UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: August 8, 2012 12:00 P.M.
Form: S-4
CIK: 0000811596
Company Name: KAISER ALUMINUM CORP
File Number: 333-182809
CIK: 0001552578
Company Name: Kaiser Aluminum Investments Co
File Number: 333-182809-05
CIK: 0001552579
Company Name: Kaiser Aluminum Mill Products, Inc.
File Number: 333-182809-04
CIK: 0001552569
Company Name: Kaiser Aluminum Fabricated Products, LLC
File Number: 333-182809-03
CIK: 0001552568
Company Name: Kaiser Aluminum Alexco, LLC
File Number: 333-182809-02
CIK: 0001552580
Company Name: Kaiser Aluminum Washington, LLC
File Number: 333-182809-01