10"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">(2)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="9">Have all other periodic reports required under Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934 or Section&nbsp;30 of the Investment Company Act of 1940 during the preceding 12 months or for such
shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s).&nbsp;&nbsp;&nbsp;&nbsp;&#9746;&nbsp;&nbsp;YES&nbsp;&nbsp;&nbsp;&nbsp;&#9744;&nbsp;&nbsp;NO</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="10"></TD></TR>
<TR STYLE="font-size:1px; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="9" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt">&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="10"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">(3)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="9">Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or
portion thereof?&nbsp;&nbsp;&nbsp;&nbsp;&#9744;&nbsp;&nbsp;YES&nbsp;&nbsp;&nbsp;&nbsp;&#9746;&nbsp;&nbsp;NO</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="10"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
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<TD VALIGN="bottom" COLSPAN="9">If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.</TD></TR>
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<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>ESS Tech, Inc. </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">(Name of
Registrant as Specified in Charter) </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized. </P>
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<TD VALIGN="top">Date: November 15, 2021</TD>
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<TD VALIGN="top" COLSPAN="3"><B>ESS Tech, Inc.</B></TD></TR>
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<TD VALIGN="top">By:</TD>
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<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Amir Moftakhar</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Name:</P></TD>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Amir Moftakhar</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Title:</P></TD>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Chief Financial Officer</P></TD></TR>
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