<SEC-DOCUMENT>0001193125-21-164928-index.html : 20210518 <SEC-HEADER>0001193125-21-164928.hdr.sgml : 20210518 <ACCEPTANCE-DATETIME>20210518115129 ACCESSION NUMBER: 0001193125-21-164928 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20210518 DATE AS OF CHANGE: 20210518 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: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-09447 FILM NUMBER: 21934947 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 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>d158428ddefa14a.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: d158428ddefa14a.htm
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