UNITED STATES SECURITIES AND EXCHANGE COMMISSION , D.C. 20549 FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): September 8, 2010

Kaiser Aluminum Corporation ______(Exact name of registrant as specified in its charter)

Delaware 000-52105 943030279 ______(State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.)

27422 Portola Parkway, Suite 200, Foothill 92610 Ranch, ______(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: 949-614-1740

Not Applicable ______Former name or former address, if changed since last report

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:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Top of the Form

Item 8.01 Other Events.

As previously disclosed, Anglesey Aluminium Metal Ltd. ("Anglesey"), jointly owned by Kaiser Aluminum Corporation (the "Company") and Alcan ("Rio Tinto"), fully curtailed its smelting operations at the end of September 2009. On September 8, 2010, Anglesey issued a press release confirming that all smelting related activities at the Anglesey facility will be de-commissioned. Following the cessation of its smelting operations in September 2009, Anglesey operated and expects to continue to operate as a remelt and casting facility producing value added products such as ingot and billet. A copy of the Anglesey press release is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

Exhibit 99.1 - Press release issued by Anglesey Aluminium Metal Ltd. dated September 8, 2010. Top of the Form

SIGNATURES

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.

Kaiser Aluminum Corporation

September 10, 2010 By: John M. Donnan

Name: John M. Donnan Title: Senior Vice President, Secretary and General Counsel Top of the Form

Exhibit Index

Exhibit No. Description

99.1 Press release issued by Anglesey Aluminium Metal Ltd. dated September 8, 2010. Anglesey Aluminium to de-commission all smelting related activities

8th September 2010

Anglesey Aluminium Metal, jointly owned by Rio Tinto Alcan (51 per cent) and Kaiser Aluminium (49 per cent), has confirmed that all smelting related activities at the Anglesey Aluminium operational site will be de-commissioned. The decommissioning will be done while respecting all standards concerning health, safety and environment

In September 2009 the production of aluminium ceased due to the company not being able to source a commercially viable power contract. Anglesey, which now employs approximately 90 people, will continue to operate a re- melt business whilst continuing work to promote economic activity in Holyhead and the surrounding area.

Over the last 18 months Anglesey Aluminium have worked in partnership with Isle of Anglesey County Council and the Welsh Assembly Government to investigate the possibility of using their site infrastructure and land to try to create as many jobs as possible for the local community. It is hoped that over time there will be at least as many employment opportunities created as there was when AAM was fully operational.

Part of AAM’s recent activity has been to work in partnership with IOACC, WAG and Stena to trial the use of the AAM jetty for the berthing of cruise ships. This project has been a great success as over 17 ships have berthed at the newly refurbished jetty with the local and wider economy benefitting from passengers going into the local town and surrounding area and this has resulted in bookings being taken for future years; excellent feedback has been received from the cruise ship operators.

The operational site will take around 12 months to be de-commissioned with the infrastructure and buildings being used to create new economic activity.

The Biomass project continues whilst AAM await the approval of their section 36 application. Potentially this project may be sold as a private business opportunity.

Anglesey Aluminium was established as a joint venture between Rio Tinto and Kaiser Aluminium in 1971 and currently has an annual production in excess of 80,000 tonnes of billet.