<SEC-DOCUMENT>0001564590-21-047215.txt : 20210907
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<ACCEPTANCE-DATETIME>20210907163537
ACCESSION NUMBER:		0001564590-21-047215
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20210903
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210907
DATE AS OF CHANGE:		20210907

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KAISER ALUMINUM CORP
		CENTRAL INDEX KEY:			0000811596
		STANDARD INDUSTRIAL CLASSIFICATION:	ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
		IRS NUMBER:				943030279
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09447
		FILM NUMBER:		211239722

	BUSINESS ADDRESS:	
		STREET 1:		27422 PORTOLA PARKWAY, SUITE 200
		CITY:			FOOTHILL RANCH
		STATE:			CA
		ZIP:			92610-2831
		BUSINESS PHONE:		949-614-1740

	MAIL ADDRESS:	
		STREET 1:		27422 PORTOLA PARKWAY, SUITE 200
		CITY:			FOOTHILL RANCH
		STATE:			CA
		ZIP:			92610-2831

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KAISERTECH LTD
		DATE OF NAME CHANGE:	19901122
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<p style="border-bottom:Double 2.25pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;;font-size:2pt;">&#160;</p>
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<p style="text-align:center;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:14pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">FORM <ix:nonNumeric id="F_000000" name="dei:DocumentType" contextRef="C_0000811596_20210903_20210903">8-K</ix:nonNumeric></p>
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<p style="text-align:center;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF</p>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000013" name="dei:EntityAddressPostalZipCode" contextRef="C_0000811596_20210903_20210903">92610-2831</ix:nonNumeric></p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Zip Code)</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;;font-size:6pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000014" name="dei:CityAreaCode" contextRef="C_0000811596_20210903_20210903">(949)</ix:nonNumeric>&#160;<ix:nonNumeric id="F_000015" name="dei:LocalPhoneNumber" contextRef="C_0000811596_20210903_20210903">614-1740</ix:nonNumeric></p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Registrant's telephone number, including area code)</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;;font-size:6pt;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Not Applicable</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Former Name or Former Address, if Changed Since Last Report)</p>
<p style="text-align:center;border-bottom:Solid 1pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;margin-left:46.15%;margin-right:46.15%;text-indent:0%;font-size:6pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:9pt;">&#160;</p>
<div style="align:left;">
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Segoe UI Symbol;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000016" name="dei:WrittenCommunications" contextRef="C_0000811596_20210903_20210903" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></p></td>
<td valign="top" style="width:96%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425)</p></td>
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<tr>
<td valign="top" style="width:4%;">
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Segoe UI Symbol;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000017" name="dei:SolicitingMaterial" contextRef="C_0000811596_20210903_20210903" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></p></td>
<td valign="top" style="width:96%;">
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Soliciting material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</p></td>
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<td valign="top" style="width:4%;">
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Segoe UI Symbol;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000018" name="dei:PreCommencementTenderOffer" contextRef="C_0000811596_20210903_20210903" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></p></td>
<td valign="top" style="width:96%;">
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Pre-commencement communications pursuant to Rule&#160;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p></td>
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<tr>
<td valign="top" style="width:4%;">
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Segoe UI Symbol;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000019" name="dei:PreCommencementIssuerTenderOffer" contextRef="C_0000811596_20210903_20210903" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></p></td>
<td valign="top" style="width:96%;">
<p style="margin-top:6pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:6pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Securities registered pursuant to Section 12(b) of the Act:</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:9pt;">&#160;</p>
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<td valign="bottom" style="width:41.02%; border-bottom:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Title of each class</p></td>
<td valign="bottom" style="width:1.3%; border-bottom:solid 0.75pt transparent;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
<td valign="bottom" style="width:17.94%; border-bottom:solid 0.75pt #000000;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Trading</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Symbol(s)</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Name of each exchange on which registered</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000020" name="dei:Security12bTitle" contextRef="C_0000811596_20210903_20210903">Common Stock, par value $0.01 per share</ix:nonNumeric></p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000021" name="dei:TradingSymbol" contextRef="C_0000811596_20210903_20210903">KALU</ix:nonNumeric></p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><ix:nonNumeric id="F_000022" name="dei:SecurityExchangeName" contextRef="C_0000811596_20210903_20210903" format="ixt-sec:exchnameen">Nasdaq Global Select Market</ix:nonNumeric></p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:4pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).</p>
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<p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standard provided pursuant to Section 13(a) of the Exchange Act.&#160;<span style="font-family:Segoe UI Symbol;">&#9744;</span></p>
<p style="border-bottom:Double 2.25pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:6pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:6pt;">&#160;</p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Item 1.01.&#160; Entry into a Material Definitive Agreement.<span style="font-weight:normal;">&#160;</span></p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On&#160;September&#160;3, 2021, Kaiser Aluminum Corporation (the "Company") and the United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL-CIO, CLC (formerly known as the United Steelworkers of America, AFL-CIO, CLC) (the "USW") amended and restated the terms of the amended and restated director designation agreement dated&#160;December 12, 2019&#160;(the "Amendment").&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Prior to the entry of the Amendment, the USW had&#160;the right to designate for nomination the minimum number of candidates necessary to ensure that, assuming such candidates are elected by the Company&#8217;s stockholders, at least 40% of the members of the&#160;Company&#8217;s&#160;board of directors (the "Board") immediately following such election of directors who were designated by the USW, provided that the Company had&#160;the ability to increase the size&#160;of the Board from 10 to up to 12 members without increasing the number of candidates that the USW had&#160;the right to designate for nomination.&#160; The Amendment provides that the Company&#160;now&#160;has the ability to increase the size of the Board to 13 members&#160;without increasing the number of candidates that the USW has the right to designate for nomination.&#160;&#160;Furthermore,&#160;the Amendment provides that&#160;if&#160;the Company&#8217;s Board size is not reduced from 13 to 12 members immediately following the Company&#8217;s 2023 annual&#160;meeting of&#160;stockholders, the Company and the USW will revisit the size of the Board and the USW&#8217;s nomination right, and, absent a mutual agreement on or before the Company&#8217;s 2024 annual&#160;meeting of&#160;stockholders, the USW&#8217;s nomination right shall increase to 5 candidates until the size of the Board is reduced to not more than 12 members.&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The preceding description of Amendment is a summary and is qualified in its entirety by the Amendment, which is filed as Exhibit 10.1 hereto and is incorporated herein by reference.&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Item 5.02.&#160; Departure of Directors or Certain Officers&#59; Election of Directors&#59; Appointment of Certain Officers&#59; Compensatory Arrangements of Certain Officers.&#160;&#160;&#160;&#160;&#160;&#160;&#160;<span style="font-weight:normal;">&#160;</span></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On&#160;September&#160;3, 2021, as part of the Company&#8217;s continuing effort to refresh the Board&#160;and increase diversity,&#160;the Company&#160;increased the number of authorized members of&#160;the Board from 11 to 13&#160;members and appointed&#160;Michael&#160;C.&#160;Arnold and Kevin&#160;W.&#160;Williams to fill the vacancies&#160;on the Board resulting from the increase of authorized members of the Board.&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Mr. Arnold, 65, is&#160;retired&#160;President and Chief Executive Officer of Ryerson Inc., a processor and distributor of industrial metals,&#160;and has&#160;previously&#160;held various senior management positions with The Timken Company from 1979 to 2010,&#160;including Executive Vice President&#59; President, Bearings and Power Transmission Group&#59; President, Industrial Group&#59; Vice President, Bearings and Business Process Advancement&#59; Director, Bearings and Business Process Advancement&#59;&#160;and&#160;Director, Manufacturing and Technology, Europe, Africa and West Asia (Europe).&#160; Mr. Arnold has served on the board of directors of AGCO Corporation since 2013&#160;and has served as the lead independent director since January 2021.&#160;&#160;Mr.&#160;Arnold&#160;holds a Bachelor&#8217;s degree in&#160;mechanical engineering&#160;and a Master&#8217;s&#160;degree in&#160;sales and marketing&#160;from&#160;University of Akron.&#160;&#160;The Board appointed Mr. Arnold as a director because of his extensive manufacturing&#160;and&#160;distribution&#160;expertise in metals industries&#160;and public company board&#160;experience, as well as his mergers and acquisition and supply chain experience&#160;in metals industries.&#160;&#160;Mr. Arnold&#160;will serve as a Class III director with a&#160;term&#160;expiring&#160;at the&#160;Company&#8217;s&#160;2024 annual meeting of stockholders and&#160;will serve on the Board&#8217;s compensation committee.&#160;&#160;&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Mr. Williams,&#160;59, has served as President and Chief Executive Officer of GAA Manufacturing and Supply Chain Management, a third party logistics and supply chain management company&#160;and&#160;one of the country's largest African American-owned businesses, since August 2018.&#160; Mr. Williams&#160;previously served as President and Managing Director of General Motors of Canada Limited&#160;and Vice President and General Manager, Global Service and Parts Operations of General Motors Company.&#160;&#160;Mr.&#160;Williams also held several other senior global roles at GM including chairman, president and managing director of GM de Mexico, Central America and the Cayman Islands&#59; and global executive director of supplier quality and development for GM Worldwide and GM Europe among other assignments.&#160;&#160;Mr.&#160;Williams&#160;holds a Bachelor&#8217;s&#160;degree in&#160;business administration and management, general&#160;from&#160;Tennessee State&#160;University and a Master of&#160;Science degree in business&#160;administration and management, general from Central Michigan&#160;University.&#160;&#160;The Board appointed Mr. Williams as a director because of his extensive manufacturing, automotive and supplier quality and development expertise&#160;as well as experience in </p>
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<p style="margin-bottom:0pt;margin-top:0pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">labor relations.&#160;&#160;Mr. Williams will serve as a Class II director with a term expiring at the Company&#8217;s 2023 annual meeting of stockholders and will serve on the Board&#8217;s audit committee.&#160;&#160;&#160;&#160;&#160;&#160;&#160;</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</span></p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Messrs.&#160;Arnold and Williams will each&#160;receive the standard compensation provided to all of the Company&#8217;s non-employee directors. The standard compensation paid to non-employee directors includes an annual cash retainer, an annual grant of restricted stock, meeting fees and expense reimbursement.&#160;The&#160;annual cash retainer and annual grant of restricted stock for 2021 to 2022 for each of Messrs. Arnold and Williams&#160;will be prorated to reflect service on the Board of less than one full year prior to the next annual meeting of stockholders.&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">A copy of the press release announcing the election of&#160;Messrs. Arnold and Williams&#160;is attached&#160;hereto as Exhibit 99.1 and is incorporated herein by reference.</p>
<p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Item&#160;9.01. Financial Statements and Exhibits.</p>
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<p style="margin-top:6pt;margin-bottom:0pt;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(d)</span></p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Number</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Description</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="Background-color:#FFFFFF;"> 10.1</span></p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&#160;</p></td>
<td valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:90.86%; border-top:solid 0.75pt #000000;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="kalu-ex101_8.htm"><span style="Background-color:#FFFFFF;text-decoration:underline;">Amended and Restated&#160;Director Designation Agreement dated&#160;September 3, 2021.&#160;</span></a></p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;99.1</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="kalu-ex991_7.htm"><span style="text-decoration:underline;">Press release dated September 7, 2021.</span></a></p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;104</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Cover Page Interactive Data File (embedded within the Inline XBRL document).</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:5.24%;text-indent:-5.24%;font-family:Times New Roman;font-size:10pt;">&#160;</p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&#160;</p>
<p style="text-align:center;margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">SIGNATURES</p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:5.24%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&#160;</p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
<td colspan="2" valign="bottom" style="background-color:#FFFFFF;padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:49%;">
<p style="margin-top:2pt;margin-bottom:0pt;margin-left:0pt;;margin-right:0.43%;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">KAISER ALUMINUM CORPORATION</p>
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Registrant)</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">By:</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Cherrie I. Tsai</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
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<p style="margin-top:2pt;margin-bottom:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Cherrie I. Tsai</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Vice President, Deputy General Counsel and Corporate Secretary</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Date: September 7, 2021</p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:right;margin-bottom:0pt;margin-top:0pt;text-indent:0%;text-transform:none;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-style:normal;font-variant: normal;">Exhibit<font style="text-transform:uppercase;"> 10.1</font></p>
<p style="margin-top:12pt;text-align:center;margin-bottom:12pt;text-indent:0%;font-weight:normal;text-transform:uppercase;font-size:12pt;font-family:Times New Roman;font-style:normal;font-variant: normal;"><font style="text-decoration:underline;">AMENDED AND RESTATED DIRECTOR DESIGNATION AGREEMENT</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">This AMENDED AND RESTATED DIRECTOR DESIGNATION AGREEMENT (this &#8220;<font style="text-decoration:underline;">Agreement</font>&#8221;), executed this 3<sup style="font-size:85%;line-height:120%;vertical-align:top">rd</sup> day of September, 2021 to be effective as of the 3<sup style="font-size:85%;line-height:120%;vertical-align:top">rd</sup> day of September, 2021, amends and restates that certain Amended and Restated Director Designation Agreement dated as of December 12, 2019, is made by and between Kaiser Aluminum Corporation, a Delaware corporation (the &#8220;<font style="text-decoration:underline;">Company</font>&#8221;), and the United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL-CIO, CLC (formerly known as the United Steelworkers of America, AFL-CIO, CLC) (the &#8220;<font style="text-decoration:underline;">Union</font>&#8221;).</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:bold;text-transform:uppercase;font-size:12pt;font-family:Times New Roman;font-style:normal;font-variant: normal;">RECITALS</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, in February 2002, the Company, along with Kaiser Aluminum &amp; Chemical Corporation, a wholly owned subsidiary of the Company (&#8220;<font style="text-decoration:underline;">KACC</font>&#8221;), and certain of KACC&#8217;s wholly owned subsidiaries, filed for protection under chapter 11 of title 11 of the United States Code (the &#8220;<font style="text-decoration:underline;">Bankruptcy Code</font>&#8221;);</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, in connection with their reorganization under the Bankruptcy Code, the Company and KACC had negotiations with their key constituencies regarding the terms of their reorganization and, as part of such negotiations, KACC and the Union reached an agreement in principle with respect to certain modifications to certain labor agreements between KACC and the Union, the terms and conditions of which are reflected in the Final Company Proposal to the USWA under 11 U.S.C. &#167;1113 and &#167;1114, dated January 27, 2004 and approved by the United States Bankruptcy Court for the District of Delaware (the &#8220;<font style="text-decoration:underline;">Bankruptcy Court</font>&#8221;) in a final order dated March 22, 2004 (the &#8220;<font style="text-decoration:underline;">Union Settlement Agreement</font>&#8221;);</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, pursuant to the Union Settlement Agreement, all plans, funds and programs providing retiree benefits (as defined by Section 1114(a) of the Bankruptcy Code) and maintained or established by KACC prior to February 12, 2002 were to be terminated, and KACC and the Union agreed to establish a voluntary employee benefit association trust (&#8220;<font style="text-decoration:underline;">VEBA</font>&#8221;), with two trustees appointed by each of KACC and the Union, to provide, among other things, benefits for certain eligible retirees of KACC represented by the Union and other unions and their surviving spouses and eligible dependents, to which KACC agreed to contribute a portion of its equity upon KACC&#8217;s emergence from the protection of chapter 11 of the Bankruptcy Code;</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, pursuant to the Union Settlement Agreement, the Union was granted certain rights with respect to the composition of the board of directors of reorganized KACC and certain committees thereof;</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, under the Second Amended Joint Plan of Reorganization of the Company, KACC and Certain of Their Debtor Affiliates, as modified, filed pursuant to Section&#160;1121(a) of the Bankruptcy Code and confirmed by an order of the Bankruptcy Court entered on February&#160;6, 2006 which confirmation was affirmed by an order of the United States District Court for the District of Delaware entered on May&#160;11, 2006 (the &#8220;<font style="text-decoration:underline;">Plan</font>&#8221;), the Company (rather than KACC, as </p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="margin-bottom:12pt;margin-top:0pt;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">was contemplated by the Union Settlement Agreement) is the ultimate parent company in the reorganization of the Company, KACC and certain of their debtor affiliates;</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, pursuant to the Plan, the Company contributed, among other things, 11,439,900 shares of the common stock, par value $0.01 per share, of the Company (&#8220;<font style="text-decoration:underline;">Common Stock</font>&#8221;) to the VEBA, representing 57.2% of the issued and outstanding shares of the Common Stock as of the effective date of the Plan (the &#8220;<font style="text-decoration:underline;">Effective Date</font>&#8221;);</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, pursuant to the Union Settlement Agreement and the Plan, (a)&#160;the number of directors comprising the board of directors of the Company (the &#8220;<font style="text-decoration:underline;">Board</font>&#8221;) as of the Effective Date was fixed at 10 and (b)&#160;the Union designated four individuals to serve on the Board commencing as of the Effective Date (the &#8220;<font style="text-decoration:underline;">Initial Union Directors</font>&#8221;);</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, pursuant to the Plan, the Company adopted an amended and restated certificate of incorporation (as adopted and as amended from time to time, the &#8220;<font style="text-decoration:underline;">Charter</font>&#8221;) and amended and restated bylaws (as adopted and as amended from time to time, the &#8220;<font style="text-decoration:underline;">Bylaws</font>&#8221;) which provide, among other things, that (a) stockholders may elect directors at, and only at, an annual meeting of stockholders and nominations of persons for election as directors may be made only at an annual meeting of stockholders and may be made by or at the direction of the Board or a committee thereof or by any stockholder that is a stockholder of record at the time it gives notice of such nomination, who is entitled to vote for the election of directors at such annual meeting, and who complies with the procedures with respect to the nomination of directors set forth in the Bylaws, (b) vacancies on the Board will be filled solely by the remaining directors, (c) any newly created directorship will be filled solely by the directors then in office, and (d) the Board is entitled to designate committees and select the members thereof;</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, on or promptly after the Effective Date, the Board adopted corporate governance guidelines addressing, among other things, the selection of directors, the composition of the Board and the creation and operation of Board committees (as so adopted, and as amended from time to time by the Board in good faith and to the extent either required by applicable law or Applicable Listing Requirements (as defined below) or consistent with recognized corporate governance best practices among U.S. corporations having publicly-held equity securities that are traded or quoted on a national securities exchange or association or quotation system, the &#8220;<font style="text-decoration:underline;">Corporate Governance Guidelines</font>&#8221;);</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, on or promptly after the Effective Date, the Board established a Nominating and Corporate Governance Committee (the &#8220;<font style="text-decoration:underline;">Nominating Committee</font>&#8221;) for the purposes of (a) establishing criteria to be utilized by it in assessing whether a candidate for a position on the Board has appropriate skills and experience, (b) identifying individuals qualified to become members of the Board, including without limitation evaluating candidates submitted to the Company by its stockholders, (c) recommending candidates to fill vacancies and newly-created positions on the Board, (d) recommending director nominees for the election by stockholders at the annual meetings of stockholders, and (e) developing and recommending to the Board corporate governance principles applicable to the Company;</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, promptly after its formation, the Nominating Committee&nbsp;&nbsp;adopted certain policies establishing criteria to be utilized by it in assessing whether a director candidate has </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">2</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="margin-bottom:12pt;margin-top:0pt;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">appropriate skills and experience, which policies are applicable to all director candidates including any candidate designated by the Union in accordance with this Agreement (as so adopted, and as amended from time to time by the Nominating Committee in good faith and to the extent either required by applicable law or Applicable Listing Requirements or consistent with recognized corporate governance best practices among U.S. corporations having publicly-held equity securities that are traded or quoted on a national securities exchange or association or quotation system, the &#8220;</font><font style="text-decoration:underline;">Director Candidate Policies</font><font style="font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#8221;);</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, in addition to establishing the Nominating Committee, the Board established an Executive Committee (the &#8220;<font style="text-decoration:underline;">Executive Committee</font>&#8221;) and an Audit Committee (the &#8220;<font style="text-decoration:underline;">Audit Committee</font>&#8221;), in each case on or promptly after the Effective Date; and</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">WHEREAS, the Company and the Union desire to definitively document their understanding with respect to the continuing right of the Union to nominate individuals to serve on the Board, which understanding is predicated in part on the foregoing description of the Charter and Bylaws and the various actions taken by the Board and the Nominating Committee described above.</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:bold;text-transform:uppercase;font-size:12pt;font-family:Times New Roman;font-style:normal;font-variant: normal;">AGREEMENT</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">NOW, THEREFORE, in consideration of the mutual covenants contained herein, the parties hereto agree as follows:</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">Article I.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Preliminary Acknowledgement</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Each of the Company and the Union acknowledge that each director of the Company owes his or her fiduciary duties to the Company and all of its stockholders.</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">Article II.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Right of Union to Designate Directors</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">2.1</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">General</font><font style="color:#000000;">.&nbsp;&nbsp;The Union shall at all times prior to the termination of this Agreement pursuant to </font><font style="text-decoration:underline;color:#000000;">Article&#160;VI</font><font style="color:#000000;"> hereof have the right, subject in all cases to the procedures set forth in this </font><font style="text-decoration:underline;color:#000000;">Article&#160;II</font><font style="color:#000000;"> and the exercise by the directors of the Company of their fiduciary duties, to designate individuals to serve on the Board, and this Agreement sets forth the exclusive rights of the Union with respect thereto.&nbsp;&nbsp;For purposes of this Agreement, the term &#8220;</font><font style="text-decoration:underline;color:#000000;">Union Director</font><font style="color:#000000;">&#8221; means individuals serving on the Board that have been designated by the Union in accordance with the procedures set forth in this Agreement.</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">2.2</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Election at Annual Meetings of Stockholders</font><font style="color:#000000;">.&nbsp;&nbsp;In connection with each annual meeting of the Company&#8217;s stockholders, the Union shall have the right to designate as candidates to be submitted to stockholders of the Company for election at such annual meeting that minimum number of candidates necessary to ensure that, assuming (x)&#160;such candidates are included in the slate of director candidates recommended by the Board in the Company&#8217;s proxy statement relating to such annual meeting and (y)&#160;the stockholders of the Company elect each candidate so included, at least 40% of the members of the Board immediately following such election are Union Directors subject to the proviso set forth in subsection (e) below, all in accordance with the following procedures (subject to Section&#160;2.4):</font></p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">3</a></p>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(a)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="text-decoration:none;Background-color:#auto;"></font><font style="color:#000000;"></font><font style="color:#000000;">The Union shall timely deliver to the Nominating Committee a written notice (an &#8220;</font><font style="text-decoration:underline;color:#000000;">Annual Meeting Candidate Notice</font><font style="color:#000000;">&#8221;) specifying, with respect to each candidate designated by the Union, the following information (the &#8220;</font><font style="text-decoration:underline;color:#000000;">Required Information</font><font style="color:#000000;">&#8221;):&nbsp;&nbsp;(i)&#160;his or her name, age, business and residential address and principal occupation or employment; (ii)&#160;the number of shares of the Common Stock beneficially owned by him or her; (iii)&#160;a resume or similar document detailing his or her personal and professional experiences and accomplishments; and (iv)&#160;all other information relating to the candidate that would be required to be disclosed in a proxy statement or other filing made in connection with the solicitation of proxies for the election of directors pursuant to (A)&#160;the Securities Exchange Act of 1934, as amended (the &#8220;</font><font style="text-decoration:underline;color:#000000;">Exchange Act</font><font style="color:#000000;">&#8221;), (B)&#160;the rules of the Securities and Exchange Commission (the &#8220;</font><font style="text-decoration:underline;color:#000000;">SEC</font><font style="color:#000000;">&#8221;), or (C)&#160;the Marketplace Rules or other applicable criteria of the National Association of Securities Dealers, Inc. or, if securities of the Company are then principally traded or quoted on a national securities exchange or association or quotation system other than The Nasdaq Stock Market, Inc., such national securities exchange or association or quotation system (the &#8220;</font><font style="text-decoration:underline;color:#000000;">Applicable Listing Requirements</font><font style="color:#000000;">&#8221;); </font><font style="text-decoration:underline;color:#000000;">provided</font><font style="color:#000000;">, </font><font style="text-decoration:underline;color:#000000;">however</font><font style="color:#000000;">, that, if a Union Director's term on the Board expires at the related annual meeting of stockholders and the Union desires to designate such Union Director as a candidate for re-election at such annual meeting, the Annual Meeting Candidate Notice need only so indicate and include the name of such Union Director.&nbsp;&nbsp;In addition, such Annual Meeting Candidate Notice must be accompanied by the written consent of each director candidate named therein to serve as a member of the Board and any committee of the Board to which he or she may be assigned to serve if elected.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(b)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">Where the date of the Company&#8217;s annual meeting of stockholders does not change by more than 30 calendar days from the date of the previous year&#8217;s annual meeting, the Annual Meeting Candidate Notice shall be timely if, and only if, it is received by the Nominating Committee not less than 120, nor more than 150, calendar days before the anniversary of the date that the Company&#8217;s proxy statement was first mailed to stockholders in connection with its previous year&#8217;s annual meeting.&nbsp;&nbsp;Where there was no annual meeting of stockholders in the previous year or where the date of the Company&#8217;s annual meeting of stockholders changes by more than 30 calendar days from the date of the previous year&#8217;s annual meeting, the Annual Meeting Candidate Notice shall be timely if, and only if, it is received by the Nominating Committee no later than the close of business on the 10th calendar day following the first day on which the date of the upcoming annual meeting is publicly disclosed in a press release reported by the Dow Jones News Service, Associated Press or comparable national news service or in a document filed by the Company with the SEC pursuant to the Exchange Act or furnished by the Company to stockholders.&nbsp;&nbsp;The Company shall, as promptly as practicable after any formal action by the Board to fix the date of the annual meeting of stockholders next following such action, deliver to the Union a written notice setting forth the date fixed for such annual meeting and identifying any Union Directors whose terms are expiring at such annual meeting.</font></p></td></tr></table></div>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">4</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(c)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="text-decoration:none;Background-color:#auto;"></font><font style="color:#000000;"></font><font style="color:#000000;">The Nominating Committee shall evaluate each director candidate identified in the Annual Meeting Candidate Notice and determine whether such candidate satisfies the qualifications contemplated by </font><font style="text-decoration:underline;color:#000000;">Article&#160;IV</font><font style="color:#000000;"> hereof (with such determination to be made in good faith and not to be unreasonably made, withheld or delayed).&nbsp;&nbsp;If the Nominating Committee so determines that such candidate satisfies such qualifications, then, unless otherwise required by its fiduciary duties (as determined in good faith by the Nominating Committee after consultation with legal counsel), the Nominating Committee shall recommend such director candidate to the Board for inclusion in the slate of directors recommended by the Board in the Company's proxy statement relating to the annual meeting.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(d)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">The Board shall, unless otherwise required by its fiduciary duties (as determined in good faith by the Board after consultation with legal counsel), accept the recommendation of the Nominating Committee with respect to each director candidate identified in the Annual Meeting Candidate Notice and direct that such director candidate be included in the slate of directors recommended by the Board in the Company&#8217;s proxy statement relating to the annual meeting.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(e)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">Notwithstanding any other provision in this Agreement to the contrary, the Company shall have the right to increase the size of the board from 10 to 13 members until such time as the size of the board is reduced to not more than 12 without increasing the Union&#8217;s nominating rights set forth above; provided, however that if the Company has not reduced the size of the board from 13 to 12 by no later than immediately following the annual meeting of the Company&#8217;s stockholders in 2023, the Company and the Union agree to revisit the size of the board and the Union&#8217;s nomination rights and, absent agreement on or before the annual meeting of the Company&#8217;s stockholders in 2024, the Union&#8217;s nomination right shall increase to 5 until the size of the board is reduced to not more than 12.&nbsp;&nbsp;For the avoidance of doubt, except as set forth in this Section 2.2(e), the Union&#8217;s nomination rights set forth above will remain unchanged if the size of the Board is 10 or less or greater than 12.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(f)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">The Company and the Union shall meet not less than annually to discuss (i) the Company&#8217;s most recent assessment of strategic board skills, experience, attributes of all Directors, (ii) desired strategic board skills, experience, attributes and priorities in the context of anticipated vacancies and upcoming elections and (iii) each Union nominated Director and contemplated future Union nominees in light of these considerations.&nbsp;&nbsp;Notwithstanding any other provision in this Agreement to the contrary, the Union&nbsp;&nbsp;(i) shall reasonably bear in mind the Company&#8217;s assessment and desired strategic board skills, experience, attributes and priorities when nominating a candidate and (ii) shall not renominate any Union nominated Director without the prior approval of the Company.</font></p></td></tr></table></div>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">2.3</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Vacancies and Newly Created Directorships</font><font style="color:#000000;">.&nbsp;&nbsp;In the event of (x)&#160;a vacancy on the Board resulting from the death, resignation, disqualification or removal of a Union Director (a &#8220;</font><font style="text-decoration:underline;color:#000000;">Vacancy</font><font style="color:#000000;">&#8221;) or (y)&#160;newly created directorships resulting from an increase in the number of directors of the Company (&#8220;</font><font style="text-decoration:underline;color:#000000;">Newly Created Directorships</font><font style="color:#000000;">&#8221;), the Union shall have the right to </font></p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">5</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="color:#000000;">designate (i)&#160;in the case of a Vacancy, the individual to fill such Vacancy and (ii)&#160;in the case of Newly Created Directorships, the minimum number of individuals to fill such Newly Created Directorships necessary to ensure that at least 40% of the members of the Board immediately following the filling of such Newly Created Directorships are Union Directors, all in accordance with the following procedures (subject to Section&#160;2.4):</font></p>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(a)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">The Union shall deliver to the Nominating Committee a written notice (the &#8220;</font><font style="text-decoration:underline;color:#000000;">Candidate Notice</font><font style="color:#000000;">&#8221;) specifying, with respect to each candidate designated to fill the Vacancy or Newly Created Directorships, as applicable, the Required Information.&nbsp;&nbsp;Such Candidate Notice must be accompanied by the written consent of each director candidate named therein to serve as a member of the Board and any committee of the Board to which he or she may be assigned to serve if elected.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(b)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">The Nominating Committee shall evaluate each director candidate identified in the Candidate Notice and determine whether such candidate satisfies the qualifications contemplated by </font><font style="text-decoration:underline;color:#000000;">Article&#160;IV</font><font style="color:#000000;"> hereof (with such determination to be made in good faith and not to be unreasonably made, withheld or delayed).&nbsp;&nbsp;If the Nominating Committee so determines that such candidate satisfies such qualifications, then, unless otherwise required by its fiduciary duties (as determined in good faith by the Nominating Committee after consultation with legal counsel), the Nominating Committee shall recommend to the Board that it fill the Vacancy or Newly Created Directorship, as applicable, with such candidate.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(c)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">The Board shall, unless otherwise required by its fiduciary duties (as determined in good faith by the Board after consultation with legal counsel), accept the recommendation of the Nominating Committee with respect to the director candidate identified in the Candidate Notice and fill the Vacancy or Newly Created Directorship, as applicable, with such candidate.</font></p></td></tr></table></div>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(d)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">Notwithstanding any other provision in this Agreement to the contrary, when nominating a candidate, the Union shall reasonably bear in mind the Company&#8217;s most recent assessment and the strategic board skills, experience, attributes and priorities identified by the Company pursuant to the terms of Section 2.2(f) herein as priorities for all Board nominees and Directors.</font></p></td></tr></table></div>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">2.4</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Modifications to Procedures</font><font style="color:#000000;">.&nbsp;&nbsp;In the event that the procedures set forth in Section&#160;2.2 or Section&#160;2.3 are no longer consistent with (a)&#160;applicable law, including without limitation the rules of the SEC, or Applicable Listing Requirements, (b)&#160;the Charter as a result of any amendment thereto, or (c)&#160;the Bylaws as a result of (i)&#160;any amendment thereto adopted by the stockholders of the Company or (ii)&#160;any amendment thereto adopted by the Board but not stockholders in order to reflect changes in (A)&#160;applicable law, including without limitation the rules of the SEC, or (B)&#160;Applicable Listing Requirements, then the Company and the Union will negotiate in good faith to modify the procedures set forth in Section&#160;2.2 or Section&#160;2.3, as applicable, so as to effect the original intent of the parties as closely as possible in an acceptable manner to permit the Union to exercise its rights under Section&#160;2.1.</font></p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">6</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="text-decoration:none;Background-color:#auto;">Article III.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Union Directors to Serve on Board Committees</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">So long as the Board maintains any of the following committees, each such committee shall, unless otherwise required by the Board&#8217;s fiduciary duties (as determined in good faith by the Board after consultation with legal counsel), include at least one Union Director (provided at least one Union Director is qualified to serve thereon as determined by the Board, with such determination to be made in good faith and not to be unreasonably made, withheld or delayed):&nbsp;&nbsp;(a)&#160;Audit Committee; (b)&#160;Executive Committee; and (c)&#160;Nominating Committee.</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">Article IV.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Qualifications of Union Directors</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Each individual designated by the Union pursuant to <font style="text-decoration:underline;">Article&#160;II</font> hereof to serve as a director of the Company must satisfy (a)&#160;the applicable independence criteria contained in the Applicable Listing Requirements, (b)&#160;the qualifications to serve as a director of the Company as set forth in the Corporate Governance Guidelines and the Director Candidates Policies, and (c)&#160;any other qualifications to serve as a director of the Company imposed by applicable law, including without limitation the rules of the SEC (in each case as such criteria and qualifications shall be interpreted by the Nominating Committee reasonably and in good faith).&nbsp;&nbsp;In addition, no such individual may be at the time of his or her designation by the Union to serve as a director of the Company or his or her election as a Union Director, and no such individual may become while serving as a Union Director, an officer, employee, director or member of the Union or any of its locals or affiliated organizations (any such officer, employee, director or member, a &#8220;<font style="text-decoration:underline;">Union Associate</font>&#8221;).&nbsp;&nbsp;The Company and the Union agree and acknowledge that an individual shall not fail to satisfy the criteria and qualifications set forth in the first sentence of this <font style="text-decoration:underline;">Article&#160;IV</font> solely because such individual was a Union Associate prior to the time of his or her designation by the Union to serve as a director of the Company; it being understood that unusual facts and circumstances concerning a particular Union Associate could dictate otherwise.</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">Article V.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Independence of Board</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">A majority of the members of the Board shall satisfy the independence criteria contained in the Applicable Listing Requirements, as such requirements shall be interpreted by the Board reasonably and in good faith.</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">Article VI.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Termination</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">This Agreement shall terminate in its entirety, and the Union shall have no further rights hereunder, on December&#160;31, 2025, unless the Company and the Union shall otherwise agree in writing.&nbsp;&nbsp;Upon the termination of this Agreement, the Union shall cause each Union Director to submit his or her resignation to the Board, which submission the Board may accept or reject in its discretion.</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">Article VII.</font><font style="font-weight:bold;margin-left:36pt;color:#000000;"></font><font style="font-weight:bold;color:#000000;">Miscellaneous</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.1</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Notices</font><font style="color:#000000;">.&nbsp;&nbsp;All notices, requests, claims, demands and other communications hereunder shall be in writing and shall be given or made by delivery in person, by overnight courier, by facsimile transmission, by electronic transmission or by registered or certified mail </font></p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">7</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="color:#000000;">(postage prepaid, return receipt requested) to the respective parties at the following addresses (or at such other address for a party specified in a notice given in accordance with this </font><font style="text-decoration:underline;color:#000000;">Section&#160;7.1</font><font style="color:#000000;">):</font></p>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(a)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">If to the Company:</font></p></td></tr></table></div>
<p style="margin-bottom:12pt;margin-top:0pt;margin-left:23.08%;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Kaiser Aluminum Corporation<br />27422 Portola Parkway, Suite 200<font style="font-weight:bold;"><br /></font>Foothill Ranch, California 92610<font style="font-weight:bold;"><br /></font>Facsimile:&nbsp;&nbsp;949-614-1930<br />Attention:&nbsp;&nbsp;Corporate Secretary<br />E-mail:&nbsp;&nbsp;cherrie.tsai@kaiseraluminum.com</p>
<p style="margin-bottom:12pt;margin-top:0pt;margin-left:23.08%;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">with a copy to:<br /><br />Kaiser Aluminum Corporation<br />27422 Portola Parkway, Suite 200<font style="font-weight:bold;"><br /></font>Foothill Ranch, California 92610<font style="font-weight:bold;"><br /></font>Facsimile:&nbsp;&nbsp;949-614-1930<br />Attention:&nbsp;&nbsp;EVP &#8211; Chief Administrative Office and General Counsel<br />E-mail:&nbsp;&nbsp;john.donnan@kaiseraluminum.com</p>
<p style="margin-bottom:12pt;margin-top:0pt;margin-left:23.08%;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">with a copy to:<br /><br />Jones Day<br />2727 N. Harwood Street<br />Dallas, Texas 75223<br />Facsimile:&nbsp;&nbsp;214-969-5100<br />Attention:&nbsp;&nbsp;Troy B. Lewis, Esq.<br />E-mail:&nbsp;&nbsp;tblewis@jonesday.com</p>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;">&nbsp;</p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="font-weight:normal;font-style:normal;text-decoration:none;Background-color:#auto;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;">(b)</font></p></td>
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<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;color:#auto;text-transform:none;font-variant: normal;letter-spacing:0pt;font-family:Times New Roman;font-size:12pt;"><font style="Background-color:#auto;text-decoration:none;"></font><font style="color:#000000;">If to the Union:</font></p></td></tr></table></div>
<p style="margin-bottom:12pt;margin-top:0pt;margin-left:23.08%;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL-CIO, CLC<br />60 Boulevard of the Allies, Suite 807<br />Pittsburgh, Pennsylvania 15222<br />Facsimile:&nbsp;&nbsp;412-562-2429<br />Attention:&nbsp;&nbsp;General Counsel<br />E-mail:&nbsp;&nbsp;djury@usw.org</p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">8</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:23.08%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">with a copy to:</font></p>
<p style="margin-bottom:12pt;margin-top:0pt;margin-left:23.08%;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL-CIO, CLC<br />International President<br />60&nbsp;&nbsp;Boulevard of the Allies, 12<sup style="font-size:85%;line-height:120%;vertical-align:top">th</sup> Floor<br />Pittsburgh, Pennsylvania 15222<br />Facsimile:&nbsp;&nbsp;412-562-2429<font style="text-decoration:underline;"><br /></font>Attention:&nbsp;&nbsp;Thomas M. Conway<font style="text-decoration:underline;"><br /></font>E-mail:&nbsp;&nbsp;tconway@usw.org</p>
<p style="margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">All such notices and communications shall be deemed to have been delivered or given upon receipt, if delivered personally, by electronic transmission or by overnight courier; when receipt is acknowledged, if sent by facsimile transmission and three Business Days after being deposited in the mail, if mailed.</p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.2</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Assignment</font><font style="color:#000000;">.&nbsp;&nbsp;Neither of the parties to this Agreement shall assign or delegate any of their respective rights or obligations under this Agreement without the prior written consent of the other party hereto.</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.3</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">No Third-Party Beneficiaries</font><font style="color:#000000;">.&nbsp;&nbsp;Except as expressly set forth herein, this Agreement shall be binding upon and inure solely to the benefit of the parties hereto and their respective successors and permitted assigns and nothing herein, express or implied, is intended to or shall confer upon any other person any legal or equitable right, benefit or remedy of any nature whatsoever under or by reason of this Agreement.</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.4</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Entire Agreement</font><font style="color:#000000;">.&nbsp;&nbsp;This Agreement constitutes the entire agreement of the parties hereto with respect to the subject matter hereof and supersedes all prior agreements and undertakings, both written and oral, between the parties with respect to the subject matter hereof.</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.5</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Amendment and Waiver</font><font style="color:#000000;">.&nbsp;&nbsp;This Agreement may not be amended or modified or any provision hereof waived except by an instrument in writing signed by both of the parties to this Agreement.</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.6</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Counterparts</font><font style="color:#000000;">.&nbsp;&nbsp;This Agreement may be executed by facsimile signature and in any number of counterparts, each such counterpart to be deemed an original and all such counterparts, taken together, to constitute one instrument.</font></p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="Background-color:#auto;text-decoration:none;">7.7</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Severability</font><font style="color:#000000;">.&nbsp;&nbsp;If any term or other provision of this Agreement is invalid, illegal or unenforceable under any law or public policy, all other terms and provisions of this Agreement shall nevertheless remain in full force and effect.&nbsp;&nbsp;Upon a determination that any term or other provision is invalid, illegal or unenforceable, the parties hereto shall negotiate in good faith to replace the invalid, illegal or unenforceable provisions with valid, legal and enforceable provisions the effect of which comes as close as possible to that of the invalid, illegal or unenforceable provisions.</font></p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">9</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:left;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-weight:normal;font-style:normal;color:#auto;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;letter-spacing:0pt;"><font style="text-decoration:none;Background-color:#auto;">7.8</font><font style="margin-left:36pt;color:#000000;"></font><font style="text-decoration:underline;color:#000000;">Governing Law</font><font style="color:#000000;">.&nbsp;&nbsp;This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware, without giving effect to the principles of conflict of laws thereof.</font></p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">[REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]</p>
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<p style="margin-bottom:12pt;margin-top:0pt;margin-left:15.38%;text-indent:-7.69%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">10</a></p>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:7.69%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">IN WITNESS WHEREOF, this Agreement has been duly executed and delivered by the duly authorized officers of each of the Company and the Union as of the date first above written.</p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ John M. Donnan</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">John M. Donnan, EVP, Chief Administrative Officer and General Counsel</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;text-transform:uppercase;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;font-variant: normal;">UNITED STEEL, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial AND Service Workers International Union<font style="text-transform:none;">, AFL-CIO, CLC</font></p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">By:</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Thomas M. Conway</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">John M. Donnan, EVP, Chief Thomas M. Conway, International President</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:center;margin-top:12pt;line-height:10pt;margin-bottom:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">[Signature Page to Director Designation Agreement]</p></body>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>kalu-ex991_7.htm
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><img src="gmqej2frgadw000001.jpg" title="" alt="" style="width:144px;height:46px;"><font style="color:#000000;margin-left:36pt;"></font>&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">FOR IMMEDIATE RELEASE<font style="margin-left:36pt;"></font></p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;;font-size:14pt;">&nbsp;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;;font-size:14pt;">&nbsp;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:14pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Kaiser Aluminum Corporation Announces Appointment of <br />Michael C. Arnold and Kevin W. Williams to its Board of Directors </p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">FOOTHILL RANCH, Calif. &#8211; <font style="color:#000000;">September 7</font>, 2021 &#8211; Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has appointed Michael C. Arnold and Kevin W. Williams to serve as independent directors. </p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Mr. Arnold was the President and Chief Executive Officer of Ryerson Inc., a metal processor and distributor, until he retired in 2015, and Mr. Williams serves as President and Chief Executive Officer of GAA Manufacturing and Supply Chain Management, a third party logistics and supply chain management company, and one of the country&#8217;s largest African American owned businesses.</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#8220;As highly respected leaders with a deep understanding of manufacturing and supply chain management, we are excited to have Mike and Kevin join the board,&#8221; said Jack A. Hockema, Executive Chairman. &#8220;Mike brings extensive manufacturing and supply chain expertise in the metals industry in addition to public company board expertise, presently serving as lead independent director of AGCO Corporation. Kevin also brings extensive experience in manufacturing and supply chain expertise across Kaiser&#8217;s served markets with deep experience in the automotive industry. Both Mike and Kevin&#8217;s experience, perspectives and insight will be valuable additions to our board.&#8221; </p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">About Mr. Michael C. Arnold</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Prior to joining Ryerson Inc., Mr. Arnold held various senior management positions with The Timken Company from 1979 to 2010, including Executive Vice President; President, Bearings and Power Transmission Group; President, Industrial Group; Vice President, Bearings and Business Process Advancement; Director, Bearings and Business Process Advancement; and Director, Manufacturing and Technology, Europe, Africa and West Asia (Europe).&nbsp;&nbsp;Mr. Arnold holds a Bachelor&#8217;s degree in mechanical engineering and a Master&#8217;s degree in sales and marketing from University of Akron.&nbsp;&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">About Mr. Kevin W. Williams</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Prior to joining GAA Manufacturing and Supply Chain Management, Mr. Williams served as President and Managing Director of General Motors of Canada Limited and Vice President and General Manager, Global Service and Parts Operations of General Motors Company.&nbsp;&nbsp;Mr. Williams also held several other senior global roles at GM including chairman, president and managing director of GM de Mexico, Central America and the Cayman Islands; and global executive director of supplier quality and development for GM Worldwide and GM Europe among other assignments.&nbsp;&nbsp;Mr. Williams holds a Bachelor&#8217;s degree in business administration and management, general from Tennessee State University and a Master of Science degree in business administration and management, general from Central Michigan University.&nbsp;&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:8pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><br /></p>
<hr style="page-break-after:always;width:100%;">
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-style:italic;font-size:11pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">Company Description</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Kaiser Aluminum Corporation, headquartered in Foothill Ranch, Calif., is a leading producer of semi-fabricated specialty<font style="color:#FF0000;"> </font>aluminum products, serving customers worldwide with highly engineered solutions for aerospace and high-strength, packaging, general engineering, custom automotive and other industrial applications. The Company&#8217;s North American facilities produce value-added plate, sheet, coil, extrusions, rod, bar, tube and wire products, adhering to traditions of quality, innovation and service that have been key components of its culture since the Company was founded in 1946. The Company&#8217;s stock is included in the Russell 2000&#174; index and the S&amp;P Small Cap 600&#174; index. </p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-style:italic;font-size:11pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">Available Information</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">For more information, please visit the Company&#8217;s web site at<font style="font-style:italic;text-decoration:underline;color:#0000FF;"> www.kaiseraluminum.com. </font>The web site includes a section for investor relations under which the Company provides notifications of news or announcements regarding its financial performance, including Securities and Exchange Commission (SEC) filings, investor events, and earnings and other press releases. In addition, all Company filings submitted to the SEC are available through a link to the section of the SEC&#8217;s web site at <font style="font-style:italic;text-decoration:underline;">www.sec.gov</font><font style="font-style:italic;"> </font>which includes: Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and Proxy Statements for the Company&#8217;s annual stockholders&#8217; meetings and other information statements as filed with the SEC. In addition, the Company provides a webcast of its quarterly earnings calls and certain events in which management participates or hosts with members of the investment community. </p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:11pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Investor Relations and Public Relations Contact:</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-style:italic;font-size:11pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">Melinda C. Ellsworth</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-style:italic;font-size:11pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">Kaiser Aluminum Corporation</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-style:italic;font-size:11pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">(949) 614-1757</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:11pt;">&nbsp;</p>
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end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>kalu-20210903.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-09-02T19:29:37.5177072+00:00 -->
<!-- Version            : 5.0.1.648 -->
<!-- Package ID         : 4dcc22d060484b2ebbd42a121937f645 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema xmlns:dei="http://xbrl.sec.gov/dei/2021" xmlns:us-types="http://fasb.org/us-types/2021-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2021" xmlns:srt-types="http://fasb.org/srt-types/2021-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2021" xmlns:sic="http://xbrl.sec.gov/sic/2021" xmlns:kalu="http://www.kaiseraluminum.com/20210903" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:srt="http://fasb.org/srt/2021-01-31" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:us-gaap="http://fasb.org/us-gaap/2021-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2021" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:country="http://xbrl.sec.gov/country/2021" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:currency="http://xbrl.sec.gov/currency/2021" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.kaiseraluminum.com/20210903" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance" />
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase" />
  <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt" />
  <xsd:import schemaLocation="https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd" namespace="http://xbrl.org/2020/extensible-enumerations-2.0" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/country/2021/country-2021.xsd" namespace="http://xbrl.sec.gov/country/2021" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/currency/2021/currency-2021.xsd" namespace="http://xbrl.sec.gov/currency/2021" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2021/dei-2021.xsd" namespace="http://xbrl.sec.gov/dei/2021" />
  <xsd:import schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" namespace="http://www.xbrl.org/dtr/type/2020-01-21" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/exch/2021/exch-2021.xsd" namespace="http://xbrl.sec.gov/exch/2021" />
  <xsd:import schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" />
  <xsd:import schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" namespace="http://www.xbrl.org/2009/role/negated" />
  <xsd:import schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" namespace="http://www.xbrl.org/2009/role/net" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/naics/2021/naics-2021.xsd" namespace="http://xbrl.sec.gov/naics/2021" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/sic/2021/sic-2021.xsd" namespace="http://xbrl.sec.gov/sic/2021" />
  <xsd:import schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd" namespace="http://fasb.org/srt/2021-01-31" />
  <xsd:import schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd" namespace="http://fasb.org/srt-roles/2021-01-31" />
  <xsd:import schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd" namespace="http://fasb.org/srt-types/2021-01-31" />
  <xsd:import schemaLocation="https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd" namespace="http://xbrl.sec.gov/stpr/2021" />
  <xsd:import schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd" namespace="http://fasb.org/us-gaap/2021-01-31" />
  <xsd:import schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd" namespace="http://fasb.org/us-roles/2021-01-31" />
  <xsd:import schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd" namespace="http://fasb.org/us-types/2021-01-31" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:roleType id="TemplateLink" roleURI="http://www.kaiseraluminum.com/20210903/role/TemplateLink" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>00000 - Document - Template Link</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kalu-20210903_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Label Links, all" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kalu-20210903_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation Links, all" xlink:type="simple" />
      <link:roleType roleURI="http://www.kaiseraluminum.com/20210903/taxonomy/role/DocumentDocumentAndEntityInformation" id="Role_DocumentDocumentAndEntityInformation">
        <link:definition>100000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
</xsd:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>kalu-20210903_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-09-02T19:29:37.5187110+00:00 -->
<!-- Version            : 5.0.1.648 -->
<!-- Package ID         : 4dcc22d060484b2ebbd42a121937f645 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/label/axisDefault" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd#axisDefault" xlink:type="simple" />
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CoverAbstract" xlink:type="locator" xlink:label="dei_CoverAbstract" />
    <link:label xml:lang="en-US" xlink:label="dei_CoverAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CoverAbstract" xlink:to="dei_CoverAbstract_lbl" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag" />
    <link:label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation State Country Code</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation State Country Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityFileNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityFileNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address Address Line1</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address Address Line2</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address City Or Town</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address State Or Province</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address Postal Zip Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Written Communications</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_WrittenCommunications" xlink:to="dei_WrittenCommunications_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Written Communications</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Soliciting Material</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Soliciting Material</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Tender Offer</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Issuer Tender Offer</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementIssuerTenderOffer" xlink:to="dei_PreCommencementIssuerTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Issuer Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security 12b Title</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security12b Title</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>kalu-20210903_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii" standalone="yes"?>
<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-09-02T19:29:37.5187110+00:00 -->
<!-- Version            : 5.0.1.648 -->
<!-- Package ID         : 4dcc22d060484b2ebbd42a121937f645 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.kaiseraluminum.com/20210903/role/TemplateLink" xlink:href="kalu-20210903.xsd#TemplateLink" xlink:type="simple" />
  <link:roleRef roleURI="http://www.kaiseraluminum.com/20210903/taxonomy/role/DocumentDocumentAndEntityInformation" xlink:href="kalu-20210903.xsd#Role_DocumentDocumentAndEntityInformation" xlink:type="simple" />
  <link:presentationLink xlink:type="extended" xlink:role="http://www.kaiseraluminum.com/20210903/taxonomy/role/DocumentDocumentAndEntityInformation">
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine2" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1" xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber" xlink:type="locator" xlink:label="dei_EntityTaxIdentificationNumber" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber" xlink:type="locator" xlink:label="dei_EntityFileNumber" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode" xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>kalu-8k_20210903_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2021"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
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            <identifier scheme="http://www.sec.gov/CIK">0000811596</identifier>
        </entity>
        <period>
            <startDate>2021-09-03</startDate>
            <endDate>2021-09-03</endDate>
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    <dei:EntityRegistrantName contextRef="C_0000811596_20210903_20210903" id="F_000003">KAISER ALUMINUM CORP</dei:EntityRegistrantName>
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    <dei:EntityTaxIdentificationNumber contextRef="C_0000811596_20210903_20210903" id="F_000008">94-3030279</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="C_0000811596_20210903_20210903" id="F_000009">27422 Portola Parkway</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="C_0000811596_20210903_20210903" id="F_000010">Suite&#160;200</dei:EntityAddressAddressLine2>
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    <dei:EntityAddressStateOrProvince contextRef="C_0000811596_20210903_20210903" id="F_000012">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="C_0000811596_20210903_20210903" id="F_000013">92610-2831</dei:EntityAddressPostalZipCode>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
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<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140368621284344">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Document and Entity Information<br></strong></div></th>
<th class="th"><div>Sep. 03, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Sep.  03,  2021<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">KAISER ALUMINUM CORP<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000811596<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation State Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">1-09447<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">94-3030279<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">27422 Portola Parkway<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">Suite&#160;200<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Foothill Ranch<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CA<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">92610-2831<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(949)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">614-1740<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre Commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre Commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Security 12b Title</a></td>
<td class="text">Common Stock, par value $0.01 per share<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">KALU<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
