8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, 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): May 14, 2012

KAISER ALUMINUM CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Delaware		0-52105	94-3030279
(State or Other Jurisdiction		(Commission	(I.R.S. Employer
of Incorporation)		File Number)	Identification No.)
	27422 Portola Parkway, Suite 200
	Foothill Ranch, California		92610-2831
	(Address of Principal Executive Offices)		(Zip Code)

(949) 614-1740

(Registrant's telephone number, including area code)

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:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

As previously disclosed in the Quarterly Report on Form 10-Q of Kaiser Aluminum Corporation (the "Company") for the quarter ended March 31, 2012, filed with the Securities and Exchange Commission (the "SEC") on April 26, 2012, beginning with the quarter ended March 31, 2012, the Company changed its segment reporting to report its primary aluminum hedging activities in its Fabricated Products segment because the Company had begun conducting its primary aluminum hedging activities solely through the Fabricated Products segment. As a result, for the quarter ended March 31, 2012, the Company's operations consisted, and will continue to consist, of the Fabricated Products segment and two business units, Secondary Aluminum and Corporate and Other. The Secondary Aluminum and Corporate and Other business units are combined into one category, All Other, which is not considered a reportable segment.

Prior to January 1, 2012, the Company included its primary aluminum hedging activities in its Hedging business unit, which was included with Secondary Aluminum and Corporate and Other in All Other.

In connection with this revised segment presentation in this Current Report on Form 8-K (the “Current Report”), the Company is updating the following items that were originally included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011 (the “2011 10-K”) to reflect the changes noted above:

• Item II, Part 7. Management's Discussion and Analysis of Financial Condition and Results of Operations, attached hereto as Exhibit 99.1 and incorporated herein by reference; and

• Part II, Item 8. Financial Statements and Supplementary Data, attached hereto as Exhibit 99.2 and incorporated herein by reference.

The information included in this Current Report is presented for informational purposes only in connection with the above-described segment reporting change. There is no change to the Company's previously reported consolidated net operating results, financial condition or cash flows. This Current Report does not reflect events occurring subsequent to the filing of the 2011 10-K with the SEC on February 29, 2012, and does not modify or update the disclosures therein in any way, other than as required to reflect the change in segments as described above and set forth in Exhibits 99.1 and 99.2 attached hereto. For information on developments regarding the Company since the filing of the 2011 10-K, please refer to the Company's reports filed with the SEC, including the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2012.

Item 9.01. Financial Statements and Exhibits.

	(d)	Exhibits .
Exhibit
Number			Description
23.1			Consent of Deloitte & Touche LLP.
99.1			Management's Discussion and Analysis of Financial Condition and Results of Operations (superseding Part II, Item 7 of the Annual Report on Form 10-K for the year ended December 31, 2011).
99.2			Financial Statements and Supplementary Data (superseding Part II, Item 8 of the Annual Report for the year ended December 31, 2011).
*101.INS			XBRL Instance
*101.SCH			XBRL Taxonomy Extension Schema
*101.CAL			XBRL Taxonomy Extension Calculation
*101.DEF			XBRL Taxonomy Extension Definition
*101.LAB			XBRL Taxonomy Extension Label
*101.PRE			XBRL Taxonomy Extension Presentation

* As provided in Rule 406T of Regulation S-T, XBRL information is furnished but deemed not filed for purposes of sections 11 or 12 of the Securities Act of 1933, as amended, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, and otherwise is not subject to liability under these sections.

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 (Registrant)
By:	/s/ Cherrie I. Tsai
	Cherrie I. Tsai Assistant Secretary and Assistant General Counsel

Date: May 14, 2012

INDEX OF EXHIBITS

Exhibit
Number	Description
23.1	Consent of Deloitte & Touche LLP.
99.1	Management's Discussion and Analysis of Financial Condition and Results of Operations (superseding Part II, Item 7 of the Annual Report on Form 10-K for the year ended December 31, 2011).
99.2	Financial Statements and Supplementary Data (superseding Part II, Item 8 of the Annual Report for the year ended December 31, 2011).
*101.INS	XBRL Instance
*101.SCH	XBRL Taxonomy Extension Schema
*101.CAL	XBRL Taxonomy Extension Calculation
*101.DEF	XBRL Taxonomy Extension Definition
*101.LAB	XBRL Taxonomy Extension Label
*101.PRE	XBRL Taxonomy Extension Presentation

* As provided in Rule 406T of Regulation S-T, XBRL information is furnished but deemed not filed for purposes of sections 11 or 12 of the Securities Act of 1933, as amended, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, and otherwise is not subject to liability under these sections.

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-165869 on Form S-3 and Nos. 333-170513 and 333-135613 on Form S-8 of our reports dated February 29, 2012 (May 14, 2012 as to Note 15), relating to the consolidated financial statements of Kaiser Aluminum Corporation (which report expresses an unqualified opinion), appearing in this Current Report on Form 8-K, and our report dated February 29, 2012 related to the effectiveness of Kaiser Aluminum Corporation's internal control over financial reporting (which report expresses an adverse opinion on the effectiveness of the Company's internal control over financial reporting because of a material weakness), appearing in the Annual Report on Form 10-K of Kaiser Aluminum Corporation for the year ended December 31, 2011.

/s/ DELOITTE & TOUCHE LLP

Costa Mesa, California

May 14, 2012

EX-99.1

Exhibit 99.1

Part II Item 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations

The consolidated financial information for 2010 and 2009 has been updated within the Management's Discussion and Analysis of Financial Condition and Results of Operations to reflect the effects of the restatement as more fully described in Note 20, "Restatement of Previously Issued Consolidated Financial Statements"included in Item 8. “Financial Statements and Supplementary Data” of this Report.

Further, on January 1, 2012, management began reviewing the results of the primary aluminum hedging activities (which prior to January 1, 2012 had been reported in the Hedging business unit which was included in All Other), with the results of the Fabricated Products segment because we had begun to conduct such hedging activities with respect to primary aluminum solely for the Fabricated Products segment. Accordingly, all segment information presented herein reflects the inclusion of primary aluminum hedging activities in the Fabricated Products segment for all periods presented.

You should read the following discussion and analysis in conjunction with our Consolidated Financial Statements and related Notes thereto included in Exhibit 99.2 of this Form 8-K and the Risk Factors included in Part I, Item 1A of the 2011 Form 10-K, as well as other cautionary statements and risks described elsewhere in the 2011 Form 10-K and our other filings with the Securities and Exchange Commission.

This reportcontains statements which constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements appear throughout this Report and can be identified by the use of forward-looking terminology such as “believes,” “expects,” “may,” “estimates,” “will,” “should,” “plans” or “anticipates” or the negative of the foregoing or other variations of comparable terminology, or by discussions of strategy. Readers are cautioned that any such forward-looking statements are not guarantees of future performance and involve significant risks and uncertainties, and that actual results may vary from those in the forward-looking statements as a result of various factors. These factors include: the effectiveness of management’s strategies and decisions; general economic and business conditions including cyclicality and other conditions in the aerospace, automobile and other end market segments we serve; developments in technology; new or modified statutory or regulatory requirements; and changing prices and market conditions. This Item and Item 1A. “Risk Factors” each identify other factors that could cause actual results to vary. No assurance can be given that these are all of the factors that could cause actual results to vary materially from the forward-looking statements.

Management’s discussion and analysis of financial condition and results of operations (“MD&A”) is designed to provide a reader of our financial statements with a narrative from the perspective of our management on our financial condition, results of operations, liquidity, and certain other factors that may affect our future results. Our MD&A is presented in the following sections:

• Overview;

• Management Review of 2011 and Outlook for the Future;

• Results of Operations;

• Liquidity and Capital Resources;

• Contractual Obligations, Commercial Commitments, and Off-Balance-Sheet and Other Arrangements;

• Critical Accounting Estimates and Policies;

• New Accounting Pronouncements; and

• Available Information.

Our MD&A should be read in conjunction with the consolidated financial statements and related notes included in Item 8. “Financial Statements and Supplementary Data” of this Report. This discussion reflects the effects of the restatement in Note 20, Item 8. “Financial Statements and Supplementary Data.”

In the discussion of operating results below, certain items are referred to as non-run-rate items. For purposes of such discussion, non-run-rate items are items that, while they may recur from period-to-period, (i) are particularly material to results, (ii) affect costs primarily as a result of external market factors, and (iii) may not recur in future periods if the same level of underlying performance were to occur. Non-run-rate items are part of our business and operating environment but are worthy of being highlighted for the benefit of the users of the financial statements. Our intent is to allow users of the financial statements to consider our results both in light of and separately from items such as fluctuations in underlying metal prices, natural gas prices, and currency exchange rates.

Overview

We are a leading North American manufacturer of semi-fabricated specialty aluminum products for aerospace / high strength, general engineering, automotive, and other industrial applications. We also own a 49% interest in Anglesey Aluminium Limited (“Anglesey”), which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales.

At December 31, 2011, we operated 11 focused production facilities in the United States and one facility in Canada that produce rolled, extruded, and drawn aluminum products used principally for aerospace and defense, automotive, consumer durables, electronics, electrical, and machinery and equipment end market segment applications. Through these facilities, we produced and shipped approximately 560.9 million pounds of semi-fabricated aluminum products which comprised effectively all of our total consolidated net sales of approximately $1,301.3 million during the year ended December 31, 2011.

We have long-standing relationships with our customers, which consist primarily of blue-chip companies including leading aerospace companies, automotive suppliers and metal distributors. In our served markets, we believe we are the supplier of choice to many of our customers, providing “Best in Class” customer satisfaction and offering a broad product portfolio. We have a culture of continuous improvement that is facilitated by the Kaiser Production System (“KPS”), an integrated application of the tools of Lean manufacturing, Six Sigma and Total Productive Manufacturing. We believe KPS enables us to continue to reduce our own manufacturing costs, eliminate waste throughout the value chain, and deliver “Best in Class” customer service through consistent, on-time delivery of superior quality products on short lead times. We strive to tightly integrate the management of our operations across multiple production facilities, product lines and our served markets in order to maximize the efficiency of product flow to our customers.

A fundamental part of our business model is to mitigate the impact of aluminum price volatility on our cash flow. We manage the risk of fluctuations in the price of primary aluminum through either (i) pricing policies that allow us to pass the underlying cost of metal onto customers, or (ii) hedging by purchasing financial derivatives to shield us from exposure related to firm-price sales contracts that specify the underlying metal price plus a conversion price. While we can generally pass metal price movement onto customers, for some of our higher value-added products sold on a spot basis, our ability to change prices can lag, sometimes by as much as several months, with a favorable impact to us when metal prices decline and an adverse impact to us when metal prices increase. The average London Metal Exchange (“LME”) transaction price per pound of primary aluminum for 2011, 2010 and 2009 were $1.09, $0.99 and $0.76, respectively. At February 23, 2012, the LME transaction price per pound was $1.01.

Our highly engineered products are manufactured to meet demanding requirements of aerospace and defense, general engineering, automotive and other industrial applications. We have focused our business on select end market segment applications where we believe we have sustainable competitive advantages and opportunities for long-term profitable growth. We believe that we differentiate ourselves with “Best in Class” customer satisfaction and a broad product offering, including superior products in our Kaiser Select^® product line. Our Kaiser Select^® products are manufactured to deliver enhanced product characteristics with improved consistency which results in better performance, lower waste, and, in many cases, lower cost for our customers.

In the commercial aerospace sector, we believe that global economic growth and development will continue to drive growth in airline passenger miles. In addition, trends such as longer routes and larger payloads, and a focus on fuel efficiency have increased the demand for new and larger aircraft. We believe that the long-term demand drivers, including growing build rates, larger airframes and increased use of monolithic design throughout the industry will continue to increase demand for our high strength aerospace plate. Monolithic design and construction utilizes aluminum plate that is heavily machined to form the desired part from a single piece of metal as opposed to using aluminum sheet, extrusions or forgings that are affixed to one another using rivets, bolts or welds.

Our products are also sold into defense end market segments. Ongoing requirements of active military engagements continue to drive demand for our products. Longer term, we expect the production of the F-35, or Joint Strike Fighter, to also drive demand for our high strength products.

Commercial aerospace and defense applications have demanding customer requirements for quality and consistency. As a result, there are a very limited number of suppliers worldwide who are qualified to serve these market segments. We believe barriers to entry include significant capital requirements, technological expertise and a rigorous qualification process for safety-critical applications.

Our general engineering products serve the North American industrial market segments, and demand for these products generally tracks the broader economic environment. We expect a gradual recovery in demand throughout the supply chain as the economy continues to improve.

We expect the 2012 North American automotive sector build rates to increase approximately 10% over 2011. Our automotive products typically have specific performance attributes in terms of machinability and mechanical properties for

specific applications across a broad mix of North American original equipment manufacturers (“OEMs”) and automotive platforms. We believe that these attributes are not easily replicated by our competitors and are important to our customers, who are typically first tier automotive suppliers. Additionally, we believe that in North America, from 2001 to 2010, the aluminum extrusion content per vehicle grew at a compound annual growth rate of 3.5%, as automotive OEMs and their suppliers found opportunities to decrease weight without sacrificing structural integrity and safety performance. We also believe the United States’ Corporate Average Fuel Economy (“CAFE”) regulations, which increase fuel efficiency standards on an annual basis, will continue to drive growth in demand for aluminum extruded components in passenger vehicles as a replacement for the heavier weight of steel components.

For purposes of segment reporting under United States generally accepted accounting principles (“GAAP”), we treat our Fabricated Products segment as its own reportable segment. Prior to January 1, 2012, we combined our three other business units, Secondary Aluminum, Hedging and Corporate and Other into one category, which we refer to as All Other. All Other is not considered a reportable segment (see Note 15 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report).

Management Review of 2011 and Outlook for the Future

Overall Fabricated Products shipment volumes in 2011increased as compared to 2010, reflecting improved economic conditions and stronger demand across all our end market applications. Shipments of aerospace and high strength products increased in 2011 due primarily to higher demand for heat treat plate and sheet for commercial aerospace applications. In addition, shipments from recently acquired facilities (Chandler, Arizona (Extrusion) and Florence, Alabama) contributed to the increase from 2010. Shipments of automotive extrusion products increased due to higher North American automotive build rates and the ramp up of our new aluminum extrusion programs.

Our 2011 results reflected a 9% increase in Fabricated Products shipment volume and a 10% increase in Fabricated Products realized prices. The increase in prices in our Fabricated Products segment reflects both higher value-added revenue per pound and higher underlying hedged, alloyed metal prices passed through to customers. Value-added revenue per pound increased due to a shift in mix toward higher margin products during the year.

In 2011, we (i) integrated fully the manufacturing facility in Chandler, Arizona, and other assets, of Alexco into the operations of our Fabricated Products segment, (ii) continued to ramp up production at our world class Kalamazoo, Michigan casting and extrusion facility, (iii) continued to improve manufacturing efficiencies to achieve further cost improvements over our 2010 performance, (iv) expanded our product offering of KaiserSelect^® products to meet the needs and specifications of our customers, (v) continued to strengthen our platform for growth through the strategic acquisitions and continued investment in our business, and (vi) strengthened our financial position through the refinancing of our revolving credit facility.

The long-term prospects for aerospace and high strength applications remain strong, and we continue to expect strong demand growth for our products driven by increasing build rates, larger airframes, and continued conversion to monolithic design. We are well positioned to meet this growing demand. Our value added revenue for aerospace applications achieved record levels in 2011, and we expect robust demand to continue in 2012.

We also continue to be optimistic about automotive growth opportunities attributable to increasing aluminum extrusion content and higher build rates, which we anticipate will continue for the next several years. Demand for our general engineering applications continues to reflect an ongoing, slow but steady economic recovery. We expect to see improving demand and normal seasonal strength for our automotive and general engineering applications in the first half of 2012.

Longer term, we are well positioned in attractive, growing markets, particularly aerospace and automotive. With improving demand and the benefit from our organic and acquisition investments yet to be realized, our long-term earnings potential remains strong. As evidenced by the expansion of our aerospace extrusion capacity at the Chandler, Arizona (Extrusion) facility and plans for further expansion of our aerospace plate capacity at the Spokane, Washington facility, announced in 2011, we continue to have additional opportunities for growth. In addition, we will continue to consider complementary acquisitions.

Our focus in 2012 will be:

• continuing to differentiate ourselves with additional KaiserSelect^® products, “Best In Class” customer satisfaction, strong delivery performance, expanded product breadth, and broader geographic marketing presence;

• continuing to improve the manufacturing efficiencies of our facilities to generate additional cost improvements over our 2011 performance; and

• continuing to invest in our facilities to support growth and further enhance operating efficiencies.

Results of Operations

Fiscal 2011 Summary

• Net sales in 2011 increased to $1,301.3 million compared to $1,079.1 million for 2010. The increase included higher Fabricated Products segment shipment volume, reflecting improved economic conditions and stronger demand for products across our end market segments.

• Our operating income for 2011 was $55.0 million compared to operating income of $41.1 million for 2010. Operating income for 2011 included items that we consider to be non-run-rate, which totaled to a charge of $31.2 million, primarily related to non-cash mark-to-market losses on our derivative positions. Operating income for 2010 included significant non-run-rate items totaling to a charge of $24.0 million, primarily related to environmental expenses of $13.9 million and a non-cash impairment charge of $4.6 million in regard to certain assets relating to Property, plant and equipment (see further discussion of our operating income before non-run-rate in “Segment and Business Unit Information” below).

• Net income for 2011 was $25.1 million, compared to $12.0 million of net income for 2010. Net income for 2011 and 2010 included the non-run-rate items as discussed above.

• Our effective tax provision rate for 2011 was 39.2% (see discussion in “Consolidated Selected Operational and Financial Information - Income Tax Provision” below).

• Effective January 1, 2011, we purchased the Chandler, Arizona (Extrusion) facility and related assets of Alexco, which manufactures hard alloy extrusions for the aerospace industry, for cash consideration of $83.2 million (net of $4.9 million of cash received in the acquisition).

• In September 2011, we amended our revolving credit facility to increase the commitment by $100 million to $300 million, extend the maturity to September 2016, improve pricing and provide more financial flexibility.

• We had no borrowings and $260.5 million of borrowing availability (net of $8.9 million letters of credit) under the revolving credit facility as of December 31, 2011.

• We paid a total of approximately $18.9 million, or $0.96 per common share, in cash dividends to stockholders, including holders of restricted stock, and in dividend equivalents to the holders of certain restricted stock units and the holders of performance shares with respect to one half of all outstanding performance shares.

• One of our largest stockholders, a voluntary employee’s beneficiary association, or VEBA, that provides benefits for certain eligible retirees represented by certain unions and their spouses and eligible dependents (the “Union VEBA”), sold 1,321,485 shares of our common stock at a weighted average price of $49.58 per share thereby increasing VEBA assets by $65.5 million and increasing Stockholders’ equity by $40.5 million (net of tax).

Consolidated Selected Operational and Financial Information

The table below provides selected operational and financial information on a consolidated basis (in millions of dollars, except shipments and prices) for 2011, 2010 and 2009.

The following data should be read in conjunction with our consolidated financial statements and the notes thereto included in Item 8. “Financial Statements and Supplementary Data” of this Report. See Note 15 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for further information regarding segments.

	Years Ended December 31,
	2011			2010			2009
	(In millions of dollars, except shipments and average sales price)
Shipments (mm lbs):
Fabricated Products	560.9			514.2			428.5
All Other1	—			0.4			113.9
	560.9			514.6			542.4
Average Realized Sales Price (per pound):
Fabricated Products2	$	2.32		$	2.10		$	2.09
All Other1	$	—		$	0.92		$	0.79
Net Sales:
Fabricated Products	$	1,301.3		$	1,078.8		$	897.1
All Other1	—			0.3			89.9
Total Net Sales	$	1,301.3		$	1,079.1		$	987.0
Segment Operating Income (Loss):
Fabricated Products34	$	83.6		$	81.7		$	148.4
All Other5	(28.6		)	(40.6		)	(29.7		)
Total Operating Income	$	55.0		$	41.1		$	118.7
Income tax provision	$	(16.2	)	$	(13.1	)	$	(48.1	)
Net Income	$	25.1		$	12.0		$	70.5
Capital Expenditures	$	32.5		$	38.9		$	59.2

________________________________

¹   Shipments, averaged realized prices and net sales in All Other in 2010 and 2009 represent activity involving primary aluminum purchased by us from Anglesey while it continued its smelting operations (prior to September 30, 2009) and resold by us. (See further discussion in “Segment and Business Unit Information” below.)

²  Average realized prices for our Fabricated Products segment are subject to fluctuations due to changes in product mix and underlying primary aluminum prices, and are not necessarily indicative of changes in underlying profitability. See Item 1. “Business” of this Report.

³  Operating results in the Fabricated Products segment for 2011, 2010 and 2009 included non-cash LIFO inventory (benefits) charge of $(7.1) million, $16.5 million and $8.7 million, respectively. Also included in the Fabricated Products segment operating results for 2009 were $9.3 million of lower of cost or market inventory write-down and $5.4 million of restructuring charges relating to the restructuring plans involving our Tulsa, Oklahoma and Bellwood, Virginia facilities. Restructuring charges in 2011 and 2010 were not material. Also included in the Fabricated Products segment operating results for 2011, 2010 and 2009 were $1.7 million, $13.6 million and $0.7 million, respectively, of environmental expense. Fabricated Products segment operating results for 2010 also included $3.9 million of asset impairment charge relating to certain Property, plant and equipment.

⁴  Fabricated Products segment results for 2011, 2010 and 2009 include non-cash mark-to-market (losses) gains on primary aluminum, natural gas, electricity and foreign currency hedging activities totaling $(29.9) million, $(0.7) million and $66.1 million, respectively. For further discussion regarding mark-to-market matters, see Note 12 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report.

⁵  Operating results of All Other for 2009 include non-cash mark-to-market gain on foreign currency derivatives of $14.4 million. Also included in the operating income of All Other were $1.8 million of impairment charges in 2009 relating to the Company's investment in Anglesey.

Summary. We reported net income of $25.1 million for 2011 compared to $12.0 million for 2010 and $70.5 million for 2009. All periods include a number of non-run-rate items that are more fully explained below.

Net Sales. We reported Net sales for 2011 of $1,301.3 million, compared to $1,079.1 million for 2010 and $987.0 million for 2009. As more fully discussed below, the increase in Net sales during 2011 was primarily due to an increase in Fabricated Products segment shipments and an increase in average realized prices per pound compared to the prior year. The realized prices per pound was a result of higher value added revenue and higher underlying metal prices. Fluctuation in underlying

primary aluminum market prices does not necessarily directly impact profitability because (i) a substantial portion of the business conducted by the Fabricated Products segment passes primary aluminum price changes directly onto customers and (ii) our hedging activities in support of Fabricated Products segment firm-price sales agreements limit our losses and gains from primary metal price changes.

The increase in Net sales during 2010 compared to 2009 was primarily due to an increase in Fabricated Products segment shipments, partially offset by lower sales in All Other related to Anglesey’s remelt operations reported on a net revenue recognition basis commencing in the fourth quarter of 2009. Realized prices per pound for the Fabricated Products segment declined slightly in 2010 compared to the prior year, with little impact to Net sales, as higher underlying metal prices largely offset lower value added revenue.

Cost of Products Sold Excluding Depreciation, Amortization and Other Items. Cost of products sold, excluding depreciation, amortization and other items for 2011 totaled $1,158.9 million, or 89% of Net Sales, compared to $946.8 million, or 88% ofNet sales, in 2010 and $766.4 million, or 78% of Net sales, in 2009. Included in Cost of products sold, excluding depreciation, amortization and other items were $(29.9) million, $(0.8) million and $80.5 million unrealized mark-to-market (losses) gains on our derivative positions for the 2011, 2010 and 2009, respectively. See "Segment and Business Unit Information" below for a detailed discussion of the comparative results of operations for 2011, 2010 and 2009.

Lower of Cost or Market Inventory Write-down. There were no lower of cost or market inventory write-downs in 2011 or 2010. We recorded lower of cost or market inventory write-downs of $9.3 million in 2009 as a result of declining metal prices.

Impairment of Investment in Anglesey. In 2009, we recorded a $1.8 million charge to further impair our investment in Anglesey to zero. Based on our assessment of the facts and circumstances, we suspended the equity method of accounting for our investment in Anglesey commencing in the third quarter of 2009 and continuing through December 31, 2011.

Restructuring Costs and Other Charges. During 2008 and 2009, we closed our Tulsa, Oklahoma facility and curtailed operations at our Bellwood, Virginia facility to focus solely on drive shaft and seamless tube products. These restructuring efforts were substantially completed by the end of 2009. Restructuring costs and other charges were $5.4 million in 2009 primarily related to employee termination costs. We recorded an immaterial amount of restructuring benefits in 2010 primarily related to $1.0 million of revisions of estimated employee termination costs, offset by an additional restructuring charge of $0.7 million in regard to the impairment of certain Construction in Progress assets. Restructuring benefit in 2011 was $0.3 million reflecting revisions of estimated employee termination costs.

Depreciation and Amortization. Depreciation and amortization for 2011 was $25.2 million compared to $19.8 million for 2010 and $16.4 million for 2009. Depreciation and amortization expense increased in 2011 compared to 2010 primarily due to (i) bringing on-line certain production equipment relating to our investment in the Kalamazoo, Michigan facility, (ii) additional depreciation expense relating to property, plant and equipment acquired in connection with the acquisitions of the Florence, Alabama facility and the Chandler, Arizona (Extrusion) facility, and (iii) amortization of intangible assets acquired in connection with these acquisitions. Depreciation and amortization expense increased in 2010 compared to 2009 primarily due to (i) bringing on-line certain production equipment relating to our investment in the Kalamazoo, Michigan facility and (ii) amortization of intangible assets acquired in connection with the acquisitions of the Florence, Alabama facility.

Selling, Administrative, Research and Development, and General. Selling, administrative, research and development, and general expense totaled $62.7 million in 2011 compared to $67.7 million in 2010. The decrease during 2011was primarily due to (i) a $11.1 million decrease in net periodic pension benefit cost with respect to VEBAs due to changes in the actuarial estimates, (ii) a $2.2 million decrease in workers' compensation expense at our non-operating locations due to (a) lower estimated case reserve in 2011, (b) higher estimated incurred but not reported expenses in 2010 relating to historical workers' compensation cases, partially offset by (c) higher incurred but not reported expenses in 2011 due to a decrease in discount rate, partially offset by (iii) an increase of $1.9 million relating to our long-term and short-term incentive plans, (iv) a $1.9 million increase in environmental expense at our non-operating locations, (v) an increase in selling expense of $1.7 million primarily as a result of the acquisition of our Chandler, Arizona (Extrusion) facility effective January 1, 2011 and the acquisition of our Florence, Alabama facility on August 9, 2010, and (vi) an increase in research and development expense of approximately $1.2 million.

Selling, administrative, research and development, and general expense totaled $67.7 million in 2010 compared to $69.9 million in 2009. The decrease during 2010 was primarily due to lower non-cash stock compensation expense relating to our long-term incentive programs.

Other Operating (Benefits) Charges. Other operating (benefits) charges were $(0.2) million, $4.0 million and $(0.9) million for 2011, 2010 and 2009, respectively. Other operating benefits for 2011 primarily relates to cash received from pre-emergence activities. Other operating charges for 2010 primarily consisted of $1.9 million of impairment charge in connection with the sale of our Greenwood, South Carolina facility, and $2.0 million of impairment charge in regard to certain assets relating to Construction in progress. Other operating benefits for 2009 primarily reflected recovery of a pre-emergence obligation owed to

us, for which we had previously established a full reserve.

Interest Expense. Interest expense represents cash and non-cash interest expense incurred on our debt instruments and our revolving credit facility, net of capitalized interest. Interest expense was $18.0 million, $11.8 million and zero for 2011, 2010 and 2009, respectively, net of $1.3 million, $2.8 million and $2.7 million of interest capitalization to Construction in progress. Interest expense in 2011 and 2010 were primarily related to interest incurred on our $175 million principal amount of 4.5% Cash Convertible Senior Notes due April 2015 (the “Notes”). Interest expense in 2009 was primarily related to interest incurred on our revolving credit facility.

Other Income (Expense), Net. Other income (expense), net was $4.3 million for 2011, compared to $(4.2) million for 2010 and $(0.1) million for 2009. Other income (expense), net for 2011 and 2010 was primarily related to net unrealized mark-to-market changes on the derivative instruments relating to our Notes. Other income (expense), net for 2009 was primarily related to lower interest income as the result of lower market interest rates.

Income Tax Provision. The income tax provision for 2011 was $16.2 million, or an effective tax rate of 39.2%. The difference between the effective tax rate and the projected blended statutory tax rate for 2011 was primarily due to (i) the impact of a non-deductible compensation expense, which resulted in an increase to the income tax provision of $1.1 million and increased the blended statutory tax provision rate by approximately 2.7% and (ii) a foreign tax benefit, resulting primarily from the reduction of unrecognized tax benefits, including interest and penalties, which decreased the income tax provision by $0.6 million and the blended statutory tax provision by 1.5%.

The income tax provision for 2010 was $13.1 million, or an effective tax rate of 52.2%. The difference between the effective tax rate and the projected blended statutory tax rate for 2010 was primarily due to (i) an increase in the valuation allowance for certain federal and state net operating losses, which resulted in an increase to the income tax provision of $2.1 million and an increase to the blended statutory tax provision rate of 8.4%; (ii) a decrease in state net operating losses related to lower state apportionment in various states of $2.3 million, which increased the blended statutory rate by 9.2%, (iii) unrecognized tax benefits, including interest and penalties, which decreased the income tax provision by $1.1 million and the blended statutory tax provision rate by approximately 4.4%; (iv) the impact of a non-deductible compensation expense, which resulted in an increase to the income tax provision of $0.6 million, and increased the blended statutory tax provision rate by approximately 2.4% and (v) the foreign currency impact on unrecognized tax benefits, interest and penalties, which resulted in a $0.6 million currency translation adjustment that was recorded in Accumulated other comprehensive income.

The income tax provision for 2009 was $48.1 million, or an effective tax rate of 40.5%. The difference between the effective tax rate and the projected blended statutory tax rate for 2009 was primarily due to (i) the impact of a non-deductible compensation expense, which resulted in an increase to the income tax provision of $4.7 million, and increased the blended statutory tax provision rate by approximately 3.9%; (ii) a decrease in the valuation allowance for certain federal and state net operating losses, state tax rate adjustments and federal general business tax credits, which resulted in a decrease to the income tax provision of $2.9 million and a decrease to the blended statutory tax provision rate of 2.4%; (iii) unrecognized tax benefits, including interest and penalties, which increased the income tax provision by $1.3 million and the blended statutory tax provision rate by approximately 1.1%; and (iv) the foreign currency impact on unrecognized tax benefits, interest and penalties, which resulted in a $2.7 million currency translation adjustment that was recorded in Accumulated other comprehensive income.

Derivatives

From time to time, we enter into derivative transactions, including forward contracts and options, to limit our economic (i.e., cash) exposure resulting from (i) metal price risk related to our sale of fabricated aluminum products and the purchase of metal used as raw material for our fabrication operations, (ii) energy price risk relating to fluctuating prices of natural gas and electricity used in our production processes, and (iii) foreign currency requirements with respect to our foreign subsidiaries, investment, and cash commitments for equipment purchases. In March 2010, in connection with the issuance of the Notes, we purchased cash-settled call options (the “Call Options”) relating to our common stock to limit our exposure to the cash conversion feature of the Notes (see Note 3 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report).

We may modify the terms of our derivative contracts based on operational needs or financing objectives. As our hedging activities are generally designed to lock-in a specified price or range of prices, realized gains or losses on the derivative contracts utilized in the hedging activities generally offset at least a portion of any losses or gains, respectively, on the transactions being hedged at the time the transactions occur. However, due to mark-to-market accounting, during the term of the derivative contracts, significant unrealized, non-cash gains and losses may be recorded in the income statement (see Note 12 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report). We may also be exposed to margin calls placed on derivative contracts, which we try to minimize or offset through the management of counterparty credit lines, the utilization of options as part of our hedging activities, or both. We regularly

review the creditworthiness of our derivative counterparties and do not expect to incur a significant loss from the failure of any counterparties to perform under any agreements.

The fair value of our derivatives recorded on the Consolidated Balance Sheets at December 31, 2011 and December 31, 2010 was $(23.8) million and $0.7 million, respectively. The decrease in the aggregate fair value during 2011 was primarily due to (i) decreases in underlying primary aluminum, gas and electricity prices, partially offset by (ii) a net increase in the fair value of derivatives related to the Notes primarily as a result of decrease in our stock price at December 31, 2011. The changes in market value of derivative contracts resulted in the recognition of a $25.9 million unrealized mark-to-market loss on derivatives, which we consider to be a non-run-rate item (see Note 12 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report).

Fair Value Measurement

We apply the fair value hierarchy for the recognition and measurement of assets and liabilities. An asset or liability’s fair value classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. In determining fair value, we utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. We also consider counterparty risk in our assessment of fair value.

The fair values of financial assets and liabilities are measured on a recurring basis. We have elected not to carry all financial assets and liabilities at fair value, other than as required by GAAP. Financial assets and liabilities that we carry at fair value, as required by GAAP, include (i) our derivative instruments, (ii) the plan assets of the VEBAs and our Canadian defined benefit pension plan, and (iii) available for sale securities, consisting of the investments related to our deferred compensation plan.

The majority of our non-financial assets and liabilities, which include goodwill, intangible assets, inventories and property, plant, and equipment, are not required to be carried at fair value on a recurring basis. However, if certain triggering events occur (or at least annually for goodwill), an evaluation of a non-financial asset or liability is required, potentially resulting in an adjustment to the carrying amount of such asset or liability.

Below is a discussion of the fair value inputs to our material financial assets and liabilities measured and carried at fair value:

Commodity, Energy, Electricity and Foreign Currency Hedges— The fair values of a majority of these derivative contracts are based upon trades in liquid markets. Valuation model inputs can generally be verified and valuation techniques do not involve significant judgment. The fair values of such financial instruments are generally classified within Level 2 of the fair value hierarchy (see Note 13 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report). We, however, have some derivative contracts that do not have observable market quotes. For these financial instruments, we use significant other observable inputs (e.g., information concerning regional premiums for swaps). Where appropriate, valuations are adjusted for various factors, such as bid/offer spreads.

Cash Conversion Feature of the Notes and Call Options— The value of the cash conversion feature of the Notes is measured as the difference between the estimated fair value of the Notes and the estimated fair value of the Notes without the cash conversion feature. The Call Options are valued using a binomial lattice valuation model. See Note 13 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional disclosure regarding these valuations; such disclosure is incorporated herein by reference.

Employee Benefit Plan and VEBA Assets— In determining the fair value of employee benefit plan and VEBA assets, we utilize primarily the results of valuations supplied by the investment advisors responsible for managing the assets of each plan. We have no management control over, or administration role with respect to, either the Union VEBA or the Salaried VEBA. Both VEBAs are managed and administered by separate trustees and organizations, and we have no control over the plan assets. We depend upon the VEBA administrators to provide asset information to us in a timely, complete and accurate manner. The VEBA administrators have no obligation to provide such information to us.

Certain plan assets are valued based upon unadjusted quoted market prices in active markets that are accessible at the measurement date for identical, unrestricted assets (e.g., liquid securities listed on an exchange). Such assets are classified within Level 1 of the fair value hierarchy. Valuation of other invested plan assets is based on significant observable inputs (e.g., net asset values of registered investment companies, valuations derived from actual market transactions, broker-dealer supplied valuations, or correlations between a given U.S. market and a non-U.S. security). Valuation model inputs can generally be verified and valuation techniques do not involve significant judgment. The fair values of such financial instruments are classified within Level 2 of the fair value hierarchy. Our Canadian pension plan assets and the plan assets of the VEBAs are measured annually on December 31.

Restructuring Activities

During 2008 and 2009, we closed our Tulsa, Oklahoma facility and curtailed operations at our Bellwood, Virginia facility to focus solely on drive shaft and seamless tube products. These restructuring activities reduced excess capacity in our manufacturing system and costs related to maintaining such excess capacity. These restructuring efforts were substantially completed by the end of 2009. There was no cash restructuring obligation at December 31, 2011. See Note 16 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for additional detail on our restructuring liability.

Segment and Business Unit Information

For the purposes of segment reporting under GAAP, as of December 31, 2011, we had one reportable segment, Fabricated Products. Prior to January 1, 2012, we also had three other business units, which we combined into All Other. All Other consisted of Secondary Aluminum, Hedging and Corporate and Other business units. The Fabricated Products segment sells value added products such as heat treat sheet and plate and extruded rod, bar, wire, and tube products, which are primarily used in four end market segments: aerospace and high strength products (which we refer to as Aero/HS products), general engineering products (which we refer to as GE products), extrusions for automotive applications (which we refer to as Automotive Extrusions), and other industrial products (which we refer to as Other products). The Secondary Aluminum business unit sells value added products such as ingot and billet produced by Anglesey, and receives a portion of a premium over normal commodity market prices. Our Hedging business unit conducted hedging activities in respect of British Pound Sterling exchange rate risk relating to Anglesey’s smelting operations through September 30, 2009. Our Corporate and Other business unit provides general and administrative support for our operations. All Other is not considered a reportable segment. The accounting policies of the segment and business units are the same as those described in Note 1 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report. Segment results are evaluated internally before interest expense, other expense (income) and income taxes.

Fabricated Products

The table below provides selected operational and financial information (in millions of dollars except shipments and average realized sales price) for our Fabricated Products segment for 2011, 2010 and 2009:

	Years Ended December 31,
	2011		2010		2009
Shipments (mm lbs)	560.9		514.2		428.5
Composition of average realized sales price (per pound):
Hedged cost of alloyed metal	$	1.17	$	1.02	$	0.89
Average realized value added revenue	$	1.15	$	1.08	$	1.20
Average realized sales price	$	2.32	$	2.10	$	2.09
Net sales	$	1,301.3	$	1,078.8	$	897.1
Segment Operating Income	$	83.6	$	81.7	$	148.4

The table below provides shipment and value added revenue information (in millions of dollars except shipments and value added revenue per pound) for our end market segment applications for 2011, 2010 and 2009 for our Fabricated Products segment:

	Years Ended December 31,
	2011		2010		2009
Shipments (mm lbs):
Aero/HS Products	192.0		158.9		144.8
GE Products	220.2		217.4		189.0
Automotive Extrusions	62.8		54.2		36.2
Other Products	85.9		83.7		58.5
	560.9		514.2		428.5
Value added revenue:1
Aero/HS Products	$	376.5	$	295.4	$	278.0
GE Products	175.2		174.0		164.7
Automotive Extrusions	51.6		45.6		31.3
Other Products	40.9		40.9		39.4
	$	644.2	$	555.9	$	513.4
Value added revenue per pound:
Aero/HS Products	$	1.96	$	1.86	$	1.92
GE Products	0.80		0.80		0.87
Automotive Extrusions	0.82		0.84		0.86
Other Products	0.48		0.49		0.67
	$	1.15	$	1.08	$	1.20

_______________________________

¹     Value added revenue represents net sales less hedged cost of alloyed metal.

Effective January 1, 2011, we purchased the Chandler, Arizona (Extrusion) facility, and related assets, of Alexco, which manufactures hard alloy extrusions for the aerospace industry. The Chandler, Arizona (Extrusion) facility is a well-established supplier of aerospace extrusions, and the acquisition positions us in a significant market segment that provides a natural complement to our offerings of sheet, plate, cold finish rod and bar and drawn tube products for aerospace applications. We paid net cash consideration of $83.2 million with existing cash on hand of $4.9 million and assumed certain liabilities totaling approximately $1.0 million. Total acquisition related expenses were $0.1 million and $0.4 million for the years ended December 31, 2011 and December 31, 2010, respectively. Such expenses are included within Selling, administrative, research and development, and general expenses. See Note 5 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for additional pro forma information relating to the acquisition.

The transaction generated approximately $34.1 million of goodwill and $35.4 million of intangible assets relating primarily to customer relationships. The intangible assets are expected to be amortized over an estimated weighted-average useful life of approximately 25 years. See Note 6 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information relating to goodwill and intangible assets arising from this acquisition.

For 2011, Net sales of fabricated products increased by 21% to $1,301.3 million, as compared to 2010, due primarily to a 10% increase in average realized sales price and a 9% increase in shipments. The increase in shipments was comprised of (i) a 21%increase in Aero/HS products shipments primarily due to higher commercial aerospace demand for plate and sheet products as well as the inclusion of shipments out of the acquired Chandler, Arizona (Extrusion) and the Florence, Alabama facilities, (ii) a 16%increase in Automotive Extrusion shipments as we saw new aluminum automotive extrusion programs using our products ramp up as well as an increase in existing programs due to the increase in North American automotive build rates, and (iii) moderate increases in shipments and mix shifts among our GE and Other products. Average realized sales price increased, reflecting both higher underlying hedged, alloyed metal prices passed through to customers as well as higher value-added revenue per pound as compared to 2010.

For 2010, Net sales of fabricated products increased by 20% to $1,078.8 million, as compared to 2009, due primarily to a 20% increase in shipments reflecting improved economic conditions and significantly stronger demand for GE products and Automotive Extrusions, as destocking by our distributor customers that was prevalent in 2009 abated in 2010 and automotive build rates improved over the prior year. Shipments of Aero/HS products were moderately higher in 2010, reflecting improved demand mitigated by continued destocking of aerospace plate products. Average realized sales price increased slightly

reflecting higher underlying hedged, alloyed metal prices passed through to customers, largely offset by lower value-added revenue per pound as compared to 2009. The decline in value-added revenue per pound was due to a shift in mix toward lower margin products and slightly lower pricing during the year.

Operating income in the Fabricated Products segment for 2011, 2010 and 2009 included several large non-run-rate items. These items are listed below (in millions of dollars):

	Years Ended December 31,
	2011			2010			2009
Operating income	$	83.6		$	81.7		$	148.4
Impact to operating income of non-run-rate items:
Adjustments to plant-level LIFO1	(0.2		)	(0.6		)	(3.2		)
Non-cash lower of cost or market inventory write-down	—			—			(9.3		)
Mark-to-market (losses) gains on derivative instruments2	(29.9		)	(0.7		)	66.1
Workers' compensation expense due to a change in discount rate3	(3.1		)	—			—
Restructuring benefits (charges)	0.3			0.3			(5.4		)
Asset impairment charges	—			(3.9		)	—
Environmental expenses	(1.7		)	(13.6		)	(0.7		)
Total non-run-rate items	(34.6		)	(18.5		)	47.5
Operating income excluding non-run-rate items	$	118.2		$	100.2		$	100.9

_______________________

¹  We manage our Fabricated Products segment business on a monthly LIFO basis at each plant, but report inventory externally on an annual LIFO basis in accordance with GAAP on a consolidated basis. This amount represents the conversion from GAAP LIFO applied on a consolidated basis for the Fabricated Products segment to monthly LIFO applied on a plant-by-plant basis. This amount was presented on a gross basis separately as LIFO gain (loss) and Metal loss (gain) in our Annual and Quarter Reports on Forms 10-K and 10-Q for each of the prior annual and interim periods.

²  Our pricing of fabricated aluminum products is generally intended to lock in a conversion margin (representing the value added from the fabrication process(es)) and to pass metal price risk to our customers. However, in certain instances we enter into firm-price arrangements with our customers and incur price risk on our anticipated primary aluminum purchases in respect of such customer orders.We use third-party hedging instruments to limit exposure to metal price risks related to firm-price customer sales contracts. In addition, we also use third-party hedging instruments to limit exposure to energy price risks. These amounts represent the unrealized (losses) gains on these derivative instruments.

³  Amount represents a portion of the workers' compensation expense in 2011 resulting from the change in the discount rates applied in estimating workers compensation liabilities. We consider such expense to be non-run-rate because such amounts are not related to the incurrence and resolution of workers compensation claims. Non run-rate workers' compensation expense in 2010 and 2009 were not material because discount rates did not fluctuate significantly.

As noted above, operating income excluding identified non-run-rate items for 2011 was $18.0 million higher than for 2010. Operating income excluding identified non-run-rate items for 2010 was $0.7 million lower than for 2009. Operating income excluding non-run-rate items for 2011 as compared to 2010 and for 2010 as compared to 2009 reflects the following impact:

	2011 vs. 2010 Favorable/(Unfavorable)			2010 vs. 2009 Favorable/(Unfavorable)
Sales impact	$	42.2		$	10.0
Realized gains (losses) on primary aluminum derivative positions	2.0			(14.1		)
Manufacturing efficiency (decreases) increases	(8.7		)	9.0
Energy & freight related costs	(6.1		)	4.4
Depreciation and amortization	(5.4		)	(3.2		)
Selling, general, administrative and research and development expense	(4.4		)	(1.1		)
Currency exchange related	(1.3		)	(2.8		)
Planned major maintenance	(0.2		)	(2.7		)
Other	(0.1		)	(0.2		)
Total	$	18.0		$	(0.7	)

The favorable sales impact in 2011 compared to 2010 was due to higher overall shipments of virtually all products, including additional shipments from the Chandler, Arizona (Extrusion) and Florence, Alabama facilities, which were acquired in January 2011 and August 2010, respectively.

Outlook

The long-term prospects for aerospace and high strength applications remain strong, and we continue to expect strong demand growth for our products driven by increasing build rates, larger airframes, and continued conversion to monolithic design. We are well positioned to meet this growing demand. Our value added revenue for aerospace applications achieved record levels in 2011, and we expect robust demand to continue in 2012.

We also continue to be optimistic about automotive growth opportunities attributable to increasing aluminum extrusion content and higher build rates, which we anticipate will continue for the next several years. Demand for our general engineering applications continues to reflect an ongoing, slow but steady economic recovery. We expect to see improving demand and normal seasonal strength for our automotive and general engineering applications in the first half of 2012.

Longer term, we are well positioned in attractive, growing markets, particularly aerospace and automotive. With improving demand and the benefit from our organic and acquisition investments yet to be realized, our long-term earnings potential remains strong. As evidenced by the expansion of our aerospace extrusion capacity at the Chandler, Arizona (Extrusion) facility and plans for further expansion of our aerospace plate capacity at the Spokane, Washington facility, announced in 2011, we continue to have additional opportunities for growth. In addition, we will continue to consider complementary acquisitions.

All Other

As of December 31, 2011, All Other consisted of Secondary Aluminum, Hedging and Corporate and Other business units. The Secondary Aluminum business unit sells value added products such as ingot and billet produced by Anglesey, for which we receive a portion of a premium over normal commodity market prices. Our Hedging business unit conducted hedging activities in respect to British Pound Sterling exchange rate risk relating to Anglesey’s smelting operations through September 30, 2009. Our Corporate and Other business unit provides general and administrative support for our operations. All Other is not considered a reportable segment.

Secondary Aluminum. We own a 49% interest in Anglesey, which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales. Anglesey produces value-added secondary aluminum ingot and billet and sells 49% of its output to us. We in turn sell the secondary aluminum products to a third party, receiving a portion of a premium over normal commodity market prices in transactions structured to largely eliminate our metal price and currency exchange rate risks with respect to our income and cash flow related to Anglesey. Because we in substance act as an agent in connection with sales of secondary aluminum produced by Anglesey, our sales of such secondary aluminum are presented net of the cost of sales. Accordingly, net sales and operating income in 2011 were zero.

Anglesey operated as a primary aluminum smelter until September 30, 2009, when it fully curtailed its smelting operations due to the inability to find affordable power upon the expiration of its long-term power contract.

Although Anglesey is decommissioning a portion of the site and pursuing the disposition of some of its assets, Anglesey currently expects to continue to conduct secondary aluminum remelt and casting operations. We do not expect those efforts to impact our results or result in any distribution by Anglesey to its owners.

See Note 3 of Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2010 for additional details on our investment in Anglesey and the suspension of equity method of accounting with respect to our ownership in Anglesey.

The table below provides selected operational and financial information (in millions of dollars except shipments and prices) for Anglesey-related primary and secondary aluminum activities:

	Years Ended December 31,
	2011		2010 1		2009
Shipments (mm lbs)	—		0.4		113.9
Average realized sales price (per pound)	$	—	$	0.92	$	0.79
Net sales	$	—	$	0.3	$	89.9
Operating Income	$	—	$	0.1	$	8.4

^{_________________________________} 

¹ Shipments, net sales and operating income in 2010 represents residual activity of primary aluminum purchased from Anglesey while it operated as a smelter (prior to September 30, 2009) and resold by us in the first quarter of 2010.

The following table recaps the major components of the operating results from Anglesey-related primary and secondary aluminum activities for 2011, 2010 and 2009 (in millions of dollars):

	Years Ended December 31,
	2011		2010		2009
Profit on metal sales from smelting operations (net of alumina sales)1	$	—	$	0.1	$	10.2
Impairment of investment in Anglesey	—		—		(1.8		)
	$	—	$	0.1	$	8.4

_______________________________

¹  Operating income represents earnings on metal purchases from Anglesey and resold by us and on alumina purchases from third parties by us and sold to Anglesey while it operated as a smelter. Such earnings were impacted by the market price for primary aluminum and alumina pricing, offset by the impact of foreign currency translation.

Hedging Activities. The Hedging business unit used third-party hedging instruments to limit our exposure to the British Pound Sterling exchange rate relating to Anglesey’s smelting operations through September 30, 2009.

The table below provides a detail of operating income (in millions of dollars) from our Hedging business unit for 2009:

	Year Ended
	December 31, 2009
Derivative settlements — Pound Sterling	(12.2		)
Mark-to-market on Pound Sterling derivatives	14.4
Operating income	$	2.2

Corporate and Other Activities. Operating expenses within the Corporate and Other business unit represent general and administrative expenses that are not allocated to other business units or segments. The table below presents non-run-rate items within the Corporate and Other business unit, operating expense and operating expense excluding non-run-rate items (in millions of dollars) for 2011, 2010 and 2009:

	Years Ended December 31,
	2011			2010			2009
Operating expense	$	(28.6	)	$	(40.7	)	$	(40.3	)
Impact to operating expense of non-run-rate items:
VEBA net periodic benefit income (cost)1	6.0			(5.1		)	(5.3		)
Environmental expense	(2.2		)	(0.3		)	(1.7		)
Workers' compensation expense due to a change in discount rate2	(0.7		)	—			—
Other operating benefits (charges)	0.3			(0.1		)	0.9
Total non-run-rate items	3.4			(5.5		)	(6.1		)
Operating expense excluding non-run-rate items	$	(32.0	)	$	(35.2	)	$	(34.2	)

_______________________

¹  We have no claim over the VEBAs' plan assets nor any responsibility for the VEBAs' accumulated postretirement obligations. Our only financial obligations to the VEBAs are to pay the annual variable contributions and certain administrative fees. Nevertheless, based on discussions with the staff of the SEC, for accounting purposes we treat the postretirement medical benefits to be paid by the VEBAs and our related annual variable contribution obligations as defined benefit postretirement plans with the current VEBA assets and future variable contributions, and earnings thereon, operating as a cap on the benefits to be paid. Accordingly, we record net periodic postretirement benefit income (costs), which we consider to be non-run-rate, and record any difference between the assets of each VEBA and its accumulated postretirement benefit obligation in our consolidated financial statements. See Note 8 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information relating to the VEBAs.

²  Amount represents a portion of the workers' compensation expense in 2011 resulting from the change in the discount rates applied in estimating workers compensation liabilities. We consider such expense to be non-run-rate because such amounts are not related to the incurrence and resolution of workers compensation claims. Non-run-rate workers' compensation expense in 2010 and 2009 were not material because discount rates did not fluctuate significantly.

Corporate operating expenses excluding non-run-rate items for 2011 were $3.2 millionlower than such expenses for the comparable period in 2010. The decrease primarily reflects (i) lower workers' compensation expense (excluding the impact of discount rate applied in estimating workers' compensation liabilities) related to our non-operating locations of $2.9 million due to higher estimated incurred but not reported expenses in 2010 relating to historical workers' compensation cases and lower estimated case reserve in 2011, (ii) lower medical expense of $1.6 million due to a reduction in medical claims and incurred but not reported expense relating to our retired employees, partially offset by (i) a $0.6 million increase in employee compensation expense relating to salaries and wages and our incentive programs and (ii) a $0.4 million increase in professional fees and general and administrative expenses.

Corporate operating expenses excluding non-run-rate items for 2010 were $1.0 millionhigher than such expenses for the comparable period in 2009. The increase primarily reflects (i) a $1.6 million increase in employee compensation expense relating to our short-term incentive program and other benefit programs and (ii) a $2.0 million increase in workers’ compensation expense relating to historical workers’ compensation cases due to changes in estimated incurred but not reported expenses, partially offset by a $2.3 million decrease in non-cash stock compensation expense due to timing of vesting and changes in vesting assumptions relating to performance shares in connection with our long-term incentive programs.

Other Information

We have significant federal income tax attributes, including sizable net operating loss carry-forwards. Under Section 382(l)(5) of the Code (“Section 382”), our ability to use our federal income tax attributes following a more than 50% change in ownership during any period of 36 consecutive months, all as determined under the Code (an “ownership change”) would be limited annually to an amount equal to the product of (i) the aggregate value of our outstanding common shares immediately prior to the ownership change and (ii) the applicable federal long-term tax exempt rate in effect on the date of the ownership change.

To reduce the risk that an ownership change under Section 382 would jeopardize our ability to fully use our federal income tax attributes, our certificate of incorporation prohibits certain transfers of our equity securities without the prior approval of our Board of Directors if either (a) the transferor holds 5% or more of the total fair market value of all of our issued and outstanding equity securities (such person, a “5% shareholder”) or (b) as a result of such transfer, either (i) any person or group

of persons would become a 5% shareholder or (ii) the percentage stock ownership of any 5% shareholder would be increased (any such transfer, a “5% transaction”). Additionally, to reduce the risk of an ownership change under Section 382, the ability of the Union VEBA, one of our largest shareholders, to sell common shares without the approval of our Board of Directors is limited by a stock transfer restriction agreement. In January 2012, in accordance with the stock transfer restriction agreement and our certificate of incorporation, our Board of Directors granted its written approval permitting the Union VEBA to sell any and all of the 1,321,485 shares that the Union VEBA would be entitled to sell during 12-month period beginning March 24, 2012 at any time during such 12-month period.

Issuances of new common shares also must be considered in determining whether an ownership change has occurred under Section 382. We estimate that we can currently issue approximately 48.9 million common shares without triggering an ownership change. However, 5% transactions would decrease the number of common shares we can issue during any 36 month period without triggering an ownership change and impairing our ability to use our federal income tax attributes. Similarly, any issuance of common shares by us would limit the number of shares that could be transferred in 5% transactions. If at any time we were to issue the maximum number of common shares without triggering an ownership change under Section 382, there could be no 5% transactions during the 36-month period thereafter without potentially impairing our ability to use of our federal income tax attributes.

Liquidity and Capital Resources

Summary

Cash and cash equivalents were $49.8 million at December 31, 2011, compared to $135.6 million at December 31, 2010. The decrease in cash and cash equivalents is primarily related to $83.2 million of net cash consideration paid to purchase the Chandler, Arizona (Extrusion) facility effective January 1, 2011. See “Cash Flows” below for additional information.

Cash equivalents consist primarily of money market accounts, investments with an original maturity of three months or less when purchased, and other highly liquid investments. We place our cash in bank deposits and money market funds with high credit quality financial institutions which invest primarily in commercial paper and time deposits of prime quality, short-term repurchase agreements, and U.S. government agency notes. We have not experienced losses on our temporary cash investments.

In addition to our unrestricted cash and cash equivalents described above, we have restricted cash that is pledged or held as collateral in connection with workers’ compensation requirements and certain other agreements. Short-term restricted cash, which is included in Prepaid expenses and other current assets, totaled $7.8 million at December 31, 2011 and $0.9 million at December 31, 2010. Long-term restricted cash, which is included in Other Assets, was $10.4 million at December 31, 2011 and $16.3 million at December 31, 2010. The $6.9 million increase in short-term restricted cash and the corresponding decrease in long-term restricted cash during 2011 resulted from the anticipation of a release of funds held in a trust account within 12 months. Such funds were released to us in February 2012, and were reclassified from short-term restricted cash to cash and cash equivalents.

On September 30, 2011, we and certain of our subsidiaries amended and extended our credit agreement with JPMorgan Chase Bank, N.A., as administrative agent, and the other financial institutions party thereto (see Note 4 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report). There were no borrowings under our revolving credit facility as of December 31, 2011, nor were there borrowings on the prior revolving credit facility during the nine month ended September 30, 2011, or as of December 31, 2010.

Cash Flows

The following table summarizes our cash flows from operating, investing and financing activities for 2011, 2010 and 2009 (in millions of dollars):

	Years Ended December 31,
	2011			2010			2009
Total cash provided by (used in):
Operating activities:
Fabricated Products	$	105.9		$	103.8		$	180.5
All Other	(43.1		)	(37.5		)	(52.8		)
	$	62.8		$	66.3		$	127.7
Investing activities:
Fabricated Products	$	(115.3	)	$	(42.2	)	$	(59.2	)
All Other	(1.0		)	(4.2		)	18.5
	$	(116.3	)	$	(46.4	)	$	(40.7	)
Financing activities:
Fabricated Products	$	(8.4	)	$	—		$	—
All Other	(23.9		)	85.4			(56.9		)
	$	(32.3	)	$	85.4		$	(56.9	)

Operating Activities

Fabricated Products— In 2011, Fabricated Products segment operating activities provided $105.9 million of cash. Cash provided in 2011 was primarily related to operating income excluding non-run-rate items, depreciation and amortization of $143.0 million and an increase in accounts payables of $11.4 million, partially offset by an increase in inventory of $31.8 million and increase in accounts receivable of $9.9 million.

In 2010, Fabricated Products segment operating activities provided $103.8 million of cash. Cash provided in 2010 was primarily related to operating income excluding non-run-rate items, depreciation and amortization of $119.6 million, an increase in accounts payables and other accrued liabilities of $14.3 million and an increase of $8.5 million in deferred revenue related primarily to cash received during the period from customers in advance of periods for which (i) production capacity is reserved, (ii) customer commitments have been deferred or reduced or (iii) performance is completed. The foregoing cash inflows were partially offset by an increase in inventory of $40.4 million.

In 2009, Fabricated Products’ operating activities provided $180.5 million of cash. Cash provided in 2009 was primarily related to operating income excluding non-run-rate items, depreciation and amortization of $117.1 million and significant cash flows from changes in current assets and liabilities, including a decrease in accounts receivables of $28.8 million, a decrease in inventory of $34.6 million, and an increase of $11.3 million in deferred revenues related primarily to cash received during the year from customers in advance of periods for which (i) production capacity is reserved, (ii) customer commitments have been deferred or reduced or (iii) performance is completed. The foregoing cash inflows were partially offset by a decrease in accrued liability of $10.9 million.

All Other— Cash used in operations in All Other is comprised of (i) cash used in corporate and other activities, (ii) cash provided by (used in) hedging activities with respect to British Pound Sterling exchange rate in 2009 and (iii) cash provided (used) from Anglesey-related operating activities.

Corporate and other operating activities used $41.5 million, $46.0 million and $34.6 million of cash during 2011, 2010 and 2009, respectively. Cash outflow from Corporate and other operating activities in 2011 consisted primarily of payments in respect of cash general and administrative costs of $27.8 million, $9.7 million of interest payment relating to the Notes and the revolving credit facility and $2.2 million of variable VEBA contribution. Cash outflow from Corporate and Other operating activities in 2010 consisted primarily of payments in respect of cash general and administrative costs of $27.4 million, $5.5 million of interest payment relating to the Notes and the revolving credit facility, $2.8 million of variable VEBA contribution and $2.1 million of environmental costs. Cash outflow from Corporate and Other operating activities in 2009 consisted primarily of payments in respect of cash general and administrative costs of $26.1 million, variable VEBA contribution of $4.9 million and $1.6 million of interest payment relating to the revolving credit facility.

Hedging-related activities used $12.2 million of cash during 2009. Cash flows in our Hedging business unit are related to realized hedging losses on our derivative positions relating to British Pound Sterling exchange rate.

Anglesey-related activities (used) provided $(1.6) million, $8.5 million and $(6.0) million of cash in 2011, 2010 and 2009, respectively. Operating cash flows for 2011 and 2010 were related to changes in working capital. Operating cash flows 2009

was comprised of operating income from Anglesey-related activities and changes in working capital.

Investing Activities

Fabricated Products— Cash used in investing activities for Fabricated Products was $115.3 million in 2011, compared to $42.2 million of cash used in 2010 and $59.2 million of cash used in 2009. Cash used in 2011 reflected $83.2 million used for the acquisition of our Chandler, Arizona (Extrusion) facility and $32.1 million used for capital expenditures. Cash used in investing activities in 2010 and 2009 was primarily related to our capital expenditures. See “Capital Expenditures” below for additional information.

All Other— Investing activities in All Other is generally related to activities in restricted cash and capital expenditures within the Corporate and Other business unit. We have restricted cash on deposit as financial assurance for certain environmental obligations and workers’ compensation claims from the State of Washington. Cash used in investing activities in 2011 is comprised of deposit of $1.0 million of restricted cash relating to workers' compensation, $0.4 million of capital expenditures and $0.3 million payment to purchase available for sale securities in connection with our deferred compensation plan, partially offset by $0.7 million cash proceeds from the sale of property. Cash used in investing activities in 2010 is comprised primarily of the purchase of $4.4 million of available for sale securities in connection with our deferred compensation plan, a return of $1.1 million of restricted cash to us relating to workers' compensation deposit, partially offset by $0.9 million of capital expenditures. Cash generated from investing activities in All Other in 2009 represented the return of a portion the 2008 deposits relating to workers' compensation with the State of Washington and margin call deposits to our counterparties relating to our derivative positions at December 31, 2008.

Financing Activities

Fabricated Products— Cash used in financing activities for Fabricated Products in 2011 was $8.4 million, relating primarily to a $7.0 million full repayment of the outstanding principal balance of the promissory note in connection with the purchase of the land and building of our Los Angeles, California facility and principal payments in respect of the note issued by us in connection with the acquisition of our Florence, Alabama facility.

All Other—Cash used by financing activities in 2011 was $23.9 million, primarily representing (i) $18.9 million of cash dividends paid to our stockholders, including holders of restricted stock, and dividend equivalents paid to holders of restricted stock units and to holders of performance shares with respect to one half of performance shares, (ii) $2.1 million of financing costs paid in connection with the amendment of our revolving credit facility and (iii) $3.1 million of cash used to repurchase our common stock to satisfy employees' minimum statutory withholding taxes resulting from the vesting of employee restricted stock, restricted stock units and performance shares.

Cash provided by financing activities in 2010 was $85.4 million. The cash inflow was primarily related to the issuance of the Notes and related transactions. We received $169.2 million of net proceeds from the Notes offering after deducting the initial purchasers’ discounts and transaction fees and fees and expenses of $5.8 million. In connection with the issuance of the Notes, we paid $31.4 million to purchase the Call Options and received $14.3 million for issuing net-share-settled warrants (the "Warrants"). In addition, we used $44.2 million of the net proceeds from the Notes transaction to repurchase approximately 1.2 million shares of our common stock. In addition to the financing transactions relating to the Notes, we also paid $19.0 million in cash dividends to our stockholders, including holders of restricted stock, and dividend equivalents to holders of restricted stock units and to holders of performance shares with respect to one half of performance shares in 2010.

Cash used in financing activities in the 2009 was $56.9 million. The cash outflow was primarily related to the repayment of net borrowings under our revolving credit facility of $36.0 million and $19.6 million in cash dividends and dividend equivalents.

Sources of Liquidity

We believe our most significant sources of liquidity are funds generated from the expected results of operations, available cash and cash equivalents, and borrowing availability under our revolving credit facility. We believe these sources will be sufficient to finance our cash requirements, including those associated with our strategic investments and existing expansion plans, for at least the next 12 months. Nevertheless, our ability to satisfy our working capital requirements and debt service obligations and to fund planned capital expenditures will substantially depend upon our future operating performance (which will be affected by prevailing economic conditions) and financial, business and other factors, some of which are beyond our control.

Our revolving credit facility matures in September 2016 and provides for borrowings up to $300.0 million (subject to borrowing base limitations), of which up to a maximum of $60.0 million may be utilized for letters of credit. Our revolving credit facility may, subject to certain conditions and the agreement of lenders thereunder, be increased up to $350.0 million.

The table below summarizes recent availability and usage of our revolving credit facility (in millions of dollars except for borrowing rate):

	December 31, 2011			February 23, 2012
Borrowing commitment	$	300.0		$	300.0
Borrowing base availability	$	260.5		$	284.5
Outstanding borrowings	$	—		$	—
Outstanding letters of credit	$	8.9		$	8.9
Net remaining borrowing availability	$	251.6		$	275.6
Borrowing rate (if applicable)1	4.0		%	4.0		%

_______________________

¹  Such borrowing rate, if applicable, represents the interest rate to any overnight borrowings under the revolving credit facility.

At December 31, 2011, we were in compliance with all covenants contained in our revolving credit facility. We do not believe that covenants contained in our revolving credit facility are reasonably likely to limit our ability to raise additional debt or equity, should we choose to do so during the next 12 months, nor do we believe it is likely that during the next 12 months we will trigger the availability threshold that would require measuring and maintaining a fixed charge coverage ratio.

See Note 4 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for a description regarding our revolving credit facility; such description is incorporated herein by reference.

Debt

Mandatory principal payment on the outstanding Notes will be $175.0 million in April 2015, assuming no early conversions of the Notes. The Notes were not convertible as of December 31, 2011, and we do not expect the Notes to be converted by investors prior to the first quarter of 2015 (if at all). See Note 3 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for information on the circumstances in which the Notes will become convertible prior to January 1, 2015.

Mandatory principal payments on the promissory note issued in connection with our acquisition of the Florence, Alabama facility (the "Nichols Promissory Note") are $1.3 million in each of the years of 2012, 2013 and 2014, and $0.8 million in 2015. See Note 4 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information relating to the Nichols Promissory Note.

Investments and Capital Expenditures

Effective January 1, 2011, we acquired the Chandler, Arizona (Extrusion) facility, which manufacturers hard alloy extrusions for the aerospace industry. We paid cash consideration of $83.2 million (net of $4.9 million cash received in the acquisition) with existing cash on hand, and assumed certain liabilities totaling approximately $1.0 million. See Note 5 of Notes to Consolidated Financial Statements in Item 8. “Financial Statements and Supplementary Data” of this Report for information about the assets acquired and liabilities assumed in connection with this transaction.

A component of our long-term strategy is our capital expenditure program including our organic growth initiatives. Total capital expenditures were $32.5 million, $38.9 million and $59.2 million for 2011, 2010 and 2009, respectively.

During 2011 we commenced projects to increase capacity at our Chandler, Arizona (Extrusion) facility and at our Spokane, Washington facility to meet growing demand for aerospace extrusions and heat treat plate applications. Spending at these two locations comprised over half of our capital expenditures in 2011.

Our Kalamazoo, Michigan extrusion and remelt facility comprised a small portion of expenditures in 2011 and the majority of our capital expenditures in 2010 and 2009. The facility improves the capabilities, product quality and efficiency of our soft alloy rod and bar operations and provides a platform for future growth for extrusion applications.

The rest of our capital spending was spread among our manufacturing locations on projects expected to reduce operating costs, improve quality, increase capacity or enhance operational security.

We expect total capital expenditures and investments for Fabricated Products will be in the $40.0 million to $50.0 million range for all of 2012 and will be funded using cash generated from operations, available cash and cash equivalents, borrowings

under the revolving credit facility and/or other third-party financing arrangements. We expect to have additional opportunities for growth that will support capital spending over the next few years at a pace equaling or exceeding the pace of 2011.

The level of anticipated capital expenditures may be adjusted from time to time depending on our business plans, our price outlook for fabricated aluminum products, our ability to maintain adequate liquidity and other factors. No assurance can be provided as to the timing of any such expenditures or the operational benefits expected therefrom.

Dividends

During 2011, 2010 and 2009, we paid a total of $18.9 million, $19.0 million and $19.6 million, or $0.96, $0.96 and $0.96 per common share, respectively, in cash dividends to our stockholders, including the holders of restricted stock, and in dividend equivalents to the holders of restricted stock units and the holders of performance shares with respect to one half of the performance shares issued under our equity and performance incentive plan.

On January 13, 2012, we announced that our Board of Directors approved the declaration of a quarterly cash dividend of $0.25 per common share, or $4.9 million (including dividend equivalents), which was paid on or about February 15, 2012 to stockholders of record at the close of business on January 24, 2012.

The future declaration and payment of dividends, if any, will be at the discretion of the Board of Directors and will depend on a number of factors, including our financial and operating results, financial position, and anticipated cash requirements. We can give no assurance that dividends will be declared and paid in the future.

Stock Repurchase Plan

In June 2008, our Board of Directors approved a program for the repurchase of up to $75.0 million of our common shares to occur in open-market or privately negotiated transactions, at such times and prices as management deems appropriate, to be funded with our excess liquidity after giving consideration to internal and external growth opportunities and future cash flows. The program may be modified, extended or terminated by our Board of Directors at any time. All shares repurchased under this stock repurchase program were treated as treasury shares. As of December 31, 2011, $46.9 million remained available under this repurchase authorization.

During the first quarter of 2010, in connection with the issuance of the Notes, and pursuant to a separate authorization from our Board of Directors, we repurchased approximately 1.2 million shares of our outstanding common stock for $44.2 million, in privately negotiated, off-market transactions.

Under our Amended and Restated 2006 Equity and Performance Incentive Plan, participants may elect to have us withhold common shares to satisfy minimum statutory tax withholding obligations arising in connection with the vesting of non-vested shares, restricted stock units and performance shares. Any such shares withheld are canceled by us on the applicable vesting dates, which correspond to the times at which income to the employee is recognized. When we withhold these common shares, we are required to remit to the appropriate taxing authorities the fair value of the shares withheld as of the vesting date. The number of shares withheld is determined based on the closing price per common share as reported on the Nasdaq Global Select Market on such dates. During 2011, we withheld 62,637 shares of common stock to satisfy employees' minimum statutory tax withholding obligations. The withholding of common shares by us on the vesting date is deemed a purchase of the common shares.

Restrictions Related to Equity Capital

As discussed in Note 8 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” and elsewhere in this Report, there are restrictions on the transfer of our common shares.

Environmental Commitments and Contingencies

We are subject to a number of environmental laws, fines or penalties assessed for alleged breaches of the environmental laws, and to claims based upon such laws.

We have established procedures for regularly evaluating environmental loss contingencies, including those arising from environmental reviews and investigations and any other environmental remediation or compliance matters. Our environmental accruals represent our undiscounted estimate of costs reasonably expected to be incurred based on presently enacted laws and regulations, existing requirements, currently available facts, existing technology, and our assessment of the likely remediation actions to be taken.

During the third quarter of 2010, we increased our environmental accruals in connection with our submission of a draft feasibility study to the Washington State Department of Ecology on September 8, 2010. The draft feasibility study included recommendations for a range of alternative remediations to primarily address the historical use of oils containing

polychlorinated biphenyls, or PCBs, at our Trentwood facility in Spokane, Washington which may be implemented over the next 30 years. During 2011, we continued to work with the Washington State Department of Ecology to revise the draft feasibility study and to determine viable remedial approaches. As of December 31, 2011, no agreement with the Washington State Department of Ecology had been reached on the final remediation approach. The draft feasibility study is still subject to further reviews, public comment and regulatory approvals before the final consent decree is issued. We expect the consent decree to be issued in late 2012.

At December 31, 2011, environmental accrual of $22.0 million represented our best estimate of the incremental cost based on proposed alternatives in the draft feasibility study related to our Trentwood facility in Spokane, Washington and on investigational studies and other remediation activities occurring at certain other locations owned by us. We expect that these remediation actions will be taken over the next 30 years and estimate that the incremental direct costs attributable to the remediation activities to be charged to these environmental accruals will be approximately $1.2 million in 2012, $3.6 million in 2013, $1.8 million in 2014, $0.8 million in 2015, $0.6 million in 2016 and $14.0 million for years thereafter through the balance of the 30-year period.

As additional facts are developed, feasibility studies are completed, draft remediation plans are modified, necessary regulatory approval for the implementation of remediation are obtained, alternative technologies are developed, and/or other factors change, there may be revisions to management’s estimates, and actual costs may exceed the current environmental accruals. We believe at this time that it is reasonably possible that undiscounted costs associated with these environmental matters may exceed current accruals by amounts that could be, in the aggregate, up to an estimated $21.7 million over the next 30 years. It is reasonably possible that our recorded estimate change in the next 12 months.

Contractual Obligations, Commercial Commitments, and Off-Balance Sheet and Other Arrangements

Contractual Obligations and Commercial Commitments

We are obligated to make future payments under various contracts such as long-term purchase obligations and lease agreements. We have grouped these contractual obligations into operating activities, investing activities and financing activities in the same manner as they are classified in our Statements of Consolidated Cash Flows included in Item 8. “Financial Statements and Supplemental Data” in order to provide a better understanding of the nature of the obligations and to provide a basis for comparison to historical information.

The following table provides a summary of our significant contractual obligations at December 31, 2011 (dollars in millions):

			Payments Due by Period
	Total		2012		2013		2014		2015		2016		2017 and Thereafter
Operating activities:1
Purchase obligations	$	288.3	$	279.0	$	1.4	$	1.4	$	1.4	$	1.4	$	3.7
Operating leases	55.8		7.5		6.4		3.6		3.0		2.3		33.0
Environmental liability	22.0		1.2		3.6		1.8		0.8		0.6		14.0
Deferred revenue arrangement	16.8		13.5		3.3		—		—		—		—
Investing activities:2
Capital equipment	1.6		1.6		—		—		—		—		—
Financing activities:3
Principal on the Notes4	175.0		—		—		—		175.0		—		—
Interest on the Notes4	27.6		7.9		7.9		7.9		3.9		—		—
Commitment fees on revolving credit facility5	6.9		1.5		1.5		1.5		1.5		0.9		—
Principal on Nichols Promissory Note	4.7		1.3		1.3		1.3		0.8		—		—
Other:
Standby letters of credit6	9.9										8.9
Uncertain tax liabilities7	13.4		—
Deferred compensation plan liability8	5.1
Total contractual obligations9	$	627.1	$	313.5	$	25.4	$	17.5	$	186.4	$	14.1	$	50.7

__________________________

¹    See “Obligations for Operating Activities” below.

²    See “Obligations for Investing Activities” below.

³    See “Obligations for Financing Activities” below.

⁴  The timing of the principal payment with respect to the Notes is based on the assumption no early conversion occurs. Interest obligations on the Notes are based on scheduled interest payments.

⁵  Future commitment fees are estimated based on the amount of unused credit under our revolving credit facility at December 31, 2011 and assuming no extension of terms beyond the current maturity date of our revolving credit facility which is September of 2016.

⁶  Of the $9.9 million of standby letters of credit, $8.9 million represents letters of credit issued under our revolving credit facility. The letters of credit provide financial assurance of our payment of obligations, primarily related to workers' compensation and environmental compliance, for which specific timing of such payments is uncertain. The letters of credit generally automatically renew every 12 months and terminate when the underlying obligations no longer require assurance or upon the maturity of our revolving credit facility in September of 2016 (for those letters of credit issued under the facility).

⁷  At December 31, 2011, we had uncertain tax positions which ultimately could result in tax payments. As the amount of ultimate tax payments beyond 2012 is contingent on the tax authorities’ assessment, it is not practical to present annual payment information.

⁸  The amount represents liability relating to our deferred compensation plan for certain key employees. As the distribution amount is contingent upon vesting and other eligibility requirements, it is not practical to present annual payment information.

⁹  Total contractual obligations exclude future annual variable cash contributions to the VEBAs, which cannot be determined at this time. At December 31, 2011, we determined the variable cash contribution to the VEBAs in 2012 to be zero. See “Off-Balance Sheet and Other Arrangements” below for a description of our annual variable cash obligations to the VEBAs.

Obligations for Operating Activities

Cash outlays for operating activities primarily consist of purchase obligations with respect to primary aluminum, other raw materials and electricity, and payment obligations under operating leases.

We have various contracts with suppliers of aluminum that require us to purchase minimum quantities of aluminum in future years at a price to be determined at the time of purchase based primarily on the underlying metal price at that time. Amounts included in the table are based on minimum quantities at the metal price at December 31, 2011. We believe the minimum quantities are lower than our current requirements for aluminum. Actual quantities and actual metal prices at the time of purchase could be different.

Operating leases represent multi-year obligations for certain manufacturing facilities, warehousing, office space and equipment.

Environmental liability represents the environmental accrual at December 31, 2011.

Deferred revenue arrangements relate to fees received from customers for future delivery of products over the specified contract period. While these obligations are not expected to result in cash payments, they represent contractual obligations for which we would be obligated if the specified product deliveries could not be made.

Obligations for Investing Activities

Capital project spending included in the preceding table represents non-cancelable capital commitments as of December 31, 2011. We expect capital projects to be funded through cash from our operations, borrowing under our revolving credit facility or other financing sources.

Obligations for Financing Activities

Cash outlays for financing activities consist of our principal obligations under long-term debt, scheduled interest payment on the Notes and commitment fees under our revolving credit facility. Interest relating to the Nichols note payable was immaterial and was not presented. We had zero borrowings outstanding under our revolving credit facility.

Off-Balance Sheet and Other Arrangements

• See Note 8 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for our employee benefit plans including defined contribution plans and defined benefit plans.

• See Note 9 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for our participation in multi-employer pension plans.

• See Note 10 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for our employee incentive plans. Additional equity awards are expected to be made to employees and directors in 2012 and future years.

• Our financial obligations to the VEBAs are (i) a variable cash contribution payable to the Union VEBA and the Salaried VEBA and (ii) an obligation to pay the administrative expenses of the VEBAs, up to $0.3 million per year. The obligation to the Union VEBA with respect to the variable cash contribution extends through September 30, 2017, while the obligation to the Salaried VEBA has no termination date. The amount to be contributed to the VEBAs through September 2017 pursuant to our obligation is 10% of the first $20.0 million of annual cash flow (as defined; in general terms, the principal elements of cash flow are earnings before interest expense, provision for income taxes, and depreciation and amortization less cash payments for, among other things, interest, income taxes, and capital expenditures), plus 20% of annual cash flow, as defined, in excess of $20.0 million. Such annual payments may not exceed $20.0 million and are also limited (with no carryover to future years) to the extent that the payments would cause our liquidity to be less than $50.0 million. As of December 31, 2011, we determined that the variable contribution for 2011 was zero as investments, capital spending, and interest exceeded earnings before interest expense, provision for income taxes, and depreciation and amortization. See Note 8 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information regarding the effect that the VEBA plans had on the consolidated financial statements.

• In March 2010, we issued the Notes and the Warrants, and purchased the Call Options (see Note 3 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report). As of December 31, 2011, the Notes were not convertible. We do not expect the Notes to be converted by investors until close to their maturity date, if at all. It is possible to have the Notes converted prior to their maturity date if, for example, a holder perceives (and market data validates the perception) the market for the Notes to be weaker than the market for our common stock. Upon an investor’s election to convert, we are required to pay the conversion value in cash. We expect that any payment above the principal amount would be effectively offset by payments we would be entitled to receive from exercise of the Call Options.

Critical Accounting Estimates and Policies

Our consolidated financial statements are prepared in accordance with GAAP. In connection with the preparation of our financial statements, we are required to make assumptions and estimates about future events, and apply judgments that affect the reported amounts of assets, liabilities, revenue and expenses and the related disclosures. We base our assumptions, estimates and judgments on historical experience, current trends and other factors that management believes to be relevant at the time our consolidated financial statements are prepared. On a regular basis, management reviews the accounting policies, assumptions, estimates and judgments to ensure that our financial statements are presented fairly and in accordance with GAAP. However, because future events and their effects cannot be determined with certainty, actual results could differ from our assumptions and estimates, and such differences could be material.

Our significant accounting policies are discussed in Note 1 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report. Management believes that the following accounting estimates are the most critical to aid in fully understanding and evaluating our reported financial results, and require management’s most difficult, subjective or complex judgments, resulting from the need to make estimates about the effects of matters that are inherently uncertain. Management has reviewed these critical accounting estimates and related disclosures with the Audit Committee of our Board of Directors.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
Our judgments and estimates with respect to commitments and contingencies.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
Valuation of legal and other contingent claims is subject to a great deal of judgment and substantial uncertainty. Under GAAP, companies are required to accrue for loss contingencies in their financial statements only if both (i) the potential loss is “probable” and (ii) the amount (or a range) of probable loss is “estimatable.” In reaching a determination of the probability of an adverse ruling in respect of a matter, we typically consult outside experts. However, any such judgments reached regarding probability are subject to significant uncertainty. We may, in fact, obtain an adverse ruling in a matter that we did not consider a “probable” loss or “estimatable” and which, therefore, was not accrued for in our financial statements. Additionally, facts and circumstances in respect of a matter can change causing key assumptions that were used in previous assessments of a matter to change. It is possible that amounts at risk in respect of one matter may be “traded off” against amounts under negotiations in a separate matter.	In estimating the amount of any loss, in many instances a single estimation of the loss may not be possible. Rather, we may only be able to estimate a range for possible losses. In such event, GAAP requires that a liability be established for at least the minimum end of the range assuming that there is no other amount which is more likely to occur.	Although we believe that the judgments and estimates discussed herein are reasonable, actual results could differ, and we may be exposed to losses or gains that could be materially different than those reflected in our accruals. To the extent we prevail in matters for which reserves have been established or are required to pay amounts in excess of our reserves, our future results from operations could be materially affected.
Our judgments and estimates in respect of defined benefit plans.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
At December 31, 2011, our financial statements include two defined benefit postretirement medical plans (i.e. the postretirement medical plans maintained by the VEBAs which we are required to reflect on our financial statements despite our limited legal obligations to the VEBAs in regard to those plans) and a pension plan for our Canadian plant. Liabilities and expenses for pension and other postretirement benefits are determined using actuarial methodologies and incorporate significant assumptions, including the rate used to discount the future estimated liability, the long-term rate of return on plan assets, and several assumptions relating to the employee workforce (i.e., salary increases, medical costs, retirement age, and mortality). The most significant assumptions used in determining the estimated year-end obligations were the assumed discount rate, long-term rate of return (“LTRR”) and the assumptions regarding future medical cost increases. In addition to the above assumptions used in the actuarial valuation, changes in plan provisions could also have a material impact on the net funded status of the VEBAs. Our only obligation to the VEBAs is to pay the annual variable contribution amount based on the level of our cash flow. We have no control over any aspect of the plans. We rely entirely on information provided to us by the VEBA administrators with respect to specific plan provisions such as annual benefits paid. See Note 8 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information in respect of the benefit plans.	Since recorded obligations represent the present value of expected pension and postretirement benefit payments over the life of the plans, decreases in the discount rate (used to compute the present value of the payments) would cause the estimated obligations to increase. Conversely, an increase in the discount rate would cause the estimated present value of the obligations to decline. The LTRR on plan assets reflects an assumption regarding what the amount of earnings would be on existing plan assets (before considering any future contributions to the plans). Increases in the assumed LTRR would cause the projected value of plan assets available to satisfy pension and postretirement obligations to increase, yielding a reduced net expense in respect of these obligations. A reduction in the LTRR would reduce the amount of projected net assets available to satisfy pension and postretirement obligations and, thus, cause the net expense in respect of these obligations to increase. As the assumed rate of increase in medical costs goes up, so does the net projected obligation. Conversely, if the rate of increase was assumed to be lower, the projected obligation would decline. A change in plan provisions could cause the estimate obligations to change. An increase in annual paid benefits would increase the estimated present value of the obligations and conversely, a decrease in annual paid benefits would decrease the present value of the obligations.	The rate used to discount future estimated liabilities is determined considering the rates available at year end on debt instruments that could be used to settle the obligations of the plan. An increase/decrease in the discount rate of 1/4 of 1% would impact the projected benefit obligation by approximately $5.3 million to $5.7 million in relation to the Canadian pension plan, and impact 2012 expense by $0.3 million. An increase/decrease in the discount rate of 1/4 of 1% would impact the accumulated pension benefit obligation by approximately $13.7 million to $14.4 million in relation to the Salaried and Union VEBAs, impact service and interest costs by $0.2 million and impact 2012 expense by approximately $0.6 million to $1.0 million. The LTRR on plan assets is estimated by considering historical returns and expected returns on current and projected asset allocations. A change in the assumption for LTRR on plan assets of 1/4 of 1% would impact expense by approximately $1.4 million in 2012 in relation to the Salaried VEBA and the Union VEBA, respectively.
Our judgments and estimates in respect to environmental commitments and contingencies.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
We are subject to a number of environmental laws and regulations, to fines or penalties assessed for alleged breaches of such laws and regulations and to claims and litigation based upon such laws and regulations. Based on our evaluation of environmental matters, we have established environmental accruals, primarily related to potential solid waste disposal and soil and groundwater remediation matters. These environmental accruals represent our estimate of costs reasonably expected to be incurred on a going concern basis in the ordinary course of business based on presently enacted laws and regulations, currently available facts, existing technology and our assessment of the likely remediation action to be taken. See Note 11 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information in respect of environmental contingencies.	Making estimates of possible incremental environmental remediation costs is subject to inherent uncertainties. As additional facts are developed and definitive remediation plans and necessary regulatory approvals for implementation of remediation are established or alternative technologies are developed, changes in these and other factors may result in actual costs exceeding the current environmental accruals.	Although we believe that the judgments and estimates discussed herein are reasonable, actual results could differ, and we may be exposed to losses or gains that could be materially different than those reflected in our accruals. To the extent we prevail in matters for which reserves have been established, or are required to pay amounts in excess of our reserves, our future results from operations could be materially affected.
Our judgments and estimates in respect of conditional asset retirement obligations.
We recognize conditional asset retirement obligations (“CAROs”) related to legal obligations associated with the normal operations of certain of our facilities. These CAROs consist primarily of incremental costs that would be associated with the removal and disposal of asbestos (all of which is believed to be fully contained and encapsulated within walls, floors, ceilings or piping) of certain of our older facilities if such facilities were to undergo major renovation or be demolished. There are currently plans for such renovation or demolition at one facility and management’s current assessment is that certain immaterial CAROs may be triggered during the next four years. For locations where there are no current plans for renovations or demolitions, the most probable scenario is such CAROs would not be triggered for 20 or more years, if at all. Under current accounting guidelines, liabilities and costs for CAROs must be recognized in a company’s financial statements even if it is unclear when or if the CARO will be triggered. If it is unclear when or if a CARO will be triggered, companies are required to use probability-weighting for possible timing scenarios to determine the probability weighted amounts that should be recognized in the company’s financial statements. See Note 13 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information in respect of renovation and demolition contingencies.	The estimation of CAROs is subject to a number of inherent uncertainties including: (1) the timing of when any such CARO may be incurred, (2) the ability to accurately identify all materials that may require special handling or treatment, (3) the ability to reasonably estimate the total incremental special handling and other costs, (4) the ability to assess the relative probability of different scenarios which could give rise to a CARO, and (5) other factors outside a company’s control including changes in regulations, costs and interest rates. As such, actual costs and the timing of such costs may vary significantly from the estimates, judgments and probable scenarios we considered, which could, in turn, have a material impact on our future financial statements.	Although we believe that the judgments and estimates discussed herein are reasonable, actual results could differ, and we may be exposed to losses or gains that could be materially different than those reflected in our accruals.
Our judgments and estimates in respect of self insurance of employee health and workers' compensation liabilities.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
We are primarily self-insured for group health insurance and workers compensation benefits provided to employees. We purchase stop-loss insurance to protect against annual health insurance claims per individual and at an aggregate level.	The accounting for our self-insured workers' compensation plan involves estimates and judgments to determine our ultimate liability related to reported claims and claims incurred but not reported. We consider our historical experience, severity factors, actuarial analysis and existing stop loss insurance in estimating our ultimate insurance liability. In addition, since recorded obligations represent the present value of expected payments over the life of the claims, decreases in the discount rate (used to compute the present value of the payments) would cause the estimated obligations to increase. Conversely, an increase in the discount rate would cause the estimated present value of expected payments to decrease. If our insurance claim trends were to differ significantly from our historic claim experience and as the discount rate changes, we would make a corresponding adjustment to our insurance reserves.	The rate used to discount future estimated workers' compensation liabilities is determined based on the U.S. Treasury bond rate with a five-year maturity date which resembles the remaining estimated life of the workers' compensation claims. A change in the discount rate of 1/4 of 1% would impact the workers' compensation liability and operating income by approximately $0.3 million.
Long Lived Assets.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
Long-lived assets other than goodwill and indefinite-lived intangible assets, which are separately tested for impairment, are evaluated for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. When evaluating long-lived assets for potential impairment, we first compare the carrying value of the asset to the asset’s estimated future cash flows (undiscounted and without interest charges). If the estimated future cash flows are less than the carrying value of the asset, we calculate an impairment loss. The impairment loss calculation compares the fair value, which may be based on estimated future cash flows (discounted and with interest charges) to the asset’s carrying value. We recognize an impairment loss if the amount of the asset’s carrying value exceeds the assets estimated fair value. If we recognize an impairment loss, the adjusted carrying amount of the asset becomes its new cost basis. For a depreciable long-lived asset, the new cost basis will be depreciated (amortized) over the remaining useful life of that asset.	Our impairment loss calculations contain uncertainties because they require management to make assumptions and apply judgment to estimate future cash flows and asset fair values, including forecasting useful lives of the assets and selecting the discount rate that reflects the risk inherent in future cash flows.	We have not made any material changes in our impairment loss assessment methodology. We do not believe there is a reasonable likelihood that there will be a material change in the estimates or assumptions we use to calculate long-lived asset impairment losses. However, if actual results are not consistent with our estimates and assumptions used in estimating future cash flows and asset fair values, we may be exposed to further losses from impairment charges that could be material.
Income Tax.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
We have substantial tax attributes available to offset the impact of future income taxes. We have a process for determining the need for a valuation allowance with respect to these attributes. The process includes an extensive review of both positive and negative evidence including our earnings history, future earnings, adverse recent occurrences, carry forward periods, an assessment of the industry and the impact of the timing differences. We expect to record a full statutory tax provision in future periods and, therefore, the benefit of any tax attributes realized will only affect future balances sheets and statements of cash flows. In accordance with GAAP, financial statements for interim periods include an income tax provision based on the effective tax rate expected to be incurred in the current year.	Inherent within the completion of our assessment of the need for a valuation allowance, we made significant judgments and estimates with respect to future operating results, timing of the reversal of deferred tax assets and our assessment of current market and industry factors. In order to determine the effective tax rate to apply to interim periods, estimates and judgments are made (by taxable jurisdiction) as to the amount of taxable income that may be generated, the availability of deductions and credits expected and the availability of net operating loss carry forwards or other tax attributes to offset taxable income. Making such estimates and judgments is subject to inherent uncertainties given the difficulty predicting such factors as future market conditions, customer requirements, the cost for key inputs such as energy and primary aluminum, overall operating efficiency and many other items. However, if among other things, (1) actual results vary from our forecasts due to one or more of the factors cited above or elsewhere in this Report, (2) income is distributed differently than expected among tax jurisdictions, (3) one or more material events or transactions occur which were not contemplated, or (4) certain expected deductions, credits or carry forwards are not available, it is possible that the effective tax rate for a year could vary materially from the assessments used to prepare the interim consolidated financial statements. See Note 7 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional discussion of these matters.	Although we believe that the judgments and estimates discussed herein are reasonable, actual results could differ, and we may be exposed to losses or gains that could be material. A change in our effective tax rate by 1% would have had an impact of approximately $0.4 million to net income for the year ended December 31, 2011.
Tax Contingencies.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
We use a “more likely than not” threshold for recognition of tax attributes that are subject to uncertainties and measure reserves in respect of such expected benefits based on their probability. A number of years may elapse before a particular matter, for which we have established a reserve, is audited and fully resolved or clarified. We adjust our tax reserve and income tax provision in the period in which actual results of a settlement with tax authorities differs from our established reserve, the statute of limitations expires for the relevant tax authority to examine the tax position or when more information becomes available. See Note 7 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report for additional information in respect of the recognition of tax attributes.	Our reserve for contingent tax liabilities reflects uncertainties because management is required to make assumptions and to apply judgment to estimate the exposures associated with our various filing positions. Our effective income tax rate is also affected by changes in tax law, the tax jurisdiction of new plants or business ventures, the level of earnings and the results of tax audits.	Although management believes that the judgments and estimates discussed herein are reasonable, actual results could differ, and we may be exposed to losses or gains that could be material. To the extent we prevail in matters for which reserves have been established, or are required to pay amounts in excess of our reserves, our effective income tax rate in a given financial statement period could be materially affected. An unfavorable tax settlement could require use of our cash and would result in an increase in our effective income tax rate in the period of resolution. A favorable tax settlement would be recognized as a reduction in our effective income tax rate in the period of resolution. Our liability related to uncertain tax positions at December 31, 2011 was $13.4 million.
Inventory Valuation.
We value our inventories at the lower of cost or market value. For the Fabricated Products segment, finished products, work-in-process and raw material inventories are stated on LIFO basis, and other inventories, principally operating supplies and repair and maintenance parts, are stated at average cost. Inventory costs consist of material, labor and manufacturing overhead, including depreciation. Abnormal costs, such as idle facility expenses, freight, handling costs and spoilage, are accounted for as current period charges. We determine the market value of our inventories based on the current replacement cost, by purchase or by reproduction, except that it does not exceed the net realizable value and it is not less than net realizable value reduced by an approximate normal profit margin.	Our estimate of market value of our inventories contains uncertainties because management is required to make assumptions and to apply judgment to estimate the selling price of our inventories, costs to complete our inventories and normal profit margin. Making such estimates and judgments is subject to inherent uncertainties given the difficulty predicting such factors as future commodity prices and market conditions.	Although we believe that the judgments and estimates discussed herein are reasonable, actual results could differ, and we may be exposed to losses or gains that could be material.
Notes and Call Options.

Description	Judgments and Uncertainties	Potential Effect if Actual Results Differ From Assumptions
The cash conversion feature of the Notes and the Call Options are accounted for as derivative instruments. We measure the value of the cash conversion feature as the difference between the estimated fair value of the Notes and the estimated fair value of the Notes without the cash conversion feature. We value the Notes based on the trading price of the Notes and we value the Notes without the cash conversion feature based on the present value of the series of fixed income cash flows under the Notes, with a mandatory redemption in 2015. We value the Call Options using a binomial lattice valuation model.	Significant inputs to the model include our stock price, risk-free rate, credit spread, dividend yield, expected volatility of our stock price, and probability of certain corporate events, all of which are observable inputs by market participants. Our estimates of fair value of the cash conversion feature of the Notes and the Call Options contain uncertainties given the difficulty in predicting factors such as the expected volatility of our stock price and the probability of certain corporate events. The primary driver of fair values of both the Call Option and the cash conversion feature of the Notes is our stock price.	An increase of $10 in our stock price would cause the net estimated fair values of the cash conversion feature and the Call Options to decrease by approximately $2 million. A decrease of $10 in our stock price would cause the net estimated fair values of the cash conversion feature and the Call Options to increase by approximately $3 million. We do not expect the net change in the fair value of these derivatives to have a material impact to our financial statements, over time.
Acquisition, Goodwill and Intangible Assets.
We accounted for acquisitions using the purchase method of accounting, which requires that the assets acquired and liabilities assumed to be recorded at the date of acquisition at their respective estimated fair values. We recognize goodwill as of the acquisition date, as a residual over the fair values of the identifiable net assets acquired. Goodwill is tested for impairment at least on an annual basis, as well as on an interim basis as warranted, at the time of events and changes in circumstances. Definite-lived intangible assets acquired will be amortized over the estimated useful lives of the respective assets, to reflect the pattern in which the economic benefits of the intangible assets are consumed. In the event the pattern cannot be reliably determined, we use a straight-line amortization method. Whenever events or changes in circumstances indicate that the carrying amount of the intangible assets may not be recoverable, the intangible assets will be reviewed for impairment.	The judgments made in determining the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can significantly impact our results of operations. Fair values and useful lives are determined based on, among other factors, the expected future period of benefit of the asset, the various characteristics of the asset and projected cash flows. As the determination of an asset’s fair value and useful life involves management making certain estimates and because these estimates form the basis for the determination of whether or not an impairment charge should be recorded, these estimates are considered to be critical accounting estimates.	We do not believe there is a reasonable likelihood that there will be a material change in the estimates or assumptions we use to calculate goodwill and intangible assets. However, if actual results are not consistent with our estimates and assumptions used in estimating future cash flows and fair values assigned to each class of assets acquired and liabilities assumed, we may be exposed to losses from impairment charges that could be material.

New Accounting Pronouncements

For a discussion of all recently adopted and recently issued but not yet adopted accounting pronouncements, see the section “New Accounting Pronouncements” from Note 1 of Notes to Consolidated Financial Statements included in Item 8. “Financial Statements and Supplementary Data” of this Report.

Available Information

We file Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, Proxy Statements, and other information with the SEC. You may inspect and, for a fee, copy any document that we file with the SEC at the SEC's Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the Public Reference Room. You may also obtain the documents that we file electronically from the SEC's website at http://www.sec.gov. Our filings with the SEC, as well as news releases, announcements of upcoming earnings calls

and events in which management participates or hosts with members of the investment community, and an archive of webcasts of such earnings calls and investor events, and related investor presentations, are also available on our website at http://www.kaiseraluminum.com. Information on our website is not incorporated into this Report.

EX-99.2

Exhibit 99.2

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

Part II Item 8.Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets

Statements of Consolidated Income

Statements of Consolidated Comprehensive (Loss) Income

Statements of Consolidated Stockholders’ Equity

Statements of Consolidated Cash Flows

Notes to Consolidated Financial Statements

Quarterly Financial Data (Unaudited)

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Kaiser Aluminum Corporation

Foothill Ranch, California

We have audited the accompanying consolidated balance sheets of Kaiser Aluminum Corporation and subsidiaries (the “Company”) as of December 31, 2011 and 2010, and the related consolidated statements of income, comprehensive (loss) income, stockholders' equity, and cash flows for each of the three years ended December 31, 2011. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Kaiser Aluminum Corporation and subsidiaries as of December 31, 2011 and 2010, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2011, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company's internal control over financial reporting as of December 31, 2011, based on the criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 29, 2012 expressed an adverse opinion on the Company's internal control over financial reporting because of a material weakness.

/s/ DELOITTE & TOUCHE LLP

Costa Mesa, California

February 29, 2012 (May 14, 2012 as to Note 15)

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

CONSOLIDATED BALANCE SHEETS

	December 31, 2011			December 31, 2010
	(In millions of dollars, except share and per share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$	49.8		$	135.6
Receivables:
Trade, less allowance for doubtful receivables of $0.9 at December 31, 2011 and $0.6 at December 31, 2010, respectively	98.9			83.0
Other	1.2			5.2
Inventories	205.7			167.5
Prepaid expenses and other current assets	78.9			80.1
Total current assets	434.5			471.4
Property, plant, and equipment — net	367.8			354.1
Net asset in respect of VEBA(s)	144.7			158.0
Deferred tax assets — net	226.9			245.3
Intangible assets — net	37.2			4.0
Goodwill	37.2			3.1
Other assets	72.3			83.0
Total	$	1,320.6		$	1,318.9
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	62.2		$	50.8
Accrued salaries, wages, and related expenses	30.9			31.1
Other accrued liabilities	41.0			42.0
Payable to affiliate	14.4			17.1
Long-term debt-current portion	1.3			1.3
Total current liabilities	149.8			142.3
Net liability in respect of VEBA	20.6			—
Long-term liabilities	126.0			134.7
Cash convertible senior notes	148.0			141.4
Other long-term debt	3.4			11.8
Total liabilities	447.8			430.2
Commitments and contingencies — Note 11
Stockholders’ equity:
Preferred stock, 5,000,000 shares authorized at both December 31, 2011 and December 31, 2010; no shares were issued and outstanding at December 31, 2011 and December 31, 2010	—			—
Common stock, par value $0.01, 90,000,000 shares authorized at both December 31, 2011 and at December 31, 2010; 19,253,185 shares issued and outstanding at December 31, 2011 and 19,214,451 shares issued and outstanding at December 31, 2010	0.2			0.2
Additional capital	998.4			987.1
Retained earnings	84.4			78.0
Common stock owned by Union VEBA subject to transfer restrictions, at reorganization value, 2,202,495 shares at December 31, 2011 and 3,523,980 shares at December 31, 2010	(52.9		)	(84.6		)
Treasury stock, at cost, 1,724,606 shares at December 31, 2011 and December 31, 2010	(72.3		)	(72.3		)
Accumulated other comprehensive loss	(85.0		)	(19.7		)
Total stockholders’ equity	872.8			888.7
Total	$	1,320.6		$	1,318.9

The accompanying notes to consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED INCOME

	Year Ended December 31,
	2011			2010			2009
	(In millions of dollars, except share and per share amounts)
Net sales	$	1,301.3		$	1,079.1		$	987.0
Costs and expenses:
Cost of products sold:
Cost of products sold, excluding depreciation, amortization and other items	1,158.9			946.8			766.4
Lower of cost or market inventory write-down	—			—			9.3
Impairment of investment in Anglesey	—			—			1.8
Restructuring costs and other (benefits) charges	(0.3		)	(0.3		)	5.4
Depreciation and amortization	25.2			19.8			16.4
Selling, administrative, research and development, and general	62.7			67.7			69.9
Other operating (benefits) charges, net	(0.2		)	4.0			(0.9		)
Total costs and expenses	1,246.3			1,038.0			868.3
Operating income	55.0			41.1			118.7
Other (expense) income:
Interest expense	(18.0		)	(11.8		)	—
Other income (expense), net	4.3			(4.2		)	(0.1		)
Income before income taxes	41.3			25.1			118.6
Income tax provision	(16.2		)	(13.1		)	(48.1		)
Net income	$	25.1		$	12.0		$	70.5
Earnings per common share, Basic:
Net income per share	$	1.32		$	0.61		$	3.51
Earnings per common share, Diluted:
Net income per share	$	1.32		$	0.61		$	3.51
Weighted-average number of common shares outstanding (000):
Basic	18,979			19,377			19,639
Diluted	18,979			19,377			19,639

The accompanying notes to consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED COMPREHENSIVE (LOSS) INCOME

	Year Ended December 31,
	2011			2010			2009
	(In millions of dollars, except share and per share amounts)
Net income	$	25.1		$	12.0		$	70.5
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial (loss) gain arising during the period	(110.6		)	25.5			66.3
Prior service cost arising during the period	—			—			(33.8		)
Reclassification adjustments:
Less: amortization of net actuarial loss	0.6			0.7			3.8
Less: amortization of prior service cost	4.2			4.2			1.6
Other comprehensive (loss) income relating to defined benefit pension plan and VEBAs	(105.8		)	30.4			37.9
Unrealized (loss) gain on available for sale securities	(0.1		)	0.1			—
Foreign currency translation adjustment	0.2			(0.5		)	(1.5		)
Other comprehensive (loss) income, before tax	(105.7		)	30.0			36.4
Income tax benefit (expense) related to items of other comprehensive (loss) income	40.4			(11.5		)	(14.3		)
Other comprehensive (loss) income, net of tax	(65.3		)	18.5			22.1
Comprehensive (loss) income	$	(40.2	)	$	30.5		$	92.6

The accompanying notes to consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED STOCKHOLDERS’ EQUITY

	Common Shares Outstanding		Common Stock		Additional Capital			Retained Earnings			Common Stock Owned by Union VEBA Subject to Transfer Restriction			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Total
	(In millions of dollars, except for shares)
BALANCE, December 31, 2008	20,044,913		$	0.2	$	958.6		$	34.1		$	(116.4	)	$	(28.1	)	$	(60.3	)	$	788.1
Net income	—		—		—			70.5			—			—			—			70.5
Other comprehensive income, net of tax																	22.1			22.1
Capital distribution by unconsolidated affiliate to its parent company	—		—		(0.1		)	—			—			—			—			(0.1		)
Issuance of non-vested shares to employees	196,829		—		—			—			—			—			—			—
Issuance of common shares to employees in lieu of cash bonus	15,674		—		0.3			—			—			—			—			0.3
Issuance of common shares to directors	3,734		—		0.1			—			—			—			—			0.1
Issuance of common shares to employees upon vesting of restricted stock units and performance shares	21,089		—		—			—			—			—			—			—
Cancellation of employee non-vested shares	(5,668	)	—		—			—			—			—			—			—
Cash dividends on common stock ($0.96 per share)	—		—		—			(19.6		)	—			—			—			(19.6		)
Tax deficiency upon vesting of non-vested shares and dividend payment on unvested shares expected to vest	—		—		(0.1		)	—			—			—			—			(0.1		)
Amortization of unearned equity compensation	—		—		9.0			—			—			—			—			9.0
BALANCE, December 31, 2009	20,276,571		$	0.2	$	967.8		$	85.0		$	(116.4	)	$	(28.1	)	$	(38.2	)	$	870.3
Net income			—		—			12.0			—			—			—			12.0
Other comprehensive income, net of tax																	18.5			18.5
Sale of Union VEBA shares by the Union VEBA, net of tax of $19.6	—		—		0.7			—			31.8			—			—			32.5
Issuance of warrants	—		—		14.3			—			—			—			—			14.3
Issuance of non-vested shares to employees	97,931		—		—			—			—			—			—			—
Issuance of common shares to directors	4,612		—		0.2			—			—			—			—			0.2
Issuance of common shares to employees upon vesting of restricted stock units and performance shares	4,934		—		—			—			—			—			—			—
Cancellation of employee non-vested shares	(5,968	)	—		—			—			—			—			—			—
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares	(11,729	)	—		(0.4		)	—			—			—			—			(0.4		)
Repurchase of common stock	(1,151,900	)	—		—			—			—			(44.2		)	—			(44.2		)
Cash dividends on common stock ($0.96 per share)	—		—		—			(19.0		)	—			—			—			(19.0		)
Amortization of unearned equity compensation	—		—		4.5			—			—			—			—			4.5
BALANCE, December 31, 2010	19,214,451		$	0.2	$	987.1		$	78.0		$	(84.6	)	$	(72.3	)	$	(19.7	)	$	888.7
Net income	—		$	—	$	—		$	25.1		$	—		$	—		$	—		$	25.1
Other comprehensive loss, net of tax	—		—		—			—			—			—			(65.3		)	(65.3		)
Sale of Union VEBA shares by the Union VEBA, net of tax of $25.0	—		—		8.8			—			31.7			—			—			40.5
Issuance of non-vested shares to employees	83,066		—		—			—			—			—			—			—
Issuance of common shares to directors	3,750		—		0.2			—			—			—			—			0.2
Issuance of common shares to employees upon vesting of restricted stock units and performance shares	17,444		—		—			—			—			—			—			—
Cancellation of employee non-vested shares	(2,889	)	—		—			—			—			—			—			—
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares	(62,637	)	—		(3.1		)	—			—			—			—			(3.1		)
Cash dividends on common stock ($0.96 per share)	—		—		—			(18.9		)	—			—			—			(18.9		)
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest					0.2															0.2
Amortization of unearned equity compensation	—		—		5.2			—			—			—			—			5.2
Reclassification relating to dividends on unvested equity awards	—		—		—			0.2			—			—			—			0.2
BALANCE, December 31, 2011	19,253,185		$	0.2	$	998.4		$	84.4		$	(52.9	)	$	(72.3	)	$	(85.0	)	$	872.8

The accompanying notes to consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

STATEMENTS OF CONSOLIDATED CASH FLOWS

	Year Ended December 31,
	2011			2010			2009
	(In millions of dollars)
Cash flows from operating activities:
Net income	$	25.1		$	12.0		$	70.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	23.0			19.5			16.4
Amortization of definite-lived intangible assets	2.2			0.3			—
Amortization of debt discount and debt issuance costs	8.6			4.5			—
Deferred income taxes	17.6			13.3			47.3
Excess tax (benefit) deficiency upon vesting of non-vested shares and dividend payment on unvested shares expected to vest	(0.2		)	—			0.1
Non-cash equity compensation	5.4			4.7			9.1
Net non-cash LIFO (benefit) charges and lower of cost or market inventory write-down	(7.1		)	16.5			18.0
Non-cash unrealized losses (gains) on derivative positions	25.9			5.5			(80.5		)
Amortization of option premiums (received) paid, net	(1.2		)	1.8			5.5
Non-cash impairment charges	—			4.6			2.3
Equity in income of unconsolidated affiliate, net of distributions	—			—			(1.9		)
Losses on disposition of property, plant and equipment	0.2			0.1			0.1
Non-cash net periodic benefit (income) costs	(5.7		)	5.1			5.3
Other non-cash changes in assets and liabilities	0.4			(0.7		)	0.2
Changes in operating assets and liabilities, net of effect of acquisition:
Trade and other receivables	(8.3		)	(1.2		)	30.1
Receivable from affiliate	—			0.2			11.6
Inventories (excluding LIFO adjustments and lower of cost or market write-down)	(24.5		)	(56.3		)	29.1
Prepaid expenses and other current assets	(2.9		)	(0.9		)	(2.0		)
Accounts payable	10.9			4.2			(2.5		)
Accrued liabilities	(1.5		)	0.4			(19.8		)
Payable to affiliate	(2.7		)	8.1			(18.5		)
Long-term assets and liabilities, net	(2.4		)	24.6			7.3
Net cash provided by operating activities	62.8			66.3			127.7
Cash flows from investing activities:
Capital expenditures	(32.5		)	(38.9		)	(59.2		)
Purchase of available for sale securities	(0.3		)	(4.4		)	—
Proceeds from disposal of property, plant and equipment	0.7			4.8			—
Cash payment for acquisition of manufacturing facility and related assets (net of $4.9 of cash received in connection with the acquisition in 2011)	(83.2		)	(9.0		)	—
Change in restricted cash	(1.0		)	1.1			18.5
Net cash used in investing activities	(116.3		)	(46.4		)	(40.7		)
Cash flows from financing activities:
Proceeds from issuance of cash convertible senior notes	—			175.0			—
Cash paid for financing costs in connection with issuance of cash convertible senior notes	—			(5.9		)	—
Purchase of call option in connection with issuance of cash convertible senior notes	—			(31.4		)	—
Proceeds from issuance of warrants	—			14.3			—
Repayment of capital lease	(0.1		)	—			—
Repayment of promissory notes	(8.3		)	(0.7		)	—
Borrowings under the revolving credit facility	—			—			111.6
Repayment of borrowings under the revolving credit facility	—			—			(147.6		)
Cash paid for financing costs in connection with the revolving credit facility	(2.1		)	(2.7		)	(1.2		)
Excess tax benefit (deficiency) upon vesting of non-vested shares and dividend payment on unvested shares expected to vest	0.2			—			(0.1		)
Repurchase of common stock to cover employees' tax withholdings upon vesting of non-vested shares	(3.1		)	—			—
Repurchase of common stock	—			(44.2		)	—
Cash dividend paid to stockholders	(18.9		)	(19.0		)	(19.6		)
Net cash (used in) provided by financing activities	(32.3		)	85.4			(56.9		)
Net (decrease) increase in cash and cash equivalents during the period	(85.8		)	105.3			30.1
Cash and cash equivalents at beginning of period	135.6			30.3			0.2
Cash and cash equivalents at end of period	$	49.8		$	135.6		$	30.3

The accompanying notes to consolidated financial statements are an integral part of these statements.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

1. Summary of Significant Accounting Policies

Organization and Nature of Operations. Kaiser Aluminum Corporation (together with its subsidiaries, unless the context otherwise requires, the “Company”) specializes in the production of semi-fabricated specialty aluminum products, with its operations consisting of one reportable segment in the aluminum industry, Fabricated Products. The Company also owns a 49% non-controlling interest in Anglesey Aluminium Limited (“Anglesey”), which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales. See Note 15 for additional information regarding the Company's reportable segment and its other business units.

Recent Acquisitions. In January 2011, the Company acquired the manufacturing facility and related assets of Alexco, L.L.C. (“Alexco”) in Chandler, Arizona (the “Chandler, Arizona (Extrusion) facility”). The Chandler, Arizona (Extrusion) facility manufactures hard alloy extrusions for the aerospace industry and is a well established supplier of aerospace extrusions. The acquisition positions the Company in a significant market segment that provides a natural complement to its product offerings for aerospace applications (see Note 5).

In August 2010, the Company acquired the manufacturing facility and related assets of Nichols Wire, Incorporated (“Nichols”) in Florence, Alabama (the “Florence, Alabama facility”). The Florence, Alabama facility manufactures bare mechanical alloy wire products, nails and aluminum rod and expands the Company's offerings of small diameter rod, bar and wire products to the Company's core end market segments for aerospace and high strength products, general engineering products and extrusions for automotive applications (see Note 5).

Principles of Consolidation and Basis of Presentation. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, and are prepared in accordance with United States generally accepted accounting principles (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”). Intercompany balances and transactions are eliminated. The consolidated financial statements include the results of manufacturing facilities acquired by the Company from the effective date of each acquisition.

The Company suspended the use of the equity method of accounting with respect to its ownership in Anglesey commencing in the quarter ended September 30, 2009. As a result, the Company did not record equity in income from Anglesey for any of the periods presented herein. The carrying amount of the Company's investment in Anglesey was zero at both December 31, 2011 and December 31, 2010. The Company does not anticipate resuming the use of the equity method of accounting with respect to its investment in Anglesey during the next 12 months.

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses during the reporting period. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of the Company’s consolidated financial statements; accordingly, it is possible that the actual results could differ from these estimates and assumptions, which could have a material effect on the reported amounts of the Company’s consolidated financial position and results of operations.

Recognition of Sales. Sales are generally recognized on a gross basis when title, ownership and risk of loss pass to the buyer and collectability is reasonably assured. A provision for estimated sales returns from, and allowances to, customers is made in the same period as the related revenues are recognized, based on historical experience or the specific identification of an event necessitating a reserve.

From time to time, in the ordinary course of business, the Company may enter into agreements with customers in which the Company, in return for a fee, agrees to reserve certain amounts of its existing production capacity for the customer, defer an existing customer purchase commitment into future periods and reserve certain amounts of its expected production capacity in those periods for the customer, or cancel or reduce existing commitments under existing contracts. These agreements may have terms or impact periods exceeding one year.

Certain of the capacity reservation and commitment deferral agreements provide for periodic, such as quarterly or annual, billing for the duration of the contract. For capacity reservation agreements, the Company recognizes revenue ratably over the period of the capacity reservation. Accordingly, the Company may recognize revenue prior to billing reservation fees. Unbilled receivables are included within Trade receivables on the Company's Consolidated Balance Sheets (see Note 2). For commitment deferral agreements, the Company recognizes revenue upon the earlier occurrence of the related sale of product or the end of the commitment period. In connection with other agreements, the Company may collect funds from customers in advance of the periods for which (i) the production capacity is reserved, (ii) commitments are deferred, (iii) commitments are

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

reduced or (iv) performance is completed, in which event the recognition of revenue is deferred until the fee is earned. Any unearned fees are included within Other accrued liabilities or Long-term liabilities, as appropriate, on the Company's Consolidated Balance Sheets (see Note 2).

Stock-Based Compensation. Stock-based compensation in the form of service-based awards is provided to executive officers, certain employees and directors, and is accounted for at fair value. The Company measures the cost of services received in exchange for an award of equity instruments based on the grant-date fair value of the award and the number of awards expected to ultimately vest. The cost of an award is recognized as an expense over the requisite service period of the award on a straight-line basis. The Company has elected to amortize compensation expense for equity awards with graded vesting using the straight-line method (see Note 10).

The Company also grants performance-based awards to executive officers and other key employees. These awards are subject to performance requirements pertaining to the Company's economic value added (“EVA”) performance, measured over specified three-year performance periods. The EVA is a measure of the excess of the Company's adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year, as defined in the Company's annual long-term incentive (“LTI”) programs. The number of performance shares, if any, that will ultimately vest and result in the issuance of common shares depends on the average annual EVA achieved for the specified three-year performance periods. The fair value of performance-based awards is measured based on the most probable outcome of the performance condition, which is estimated quarterly using the Company's forecast and actual results. The Company expenses the fair value, after assuming an estimated forfeiture rate, over the specified three-year performance periods on a ratable basis (see Note 10).

Shipping and Handling Costs. Shipping and handling costs are recorded as a component of Cost of products sold excluding depreciation, amortization and other items.

Advertising Costs. Advertising costs, which are included in Selling, administrative, research and development, and general, are expensed as incurred. Advertising costs for 2011, 2010 and 2009 were $0.4, $0.3, and $0.4, respectively.

Research and Development Costs. Research and development costs, which are included in Selling, research and development, and general, are expensed as incurred. Research and development costs for 2011, 2010 and 2009 were $6.1, $4.9, and $4.4, respectively.

Major Maintenance Activities. All of the major maintenance costs are accounted for using the direct expensing method.

Cash and Cash Equivalents. The Company considers only those short-term, highly liquid investments with original maturities of 90 days or less when purchased to be cash equivalents. The Company’s cash equivalents consist primarily of funds in savings accounts, demand notes, money market accounts and other highly liquid investments, which are classified within Level 1 of the fair value hierarchy.

Restricted Cash. The Company is required to keep certain amounts on deposit relating to workers’ compensation and other agreements. The Company accounts for such deposits as restricted cash (see Note 2).

Trade Receivables and Allowance for Doubtful Accounts. Trade receivables primarily consist of amounts billed to customers for products sold. Accounts receivable are generally due within 30 days. For the majority of its receivables, the Company establishes an allowance for doubtful accounts based upon collection experience and other factors. On certain other receivables where the Company is aware of a specific customer’s inability or reluctance to pay, an allowance for doubtful accounts is established against amounts due, to reduce the net receivable balance to the amount the Company reasonably expects to collect. However, if circumstances change, the Company’s estimate of the recoverability of accounts receivable could be different. Circumstances that could affect the Company’s estimates include, but are not limited to, customer credit issues and general economic conditions. Accounts are written off once deemed to be uncollectible. Any subsequent cash collections relating to accounts that have been previously written off are typically recorded as a reduction to total bad debt expense in the period of payment.

Inventories. Inventories are stated at the lower of cost or market value. Finished products, work-in-process and raw material inventories are stated on the last-in, first-out (“LIFO”) basis. The Company recorded net non-cash LIFO inventory (benefits) charges of approximately $(7.1), $16.5 and $8.7 during 2011, 2010 and 2009, respectively. These amounts are primarily a result of changes in metal prices and changes in inventory volumes. The excesses of current cost over the stated LIFO value of inventory at December 31, 2011 and December 31, 2010 were $29.4 and $36.4, respectively. Other inventories, principally operating supplies and repair and maintenance parts, are stated at average cost. Inventory costs consist of material, labor and manufacturing overhead, including depreciation. Abnormal costs, such as idle facility expenses, freight, handling costs and spoilage, are accounted for as current period charges. All of the Company's inventories at December 31, 2011 and December 31, 2010 were included in the Fabricated Products segment (see Note 2 for the components of inventories).

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Property, Plant, and Equipment - Net. Property, plant and equipment is recorded at cost (see Note 2). Construction in progress is included within Property, plant, and equipment - net in the Consolidated Balance Sheets. Interest related to the construction of qualifying assets is capitalized as part of the construction costs. The aggregate amount of interest capitalized is limited to the interest expense incurred in the period. The amount of interest expense capitalized as construction in progress was $1.3, $2.8 and $2.7 during 2011, 2010 and 2009, respectively.

Depreciation is computed using the straight-line method at rates based on the estimated useful lives of the various classes of assets. Capital lease assets and leasehold improvements are depreciated on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term. The principal estimated useful lives, are as follows:

	Range (in years)
Land improvements	3	-	25
Buildings and leasehold improvements	15	-	45
Machinery and equipment	1	-	24
Capital lease assets	3

Depreciation expense is not included in Cost of products sold, excluding depreciation, amortization and other items, but is included in Depreciation and amortization on the Statements of Consolidated Income. For 2011, 2010 and 2009, the Company recorded depreciation expense of $22.7, $19.4 and $16.2, respectively, relating to the Company's operating facilities in its Fabricated Products segment. An immaterial amount of depreciation expense was also recorded in the Company's Corporate and Other for all periods presented herein.

Property, plant and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset or group of assets may not be recoverable. The Company regularly assesses whether events and circumstances with the potential to trigger impairment have occurred and relies on a number of factors, including operating results, business plans, economic projections, and anticipated future cash flow, to make such assessments. The Company uses an estimate of the future undiscounted cash flows of the related asset or asset group over the estimated remaining life of such asset(s) in measuring whether the asset(s) are recoverable. Measurement of the amount of impairment, if any, is based on the difference between the carrying value of the asset(s) and the estimated fair value of such asset(s). Fair value is determined through a series of standard valuation techniques.

During 2010, the Company recorded a $2.0 impairment charge to write down the carrying amount of idled equipment to represent its estimated fair value and a $1.9 impairment charge in connection with the sale of its Greenwood, South Carolina facility. Such asset impairment charges are included in Other operating charges (benefits), net in the Statements of Consolidated Income and are included in the Fabricated Products segment. Further, the Company also recorded additional impairment charges relating to property, plant and equipment in connection with its restructuring plans (see Note 16).

Property, plant and equipment held for future development are presented as idled assets. Such assets are evaluated for impairment on a held-and-used basis. Depreciation expense is not adjusted when assets are temporarily idled. See “Fair Values of Non-financial Assets and Liabilities” in Note 13 for additional information regarding idled assets included in property, plant and equipment.

Available for Sale Securities. Included in Other assets are certain marketable debt and equity securities, classified as available for sale securities (see Note 2). Such securities are invested in various investment funds and managed by a third-party trust in connection with the Company's deferred compensation program (see Note 8). Such securities are recorded at fair value (see “Available for Sale Securities” in Note 13), with net unrealized gains and losses, net of income taxes, reflected in other comprehensive earnings as a component of Stockholders' equity.

Deferred Financing Costs. Costs incurred in connection with debt financing are deferred and amortized over the estimated term of the related borrowing. Such amortization is included in Interest expense and may be capitalized as part of construction in progress (see Note 2).

Goodwill and Intangible Assets. Goodwill is tested for impairment on an annual basis, as well as on an interim basis, as warranted, at the time of relevant events and changes in circumstances. Intangible assets with definite lives are initially recognized at fair value and subsequently amortized over the estimated useful lives to reflect the pattern in which the economic benefits of the intangible assets are consumed. In the event the pattern cannot be reliably determined, the Company uses a straight-line amortization method. Whenever events or changes in circumstances indicate that the carrying amount of the intangible assets may not be recoverable, the intangible assets are reviewed for impairment.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

The Company's accounting policy was to perform its annual goodwill impairment test during the third quarter, with the most recent annual goodwill impairment test completed as of September 1, 2011. During the fourth quarter of 2011, the Company elected to change its accounting policy to begin performing the annual goodwill impairment test on December 1 in order to better align its impairment testing procedures with the completion of the Company's annual financial and strategic planning process, which includes the preparation of long-term cash flow projections. The Company believes this change in accounting principle is preferable because these long-term cash flow projections are a key component in its annual goodwill impairment test and the change allows for the use of more recent financial information. This change did not accelerate, delay, avoid or cause a goodwill impairment charge and does not result in adjustments to our consolidated financial statements when applied retrospectively. During 2011, the Company tested its goodwill for impairment as of September 1, 2011 and December 1, 2011, and concluded there was no impairment of the carrying value of goodwill. During 2010, the Company concluded there was no impairment of the carrying value of goodwill.

Conditional Asset Retirement Obligations (“CAROs”). The Company has CAROs at several of its fabricated products facilities. The vast majority of such CAROs consist of incremental costs that would be associated with the removal and disposal of asbestos (all of which is believed to be fully contained and encapsulated within walls, floors, roofs, ceilings or piping) at certain of the Company’s older facilities if such facilities were to undergo major renovation or be demolished. The Company, in accordance with Accounting Standards Codification ("ASC") Topic 410, Asset Retirement and Environmental Obligations, estimates incremental costs for special handling, removal and disposal costs of materials that may or will give rise to CAROs and then discounts the expected costs back to the current year using a credit-adjusted, risk-free rate. The Company recognizes liabilities and costs for CAROs even if it is unclear when or if CAROs will be triggered. When it is unclear when or if CAROs will be triggered, the Company uses probability weighting for possible timing scenarios to determine the probability-weighted amounts that should be recognized in the Company’s consolidated financial statements (see Note 13).

Self Insurance of Employee Health and Workers' Compensation Liabilities. The Company is primarily self-insured for group health insurance and workers' compensation benefits provided to employees. The Company purchases stop-loss insurance to protect against annual health insurance claims per individual and at an aggregate level. Self insurance liabilities are estimated for claims incurred-but-not-paid based on judgment, using the Company's historical claim data and information and analysis provided by actuarial and claim advisors, the Company's insurance carriers and other professionals. The Company accounts for accrued liability relating to workers' compensation claims on a discounted basis. The discount rates used in estimating the liabilities were 1.00% and 4.75% and the undiscounted workers' compensation liabilities were $24.3 and $20.6 at December 31, 2011 and December 31, 2010, respectively. The accrued liabilities for health insurance and workers' compensation is included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2).

Environmental Contingencies. With respect to environmental loss contingencies, the Company records a loss contingency whenever a contingency is probable and reasonably estimatable. Accruals for estimated losses from environmental remediation obligations are generally recognized at no later than the completion of the remedial feasibility study. Such accruals are adjusted as information develops or circumstances change. Costs of future expenditures for environmental remediation obligations are not discounted to their present value. Accruals for expected environmental costs are included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2). Environmental expense relating to continuing operations is included in Cost of products sold, excluding depreciation, amortization and other items in the Statements of Consolidated Income. Environmental expense relating to non-operating locations is included in Selling, administrative, research and development, and general in the Statements of Consolidated Income.

Derivative Financial Instruments. Hedging transactions using derivative financial instruments are primarily designed to mitigate the Company's exposure to changes in prices for certain products sold and consumed by the Company and, to a lesser extent, to mitigate the Company's exposure to changes in foreign currency exchange rates. From time to time, the Company also enters into hedging arrangements in connection with financing transactions to mitigate financial risks.

The Company does not utilize derivative financial instruments for trading or other speculative purposes. The Company's derivative activities are initiated within guidelines established by management and approved by the Company's Board of Directors. Hedging transactions are executed centrally on behalf of all of the Company's business units to minimize transaction costs, monitor consolidated net exposures and allow for increased responsiveness to changes in market factors.

The Company recognizes all derivative instruments as assets or liabilities in its Consolidated Balance Sheets and measures these instruments at fair value by “marking-to-market” all of its hedging positions at each period's end (see Note 13). Because the Company does not meet the documentation requirements for hedge (deferral) accounting, unrealized and realized gains and losses associated with hedges of operational risks are reflected as a reduction or increase, respectively, in Cost of products sold, excluding depreciation, amortization and other items, and unrealized and realized gains and losses relating to hedges of financing transactions are reflected as a component of Other income (expense) (see Note 18). See Note 12 for additional information about realized and unrealized gains and losses relating to the Company's derivative financial instruments.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Fair Value Measurement. The Company applies the provisions of Accounting Standards Update (“ASU”) Topic 820, Fair Value Measurements and Disclosures (“ASC 820”), in measuring the fair value of its derivative contracts, plan assets invested by certain of the Company’s employee benefit plans and its cash convertible senior notes (see Note 13).

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 establishes a fair value hierarchy that distinguishes between (i) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (ii) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Level 1 — Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

• Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3 — Inputs that are both significant to the fair value measurement and unobservable.

Income Taxes. Deferred income taxes reflect the future tax effect of temporary differences between the carrying amount of assets and liabilities for financial and income tax reporting and are measured by applying statutory tax rates in effect for the year during which the differences are expected to reverse. In accordance with ASC Topic 740, Income Taxes, the Company uses a “more likely than not” threshold for recognition of tax attributes that are subject to uncertainties and measures any reserves in respect of such expected benefits based on their probability. Deferred tax assets are reduced by a valuation allowance to the extent it is more likely than not that the deferred tax assets will not be realized (see Note 7).

Earnings per Share. ASC Topic 260, Earnings Per Share (“ASC 260”), defines unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) as participating securities and requires inclusion of such securities in the computation of earnings per share pursuant to the two-class method. ASC 260 mandates the application of the foregoing principles to all financial statements issued for fiscal years beginning after December 2008 and requires retrospective application.

Basic earnings per share is computed by dividing distributed and undistributed earnings allocable to common shares by the weighted-average number of common shares outstanding during the applicable period. The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The shares owned by a voluntary employee’s beneficiary association (“VEBA”) for the benefit of certain union retirees, their surviving spouses and eligible dependents (the “Union VEBA”) that are subject to transfer restrictions, while treated in the Consolidated Balance Sheets as being similar to treasury stock (i.e., as a reduction in Stockholders’ equity), are included in the computation of basic weighted-average number of common shares outstanding because such shares were irrevocably issued and have full dividend and voting rights. Diluted earnings per share is calculated as the more dilutive result of computing earnings per share under: (i) the treasury stock method or (ii) the two-class method (see Note 14).

Concentration of Credit Risk. Financial arrangements which potentially subject the Company to concentrations of credit risk consist of metal, currency, electricity and natural gas derivative contracts, certain cash-settled call options that the Company purchased in March 2010 (the “Call Options”) (see Note 3), and arrangements related to the Company's cash equivalents. If the market value of the Company's net commodity and currency derivative positions with certain counterparties exceeds the applicable threshold, if any, the counterparty is required to post margin by transferring cash collateral in excess of the threshold to the Company. Conversely, if the market value of these net derivative positions falls below a specified threshold, the Company is required to post margin by transferring cash collateral below the threshold to certain counterparties. At both December 31, 2011 and December 31, 2010, the Company had no margin deposits with or from its counterparties.

The Company is exposed to credit loss in the event of nonperformance by counterparties on derivative contracts used in hedging activities as well as failure of counterparties to return cash collateral previously transferred to the counterparties. The counterparties to the Company's derivative contracts are major financial institutions, and the Company does not expect nonperformance by any of its counterparties.

The Company places its cash in bank deposits and money market funds with high credit quality financial institutions which invest primarily in commercial paper and time deposits of prime quality, short-term repurchase agreements, and U.S.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

government agency notes. The Company has not experienced losses on its temporary cash investments.

Leases. For leases that contain predetermined fixed escalations of the minimum rent, the Company recognizes the related rent expense on a straight-line basis from the date it takes possession of the property to the end of the initial lease term. The Company records any difference between the straight-line rent amounts and the amount payable under the lease as part of deferred rent, in Other accrued liabilities or Long-term liabilities, as appropriate. Deferred rent for all periods presented was not material.

Foreign Currency. One of the Company’s foreign subsidiaries uses the local currency as its functional currency; its assets and liabilities are translated at exchange rates in effect at the balance sheet date; and its statement of operations is translated at weighted-average monthly rates of exchange prevailing during the year. Resulting translation adjustments are recorded directly to a separate component of stockholders’ equity in accordance with ASC Topic 830, Foreign Currency Matters. Where the U.S. dollar is the functional currency of a foreign facility or subsidiary, re-measurement adjustments are recorded in Other income (expense). At both December 31, 2011 and December 31, 2010, the amount of translation adjustment relating to the foreign subsidiary using local currency as its functional currency was immaterial.

New Accounting Pronouncements. In December 2010, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2010-28, Intangibles - Goodwill and Other, When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts (“ASU 2010-28”). ASU 2010-28 amends Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts. For those reporting units, an entity is required to perform Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists. In determining whether it is more likely than not that a goodwill impairment exists, an entity should consider whether there are any events or circumstances that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The adoption of ASU 2010-28 in the quarter ending March 31, 2011 did not have an impact on the Company's consolidated financial statements.

ASU No. 2010-29, Business Combinations, Disclosure of Supplementary Pro Forma Information for Business Combinations (“ASU 2010-29”), was issued in December 2010 to provide clarification regarding pro forma revenue and earnings disclosure requirements for business combinations. ASU 2010-29 specifies that if a public entity presents comparative financial statements, the entity should disclose only revenue and earnings of the combined entity as though the business combination(s) that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period. This ASU also expands the supplemental pro forma disclosures to include a description of the nature and amount of material, nonrecurring pro forma adjustments directly attributable to the business combination included in the reported pro forma revenue and earnings. The Company adopted ASU 2010-29 during the first interim reporting period of 2011 as it relates to pro forma disclosure of the Company's acquisition of the Chandler, Arizona (Extrusion) facility, effective January 1, 2011 (see Note 5).

ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), was issued in May 2011. This ASU represents the converged guidance of the FASB and the International Accounting Standards Board on fair value measurement. ASU 2011-04 sets forth common requirements for measuring fair value and for disclosing information about fair value measurements, including a consistent meaning of the term “fair value.” The provisions in this ASU are to be applied prospectively. For public entities, this ASU becomes effective during interim and annual periods beginning after December 15, 2011. Early adoption by public entities is not permitted. The Company expects to adopt the provisions of ASU 2011-04 for the interim period ending March 31, 2012 and does not anticipate the adoption of this ASU to have a material impact on its consolidated financial statements.

ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”), was issued in June 2011 to allow an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income in either a single continuous statement of comprehensive income or two separate but consecutive statements. Under either option, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. ASU 2011-05 eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders' equity. ASU 2011-05 does not change the items that are required to be reported in other comprehensive income or the timing to reclassify an item from other comprehensive income to net income and is required to be applied retrospectively. For public entities, this ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2011. Early adoption is permitted. The Company adopted the provisions of ASU 2011-05 for the fiscal year ending December 31, 2011 and applied the two-statement approach, presenting components of net income and total net income in the statement of income and the components and total of other comprehensive income along with a total for comprehensive income in the statement of other comprehensive income.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

ASU No. 2011-08, Testing Goodwill for Impairment ("ASU 2011-08"), was issued in September 2011 to simplify the testing for goodwill impairment for both public and nonpublic entities. ASU 2011-08 permits an entity to first assess qualitative factors to determine whether it is "more likely than not" that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The more-likely-than-not threshold is defined as having a likelihood of more than 50%. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted. The Company adopted the provisions of ASU 2011-08 for the interim period ending September 30, 2011. The adoption of ASU 2011-08 did not have a material impact on the Company's consolidated financial statements.

ASU No. 2011-09, Disclosures about an Employer's Participation in a Multiemployer Plan ("ASU 2011-09"), was issued in September 2011 and requires employers to provide additional disclosures regarding their participation in multiemployer pension plans to increase the transparency of their participation and awareness of the commitments and risks involved in participating in such plans. While previous rules require primarily disclosures relating to employers' historical contributions to the plans, ASU 2011-09 requires employers to disclose, among other things, (i) the amount of employer contributions made to each significant plan and to all plans in the aggregate, (ii) whether the employer's contributions represent more than 5% of total contributions to the plan, (iii) whether any such plans are subject to a funding improvement plan, (iv) the expiration dates of collective bargaining agreements and any minimum funding arrangements, and (v) the nature and effect of any changes affecting the comparability of any period in which a statement of income is presented. ASU 2011-09 applies to nongovernmental entities that participate in multiemployer plans and is effective for annual periods for fiscal years ending after December 15, 2011. Early adoption is permitted. ASU 2011-09 is to be applied retrospectively for all prior periods presented. The Company adopted the provisions of ASU 2011-09 for the fiscal year ending December 31, 2011. See Note 9 for detailed disclosure regarding the Company's participation in various multiemployer pension plans.

ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities ("ASU 2011-11"), was issued in November 2011. This ASU require an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effect of those arrangements on its financial position. An entity is required to adopt ASU 2011-11for reporting periods beginning on or after January 1, 2013. The Company does not anticipate the adoption of ASU 2011-11 to have a material impact on its financial statements.

ASU No. 2011-12, Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05 ("ASU 2011-12"), was issued in December 2011 to defer the requirement under ASU 2011-05 to present reclassification adjustments in the Statement of Consolidated Income and does not affect the effective date of any other requirements under ASU 2011-05. The Company has adopted the new disclosure requirement in ASU 2011-05 to disclose the components and total of other comprehensive income as its own separate statement and deferred the disclosure requirement relating to reclassification adjustments as permitted under ASU 2011-12.

2. Supplemental Balance Sheet Information

	December 31, 2011			December 31, 2010
Trade Receivables.
Billed trade receivables	$	98.9		$	82.5
Unbilled trade receivables — Note 1	0.9			1.1
Trade receivables, gross	99.8			83.6
Allowance for doubtful receivables	(0.9		)	(0.6		)
Trade receivables, net	$	98.9		$	83.0

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Inventories.
Finished products	$	75.9	$	53.8
Work in process	57.5		49.6
Raw materials	58.1		50.9
Operating supplies and repairs and maintenance parts	14.2		13.2
Total	$	205.7	$	167.5

Prepaid Expenses and Other Current Assets.
Current derivative assets — Notes 12 and 13	$	—	$	22.1
Current deferred tax assets	63.0		46.8
Current portion of option premiums paid - Notes 12 and 13	0.4		5.6
Short-term restricted cash	7.8		0.9
Prepaid taxes	3.8		1.3
Prepaid expenses	3.9		3.4
Total	$	78.9	$	80.1

Property, Plant and Equipment.
Land and land improvements	$	22.6		$	23.3
Buildings and leasehold improvements	45.9			43.5
Machinery and equipment	356.7			338.0
Construction in progress	24.1			7.7
Active property, plant and equipment, gross	449.3			412.5
Accumulated depreciation	(86.9		)	(63.9		)
Active property, plant, and equipment, net	362.4			348.6
Idled equipment	5.4			5.5
Property, plant, and equipment, net	$	367.8		$	354.1

Other Assets.
Derivative assets — Notes 12 and 13	$	46.2	$	50.8
Option premiums paid — Notes 12 and 13	0.1		0.6
Restricted cash	10.4		16.3
Long-term income tax receivable	2.8		2.9
Deferred financing costs	7.8		7.7
Available for sale securities	4.9		4.6
Other	0.1		0.1
Total	$	72.3	$	83.0

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Other Accrued Liabilities.
Current derivative liabilities — Notes 12 and 13	$	14.8	$	8.9
Current portion of option premiums received — Notes 12 and 13	0.1		7.0
Current portion of income tax liabilities	—		1.1
Accrued income taxes and taxes payable	2.6		1.8
Accrued annual VEBA contribution	—		2.1
Accrued freight	2.4		1.9
Short-term environmental accrual — Note 11	1.2		1.1
Accrued interest	2.3		2.1
Short-term deferred revenue — Note 1	13.5		10.8
Other	4.1		5.2
Total	$	41.0	$	42.0

Long-term Liabilities.
Derivative liabilities — Notes 12 and 13	$	55.5	$	62.2
Option premiums received — Notes 12 and 13	0.1		0.3
Income tax liabilities	13.4		12.9
Workers’ compensation accruals	20.8		15.9
Long-term environmental accrual — Note 11	20.8		19.1
Long-term asset retirement obligations	3.8		3.8
Long-term deferred revenue - Note 1	3.3		13.2
Deferred compensation liability	5.1		4.9
Other long-term liabilities	3.2		2.4
Total	$	126.0	$	134.7

3. Cash Convertible Senior Notes and Related Transactions

Indenture. In March 2010, the Company issued $175.0 principal amount of 4.5% Cash Convertible Senior Notes due April 2015 (the "Notes"). The Notes pay interest semi-annually in arrears on April 1 and October 1. The Company accounts for the cash conversion feature of the Notes (the “Bifurcated Conversion Feature”) as a separate derivative instrument with the fair value on the issuance date equaling the original issue discount ("OID") for purposes of accounting for the debt component of the Notes. Additionally, the initial purchasers' discounts and transaction fees of $5.9 were capitalized as deferred financing costs. The effective interest rate of the Notes is approximately 11% per annum, taking into account the amortization of the OID and deferred financing costs.

The following tables provide additional information regarding the Notes:

	December 31, 2011			December 31, 2010
Principal amount	$	175.0		$	175.0
Less: unamortized issuance discount	$	(27.0	)	(33.6		)
Carrying amount, net of discount	$	148.0		$	141.4

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended
	December 31,
	2011		2010
Contractual coupon interest	$	8.4	$	6.0
Amortization of discount and deferred financing costs	7.8		5.3
Total interest expense1	$	16.2	$	11.3

____________

¹  A portion of the interest relating to the Notes is capitalized as Construction in progress.

See Note 13 for information relating to the estimated fair value of the Notes.

Holders may convert their Notes at any time on or after January 1, 2015. The Notes' conversion rate is subject to adjustment based on the occurrence of certain events, including, but not limited to (i) the payment of quarterly cash dividends on the Company's common stock in excess of $0.24 per share, (ii) certain other stock or cash dividends, (iii) the issuance of certain rights, options or warrants, (iv) the effectuation of share splits or combinations, (v) certain distributions of property, and (vi) certain issuer tender or exchange offers. The Company's quarterly dividend paid in February 2012 exceeded $0.24 per share (see Note 21), which caused the conversion rate to increase slightly to 20.6991 shares per $1,000 principal amount of the Notes and the equivalent conversion price to decrease slightly to approximately $48.31 per share.

Holders of the Notes can require the Company to repurchase the Notes at a price equal to 100% of the principal amount plus any accrued and unpaid interest following a fundamental change. Fundamental changes include, but are not limited to, (i) certain ownership changes, (ii) certain recapitalizations, mergers and dispositions, (iii) shareholders' approval of any plan or proposal for the liquidation or dissolution of the Company, and (iv) failure of the Company's common stock to be listed on certain stock exchanges. Additionally, holders may convert their Notes before January 1, 2015, only in certain limited circumstances determined by (i) the trading price of the Notes, (ii) the occurrence of specified corporate events, or (iii) the market price of the Company's common stock. For example, if the Company's closing stock price exceeds $62.80 for 20 trading days during a period of 30 consecutive trading days ending on a calendar quarter, the Notes may be converted by one or more holders. The Company believes in this circumstance, the market value of the Notes will exceed the value of shares into which they can convert, making such an early conversion unlikely. No fundamental changes nor circumstances that could allow early conversion existed as of December 31, 2011 or the date hereof. The Notes are not convertible into the Company’s common stock or any other securities under any circumstances, but instead will be settled in cash.

Convertible Note Hedge Transactions. In March 2010, the Company purchased Call Options that have an exercise price equal to the conversion price of the Notes and an expiration date equal to the maturity or earlier conversion date of the Notes. The Call Options and the Notes have substantially similar anti-dilution adjustment provisions, including adjustments for payments of quarterly cash dividends in excess of $0.24 per share. Mirroring anti-dilution adjustments for the Notes, the February 2012 dividend payment caused the Call Options' exercise price to be adjusted downward slightly to approximately $48.31 per share, and the number of shares into which the Call Options can convert to be increased by an immaterial amount. Because the Call Options are settled in cash, if the market price per share of the Company's common stock at the time of cash conversion of any Notes is above the strike price of the Call Options, the Company is entitled to receive from the counterparties to the Call Options an aggregate amount equaling the amount of cash that the Company would be required to deliver to the holders of the converted Notes, less the principal amount thereof.

In March 2010, the Company also sold net-share-settled warrants (the “Warrants”) relating to approximately 3.6 million shares of the Company's common stock. The Warrants cannot be exercised prior to the expiration date of July 1, 2015 and are subject to certain anti-dilution adjustments, including adjustments for payments of quarterly cash dividends in excess of $0.24 per share. The February 2012 quarterly dividend payment triggered an anti-dilution provision which caused a slight downward adjustment to the Warrants' exercise price (to approximately $61.35 per share) and an immaterial increase in the number of shares to which the Warrants relate. At expiration, if the market price per share of the Company's common stock exceeds the strike price of the Warrants, the Company will be obligated to issue shares of the Company's common stock having a value equal to such excess. The Warrants meet the definition of derivatives but are not subject to fair value accounting because they are indexed to the Company's common stock and meet the requirement to be classified as equity instruments.

The Call Options and Warrant transactions are separate transactions and are not part of the terms of the Notes and do not affect the rights of holders under the Notes.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

4. Secured Debt and Credit Facilities

Secured credit facility and other long-term secured debt consisted of the following:

	December 31, 2011			December 31, 2010
Revolving credit facility	$	—		$	—
Other	4.7			13.1
Total	4.7			13.1
Less — Current portion	(1.3		)	(1.3		)
Long-term secured debt	$	3.4		$	11.8

Revolving Credit Facility. On September 30, 2011, the Company and certain of its subsidiaries amended and extended its credit agreement with JPMorgan Chase Bank, N.A., as administrative agent, and the other financial institutions party thereto (the “Revolving Credit Facility”), with the commitment under the facility being increased from $200.0 to $300.0 and the term being extended from March 23, 2014 to September 30, 2016. The Revolving Credit Facility is secured by a first priority lien on substantially all of the accounts receivable, inventory and certain other related assets and proceeds of the Company and its domestic operating subsidiaries as well as certain machinery and equipment. Under the Revolving Credit Facility, the Company is able to borrow from time to time an aggregate commitment amount equal to the lesser of $300.0 and a borrowing base comprised of (i) 85% of eligible accounts receivable, (ii) the lesser of (a) 65% of eligible inventory and (b) 85% of the net orderly liquidation value of eligible inventory as determined in the most recent inventory appraisal ordered by the administrative agent and (iii) 85% of certain eligible machinery and equipment, reduced by certain reserves, all as specified in the Revolving Credit Facility. Up to a maximum of $60.0 of availability under the Revolving Credit Facility may be utilized for letters of credit.

Borrowings under the Revolving Credit Facility bear interest at a rate equal to either a base prime rate or LIBOR, at the Company's option, plus, in each case, a specified variable percentage determined by reference to the then-remaining borrowing availability under the Revolving Credit Facility. The Revolving Credit Facility may, subject to certain conditions and the agreement of any increasing lenders and/or any additional lenders thereunder, be increased up to $350.0.

The Company had $260.5 of borrowing availability under the Revolving Credit Facility at December 31, 2011, based on the borrowing base determination then in effect. At December 31, 2011, there were no borrowings under the Revolving Credit Facility, and $8.9 was being used to support outstanding letters of credit, leaving $251.6 of net borrowing availability. The interest rate applicable to any overnight borrowings under the Revolving Credit Facility would have been 4.0% at December 31, 2011.

Amounts owed under the Revolving Credit Facility may be accelerated upon the occurrence of various events of default including, without limitation, the failure to make principal or interest payments when due and breaches of covenants, representations and warranties set forth therein. The Revolving Credit Facility places limitations on the ability of the Company and certain of its subsidiaries to, among other things, grant liens, engage in mergers, sell assets, incur debt, make investments, undertake transactions with affiliates, pay dividends and repurchase shares. In addition, the Company is required to maintain a fixed charge coverage ratio on a consolidated basis at or above 1.1:1.0 if borrowing availability under the Revolving Credit Facility is less than $30.0. At December 31, 2011, the Company was in compliance with all covenants contained in the Revolving Credit Facility.

Other Notes Payable. In connection with the Company's acquisition of the Florence, Alabama facility (see Note 5), a promissory note in the amount of $6.7 (the “Nichols Promissory Note”) was issued to Nichols as a part of the consideration paid. The Nichols Promissory Note bears interest at a rate of 7.5% per annum. Accrued but unpaid interest is due quarterly through maturity of the Nichols Promissory Note on August 9, 2015, and principal payments are due in equal quarterly installments. The Company has the option to repay all or a portion of the Nichols Promissory Note at any time prior to the maturity date. The Nichols Promissory Note is secured by certain real property and equipment included in the assets acquired from Nichols. At December 31, 2011, the outstanding principal balance under the Nichols Promissory Note was $4.7, of which $1.3 was payable within 12 months.

On September 30, 2011, the Company fully prepaid the $7.0 outstanding principal balance of a promissory note issued in connection with the Company's December 2008 purchase of the land and buildings of its Los Angeles, California facility (the "Los Angeles Promissory Note"). Prior to the time of such purchase, the facility was operated under a long term lease.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

5. Acquisition

Alexco. Effective January 1, 2011, the Company completed the acquisition of substantially all of the assets of Alexco, a manufacturer of hard alloy extrusions for the aerospace industry, based in Chandler, Arizona.

The Company paid net cash consideration of $83.2, with existing cash on hand, and assumed certain liabilities totaling approximately $1.0. Total acquisition related costs were $0.5, of which $0.4 was expensed in 2010 and $0.1 was expensed in 2011. Such expenses are included within Selling, administrative, research and development, and general expenses.

The following table summarizes recognized amounts of identifiable assets acquired and liabilities assumed at the effective date of the acquisition:

Allocation of purchase price:
Cash	$	4.9
Accounts receivable, net	3.6
Inventory	6.6
Property, plant and equipment	4.5
Definite-lived intangible assets:
Customer relationships	34.7
Backlog	0.3
Trademark and trade name	0.4
Goodwill	34.1
Accounts payable and other current liabilities	(1.0		)
Cash consideration paid	$	88.1

Goodwill arising from this transaction reflects (i) the expected synergistic benefits to the Company, as the products manufactured by the acquired operation are expected to complement the Company's other offerings of sheet, plate, cold finish and drawn tube products for aerospace applications and (ii) the calculation of the fair value of the other assets acquired and liabilities assumed in this transaction. Goodwill arising from this transaction is anticipated to be deductible for tax purposes over the next 15 years.

The following unaudited pro forma financial information for the Company summarizes the results of operations for the periods indicated as if the Alexco acquisition had been completed as of January 1, 2010. This pro forma financial information considers principally (i) the Company's audited financial results, (ii) the unaudited historical financial results of Alexco, as supplied to the Company, and (iii) select pro forma adjustments to the historical financial results of Alexco. Such pro forma adjustments represent principally estimates of (i) the impact of the hypothetical amortization of acquired intangible assets and the recognition of fair value adjustments relating to tangible assets in pre-tax income in each period and (ii) the pro forma impact of the transaction on the Company's tax provision in each period. These pro forma adjustments did not have a material impact on the pro forma Net income, as presented below. The following pro forma data does not purport to be indicative of the results of future operations or of the results that would have actually occurred had the acquisition taken place at the beginning of 2010:

	Year Ended
	December 31,
	2011 1		2010
Net sales (combined)	$	1,301.3	$	1,110.7
Net income (combined)	$	25.1	$	16.9
Basic earnings per share (combined)	$	1.32	$	0.87
Diluted earnings per share (combined)	$	1.32	$	0.87

____________

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

¹  The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

The following information presents select financial data relating to the Chandler, Arizona (Extrusion) facility, as included within the Company's consolidated operating results for the year ended December 31, 2011.

	Year Ended
	December 31, 2011
Net sales	$	42.8
Net income before income taxes	$	10.5

Nichols. On August 9, 2010, the Company acquired the Florence, Alabama facility, which manufactures bare mechanical alloy wire products, nails and aluminum rod for aerospace, general engineering, and automotive applications.

Consideration consisted of (i) $9.0 in cash, (ii) the $6.7 Nichols Promissory Note from the Company to Nichols (see Note 4), and (iii) the assumption of certain liabilities totaling approximately $2.1. Total acquisition-related costs were approximately $0.8, all of which were expensed through December 31, 2010 and included in Selling, administrative, research and development, and general in the Statements of Consolidated Income. The acquisition did not have a material impact on the Company's consolidated financial statements.

The following table summarizes recognized amounts of identifiable assets acquired and liabilities assumed at the acquisition date:

Allocation of purchase price:
Inventory	$	3.9
Other current assets	2.3
Property, plant and equipment	4.2
Definite lived intangible assets	4.3
Goodwill	3.1
Accounts payable and other current liabilities	(2.1		)
Consideration paid	$	15.7

The goodwill arising from the acquisition represents the commercial opportunity for the Company to sell small-diameter rod, bar and wire products, as a complement to its other products, to its core end market segments for aerospace, general engineering and automotive applications and is expected to be deductible for income tax purposes over the next 15 years.

6. Goodwill and Intangible Assets

Goodwill. A roll-forward of goodwill is as follows (see Note 5 for additional information about the Company's business acquisitions):

Balance as of December 31, 2009	$	—
Goodwill arising from Nichols acquisition	3.1
Balance as of December 31, 2010	$	3.1
Goodwill arising from Alexco acquisition	34.1
Balance as of December 31, 2011	$	37.2

All of the Company's goodwill is included in the Fabricated Products segment.

Intangible Assets. Identifiable intangible assets at December 31, 2011 and December 31, 2010 are comprised of the following:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

December 31, 2011:

	Weighted average Estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	25	$	38.5	$	(1.7	)	$	36.8
Backlog	2	0.8		(0.7		)	0.1
Trademark and trade name	3	0.4		(0.1		)	0.3
Total	24	$	39.7	$	(2.5	)	$	37.2

December 31, 2010:

	Weighted average Estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	20	$	3.8	$	(0.1	)	$	3.7
Backlog	3	0.5		(0.2		)	0.3
Total	18	$	4.3	$	(0.3	)	$	4.0

The Company acquired $35.4 of intangible assets through the acquisition of Alexco in 2011 (see Note 5). Amortization expense relating to definite-lived intangible assets is recorded in the Fabricated Products segment. Such expense was $2.2 and $0.3 for 2011 and 2010, respectively. The expected amortization of intangible assets for the next five calendar years is as follows:

2012	$	1.8
2013	1.7
2014	1.6
2015	1.6
2016	1.6
Thereafter	28.9
Total	$	37.2

7. Income Tax Matters

Tax provision. Income before income taxes by geographic area is as follows:

	Year Ended December 31,
	2011		2010		2009
Domestic	$	37.9	$	23.0	$	117.8
Foreign	3.4		2.1		0.8
Total	$	41.3	$	25.1	$	118.6

Income taxes are classified as either domestic or foreign, based on whether payment is made or due to the United States or a foreign country. Certain income classified as foreign is also subject to domestic income taxes.

The (provision) benefit for income taxes consists of:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Federal			Foreign			State			Total
2011
Current	$	1.4		$	0.3		$	0.1		$	1.8
Deferred	(2.3		)	(0.5		)	0.7			(2.1		)
Provision applied to increase Additional capital/ Other comprehensive income	(13.5		)	(0.4		)	(2.0		)	(15.9		)
Total	$	(14.4	)	$	(0.6	)	$	(1.2	)	$	(16.2	)
2010
Current	$	—		$	0.1		$	(0.5	)	$	(0.4	)
Deferred	(34.4		)	0.2			(10.2		)	(44.4		)
Benefit applied to decrease Additional capital/ Other comprehensive income	27.9			0.4			3.4			31.7
Total	$	(6.5	)	$	0.7		$	(7.3	)	$	(13.1	)
2009
Current	$	0.7		$	(3.6	)	$	(1.1	)	$	(4.0	)
Deferred	(59.3		)	0.3			(2.1		)	(61.1		)
Benefit applied to decrease Additional capital/ Other comprehensive income	12.7			2.7			1.6			17.0
Total	$	(45.9	)	$	(0.6	)	$	(1.6	)	$	(48.1	)

A reconciliation between the provision for income taxes and the amount computed by applying the federal statutory income tax rate to income before income taxes is as follows:

	Year Ended December 31,
	2011			2010			2009
Amount of federal income tax provision based on the statutory rate	$	(14.5	)	$	(8.8	)	$	(41.5	)
(Increase) decrease in federal valuation allowances	—			(0.2		)	0.5
Non-deductible compensation expense	(1.1		)	(0.6		)	(4.7		)
Non-deductible expense	(0.4		)	(0.3		)	(0.5		)
State income taxes, net of federal benefit 1	(0.8		)	(4.7		)	(1.0		)
Foreign income tax benefit	0.6			1.5			—
Other	—			—			(0.9		)
Income tax provision	$	(16.2	)	$	(13.1	)	$	(48.1	)

___________________________

¹  State income taxes of $4.7 in 2010 primarily consists of (i) a $1.9 increase in the valuation allowance relating to certain unused state net operating losses expected to expire and (ii) a $2.3 increase in the income tax provision from a reduction in the state deferred tax asset relating to a decrease in state net operating losses resulting from lower state apportionment factors in various states.

The table above reflects a full statutory U.S. tax provision despite the fact that the Company is only paying alternative minimum tax (“AMT”) in the U.S. and some state income taxes. See “Tax Attributes” below.

Deferred Income Taxes. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and amounts used for income tax purposes. The components of the Company’s net deferred income tax assets are as follows:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended December 31,
	2011			2010
Deferred income tax assets:
Loss and credit carryforwards	$	375.6		$	379.6
VEBAs	—			0.8
Other assets	39.6			25.9
Inventories and other	8.3			27.3
Valuation allowances	(18.8		)	(20.1		)
Total deferred income tax assets — net	404.7			413.5
Deferred income tax liabilities:
Property, plant, and equipment	(67.2		)	(61.9		)
VEBAs	(47.6		)	(59.5		)
Total deferred income tax liabilities	(114.8		)	(121.4		)
Net deferred income tax assets 1,2	$	289.9		$	292.1

__________________________

¹  Of the total net deferred income tax assets of $289.9, $63.0 was included in Prepaid expenses and other current assets and $226.9 was presented as Deferred tax assets, net on the Consolidated Balance Sheet as of December 31, 2011.

²  Of the total net deferred income tax assets of $292.1, $46.8 was included in Prepaid expenses and other current assets and $245.3 was presented as Deferred tax assets, net on the Consolidated Balance Sheet as of December 31, 2010.

Tax Attributes. At December 31, 2011, the Company had $875.1 of net operating loss (“NOL”) carryforwards available to reduce future cash payments for income taxes in the United States. Of the $875.1 of NOL carryforwards at December 31, 2011, $1.7 represents excess tax benefits related to the vesting of employee restricted stock which will result in an increase in equity if and when such excess tax benefits are ultimately realized. The NOL carryforwards expire periodically through 2030. The Company also had $29.8 of AMT credit carryforwards with an indefinite life, available to offset regular federal income tax requirements.

To preserve the NOL carryforwards available to the Company, (i) the Company’s certificate of incorporation includes certain restrictions on the transfer of the Company’s common stock and (ii) the Company entered into a stock transfer restriction agreement with the Union VEBA.

In assessing the realizability of deferred tax assets, management considers whether it is “more likely than not” that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers taxable income in carryback years, the scheduled reversal of deferred tax liabilities, tax planning strategies and projected future taxable income in making this assessment. Due to uncertainties surrounding the realization of some of the Company’s deferred tax assets, primarily including state NOLs sustained during the prior years and expiring tax benefits, the Company had a valuation allowance against its deferred tax assets. When recognized, the tax benefits relating to any reversal of this valuation allowance will be recorded as a reduction of income tax expense. The (decrease) increase in the valuation allowance was $(1.3), $2.1 and $(11.5) in 2011, 2010 and 2009, respectively. The decrease in the valuation allowance for 2011 was primarily due to the projected utilization of state NOLs. The increase in the valuation allowance in 2010 was primarily due to the expiration of projected state NOLs as a result of lower state apportionment in various state jurisdictions, of which $0.8 reversed in the first quarter of 2011 due to a change in tax law in the State of Illinois. The decrease in the valuation in 2009 was primarily due to a change in the State of Ohio's tax regime. Ohio phased out its corporate income tax and changed to a gross receipts tax, as a result, the deferred tax asset and the related valuation allowance, relating to Ohio NOLs, were reversed in 2009.

Other. The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. The Canada Revenue Agency audited the Company’s tax returns for fiscal years 1998 through 2001 and issued assessment notices for which Notices of Objection have been filed. In addition, the Canada Revenue Agency has audited the Company’s tax returns for fiscal years 2002 through 2004 and issued assessment notices, resulting in a payment of $7.9 to the Canada Revenue Agency against previously accrued tax reserves in 2009. During the fourth quarter of 2011, an additional $1.3 of Canadian Provincial income tax assessment, including interest, was paid resulting from the audit of the Company’s tax returns for fiscal years 2002 through 2004. The Company’s tax returns for certain past years are still subject to examination by taxing authorities, and the use of NOL carryforwards in future periods could trigger a review of attributes and other tax matters in years that are not otherwise subject to examination.

No U.S. federal or state liability has been recorded for the undistributed earnings of the Company’s Canadian subsidiary at

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

December 31, 2011. These undistributed earnings are considered to be indefinitely reinvested. Accordingly, no provision for U.S. federal and state income taxes or foreign withholding taxes has been provided on such undistributed earnings. Determination of the potential amount of unrecognized deferred U.S. income tax liability and foreign withholding taxes is not practicable because of the complexities associated with its hypothetical calculation.

The Company has gross unrecognized benefits relating to uncertain tax positions. If and when the gross unrecognized tax benefits are ultimately recognized, it will be reflected in the Company’s income tax provision and affect the effective tax rate in future periods.

A reconciliation of changes in the gross unrecognized tax benefits is as follows:

	Year Ended December 31,
	2011			2010			2009
Gross unrecognized tax benefits at beginning of period	$	15.0		$	15.6		$	15.8
Gross increases for tax positions of prior years	0.1			—			1.6
Gross decreases for tax positions of prior years	—			—			(1.6		)
Gross increases for tax positions of current years	0.4			0.4			0.4
Settlements	(0.5		)	—			(2.8		)
Gross decrease for tax positions relating to lapse of a statute of limitation	(0.9		)	(1.7		)	—
Foreign currency translation	(0.4		)	0.7			2.2
Gross unrecognized tax benefits at end of period	$	13.7		$	15.0		$	15.6

The change during 2011 was primarily due to a partial release of an unrecognized tax benefit as a result of the expiration of a statute, settlements with taxing authorities, foreign currency fluctuations and change in tax positions. The change during 2010 was primarily due to a partial release of an unrecognized tax benefit as a result of the expiration of a statute, foreign currency fluctuations and change in tax positions. The change during 2009 was primarily due to settlements with taxing authorities, foreign currency fluctuations and change in tax positions.

In addition, the Company recognizes interest and penalties related to above unrecognized tax benefits in the income tax provision. The Company had $6.6 accrued at both December 31, 2011 and December 31, 2010, for interest and penalties. Of these amounts, $0 and $0.4 were recorded as current liabilities and were included in Other accrued liabilities on the Consolidated Balance Sheets at December 31, 2011 and December 31, 2010, respectively. The Company recognized an increase (decrease) in interest and penalty of $0, $0.4 and $(3.2) in its tax provision in 2011, 2010 and 2009, respectively.

In connection with the gross unrecognized tax benefits (including interest and penalties) denominated in foreign currency, the Company incurred a foreign currency translation adjustment. During 2011, 2010 and 2009, the foreign currency impact on such liabilities resulted in $0.3, $(0.6) and $(2.7) currency translation adjustments, respectively, which were recorded within Other comprehensive income.

The Company does not expect its gross unrecognized tax benefits to materially change within the next 12 months.

8. Employee Benefits

Employee Plans. Employee benefit plans include:

• A defined contribution 401(k) savings plan for hourly bargaining unit employees at seven of the Company’s production facilities based on the specific collective bargaining agreement at each facility. For active bargaining unit employees at three of these production facilities, the Company is required to make fixed rate contributions. For active bargaining unit employees at one of these production facilities, the Company is required to match certain employee contributions. For active bargaining unit employees at two of these production facilities, the Company is required to make both fixed rate contributions and concurrent matches. For active bargaining unit employees at the one remaining production facility, the Company is not required to make any contributions. Fixed rate contributions either (i) range from (in whole dollars) $800 to $2,400 per employee per year, depending on the employee’s age, or (ii) vary between 2% to 10% of the employees’ compensation depending on their age and years of service for employees hired prior to January 1, 2004 or is a fixed 2% annual contribution for employees hired on or after January 1, 2004. The Company currently estimates that contributions to such plans will range from $1.0 to $3.0 per year.

• A defined contribution 401(k) savings plan for salaried and certain hourly employees providing for a concurrent match of up to 4% of certain contributions made by employees plus an annual contribution of between 2% and 10% of their compensation depending on their age and years of service to employees hired prior to January 1, 2004. All

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

new hires on or after January 1, 2004 receive a fixed 2% contribution annually. The Company currently estimates that contributions to such plan will range from $4.0 to $6.0 per year.

• A defined benefit plan for salaried employees at the Company’s London, Ontario facility, with annual contributions based on each salaried employee’s age and years of service. At December 31, 2011, approximately 55% of the plan assets were invested in equity securities, and 40% of plan assets were invested in debt securities. The remaining plan assets were invested in short-term securities. The Company’s investment committee reviews and evaluates the investment portfolio. The asset mix target allocation on the long-term investments is approximately 55% in equity securities, 43% in debt securities and the remaining assets in short-term securities. See Note 13 for additional information regarding the fair values of the Canadian pension plan assets.

• A non-qualified, unfunded, unsecured plan of deferred compensation for key employees who would otherwise suffer a loss of benefits under the Company’s defined contribution plan as a result of the limitations imposed by the Internal Revenue Code of 1986 (the “Code”). Despite the plan being an unfunded plan, the Company makes an annual contribution to a rabbi trust to fulfill future funding obligations, as contemplated by the terms of the plan. The assets in the trust are at all times subject to the claims of the Company’s general creditors, and no participant has a claim to any assets of the trust. Plan participants are eligible to receive distributions from the trust subject to vesting and other eligibility requirements. Assets in the rabbi trust relating to the deferred compensation plan are accounted for as available for sale securities and are included as Other assets on the Consolidated Balance Sheets (see Note 2). Liabilities relating to the deferred compensation plan are included on the Consolidated Balance Sheets as Long-term liabilities (see Note 2).

• An employment agreement with the Company’s chief executive officer extending through July 6, 2015. The Company also provides certain members of senior management, including each of the Company’s named executive officers, with benefits related to terminations of employment in specified circumstances, including in connection with a change in control, by the Company without cause and by the executive officer with good reason.

Postretirement Medical Obligations. The Company’s postretirement medical plan was terminated in 2004. Certain eligible retirees receive medical coverage, however, through participation in the Union VEBA or the VEBA that provides benefits for certain other eligible retirees, their surviving spouse and eligible dependents (the “Salaried VEBA” and, together with the Union VEBA, the “VEBAs”). The Union VEBA covers qualifying bargaining unit employees who do not, or are not eligible to, elect coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985. The Salaried VEBA covers certain retirees who retired prior to the 2004 termination of the prior plan and employees who were hired prior to February 2002 and subsequently retired or will retire with the requisite age and service. The Union VEBA is managed by four trustees (two appointed by the Company and two appointed by the the United Steel, Paper and Foresting, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL - CIO, CLC, or “USW”), and the assets are managed by an independent fiduciary. The Salaried VEBA is managed by trustees who are independent of the Company. The benefits paid by the VEBAs are at the sole discretion of the respective VEBA trustees and are outside the Company’s control.

As of December 31, 2011, the Union VEBA owned 2,202,495 common shares of the Company, or approximately 11% of the Company’s issued and outstanding shares of common stock. A stock transfer restriction agreement between the Union VEBA and the Company restricts the number of shares of the Company’s common stock that generally may be sold by the Union VEBA during any 12-month period without further approval of the Company's Board of Directors to 1,321,485. Shares owned by the Union VEBA that are subject to the stock transfer restriction agreement are treated as being similar to treasury stock (i.e. as a reduction of Stockholders' equity) in the Company's Consolidated Balance Sheet. In January 2012, in accordance with the stock transfer restriction agreement and our certificate of incorporation, our Board of Directors granted its written approval permitting the Union VEBA to sell any and all of the 1,321,485 shares that the Union VEBA would be entitled to sell during 12-month period beginning March 24, 2012 at any time during such 12-month period.

The following table presents the sale of Union VEBA shares by the Union VEBA in 2011 and 2010 (the Union VEBA was not authorized to sell any shares in 2009) and the effect on the Consolidated Balance Sheets due to these share sales:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended
	December 31,
	2011			2010
Common stock sold by Union VEBA	1,321,485			1,321,485
Increase in Union VEBA assets 1	$	65.5		$	52.1
Reduction in Common stock owned by Union VEBA 2	$	(31.7	)	$	(31.8	)
Increase in Additional paid in capital	$	(8.8	)	$	(0.7	)
Decrease in Deferred tax assets	$	(25.0	)	$	(19.6	)

________________________

¹ At a weighted-average price of $49.58 and $39.39 per share realized by the Union VEBA for the years 2011 and 2010, respectively.

²     At $24.02 per share reorganization value.

The Company’s only financial obligations to the VEBAs are (i) a variable cash contribution payable to the VEBAs based upon a formula driven calculation and (ii) an obligation to pay the administrative expenses of the VEBAs, up to $0.3 per year. The obligation to the Union VEBA with respect to the variable cash contribution extends through September 30, 2017, while the obligation to the Salaried VEBA has no termination date. The amount to be contributed to the VEBAs through September 2017 pursuant to the Company’s obligation is 10% of the first $20.0 of annual cash flow (as defined; in general terms, the principal elements of cash flow are earnings before interest expense, provision for income taxes, and depreciation and amortization less cash payments for, among other things, interest, income taxes, and capital expenditures), plus 20% of annual cash flow, as defined, in excess of $20.0. Such payments may not exceed $20.0 and do not carryover to future years. Payments are also limited to the extent that such payments would cause the Company’s liquidity to be less than $50.0.

Amounts owing by the Company to the VEBAs are recorded in the Company's Consolidated Balance Sheets under Other accrued liabilities, with a corresponding increase in Net assets in respect of VEBAs. Such amounts are determined and paid on an annual basis. At December 31, 2010, the accrued variable contribution was $2.1 (comprised of $1.8 to the Union VEBA and $0.3 to the Salaried VEBA). These amounts were paid during the first quarter of 2011, along with an additional payment of $0.1, based on the final computation of the 2010 results. As of December 31, 2011, the Company determined that the variable contribution for 2011 was zero, as investments, capital spending, and interest exceeded earnings before interest expense, provision for income taxes, and depreciation and amortization. In addition to the contribution obligations, during 2011, 2010 and 2009, the Company recorded $0.3 each year in administrative expenses of the VEBAs.

The Company has no claim to the plan assets of the VEBAs or obligation to fund the liability or determine the benefits paid by the VEBAs, and its only financial obligation to the VEBAs are to pay the variable contributions and certain administrative fees. Nevertheless, based on discussions with the staff of the SEC, for accounting purposes the Company treats the postretirement medical benefits to be paid by the VEBAs and the Company’s related variable contribution as defined benefit postretirement plans with the current VEBA assets and future variable contributions described above, and earnings thereon, operating as a cap on the benefits to be paid. Accordingly, the Company accounts for net periodic postretirement benefit costs in accordance with ASC Topic 715, Compensation — Retirement Benefits, and records any difference between the assets of each VEBA and its accumulated postretirement benefit obligation in the Company’s consolidated financial statements. Information necessary for the valuation of the net funded status of the plans must be obtained from the VEBAs on an annual basis. While the funding status of the VEBAs could result in a liability position on the Company’s Consolidated Balance Sheets, such liability has no impact on the Company's cash flow, liquidity or funding obligation to the VEBAs.

Key Assumptions. The following data presents the key assumptions used and the amounts reflected in the Company’s financial statements with respect to the Company’s Canadian pension plan and the VEBAs.

The Company uses a December 31 measurement date for all of the plans.

Assumptions used to determine benefit obligations as of December 31 are:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Canadian Pension Benefits				VEBA Benefits
	December 31, 2011		December 31, 2010		December 31, 2011				December 31, 2010
					Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA
Benefit obligations assumptions:
Discount rate	5.60	%	5.70	%	4.20	%	3.75	%	5.25	%	4.70	%
Rate of compensation increase	3.00	%	3.50	%	—		—		—		—
Initial medical trend rate 1	—		—		8.50	%	—		9.00	%	—
Ultimate medical trend rate 1	—		—		5.00	%	—		5.00	%	—

¹  The medical trend rate assumptions used for the Union VEBA were provided by the Union VEBA and certain industry data were provided by the Company's actuaries. The trend rate is assumed to decline to 5% by 2019 at December 31, 2011 and December 31, 2010. A one-percentage-point increase in the assumed medical trend rates would increase the accumulated postretirement benefit obligation of the Union VEBA by $50.5 and $37.0 at December 31, 2011 and December 31, 2010, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the accumulated postretirement benefit obligation of the Union VEBA by $40.8 and $30.4 at December 31, 2011 and December 31, 2010, respectively.

Key assumptions made in computing the net obligation of each VEBA and in total include:

With respect to VEBA assets:

• The shares of the Company’s common stock held by the Union VEBA that were not transferable have been excluded from assets used to compute the net asset or liability of the Union VEBA. There were 2,202,495 and 3,523,980 such shares at December 31, 2011 and December 31, 2010, respectively. Such shares will continue to be excluded until the restrictions lapse and are being accounted for similar to “treasury stock” in the interim (see Note 1).

• At December 31, 2011 and December 31, 2010, neither VEBA held any unrestricted shares of the Company’s common stock.

• Based on the information received from the VEBAs, at December 31, 2011 and December 31, 2010 both the Salaried VEBA and Union VEBA assets were invested in various managed proprietary funds. VEBA plan assets are managed by various investment advisors selected by the VEBA trustees, and are not under the control of the Company.

• The Company's variable payment, if any, is being treated as a funding/contribution policy and not counted as a VEBA asset at December 31 for actuarial purposes.

With respect to VEBA obligations:

• The accumulated postretirement benefit obligation (“APBO”) for each VEBA was computed based on the level of benefits being provided by each VEBA at December 31, 2011 and December 31, 2010.

• Since the Salaried VEBA was paying a fixed annual amount to its constituents at both December 31, 2011 and December 31, 2010, no future cost trend rate increase has been assumed in computing the APBO for the Salaried VEBA.

Assumptions used to determine net periodic benefit cost (income) for the years ended December 31 are:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Canadian Pension Benefits						VEBA Benefits
	2011		2010		2009		2011				2010				2009
							Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA
Net periodic benefit cost assumptions:
Discount rate	5.70	%	6.70	%	7.50	%	5.25	%	4.70	%	5.80	%	5.40	%	6.00	%	6.00	%
Expected long term return on plan assets 1	5.40	%	5.40	%	6.00	%	6.00	%	7.25	%	4.75	%	7.25	%	5.75	%	7.25	%
Rate of compensation increase	3.50	%	3.50	%	3.30	%	—		—		—		—		—		—
Initial medical trend rate2	—		—		—		9.00	%	—		9.50	%	—		9.00	%	—
Ultimate medical trend rate2	—		—		—		5.00	%	—		5.00	%	—		5.00	%	—

_____________________

¹  The expected long-term rate of return assumption is based on the historical investment portfolios provided to the Company by the VEBAs’ trustees.

²  The medical trend rate assumptions were used for the Union VEBA, which is currently paying certain prescription drug benefits, and provided by the Union VEBA and industry data from the Company's actuaries. The trend rate is assumed to decline to 5% by 2019, 5% by 2019 and 5% by 2013 for 2011, 2010 and 2009, respectively. A one-percentage-point increase in the assumed medical trend rates would increase the aggregate of the service and interest cost components of net periodic benefit costs by $2.7, $2.7 and $2.4 for 2011, 2010 and 2009, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the aggregate of the service and interest cost components of net periodic benefit costs by $2.1, $2.2, and $1.9 for 2011, 2010 and 2009, respectively.

Benefit Obligations and Funded Status — The following table presents the benefit obligations and funded status of the Company’s Canadian pension and the VEBAs as of December 31, 2011 and December 31, 2010, and the corresponding amounts that are included in the Company’s Consolidated Balance Sheets.

	Canadian Pension Benefits						VEBA Benefits
	2011			2010			2011			2010
Change in Benefit Obligation:
Obligation at beginning of year	$	5.4		$	4.1		$	348.6		$	344.8
Foreign currency translation adjustment	(0.1		)	0.2			—			—
Service cost	0.2			0.1			2.2			2.0
Interest cost	0.3			0.3			17.4			19.1
Actuarial (gain) loss1	(0.2		)	0.8			96.8			2.8
Plan participant contributions	—			0.1			—			—
Benefits paid by Company	(0.2		)	(0.2		)	—			—
Benefits paid by VEBA	—			—			(21.1		)	(23.2		)
Reimbursement from Retiree Drug Subsidy2	—			—			3.0			3.1
Obligation at end of year	5.4			5.4			446.9			348.6

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Change in Plan Assets:
FMV of plan assets at beginning of year	4.9			4.1			506.6			422.4
Foreign currency translation adjustment	(0.1		)	0.2			—			—
Actual return on assets	(0.2		)	0.3			16.9			49.9
Plan participant contributions	—			0.1			—			—
Sale of Company's common stock by Union VEBA	—			—			65.5			52.1
Employer/Company contributions	0.5			0.4			0.1			2.3
Benefits paid by Company	(0.2		)	(0.2		)	—			—
Benefits paid by VEBA	—			—			(21.1		)	(23.2		)
Reimbursement from Retiree Drug Subsidy2	—			—			3.0			3.1
FMV of plan assets at end of year	4.9			4.9			571.0			506.6
Net Funded Status 3	$	(0.5	)	$	(0.5	)	$	124.1		$	158.0

_____________________________

¹  The actuarial loss relating to the VEBA plans in 2011 is comprised of (i) a loss of $31.4 resulting from an increase in benefit cost for plan participants, (ii) a loss of $53.5 resulting from a decrease in discount rates used to determine benefit obligations for both VEBA plans and (iii) a loss of $11.9 resulting from change in actuarial assumptions. The actuarial loss relating to the VEBA plans in 2010 is primarily the result of a change in the assumption in participant marital status in the Union VEBA and a change in annual benefit payment per participant in the Salaried VEBA.

²  In January 2005, the Department of Health and Human Services’ Centers for Medicare and Medicaid Services (CMS) released final regulations governing the Medicare prescription drug benefit and other key elements of the Medicare Modernization Act that went into effect January 1, 2006. The Union VEBA is eligible for the Retiree Drug Subsidy because the plan meets the definition of actuarial equivalence and therefore qualifies for federal subsidies equal to 28% of allowable drug costs. As a result, the Company has measured the Union VEBA’s obligations and costs to take into account this subsidy.

³  With respect to the Prepaid benefit of $124.1 relating to the VEBAs at December 31, 2011, of which $144.7 was included in Net asset in respect of VEBA and $20.6 was included in Net liability in respect of VEBA on the Consolidated Balance Sheet. Prepaid benefit of $158.0 relating to the VEBAs at December 31, 2010, was included in Net asset in respect of the VEBAs on the Consolidated Balance Sheets.

With respect to the VEBAs, the Company has no claim to the plan assets nor obligation to fund the liability. The Company's only financial obligation to the VEBA is the variable cash contribution discussed previously. The following table presents the net assets of each VEBA as of December 31, 2011 and December 31, 2010 (such information is also included in the tables required under GAAP above which roll forward the assets and obligations):

	December 31, 2011									December 31, 2010
	Union VEBA			Salaried VEBA			Total			Union VEBA			Salaried VEBA			Total
APBO	$	(370.0	)	$	(76.9	)	$	(446.9	)	$	(289.0	)	$	(59.6	)	$	(348.6	)
Plan assets	514.7			56.3			571.0			445.7			60.9			506.6
Net Funded Status	$	144.7		$	(20.6	)	$	124.1		$	156.7		$	1.3		$	158.0

The projected benefit obligation for the Canadian defined benefit pension plan was $4.9 and $4.8 at December 31, 2011 and December 31, 2010, respectively. The Company expects to contribute $0.5 to the Canadian pension plan in 2012.

As of December 31, 2011, the net benefits expected to be paid in each of the next five fiscal years and in aggregate for the five fiscal years thereafter are as follows:

	Benefit Payments Due by Period
	2012			2013			2014			2015			2016			2017-2021
Canadian pension plan benefit payments	$	0.2		$	0.3		$	0.3		$	0.3		$	0.3		$	1.8
VEBA benefit payments1	28.7			29.3			29.6			29.9			30.1			177.3
Anticipated Retiree Drug Subsidy	(3.1		)	(3.3		)	(3.5		)	(3.6		)	(3.7		)	(19.7		)
Total net benefits	$	25.8		$	26.3		$	26.4		$	26.6		$	26.7		$	159.4

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

__________________________________

¹ Such amounts were obtained from the VEBAs. The Company's only financial obligations to the VEBAs are to pay the variable contributions which may not exceed $20.0 annually and certain administrative fees.

The amount of (loss) income which is recognized in the Consolidated Balance Sheets (in Accumulated other comprehensive (loss) income) associated with the Company’s Canadian defined benefit pension plan and the VEBAs that have not yet been reflected in net periodic benefit cost as of December 31, 2011 were as follows:

	Canadian Pension Benefits						VEBA Benefits
	December 31, 2011			December 31, 2010			December 31, 2011			December 31, 2010
Accumulated net actuarial (losses) gains	$	(2.0	)	$	(1.8	)	$	(95.1	)	$	14.7
Transition assets	0.4			0.4			—			—
Prior service cost	—			—			(41.1		)	(45.3		)
Loss recognized in Accumulated other comprehensive (loss) income	$	(1.6	)	$	(1.4	)	$	(136.2	)	$	(30.6	)

The amounts in Accumulated other comprehensive (loss) income that have not yet been recognized as components of net periodic pension benefit costs at December 31, 2011 that are expected to be recognized in 2012 are $0.1 for the Canadian pension plan relating to transition assets and $7.2 for the VEBAs. Of the $7.2 relating to the VEBAs, $4.2 is related to amortization of prior service cost and $3.0 is related to amortization of net actuarial loss. See the Statement of Comprehensive (Loss) Income for reclassification adjustments of other comprehensive income that were recognized as components of net periodic benefit costs for 2011, 2010 and 2009.

    Fair Value of Plan Assets. See Note 13 for the fair values of the VEBAs and Canadian pension plan assets.

Components of Net Periodic Benefit Cost (Income) — The Company’s results of operations included the following impacts associated with the Canadian defined benefit plan and the VEBAs: (a) charges for service rendered by employees; (b) a charge for accretion of interest; (c) a benefit for the return on plan assets; and (d) amortization of net gains or losses on assets, prior service costs associated with plan amendments and actuarial differences. The following table presents the components of net periodic benefit cost (income) for 2011, 2010 and 2009:

	Canadian Pension Benefits									VEBA Benefits
	2011			2010			2009			2011			2010			2009
Service cost	$	0.2		$	0.1		$	0.1		$	2.2		$	2.0		$	2.2
Interest cost	0.3			0.3			0.2			17.4			19.1			18.7
Expected return on plan assets	(0.3		)	(0.2		)	(0.2		)	(30.4		)	(20.9		)	(21.0		)
Amortization of prior service cost2	—			—			—			4.2			4.2			1.6
Amortization of net loss	0.1			—			—			0.6			0.7			3.8
Net periodic benefit costs (income)	$	0.3		$	0.2		$	0.1		$	(6.0	)	$	5.1		$	5.3

__________________________

¹  The Company amortizes prior service cost on a straight-line basis over the average remaining years of service to full eligibility for benefits of the active plan participants.

The following tables present the total (income) charges related to all benefit plans for 2011, 2010 and 2009:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended December 31,
	2011			2010		2009
Canadian pension plan	$	0.3		$	0.2	$	0.1
VEBAs	(6.0		)	5.1		5.3
Deferred compensation plan	0.2			1.3		0.4
Defined contribution plans	7.1			6.5		6.5
Total	$	1.6		$	13.1	$	12.3

The following tables present the allocation of these (income) charges:

	Year Ended December 31,
	2011			2010		2009
Fabricated Products	$	6.4		$	6.4	$	5.8
All Other	(4.8		)	6.7		6.5
Total	$	1.6		$	13.1	$	12.3

For all periods presented, the net periodic benefits relating to the VEBAs are included as a component of Selling, administrative, research and development and general expense within All Other and substantially all of the Fabricated Products segment’s related charges are in Cost of products sold, excluding depreciation, amortization and other items with the balance in Selling, administrative, research and development and general.

9. Multiemployer Pension Plans

Overview. The Company has employees represented by USW, International Association of Machinists (“IAM”) and International Brotherhood of Teamsters (“Teamsters”) and contributes to the respective multiemployer defined benefit pension plans under the terms of collective-bargaining agreements that cover its union-represented employees. The Company currently estimates that contributions will range from $2.0 to $4.0 per year through 2015.

The risks of participating in these multiemployer plans are different from single-employer plans in the following aspects:

a. Assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers.

b. If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers.

c. If the Company chooses to stop participating in some of its multiemployer plans, the Company may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability. The Company has effectuated a complete withdrawal from the Teamster Local Union 786 Building Materials pension fund effective October 28, 2011 as a result of terminating the Plainfield, Illinois operation. The Company did not incur material liability or cash payments in connection with the withdrawal from this pension fund in 2011.

The Company's participation in material multiemployer pension plans for the annual period ended December 31, 2011, is outlined in the table below.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Pension Fund	EIN/Pension Plan Number1	Pension Protection Act Zone Status2		FIP/RP Status Pending/Implemented in 20113	Contributions of the Company						Surcharge Imposed in 2011	Expiration Date of Collective-Bargaining Agreement
		2010	2009		2011		2010		2009
Steelworkers Pension Trust (USW)4	23-6648508	Green	Green	No	$	2.6	$	2.4	$	2.3	No	Mar 2014 - Sep 2015
National Pension Plan(IAM)5	51-6031295	Green	Green	No	0.3		0.3		0.4		No	Dec 2013 - Nov 2014
Western Conference of Teamsters Pension Plan (Teamsters)6	91-6145047	Green	Green	No	0.3		0.2		0.3		No	May 2012
Canada Wide Industrial Pension Plan7	920120	N/A	N/A	N/A	0.4		0.4		0.3		N/A	Feb 2012
					$	3.6	$	3.3	$	3.3

________________

¹  The “EIN/Pension Plan Number” column provides the Employee Identification Number (EIN) and the three-digit plan number, if applicable.

²  Unless otherwise noted, the most recent Pension Protection Act (PPA) zone status available in 2011 and 2010 is for the plan's year-end at December 31, 2010, and December 31, 2009, respectively. The zone status is based on information that the Company received from the plan and is certified by the plan's actuary. Among other factors, plans in the red zone are generally less than 65% funded, plans in the yellow zone are less than 80% funded, and plans in the green zone are at least 80% funded.

³  The “FIP/RP Status Pending/Implemented” column indicates plans for which a Financial Improvement Plan (FIP) or a Rehabilitation Plan (RP) is either pending or has been implemented under the PPA.

⁴  The Company is party to three collective-bargaining agreements that require contributions to the Steelworkers Pension Trust. Current union contracts covering employees at the Newark, Ohio and Spokane, Washington facilities, Florence, Alabama facility and Richmond (Bellwood), Virginia facility expire in September 2015, March 2014 and November 2014, respectively. Of the three, the union contract covering employees at the Newark, Ohio and Spokane, Washington facilities is more significant because 80% of the Company's USW-represented employees are covered by that agreement. The union contracts covering employees at the Bellwood, Virginia facility and Florence, Alabama facility cover 14% and 6% of the Company's USW-related employees, respectively. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the Steelworkers Pension Trust except that (i) the monthly contributions per hour worked by each bargaining unit employee at the Company’s Newark, Ohio and Spokane, Washington facilities increased to (in whole dollars) $1.25 starting July 2010 and will increase to (in whole dollars) $1.50 in July 2015 and (ii) monthly contributions per hour worked by each bargaining unit employee at at the Florence, Alabama facility are (in whole dollars) $1.25 per hour. The Company is also party to two other collective-bargaining agreements covering employees at the Chandler, Arizona (Tube) and Kalamazoo, Michigan facilities. However, these agreements do not require contributions from the Company to the Steelworkers Pension Trust because the employees at these facilities are covered under the Company's defined contribution 401(k) savings plan.

⁵  The Company is party to two significant collective-bargaining agreements that require contributions to the National Pension Plan. Current union contracts covering employees at the Richmond (Bellwood), Virginia, and Sherman, Texas facilities expire in November 2014 and December 2013, respectively. Of the two, the union contract covering employees at the Sherman, Texas facility is more significant because 89% of the Company's IAM-represented employees are covered by that agreement. The union contract covering employees at the Richmond (Bellwood), Virginia facility covers 11% of the Company's IAM-represented employees. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the National Pension Plan.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

⁶  The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee at the Los Angeles, California facility to the Western Conference of Teamsters Pension Plan.

⁷  The Company makes monthly contributions of (in whole dollars) $1.15 per hour worked by each bargaining unit employee at the London, Ontario facility to the Canada Wide Industrial Pension Plan. Information relating to the Pension Protection Act zone status, FIP/RIP status and surcharge imposed are not applicable to this plan because it is a Canadian plan that does not follow the same regulations as plans that are U.S. based.

The Company was not listed in any of the plans' Forms 5500 as providing more than 5% of the total contributions for any of the plan years disclosed. At December 31, 2011, Forms 5500 were not available for the plan years ending in 2011. Further, there were no significant changes to the number of employees covered by the Company's multiemployer plans that would affect the period-to-period comparability of the contributions for the years presented.

10. Employee Incentive Plans

Short-term Incentive Plans (“STI Plans”)

The Company has a short-term incentive compensation plan for senior management and certain other employees payable at the Company’s election in cash, shares of common stock, or a combination of cash and shares of common stock. Amounts earned under the plan are based primarily on EVA of the Company’s core Fabricated Products business, adjusted for certain safety and performance factors. EVA, as defined by the Company's STI Plans, is a measure of the excess of the Company’s adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year, measured over a one year period. Most of the Company’s production facilities have similar programs for both hourly and salaried employees.

Total costs relating to STI Plans were recorded as follows, for each period presented:

	Year Ended December 31,
	2011		2010		2009
Cost of products sold	$	3.2	$	2.9	$	2.8
Selling, administrative, research and development and general	5.2		3.9		3.2
Total costs recorded in connection with STI Plans	$	8.4	$	6.8	$	6.0

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2011		2010		2009
Fabricated Products segment	$	5.9	$	4.8	$	4.7
All Other	2.5		2.0		1.3
Total costs recorded in connection with STI Plans	$	8.4	$	6.8	$	6.0

Long- term Incentive Programs

General. Officers and other key employees of the Company or one or more of its subsidiaries, as well as directors of the Company, are eligible to participate in the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan (as amended, the “Equity Incentive Plan”). The Equity Incentive Plan permits the granting of awards in the form of options to purchase common shares, stock appreciation rights, shares of non-vested and vested stock, restricted stock units, performance shares, performance units and other awards. The Equity Plan was originally effective as of July 6, 2006 and amended and restated from time to time. On June 1, 2010, the Board amended and restated the Plan in its entirety, with such amendment and restatement effective as of June 8, 2010, the date the Plan as so amended and restated was approved by the Company's stockholders. Effective as of February 8, 2012, the Board again amended and restated the Plan in its entirety to clarify that the maximum number of shares that the Company may withhold in connection with income realization cannot exceed the minimum amount of shares necessary to satisfy the payment of the statutorily minimum amount of taxes that the Company is required to withhold in connection with such income realization.The Equity Incentive Plan will expire on July 6, 2016, and no grants will be made thereunder after that date. The Company’s Board of Directors may, in its discretion, terminate the Equity

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Incentive Plan at any time. The termination of the Equity Incentive Plan will not affect the rights of participants or their successors under any awards outstanding and not exercised in full on the date of termination, and all grants made on or prior to the date of termination will remain in effect thereafter subject to the terms of the applicable grant agreement and the Equity Incentive Plan. Subject to certain adjustments that may be required from time to time to prevent dilution or enlargement of the rights of participants under the Equity Incentive Plan, a total of 2,722,222 common shares have been authorized for issuance under the Equity Incentive Plan. At December 31, 2011, 845,499 common shares were available for additional awards under the Equity Incentive Plan. Compensation charges relating to all awards under the Equity Incentive Plan are included in Selling, administrative, research and development expenses.

Non-vested Common Shares, Restricted Stock Units, and Performance Shares. The Company grants non-vested common shares to its non-employee directors, executive officers and other key employees. The non-vested common shares granted to non-employee directors are generally subject to a one-year vesting requirement. The non-vested common shares granted to executive officers and senior management are generally subject to a three-year cliff vesting requirement. The non-vested common shares granted to other key employees are generally subject to a three-year graded vesting requirement. In addition to non-vested common shares, the Company also grants restricted stock units to certain employees. The restricted stock units have rights similar to the rights of non-vested common shares, and the employee will receive one common share for each restricted stock unit upon the vesting of the restricted stock unit. With the exception of restricted stock units granted to eligible employees of the Company’s French subsidiary, restricted stock units are generally subject to a three-year graded vesting requirement, with one-third of the restricted stock units vesting on each of the first, second and third anniversary of the grant date. Restricted stock units granted to eligible employees of the Company’s French subsidiary vest two-thirds on the second anniversary of the grant date and one-third on the third anniversary of the grant date.

The Company also grants performance shares to executive officers and other key employees. Such awards are subject to performance requirements pertaining to the Company’s EVA performance (as set forth in each year’s LTI program), measured over the applicable three-year performance period. EVA is a measure of the excess of the Company’s adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year. The number of performance shares, if any, that will ultimately vest and result in the issuance of common shares depends on the average annual EVA achieved for the specified three-year performance periods. During the quarter ended March 31, 2011, a portion of the performance shares granted under the 2008-2010 LTI program vested (see “Summary of Activity” below). The vesting of performance shares and resulting issuance and delivery of common shares, if any, under the 2009-2011 LTI program, 2010-2012 LTI program and 2011-2013 LTI program will occur in 2012, 2013 and 2014, respectively. Holders of performance shares do not receive voting rights through the ownership of such performance shares.

Non-cash Compensation Expense. Recorded costs by type of award under LTI programs were as follows, for each period presented:

	Year Ended December 31,
	2011		2010		2009
Service-based non-vested common shares and restricted stock units	$	4.1	$	3.6	$	7.9
Performance shares	1.1		0.8		0.9
Service-based stock options	—		0.1		0.3
Total non-cash compensation expense	$	5.2	$	4.5	$	9.1

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2011		2010		2009
Fabricated Products 1	$	1.5	$	1.4	$	3.5
All Other	3.7		3.1		5.6
Total non-cash compensation expense	$	5.2	$	4.5	$	9.1

_________

¹  Of the $3.5 compensation charge allocated to the Fabricated Products segment in 2009, $0.8 of the amount relates to the

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

accelerated vesting of previously granted stock-based payments in connection with the Company's restructuring efforts in 2009 (see Note 16).

Unrecognized Gross Compensation Cost Data. The following table presents unrecognized gross compensation cost data, by type of award:

	December 31, 2011
	Unrecognized gross compensation costs, by award type		Expected period (in years) over which the remaining gross compensation costs will be recognized, by award type
Service-based non-vested common shares and restricted stock units	$	3.1	1.7
Performance shares	$	3.1	2.0

Summary of Activity. A summary of the activity with respect to non-vested common shares, restricted stock units and performance shares for the year ended December 31, 2011 is as follows:

	Non-Vested Common Shares				Restricted Stock Units				Performance Shares
	Shares		Weighted-Average Grant-Date Fair Value per Share		Units		Weighted-Average Grant-Date Fair Value per Unit		Shares		Weighted-Average Grant-Date Fair Value per Share
Outstanding at December 31, 2010	268,864		$	27.91	7,872		$	21.74	686,895		$	26.84
Granted	83,066		47.07		2,182		46.59		188,741		46.65
Vested	(146,205	)	36.84		(3,982	)	17.16		(13,462	)	62.83
Forfeited	(2,889	)	33.47		—		—		(15,441	)	26.24
Canceled	—		—		—		—		(68,799	)	74.34
Outstanding at December 31, 2011	202,836		$	29.24	6,072		$	33.67	777,934		$	26.84

The total grant-date fair value for shares granted during 2011, 2010 and 2009 was $12.8, $10.5 and $9.6, respectively. Total grant-date fair value for shares that vested during 2011, 2010 and 2009 was $6.3, $2.6 and $21.6.

Stock Options. As of December 31, 2011 and 2010, there were 20,791 and 22,077 fully-vested options outstanding, respectively, in each case exercisable to purchase common shares at $80.01 per share and having a remaining contractual life of 5.25 and 6.25 years, respectively. During 2011, 1,286 stock options expired. The grant date fair value of all options was $39.90 per share. No new options were granted and no existing options were forfeited or exercised during 2011.

Vested Stock. From time to time, the Company issues common shares to non-employee directors electing to receive common shares in lieu of all or a portion of their annual retainer fees. The fair value of these common shares is based on the fair value of the shares at the date of issuance and is immediately recognized in earnings as a period expense. During 2011, 2010 and 2009, the Company recorded $0.2, $0.2 and $0.1, respectively, relating to common shares granted to non-employee directors in lieu of all or a portion of their annual retainer fees.

Under the Equity Incentive Plan, participants may elect to have the Company withhold common shares to satisfy minimum statutory tax withholding obligations arising in connection with the exercise of stock options and vesting of non-vested shares, restricted stock units and performance shares. Any such shares withheld are canceled by the Company on the applicable vesting dates, which correspond to the times at which income to the employee is recognized. When the Company withholds these common shares, the Company is required to remit to the appropriate taxing authorities the fair value of the shares withheld as of the vesting date. During 2011 and 2010, 62,637 and 11,729 commons shares, respectively, were withheld and canceled for this purpose. No such shares were withheld and canceled in 2009.

11. Commitments and Contingencies

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Commitments. The Company has a variety of financial commitments, including purchase agreements, forward foreign exchange and forward sales contracts, indebtedness (and related Call Options and Warrants) and letters of credit (see Note 3 and Note 4).

Minimum rental commitments under operating leases at December 31, 2011, are as follows: years ending December 31, 2012 - $7.5; 2013 - $6.4, 2014 - $3.6, 2015 - $3.0, 2016 - $2.3, and thereafter - $33.0. Rental expenses were $10.0, $9.9 and $7.3 for 2011, 2010, and 2009, respectively. There are renewal options in various operating leases subject to certain terms and conditions.

Environmental Contingencies. The Company is subject to a number of environmental laws, to fines or penalties assessed for alleged breaches of the environmental laws, and to claims based upon such laws.

The Company has established procedures for regularly evaluating environmental loss contingencies, including those arising from environmental reviews and investigations and any other environmental remediation or compliance matters. The Company’s environmental accruals represent the Company’s undiscounted estimate of costs reasonably expected to be incurred based on presently enacted laws and regulations, existing requirements, currently available facts, existing technology, and the Company’s assessment of the likely remediation actions to be taken.

The following table presents the changes in such accruals, which are primarily included in Long-term liabilities.

	Year Ended December 31,
	2011			2010			2009
Beginning balance	$	20.2		$	9.7		$	9.6
Additional accruals	3.9			13.9			2.4
Less expenditures	(2.1		)	(3.4		)	(2.3		)
Ending balance	$	22.0		$	20.2		$	9.7

During the third quarter of 2010, the Company increased its environmental accruals in connection with the Company's submission of a draft feasibility study to the Washington State Department of Ecology (“Washington State Ecology”) on September 8, 2010 (the “Feasibility Study”). The draft Feasibility Study included recommendations for a range of alternative remediations to primarily address the historical use of oils containing polychlorinated biphenyls, or PCBs, at the Company's Trentwood facility in Spokane, Washington which may be implemented over the next 30 years. During 2011, the Company continued to work with Washington State Ecology to revise the draft Feasibility Study and to determine viable remedial approaches. As of December 31, 2011, no agreement with Washington State Ecology had been reached on the final remediation approach. The draft Feasibility Study is still subject to further reviews, public comment and regulatory approvals before the final decree is issued. The Company expects the consent decree to be issued in late 2012.

At December 31, 2011, environmental accrual of $22.0 represented the Company's best estimate of the incremental cost based on proposed alternatives in the draft Feasibility Study related to the Company’s Trentwood facility in Spokane, Washington and on investigational studies and other remediation activities occurring at certain other locations owned by the Company. The Company expects that these remediation actions will be taken over the next 30 years and estimates that the incremental direct costs attributable to the remediation activities to be charged to these environmental accruals will be approximately $1.2 in 2012, $3.6 in 2013, $1.8 in 2014, $0.8 in 2015, $0.6 in 2016, $14.0 in 2017 and years thereafter through the balance of the 30-year period.

As additional facts are developed, feasibility studies are completed, draft remediation plans are modified, necessary regulatory approval for the implementation of remediation are obtained, alternative technologies are developed, and/or other factors change, there may be revisions to management’s estimates, and actual costs may exceed the current environmental accruals. The Company believes at this time that it is reasonably possible that undiscounted costs associated with these environmental matters may exceed current accruals by amounts that could be, in the aggregate, up to an estimated $21.7 over the next 30 years. It is reasonably possible that the Company’s recorded estimate may change in the next 12 months.

Other Contingencies. The Company is party to various lawsuits, claims, investigations, and administrative proceedings that arise in connection with past and current operations. The Company evaluates such matters on a case-by-case basis, and its policy is to vigorously contest any such claims it believes are without merit. The Company accrues for a legal liability when it is both probable that a liability has been incurred and the amount of the loss is reasonably estimatable. Quarterly, in addition to when changes in facts and circumstances require it, the Company reviews and adjusts these accruals to reflect the impacts of

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

negotiations, settlements, rulings, advice of legal counsel and other information, and events pertaining to a particular case. While uncertainties are inherent in the final outcome of such matters and it is presently impossible to determine the actual cost that may ultimately be incurred, management believes that it has sufficiently reserved for such matters and that the ultimate resolution of pending matters will not have a material adverse impact on its consolidated financial position, operating results, or liquidity.

12. Derivative Financial Instruments and Related Hedging Programs

Overview. In conducting its business, the Company, from time to time, enters into derivative transactions, including forward contracts and options, to limit its economic (i.e., cash) exposure resulting from (i) metal price risk related to its sale of fabricated aluminum products and the purchase of metal used as raw material for its fabrication operations, (ii) energy price risk relating to fluctuating prices of natural gas and electricity used in its production processes, and (iii) foreign currency requirements with respect to its foreign subsidiaries, investment and cash commitments for equipment purchases. Additionally, in connection with the issuance of the Notes, the Company purchased cash-settled Call Options relating to the Company’s common stock to limit its exposure to the cash conversion feature of the Notes (see Note 3). The Company may modify the terms of its derivative contracts based on operational needs or financing objectives. As the Company’s operational hedging activities are generally designed to lock in a specified price or range of prices, realized gains or losses on the derivative contracts utilized in the hedging activities generally offset at least a portion of any losses or gains, respectively, on the transactions being hedged at the time the transactions occur. However, due to mark-to-market accounting, during the term of the derivative contracts, significant unrealized, non-cash gains and losses may be recorded in the income statement.

Hedges of Operational Risks. The Company’s pricing of fabricated aluminum products is generally intended to lock in a conversion margin (representing the value added from the fabrication process(es)) and to pass metal price risk to its customers. However, in certain instances the Company enters into firm-price arrangements with its customers and incurs price risk on its anticipated aluminum purchases in respect of such customer orders. The Company uses third-party hedging instruments to limit exposure to metal price risks related to firm-price customer sales contracts. See Note 13 for additional information regarding the Company’s material derivative positions relating to hedges of operational risks, and their respective fair values.

During 2011, 2010 and 2009, total fabricated products shipments that contained fixed price terms were (in millions of pounds) 157.0, 97.0 and 162.7, respectively. At December 31, 2011, the Fabricated Products segment held contracts for the delivery of fabricated aluminum products that have the effect of creating price risk on anticipated purchases of aluminum for 2012 and 2013, totaling approximately (in millions of pounds) 103.1 and 0.4 , respectively.

A majority of the Company's derivative contracts relating to hedges of operational risks contain credit risk-related contingencies, which the Company tries to minimize or offset through the management of counterparty credit lines, the utilization of options as part of the hedging activities, or both. The Company regularly reviews the creditworthiness of its derivative counterparties and does not expect to incur a significant loss from the failure of any counterparties to perform under any agreements.

Hedges Relating to the Notes. As described in Note 3, the Company issued Notes in the aggregate principal amount of $175.0 on March 29, 2010. The conversion feature of the Notes can only be settled in cash and is required to be bifurcated from the Notes and treated as a separate derivative instrument. In order to offset the cash flow risk associated with the Bifurcated Conversion Feature, the Company purchased Call Options, which are accounted for as derivative instruments. The Company expects that the realized gain or loss from the Call Options will substantially offset the realized loss or gain of the Bifurcated Conversion Feature upon maturity of the Notes. However, because valuation assumptions for the Bifurcated Conversion Feature and the Call Option are not identical, over time the Company expects to record net unrealized gains and losses due to mark-to-market adjustments to the fair values of the two derivatives. See Note 13 for additional information regarding the fair values of the Bifurcated Conversion Feature and the Call Options.

The following table summarizes the Company's material derivative positions at December 31, 2011:

		Notional Amount of Contracts
Commodity	Maturity Period	(mmlbs)
Aluminum —
Fixed priced purchase contracts	1/12 through 11/13	103.5
Midwest premium swap contracts1	1/12 through 12/12	86.0

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

		Notional Amount of Contracts
Energy	Maturity Period	(mmbtu)
Natural gas —2
Call option purchase contracts	1/12 through 12/13	4,050,000
Put option sales contracts	1/12 through 12/13	4,050,000
Fixed priced purchase contracts	1/12 through 12/14	1,490,000

		Notional Amount of Contracts
Electricity	Maturity Period	(Mwh)
Fixed priced purchase contracts	1/12 through 12/12	219,600

		Notional Amount of Contracts
Hedges Relating to the Notes	Contract Period	(Common Shares)
Bifurcated Conversion Feature3	3/10 through 3/15	3,621,608
Call Options3	3/10 through 3/15	3,621,608

_________________________

¹  Regional premiums represent the premium over the London Metal Exchange price for primary aluminum which is incurred on the Company's purchases of primary aluminum.

²  As of December 31, 2011, the Company's exposure to fluctuations in natural gas prices had been substantially reduced for approximately 85%, 53% and 5% of the expected natural gas purchases for 2012, 2013 and 2014, respectively.

³  The Bifurcated Conversion Feature represents the cash conversion feature of the Notes. To hedge against the potential cash outflows associated with the Bifurcated Conversion Feature, the Company purchased cash-settled Call Options. The Call Options have an exercise price equal to the conversion price of the Notes, subject to anti-dilution adjustment provisions substantially similar to the Notes, which may cause the exercise price to decrease and the notional amount of shares relating thereto to increase. The Call Options will expire upon the maturity of the Notes. Although the fair value of the Call Options is derived from a notional number of shares of the Company's common stock, the Call Options may only be settled in cash.

  The Company reflects the fair value of its derivative contracts on a gross basis in the Consolidated Balance Sheets (see Note 2).

Realized and Unrealized Gains and Losses. Realized and unrealized gains (losses) associated with all derivative contracts consisted of the following, for each period presented:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended December 31,
	2011			2010			2009
Realized gains (losses):
Aluminum	$	9.6		$	(0.6	)	$	(29.2	)
Natural Gas	(5.2		)	(1.3		)	(10.0		)
Foreign Currency	—			—			(13.4		)
Total realized gains (losses):	$	4.4		$	(1.9	)	$	(52.6	)
Unrealized (losses) gains:
Aluminum	$	(26.5	)	$	3.6		$	61.2
Natural Gas	(1.6		)	(4.4		)	3.7
Electricity	(1.8		)	—			—
Foreign Currency	—			0.1			15.6
Call Options	(2.1		)	17.0			—
Bifurcated Cash Conversion Feature	6.1			(21.9		)	—
Total unrealized (losses) gains	$	(25.9	)	$	(5.6	)	$	80.5

13. Fair Value Measurements

Overview

The Company applies the fair value hierarchy established by GAAP for the recognition and measurement of assets and liabilities. An asset or liability's fair value classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, and considers counterparty risk in its assessment of fair value.

The fair values of financial assets and liabilities are measured on a recurring basis. The Company has elected not to carry any financial assets and liabilities at fair value, other than as required by GAAP. Financial assets and liabilities that the Company carries at fair value, as required by GAAP include: (i) its derivative instruments, (ii) the plan assets of the VEBAs and the Company's Canadian defined benefit pension plan, and (iii) available for sale securities, consisting of investments related to the Company's deferred compensation plan (see Note 8). The Company records certain other financial assets and liability at carrying value, see table below for the fair value disclosure of those assets and liabilities.

The majority of the Company's non-financial assets and liabilities, which include goodwill, intangible assets, inventories and property, plant, and equipment, are not required to be carried at fair value on a recurring basis. However, if certain triggering events occur (or at least annually for goodwill), an evaluation of a non-financial asset or liability is required, potentially resulting in an adjustment to the carrying amount of such asset or liability. For the years ended December 31, 2011 and December 31, 2010, the Company concluded that none of its non-financial assets and liabilities subject to fair value assessments on a non-recurring basis required a material adjustment to the carrying amount of such assets and liabilities.

Fair Values of Financial Assets and Liabilities

Fair Values of Derivative Assets and Liabilities. The Company's derivative contracts are valued at fair value using significant observable and unobservable inputs.

Commodity, Foreign Currency and Energy Hedges - The fair values of a majority of these derivative contracts are based upon trades in liquid markets. Valuation model inputs can generally be verified, and valuation techniques do not involve significant judgment. The Company has some derivative contracts, however, that do not have observable market quotes. For these financial instruments, management uses significant other observable inputs (e.g., information concerning regional premiums for swaps). Where appropriate, valuations are adjusted for various factors, such as bid/offer spreads.

Bifurcated Conversion Feature and Call Options -The fair value of the Bifurcated Conversion Feature is measured as the difference in the estimated fair value of the Notes and the estimated fair value of the Notes without the cash conversion feature. The Notes are valued based on the trading price of the Notes each period-end (see “All Other Financial Assets and Liabilities” below). The fair value of the Notes without the cash conversion feature is the present value of the series of the remaining fixed

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

income cash flows under the Notes, with a mandatory redemption in 2015.

The Call Options are valued using a binomial lattice valuation model. Significant inputs to the model are the Company's stock price, risk-free interest rate, credit spread, dividend yield, expected volatility of the Company's stock price, and probability of certain corporate events, all of which are observable inputs by market participants.

The significant assumptions used in the determining the fair value of the Call Options at December 31, 2011 were as follows:

Stock price at December 31, 20111	$	45.88
Quarterly dividend yield (per share)2	$	0.24
Risk-free interest rate3	0.42		%
Credit spread (basis points)4	569
Expected volatility rate5	42		%

____________

¹  The Company's stock price has the most material impact to the fair values of the Call Options and the Notes, which drives the fair value of the Bifurcated Conversion Feature.

²  The Company used a discrete quarterly dividend payment of $0.24 per share based on historical and expected future quarterly dividend payments as of December 31, 2011.

³  The risk-free rate was based on the five-year and three-year Constant Maturity Treasury rate on December 31, 2011, compounded semi-annually.

⁴  The Company's credit rating was estimated to be between BB and B+ based on comparisons of its financial ratios and size to those of other rated companies. Using the Merrill Lynch High Yield index, the Company identified credit spreads for other debt issuances with similar credit ratings and used the median of such credit spreads.

⁵  The volatility rate was based on both observed volatility, which is based on the Company's historical stock price, and implied volatility from the Company's traded options. Such volatility was further adjusted to take into consideration market participant risk tolerance.

VEBA and Canadian Pension Plan Assets. The VEBA assets are managed by various investment advisors selected by the trustees of each of the VEBAs. The VEBA assets are outside of the Company's control, and the Company does not have insight into the investment strategies. The fair value of the VEBAs’ plan assets is based on information made available to the Company by the VEBA administrators.

The assets of the Company's Canadian pension plan are managed by advisors selected by the Company, with the investment portfolio subject to periodic review and evaluation by the Company's investment committee. The investment of assets in the Canadian pension plan is based upon the objective of maintaining a diversified portfolio of investments in order to minimize concentration of credit and market risks (such as interest rate, currency, equity price and liquidity risks). The degree of risk and risk tolerance take into account the obligation structure of the plan, the anticipated demand for funds and the maturity profiles required from the investment portfolio in light of these demands.

The fair value of the plan assets of the VEBAs and the Company's Canadian pension plan are reflected in the Company's Consolidated Balance Sheets at fair value. In determining the fair value of the plan assets at each annual period end, the Company utilizes primarily the results of valuations supplied by the investment advisors responsible for managing the assets of each plan.

Certain assets are valued based upon unadjusted quoted market prices in active markets that are accessible at the measurement date for identical, unrestricted assets (e.g., liquid securities listed on an exchange). Such assets are classified within Level 1 of the fair value hierarchy.

Valuation of other invested assets is based on significant observable inputs (e.g., net asset values of registered investment companies, valuations derived from actual market transactions, broker-dealer supplied valuations, or correlations between a given U.S. market and a non-U.S. security). Valuation model inputs can generally be verified and valuation techniques do not involve significant judgment. The fair values of such financial instruments are classified within Level 2 of the fair value hierarchy.

Available for sale securities. The Company holds assets in various investment funds at certain registered investment

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

companies in connection with its deferred compensation program (see Note 1 and Note 8). Such assets are accounted for as available for sale securities and are measured and recorded at fair value based on the net asset value of the investment funds on a recurring basis at amortized cost. Such fair value input is considered a Level 2 input.

All Other Financial Assets and Liabilities. The Company believes that the fair value of its cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their respective carrying values due to their short maturities and nominal credit risk.

The Company believes that the fair value of Nichols Promissory Note materially approximates its carrying amount in light of the Company’s credit profile, the interest rate applicable to the Nichols Promissory Note, and its remaining duration. The foregoing fair value assessment is considered to be a Level 2 valuation within the fair value hierarchy.

The fair value of the Note is based on trading price of the Notes and is considered a Level 1 input in the fair value hierarchy.

The following table presents the Company's financial instruments, classified under the appropriate level of the fair value hierarchy, as of December 31, 2011:

	Level 1		Level 2			Level 3			Total
FINANCIAL ASSETS:
Derivative Instruments
Aluminum -
Fixed priced purchase contracts	$	—	$	0.3		$	—		$	0.3
Midwest premium swap contracts	—		—			0.1			0.1
Hedges Relating to the Notes -
Call Options	—		46.3			—			46.3
VEBAs and Canadian Pension Plan
Fixed income investment funds in registered investment companies1	—		413.3			—			413.3
Mortgage backed securities	—		33.9			—			33.9
Corporate debt securities2	—		39.1			—			39.1
Equity investment funds in registered investment companies3	—		52.3			—			52.3
United States Treasuries	—		1.6			—			1.6
Municipal debt securities	—		6.3			—			6.3
Cash and money market investments4	12.1		—			—			12.1
Asset backed securities	—		5.0			—			5.0
Diversified investment funds in registered investment companies5	—		12.3			—			12.3
All Other Financial Assets
Cash and cash equivalents	49.8		—			—			49.8
Available for sale securities	—		4.9			—			4.9
Total	$	61.9	$	615.3		$	0.1		$	677.3
FINANCIAL LIABILITIES:
Derivative Instruments
Aluminum -
Fixed priced purchase contracts	$	—	$	(7.8	)	$	—		$	(7.8	)
Midwest premium swap contracts	—		—			(0.1		)	(0.1		)

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Natural Gas -
Put option sales contracts	—			(5.6		)	—			(5.6		)
Fixed priced purchase contracts	—			(1.3		)	—			(1.3		)
Electricity -
Fixed priced purchase contracts	—			(1.8		)	—			(1.8		)
Hedges Relating to the Notes -
Bifurcated Conversion Feature	—			(53.9		)	—			(53.9		)
All Other Financial Liabilities
Nichols Promissory Note	—			(4.7		)	—			(4.7		)
Notes	(203.0		)	—			—			(203.0		)
Total	$	(203.0	)	$	(75.1	)	$	(0.1	)	$	(278.2	)

The following table presents the Company's financial instruments classified under the appropriate level of the fair value hierarchy as of December 31, 2010:

	Level 1		Level 2		Level 3		Total
FINANCIAL ASSETS:
Derivative Instruments
Aluminum -
Call option purchase contracts	$	—	$	9.3	$	—	$	9.3
Put option purchase contracts	—		0.1		—		0.1
Fixed priced purchase contracts	—		18.2		—		18.2
Midwest premium swap contracts	—		—		0.2		0.2
Natural Gas -
Call option purchase contracts	—		0.3		—		0.3
Put option purchase contracts	—		2.5		—		2.5
Fixed priced purchase contracts	—		0.1		—		0.1
Hedges Relating to the Notes -
Call Options	—		48.4		—		48.4
VEBAs and Canadian Pension Plan
Fixed income investment funds in registered investment companies1	—		299.1		—		299.1
Mortgage backed securities	—		81.7		—		81.7
Corporate debt securities2	—		47.6		—		47.6
Equity investment funds in registered investment companies3	—		32.8		—		32.8
United States Treasuries	—		15.0		—		15.0
Municipal debt securities	—		7.1		—		7.1
Cash and money market investments4	11.2		—		—		11.2
Asset backed securities	—		10.1		—		10.1
Diversified investment funds in registered investment companies5	—		4.9		—		4.9
All Other Financial Assets

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Cash and cash equivalents	135.6			—			—			135.6
Available for sale securities	—			4.6			—			4.6
Total	$	146.8		$	581.8		$	0.2		$	728.8
FINANCIAL LIABILITIES:
Derivative Instruments
Aluminum -
Call option sales contracts	$	—		$	(9.3	)	$	—		$	(9.3	)
Put option sales contracts	—			(0.1		)	—			(0.1		)
Fixed priced purchase contracts	—			(0.4		)	—			(0.4		)
Fixed priced sales contracts	—			(3.4		)	—			(3.4		)
Midwest premium swap contracts	—			—			(0.1		)	(0.1		)
Natural Gas -
Put option sales contracts	—			(4.6		)	—			(4.6		)
Fixed priced purchase contracts	—			(0.5		)	—			(0.5		)
Hedges Relating to the Notes -
Bifurcated Conversion Feature	—			(60.0		)	—			(60.0		)
All Other Financial Liabilities
Los Angeles Promissory Note	—			(7.0		)	—			(7.0		)
Nichols Promissory Note	—			(6.0		)	—			(6.0		)
Notes	(214.7		)	—			—			(214.7		)
Total	$	(214.7	)	$	(91.3	)	$	(0.1	)	$	(306.1	)

_________________________

^1.  This category represents investments in various fixed income funds with multiple registered investment companies. Such funds invest in diversified portfolios, including (a) marketable fixed income securities such as (i) U.S. Treasury and other government issued debt securities, (ii) mortgage backed securities, (iii) asset backed securities, (iv) corporate bonds, notes and debentures in various sectors, (v) preferred stock, (vi) various deposit accounts and (vii) repurchase agreements and reverse repurchase agreements, (b) higher yielding, non-investment-grade fixed income securities in the high yield market, (c) debt securities of issuers located in countries with new or emerging markets, denominated in U.S. dollars or other foreign currencies and (d) fixed income instruments which may be represented by options, future contracts or swap agreements. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^2.  This category represents investments in fixed income corporate securities in various sectors. Investments in the industrial, financial and utilities sectors in 2011 represented approximately 53%, 38% and 9% of the total portfolio in this category, respectively. Investments in the industrial, financial and utilities sectors in 2010 represented approximately 53%, 36% and 11% of the total portfolio in this category, respectively. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^3.  This category represents investments in equity funds that invest in portfolios comprised of (i) equity securities of U.S. companies with a certain market capitalization threshold, (ii) American Depositary Receipts, or ADRs, for securities of non-U.S. issuers, and (iii) securities whose principal market is outside of U.S. The fair value of assets in this category is estimated using the net asset value per share of the investments. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^4.  This category represents cash and investments in various money market funds.

^5.  The plan assets are invested in investment funds that hold a diversified portfolio of U.S and international equity securities and fixed income securities such as corporate bonds, government bonds, mortgage and asset backed securities. The fair value of assets in this category is estimated using the net asset value per share of the investments.

Financial instruments classified as Level 3 in the fair value hierarchy represent derivative contracts in which management

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

has used at least one significant unobservable input in the valuation model. The following table presents a reconciliation of activity for such derivative contracts on a net basis:

	Level 3
Balance at December 31, 2010	$	0.1
Total realized/unrealized losses included in:
Cost of goods sold excluding depreciation expense	1.4
Transactions involving Level 3 derivative contracts:
Purchases	—
Sales	—
Issuances	—
Settlements	(1.5		)
Transactions involving Level 3 derivatives - net	(1.5		)
Transfers in and (or) out of Level 3 valuation hierarchy	—
Balance at December 31, 2011	$	—
Total gains included in earnings attributable to the change in unrealized losses relating to derivative contracts held at December 31, 2011:	$	—

Fair Values of Non-financial Assets and Liabilities

Idled Assets. Included within Property, plant and equipment - net as of December 31, 2010 was $5.5 of idled assets. Of the carrying amount of idled assets as of December 31, 2010, $1.1 represented equipment used by the Company’s Tulsa, Oklahoma facility prior to the closure of that facility in 2008, and $4.4 represented assets that were acquired by the Company but had not yet been placed into service. During 2011, $0.1 of such assets was subsequently placed into service. Idled assets included within Property, plant and equipment - net was $5.4 as of December 31, 2011. The value of such assets was estimated using a combination of the cost approach and market approach. The cost approach uses replacement cost, and the market approach uses prices, for similar assets to determine the value of assets, and both approaches use Level 3 fair value inputs.

CAROs. The inputs in estimating the fair value of CAROs include: (i) the timing of when any such CARO cash flows may be incurred, (ii) incremental costs associated with special handling or treatment of CARO materials and (iii) the credit adjusted risk free rate applicable at the time additional CARO cash flows are estimated, all of which are considered Level 3 inputs as they involve significant judgment of the Company.

During 2010, the Company re-assessed and revised its estimates relating to the timing and future costs of various asbestos removal projects at one facility. Both upward and downward revisions relating to cost estimates were made. The following table summarizes the activity relating to the Company's CARO liabilities:

	Year Ended December 31,
	2011			2010			2009
Beginning balance	$	3.8		$	3.5		$	3.3
Liabilities incurred during the period	—			—			—
Liabilities settled during the period	(0.1		)	—			—
Accretion expense	0.3			0.3			0.2
Adjustment to accretion expense due to revisions to estimated cash flow1	—			(1.1		)	—
Revisions to estimated cash flow	—			1.1			—
Ending balance	$	4.0		$	3.8		$	3.5

^{__________________________________________} 

¹    The adjustment increased both basic and diluted earnings per share for 2010 by approximately $0.05 per share.    

The estimated fair value of CARO liabilities at December 31, 2011 and December 31, 2010 are based upon the application of a weighted-average credit-adjusted risk-free rate of 9.1%. CAROs are included in Other accrued liabilities or Long-term

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

liabilities, as appropriate (see Note 2).

14. Earnings Per Share

Basic and diluted earnings per share for 2011, 2010 and 2009 were calculated as follows:

	Year Ended December 31,
	2011		2010			2009
Numerator:
Net income	$	25.1	$	12.0		$	70.5
Less: Net income attributable to participating securities	—		(0.1		)	(1.6		)
Net income available to common stockholders	$	25.1	$	11.9		$	68.9
Denominator - Weighted-average common shares outstanding (000):1
Basic	18,979		19,377			19,639
Diluted	18,979		19,377			19,639
Earnings per common share, Basic:
Net income per share	$	1.32	$	0.61		$	3.51
Earnings per common share, Diluted:
Net income per share	$	1.32	$	0.61		$	3.51

_____________

¹  The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The diluted weighted-average number of common shares outstanding during the period is calculated under the two-class method, which does not take into account the dilutive effect of the unvested share-based payment awards.

The following table provides a detail of net income attributable to participating securities for 2011, 2010 and 2009:

	Year Ended			Year Ended			Year Ended
	December 31, 2011			December 31, 2010			December 31, 2009
Net income attributable to participating securities:1
Distributed income	$	—		$	0.1		$	0.4
Undistributed income	—			—			1.2
Total net income attributable to participating securities	$	—		$	0.1		$	1.6
Percentage of undistributed net income apportioned to participating securities	—		%	—		%	2		%

__________________________

¹  Net income attributable to participating securities for a given period includes both distributed and undistributed net income, as applicable. Distributed net income attributed to participating securities represents dividend and dividend equivalents declared on the participating securities that the Company expects to ultimately vest. Undistributed net income for a given period, if any, is apportioned to participating securities based on the weighted-average number of each class of securities outstanding during the applicable period as a percentage of the combined weighted-average number of these securities outstanding during the period. Undistributed losses are not allocated to participating securities, however, as holders of such securities do not have an obligation to fund net losses of the Company.

Options to purchase 20,791 common shares at an average exercise price of $80.01 per share were outstanding at December 31, 2011. The potential dilutive effect of options outstanding was zero for 2011, 2010 and 2009. Warrants relating to approximately 3.6 million common shares at an initial average exercise price of approximately $61.36 per share were outstanding at December 31, 2011. The potential dilutive effect of shares underlying the Warrants was zero for 2011 and 2010.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

During 2011, 2010 and 2009, the Company paid a total of approximately $18.9 ($0.96 per common share), $19.0 ($0.96 per common share), and $19.6 ($0.96 per common share), respectively, in cash dividends to stockholders, including the holders of restricted stock, and dividend equivalents to the holders of restricted stock units and to the holders of any performance shares with respect to one half of the performance shares.

In June 2008, the Company’s Board of Directors authorized the repurchase of up to $75.0 of the Company’s common shares, with repurchase transactions to occur in open market and privately negotiated transactions at such times and prices as deemed appropriate by management and to be funded with the Company’s excess liquidity after giving consideration to internal and external growth opportunities and cash flows. At December 31, 2011, $46.9 was available for additional share repurchase.

During the first quarter of 2010, pursuant to a separate authorization from the Company's Board of Directors, the Company repurchased $44.2, or 1,151,900 shares of the Company's outstanding common stock, in privately negotiated, off-market transactions with purchasers of the Notes.

15. Segment and Geographical Area Information

The Company’s primary line of business is the production of semi-fabricated specialty aluminum products through 11 focused production facilities in the United States and one in Canada. The Company also owns a 49% interest in Anglesey, which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales. Although Anglesey is decommissioning a portion of the site and pursuing the disposition of some of its assets, Anglesey currently expects to continue to conduct secondary aluminum remelt and casting operations.  The Company does not expect those efforts to impact the Company's results or result in any distribution by Anglesey to its owners.

Each of the Company’s North American production facilities is an operating segment. Such operating segments are aggregated for reporting purposes to one reportable segment, Fabricated Products. The Fabricated Products segment sells value-added products, such as aluminum sheet and plate and extruded and drawn products, which are primarily used in aerospace/high strength, general engineering, automotive, and other industrial applications.

At December 31, 2011, the Company’s operations also consisted of three other business units, Secondary Aluminum, Hedging, and Corporate and Other. On January 1, 2012, the Company began reviewing the results of the primary aluminum hedging activities, which prior to January 1, 2012 had been reported in the Hedging business unit, with the results of the Fabricated Products segment because the Company had begun to conduct such hedging activities with respect to primary aluminum solely for the Fabricated Products segment. Accordingly, all segment information presented herein has been re-casted to reflect the inclusion of primary aluminum hedging activities in the Fabricated Products segment for all periods presented, which resulted in a (decrease) increase of $(25.0), $3.1, and $74.8 in operating income of the Fabricated Products segment for the years ended 2011, 2010 and 2009, respectively, and an increase of $0.6 and $28.6 in Fabricated Products segment assets as of December 31, 2011 and December 31, 2010, respectively.

The Secondary Aluminum business unit sells value-added products, such as ingot and billet, produced at Anglesey, for which the Company receives a portion of a premium over normal commodity market prices. The Hedging business unit conducted hedging activities in respect of British Pound Sterling exchange rate risk relating to Anglesey’s smelting operations through September 30, 2009. The Corporate and Other business unit provides general and administrative support for the Company’s operations. For purposes of segment reporting under GAAP, the Company combines the three other business units, Secondary Aluminum, Hedging and the Corporate and Other into one category, which is referred to as All Other. All Other is not considered a reportable segment.

The accounting policies of the Fabricated Products segment are the same as those described in Note 1. Segment results are evaluated internally by management before any allocation of corporate overhead and without any charge for income taxes, interest expense, or Other operating charges, net.

The following tables provide financial information by operating segment for each period or as of each period-end, as applicable:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended December 31,
	2011			2010			2009
Net Sales:
Fabricated Products	$	1,301.3		$	1,078.8		$	897.1
All Other1	—			0.3			89.9
Total net sales	$	1,301.3		$	1,079.1		$	987.0
Segment Operating Income (Loss):
Fabricated Products 2,3	$	83.6		$	81.7		$	148.4
All Other4	(28.6		)	(40.6		)	(29.7		)
Total operating income	$	55.0		$	41.1		$	118.7
Interest expense	(18.0		)	(11.8		)	—
Other income (expense), net	4.3			(4.2		)	(0.1		)
Income before income taxes	$	41.3		$	25.1		$	118.6
Depreciation and Amortization:
Fabricated Products	$	24.8		$	19.4		$	16.2
All Other	0.4			0.4			0.2
Total depreciation and amortization	$	25.2		$	19.8		$	16.4
Capital expenditures:
Fabricated Products	$	32.1		$	38.0		$	58.5
All Other	0.4			0.9			0.7
Total capital expenditures	$	32.5		$	38.9		$	59.2

	December 31, 2011		December 31, 2010
Segment assets:
Fabricated Products	$	637.0	$	525.3
All Other5	683.6		793.6
Total assets	$	1,320.6	$	1,318.9

______________________

1 Net sales in All Other in 2010 represent residual activity involving primary aluminum purchased by the Company from Anglesey while it continued its smelting operations, prior to September 30, 2009, and resold by the Company in the first quarter of 2010. In connection with Anglesey’s remelt operations beginning in the fourth quarter of 2009, the Company changed its basis of revenue recognition from gross to a net basis (see Note 1).

2 Operating results in the Fabricated Products segment for 2011, 2010 and 2009 included non-cash LIFO inventory (benefits) charges of $(7.1), $16.5 and $8.7, respectively. Also included in the Fabricated Products segment operating results for 2009 were $9.3 of lower of cost or market inventory write-down and $5.4 of restructuring charges relating to the restructuring plans involving the Company's Tulsa, Oklahoma and Bellwood, Virginia facilities. Restructuring charges in 2011 and 2010 were not material. Also included in the Fabricated Products segment operating results for 2011, 2010 and 2009 were $1.7, $13.6 and $0.7, respectively, of environmental expense. Fabricated Products segment operating results for 2010 also included $3.9 of asset impairment charge relating to certain Property, plant and equipment.

3 Fabricated Products segment results for 2011, 2010 and 2009 include non-cash mark-to-market (losses) gains on primary aluminum, natural gas, electricity and foreign currency hedging activities totaling $(29.9), $(0.7) and $66.1, respectively. For further discussion regarding mark-to-market matters, see Note 12.

4 Operating results of All Other for 2009 include non-cash mark-to-market gain on foreign currency derivatives of $14.4. Also included in the operating income of All Other were $1.8 of impairment charges in 2009 relating to the Company's investment in Anglesey.

5 Assets in All Other represent primarily all of the Company’s cash and cash equivalents, financial derivative assets, net assets in respect of VEBA(s) and net deferred income tax assets.

Geographic information for net sales, based on country of origin, and income taxes paid are as follows:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Year Ended December 31,
	2011		2010		2009
Net sales to unaffiliated customers:
Fabricated Products —
United States	$	1,195.1	$	991.2	$	840.1
Canada	106.2		87.6		57.0
Total Fabricated Products net sales	1,301.3		1,078.8		897.1
All Other —
United Kingdom	—		0.3		89.9
Total All Other net sales	—		0.3		89.9
Total net sales	$	1,301.3	$	1,079.1	$	987.0
Income Taxes Paid:
Fabricated Products —
United States	$	1.7	$	0.1	$	4.0
Canada	1.8		0.7		8.8
Total income taxes paid	$	3.5	$	0.8	$	12.8

The aggregate foreign currency transaction gains (losses) included in determining net income were immaterial for 2011, 2010 and 2009. Sales to the Company’s largest fabricated products customer accounted for sales of approximately 21%, 23% and 20% of total revenue in 2011, 2010 and 2009, respectively. The loss of the Company’s largest customer would have a material adverse effect on the Company taken as a whole. However, in the Company’s opinion, the relationship between the customer and the Company is good, and the risk of loss of the customer is remote. Export sales were approximately 14%, 13% and 10% of total revenue during 2011, 2010 and 2009, respectively.

16. Restructuring and Other Exit Activities

During 2008 and 2009, the Company closed the Tulsa, Oklahoma facility and curtailed operations at the Bellwood, Virginia facility to focus solely on drive shaft and seamless tube products. These restructuring efforts were substantially completed by the end of 2009. Restructuring costs and other charges were $5.4 in 2009 primarily related to employee termination costs. The Company recorded an immaterial amount of restructuring benefits in 2010 primarily related to $1.0 of revisions of estimated employee termination costs, offset by an additional restructuring charge of $0.7 relating to the impairment of certain Construction in Progress assets. Restructuring benefits in 2011 were $0.3 primarily reflecting revisions of estimated employee termination costs.

All restructuring costs and other charges in connection with above-referenced restructuring plans were incurred and recorded in the Company's Fabricated Products segment.

The following table summarizes the activity relating to cash obligations arising from the Company's restructuring plans:

	Employee Termination and Other Personnel Costs
Restructuring obligations at December 31, 2008	$	4.5
Cash restructuring costs and other charges incurred in 2009	3.3
Cash payments in 2009	(5.5		)
Restructuring obligations at December 31, 2009	2.3
Cash restructuring costs and other benefits incurred in 2010	(1.0		)
Cash payments in 2010	(0.9		)
Restructuring obligations at December 31, 2010	0.4
Cash restructuring costs and other benefits incurred in 2011	(0.2		)
Cash payments in 2011	(0.2		)
Restructuring obligations at December 31, 2011	$	—

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

In addition to the restructuring activities above, the Company sold its manufacturing facility located in Greenwood, South Carolina for cash consideration of $4.8 in July 2010. The Greenwood, South Carolina facility produced forged aluminum products, which no longer fit within the Company's strategic portfolio of product offerings. In connection with the sale, the Company recorded a $1.9 impairment charge to reduce the carrying value of the assets classified as held-for-sale to their estimated fair value, less costs to sell. Such impairment loss was included in Other operating charges (benefit) in the Statements of Consolidated Income and was included as part of the Fabricated Products segment results.

17. Supplemental Cash Flow Information

	Year Ended December 31,
	2011		2010		2009
Supplemental disclosure of cash flow information:
Interest paid	$	10.4	$	6.0	$	2.0
Income taxes paid	$	3.5	$	0.8	$	12.8
Supplemental disclosure of non-cash transactions:
Non-cash capital expenditures	$	1.8	$	1.7	$	5.3
Issuance of Nichols Promissory Note — Note 4	$	—	$	6.7	$	—
Capital leases acquired	$	0.3	$	—	$	—

18. Other Income (Expense), Net

Other income (expense), net consisted of the following, for each period presented:

	Year Ended December 31,
	2011		2010			2009
Interest income	$	0.2	$	0.3		$	0.1
Unrealized gains (losses) on financial derivatives 1	4.0		(4.9		)	—
All other, net	0.1		0.4			(0.2		)
Other non-operating income (expense), net	$	4.3	$	(4.2	)	$	(0.1	)

____________

¹  See “Derivative Financial Instruments” in Note 1 for a discussion of accounting policy for such instruments.

19. Other Comprehensive (Loss) Income

The following table presents the tax effect allocated to each component of other comprehensive (loss) income for each period presented:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

	Before-Tax			Income Tax			Net-of-Tax
	Amount			(Expense) Benefit			Amount
2011
Defined benefit pension plan and VEBAs:
Net actuarial loss arising during the period	$	(110.6	)	$	42.2		$	(68.4	)
Reclassification adjustments:
Less: amortization of net actuarial gain	0.6			(0.2		)	0.4
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Total loss recognized in Accumulated other comprehensive loss related to defined benefit pension plan and VEBAs	(105.8		)	40.4			(65.4		)
Unrealized loss on available for sale securities	(0.1		)	—			(0.1		)
Foreign currency translation adjustment	0.2			—			0.2
Other comprehensive loss	$	(105.7	)	$	40.4		$	(65.3	)
2010
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	25.5		$	(9.7	)	$	15.8
Reclassification adjustments:
Less: amortization of net actuarial gain	0.7			(0.2		)	0.5
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Total income recognized in Accumulated other comprehensive income related to defined benefit pension plans	30.4			(11.5		)	18.9
Unrealized gain on available for sale securities	0.1			—			0.1
Foreign currency translation adjustment	(0.5		)	—			(0.5		)
Other comprehensive income	$	30.0		$	(11.5	)	$	18.5
2009
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	66.3		$	(25.0	)	$	41.3
Prior service cost arising during the period	(33.8		)	12.7			(21.1		)
Reclassification adjustments
Less: amortization of net actuarial loss	3.8			(1.4		)	2.4
Less: amortization of prior service cost	1.6			(0.6		)	1.0
Total income recognized in Accumulated other comprehensive income related to defined benefit pension plans	37.9			(14.3		)	23.6
Foreign currency translation adjustment	(1.5		)	—			(1.5		)
Other comprehensive income	$	36.4		$	(14.3	)	$	22.1

20. Restatement of Previously Issued Consolidated Financial Statements

The Company accounts for the postretirement medical benefits to be paid by the VEBAs as defined benefit postretirement plans with the current VEBA assets and future variable contributions and earnings thereon operating as a cap on the benefits to be paid. Subsequent to the issuance of the consolidated financial statements for the year ended December 31, 2010, the Company identified errors in the accuracy and completeness of the data previously provided by the Union VEBA. The Company determined that it had omitted certain deferred retirees from the Union VEBA's participant population and misinterpreted the benefit election of certain participants for the years ended December 31, 2009 and December 31, 2010. As a result of this omission and misinterpretation, the Company has restated the consolidated financial statements for the years

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

ended December 31, 2009 and December 31, 2010 and each of the interim periods in 2010 and 2011 to reflect the full effects of these errors, which management believes are not material to its previously issued consolidated financial statements.

The following is a summary of the effects of the restatement on the Company's Statements of Consolidated Income, Statements of Comprehensive (Loss) Income, Statements of Consolidated Stockholders' Equity and Statements of Cash Flows for the years ended December 31, 2010 and 2009 and Consolidated Balance Sheet as of December 31, 2010 (in millions of dollars, except per share amounts):

	December 31, 2010
	Previously Reported			Adjustment			Restated
Consolidated Balance Sheets:
Net asset in respect of VEBA(s)	$	195.7		$	(37.7	)	$	158.0
Deferred tax assets — net	231.1			14.2			245.3
Total assets	1,342.4			(23.5		)	1,318.9
Retained earnings	80.1			(2.1		)	78.0
Accumulated other comprehensive income (loss)	1.7			(21.4		)	(19.7		)
Total stockholders’ equity	912.2			(23.5		)	888.7
Total liabilities and equity	1,342.4			(23.5		)	1,318.9
	Year ended December 31, 2010
	Previously Reported			Adjustment			Restated
Statements of Consolidated Income:
Selling, administrative, research and development, and general	$	64.4		$	3.3		$	67.7
Total costs and expenses	1,034.7			3.3			1,038.0
Operating income	44.4			(3.3		)	41.1
Income before income taxes	28.4			(3.3		)	25.1
Income tax provision	(14.3		)	1.2			(13.1		)
Net income	14.1			(2.1		)	12.0
Earnings per common share, Basic:
Net income per share	$	0.72		$	(0.11	)	$	0.61
Earnings per common share, Diluted:
Net income per share	$	0.72		$	(0.11	)	$	0.61
Statements of Consolidated Comprehensive (Loss) Income:1
Net income	$	14.1		$	(2.1	)	$	12.0
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial gain arising during the period	11.4			14.1			25.5
Tax impact on net actuarial gain	(4.4		)	(5.3		)	(9.7		)
Reclassification adjustments:
Less: amortization of net actuarial loss	(0.4		)	1.1			0.7
Less: tax impact on amortization of net actuarial loss	0.2			(0.4		)	(0.2		)
Less: amortization of prior service cost	4.2			—			4.2
Less: tax impact on amortization of prior service cost	(1.6		)	—			(1.6		)

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Comprehensive income	23.1			7.4			30.5
Statements of Consolidated Stockholders' Equity:1
Net income	$	14.1		$	(2.1	)	$	12.0
Retained earnings	80.1			(2.1		)	78.0
Accumulated other comprehensive income (loss)	1.7			(21.4		)	(19.7		)
Total stockholders' equity	912.2			(23.5		)	888.7
Statements of Consolidated Cash Flows:
Net income	$	14.1		$	(2.1	)	$	12.0
Deferred income taxes	14.5			(1.2		)	13.3
Non-cash net periodic benefit cost2	—			5.1			5.1
Other non-cash changes in assets and liabilities2	1.0			(1.7		)	(0.7		)
	Year ended December 31, 2009
	Previously Reported			Adjustment			Restated
Statements of Consolidated Comprehensive (Loss) Income:1
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial gain arising during the period	$	114.6		$	(48.3	)	$	66.3
Tax impact on net actuarial gain	(43.2		)	18.2			(25.0		)
Prior service cost arising during the period	(32.4		)	(1.4		)	(33.8		)
Tax impact on prior service cost	12.2			0.5			12.7
Comprehensive income	123.5			(30.9		)	92.6
Statements of Consolidated Stockholders' Equity:1
Accumulated other comprehensive loss	$	(7.3	)	$	(30.9	)	$	(38.2	)
Total stockholders' equity	901.2			(30.9		)	870.3

_______________________________

¹   Total comprehensive (loss) income and components of other comprehensive (loss) income were previously included in the Statement of Stockholders' Equity. In 2011, the Company presented the Statement of Comprehensive (Loss) Income as a separate statement in accordance with ASU 2011-05. As such, the Previously Reported amounts in the tables above reflect the changes in the presentation.

²  Non-cash net periodic benefit cost was included within Other non-cash changes in assets and liabilities in 2010. Such amount has been reclassified from Other non-cash changes in assets and liabilities to conform to current period presentation.

21. Subsequent Events

The Company has evaluated events subsequent to December 31, 2011, to assess the need for potential recognition or disclosure in herein. Such events were evaluated through the date these financial statements were issued. Based upon this evaluation, it was determined that no subsequent events occurred that require recognition in the consolidated financial statements and that the following items represent subsequent events that merit disclosure herein:

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In millions of dollars, except share and per share amounts and as otherwise indicated)

Dividend Declaration. On January 13, 2012, the Company announced that its Board of Directors approved the declaration of a quarterly cash dividend of $0.25 per common share, or $4.9 (including dividend equivalents), which was paid on February 15, 2012 to stockholders of record at the close of business on January 24, 2012.

Quarterly cash dividend exceeding $0.24 per share has certain impacts on the conversion rate on our Notes, the exercise price of the Call Options and Warrants. See Note 3 for additional detail.

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

QUARTERLY FINANCIAL DATA (Unaudited)

(in millions of dollars, except share and per share amounts and as otherwise indicated)

The following tables present the unaudited financial data for each of the interim periods in 2011 and 2010. Subsequent to the issuance of the unaudited consolidated financial statements for the quarter ended September 30, 2011, the Company identified errors in the accuracy and completeness of the data previously provided by the Union VEBA. The Company determined that it had omitted certain deferred retirees from the Union VEBA's participant population and misinterpreted the benefit election of certain participants for the years ended December 31, 2009 and December 31, 2010. As a result of these errors, the previously presented unaudited consolidated quarterly financial statements for the interim periods in 2011 each contained a $0.7 overstatement of Operating income, a $0.4 overstatement of Net income and a $0.02 overstatement of Net income per share - basic and diluted, and the unaudited consolidated quarterly financial statements for the interim periods in 2010 each contained a $0.8 overstatement of Operating income, a $0.5 overstatement of Net income and a $0.03 overstatement of Net income per share - basic and diluted. The tables below reflect the unaudited restated amounts for each of the interim periods in 2011 and 2010 except for the quarter ended December 31, 2011. Management believes the effects of these errors are not material to any of its previously issued consolidated financial statements.

The restated financial information for each of the 2011 interim periods will also be reflected in the Company's Quarterly Report on Form 10-Q for corresponding interim periods ending in 2012, when such report is filed with the SEC.

	Quarter Ended 31-Mar		Quarter Ended 30-Jun		Quarter Ended 30-Sep			Quarter Ended 31-Dec
2011
Net sales	$	322.6	$	338.8	$	322.3		$	317.6
Cost of products sold, excluding depreciation, amortization and other items	280.9		300.0		297.7			280.3
Restructuring costs and other (benefits) charges	—		—		(0.3		)	—
Gross Profit	41.7		38.8		24.9			37.3
Operating income	19.8		14.7		4.9			15.6
Net income	$	10.8	$	4.1	$	4.1		$	6.1
Earnings per common share, Basic:
Net income per share	$	0.57	$	0.22	$	0.21		$	0.33
Earnings per common share, Diluted:
Net income per share	$	0.57	$	0.22	$	0.21		$	0.33
Common stock market price:
High	$	52.77	$	54.62	$	56.30		$	49.46
Low	$	45.88	$	46.37	$	43.71		$	40.26

	Quarter Ended 31-Mar			Quarter Ended 30-Jun			Quarter Ended 30-Sep			Quarter Ended 31-Dec
2010
Net sales	$	267.5		$	282.4		$	263.4		$	265.8
Cost of products sold, excluding depreciation, amortization and other items	232.0			255.9			229.3			229.6
Restructuring costs and other (benefits) charges	(0.6		)	0.1			(0.4		)	0.6
Gross Profit	36.1			26.4			34.5			35.6
Operating income	14.0			3.2			12.3			11.6
Net income (loss)	$	8.3		$	(0.4	)	$	5.0		$	(0.9	)
Earnings per common share, Basic:
Net income (loss) per share	$	0.41		$	(0.02	)	$	0.26		$	(0.05	)
Earnings per common share, Diluted:
Net income (loss) per share	$	0.41		$	(0.02	)	$	0.26		$	(0.05	)
Common stock market price:
High	$	44.40		$	41.63		$	43.23		$	52.00
Low	$	32.83		$	32.91		$	33.90		$	42.07

XML

Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2011

Compensation and Retirement Disclosure [Abstract]

Schedule of Common Shares Sold by Union VEBA

	Year Ended
	December 31,
	2011			2010
Common stock sold by Union VEBA	1,321,485			1,321,485
Increase in Union VEBA assets 1	$	65.5		$	52.1
Reduction in Common stock owned by Union VEBA 2	$	(31.7	)	$	(31.8	)
Increase in Additional paid in capital	$	(8.8	)	$	(0.7	)
Decrease in Deferred tax assets	$	(25.0	)	$	(19.6	)

________________________

¹ At a weighted-average price of $49.58 and $39.39 per share realized by the Union VEBA for the years 2011 and 2010, respectively.

²     At $24.02 per share reorganization value.

Schedule of Assumptions Used to Determine Benefit Obligations

	Canadian Pension Benefits				VEBA Benefits
	December 31, 2011		December 31, 2010		December 31, 2011				December 31, 2010
					Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA
Benefit obligations assumptions:
Discount rate	5.60	%	5.70	%	4.20	%	3.75	%	5.25	%	4.70	%
Rate of compensation increase	3.00	%	3.50	%	—		—		—		—
Initial medical trend rate 1	—		—		8.50	%	—		9.00	%	—
Ultimate medical trend rate 1	—		—		5.00	%	—		5.00	%	—

¹  The medical trend rate assumptions used for the Union VEBA were provided by the Union VEBA and certain industry data were provided by the Company's actuaries. The trend rate is assumed to decline to 5% by 2019 at December 31, 2011 and December 31, 2010. A one-percentage-point increase in the assumed medical trend rates would increase the accumulated postretirement benefit obligation of the Union VEBA by $50.5 and $37.0 at December 31, 2011 and December 31, 2010, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the accumulated postretirement benefit obligation of the Union VEBA by $40.8 and $30.4 at December 31, 2011 and December 31, 2010, respectively.

Schedule of Assumptions Used to Determine Net Periodic Benefit Cost (Income)

Assumptions used to determine net periodic benefit cost (income) for the years ended December 31 are:

	Canadian Pension Benefits						VEBA Benefits
	2011		2010		2009		2011				2010				2009
							Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA
Net periodic benefit cost assumptions:
Discount rate	5.70	%	6.70	%	7.50	%	5.25	%	4.70	%	5.80	%	5.40	%	6.00	%	6.00	%
Expected long term return on plan assets 1	5.40	%	5.40	%	6.00	%	6.00	%	7.25	%	4.75	%	7.25	%	5.75	%	7.25	%
Rate of compensation increase	3.50	%	3.50	%	3.30	%	—		—		—		—		—		—
Initial medical trend rate2	—		—		—		9.00	%	—		9.50	%	—		9.00	%	—
Ultimate medical trend rate2	—		—		—		5.00	%	—		5.00	%	—		5.00	%	—

_____________________

¹  The expected long-term rate of return assumption is based on the historical investment portfolios provided to the Company by the VEBAs’ trustees.

²  The medical trend rate assumptions were used for the Union VEBA, which is currently paying certain prescription drug benefits, and provided by the Union VEBA and industry data from the Company's actuaries. The trend rate is assumed to decline to 5% by 2019, 5% by 2019 and 5% by 2013 for 2011, 2010 and 2009, respectively. A one-percentage-point increase in the assumed medical trend rates would increase the aggregate of the service and interest cost components of net periodic benefit costs by $2.7, $2.7 and $2.4 for 2011, 2010 and 2009, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the aggregate of the service and interest cost components of net periodic benefit costs by $2.1, $2.2, and $1.9 for 2011, 2010 and 2009, respectively.

Schedule of Changes in Benefit Obligations

	Canadian Pension Benefits						VEBA Benefits
	2011			2010			2011			2010
Change in Benefit Obligation:
Obligation at beginning of year	$	5.4		$	4.1		$	348.6		$	344.8
Foreign currency translation adjustment	(0.1		)	0.2			—			—
Service cost	0.2			0.1			2.2			2.0
Interest cost	0.3			0.3			17.4			19.1
Actuarial (gain) loss1	(0.2		)	0.8			96.8			2.8
Plan participant contributions	—			0.1			—			—
Benefits paid by Company	(0.2		)	(0.2		)	—			—
Benefits paid by VEBA	—			—			(21.1		)	(23.2		)
Reimbursement from Retiree Drug Subsidy2	—			—			3.0			3.1
Obligation at end of year	5.4			5.4			446.9			348.6

Schedule of Changes in Plan Assets

Change in Plan Assets:
FMV of plan assets at beginning of year	4.9			4.1			506.6			422.4
Foreign currency translation adjustment	(0.1		)	0.2			—			—
Actual return on assets	(0.2		)	0.3			16.9			49.9
Plan participant contributions	—			0.1			—			—
Sale of Company's common stock by Union VEBA	—			—			65.5			52.1
Employer/Company contributions	0.5			0.4			0.1			2.3
Benefits paid by Company	(0.2		)	(0.2		)	—			—
Benefits paid by VEBA	—			—			(21.1		)	(23.2		)
Reimbursement from Retiree Drug Subsidy2	—			—			3.0			3.1
FMV of plan assets at end of year	4.9			4.9			571.0			506.6
Net Funded Status 3	$	(0.5	)	$	(0.5	)	$	124.1		$	158.0

_____________________________

¹  The actuarial loss relating to the VEBA plans in 2011 is comprised of (i) a loss of $31.4 resulting from an increase in benefit cost for plan participants, (ii) a loss of $53.5 resulting from a decrease in discount rates used to determine benefit obligations for both VEBA plans and (iii) a loss of $11.9 resulting from change in actuarial assumptions. The actuarial loss relating to the VEBA plans in 2010 is primarily the result of a change in the assumption in participant marital status in the Union VEBA and a change in annual benefit payment per participant in the Salaried VEBA.

²  In January 2005, the Department of Health and Human Services’ Centers for Medicare and Medicaid Services (CMS) released final regulations governing the Medicare prescription drug benefit and other key elements of the Medicare Modernization Act that went into effect January 1, 2006. The Union VEBA is eligible for the Retiree Drug Subsidy because the plan meets the definition of actuarial equivalence and therefore qualifies for federal subsidies equal to 28% of allowable drug costs. As a result, the Company has measured the Union VEBA’s obligations and costs to take into account this subsidy.

³  With respect to the Prepaid benefit of $124.1 relating to the VEBAs at December 31, 2011, of which $144.7 was included in Net asset in respect of VEBA and $20.6 was included in Net liability in respect of VEBA on the Consolidated Balance Sheet. Prepaid benefit of $158.0 relating to the VEBAs at December 31, 2010, was included in Net asset in respect of the VEBAs on the Consolidated Balance Sheets.

Schedule of Net Funded Status

The following table presents the net assets of each VEBA as of December 31, 2011 and December 31, 2010 (such information is also included in the tables required under GAAP above which roll forward the assets and obligations):

	December 31, 2011									December 31, 2010
	Union VEBA			Salaried VEBA			Total			Union VEBA			Salaried VEBA			Total
APBO	$	(370.0	)	$	(76.9	)	$	(446.9	)	$	(289.0	)	$	(59.6	)	$	(348.6	)
Plan assets	514.7			56.3			571.0			445.7			60.9			506.6
Net Funded Status	$	144.7		$	(20.6	)	$	124.1		$	156.7		$	1.3		$	158.0

Schedule of Expected Benefit Payments

As of December 31, 2011, the net benefits expected to be paid in each of the next five fiscal years and in aggregate for the five fiscal years thereafter are as follows:

	Benefit Payments Due by Period
	2012			2013			2014			2015			2016			2017-2021
Canadian pension plan benefit payments	$	0.2		$	0.3		$	0.3		$	0.3		$	0.3		$	1.8
VEBA benefit payments1	28.7			29.3			29.6			29.9			30.1			177.3
Anticipated Retiree Drug Subsidy	(3.1		)	(3.3		)	(3.5		)	(3.6		)	(3.7		)	(19.7		)
Total net benefits	$	25.8		$	26.3		$	26.4		$	26.6		$	26.7		$	159.4

__________________________________

¹ Such amounts were obtained from the VEBAs. The Company's only financial obligations to the VEBAs are to pay the variable contributions which may not exceed $20.0 annually and certain administrative fees.

Schedule of Net Periodic Benefit Cost Not yet Recognized

The amount of (loss) income which is recognized in the Consolidated Balance Sheets (in Accumulated other comprehensive (loss) income) associated with the Company’s Canadian defined benefit pension plan and the VEBAs that have not yet been reflected in net periodic benefit cost as of December 31, 2011 were as follows:

	Canadian Pension Benefits						VEBA Benefits
	December 31, 2011			December 31, 2010			December 31, 2011			December 31, 2010
Accumulated net actuarial (losses) gains	$	(2.0	)	$	(1.8	)	$	(95.1	)	$	14.7
Transition assets	0.4			0.4			—			—
Prior service cost	—			—			(41.1		)	(45.3		)
Loss recognized in Accumulated other comprehensive (loss) income	$	(1.6	)	$	(1.4	)	$	(136.2	)	$	(30.6	)

Schedule of Net Periodic Benefit Costs (Income)

The following table presents the components of net periodic benefit cost (income) for 2011, 2010 and 2009:

	Canadian Pension Benefits									VEBA Benefits
	2011			2010			2009			2011			2010			2009
Service cost	$	0.2		$	0.1		$	0.1		$	2.2		$	2.0		$	2.2
Interest cost	0.3			0.3			0.2			17.4			19.1			18.7
Expected return on plan assets	(0.3		)	(0.2		)	(0.2		)	(30.4		)	(20.9		)	(21.0		)
Amortization of prior service cost2	—			—			—			4.2			4.2			1.6
Amortization of net loss	0.1			—			—			0.6			0.7			3.8
Net periodic benefit costs (income)	$	0.3		$	0.2		$	0.1		$	(6.0	)	$	5.1		$	5.3

__________________________

¹  The Company amortizes prior service cost on a straight-line basis over the average remaining years of service to full eligibility for benefits of the active plan participants.

Schedule of Income (Charges) Related to All Benefit Plans

The following tables present the total (income) charges related to all benefit plans for 2011, 2010 and 2009:

	Year Ended December 31,
	2011			2010		2009
Canadian pension plan	$	0.3		$	0.2	$	0.1
VEBAs	(6.0		)	5.1		5.3
Deferred compensation plan	0.2			1.3		0.4
Defined contribution plans	7.1			6.5		6.5
Total	$	1.6		$	13.1	$	12.3

Allocation of Income (Charges) Relating to Retirement Plans

The following tables present the allocation of these (income) charges:

	Year Ended December 31,
	2011			2010		2009
Fabricated Products	$	6.4		$	6.4	$	5.8
All Other	(4.8		)	6.7		6.5
Total	$	1.6		$	13.1	$	12.3

XML

Summary of Significant Accounting Policies, Textuals (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Accounting policies additional disclosures
Advertising costs	$ 400,000	$ 300,000	$ 400,000
Research and development costs	6,100,000	4,900,000	4,400,000
Original maturity of highly liquid investments, days	90
Period over which accounts receivable is due, days	30
Excess of current cost over the stated LIFO value of inventory	29,400,000	36,400,000
Impairment of the carrying value of goodwill	0	0
Discount rate used in estimating liabilities for worker compensation claims	1.00%	4.75%
Undiscounted workers' compensation liabilities	24,300,000	20,600,000
Margin deposits with counterparties	0	0
Margin deposits from counterparties	0	0
More-likely-than-not threshold for goodwill impairment test	50.00%
5% threshold percentage of Company contribution to total multi-employer pension plan contributions	5.00%	5.00%	5.00%
Performance shares
Accounting policies additional disclosures
Performance award vesting period, years	3
Fabricated Products
Accounting policies additional disclosures
Non-cash LIFO inventory (benefits) charges	$ (7,100,000)	$ 16,500,000	$ 8,700,000

XML

Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2011

Supplemental Cash Flow Elements [Abstract]

Supplemental cash flow information

	Year Ended December 31,
	2011		2010		2009
Supplemental disclosure of cash flow information:
Interest paid	$	10.4	$	6.0	$	2.0
Income taxes paid	$	3.5	$	0.8	$	12.8
Supplemental disclosure of non-cash transactions:
Non-cash capital expenditures	$	1.8	$	1.7	$	5.3
Issuance of Nichols Promissory Note — Note 4	$	—	$	6.7	$	—
Capital leases acquired	$	0.3	$	—	$	—

XML

Income Tax Matters, Effective Tax Rate Reconciliation (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reconciliation between effective income tax provision and statutory income tax provision:
Amount of federal income tax provision based on the statutory rate	$ (14.5)	$ (8.8)	$ (41.5)
(Increase) decrease in federal valuation allowances	0	(0.2)	0.5
Non-deductible compensation expense	(1.1)	(0.6)	(4.7)
Non-deductible expense	(0.4)	(0.3)	(0.5)
State income taxes, net of federal benefit	(0.8)	(4.7)	(1.0)
Foreign income tax benefit	0.6	1.5	0
Other	0	0	(0.9)
Income tax provision	(16.2)	(13.1)	(48.1)
Valuation Allowance [Line Items]
(Decrease) Increase in valuation allowance	(1.3)	2.1	(11.5)
Increase in state and local income tax provision relating to state NOLs	1.2	7.3	1.6
State net operating loss [Member]
Valuation Allowance [Line Items]
(Decrease) Increase in valuation allowance		1.9
Increase in state and local income tax provision relating to state NOLs		$ 2.3

XML

Summary of Significant Accounting Policies,Textuals, Property, Plant and Equipment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Property, Plant and Equipment
Interest expense capitalized as construction in progress	$ 1.3	$ 2.8	$ 2.7
Depreciation expense	23.0	19.5	16.4
Impairment charge	0	4.6	2.3
Land improvements
Property, Plant and Equipment
Estimated useful life of property, plant and equipment, minimum, years	3
Estimate useful life of property, plant and equipment, maximum, years	25
Buildings and leasehold improvements
Property, Plant and Equipment
Estimated useful life of property, plant and equipment, minimum, years	15
Estimate useful life of property, plant and equipment, maximum, years	45
Machinery and Equipment
Property, Plant and Equipment
Estimated useful life of property, plant and equipment, minimum, years	1
Estimate useful life of property, plant and equipment, maximum, years	24
Idled equipment
Property, Plant and Equipment
Impairment charge		2.0
Capital lease assets
Property, Plant and Equipment
Estimate useful life of property, plant and equipment, maximum, years	3
Fabricated Products
Property, Plant and Equipment
Depreciation expense	22.7	19.4	16.2
Impairment charge		3.9
Asset impairment related to restructuring plan
Property, Plant and Equipment
Impairment charge		$ 1.9

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Employee Incentive Plans, Short term Incentive Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Compensation charges associated with STI Plans
Costs recorded in connection with STI plans	$ 8.4	$ 6.8	$ 6.0
Fabricated Products
Compensation charges associated with STI Plans
Costs recorded in connection with STI plans	5.9	4.8	4.7
All Other
Compensation charges associated with STI Plans
Costs recorded in connection with STI plans	2.5	2.0	1.3
Cost of products sold
Compensation charges associated with STI Plans
Costs recorded in connection with STI plans	3.2	2.9	2.8
Selling, administrative, research and development and general
Compensation charges associated with STI Plans
Costs recorded in connection with STI plans	$ 5.2	$ 3.9	$ 3.2

XML

Segment and Geographical Area Information (Tables)

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Summary of financial information by operating segment

The following tables provide financial information by operating segment for each period or as of each period-end, as applicable:

	Year Ended December 31,
	2011			2010			2009
Net Sales:
Fabricated Products	$	1,301.3		$	1,078.8		$	897.1
All Other1	—			0.3			89.9
Total net sales	$	1,301.3		$	1,079.1		$	987.0
Segment Operating Income (Loss):
Fabricated Products 2,3	$	83.6		$	81.7		$	148.4
All Other4	(28.6		)	(40.6		)	(29.7		)
Total operating income	$	55.0		$	41.1		$	118.7
Interest expense	(18.0		)	(11.8		)	—
Other income (expense), net	4.3			(4.2		)	(0.1		)
Income before income taxes	$	41.3		$	25.1		$	118.6
Depreciation and Amortization:
Fabricated Products	$	24.8		$	19.4		$	16.2
All Other	0.4			0.4			0.2
Total depreciation and amortization	$	25.2		$	19.8		$	16.4
Capital expenditures:
Fabricated Products	$	32.1		$	38.0		$	58.5
All Other	0.4			0.9			0.7
Total capital expenditures	$	32.5		$	38.9		$	59.2

	December 31, 2011		December 31, 2010
Segment assets:
Fabricated Products	$	637.0	$	525.3
All Other5	683.6		793.6
Total assets	$	1,320.6	$	1,318.9

______________________

1 Net sales in All Other in 2010 represent residual activity involving primary aluminum purchased by the Company from Anglesey while it continued its smelting operations, prior to September 30, 2009, and resold by the Company in the first quarter of 2010. In connection with Anglesey’s remelt operations beginning in the fourth quarter of 2009, the Company changed its basis of revenue recognition from gross to a net basis (see Note 1).

2 Operating results in the Fabricated Products segment for 2011, 2010 and 2009 included non-cash LIFO inventory (benefits) charges of $(7.1), $16.5 and $8.7, respectively. Also included in the Fabricated Products segment operating results for 2009 were $9.3 of lower of cost or market inventory write-down and $5.4 of restructuring charges relating to the restructuring plans involving the Company's Tulsa, Oklahoma and Bellwood, Virginia facilities. Restructuring charges in 2011 and 2010 were not material. Also included in the Fabricated Products segment operating results for 2011, 2010 and 2009 were $1.7, $13.6 and $0.7, respectively, of environmental expense. Fabricated Products segment operating results for 2010 also included $3.9 of asset impairment charge relating to certain Property, plant and equipment.

3 Fabricated Products segment results for 2011, 2010 and 2009 include non-cash mark-to-market (losses) gains on primary aluminum, natural gas, electricity and foreign currency hedging activities totaling $(29.9), $(0.7) and $66.1, respectively. For further discussion regarding mark-to-market matters, see Note 12.

4 Operating results of All Other for 2009 include non-cash mark-to-market gain on foreign currency derivatives of $14.4. Also included in the operating income of All Other were $1.8 of impairment charges in 2009 relating to the Company's investment in Anglesey.

5 Assets in All Other represent primarily all of the Company’s cash and cash equivalents, financial derivative assets, net assets in respect of VEBA(s) and net deferred income tax assets.

Schedule Of Net Sales From External Customers And Incoem Taxes Paid By Geographical Areas

Geographic information for net sales, based on country of origin, and income taxes paid are as follows:

	Year Ended December 31,
	2011		2010		2009
Net sales to unaffiliated customers:
Fabricated Products —
United States	$	1,195.1	$	991.2	$	840.1
Canada	106.2		87.6		57.0
Total Fabricated Products net sales	1,301.3		1,078.8		897.1
All Other —
United Kingdom	—		0.3		89.9
Total All Other net sales	—		0.3		89.9
Total net sales	$	1,301.3	$	1,079.1	$	987.0
Income Taxes Paid:
Fabricated Products —
United States	$	1.7	$	0.1	$	4.0
Canada	1.8		0.7		8.8
Total income taxes paid	$	3.5	$	0.8	$	12.8

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Supplemental Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2011

Supplemental Balance Sheet Information [Abstract]

Trade Receivables

	December 31, 2011			December 31, 2010
Trade Receivables.
Billed trade receivables	$	98.9		$	82.5
Unbilled trade receivables — Note 1	0.9			1.1
Trade receivables, gross	99.8			83.6
Allowance for doubtful receivables	(0.9		)	(0.6		)
Trade receivables, net	$	98.9		$	83.0

Inventories

Inventories.
Finished products	$	75.9	$	53.8
Work in process	57.5		49.6
Raw materials	58.1		50.9
Operating supplies and repairs and maintenance parts	14.2		13.2
Total	$	205.7	$	167.5

Prepaid Expenses and Other Current Assets

Prepaid Expenses and Other Current Assets.
Current derivative assets — Notes 12 and 13	$	—	$	22.1
Current deferred tax assets	63.0		46.8
Current portion of option premiums paid - Notes 12 and 13	0.4		5.6
Short-term restricted cash	7.8		0.9
Prepaid taxes	3.8		1.3
Prepaid expenses	3.9		3.4
Total	$	78.9	$	80.1

Property, Plant and Equipment

Property, Plant and Equipment.
Land and land improvements	$	22.6		$	23.3
Buildings and leasehold improvements	45.9			43.5
Machinery and equipment	356.7			338.0
Construction in progress	24.1			7.7
Active property, plant and equipment, gross	449.3			412.5
Accumulated depreciation	(86.9		)	(63.9		)
Active property, plant, and equipment, net	362.4			348.6
Idled equipment	5.4			5.5
Property, plant, and equipment, net	$	367.8		$	354.1

Other Assets

Other Assets.
Derivative assets — Notes 12 and 13	$	46.2	$	50.8
Option premiums paid — Notes 12 and 13	0.1		0.6
Restricted cash	10.4		16.3
Long-term income tax receivable	2.8		2.9
Deferred financing costs	7.8		7.7
Available for sale securities	4.9		4.6
Other	0.1		0.1
Total	$	72.3	$	83.0

Other Accrued Liabilities

Other Accrued Liabilities.
Current derivative liabilities — Notes 12 and 13	$	14.8	$	8.9
Current portion of option premiums received — Notes 12 and 13	0.1		7.0
Current portion of income tax liabilities	—		1.1
Accrued income taxes and taxes payable	2.6		1.8
Accrued annual VEBA contribution	—		2.1
Accrued freight	2.4		1.9
Short-term environmental accrual — Note 11	1.2		1.1
Accrued interest	2.3		2.1
Short-term deferred revenue — Note 1	13.5		10.8
Other	4.1		5.2
Total	$	41.0	$	42.0

Long-term Liabilities

Long-term Liabilities.
Derivative liabilities — Notes 12 and 13	$	55.5	$	62.2
Option premiums received — Notes 12 and 13	0.1		0.3
Income tax liabilities	13.4		12.9
Workers’ compensation accruals	20.8		15.9
Long-term environmental accrual — Note 11	20.8		19.1
Long-term asset retirement obligations	3.8		3.8
Long-term deferred revenue - Note 1	3.3		13.2
Deferred compensation liability	5.1		4.9
Other long-term liabilities	3.2		2.4
Total	$	126.0	$	134.7

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Employee Incentive Plans, Long term Incentive Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 years	Dec. 31, 2010 years	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares authorized for issuance under Equity Incentive Plan	2,722,222
Number of common shares available for additional awards under Equity Incentive Plan	845,499
Total non-cash compensation expense	$ 5.2	$ 4.5	$ 9.1
Summary of Activity
Total grant-date fair value of shares granted	12.8	10.5	9.6
Total grant-date fair value of shares vested	6.3	2.6	21.6
Stock Options
Fully-vested options outstanding	20,791	22,077
Exercise price of options to purchase common stock	$ 80.01	$ 80.01
Remaining contractual life of options outstanding	5.25	6.25
Stock options expired	1,286
Grant date fair value of options outstanding	$ 39.90
Stock options granted	0
Stock options forfeited	0
Stock options exercised	0
Vested Stock
Share-based compensation expense relating to common shares granted to non-employee directors in lieu of annual retainer	0.2	0.2	0.1
Common shares withheld and canceled	62,637	11,729	0
Fabricated Products
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash compensation expense	1.5	1.4	3.5	[1]
Stock compensation expense relating to restructuring activities			0.8
All Other
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash compensation expense	3.7	3.1	5.6
Non-vested common shares
Summary of Activity
Outstanding at December 31, 2010, Shares	268,864
Outstanding at December 31, 2010, Weighted-Average Grant-Date Fair Value per Share	$ 27.91
Granted, shares	83,066
Granted, Weighted-Average Grant-Date Fair Value per Share	$ 47.07
Vested, shares	(146,205)
Vested, Weighted-Average Grant-Date Fair Value per Share	$ 36.84
Forfeited, shares	(2,889)
Forfeited, Weighted-Average Grant-Date Fair Value per Share	$ 33.47
Canceled, Shares	0
Canceled, Weighted-Average Grant-Date Fair Value per Share	$ 0.00
Outstanding at December 31, 2011, Shares	202,836
Outstanding at December 31, 2011, Weighted-Average Grant-Date Fair Value per Share	$ 29.24
Non-vested common shares | Non-employee directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period, years	1
Non-vested common shares | Executive officers and senior management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period, years	3
Non-vested common shares | Other key employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period, years	3
Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common share received by the employee on vesting of restricted stock unit	1
Summary of Activity
Outstanding at December 31, 2010, Shares	7,872
Outstanding at December 31, 2010, Weighted-Average Grant-Date Fair Value per Share	$ 21.74
Granted, shares	2,182
Granted, Weighted-Average Grant-Date Fair Value per Share	$ 46.59
Vested, shares	(3,982)
Vested, Weighted-Average Grant-Date Fair Value per Share	$ 17.16
Forfeited, shares	0
Forfeited, Weighted-Average Grant-Date Fair Value per Share	$ 0.00
Canceled, Shares	0
Canceled, Weighted-Average Grant-Date Fair Value per Share	$ 0.00
Outstanding at December 31, 2011, Shares	6,072
Outstanding at December 31, 2011, Weighted-Average Grant-Date Fair Value per Share	$ 33.67
Service-based non-vested common shares and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash compensation expense	4.1	3.6	7.9
Unrecognized gross compensation costs, by award type	3.1
Expected period (in years) over which the remaining gross compensation costs will be recognized, by award type	1.7
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period, years	3
Total non-cash compensation expense	1.1	0.8	0.9
Unrecognized gross compensation costs, by award type	3.1
Expected period (in years) over which the remaining gross compensation costs will be recognized, by award type	2.0
Summary of Activity
Outstanding at December 31, 2010, Shares	686,895
Outstanding at December 31, 2010, Weighted-Average Grant-Date Fair Value per Share	$ 26.84
Granted, shares	188,741
Granted, Weighted-Average Grant-Date Fair Value per Share	$ 46.65
Vested, shares	(13,462)
Vested, Weighted-Average Grant-Date Fair Value per Share	$ 62.83
Forfeited, shares	(15,441)
Forfeited, Weighted-Average Grant-Date Fair Value per Share	$ 26.24
Canceled, Shares	(68,799)
Canceled, Weighted-Average Grant-Date Fair Value per Share	$ 74.34
Outstanding at December 31, 2011, Shares	777,934	686,895
Outstanding at December 31, 2011, Weighted-Average Grant-Date Fair Value per Share	$ 26.84	$ 26.84
Service-based stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash compensation expense	$ 0	$ 0.1	$ 0.3
French Subsidiary | Restricted stock units (RSUs) | Second anniversary of the grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based award vesting schedule	.67
French Subsidiary | Restricted stock units (RSUs) | Third anniversary of the grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based award vesting schedule	.33
Non-French Subsidiary | Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period, years	3
Non-French Subsidiary | Restricted stock units (RSUs) | First anniversary of the grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based award vesting schedule	.33
Non-French Subsidiary | Restricted stock units (RSUs) | Second anniversary of the grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based award vesting schedule	.33
Non-French Subsidiary | Restricted stock units (RSUs) | Third anniversary of the grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based award vesting schedule	.33

[1] Of the $3.5 compensation charge allocated to the Fabricated Products segment in 2009, $0.8 of the amount relates to the accelerated vesting of previously granted stock-based payments in connection with the Company's restructuring efforts in 2009 (see Note 16).

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Income Tax Matters, Tax Uncertainties (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reconciliation of changes in the gross unrecognized tax benefits:
Gross unrecognized tax benefits	$ 15.0	$ 15.6	$ 15.8
Gross increases for tax positions of prior years	0.1	0	1.6
Gross decreases for tax positions of prior years	0	0	(1.6)
Gross increases for tax positions of current years	0.4	0.4	0.4
Settlements	(0.5)	0	(2.8)
Gross decrease for tax positions relating to lapse of a statute of limitation	(0.9)	(1.7)	0
Foreign currency translation	(0.4)	0.7	2.2
Gross unrecognized tax benefits	13.7	15.0	15.6
Unrecognized tax benefits, income tax penalties and interest accrued:
Payment relating to Canadian Provincial income tax assessment	1.3		7.9
Increase (decrease) in interest and penalty	0	0.4	(3.2)
Accrued interest and penalty on unrecognized tax benefits	6.6	6.6
Foreign currency impact on gross unrecognized tax benefit including interest and penalty	0.2	(0.5)	(1.5)
Accrued interest and penalty on unrecognized tax benefits, current	0	0.4
FIN 48 [Member]
Unrecognized tax benefits, income tax penalties and interest accrued:
Foreign currency impact on gross unrecognized tax benefit including interest and penalty	$ 0.3	$ (0.6)	$ (2.7)

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Earnings Per Share, Calculation of EPS (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Numerator:
Net income	$ 6.1	$ 4.1	$ 4.1	$ 10.8	$ (0.9)	$ 5.0	$ (0.4)	$ 8.3	$ 25.1	[1]	$ 12.0		$ 70.5
Less: Net income attributable to participating securities									0	[2]	(0.1)	[2]	(1.6)	[2]
Net income available to common stockholders									25.1		11.9		68.9
Denominator - Weighted-average common shares outstanding (000):
Basic									18,979	[3]	19,377	[3]	19,639	[3]
Diluted									18,979	[3]	19,377	[3]	19,639	[3]
Earnings per common share, Basic:
Net income per share	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61		$ 3.51
Earnings per common share, Diluted:
Net income per share	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61		$ 3.51
Net income attributable to participating securities:
Distributed income									0		0.1		0.4
Undistributed income									0		0		1.2
Total net income attributable to participating securities									$ 0	[2]	$ (0.1)	[2]	$ (1.6)	[2]
Percentage of undistributed net income apportioned to participating securities									0.00%		0.00%		2.00%

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

[2] Net income attributable to participating securities for a given period includes both distributed and undistributed net income, as applicable. Distributed net income attributed to participating securities represents dividend and dividend equivalents declared on the participating securities that the Company expects to ultimately vest. Undistributed net income for a given period, if any, is apportioned to participating securities based on the weighted-average number of each class of securities outstanding during the applicable period as a percentage of the combined weighted-average number of these securities outstanding during the period. Undistributed losses are not allocated to participating securities, however, as holders of such securities do not have an obligation to fund net losses of the Company.

[3] The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The diluted weighted-average number of common shares outstanding during the period is calculated under the two-class method, which does not take into account the dilutive effect of the unvested share-based payment awards.

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Cash Convertible Senior Notes and Related Transactions, Carrying Amount Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010
Principal amount, carrying amount and interest expense of notes
Carrying amount, net of discount	$ 148.0		$ 141.4
Convertible Debt
Principal amount, carrying amount and interest expense of notes
Principal amount	175.0		175.0
Less: unamortized issuance discount	(27.0)		(33.6)
Carrying amount, net of discount	148.0		141.4
Contractual coupon interest	8.4		6.0
Amortization of discount and deferred financing costs	7.8		5.3
Total interest expense	$ 16.2	[1]	$ 11.3	[1]

[1] A portion of the interest relating to the Notes is capitalized as Construction in progress.

XML

Employee Benefits, Net Periodic Benefit Costs and Charges Relating To Other Benefit Plans(Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net Periodic Benefit Costs and Charges Relating to Other Benefit Plans [Line Items]
Net periodic benefit costs (income)	$ (5.7)	$ 5.1	$ 5.3
Deferred compensation plan	0.2	1.3	0.4
Defined contribution plans	7.1	6.5	6.5
Total	1.6	13.1	12.3
Fabricated Products
Net Periodic Benefit Costs and Charges Relating to Other Benefit Plans [Line Items]
Total	6.4	6.4	5.8
All Other
Net Periodic Benefit Costs and Charges Relating to Other Benefit Plans [Line Items]
Total	(4.8)	6.7	6.5
Canadian pension plan
Net Periodic Benefit Costs and Charges Relating to Other Benefit Plans [Line Items]
Net periodic benefit costs (income)	0.3	0.2	0.1
VEBAs
Net Periodic Benefit Costs and Charges Relating to Other Benefit Plans [Line Items]
Net periodic benefit costs (income)	$ (6.0)	$ 5.1	$ 5.3

XML

Fair Value Measurements, Fair Value Hierarchy Table (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Financial Assets:
Investment Percentage in Industrial Sector	53.00%		53.00%
Investment Percentage in Financial Sector	38.00%		36.00%
Investment Percentage in Utilities Sector	9.00%		11.00%
Fair Value, Measurements, Recurring [Member]
Financial Assets:
Cash and cash equivalents	49.8		135.6
Available for sale securities	4.9		4.6
Total Assets	677.3		728.8
Financial Liabilities:
Notes	(203.0)		(214.7)
Total Liabilities	(278.2)		(306.1)
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Fixed income investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	413.3	[1]	299.1	[1]
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Mortgage backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	33.9		81.7
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Corporate debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	39.1	[2]	47.6	[2]
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Equity investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	52.3	[3]	32.8	[3]
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | United States Treasuries
Financial Assets:
VEBAs and Canadian Pension Plan Assets	1.6		15.0
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Municipal debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	6.3		7.1
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Cash and money market investments
Financial Assets:
VEBAs and Canadian Pension Plan Assets	12.1	[4]	11.2	[4]
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Asset backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	5.0		10.1
Fair Value, Measurements, Recurring [Member] | VEBAs and Canadian Pension Plan | Diversified investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	12.3	[5]	4.9	[5]
Fair Value, Measurements, Recurring [Member] | Aluminum | Call option purchase contracts
Financial Assets:
Derivative Assets			9.3
Fair Value, Measurements, Recurring [Member] | Aluminum | Put option purchase contracts
Financial Assets:
Derivative Assets			0.1
Fair Value, Measurements, Recurring [Member] | Aluminum | Fixed priced purchase contracts
Financial Assets:
Derivative Assets	0.3		18.2
Financial Liabilities:
Derivative Liabilities	(7.8)		(0.4)
Fair Value, Measurements, Recurring [Member] | Aluminum | Fixed priced sales contracts
Financial Liabilities:
Derivative Liabilities			(3.4)
Fair Value, Measurements, Recurring [Member] | Aluminum | Midwest premium swap contracts
Financial Assets:
Derivative Assets	0.1		0.2
Financial Liabilities:
Derivative Liabilities	(0.1)		(0.1)
Fair Value, Measurements, Recurring [Member] | Aluminum | Call option sales contracts
Financial Liabilities:
Derivative Liabilities			(9.3)
Fair Value, Measurements, Recurring [Member] | Aluminum | Put option sales contracts
Financial Liabilities:
Derivative Liabilities			(0.1)
Fair Value, Measurements, Recurring [Member] | Natural Gas | Call option purchase contracts
Financial Assets:
Derivative Assets			0.3
Fair Value, Measurements, Recurring [Member] | Natural Gas | Put option purchase contracts
Financial Assets:
Derivative Assets			2.5
Fair Value, Measurements, Recurring [Member] | Natural Gas | Fixed priced purchase contracts
Financial Assets:
Derivative Assets			0.1
Financial Liabilities:
Derivative Liabilities	(1.3)		(0.5)
Fair Value, Measurements, Recurring [Member] | Natural Gas | Put option sales contracts
Financial Liabilities:
Derivative Liabilities	(5.6)		(4.6)
Fair Value, Measurements, Recurring [Member] | Electricity | Fixed priced purchase contracts
Financial Liabilities:
Derivative Liabilities	(1.8)
Fair Value, Measurements, Recurring [Member] | Hedges Relating to the Notes | Call Options
Financial Assets:
Derivative Assets	46.3		48.4
Fair Value, Measurements, Recurring [Member] | Hedges Relating to the Notes | Bifurcated Conversion Feature
Financial Liabilities:
Derivative Liabilities	(53.9)		(60.0)
Fair Value, Measurements, Recurring [Member] | Level 1
Financial Assets:
Cash and cash equivalents	49.8		135.6
Available for sale securities	0		0
Total Assets	61.9		146.8
Financial Liabilities:
Notes	(203.0)		(214.7)
Total Liabilities	(203.0)		(214.7)
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Fixed income investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Mortgage backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Corporate debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Equity investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | United States Treasuries
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Municipal debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Cash and money market investments
Financial Assets:
VEBAs and Canadian Pension Plan Assets	12.1	[4]	11.2	[4]
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Asset backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | VEBAs and Canadian Pension Plan | Diversified investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Call option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Put option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Fixed priced purchase contracts
Financial Assets:
Derivative Assets	0		0
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Fixed priced sales contracts
Financial Liabilities:
Derivative Liabilities			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Midwest premium swap contracts
Financial Assets:
Derivative Assets	0		0
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Call option sales contracts
Financial Liabilities:
Derivative Liabilities			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Aluminum | Put option sales contracts
Financial Liabilities:
Derivative Liabilities			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Natural Gas | Call option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Natural Gas | Put option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 1 | Natural Gas | Fixed priced purchase contracts
Financial Assets:
Derivative Assets			0
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | Natural Gas | Put option sales contracts
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | Electricity | Fixed priced purchase contracts
Financial Liabilities:
Derivative Liabilities	0
Fair Value, Measurements, Recurring [Member] | Level 1 | Hedges Relating to the Notes | Call Options
Financial Assets:
Derivative Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 1 | Hedges Relating to the Notes | Bifurcated Conversion Feature
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 2
Financial Assets:
Cash and cash equivalents	0		0
Available for sale securities	4.9		4.6
Total Assets	615.3		581.8
Financial Liabilities:
Notes	0		0
Total Liabilities	(75.1)		(91.3)
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Fixed income investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	413.3	[1]	299.1	[1]
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Mortgage backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	33.9		81.7
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Corporate debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	39.1	[2]	47.6	[2]
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Equity investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	52.3	[3]	32.8	[3]
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | United States Treasuries
Financial Assets:
VEBAs and Canadian Pension Plan Assets	1.6		15.0
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Municipal debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	6.3		7.1
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Cash and money market investments
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Asset backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	5.0		10.1
Fair Value, Measurements, Recurring [Member] | Level 2 | VEBAs and Canadian Pension Plan | Diversified investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	12.3	[5]	4.9	[5]
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Call option purchase contracts
Financial Assets:
Derivative Assets			9.3
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Put option purchase contracts
Financial Assets:
Derivative Assets			0.1
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Fixed priced purchase contracts
Financial Assets:
Derivative Assets	0.3		18.2
Financial Liabilities:
Derivative Liabilities	(7.8)		(0.4)
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Fixed priced sales contracts
Financial Liabilities:
Derivative Liabilities			(3.4)
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Midwest premium swap contracts
Financial Assets:
Derivative Assets	0		0
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Call option sales contracts
Financial Liabilities:
Derivative Liabilities			(9.3)
Fair Value, Measurements, Recurring [Member] | Level 2 | Aluminum | Put option sales contracts
Financial Liabilities:
Derivative Liabilities			(0.1)
Fair Value, Measurements, Recurring [Member] | Level 2 | Natural Gas | Call option purchase contracts
Financial Assets:
Derivative Assets			0.3
Fair Value, Measurements, Recurring [Member] | Level 2 | Natural Gas | Put option purchase contracts
Financial Assets:
Derivative Assets			2.5
Fair Value, Measurements, Recurring [Member] | Level 2 | Natural Gas | Fixed priced purchase contracts
Financial Assets:
Derivative Assets			0.1
Financial Liabilities:
Derivative Liabilities	(1.3)		(0.5)
Fair Value, Measurements, Recurring [Member] | Level 2 | Natural Gas | Put option sales contracts
Financial Liabilities:
Derivative Liabilities	(5.6)		(4.6)
Fair Value, Measurements, Recurring [Member] | Level 2 | Electricity | Fixed priced purchase contracts
Financial Liabilities:
Derivative Liabilities	(1.8)
Fair Value, Measurements, Recurring [Member] | Level 2 | Hedges Relating to the Notes | Call Options
Financial Assets:
Derivative Assets	46.3		48.4
Fair Value, Measurements, Recurring [Member] | Level 2 | Hedges Relating to the Notes | Bifurcated Conversion Feature
Financial Liabilities:
Derivative Liabilities	(53.9)		(60.0)
Fair Value, Measurements, Recurring [Member] | Level 3
Financial Assets:
Cash and cash equivalents	0		0
Available for sale securities	0		0
Total Assets	0.1		0.2
Financial Liabilities:
Notes	0		0
Total Liabilities	(0.1)		(0.1)
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Fixed income investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Mortgage backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Corporate debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Equity investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | United States Treasuries
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Municipal debt securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Cash and money market investments
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Asset backed securities
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | VEBAs and Canadian Pension Plan | Diversified investment funds in registered investment companies
Financial Assets:
VEBAs and Canadian Pension Plan Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Call option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Put option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Fixed priced purchase contracts
Financial Assets:
Derivative Assets	0		0
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Fixed priced sales contracts
Financial Liabilities:
Derivative Liabilities			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Midwest premium swap contracts
Financial Assets:
Derivative Assets	0.1		0.2
Financial Liabilities:
Derivative Liabilities	(0.1)		(0.1)
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Call option sales contracts
Financial Liabilities:
Derivative Liabilities			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Aluminum | Put option sales contracts
Financial Liabilities:
Derivative Liabilities			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Natural Gas | Call option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Natural Gas | Put option purchase contracts
Financial Assets:
Derivative Assets			0
Fair Value, Measurements, Recurring [Member] | Level 3 | Natural Gas | Fixed priced purchase contracts
Financial Assets:
Derivative Assets			0
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | Natural Gas | Put option sales contracts
Financial Liabilities:
Derivative Liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | Electricity | Fixed priced purchase contracts
Financial Liabilities:
Derivative Liabilities	0
Fair Value, Measurements, Recurring [Member] | Level 3 | Hedges Relating to the Notes | Call Options
Financial Assets:
Derivative Assets	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 | Hedges Relating to the Notes | Bifurcated Conversion Feature
Financial Liabilities:
Derivative Liabilities	0		0
Los Angeles Promissory Note | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Promissory Note			(7.0)
Los Angeles Promissory Note | Fair Value, Measurements, Recurring [Member] | Level 1
Financial Liabilities:
Promissory Note			0
Los Angeles Promissory Note | Fair Value, Measurements, Recurring [Member] | Level 2
Financial Liabilities:
Promissory Note			(7.0)
Los Angeles Promissory Note | Fair Value, Measurements, Recurring [Member] | Level 3
Financial Liabilities:
Promissory Note			0
Nichols Promissory Note | Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Promissory Note	(4.7)		(6.0)
Nichols Promissory Note | Fair Value, Measurements, Recurring [Member] | Level 1
Financial Liabilities:
Promissory Note	0		0
Nichols Promissory Note | Fair Value, Measurements, Recurring [Member] | Level 2
Financial Liabilities:
Promissory Note	(4.7)		(6.0)
Nichols Promissory Note | Fair Value, Measurements, Recurring [Member] | Level 3
Financial Liabilities:
Promissory Note	0		0

[1] This category represents investments in various fixed income funds with multiple registered investment companies. Such funds invest in diversified portfolios, including (a) marketable fixed income securities such as (i) U.S. Treasury and other government issued debt securities, (ii) mortgage backed securities, (iii) asset backed securities, (iv) corporate bonds, notes and debentures in various sectors, (v) preferred stock, (vi) various deposit accounts and (vii) repurchase agreements and reverse repurchase agreements, (b) higher yielding, non-investment-grade fixed income securities in the high yield market, (c) debt securities of issuers located in countries with new or emerging markets, denominated in U.S. dollars or other foreign currencies and (d) fixed income instruments which may be represented by options, future contracts or swap agreements. The fair value of assets in this category is estimated using the net asset value per share of the investments.

[2] This category represents investments in fixed income corporate securities in various sectors. Investments in the industrial, financial and utilities sectors in 2011 represented approximately 53%, 38% and 9% of the total portfolio in this category, respectively. Investments in the industrial, financial and utilities sectors in 2010 represented approximately 53%, 36% and 11% of the total portfolio in this category, respectively. The fair value of assets in this category is estimated using the net asset value per share of the investments.

[3] This category represents investments in equity funds that invest in portfolios comprised of (i) equity securities of U.S. companies with a certain market capitalization threshold, (ii) American Depositary Receipts, or ADRs, for securities of non-U.S. issuers, and (iii) securities whose principal market is outside of U.S. The fair value of assets in this category is estimated using the net asset value per share of the investments. The fair value of assets in this category is estimated using the net asset value per share of the investments.

[4] This category represents cash and investments in various money market funds.

[5] The plan assets are invested in investment funds that hold a diversified portfolio of U.S and international equity securities and fixed income securities such as corporate bonds, government bonds, mortgage and asset backed securities. The fair value of assets in this category is estimated using the net asset value per share of the investments.

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Commitments and Contingencies, Environmental Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Accrual for Environmental Loss Contingencies Roll Forward
Beginning balance	$ 20.2	$ 9.7	$ 9.6
Additional accruals	3.9	13.9	2.4
Less expenditures	(2.1)	(3.4)	(2.3)
Ending balance	22.0	20.2	9.7
Accrual for Environmental Loss Contingencies
Environmental accrual to be spent in 2012	1.2
Environmental accrual to be spent in 2013	3.6
Environmental accrual to be spent in 2014	1.8
Environmental accrual to be spent in 2015	0.8
Environmental accrual to be spent in 2016	0.6
Environmental accrual to be spent in 2017 and years thereafter	14.0
Environmental contingency loss exposure in excess of accrual	$ 21.7
Expected period related to remediation expenditures for environmental contingencies	30 years
Expected period related to excess environmental costs over current accruals	30 years
Time period within which Companys recorded estimate of its obligation may change	12 months

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Fair Value Measurements, Level 3 Fair Value Input Reconciliation Table (Details) (Derivative [Member], Midwest premium swap contracts, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Derivative [Member] | Midwest premium swap contracts
Reconciliation of activity for financial instruments classified as Level 3:
Balance at December 31, 2010	$ 0.1
Total realized/unrealized losses included in:
Cost of goods sold excluding depreciation expense	1.4
Transactions involving Level 3 derivative contracts:
Purchases	0
Sales	0
Issuances	0
Settlements	(1.5)
Transactions involving Level 3 derivatives - net	(1.5)
Transfers in and (or) out of Level 3 valuation hierarchy	0
Balance at December 31, 2011	0
Total gains included in earnings attributable to the change in unrealized losses relating to derivative contracts held at December 31, 2011	$ 0

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Multiemployer Pension Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Multiemployer Pension Plan Disclosure [Line Items]
Contributions of the Company	$ 3,600,000		$ 3,300,000		$ 3,300,000
5% threshold percentage of Company contribution to total multi-employer pension plan contributions	5.00%		5.00%		5.00%
Minimum
Multiemployer Pension Plan Disclosure [Line Items]
Green zone status percent funded threshold	80.00%
Maximum
Multiemployer Pension Plan Disclosure [Line Items]
Red zone status percent funded threshold	65.00%
Yellow zone status percent funded threshold	80.00%
Multiemployer Pension Plans | Minimum
Multiemployer Pension Plan Disclosure [Line Items]
Estimated annual contribution to pension and other postretirement benefit plans	2,000,000
Multiemployer Pension Plans | Maximum
Multiemployer Pension Plan Disclosure [Line Items]
Estimated annual contribution to pension and other postretirement benefit plans	4,000,000
USW Plan
Multiemployer Pension Plan Disclosure [Line Items]
Contributions of the Company	2,600,000	[1]	2,400,000	[1]	2,300,000	[1]
Number of collective-bargaining agreements	3
Monthly contributions per hour worked by each bargaining unit employee	1.00
USW Plan | Newark, Ohio and Spokane, Washington Facilities
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	80.00%
USW Plan | Newark, Ohio and Spokane, Washington Facilities | Starting July 2010 Until July 2015
Multiemployer Pension Plan Disclosure [Line Items]
Monthly contributions per hour worked by each bargaining unit employee	1.25
USW Plan | Newark, Ohio and Spokane, Washington Facilities | Starting July 2015
Multiemployer Pension Plan Disclosure [Line Items]
Monthly contributions per hour worked by each bargaining unit employee	1.50
USW Plan | Bellwood, Virginia Facility
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	14.00%
USW Plan | Florence, Alabama Facility
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	6.00%
Monthly contributions per hour worked by each bargaining unit employee	1.25
USW Plan | Chandler, Arizona (Tube) and Kalamazoo, Michigan Facilities
Multiemployer Pension Plan Disclosure [Line Items]
Number of collective-bargaining agreements	2
IAM Plan
Multiemployer Pension Plan Disclosure [Line Items]
Contributions of the Company	300,000	[2]	300,000	[2]	400,000	[2]
Number of collective-bargaining agreements	2
Monthly contributions per hour worked by each bargaining unit employee	1.00
IAM Plan | Bellwood, Virginia Facility
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	11.00%
IAM Plan | Sherman, Texas Facility
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	89.00%
Teamsters Plan
Multiemployer Pension Plan Disclosure [Line Items]
Contributions of the Company	300,000	[3]	200,000	[3]	300,000	[3]
Teamsters Plan | Los Angeles, California Facility
Multiemployer Pension Plan Disclosure [Line Items]
Monthly contributions per hour worked by each bargaining unit employee	1.00
Canada Wide Industrial Pension Plan
Multiemployer Pension Plan Disclosure [Line Items]
Contributions of the Company	400,000	[4]	400,000	[4]	300,000	[4]
Canada Wide Industrial Pension Plan | London, Ontario Facility
Multiemployer Pension Plan Disclosure [Line Items]
Monthly contributions per hour worked by each bargaining unit employee	$ 1.15

[1] The Company is party to three collective-bargaining agreements that require contributions to the Steelworkers Pension Trust. Current union contracts covering employees at the Newark, Ohio and Spokane, Washington facilities, Florence, Alabama facility and Richmond (Bellwood), Virginia facility expire in September 2015, March 2014 and November 2014, respectively. Of the three, the union contract covering employees at the Newark, Ohio and Spokane, Washington facilities is more significant because 80% of the Company's USW-represented employees are covered by that agreement. The union contracts covering employees at the Bellwood, Virginia facility and Florence, Alabama facility cover 14% and 6% of the Company's USW-related employees, respectively. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the Steelworkers Pension Trust except that (i) the monthly contributions per hour worked by each bargaining unit employee at the Company’s Newark, Ohio and Spokane, Washington facilities increased to (in whole dollars) $1.25 starting July 2010 and will increase to (in whole dollars) $1.50 in July 2015 and (ii) monthly contributions per hour worked by each bargaining unit employee at at the Florence, Alabama facility are (in whole dollars) $1.25 per hour. The Company is also party to two other collective-bargaining agreements covering employees at the Chandler, Arizona (Tube) and Kalamazoo, Michigan facilities. However, these agreements do not require contributions from the Company to the Steelworkers Pension Trust because the employees at these facilities are covered under the Company's defined contribution 401(k) savings plan.

[2] The Company is party to two significant collective-bargaining agreements that require contributions to the National Pension Plan. Current union contracts covering employees at the Richmond (Bellwood), Virginia, and Sherman, Texas facilities expire in November 2014 and December 2013, respectively. Of the two, the union contract covering employees at the Sherman, Texas facility is more significant because 89% of the Company's IAM-represented employees are covered by that agreement. The union contract covering employees at the Richmond (Bellwood), Virginia facility covers 11% of the Company's IAM-represented employees. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the National Pension Plan.

[3] The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee at the Los Angeles, California facility to the Western Conference of Teamsters Pension Plan.

[4] The Company makes monthly contributions of (in whole dollars) $1.15 per hour worked by each bargaining unit employee at the London, Ontario facility to the Canada Wide Industrial Pension Plan. Information relating to the Pension Protection Act zone status, FIP/RIP status and surcharge imposed are not applicable to this plan because it is a Canadian plan that does not follow the same regulations as plans that are U.S. based.

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Income Tax Matters, Components of Deferred Tax Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Deferred income tax assets:
Loss and credit carryforwards	$ 375.6	$ 379.6
VEBAs	0	0.8
Other assets	39.6	25.9
Inventories and other	8.3	27.3
Valuation allowances	(18.8)	(20.1)
Total deferred income tax assets - net	404.7	413.5
Deferred income tax liabilities:
Property, plant and equipment	(67.2)	(61.9)
VEBAs	(47.6)	(59.5)
Total deferred income tax liabilities	(114.8)	(121.4)
Net deferred income tax assets	289.9	292.1
Net deferred income tax assets, current	63.0	46.8
Net deferred income tax assets, long term	$ 226.9	$ 245.3

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Restructuring and Other Exit Activities

12 Months Ended

Dec. 31, 2011

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure

Restructuring and Other Exit Activities

During 2008 and 2009, the Company closed the Tulsa, Oklahoma facility and curtailed operations at the Bellwood, Virginia facility to focus solely on drive shaft and seamless tube products. These restructuring efforts were substantially completed by the end of 2009. Restructuring costs and other charges were $5.4 in 2009 primarily related to employee termination costs. The Company recorded an immaterial amount of restructuring benefits in 2010 primarily related to $1.0 of revisions of estimated employee termination costs, offset by an additional restructuring charge of $0.7 relating to the impairment of certain Construction in Progress assets. Restructuring benefits in 2011 were $0.3 primarily reflecting revisions of estimated employee termination costs.

All restructuring costs and other charges in connection with above-referenced restructuring plans were incurred and recorded in the Company's Fabricated Products segment.

The following table summarizes the activity relating to cash obligations arising from the Company's restructuring plans:

	Employee Termination and Other Personnel Costs
Restructuring obligations at December 31, 2008	$	4.5
Cash restructuring costs and other charges incurred in 2009	3.3
Cash payments in 2009	(5.5		)
Restructuring obligations at December 31, 2009	2.3
Cash restructuring costs and other benefits incurred in 2010	(1.0		)
Cash payments in 2010	(0.9		)
Restructuring obligations at December 31, 2010	0.4
Cash restructuring costs and other benefits incurred in 2011	(0.2		)
Cash payments in 2011	(0.2		)
Restructuring obligations at December 31, 2011	$	—

In addition to the restructuring activities above, the Company sold its manufacturing facility located in Greenwood, South Carolina for cash consideration of $4.8 in July 2010. The Greenwood, South Carolina facility produced forged aluminum products, which no longer fit within the Company's strategic portfolio of product offerings. In connection with the sale, the Company recorded a $1.9 impairment charge to reduce the carrying value of the assets classified as held-for-sale to their estimated fair value, less costs to sell. Such impairment loss was included in Other operating charges (benefit) in the Statements of Consolidated Income and was included as part of the Fabricated Products segment results.

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Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2011

Other Comprehensive Income [Abstract]

Other Comprehensive (Loss) Income

The following table presents the tax effect allocated to each component of other comprehensive (loss) income for each period presented:

	Before-Tax			Income Tax			Net-of-Tax
	Amount			(Expense) Benefit			Amount
2011
Defined benefit pension plan and VEBAs:
Net actuarial loss arising during the period	$	(110.6	)	$	42.2		$	(68.4	)
Reclassification adjustments:
Less: amortization of net actuarial gain	0.6			(0.2		)	0.4
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Total loss recognized in Accumulated other comprehensive loss related to defined benefit pension plan and VEBAs	(105.8		)	40.4			(65.4		)
Unrealized loss on available for sale securities	(0.1		)	—			(0.1		)
Foreign currency translation adjustment	0.2			—			0.2
Other comprehensive loss	$	(105.7	)	$	40.4		$	(65.3	)
2010
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	25.5		$	(9.7	)	$	15.8
Reclassification adjustments:
Less: amortization of net actuarial gain	0.7			(0.2		)	0.5
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Total income recognized in Accumulated other comprehensive income related to defined benefit pension plans	30.4			(11.5		)	18.9
Unrealized gain on available for sale securities	0.1			—			0.1
Foreign currency translation adjustment	(0.5		)	—			(0.5		)
Other comprehensive income	$	30.0		$	(11.5	)	$	18.5
2009
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	66.3		$	(25.0	)	$	41.3
Prior service cost arising during the period	(33.8		)	12.7			(21.1		)
Reclassification adjustments
Less: amortization of net actuarial loss	3.8			(1.4		)	2.4
Less: amortization of prior service cost	1.6			(0.6		)	1.0
Total income recognized in Accumulated other comprehensive income related to defined benefit pension plans	37.9			(14.3		)	23.6
Foreign currency translation adjustment	(1.5		)	—			(1.5		)
Other comprehensive income	$	36.4		$	(14.3	)	$	22.1

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Commitments and Contingencies Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies Disclosure [Abstract]

Environmental accrual rollforward table

The following table presents the changes in such accruals, which are primarily included in Long-term liabilities.

	Year Ended December 31,
	2011			2010			2009
Beginning balance	$	20.2		$	9.7		$	9.6
Additional accruals	3.9			13.9			2.4
Less expenditures	(2.1		)	(3.4		)	(2.3		)
Ending balance	$	22.0		$	20.2		$	9.7

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Employee Benefits, Defined Benefit Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended																										3 Months Ended	12 Months Ended										12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Additional Capital	Dec. 31, 2010 Additional Capital	Dec. 31, 2009 Additional Capital	Dec. 31, 2011 Common Stock Owned by Union VEBA Subject to Transfer Restriction		Dec. 31, 2010 Common Stock Owned by Union VEBA Subject to Transfer Restriction		Dec. 31, 2011 Canadian pension plan		Dec. 31, 2010 Canadian pension plan		Dec. 31, 2009 Canadian pension plan		Dec. 31, 2011 Canadian pension plan London, Ontario Facility	Dec. 31, 2011 VEBAs		Dec. 31, 2010 VEBAs		Dec. 31, 2009 VEBAs		Dec. 31, 2011 VEBAs Amortization of Prior Service Cost	Dec. 31, 2011 VEBAs Amortization of Net Actuarial Loss	Dec. 31, 2011 VEBAs Maximum	Mar. 31, 2011 VEBAs Additional Amount	Dec. 31, 2011 VEBAs Annual Cash Flows up to $20 Million	Dec. 31, 2011 VEBAs Annual Cash Flows in Excess of $20 Million	Dec. 31, 2011 Union VEBA trustrees		Dec. 31, 2010 Union VEBA		Dec. 31, 2009 Union VEBA		Dec. 31, 2011 Union VEBA Company Appointed trustrees	Dec. 31, 2011 Union VEBA USW Appointed trustrees	Dec. 31, 2011 Salaried VEBA		Dec. 31, 2010 Salaried VEBA		Dec. 31, 2009 Salaried VEBA
Defined Benefit Plan, Actual Plan Asset Allocations
Portion of plan assets invested in equity securities											55.00%
Portion of plan assets invested in debt securities											40.00%
Defined Benefit Plan, Assets, Target Allocations
Asset mix target allocation in equity																	55.00%
Asset mix target allocation in debt																	43.00%
Postretirement Medical Obligations
Number of trustees																														4						2	2
Common stock, shares outstanding	19,253,185	19,214,451																												2,202,495		3,523,980
Postretirement medical plan common stock ownership percentage																														11.00%
Unrestricted Union VEBA shares allowed to be sold in any twelve-month period																														1,321,485
Stock transfer restriction annual period																														12 months
Common stock sold by Union VEBA	1,321,485	1,321,485
Increase in Union VEBA assets																														$ 65.5	[1]	$ 52.1	[1]
Reduction in Common stock owned by Union VEBA	(40.5)	(32.5)		(8.8)	(0.7)		(31.7)	[2]	(31.8)	[2]
Increase in Additional paid in capital	(40.5)	(32.5)		(8.8)	(0.7)		(31.7)	[2]	(31.8)	[2]
Decrease in Deferred tax assets				(25.0)	(19.6)	0
Weighted average price per share sold by Union VEBA	$ 49.58	$ 39.39
Reorganization value per share	$ 24.02	$ 24.02
Administrative expense obligation																										0.3
Postretirement medical plan contribution obligation percentage																												10.00%	20.00%
Cash flow in determining VEBA obligation																		20.0
Accrued annual VEBA contribution	0	2.1																														1.8								0.3
Postretirement medical plan contribution obligation paid																											0.1
Liquidity requirement																		50.0
Administrative expenses of the VEBAs																		0.3														0.3		0.3
Assumptions used to determine benefit obligations
Discount rate											5.60%		5.70%																	4.20%		5.25%						3.75%		4.70%
Rate of compensation increase											3.00%		3.50%
Initial medical trend rate																														8.50%	[3]	9.00%	[3]
Ultimate medical trend rate																														5.00%	[3],[4]	5.00%	[4]	5.00%	[4]
Year that rate reaches ultimate trend rate	2019	2019																												2019		2019		2013
Effect of one-percentage-point increase in medical trend rate on accumulated postretirement benefit obligation																														50.5		37.0
Effect of one-percentage-point decrease in medical trend rate on accumulated postretirement benefit obligation																														40.8		30.4
Assumptions used to determine net periodic benefit cost (income)
Discount rate											5.70%		6.70%		7.50%															5.25%		5.80%		6.00%				4.70%		5.40%		6.00%
Expected long term return on plan assets											5.40%	[5]	5.40%	[5]	6.00%	[5]														6.00%	[5]	4.75%	[5]	5.75%	[5]			7.25%	[5]	7.25%	[5]	7.25%	[5]
Rate of compensation increase											3.50%		3.50%		3.30%
Initial medical trend rate used in calculating net periodic benefit cost																														9.00%	[4]	9.50%	[4]	9.00%	[4]
Ultimate medical trend rate																														5.00%	[3],[4]	5.00%	[4]	5.00%	[4]
Year that rate reaches ultimate trend rate	2019	2019																												2019		2019		2013
Effect of one-percentage-point increase on service and interest cost components																														2.7		2.7		2.4
Effect of one-percentage-point decrease on service and interest cost components																														2.1		2.2		1.9
Change in Benefit Obligation:
Obligation at beginning of year											(5.4)		(4.1)					(348.6)		(344.8)										(289.0)								(59.6)
Foreign currency translation adjustment											(0.1)		0.2					0		0
Service cost											0.2		0.1		0.1			2.2		2.0		2.2
Interest cost											0.3		0.3		0.2			17.4		19.1		18.7
Actuarial loss (gain)											(0.2)	[6]	0.8	[6]				96.8	[6]	2.8	[6]
Plan participant contributions											0		0.1					0		0
Benefits paid by Company											(0.2)		(0.2)					(21.1)		(23.2)
Benefits paid by VEBA											(0.2)		(0.2)					(21.1)		(23.2)
Reimbursement from Retiree Drug Subsidy																														3.0	[7]	3.1	[7]
Obligation at end of year											(5.4)		(5.4)		(4.1)			(446.9)		(348.6)		(344.8)								(370.0)		(289.0)						(76.9)		(59.6)
Change in Plan Assets:
FMV of plan assets at beginning of year											4.9		4.1					506.6		422.4										445.7								60.9
Foreign currency translation adjustment											(0.1)		0.2					0		0
Actual return on assets											(0.2)		0.3					16.9		49.9
Plan participant contributions											0		0.1					0		0
Employer/Company contributions											0.5		0.4					0.1		2.3						20.0
Benefits paid by Company											(0.2)		(0.2)					(21.1)		(23.2)
Benefits paid by VEBA											(0.2)		(0.2)					(21.1)		(23.2)
Reimbursement from Retiree Drug Subsidy																														3.0	[7]	3.1	[7]
FMV of plan assets at end of year											4.9		4.9		4.1			571.0		506.6		422.4								514.7		445.7						56.3		60.9
Benefit Obligations and Funded Status Additional Disclosure
Actuarial loss resulting from an increase in benefit cost for plan participants																		31.4
Actuarial loss resulting from a decrease in discount rates used to determine benefit obligations																		53.5
Actuarial loss resulting from change in actuarial assumptions																		11.9
Prescription drug benefit retiree drug subsidy percentage																														28.00%
Net asset In respect of VEBAs	144.7	158.0
Net liability in respect of VEBA	20.6	0
Net Funded Status
APBO											(5.4)		(5.4)		(4.1)			(446.9)		(348.6)		(344.8)								(370.0)		(289.0)						(76.9)		(59.6)
Plan assets											4.9		4.9		4.1			571.0		506.6		422.4								514.7		445.7						56.3		60.9
Net Funded Status											(0.5)		(0.5)					124.1	[8]	158.0	[8]									144.7		156.7						(20.6)		1.3
Projected benefit obligation											4.9		4.8
Net benefits expected to be paid in 2012											0.5
Anticipated Retiree Drug Subsidy
Anticipated Retiree Drug Subsidy, 2012																														(3.1)
Anticipated Retiree Drug Subsidy, 2013																														(3.3)
Anticipated Retiree Drug Subsidy, 2014																														(3.5)
Anticipated Retiree Drug Subsidy, 2015																														(3.6)
Anticipated Retiree Drug Subsidy, 2016																														(3.7)
Anticipated Retiree Drug Subsidy, 2017-2021																														(19.7)
Expected future benefit payments, 2012	25.8										0.2							28.7	[9]
Expected future benefit payments, 2013	26.3										0.3							29.3	[9]
Expected future benefit payments, 2014	26.4										0.3							29.6	[9]
Expected future benefit payments, 2015	26.6										0.3							29.9	[9]
Expected future benefit payments, 2016	26.7										0.3							30.1	[9]
Expected future benefit payments, 2017-2021	159.4										1.8							177.3	[9]
Accumulated other comprehensive (loss) income
Accumulated net actuarial (losses) gains											(2.0)		(1.8)					(95.1)		14.7
Transition assets											0.4		0.4
Prior service cost																		(41.1)		(45.3)
(Loss) income recognized in Accumulated other comprehensive (loss) income											(1.6)		(1.4)					(136.2)		(30.6)
Amounts in Accumulated other comprehensive (loss) income expected to be recognized in 2012
Amounts in Accumulated other comprehensive (loss) income expected to be recognized in 2012											0.1							7.2						4.2	3.0
Components of Net Periodic Benefit Costs (Income)
Service cost											0.2		0.1		0.1			2.2		2.0		2.2
Interest cost											0.3		0.3		0.2			17.4		19.1		18.7
Expected return on plan assets											(0.3)		(0.2)		(0.2)			(30.4)		(20.9)		(21.0)
Amortization of prior service cost											0	[10]	0	[10]	0	[10]		4.2	[10]	4.2	[10]	1.6	[10]
Amortization of net gain (loss)											0.1		0		0			0.6		0.7		3.8
Net periodic benefit costs (income)	$ (5.7)	$ 5.1	$ 5.3								$ 0.3		$ 0.2		$ 0.1			$ (6.0)		$ 5.1		$ 5.3

[1] At a weighted-average price of $49.58 and $39.39 per share realized by the Union VEBA for the years 2011 and 2010, respectively.

[2] At $24.02 per share reorganization value.

[3] The medical trend rate assumptions used for the Union VEBA were provided by the Union VEBA and certain industry data were provided by the Company's actuaries. The trend rate is assumed to decline to 5% by 2019 at December 31, 2011 and December 31, 2010. A one-percentage-point increase in the assumed medical trend rates would increase the accumulated postretirement benefit obligation of the Union VEBA by $50.5 and $37.0 at December 31, 2011 and December 31, 2010, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the accumulated postretirement benefit obligation of the Union VEBA by $40.8 and $30.4 at December 31, 2011 and December 31, 2010, respectively.

[4] The medical trend rate assumptions were used for the Union VEBA, which is currently paying certain prescription drug benefits, and provided by the Union VEBA and industry data from the Company's actuaries. The trend rate is assumed to decline to 5% by 2019, 5% by 2019 and 5% by 2013 for 2011, 2010 and 2009, respectively. A one-percentage-point increase in the assumed medical trend rates would increase the aggregate of the service and interest cost components of net periodic benefit costs by $2.7, $2.7 and $2.4 for 2011, 2010 and 2009, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the aggregate of the service and interest cost components of net periodic benefit costs by $2.1, $2.2, and $1.9 for 2011, 2010 and 2009, respectively.

[5] The expected long-term rate of return assumption is based on the historical investment portfolios provided to the Company by the VEBAs’ trustees.

[6] The actuarial loss relating to the VEBA plans in 2011 is comprised of (i) a loss of $31.4 resulting from an increase in benefit cost for plan participants, (ii) a loss of $53.5 resulting from a decrease in discount rates used to determine benefit obligations for both VEBA plans and (iii) a loss of $11.9 resulting from change in actuarial assumptions. The actuarial loss relating to the VEBA plans in 2010 is primarily the result of a change in the assumption in participant marital status in the Union VEBA and a change in annual benefit payment per participant in the Salaried VEBA.

[7] In January 2005, the Department of Health and Human Services’ Centers for Medicare and Medicaid Services (CMS) released final regulations governing the Medicare prescription drug benefit and other key elements of the Medicare Modernization Act that went into effect January 1, 2006. The Union VEBA is eligible for the Retiree Drug Subsidy because the plan meets the definition of actuarial equivalence and therefore qualifies for federal subsidies equal to 28% of allowable drug costs. As a result, the Company has measured the Union VEBA’s obligations and costs to take into account this subsidy.

[8] With respect to the Prepaid benefit of $124.1 relating to the VEBAs at December 31, 2011, of which $144.7 was included in Net asset in respect of VEBA and $20.6 was included in Net liability in respect of VEBA on the Consolidated Balance Sheet. Prepaid benefit of $158.0 relating to the VEBAs at December 31, 2010, was included in Net asset in respect of the VEBAs on the Consolidated Balance Sheets.

[9] Such amounts were obtained from the VEBAs. The Company's only financial obligations to the VEBAs are to pay the variable contributions which may not exceed $20.0 annually and certain administrative fees.

[10] The Company amortizes prior service cost on a straight-line basis over the average remaining years of service to full eligibility for benefits of the active plan participants.

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Restatement of Previously Issued Financial Statements (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Consolidated Balance Sheets:
Net asset in respect of VEBA(s)	$ 144.7				$ 158.0				$ 144.7		$ 158.0
Deferred tax assets - net	226.9				245.3				226.9		245.3
Total assets	1,320.6				1,318.9				1,320.6		1,318.9
Retained earnings	84.4				78.0				84.4		78.0
Accumulated other comprehensive income (loss)	(85.0)				(19.7)				(85.0)		(19.7)
Total stockholders' equity	872.8				888.7				872.8		888.7	870.3	788.1
Total liabilities and equity	1,320.6				1,318.9				1,320.6		1,318.9
Statements of Consolidated Income:
Selling, administrative, research and development, and general									62.7		67.7	69.9
Total costs and expenses									1,246.3		1,038.0	868.3
Operating income	15.6	4.9	14.7	19.8	11.6	12.3	3.2	14.0	55.0		41.1	118.7
Income before income taxes									41.3		25.1	118.6
Income tax provision									(16.2)		(13.1)	(48.1)
Net income	6.1	4.1	4.1	10.8	(0.9)	5.0	(0.4)	8.3	25.1	[1]	12.0	70.5
Earnings per common share, Basic:
Net income per share	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61	$ 3.51
Earnings per common share, Diluted:
Net income per share	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61	$ 3.51
Statements of Consolidated Comprehensive (Loss) Income
Net income	6.1	4.1	4.1	10.8	(0.9)	5.0	(0.4)	8.3	25.1	[1]	12.0	70.5
Defined benefit pension plan and VEBAs
Net actuarial gain (loss) arising during the period									(110.6)		25.5	66.3
Tax impact on net actuarial gain (loss)									42.2		(9.7)	(25.0)
Prior service cost arising during the period									0		0	(33.8)
Tax impact on prior service cost												12.7
Reclassification adjustments:
Less: amortization of net actuarial gain (loss)									0.6		0.7	3.8
Less: tax impact on amortization of net actuarial gain (loss)									(0.2)		(0.2)	(1.4)
Less: amortization of prior service cost									4.2		4.2	1.6
Less: tax impact on amortization of prior service cost									(1.6)		(1.6)	(0.6)
Comprehensive (loss) income									(40.2)		30.5	92.6
Statements of Consolidated Stockholders' Equity:
Net income	6.1	4.1	4.1	10.8	(0.9)	5.0	(0.4)	8.3	25.1	[1]	12.0	70.5
Retained earnings	84.4				78.0				84.4		78.0
Accumulated other comprehensive income (loss)	(85.0)				(19.7)				(85.0)		(19.7)
Total stockholders' equity	872.8				888.7				872.8		888.7	870.3	788.1
Statements of Consolidated Cash Flows
Net income	6.1	4.1	4.1	10.8	(0.9)	5.0	(0.4)	8.3	25.1	[1]	12.0	70.5
Deferred income taxes									17.6		13.3	47.3
Non-cash net periodic benefit (income) costs									(5.7)		5.1	5.3
Other non-cash changes in assets and liabilities									0.4		(0.7)	0.2
Previously Reported
Consolidated Balance Sheets:
Net asset in respect of VEBA(s)					195.7						195.7
Deferred tax assets - net					231.1						231.1
Total assets					1,342.4						1,342.4
Retained earnings					80.1						80.1
Accumulated other comprehensive income (loss)					1.7						1.7	(7.3)
Total stockholders' equity					912.2						912.2	901.2
Total liabilities and equity					1,342.4						1,342.4
Statements of Consolidated Income:
Selling, administrative, research and development, and general											64.4
Total costs and expenses											1,034.7
Operating income											44.4
Income before income taxes											28.4
Income tax provision											(14.3)
Net income											14.1
Earnings per common share, Basic:
Net income per share											$ 0.72
Earnings per common share, Diluted:
Net income per share											$ 0.72
Statements of Consolidated Comprehensive (Loss) Income
Net income											14.1
Defined benefit pension plan and VEBAs
Net actuarial gain (loss) arising during the period											11.4	114.6
Tax impact on net actuarial gain (loss)											(4.4)	(43.2)
Prior service cost arising during the period												(32.4)
Tax impact on prior service cost												12.2
Reclassification adjustments:
Less: amortization of net actuarial gain (loss)											(0.4)
Less: tax impact on amortization of net actuarial gain (loss)											0.2
Less: amortization of prior service cost											4.2
Less: tax impact on amortization of prior service cost											(1.6)
Comprehensive (loss) income											23.1	123.5
Statements of Consolidated Stockholders' Equity:
Net income											14.1
Retained earnings					80.1						80.1
Accumulated other comprehensive income (loss)					1.7						1.7	(7.3)
Total stockholders' equity					912.2						912.2	901.2
Statements of Consolidated Cash Flows
Net income											14.1
Deferred income taxes											14.5
Non-cash net periodic benefit (income) costs											0
Other non-cash changes in assets and liabilities											1.0
Adjustment
Consolidated Balance Sheets:
Net asset in respect of VEBA(s)					(37.7)						(37.7)
Deferred tax assets - net					14.2						14.2
Total assets					(23.5)						(23.5)
Retained earnings					(2.1)						(2.1)
Accumulated other comprehensive income (loss)					(21.4)						(21.4)	(30.9)
Total stockholders' equity					(23.5)						(23.5)	(30.9)
Total liabilities and equity					(23.5)						(23.5)
Statements of Consolidated Income:
Selling, administrative, research and development, and general											3.3
Total costs and expenses											3.3
Operating income		(0.7)	(0.7)	(0.7)	(0.8)	(0.8)	(0.8)	(0.8)			(3.3)
Income before income taxes											(3.3)
Income tax provision											1.2
Net income		(0.4)	(0.4)	(0.4)	(0.5)	(0.5)	(0.5)	(0.5)			(2.1)
Earnings per common share, Basic:
Net income per share		$ (0.02)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.03)			$ (0.11)
Earnings per common share, Diluted:
Net income per share		$ (0.02)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.03)			$ (0.11)
Statements of Consolidated Comprehensive (Loss) Income
Net income		(0.4)	(0.4)	(0.4)	(0.5)	(0.5)	(0.5)	(0.5)			(2.1)
Defined benefit pension plan and VEBAs
Net actuarial gain (loss) arising during the period											14.1	(48.3)
Tax impact on net actuarial gain (loss)											(5.3)	18.2
Prior service cost arising during the period												(1.4)
Tax impact on prior service cost												0.5
Reclassification adjustments:
Less: amortization of net actuarial gain (loss)											1.1
Less: tax impact on amortization of net actuarial gain (loss)											(0.4)
Less: amortization of prior service cost											0
Less: tax impact on amortization of prior service cost											0
Comprehensive (loss) income											7.4	(30.9)
Statements of Consolidated Stockholders' Equity:
Net income		(0.4)	(0.4)	(0.4)	(0.5)	(0.5)	(0.5)	(0.5)			(2.1)
Retained earnings					(2.1)						(2.1)
Accumulated other comprehensive income (loss)					(21.4)						(21.4)	(30.9)
Total stockholders' equity					(23.5)						(23.5)	(30.9)
Statements of Consolidated Cash Flows
Net income		(0.4)	(0.4)	(0.4)	(0.5)	(0.5)	(0.5)	(0.5)			(2.1)
Deferred income taxes											(1.2)
Non-cash net periodic benefit (income) costs											5.1
Other non-cash changes in assets and liabilities											(1.7)
Accumulated Other Comprehensive Income (Loss)
Consolidated Balance Sheets:
Accumulated other comprehensive income (loss)												(38.2)
Total stockholders' equity	(85.0)								(85.0)				(60.3)
Statements of Consolidated Stockholders' Equity:
Accumulated other comprehensive income (loss)												(38.2)
Total stockholders' equity	$ (85.0)								$ (85.0)				$ (60.3)

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill. A roll-forward of goodwill is as follows (see Note 5 for additional information about the Company's business acquisitions):

Balance as of December 31, 2009	$	—
Goodwill arising from Nichols acquisition	3.1
Balance as of December 31, 2010	$	3.1
Goodwill arising from Alexco acquisition	34.1
Balance as of December 31, 2011	$	37.2

Identifiable intangible assets

December 31, 2011:

	Weighted average Estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	25	$	38.5	$	(1.7	)	$	36.8
Backlog	2	0.8		(0.7		)	0.1
Trademark and trade name	3	0.4		(0.1		)	0.3
Total	24	$	39.7	$	(2.5	)	$	37.2

December 31, 2010:

	Weighted average Estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	20	$	3.8	$	(0.1	)	$	3.7
Backlog	3	0.5		(0.2		)	0.3
Total	18	$	4.3	$	(0.3	)	$	4.0

Expected amortization of intangible assets for the next five years

The expected amortization of intangible assets for the next five calendar years is as follows:

2012	$	1.8
2013	1.7
2014	1.6
2015	1.6
2016	1.6
Thereafter	28.9
Total	$	37.2

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Quarterly Financial Data Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Quarterly Financial Data [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	Quarter Ended 31-Mar		Quarter Ended 30-Jun		Quarter Ended 30-Sep			Quarter Ended 31-Dec
2011
Net sales	$	322.6	$	338.8	$	322.3		$	317.6
Cost of products sold, excluding depreciation, amortization and other items	280.9		300.0		297.7			280.3
Restructuring costs and other (benefits) charges	—		—		(0.3		)	—
Gross Profit	41.7		38.8		24.9			37.3
Operating income	19.8		14.7		4.9			15.6
Net income	$	10.8	$	4.1	$	4.1		$	6.1
Earnings per common share, Basic:
Net income per share	$	0.57	$	0.22	$	0.21		$	0.33
Earnings per common share, Diluted:
Net income per share	$	0.57	$	0.22	$	0.21		$	0.33
Common stock market price:
High	$	52.77	$	54.62	$	56.30		$	49.46
Low	$	45.88	$	46.37	$	43.71		$	40.26

	Quarter Ended 31-Mar			Quarter Ended 30-Jun			Quarter Ended 30-Sep			Quarter Ended 31-Dec
2010
Net sales	$	267.5		$	282.4		$	263.4		$	265.8
Cost of products sold, excluding depreciation, amortization and other items	232.0			255.9			229.3			229.6
Restructuring costs and other (benefits) charges	(0.6		)	0.1			(0.4		)	0.6
Gross Profit	36.1			26.4			34.5			35.6
Operating income	14.0			3.2			12.3			11.6
Net income (loss)	$	8.3		$	(0.4	)	$	5.0		$	(0.9	)
Earnings per common share, Basic:
Net income (loss) per share	$	0.41		$	(0.02	)	$	0.26		$	(0.05	)
Earnings per common share, Diluted:
Net income (loss) per share	$	0.41		$	(0.02	)	$	0.26		$	(0.05	)
Common stock market price:
High	$	44.40		$	41.63		$	43.23		$	52.00
Low	$	32.83		$	32.91		$	33.90		$	42.07

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Goodwill and Intangible Assets, Identifiable Intangible Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 years	Dec. 31, 2010 years	Dec. 31, 2011 Customer Relationships [Member] years	Dec. 31, 2010 Customer Relationships [Member] years	Dec. 31, 2011 Backlog [Member] years	Dec. 31, 2010 Backlog [Member] years	Dec. 31, 2011 Trademark and trade name [Member] years	Jan. 03, 2011 Alexco
Identifiable intangible assets
Weighted average estimated useful life	24	18	25	20	2	3	3
Original cost	$ 39.7	$ 4.3	$ 38.5	$ 3.8	$ 0.8	$ 0.5	$ 0.4
Accumulated amortization	(2.5)	(0.3)	(1.7)	(0.1)	(0.7)	(0.2)	(0.1)
Net book value	37.2	4.0	36.8	3.7	0.1	0.3	0.3
Acquired Finite-lived Intangible Asset, Amount								$ 35.4

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Secured Debt and Credit Facilities, Other Notes Payable (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended							9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Aug. 09, 2010 Nichols	Dec. 31, 2011 Nichols Promissory Note	Aug. 09, 2010 Nichols Promissory Note	Aug. 09, 2010 Nichols Promissory Note Nichols	Sep. 30, 2011 Los Angeles Promissory Note
Notes payables
Nichols promissory note issued				$ 6.7			$ 6.7
Interest rate						7.50%
Outstanding principal balance under the Nichols Promissory Note	4.7	13.1			4.7
Nichols promissory note, current					1.3
Repayments of LA note payable	$ 8.3	$ 0.7	$ 0					$ 7.0

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Restructuring and Other Exit Activities Restructuring and Other Exit Activities (Tables)

12 Months Ended

Dec. 31, 2011

Restructuring and Other Exit Activities [Abstract]

Schedule of Restructuring and Related Costs [Table Text Block]

The following table summarizes the activity relating to cash obligations arising from the Company's restructuring plans:

	Employee Termination and Other Personnel Costs
Restructuring obligations at December 31, 2008	$	4.5
Cash restructuring costs and other charges incurred in 2009	3.3
Cash payments in 2009	(5.5		)
Restructuring obligations at December 31, 2009	2.3
Cash restructuring costs and other benefits incurred in 2010	(1.0		)
Cash payments in 2010	(0.9		)
Restructuring obligations at December 31, 2010	0.4
Cash restructuring costs and other benefits incurred in 2011	(0.2		)
Cash payments in 2011	(0.2		)
Restructuring obligations at December 31, 2011	$	—

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Statement of Consolidated Cash Flows (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Cash flows from investing activities:
Cash received in the acquisition	$ 4.9

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Acquisitions, Alexco Purchase Price Allocation Table (Details) (USD $) In Millions, unless otherwise specified	Jan. 03, 2011 Alexco	Jan. 03, 2011 Alexco Customer Relationships [Member]	Jan. 03, 2011 Alexco Backlog [Member]	Jan. 03, 2011 Alexco Trademark and trade name [Member]	Aug. 09, 2010 Nichols
Allocation of purchase price:
Cash	$ 4.9
Account receivable, net	3.6
Inventory	6.6				3.9
Property, plant and equipment	4.5				4.2
Definite-lived intangible assets:		34.7	0.3	0.4	4.3
Goodwill	34.1				3.1
Accounts payable and other current liabilities	(1.0)				(2.1)
Total consideration paid	$ 88.1

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Derivative Financial Instruments and Related Hedging Programs (Tables)

12 Months Ended

Dec. 31, 2011

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of material derivative positions

The following table summarizes the Company's material derivative positions at December 31, 2011:

		Notional Amount of Contracts
Commodity	Maturity Period	(mmlbs)
Aluminum —
Fixed priced purchase contracts	1/12 through 11/13	103.5
Midwest premium swap contracts1	1/12 through 12/12	86.0

		Notional Amount of Contracts
Energy	Maturity Period	(mmbtu)
Natural gas —2
Call option purchase contracts	1/12 through 12/13	4,050,000
Put option sales contracts	1/12 through 12/13	4,050,000
Fixed priced purchase contracts	1/12 through 12/14	1,490,000

		Notional Amount of Contracts
Electricity	Maturity Period	(Mwh)
Fixed priced purchase contracts	1/12 through 12/12	219,600

		Notional Amount of Contracts
Hedges Relating to the Notes	Contract Period	(Common Shares)
Bifurcated Conversion Feature3	3/10 through 3/15	3,621,608
Call Options3	3/10 through 3/15	3,621,608

_________________________

¹  Regional premiums represent the premium over the London Metal Exchange price for primary aluminum which is incurred on the Company's purchases of primary aluminum.

²  As of December 31, 2011, the Company's exposure to fluctuations in natural gas prices had been substantially reduced for approximately 85%, 53% and 5% of the expected natural gas purchases for 2012, 2013 and 2014, respectively.

³  The Bifurcated Conversion Feature represents the cash conversion feature of the Notes. To hedge against the potential cash outflows associated with the Bifurcated Conversion Feature, the Company purchased cash-settled Call Options. The Call Options have an exercise price equal to the conversion price of the Notes, subject to anti-dilution adjustment provisions substantially similar to the Notes, which may cause the exercise price to decrease and the notional amount of shares relating thereto to increase. The Call Options will expire upon the maturity of the Notes. Although the fair value of the Call Options is derived from a notional number of shares of the Company's common stock, the Call Options may only be settled in cash.

Summary of realized and unrealized gains (losses)

Realized and unrealized gains (losses) associated with all derivative contracts consisted of the following, for each period presented:

	Year Ended December 31,
	2011			2010			2009
Realized gains (losses):
Aluminum	$	9.6		$	(0.6	)	$	(29.2	)
Natural Gas	(5.2		)	(1.3		)	(10.0		)
Foreign Currency	—			—			(13.4		)
Total realized gains (losses):	$	4.4		$	(1.9	)	$	(52.6	)
Unrealized (losses) gains:
Aluminum	$	(26.5	)	$	3.6		$	61.2
Natural Gas	(1.6		)	(4.4		)	3.7
Electricity	(1.8		)	—			—
Foreign Currency	—			0.1			15.6
Call Options	(2.1		)	17.0			—
Bifurcated Cash Conversion Feature	6.1			(21.9		)	—
Total unrealized (losses) gains	$	(25.9	)	$	(5.6	)	$	80.5

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Restatement of Previously Issued Financial Statements

12 Months Ended

Dec. 31, 2011

Accounting Changes and Error Corrections [Abstract]

Restatement of Previously Issued Financial Statements

Restatement of Previously Issued Consolidated Financial Statements

The Company accounts for the postretirement medical benefits to be paid by the VEBAs as defined benefit postretirement plans with the current VEBA assets and future variable contributions and earnings thereon operating as a cap on the benefits to be paid. Subsequent to the issuance of the consolidated financial statements for the year ended December 31, 2010, the Company identified errors in the accuracy and completeness of the data previously provided by the Union VEBA. The Company determined that it had omitted certain deferred retirees from the Union VEBA's participant population and misinterpreted the benefit election of certain participants for the years ended December 31, 2009 and December 31, 2010. As a result of this omission and misinterpretation, the Company has restated the consolidated financial statements for the years ended December 31, 2009 and December 31, 2010 and each of the interim periods in 2010 and 2011 to reflect the full effects of these errors, which management believes are not material to its previously issued consolidated financial statements.

The following is a summary of the effects of the restatement on the Company's Statements of Consolidated Income, Statements of Comprehensive (Loss) Income, Statements of Consolidated Stockholders' Equity and Statements of Cash Flows for the years ended December 31, 2010 and 2009 and Consolidated Balance Sheet as of December 31, 2010 (in millions of dollars, except per share amounts):

	December 31, 2010
	Previously Reported			Adjustment			Restated
Consolidated Balance Sheets:
Net asset in respect of VEBA(s)	$	195.7		$	(37.7	)	$	158.0
Deferred tax assets — net	231.1			14.2			245.3
Total assets	1,342.4			(23.5		)	1,318.9
Retained earnings	80.1			(2.1		)	78.0
Accumulated other comprehensive income (loss)	1.7			(21.4		)	(19.7		)
Total stockholders’ equity	912.2			(23.5		)	888.7
Total liabilities and equity	1,342.4			(23.5		)	1,318.9
	Year ended December 31, 2010
	Previously Reported			Adjustment			Restated
Statements of Consolidated Income:
Selling, administrative, research and development, and general	$	64.4		$	3.3		$	67.7
Total costs and expenses	1,034.7			3.3			1,038.0
Operating income	44.4			(3.3		)	41.1
Income before income taxes	28.4			(3.3		)	25.1
Income tax provision	(14.3		)	1.2			(13.1		)
Net income	14.1			(2.1		)	12.0
Earnings per common share, Basic:
Net income per share	$	0.72		$	(0.11	)	$	0.61
Earnings per common share, Diluted:
Net income per share	$	0.72		$	(0.11	)	$	0.61
Statements of Consolidated Comprehensive (Loss) Income:1
Net income	$	14.1		$	(2.1	)	$	12.0
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial gain arising during the period	11.4			14.1			25.5
Tax impact on net actuarial gain	(4.4		)	(5.3		)	(9.7		)
Reclassification adjustments:
Less: amortization of net actuarial loss	(0.4		)	1.1			0.7
Less: tax impact on amortization of net actuarial loss	0.2			(0.4		)	(0.2		)
Less: amortization of prior service cost	4.2			—			4.2
Less: tax impact on amortization of prior service cost	(1.6		)	—			(1.6		)

Comprehensive income	23.1			7.4			30.5
Statements of Consolidated Stockholders' Equity:1
Net income	$	14.1		$	(2.1	)	$	12.0
Retained earnings	80.1			(2.1		)	78.0
Accumulated other comprehensive income (loss)	1.7			(21.4		)	(19.7		)
Total stockholders' equity	912.2			(23.5		)	888.7
Statements of Consolidated Cash Flows:
Net income	$	14.1		$	(2.1	)	$	12.0
Deferred income taxes	14.5			(1.2		)	13.3
Non-cash net periodic benefit cost2	—			5.1			5.1
Other non-cash changes in assets and liabilities2	1.0			(1.7		)	(0.7		)
	Year ended December 31, 2009
	Previously Reported			Adjustment			Restated
Statements of Consolidated Comprehensive (Loss) Income:1
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial gain arising during the period	$	114.6		$	(48.3	)	$	66.3
Tax impact on net actuarial gain	(43.2		)	18.2			(25.0		)
Prior service cost arising during the period	(32.4		)	(1.4		)	(33.8		)
Tax impact on prior service cost	12.2			0.5			12.7
Comprehensive income	123.5			(30.9		)	92.6
Statements of Consolidated Stockholders' Equity:1
Accumulated other comprehensive loss	$	(7.3	)	$	(30.9	)	$	(38.2	)
Total stockholders' equity	901.2			(30.9		)	870.3

_______________________________

¹   Total comprehensive (loss) income and components of other comprehensive (loss) income were previously included in the Statement of Stockholders' Equity. In 2011, the Company presented the Statement of Comprehensive (Loss) Income as a separate statement in accordance with ASU 2011-05. As such, the Previously Reported amounts in the tables above reflect the changes in the presentation.

²  Non-cash net periodic benefit cost was included within Other non-cash changes in assets and liabilities in 2010. Such amount has been reclassified from Other non-cash changes in assets and liabilities to conform to current period presentation.

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Other Comprehensive Income

12 Months Ended

Dec. 31, 2011

Other Comprehensive Income [Abstract]

Other Comprehensive (Loss) Income Disclosure

Other Comprehensive (Loss) Income

The following table presents the tax effect allocated to each component of other comprehensive (loss) income for each period presented:

	Before-Tax			Income Tax			Net-of-Tax
	Amount			(Expense) Benefit			Amount
2011
Defined benefit pension plan and VEBAs:
Net actuarial loss arising during the period	$	(110.6	)	$	42.2		$	(68.4	)
Reclassification adjustments:
Less: amortization of net actuarial gain	0.6			(0.2		)	0.4
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Total loss recognized in Accumulated other comprehensive loss related to defined benefit pension plan and VEBAs	(105.8		)	40.4			(65.4		)
Unrealized loss on available for sale securities	(0.1		)	—			(0.1		)
Foreign currency translation adjustment	0.2			—			0.2
Other comprehensive loss	$	(105.7	)	$	40.4		$	(65.3	)
2010
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	25.5		$	(9.7	)	$	15.8
Reclassification adjustments:
Less: amortization of net actuarial gain	0.7			(0.2		)	0.5
Less: amortization of prior service cost	4.2			(1.6		)	2.6
Total income recognized in Accumulated other comprehensive income related to defined benefit pension plans	30.4			(11.5		)	18.9
Unrealized gain on available for sale securities	0.1			—			0.1
Foreign currency translation adjustment	(0.5		)	—			(0.5		)
Other comprehensive income	$	30.0		$	(11.5	)	$	18.5
2009
Defined benefit pension plan and VEBAs:
Net actuarial gain arising during the period	$	66.3		$	(25.0	)	$	41.3
Prior service cost arising during the period	(33.8		)	12.7			(21.1		)
Reclassification adjustments
Less: amortization of net actuarial loss	3.8			(1.4		)	2.4
Less: amortization of prior service cost	1.6			(0.6		)	1.0
Total income recognized in Accumulated other comprehensive income related to defined benefit pension plans	37.9			(14.3		)	23.6
Foreign currency translation adjustment	(1.5		)	—			(1.5		)
Other comprehensive income	$	36.4		$	(14.3	)	$	22.1

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Supplemental Balance Sheet Information (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Trade Receivables
Billed trade receivables	$ 98.9	$ 82.5
Unbilled trade receivables - Note 1	0.9	1.1
Trade receivables, gross	99.8	83.6
Allowance for doubtful receivables	(0.9)	(0.6)
Trade receivables, net	98.9	83.0
Inventories
Finished products	75.9	53.8
Work in process	57.5	49.6
Raw materials	58.1	50.9
Operating supplies and repairs and maintenance parts	14.2	13.2
Total	205.7	167.5
Prepaid Expense and Other Current Assets
Current derivative assets - Notes 12 and 13	0	22.1
Current deferred tax assets	63.0	46.8
Current portion of option premiums paid - Notes 12 and 13	0.4	5.6
Short-term restricted cash	7.8	0.9
Prepaid taxes	3.8	1.3
Prepaid expenses	3.9	3.4
Total	78.9	80.1
Property, Plant and Equipment
Land and land improvements	22.6	23.3
Buildings and leasehold improvements	45.9	43.5
Machinery and equipment	356.7	338.0
Construction in progress	24.1	7.7
Active property, plant and equipment, gross	449.3	412.5
Accumulated depreciation	(86.9)	(63.9)
Active property, plant and equipment, net	362.4	348.6
Idled equipment	5.4	5.5
Property, plant, and equipment, net	367.8	354.1
Other Assets
Derivative assets - Notes 12 and 13	46.2	50.8
Option premiums paid - Notes 12 and 13	0.1	0.6
Restricted cash	10.4	16.3
Long-term income tax receivable	2.8	2.9
Deferred financing costs	7.8	7.7
Available for sale securities	4.9	4.6
Other	0.1	0.1
Total	72.3	83.0
Other Accrued Liabilities
Current derivative liabilities - Notes 12 and 13	14.8	8.9
Current portion of option premiums received - Notes 12 and 13	0.1	7.0
Current portion of income tax liabilities	0	1.1
Accrued income taxes and taxes payable	2.6	1.8
Accrued annual VEBA contribution	0	2.1
Accrued freight	2.4	1.9
Short-term environmental accrual - Note 11	1.2	1.1
Accrued interest	2.3	2.1
Short-term deferred revenue - Note 1	13.5	10.8
Other	4.1	5.2
Total	41.0	42.0
Other Liabilities, Noncurrent [Abstract]
Derivative liabilities - Notes 12 and 13	55.5	62.2
Option premiums received - Notes 12 and 13	0.1	0.3
Income tax liabilities	13.4	12.9
Workers' compensation accruals	20.8	15.9
Long-term environmental accrual - Note 11	20.8	19.1
Long-term asset retirement obligations	3.8	3.8
Long-term deferred revenue - Note 1	3.3	13.2
Deferred compensation liability	5.1	4.9
Other long-term liabilities	3.2	2.4
Total	$ 126.0	$ 134.7

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Assumptions used in determining fair value of the Call Option

The significant assumptions used in the determining the fair value of the Call Options at December 31, 2011 were as follows:

Stock price at December 31, 20111	$	45.88
Quarterly dividend yield (per share)2	$	0.24
Risk-free interest rate3	0.42		%
Credit spread (basis points)4	569
Expected volatility rate5	42		%

____________

¹  The Company's stock price has the most material impact to the fair values of the Call Options and the Notes, which drives the fair value of the Bifurcated Conversion Feature.

²  The Company used a discrete quarterly dividend payment of $0.24 per share based on historical and expected future quarterly dividend payments as of December 31, 2011.

³  The risk-free rate was based on the five-year and three-year Constant Maturity Treasury rate on December 31, 2011, compounded semi-annually.

⁴  The Company's credit rating was estimated to be between BB and B+ based on comparisons of its financial ratios and size to those of other rated companies. Using the Merrill Lynch High Yield index, the Company identified credit spreads for other debt issuances with similar credit ratings and used the median of such credit spreads.

⁵  The volatility rate was based on both observed volatility, which is based on the Company's historical stock price, and implied volatility from the Company's traded options. Such volatility was further adjusted to take into consideration market participant risk tolerance.

Summary of assets and liabilities measured and recognized at fair value on a recurring basis

The following table presents the Company's financial instruments, classified under the appropriate level of the fair value hierarchy, as of December 31, 2011:

	Level 1		Level 2			Level 3			Total
FINANCIAL ASSETS:
Derivative Instruments
Aluminum -
Fixed priced purchase contracts	$	—	$	0.3		$	—		$	0.3
Midwest premium swap contracts	—		—			0.1			0.1
Hedges Relating to the Notes -
Call Options	—		46.3			—			46.3
VEBAs and Canadian Pension Plan
Fixed income investment funds in registered investment companies1	—		413.3			—			413.3
Mortgage backed securities	—		33.9			—			33.9
Corporate debt securities2	—		39.1			—			39.1
Equity investment funds in registered investment companies3	—		52.3			—			52.3
United States Treasuries	—		1.6			—			1.6
Municipal debt securities	—		6.3			—			6.3
Cash and money market investments4	12.1		—			—			12.1
Asset backed securities	—		5.0			—			5.0
Diversified investment funds in registered investment companies5	—		12.3			—			12.3
All Other Financial Assets
Cash and cash equivalents	49.8		—			—			49.8
Available for sale securities	—		4.9			—			4.9
Total	$	61.9	$	615.3		$	0.1		$	677.3
FINANCIAL LIABILITIES:
Derivative Instruments
Aluminum -
Fixed priced purchase contracts	$	—	$	(7.8	)	$	—		$	(7.8	)
Midwest premium swap contracts	—		—			(0.1		)	(0.1		)

Natural Gas -
Put option sales contracts	—			(5.6		)	—			(5.6		)
Fixed priced purchase contracts	—			(1.3		)	—			(1.3		)
Electricity -
Fixed priced purchase contracts	—			(1.8		)	—			(1.8		)
Hedges Relating to the Notes -
Bifurcated Conversion Feature	—			(53.9		)	—			(53.9		)
All Other Financial Liabilities
Nichols Promissory Note	—			(4.7		)	—			(4.7		)
Notes	(203.0		)	—			—			(203.0		)
Total	$	(203.0	)	$	(75.1	)	$	(0.1	)	$	(278.2	)

The following table presents the Company's financial instruments classified under the appropriate level of the fair value hierarchy as of December 31, 2010:

	Level 1		Level 2		Level 3		Total
FINANCIAL ASSETS:
Derivative Instruments
Aluminum -
Call option purchase contracts	$	—	$	9.3	$	—	$	9.3
Put option purchase contracts	—		0.1		—		0.1
Fixed priced purchase contracts	—		18.2		—		18.2
Midwest premium swap contracts	—		—		0.2		0.2
Natural Gas -
Call option purchase contracts	—		0.3		—		0.3
Put option purchase contracts	—		2.5		—		2.5
Fixed priced purchase contracts	—		0.1		—		0.1
Hedges Relating to the Notes -
Call Options	—		48.4		—		48.4
VEBAs and Canadian Pension Plan
Fixed income investment funds in registered investment companies1	—		299.1		—		299.1
Mortgage backed securities	—		81.7		—		81.7
Corporate debt securities2	—		47.6		—		47.6
Equity investment funds in registered investment companies3	—		32.8		—		32.8
United States Treasuries	—		15.0		—		15.0
Municipal debt securities	—		7.1		—		7.1
Cash and money market investments4	11.2		—		—		11.2
Asset backed securities	—		10.1		—		10.1
Diversified investment funds in registered investment companies5	—		4.9		—		4.9
All Other Financial Assets

Cash and cash equivalents	135.6			—			—			135.6
Available for sale securities	—			4.6			—			4.6
Total	$	146.8		$	581.8		$	0.2		$	728.8
FINANCIAL LIABILITIES:
Derivative Instruments
Aluminum -
Call option sales contracts	$	—		$	(9.3	)	$	—		$	(9.3	)
Put option sales contracts	—			(0.1		)	—			(0.1		)
Fixed priced purchase contracts	—			(0.4		)	—			(0.4		)
Fixed priced sales contracts	—			(3.4		)	—			(3.4		)
Midwest premium swap contracts	—			—			(0.1		)	(0.1		)
Natural Gas -
Put option sales contracts	—			(4.6		)	—			(4.6		)
Fixed priced purchase contracts	—			(0.5		)	—			(0.5		)
Hedges Relating to the Notes -
Bifurcated Conversion Feature	—			(60.0		)	—			(60.0		)
All Other Financial Liabilities
Los Angeles Promissory Note	—			(7.0		)	—			(7.0		)
Nichols Promissory Note	—			(6.0		)	—			(6.0		)
Notes	(214.7		)	—			—			(214.7		)
Total	$	(214.7	)	$	(91.3	)	$	(0.1	)	$	(306.1	)

_________________________

^1.  This category represents investments in various fixed income funds with multiple registered investment companies. Such funds invest in diversified portfolios, including (a) marketable fixed income securities such as (i) U.S. Treasury and other government issued debt securities, (ii) mortgage backed securities, (iii) asset backed securities, (iv) corporate bonds, notes and debentures in various sectors, (v) preferred stock, (vi) various deposit accounts and (vii) repurchase agreements and reverse repurchase agreements, (b) higher yielding, non-investment-grade fixed income securities in the high yield market, (c) debt securities of issuers located in countries with new or emerging markets, denominated in U.S. dollars or other foreign currencies and (d) fixed income instruments which may be represented by options, future contracts or swap agreements. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^2.  This category represents investments in fixed income corporate securities in various sectors. Investments in the industrial, financial and utilities sectors in 2011 represented approximately 53%, 38% and 9% of the total portfolio in this category, respectively. Investments in the industrial, financial and utilities sectors in 2010 represented approximately 53%, 36% and 11% of the total portfolio in this category, respectively. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^3.  This category represents investments in equity funds that invest in portfolios comprised of (i) equity securities of U.S. companies with a certain market capitalization threshold, (ii) American Depositary Receipts, or ADRs, for securities of non-U.S. issuers, and (iii) securities whose principal market is outside of U.S. The fair value of assets in this category is estimated using the net asset value per share of the investments. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^4.  This category represents cash and investments in various money market funds.

^5.  The plan assets are invested in investment funds that hold a diversified portfolio of U.S and international equity securities and fixed income securities such as corporate bonds, government bonds, mortgage and asset backed securities. The fair value of assets in this category is estimated using the net asset value per share of the investments.

Reconciliation of activity for financial instruments classified as Level 3

Financial instruments classified as Level 3 in the fair value hierarchy represent derivative contracts in which management has used at least one significant unobservable input in the valuation model. The following table presents a reconciliation of activity for such derivative contracts on a net basis:

	Level 3
Balance at December 31, 2010	$	0.1
Total realized/unrealized losses included in:
Cost of goods sold excluding depreciation expense	1.4
Transactions involving Level 3 derivative contracts:
Purchases	—
Sales	—
Issuances	—
Settlements	(1.5		)
Transactions involving Level 3 derivatives - net	(1.5		)
Transfers in and (or) out of Level 3 valuation hierarchy	—
Balance at December 31, 2011	$	—
Total gains included in earnings attributable to the change in unrealized losses relating to derivative contracts held at December 31, 2011:	$	—

Summary of activities relating to the Company's CARO liabilities

The following table summarizes the activity relating to the Company's CARO liabilities:

	Year Ended December 31,
	2011			2010			2009
Beginning balance	$	3.8		$	3.5		$	3.3
Liabilities incurred during the period	—			—			—
Liabilities settled during the period	(0.1		)	—			—
Accretion expense	0.3			0.3			0.2
Adjustment to accretion expense due to revisions to estimated cash flow1	—			(1.1		)	—
Revisions to estimated cash flow	—			1.1			—
Ending balance	$	4.0		$	3.8		$	3.5

^{__________________________________________} 

¹    The adjustment increased both basic and diluted earnings per share for 2010 by approximately $0.05 per share.

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Subsequent Events

12 Months Ended

Dec. 31, 2011

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

The Company has evaluated events subsequent to December 31, 2011, to assess the need for potential recognition or disclosure in herein. Such events were evaluated through the date these financial statements were issued. Based upon this evaluation, it was determined that no subsequent events occurred that require recognition in the consolidated financial statements and that the following items represent subsequent events that merit disclosure herein:

Dividend Declaration. On January 13, 2012, the Company announced that its Board of Directors approved the declaration of a quarterly cash dividend of $0.25 per common share, or $4.9 (including dividend equivalents), which was paid on February 15, 2012 to stockholders of record at the close of business on January 24, 2012.

Quarterly cash dividend exceeding $0.24 per share has certain impacts on the conversion rate on our Notes, the exercise price of the Call Options and Warrants. See Note 3 for additional detail.

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Quarterly Financial Data

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data [Abstract]

Quarterly Financial Information [Text Block]

KAISER ALUMINUM CORPORATION AND SUBSIDIARY COMPANIES

QUARTERLY FINANCIAL DATA (Unaudited)

(in millions of dollars, except share and per share amounts and as otherwise indicated)

The following tables present the unaudited financial data for each of the interim periods in 2011 and 2010. Subsequent to the issuance of the unaudited consolidated financial statements for the quarter ended September 30, 2011, the Company identified errors in the accuracy and completeness of the data previously provided by the Union VEBA. The Company determined that it had omitted certain deferred retirees from the Union VEBA's participant population and misinterpreted the benefit election of certain participants for the years ended December 31, 2009 and December 31, 2010. As a result of these errors, the previously presented unaudited consolidated quarterly financial statements for the interim periods in 2011 each contained a $0.7 overstatement of Operating income, a $0.4 overstatement of Net income and a $0.02 overstatement of Net income per share - basic and diluted, and the unaudited consolidated quarterly financial statements for the interim periods in 2010 each contained a $0.8 overstatement of Operating income, a $0.5 overstatement of Net income and a $0.03 overstatement of Net income per share - basic and diluted. The tables below reflect the unaudited restated amounts for each of the interim periods in 2011 and 2010 except for the quarter ended December 31, 2011. Management believes the effects of these errors are not material to any of its previously issued consolidated financial statements.

The restated financial information for each of the 2011 interim periods will also be reflected in the Company's Quarterly Report on Form 10-Q for corresponding interim periods ending in 2012, when such report is filed with the SEC.

	Quarter Ended 31-Mar		Quarter Ended 30-Jun		Quarter Ended 30-Sep			Quarter Ended 31-Dec
2011
Net sales	$	322.6	$	338.8	$	322.3		$	317.6
Cost of products sold, excluding depreciation, amortization and other items	280.9		300.0		297.7			280.3
Restructuring costs and other (benefits) charges	—		—		(0.3		)	—
Gross Profit	41.7		38.8		24.9			37.3
Operating income	19.8		14.7		4.9			15.6
Net income	$	10.8	$	4.1	$	4.1		$	6.1
Earnings per common share, Basic:
Net income per share	$	0.57	$	0.22	$	0.21		$	0.33
Earnings per common share, Diluted:
Net income per share	$	0.57	$	0.22	$	0.21		$	0.33
Common stock market price:
High	$	52.77	$	54.62	$	56.30		$	49.46
Low	$	45.88	$	46.37	$	43.71		$	40.26

	Quarter Ended 31-Mar			Quarter Ended 30-Jun			Quarter Ended 30-Sep			Quarter Ended 31-Dec
2010
Net sales	$	267.5		$	282.4		$	263.4		$	265.8
Cost of products sold, excluding depreciation, amortization and other items	232.0			255.9			229.3			229.6
Restructuring costs and other (benefits) charges	(0.6		)	0.1			(0.4		)	0.6
Gross Profit	36.1			26.4			34.5			35.6
Operating income	14.0			3.2			12.3			11.6
Net income (loss)	$	8.3		$	(0.4	)	$	5.0		$	(0.9	)
Earnings per common share, Basic:
Net income (loss) per share	$	0.41		$	(0.02	)	$	0.26		$	(0.05	)
Earnings per common share, Diluted:
Net income (loss) per share	$	0.41		$	(0.02	)	$	0.26		$	(0.05	)
Common stock market price:
High	$	44.40		$	41.63		$	43.23		$	52.00
Low	$	32.83		$	32.91		$	33.90		$	42.07

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Statement of Consolidated Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income	$ 25.1	[1]	$ 12.0	$ 70.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	23.0		19.5	16.4
Amortization of definite-lived intangible assets	2.2		0.3	0
Amortization of debt discount and debt issuance costs	8.6		4.5	0
Deferred income taxes	17.6		13.3	47.3
Excess tax (benefit) deficiency upon vesting of non-vested shares and dividend payment on unvested shares expected to vest	(0.2)		0	0.1
Non-cash equity compensation	5.4		4.7	9.1
Net non-cash LIFO (benefit) charges and lower of cost or market inventory write-down	(7.1)		16.5	18.0
Non-cash unrealized losses (gains) on derivative positions	25.9		5.5	(80.5)
Amortization of option premiums (received) paid, net	(1.2)		1.8	5.5
Non-cash impairment charges	0		4.6	2.3
Equity in income of unconsolidated affiliate, net of distributions	0		0	(1.9)
Losses on disposition of property, plant and equipment	0.2		0.1	0.1
Non-cash net periodic benefit (income) costs	(5.7)		5.1	5.3
Other non-cash changes in assets and liabilities	0.4		(0.7)	0.2
Changes in operating assets and liabilities, net of effect of acquisition:
Trade and other receivables	(8.3)		(1.2)	30.1
Receivable from affiliate	0		0.2	11.6
Inventories (excluding LIFO adjustments and lower of cost or market write-down)	(24.5)		(56.3)	29.1
Prepaid expenses and other current assets	(2.9)		(0.9)	(2.0)
Accounts payable	10.9		4.2	(2.5)
Accrued liabilities	(1.5)		0.4	(19.8)
Payable to affiliate	(2.7)		8.1	(18.5)
Long-term assets and liabilities, net	(2.4)		24.6	7.3
Net cash provided by operating activities	62.8		66.3	127.7
Cash flows from investing activities:
Capital expenditures	(32.5)		(38.9)	(59.2)
Purchase of available for sale securities	(0.3)		(4.4)	0
Proceeds from disposal of property, plant, and equipment	0.7		4.8	0
Cash payment for acquisition of manufacturing facility and related assets (net of $4.9 of cash received in connection with the acquisition in 2011)	(83.2)		(9.0)	0
Change in restricted cash	(1.0)		1.1	18.5
Net cash used in investing activities	(116.3)		(46.4)	(40.7)
Cash flows from financing activities:
Proceeds from issuance of cash convertible senior notes	0		175.0	0
Cash paid for financing costs in connection with issuance of cash convertible senior notes	0		(5.9)	0
Purchase of call option in connection with issuance of cash convertible senior notes	0		(31.4)	0
Proceeds from issuance of warrants	0		14.3	0
Repayment of capital lease	(0.1)		0	0
Repayment of promissory notes	(8.3)		(0.7)	0
Borrowings under the revolving credit facility	0		0	111.6
Repayment of borrowings under the revolving credit facility	0		0	(147.6)
Cash paid for financing costs in connection with the revolving credit facility	(2.1)		(2.7)	(1.2)
Excess tax benefit (deficiency) upon vesting of non-vested shares and dividend payment on unvested shares expected to vest	0.2		0	(0.1)
Repurchase of common stock to cover employees' tax withholdings upon vesting of non-vested shares	(3.1)		0	0
Repurchase of common stock	0		(44.2)	0
Cash dividend paid to stockholders	(18.9)		(19.0)	(19.6)
Net cash (used in) provided by financing activities	(32.3)		85.4	(56.9)
Net (decrease) increase in cash and cash equivalents during the period	(85.8)		105.3	30.1
Cash and cash equivalents at beginning of period	135.6		30.3	0.2
Cash and cash equivalents at end of period	$ 49.8		$ 135.6	$ 30.3

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2011

Accounting Policies [Abstract]

Organization and Nature of Operations

Organization and Nature of Operations. Kaiser Aluminum Corporation (together with its subsidiaries, unless the context otherwise requires, the “Company”) specializes in the production of semi-fabricated specialty aluminum products, with its operations consisting of one reportable segment in the aluminum industry, Fabricated Products. The Company also owns a 49% non-controlling interest in Anglesey Aluminium Limited (“Anglesey”), which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales. See Note 15 for additional information regarding the Company's reportable segment and its other business units.

Recent Acquisitions

Recent Acquisitions. In January 2011, the Company acquired the manufacturing facility and related assets of Alexco, L.L.C. (“Alexco”) in Chandler, Arizona (the “Chandler, Arizona (Extrusion) facility”). The Chandler, Arizona (Extrusion) facility manufactures hard alloy extrusions for the aerospace industry and is a well established supplier of aerospace extrusions. The acquisition positions the Company in a significant market segment that provides a natural complement to its product offerings for aerospace applications (see Note 5).

In August 2010, the Company acquired the manufacturing facility and related assets of Nichols Wire, Incorporated (“Nichols”) in Florence, Alabama (the “Florence, Alabama facility”). The Florence, Alabama facility manufactures bare mechanical alloy wire products, nails and aluminum rod and expands the Company's offerings of small diameter rod, bar and wire products to the Company's core end market segments for aerospace and high strength products, general engineering products and extrusions for automotive applications (see Note 5).

Principles of Consolidation and Basis of Presentation

Principles of Consolidation and Basis of Presentation. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, and are prepared in accordance with United States generally accepted accounting principles (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”). Intercompany balances and transactions are eliminated. The consolidated financial statements include the results of manufacturing facilities acquired by the Company from the effective date of each acquisition.

The Company suspended the use of the equity method of accounting with respect to its ownership in Anglesey commencing in the quarter ended September 30, 2009. As a result, the Company did not record equity in income from Anglesey for any of the periods presented herein. The carrying amount of the Company's investment in Anglesey was zero at both December 31, 2011 and December 31, 2010. The Company does not anticipate resuming the use of the equity method of accounting with respect to its investment in Anglesey during the next 12 months.

Use of Estimates in the Preparation of Financial Statements

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses during the reporting period. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of the Company’s consolidated financial statements; accordingly, it is possible that the actual results could differ from these estimates and assumptions, which could have a material effect on the reported amounts of the Company’s consolidated financial position and results of operations.

Recognition of Sales

Recognition of Sales. Sales are generally recognized on a gross basis when title, ownership and risk of loss pass to the buyer and collectability is reasonably assured. A provision for estimated sales returns from, and allowances to, customers is made in the same period as the related revenues are recognized, based on historical experience or the specific identification of an event necessitating a reserve.

From time to time, in the ordinary course of business, the Company may enter into agreements with customers in which the Company, in return for a fee, agrees to reserve certain amounts of its existing production capacity for the customer, defer an existing customer purchase commitment into future periods and reserve certain amounts of its expected production capacity in those periods for the customer, or cancel or reduce existing commitments under existing contracts. These agreements may have terms or impact periods exceeding one year.

Certain of the capacity reservation and commitment deferral agreements provide for periodic, such as quarterly or annual, billing for the duration of the contract. For capacity reservation agreements, the Company recognizes revenue ratably over the period of the capacity reservation. Accordingly, the Company may recognize revenue prior to billing reservation fees. Unbilled receivables are included within Trade receivables on the Company's Consolidated Balance Sheets (see Note 2). For commitment deferral agreements, the Company recognizes revenue upon the earlier occurrence of the related sale of product or the end of the commitment period. In connection with other agreements, the Company may collect funds from customers in advance of the periods for which (i) the production capacity is reserved, (ii) commitments are deferred, (iii) commitments are reduced or (iv) performance is completed, in which event the recognition of revenue is deferred until the fee is earned. Any unearned fees are included within Other accrued liabilities or Long-term liabilities, as appropriate, on the Company's Consolidated Balance Sheets (see Note 2).

Stock-Based Compensation

Stock-Based Compensation. Stock-based compensation in the form of service-based awards is provided to executive officers, certain employees and directors, and is accounted for at fair value. The Company measures the cost of services received in exchange for an award of equity instruments based on the grant-date fair value of the award and the number of awards expected to ultimately vest. The cost of an award is recognized as an expense over the requisite service period of the award on a straight-line basis. The Company has elected to amortize compensation expense for equity awards with graded vesting using the straight-line method (see Note 10).

The Company also grants performance-based awards to executive officers and other key employees. These awards are subject to performance requirements pertaining to the Company's economic value added (“EVA”) performance, measured over specified three-year performance periods. The EVA is a measure of the excess of the Company's adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year, as defined in the Company's annual long-term incentive (“LTI”) programs. The number of performance shares, if any, that will ultimately vest and result in the issuance of common shares depends on the average annual EVA achieved for the specified three-year performance periods. The fair value of performance-based awards is measured based on the most probable outcome of the performance condition, which is estimated quarterly using the Company's forecast and actual results. The Company expenses the fair value, after assuming an estimated forfeiture rate, over the specified three-year performance periods on a ratable basis (see Note 10).

Shipping and Handling Costs

Shipping and Handling Costs. Shipping and handling costs are recorded as a component of Cost of products sold excluding depreciation, amortization and other items.

Advertising Costs

Advertising Costs. Advertising costs, which are included in Selling, administrative, research and development, and general, are expensed as incurred. Advertising costs for 2011, 2010 and 2009 were $0.4, $0.3, and $0.4, respectively.

Research and Development Costs

Research and Development Costs. Research and development costs, which are included in Selling, research and development, and general, are expensed as incurred. Research and development costs for 2011, 2010 and 2009 were $6.1, $4.9, and $4.4, respectively.

Major Maintenance Activities

Major Maintenance Activities. All of the major maintenance costs are accounted for using the direct expensing method.

Cash and Cash Equivalents

Cash and Cash Equivalents. The Company considers only those short-term, highly liquid investments with original maturities of 90 days or less when purchased to be cash equivalents. The Company’s cash equivalents consist primarily of funds in savings accounts, demand notes, money market accounts and other highly liquid investments, which are classified within Level 1 of the fair value hierarchy.

Restricted Cash

Restricted Cash. The Company is required to keep certain amounts on deposit relating to workers’ compensation and other agreements. The Company accounts for such deposits as restricted cash (see Note 2).

Trade Receivables and Allowance for Doubtful Accounts

Trade Receivables and Allowance for Doubtful Accounts. Trade receivables primarily consist of amounts billed to customers for products sold. Accounts receivable are generally due within 30 days. For the majority of its receivables, the Company establishes an allowance for doubtful accounts based upon collection experience and other factors. On certain other receivables where the Company is aware of a specific customer’s inability or reluctance to pay, an allowance for doubtful accounts is established against amounts due, to reduce the net receivable balance to the amount the Company reasonably expects to collect. However, if circumstances change, the Company’s estimate of the recoverability of accounts receivable could be different. Circumstances that could affect the Company’s estimates include, but are not limited to, customer credit issues and general economic conditions. Accounts are written off once deemed to be uncollectible. Any subsequent cash collections relating to accounts that have been previously written off are typically recorded as a reduction to total bad debt expense in the period of payment.

Inventories

Inventories. Inventories are stated at the lower of cost or market value. Finished products, work-in-process and raw material inventories are stated on the last-in, first-out (“LIFO”) basis. The Company recorded net non-cash LIFO inventory (benefits) charges of approximately $(7.1), $16.5 and $8.7 during 2011, 2010 and 2009, respectively. These amounts are primarily a result of changes in metal prices and changes in inventory volumes. The excesses of current cost over the stated LIFO value of inventory at December 31, 2011 and December 31, 2010 were $29.4 and $36.4, respectively. Other inventories, principally operating supplies and repair and maintenance parts, are stated at average cost. Inventory costs consist of material, labor and manufacturing overhead, including depreciation. Abnormal costs, such as idle facility expenses, freight, handling costs and spoilage, are accounted for as current period charges. All of the Company's inventories at December 31, 2011 and December 31, 2010 were included in the Fabricated Products segment (see Note 2 for the components of inventories).

Property, Plant and Equipment - Net

Property, Plant, and Equipment - Net. Property, plant and equipment is recorded at cost (see Note 2). Construction in progress is included within Property, plant, and equipment - net in the Consolidated Balance Sheets. Interest related to the construction of qualifying assets is capitalized as part of the construction costs. The aggregate amount of interest capitalized is limited to the interest expense incurred in the period. The amount of interest expense capitalized as construction in progress was $1.3, $2.8 and $2.7 during 2011, 2010 and 2009, respectively.

Depreciation is computed using the straight-line method at rates based on the estimated useful lives of the various classes of assets. Capital lease assets and leasehold improvements are depreciated on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term. The principal estimated useful lives, are as follows:

	Range (in years)
Land improvements	3	-	25
Buildings and leasehold improvements	15	-	45
Machinery and equipment	1	-	24
Capital lease assets	3

Depreciation expense is not included in Cost of products sold, excluding depreciation, amortization and other items, but is included in Depreciation and amortization on the Statements of Consolidated Income. For 2011, 2010 and 2009, the Company recorded depreciation expense of $22.7, $19.4 and $16.2, respectively, relating to the Company's operating facilities in its Fabricated Products segment. An immaterial amount of depreciation expense was also recorded in the Company's Corporate and Other for all periods presented herein.

Property, Plant and Equipment, Impairment

Property, plant and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset or group of assets may not be recoverable. The Company regularly assesses whether events and circumstances with the potential to trigger impairment have occurred and relies on a number of factors, including operating results, business plans, economic projections, and anticipated future cash flow, to make such assessments. The Company uses an estimate of the future undiscounted cash flows of the related asset or asset group over the estimated remaining life of such asset(s) in measuring whether the asset(s) are recoverable. Measurement of the amount of impairment, if any, is based on the difference between the carrying value of the asset(s) and the estimated fair value of such asset(s). Fair value is determined through a series of standard valuation techniques.

During 2010, the Company recorded a $2.0 impairment charge to write down the carrying amount of idled equipment to represent its estimated fair value and a $1.9 impairment charge in connection with the sale of its Greenwood, South Carolina facility. Such asset impairment charges are included in Other operating charges (benefits), net in the Statements of Consolidated Income and are included in the Fabricated Products segment. Further, the Company also recorded additional impairment charges relating to property, plant and equipment in connection with its restructuring plans (see Note 16).

Property, plant and equipment held for future development are presented as idled assets. Such assets are evaluated for impairment on a held-and-used basis. Depreciation expense is not adjusted when assets are temporarily idled. See “Fair Values of Non-financial Assets and Liabilities” in Note 13 for additional information regarding idled assets included in property, plant and equipment.

Available for Sale Securities

Available for Sale Securities. Included in Other assets are certain marketable debt and equity securities, classified as available for sale securities (see Note 2). Such securities are invested in various investment funds and managed by a third-party trust in connection with the Company's deferred compensation program (see Note 8). Such securities are recorded at fair value (see “Available for Sale Securities” in Note 13), with net unrealized gains and losses, net of income taxes, reflected in other comprehensive earnings as a component of Stockholders' equity.

Deferred Financing Costs

Deferred Financing Costs. Costs incurred in connection with debt financing are deferred and amortized over the estimated term of the related borrowing. Such amortization is included in Interest expense and may be capitalized as part of construction in progress (see Note 2).

Goodwill and Intangible Assets

Goodwill and Intangible Assets. Goodwill is tested for impairment on an annual basis, as well as on an interim basis, as warranted, at the time of relevant events and changes in circumstances. Intangible assets with definite lives are initially recognized at fair value and subsequently amortized over the estimated useful lives to reflect the pattern in which the economic benefits of the intangible assets are consumed. In the event the pattern cannot be reliably determined, the Company uses a straight-line amortization method. Whenever events or changes in circumstances indicate that the carrying amount of the intangible assets may not be recoverable, the intangible assets are reviewed for impairment.

The Company's accounting policy was to perform its annual goodwill impairment test during the third quarter, with the most recent annual goodwill impairment test completed as of September 1, 2011. During the fourth quarter of 2011, the Company elected to change its accounting policy to begin performing the annual goodwill impairment test on December 1 in order to better align its impairment testing procedures with the completion of the Company's annual financial and strategic planning process, which includes the preparation of long-term cash flow projections. The Company believes this change in accounting principle is preferable because these long-term cash flow projections are a key component in its annual goodwill impairment test and the change allows for the use of more recent financial information. This change did not accelerate, delay, avoid or cause a goodwill impairment charge and does not result in adjustments to our consolidated financial statements when applied retrospectively. During 2011, the Company tested its goodwill for impairment as of September 1, 2011 and December 1, 2011, and concluded there was no impairment of the carrying value of goodwill. During 2010, the Company concluded there was no impairment of the carrying value of goodwill.

Conditional Asset Retirement Obligations

Conditional Asset Retirement Obligations (“CAROs”). The Company has CAROs at several of its fabricated products facilities. The vast majority of such CAROs consist of incremental costs that would be associated with the removal and disposal of asbestos (all of which is believed to be fully contained and encapsulated within walls, floors, roofs, ceilings or piping) at certain of the Company’s older facilities if such facilities were to undergo major renovation or be demolished. The Company, in accordance with Accounting Standards Codification ("ASC") Topic 410, Asset Retirement and Environmental Obligations, estimates incremental costs for special handling, removal and disposal costs of materials that may or will give rise to CAROs and then discounts the expected costs back to the current year using a credit-adjusted, risk-free rate. The Company recognizes liabilities and costs for CAROs even if it is unclear when or if CAROs will be triggered. When it is unclear when or if CAROs will be triggered, the Company uses probability weighting for possible timing scenarios to determine the probability-weighted amounts that should be recognized in the Company’s consolidated financial statements (see Note 13).

Self Insurance of Employee Health and Workers' Compensation Liabilities

Self Insurance of Employee Health and Workers' Compensation Liabilities. The Company is primarily self-insured for group health insurance and workers' compensation benefits provided to employees. The Company purchases stop-loss insurance to protect against annual health insurance claims per individual and at an aggregate level. Self insurance liabilities are estimated for claims incurred-but-not-paid based on judgment, using the Company's historical claim data and information and analysis provided by actuarial and claim advisors, the Company's insurance carriers and other professionals. The Company accounts for accrued liability relating to workers' compensation claims on a discounted basis. The discount rates used in estimating the liabilities were 1.00% and 4.75% and the undiscounted workers' compensation liabilities were $24.3 and $20.6 at December 31, 2011 and December 31, 2010, respectively. The accrued liabilities for health insurance and workers' compensation is included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2).

Environmental Contingencies

Environmental Contingencies. With respect to environmental loss contingencies, the Company records a loss contingency whenever a contingency is probable and reasonably estimatable. Accruals for estimated losses from environmental remediation obligations are generally recognized at no later than the completion of the remedial feasibility study. Such accruals are adjusted as information develops or circumstances change. Costs of future expenditures for environmental remediation obligations are not discounted to their present value. Accruals for expected environmental costs are included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2). Environmental expense relating to continuing operations is included in Cost of products sold, excluding depreciation, amortization and other items in the Statements of Consolidated Income. Environmental expense relating to non-operating locations is included in Selling, administrative, research and development, and general in the Statements of Consolidated Income.

Derivative Financial Instruments

Derivative Financial Instruments. Hedging transactions using derivative financial instruments are primarily designed to mitigate the Company's exposure to changes in prices for certain products sold and consumed by the Company and, to a lesser extent, to mitigate the Company's exposure to changes in foreign currency exchange rates. From time to time, the Company also enters into hedging arrangements in connection with financing transactions to mitigate financial risks.

The Company does not utilize derivative financial instruments for trading or other speculative purposes. The Company's derivative activities are initiated within guidelines established by management and approved by the Company's Board of Directors. Hedging transactions are executed centrally on behalf of all of the Company's business units to minimize transaction costs, monitor consolidated net exposures and allow for increased responsiveness to changes in market factors.

The Company recognizes all derivative instruments as assets or liabilities in its Consolidated Balance Sheets and measures these instruments at fair value by “marking-to-market” all of its hedging positions at each period's end (see Note 13). Because the Company does not meet the documentation requirements for hedge (deferral) accounting, unrealized and realized gains and losses associated with hedges of operational risks are reflected as a reduction or increase, respectively, in Cost of products sold, excluding depreciation, amortization and other items, and unrealized and realized gains and losses relating to hedges of financing transactions are reflected as a component of Other income (expense) (see Note 18). See Note 12 for additional information about realized and unrealized gains and losses relating to the Company's derivative financial instruments.

Fair Value Measurement

Fair Value Measurement. The Company applies the provisions of Accounting Standards Update (“ASU”) Topic 820, Fair Value Measurements and Disclosures (“ASC 820”), in measuring the fair value of its derivative contracts, plan assets invested by certain of the Company’s employee benefit plans and its cash convertible senior notes (see Note 13).

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 establishes a fair value hierarchy that distinguishes between (i) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (ii) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Level 1 — Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

• Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3 — Inputs that are both significant to the fair value measurement and unobservable.

Income Taxes

Income Taxes. Deferred income taxes reflect the future tax effect of temporary differences between the carrying amount of assets and liabilities for financial and income tax reporting and are measured by applying statutory tax rates in effect for the year during which the differences are expected to reverse. In accordance with ASC Topic 740, Income Taxes, the Company uses a “more likely than not” threshold for recognition of tax attributes that are subject to uncertainties and measures any reserves in respect of such expected benefits based on their probability. Deferred tax assets are reduced by a valuation allowance to the extent it is more likely than not that the deferred tax assets will not be realized (see Note 7).

Earnings Per Share

Earnings per Share. ASC Topic 260, Earnings Per Share (“ASC 260”), defines unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) as participating securities and requires inclusion of such securities in the computation of earnings per share pursuant to the two-class method. ASC 260 mandates the application of the foregoing principles to all financial statements issued for fiscal years beginning after December 2008 and requires retrospective application.

Basic earnings per share is computed by dividing distributed and undistributed earnings allocable to common shares by the weighted-average number of common shares outstanding during the applicable period. The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The shares owned by a voluntary employee’s beneficiary association (“VEBA”) for the benefit of certain union retirees, their surviving spouses and eligible dependents (the “Union VEBA”) that are subject to transfer restrictions, while treated in the Consolidated Balance Sheets as being similar to treasury stock (i.e., as a reduction in Stockholders’ equity), are included in the computation of basic weighted-average number of common shares outstanding because such shares were irrevocably issued and have full dividend and voting rights. Diluted earnings per share is calculated as the more dilutive result of computing earnings per share under: (i) the treasury stock method or (ii) the two-class method (see Note 14).

Concentration of Credit Risk

Concentration of Credit Risk. Financial arrangements which potentially subject the Company to concentrations of credit risk consist of metal, currency, electricity and natural gas derivative contracts, certain cash-settled call options that the Company purchased in March 2010 (the “Call Options”) (see Note 3), and arrangements related to the Company's cash equivalents. If the market value of the Company's net commodity and currency derivative positions with certain counterparties exceeds the applicable threshold, if any, the counterparty is required to post margin by transferring cash collateral in excess of the threshold to the Company. Conversely, if the market value of these net derivative positions falls below a specified threshold, the Company is required to post margin by transferring cash collateral below the threshold to certain counterparties. At both December 31, 2011 and December 31, 2010, the Company had no margin deposits with or from its counterparties.

The Company is exposed to credit loss in the event of nonperformance by counterparties on derivative contracts used in hedging activities as well as failure of counterparties to return cash collateral previously transferred to the counterparties. The counterparties to the Company's derivative contracts are major financial institutions, and the Company does not expect nonperformance by any of its counterparties.

The Company places its cash in bank deposits and money market funds with high credit quality financial institutions which invest primarily in commercial paper and time deposits of prime quality, short-term repurchase agreements, and U.S. government agency notes. The Company has not experienced losses on its temporary cash investments.

Leases

Leases. For leases that contain predetermined fixed escalations of the minimum rent, the Company recognizes the related rent expense on a straight-line basis from the date it takes possession of the property to the end of the initial lease term. The Company records any difference between the straight-line rent amounts and the amount payable under the lease as part of deferred rent, in Other accrued liabilities or Long-term liabilities, as appropriate. Deferred rent for all periods presented was not material.

Foreign Currency

Foreign Currency. One of the Company’s foreign subsidiaries uses the local currency as its functional currency; its assets and liabilities are translated at exchange rates in effect at the balance sheet date; and its statement of operations is translated at weighted-average monthly rates of exchange prevailing during the year. Resulting translation adjustments are recorded directly to a separate component of stockholders’ equity in accordance with ASC Topic 830, Foreign Currency Matters. Where the U.S. dollar is the functional currency of a foreign facility or subsidiary, re-measurement adjustments are recorded in Other income (expense). At both December 31, 2011 and December 31, 2010, the amount of translation adjustment relating to the foreign subsidiary using local currency as its functional currency was immaterial.

New Accounting Pronouncements

New Accounting Pronouncements. In December 2010, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2010-28, Intangibles - Goodwill and Other, When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts (“ASU 2010-28”). ASU 2010-28 amends Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts. For those reporting units, an entity is required to perform Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists. In determining whether it is more likely than not that a goodwill impairment exists, an entity should consider whether there are any events or circumstances that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The adoption of ASU 2010-28 in the quarter ending March 31, 2011 did not have an impact on the Company's consolidated financial statements.

ASU No. 2010-29, Business Combinations, Disclosure of Supplementary Pro Forma Information for Business Combinations (“ASU 2010-29”), was issued in December 2010 to provide clarification regarding pro forma revenue and earnings disclosure requirements for business combinations. ASU 2010-29 specifies that if a public entity presents comparative financial statements, the entity should disclose only revenue and earnings of the combined entity as though the business combination(s) that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period. This ASU also expands the supplemental pro forma disclosures to include a description of the nature and amount of material, nonrecurring pro forma adjustments directly attributable to the business combination included in the reported pro forma revenue and earnings. The Company adopted ASU 2010-29 during the first interim reporting period of 2011 as it relates to pro forma disclosure of the Company's acquisition of the Chandler, Arizona (Extrusion) facility, effective January 1, 2011 (see Note 5).

ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), was issued in May 2011. This ASU represents the converged guidance of the FASB and the International Accounting Standards Board on fair value measurement. ASU 2011-04 sets forth common requirements for measuring fair value and for disclosing information about fair value measurements, including a consistent meaning of the term “fair value.” The provisions in this ASU are to be applied prospectively. For public entities, this ASU becomes effective during interim and annual periods beginning after December 15, 2011. Early adoption by public entities is not permitted. The Company expects to adopt the provisions of ASU 2011-04 for the interim period ending March 31, 2012 and does not anticipate the adoption of this ASU to have a material impact on its consolidated financial statements.

ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”), was issued in June 2011 to allow an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income in either a single continuous statement of comprehensive income or two separate but consecutive statements. Under either option, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. ASU 2011-05 eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders' equity. ASU 2011-05 does not change the items that are required to be reported in other comprehensive income or the timing to reclassify an item from other comprehensive income to net income and is required to be applied retrospectively. For public entities, this ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2011. Early adoption is permitted. The Company adopted the provisions of ASU 2011-05 for the fiscal year ending December 31, 2011 and applied the two-statement approach, presenting components of net income and total net income in the statement of income and the components and total of other comprehensive income along with a total for comprehensive income in the statement of other comprehensive income.

ASU No. 2011-08, Testing Goodwill for Impairment ("ASU 2011-08"), was issued in September 2011 to simplify the testing for goodwill impairment for both public and nonpublic entities. ASU 2011-08 permits an entity to first assess qualitative factors to determine whether it is "more likely than not" that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The more-likely-than-not threshold is defined as having a likelihood of more than 50%. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted. The Company adopted the provisions of ASU 2011-08 for the interim period ending September 30, 2011. The adoption of ASU 2011-08 did not have a material impact on the Company's consolidated financial statements.

ASU No. 2011-09, Disclosures about an Employer's Participation in a Multiemployer Plan ("ASU 2011-09"), was issued in September 2011 and requires employers to provide additional disclosures regarding their participation in multiemployer pension plans to increase the transparency of their participation and awareness of the commitments and risks involved in participating in such plans. While previous rules require primarily disclosures relating to employers' historical contributions to the plans, ASU 2011-09 requires employers to disclose, among other things, (i) the amount of employer contributions made to each significant plan and to all plans in the aggregate, (ii) whether the employer's contributions represent more than 5% of total contributions to the plan, (iii) whether any such plans are subject to a funding improvement plan, (iv) the expiration dates of collective bargaining agreements and any minimum funding arrangements, and (v) the nature and effect of any changes affecting the comparability of any period in which a statement of income is presented. ASU 2011-09 applies to nongovernmental entities that participate in multiemployer plans and is effective for annual periods for fiscal years ending after December 15, 2011. Early adoption is permitted. ASU 2011-09 is to be applied retrospectively for all prior periods presented. The Company adopted the provisions of ASU 2011-09 for the fiscal year ending December 31, 2011. See Note 9 for detailed disclosure regarding the Company's participation in various multiemployer pension plans.

ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities ("ASU 2011-11"), was issued in November 2011. This ASU require an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effect of those arrangements on its financial position. An entity is required to adopt ASU 2011-11for reporting periods beginning on or after January 1, 2013. The Company does not anticipate the adoption of ASU 2011-11 to have a material impact on its financial statements.

ASU No. 2011-12, Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05 ("ASU 2011-12"), was issued in December 2011 to defer the requirement under ASU 2011-05 to present reclassification adjustments in the Statement of Consolidated Income and does not affect the effective date of any other requirements under ASU 2011-05. The Company has adopted the new disclosure requirement in ASU 2011-05 to disclose the components and total of other comprehensive income as its own separate statement and deferred the disclosure requirement relating to reclassification adjustments as permitted under ASU 2011-12.

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Derivative Financial Instruments and Related Hedging Programs, Notional Quantity Table (Details)	Dec. 31, 2011
2012
Summary of material derivative positions
Percentage of natural gas purchases for which the Company's exposure to fluctuations in gas prices have been reduced	85.00%
2013
Summary of material derivative positions
Percentage of natural gas purchases for which the Company's exposure to fluctuations in gas prices have been reduced	53.00%
2014
Summary of material derivative positions
Percentage of natural gas purchases for which the Company's exposure to fluctuations in gas prices have been reduced	5.00%
Not Designated as Hedging Instrument | Aluminum | Fixed priced purchase contracts
Summary of material derivative positions
Notional Amount of Contracts	103.5
Not Designated as Hedging Instrument | Aluminum | Midwest premium swap contracts
Summary of material derivative positions
Notional Amount of Contracts	86.0	[1]
Not Designated as Hedging Instrument | Natural Gas | Call option purchase contracts
Summary of material derivative positions
Notional Amount of Contracts	4,050,000	[2]
Not Designated as Hedging Instrument | Natural Gas | Put option sales contracts
Summary of material derivative positions
Notional Amount of Contracts	4,050,000	[2]
Not Designated as Hedging Instrument | Natural Gas | Fixed priced purchase contracts
Summary of material derivative positions
Notional Amount of Contracts	1,490,000	[2]
Not Designated as Hedging Instrument | Electricity | Fixed priced purchase contracts
Summary of material derivative positions
Notional Amount of Contracts	219,600
Not Designated as Hedging Instrument | Hedges Relating to the Notes | Bifurcated Conversion Feature
Summary of material derivative positions
Notional Amount of Contracts	3,621,608	[3]
Not Designated as Hedging Instrument | Hedges Relating to the Notes | Call Options
Summary of material derivative positions
Notional Amount of Contracts	3,621,608	[3]

[1] Regional premiums represent the premium over the London Metal Exchange price for primary aluminum which is incurred on the Company's purchases of primary aluminum.

[2] As of December 31, 2011, the Company's exposure to fluctuations in natural gas prices had been substantially reduced for approximately 85%, 53% and 5% of the expected natural gas purchases for 2012, 2013 and 2014, respectively.

[3] The Bifurcated Conversion Feature represents the cash conversion feature of the Notes. To hedge against the potential cash outflows associated with the Bifurcated Conversion Feature, the Company purchased cash-settled Call Options. The Call Options have an exercise price equal to the conversion price of the Notes, subject to anti-dilution adjustment provisions substantially similar to the Notes, which may cause the exercise price to decrease and the notional amount of shares relating thereto to increase. The Call Options will expire upon the maturity of the Notes. Although the fair value of the Call Options is derived from a notional number of shares of the Company's common stock, the Call Options may only be settled in cash.

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Multiemployer Pension Plans (Tables)

12 Months Ended

Dec. 31, 2011

Multiemployer Pension Plans [Abstract]

Multiemployer Pension Plan Description and Contributions

The Company's participation in material multiemployer pension plans for the annual period ended December 31, 2011, is outlined in the table below.

Pension Fund	EIN/Pension Plan Number1	Pension Protection Act Zone Status2		FIP/RP Status Pending/Implemented in 20113	Contributions of the Company						Surcharge Imposed in 2011	Expiration Date of Collective-Bargaining Agreement
		2010	2009		2011		2010		2009
Steelworkers Pension Trust (USW)4	23-6648508	Green	Green	No	$	2.6	$	2.4	$	2.3	No	Mar 2014 - Sep 2015
National Pension Plan(IAM)5	51-6031295	Green	Green	No	0.3		0.3		0.4		No	Dec 2013 - Nov 2014
Western Conference of Teamsters Pension Plan (Teamsters)6	91-6145047	Green	Green	No	0.3		0.2		0.3		No	May 2012
Canada Wide Industrial Pension Plan7	920120	N/A	N/A	N/A	0.4		0.4		0.3		N/A	Feb 2012
					$	3.6	$	3.3	$	3.3

________________

¹  The “EIN/Pension Plan Number” column provides the Employee Identification Number (EIN) and the three-digit plan number, if applicable.

²  Unless otherwise noted, the most recent Pension Protection Act (PPA) zone status available in 2011 and 2010 is for the plan's year-end at December 31, 2010, and December 31, 2009, respectively. The zone status is based on information that the Company received from the plan and is certified by the plan's actuary. Among other factors, plans in the red zone are generally less than 65% funded, plans in the yellow zone are less than 80% funded, and plans in the green zone are at least 80% funded.

³  The “FIP/RP Status Pending/Implemented” column indicates plans for which a Financial Improvement Plan (FIP) or a Rehabilitation Plan (RP) is either pending or has been implemented under the PPA.

⁴  The Company is party to three collective-bargaining agreements that require contributions to the Steelworkers Pension Trust. Current union contracts covering employees at the Newark, Ohio and Spokane, Washington facilities, Florence, Alabama facility and Richmond (Bellwood), Virginia facility expire in September 2015, March 2014 and November 2014, respectively. Of the three, the union contract covering employees at the Newark, Ohio and Spokane, Washington facilities is more significant because 80% of the Company's USW-represented employees are covered by that agreement. The union contracts covering employees at the Bellwood, Virginia facility and Florence, Alabama facility cover 14% and 6% of the Company's USW-related employees, respectively. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the Steelworkers Pension Trust except that (i) the monthly contributions per hour worked by each bargaining unit employee at the Company’s Newark, Ohio and Spokane, Washington facilities increased to (in whole dollars) $1.25 starting July 2010 and will increase to (in whole dollars) $1.50 in July 2015 and (ii) monthly contributions per hour worked by each bargaining unit employee at at the Florence, Alabama facility are (in whole dollars) $1.25 per hour. The Company is also party to two other collective-bargaining agreements covering employees at the Chandler, Arizona (Tube) and Kalamazoo, Michigan facilities. However, these agreements do not require contributions from the Company to the Steelworkers Pension Trust because the employees at these facilities are covered under the Company's defined contribution 401(k) savings plan.

⁵  The Company is party to two significant collective-bargaining agreements that require contributions to the National Pension Plan. Current union contracts covering employees at the Richmond (Bellwood), Virginia, and Sherman, Texas facilities expire in November 2014 and December 2013, respectively. Of the two, the union contract covering employees at the Sherman, Texas facility is more significant because 89% of the Company's IAM-represented employees are covered by that agreement. The union contract covering employees at the Richmond (Bellwood), Virginia facility covers 11% of the Company's IAM-represented employees. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the National Pension Plan.

⁶  The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee at the Los Angeles, California facility to the Western Conference of Teamsters Pension Plan.

⁷  The Company makes monthly contributions of (in whole dollars) $1.15 per hour worked by each bargaining unit employee at the London, Ontario facility to the Canada Wide Industrial Pension Plan. Information relating to the Pension Protection Act zone status, FIP/RIP status and surcharge imposed are not applicable to this plan because it is a Canadian plan that does not follow the same regulations as plans that are U.S. based.

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Summary of Significant Accounting Policies Summary of Significant Accounting Policies, Textuals, Equity Method Investee (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Noncontrolling Interest
Expected period of not resuming the use of equity method of accounting	12 months
Anglesey Aluminum Limited
Noncontrolling Interest
Ownership Percentage of Anglesey	49.00%
Income (Loss) from Equity Method Investments	$ 0	$ 0	$ 0
Carrying amount of equity method investments	$ 0	$ 0

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Income Tax Matters, NOL (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 875.1
NOL carryforwards related to the excess tax benefits from vesting of employee restricted stock	1.7
AMT credit carryforwards	29.8
(Decrease) Increase in valuation allowance	(1.3)	2.1	(11.5)
US tax liability on undistributed earnings of the Canadian subsidiary	0
Income tax provision on undistributed foreign earnings	0
State of Illinois
Operating Loss Carryforwards [Line Items]
(Decrease) Increase in valuation allowance	$ (0.8)

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Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 49.8	$ 135.6
Receivables:
Trade, less allowance for doubtul receivables of $0.9 at December 31, 2011 and $0.6 at December 31, 2010, respectively	98.9	83.0
Other	1.2	5.2
Inventories	205.7	167.5
Prepaid expenses and other current assets	78.9	80.1
Total current assets	434.5	471.4
Property, plant, and equipment - net	367.8	354.1
Net asset in respect of VEBA(s)	144.7	158.0
Deferred tax assets - net	226.9	245.3
Intangible assets - net	37.2	4.0
Goodwill	37.2	3.1
Other assets	72.3	83.0
Total	1,320.6	1,318.9
Current liabilities:
Accounts payable	62.2	50.8
Accrued salaries, wages, and related expenses	30.9	31.1
Other accrued liabilities	41.0	42.0
Payable to affiliate	14.4	17.1
Long-term debt-current portion	1.3	1.3
Total current liabilities	149.8	142.3
Net liability in respect of VEBA	20.6	0
Long-term liabilities	126.0	134.7
Cash convertible senior notes	148.0	141.4
Other long-term debt	3.4	11.8
Total liabilities	447.8	430.2
Commitments and contingencies - Note 11
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized at both December 31, 2011 and December 31, 2010; no shares were issued and outstanding at December 31, 2011 and December 31, 2010	0	0
Common stock, par value $0.01, 90,000,000 shares authorized at both December 31, 2011 and at December 31, 2010; 19,253,185 shares issued and outstanding at December 31, 2011 and 19,214,451 shares issued and outstanding at December 31, 2010	0.2	0.2
Additional capital	998.4	987.1
Retained earnings	84.4	78.0
Common stock owned by Union VEBA subject to transfer restrictions, at reorganization value, 2,202,495 shares at December 31, 2011 and 3,523,980 shares at December 31, 2010	(52.9)	(84.6)
Treasury stock, at cost, 1,724,606 shares at December 31, 2011 and December 31, 2010	(72.3)	(72.3)
Accumulated other comprehensive loss	(85.0)	(19.7)
Total stockholders' equity	872.8	888.7
Total	$ 1,320.6	$ 1,318.9

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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Calculation of basic and diluted earnings per share

Basic and diluted earnings per share for 2011, 2010 and 2009 were calculated as follows:

	Year Ended December 31,
	2011		2010			2009
Numerator:
Net income	$	25.1	$	12.0		$	70.5
Less: Net income attributable to participating securities	—		(0.1		)	(1.6		)
Net income available to common stockholders	$	25.1	$	11.9		$	68.9
Denominator - Weighted-average common shares outstanding (000):1
Basic	18,979		19,377			19,639
Diluted	18,979		19,377			19,639
Earnings per common share, Basic:
Net income per share	$	1.32	$	0.61		$	3.51
Earnings per common share, Diluted:
Net income per share	$	1.32	$	0.61		$	3.51

_____________

¹  The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The diluted weighted-average number of common shares outstanding during the period is calculated under the two-class method, which does not take into account the dilutive effect of the unvested share-based payment awards.

Detail of net income attributable to participating securities

The following table provides a detail of net income attributable to participating securities for 2011, 2010 and 2009:

	Year Ended			Year Ended			Year Ended
	December 31, 2011			December 31, 2010			December 31, 2009
Net income attributable to participating securities:1
Distributed income	$	—		$	0.1		$	0.4
Undistributed income	—			—			1.2
Total net income attributable to participating securities	$	—		$	0.1		$	1.6
Percentage of undistributed net income apportioned to participating securities	—		%	—		%	2		%

__________________________

¹  Net income attributable to participating securities for a given period includes both distributed and undistributed net income, as applicable. Distributed net income attributed to participating securities represents dividend and dividend equivalents declared on the participating securities that the Company expects to ultimately vest. Undistributed net income for a given period, if any, is apportioned to participating securities based on the weighted-average number of each class of securities outstanding during the applicable period as a percentage of the combined weighted-average number of these securities outstanding during the period. Undistributed losses are not allocated to participating securities, however, as holders of such securities do not have an obligation to fund net losses of the Company.

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Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined benefit pension plan and VEBAs, before tax
Net actuarial (loss) gain arising during the period, before tax	$ (110.6)	$ 25.5	$ 66.3
Prior service cost arising during the period, before tax	0	0	(33.8)
Reclassification adjustments:
Less: amortization of net actuarial gain (loss), before tax	0.6	0.7	3.8
Less: amortization of prior service cost, before tax	4.2	4.2	1.6
Total (loss) income recognized in Accumulated other comprehensive (loss) income related to defined benefit pension plan and VEBAs, before tax	(105.8)	30.4	37.9
Unrealized (loss) gain on available for sale securities, before tax	(0.1)	0.1	0
Foreign currency translation adjustment, before tax	0.2	(0.5)	(1.5)
Other comprehensive (loss) income, before tax	(105.7)	30.0	36.4
Defined benefit pension plan and VEBAs, Income tax (expense) benefit
Net actuarial (loss) gain arising during the period, Income tax (expense) benefit	42.2	(9.7)	(25.0)
Prior service cost arising during the period, Income tax (expense) benefit			12.7
Reclassification adjustments, Income tax (expense) benefit:
Less: amortization of net actuarial gain (loss), Income tax (expense) benefit	(0.2)	(0.2)	(1.4)
Less: amortization of prior service cost, Income tax (expense) benefit	(1.6)	(1.6)	(0.6)
Total (loss) income recognized in Accumulated other comprehensive (loss) income related to defined benefit pension plans, Income tax (expense) benefit	40.4	(11.5)	(14.3)
Unrealized (loss) gain on available for sale securities, Income tax (expense) benefit	0	0
Foreign currency translation adjustment, Income tax (expense) benefit	0	0	0
Other comprehensive (loss) income, Income tax (expense) benefit	40.4	(11.5)	(14.3)
Defined benefit pension plan and VEBAs, net of tax
Net actuarial (loss) gain arising during the period, net of tax	(68.4)	15.8	41.3
Prior service cost arising during the period, net of tax			(21.1)
Reclassification Adjustments, Net of Tax:
Less: amortization of net actuarial gain (loss), net of tax	0.4	0.5	2.4
Less: amortization of prior service cost, net of tax	2.6	2.6	1.0
Total (loss) income recognized in Accumulated other comprehensive (loss) income related to defined benefit pension plans, net of tax	(65.4)	18.9	23.6
Unrealized (loss) gain on available for sale securities, net of tax	(0.1)	0.1
Foreign currency translation adjustment, net of tax	0.2	(0.5)	(1.5)
Other comprehensive (loss) income, net of tax	$ (65.3)	$ 18.5	$ 22.1

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Statement of Consolidated Stockholders' Equity (USD $) In Millions, except Share data		Total	Common Stock	Additional Capital	Retained Earnings	Common Stock Owned by Union VEBA Subject to Transfer Restriction		Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2008		$ 788.1	$ 0.2	$ 958.6	$ 34.1	$ (116.4)		$ (28.1)	$ (60.3)
Beginning balance, shares at Dec. 31, 2008			20,044,913
Net income		70.5			70.5
Other comprehensive income (loss), net of tax		22.1							22.1
Capital distribution by unconsolidated affiliate to its parent company		(0.1)		(0.1)
Issuance of non-vested shares to employees, shares			196,829
Issuance of common shares to employees in lieu of cash bonus, shares			15,674
Issuance of common shares to employees in lieu of cash bonus		0.3		0.3
Issuance of common shares to directors, shares			3,734
Issuance of common shares to directors		0.1		0.1
Issuance of common shares to employees upon vesting of restricted stock units and performance shares, shares			21,089
Cancellation of employee non-vested shares, shares			(5,668)
Cash dividends on common stock ($0.96 per share)		(19.6)			(19.6)
Tax deficiency upon vesting of non-vested shares and dividend payment on unvested shares expected to vest		(0.1)		(0.1)
Amortization of unearned equity compensation		9.0		9.0
Ending balance at Dec. 31, 2009		870.3	0.2	967.8	85.0	(116.4)		(28.1)
Ending balance, shares at Dec. 31, 2009			20,276,571
Net income		12.0			12.0
Other comprehensive income (loss), net of tax		18.5							18.5
Sale of Union VEBA shares by the Union VEBA, net of tax of $19.6 in 2010 and $25.0 in 2011		32.5		0.7		31.8	[1]
Issuance of warrants		14.3		14.3
Issuance of non-vested shares to employees, shares			97,931
Issuance of common shares to directors, shares			4,612
Issuance of common shares to directors		0.2		0.2
Issuance of common shares to employees upon vesting of restricted stock units and performance shares, shares			4,934
Cancellation of employee non-vested shares, shares			(5,968)
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares, shares			(11,729)
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares		(0.4)		(0.4)
Repurchase of common stock, shares			(1,151,900)
Repurchase of common stock		(44.2)						(44.2)
Cash dividends on common stock ($0.96 per share)		(19.0)			(19.0)
Amortization of unearned equity compensation		4.5		4.5
Ending balance at Dec. 31, 2010		888.7	0.2	987.1		(84.6)		(72.3)
Ending balance, shares at Dec. 31, 2010		19,214,451	19,214,451
Net income	[2]	25.1
Other comprehensive income (loss), net of tax		(65.3)							(65.3)
Sale of Union VEBA shares by the Union VEBA, net of tax of $19.6 in 2010 and $25.0 in 2011		40.5		8.8		31.7	[1]
Issuance of non-vested shares to employees, shares			83,066
Issuance of common shares to directors, shares			3,750
Issuance of common shares to directors		0.2		0.2
Issuance of common shares to employees upon vesting of restricted stock units and performance shares, shares			17,444
Cancellation of employee non-vested shares, shares			(2,889)
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares, shares			(62,637)
Cancellation of shares to cover employees’ tax withholdings upon vesting of non-vested shares		(3.1)		(3.1)
Cash dividends on common stock ($0.96 per share)		(18.9)			(18.9)
Excess tax benefit upon vesting of non-vested shares and dividend payment on unvested shares expected to vest		0.2		0.2
Amortization of unearned equity compensation		5.2		5.2
Reclassification relating to dividends on unvested equity awards		0.2			0.2
Ending balance at Dec. 31, 2011		$ 872.8	$ 0.2	$ 998.4	$ 84.4	$ (52.9)		$ (72.3)	$ (85.0)
Ending balance, shares at Dec. 31, 2011		19,253,185	19,253,185

[1] At $24.02 per share reorganization value.

[2] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

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Supplemental Cash Flow Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Supplemental disclosure of cash flow information:
Interest paid	$ 10.4	$ 6.0	$ 2.0
Income taxes paid	3.5	0.8	12.8
Supplemental disclosure of non-cash transactions:
Non-cash capital expenditures	1.8	1.7	5.3
Issuance of Nichols Promissory Note - Note 4	0	6.7	0
Capital leases acquired	$ 0.3	$ 0	$ 0

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Secured Debt and Credit Facilities, Current & Long Term Debt Table (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Debt Disclosure [Abstract]
Revolving credit facility	$ 0	$ 0
Other	4.7	13.1
Total	4.7	13.1
Less - current portion	(1.3)	(1.3)
Long-term secured debt	$ 3.4	$ 11.8

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Quarterly Financial Data (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Quarterly Financial Data [Line Items]
Net sales	$ 317.6	$ 322.3	$ 338.8	$ 322.6	$ 265.8	$ 263.4	$ 282.4	$ 267.5	$ 1,301.3	[1]	$ 1,079.1	$ 987.0
Cost of products sold, excluding depreciation, amortization, and other items	280.3	297.7	300.0	280.9	229.6	229.3	255.9	232.0	1,158.9		946.8	766.4
Restructuring costs and other (benefits) charges	0	(0.3)	0	0	0.6	(0.4)	0.1	(0.6)
Gross Profit	37.3	24.9	38.8	41.7	35.6	34.5	26.4	36.1
Operating income	15.6	4.9	14.7	19.8	11.6	12.3	3.2	14.0	55.0		41.1	118.7
Net income	6.1	4.1	4.1	10.8	(0.9)	5.0	(0.4)	8.3	25.1	[1]	12.0	70.5
Earnings per common share, Basic:
Net income (loss) per share	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61	$ 3.51
Earnings per common share, Diluted:
Net income (loss) per share	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61	$ 3.51
Maximum
Common stock market price:
Common stock market price, per share	$ 49.46	$ 56.30	$ 54.62	$ 52.77	$ 52.00	$ 43.23	$ 41.63	$ 44.40
Minimum
Common stock market price:
Common stock market price, per share	$ 40.26	$ 43.71	$ 46.37	$ 45.88	$ 42.07	$ 33.90	$ 32.91	$ 32.83
Adjustment
Quarterly Financial Data [Line Items]
Operating income		(0.7)	(0.7)	(0.7)	(0.8)	(0.8)	(0.8)	(0.8)			(3.3)
Net income		$ (0.4)	$ (0.4)	$ (0.4)	$ (0.5)	$ (0.5)	$ (0.5)	$ (0.5)			$ (2.1)
Earnings per common share, Basic:
Net income (loss) per share		$ (0.02)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.03)			$ (0.11)
Earnings per common share, Diluted:
Net income (loss) per share		$ (0.02)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.03)			$ (0.11)

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

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Secured Debt and Credit Facilities (Tables)

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Secured credit facility and long-term debt

	December 31, 2011			December 31, 2010
Revolving credit facility	$	—		$	—
Other	4.7			13.1
Total	4.7			13.1
Less — Current portion	(1.3		)	(1.3		)
Long-term secured debt	$	3.4		$	11.8

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Acquisitions, Textuals (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended					24 Months Ended		3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Alexco	Dec. 31, 2010 Alexco	Dec. 31, 2011 Alexco	Jan. 03, 2011 Alexco	Sep. 30, 2010 Nichols	Dec. 31, 2010 Nichols	Aug. 09, 2010 Nichols
Acquisition (Textuals) [Abstract]
Cash consideration for acquisition	$ 83.2	$ 9.0	$ 0					$ 9.0
Nichols promissory note issued										6.7
Business acquisition liabilities assumed							1.0			2.1
Total acquisition-related costs				$ 0.1	$ 0.4	$ 0.5			$ 0.8
Period for Goodwill Expected to be Deductible for Income Tax Purposes							15 years			15 years

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Fair Value Measurements

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Fair Value Measurement

Fair Value Measurements

Overview

The Company applies the fair value hierarchy established by GAAP for the recognition and measurement of assets and liabilities. An asset or liability's fair value classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, and considers counterparty risk in its assessment of fair value.

The fair values of financial assets and liabilities are measured on a recurring basis. The Company has elected not to carry any financial assets and liabilities at fair value, other than as required by GAAP. Financial assets and liabilities that the Company carries at fair value, as required by GAAP include: (i) its derivative instruments, (ii) the plan assets of the VEBAs and the Company's Canadian defined benefit pension plan, and (iii) available for sale securities, consisting of investments related to the Company's deferred compensation plan (see Note 8). The Company records certain other financial assets and liability at carrying value, see table below for the fair value disclosure of those assets and liabilities.

The majority of the Company's non-financial assets and liabilities, which include goodwill, intangible assets, inventories and property, plant, and equipment, are not required to be carried at fair value on a recurring basis. However, if certain triggering events occur (or at least annually for goodwill), an evaluation of a non-financial asset or liability is required, potentially resulting in an adjustment to the carrying amount of such asset or liability. For the years ended December 31, 2011 and December 31, 2010, the Company concluded that none of its non-financial assets and liabilities subject to fair value assessments on a non-recurring basis required a material adjustment to the carrying amount of such assets and liabilities.

Fair Values of Financial Assets and Liabilities

Fair Values of Derivative Assets and Liabilities. The Company's derivative contracts are valued at fair value using significant observable and unobservable inputs.

Commodity, Foreign Currency and Energy Hedges - The fair values of a majority of these derivative contracts are based upon trades in liquid markets. Valuation model inputs can generally be verified, and valuation techniques do not involve significant judgment. The Company has some derivative contracts, however, that do not have observable market quotes. For these financial instruments, management uses significant other observable inputs (e.g., information concerning regional premiums for swaps). Where appropriate, valuations are adjusted for various factors, such as bid/offer spreads.

Bifurcated Conversion Feature and Call Options -The fair value of the Bifurcated Conversion Feature is measured as the difference in the estimated fair value of the Notes and the estimated fair value of the Notes without the cash conversion feature. The Notes are valued based on the trading price of the Notes each period-end (see “All Other Financial Assets and Liabilities” below). The fair value of the Notes without the cash conversion feature is the present value of the series of the remaining fixed income cash flows under the Notes, with a mandatory redemption in 2015.

The Call Options are valued using a binomial lattice valuation model. Significant inputs to the model are the Company's stock price, risk-free interest rate, credit spread, dividend yield, expected volatility of the Company's stock price, and probability of certain corporate events, all of which are observable inputs by market participants.

The significant assumptions used in the determining the fair value of the Call Options at December 31, 2011 were as follows:

Stock price at December 31, 20111	$	45.88
Quarterly dividend yield (per share)2	$	0.24
Risk-free interest rate3	0.42		%
Credit spread (basis points)4	569
Expected volatility rate5	42		%

____________

¹  The Company's stock price has the most material impact to the fair values of the Call Options and the Notes, which drives the fair value of the Bifurcated Conversion Feature.

²  The Company used a discrete quarterly dividend payment of $0.24 per share based on historical and expected future quarterly dividend payments as of December 31, 2011.

³  The risk-free rate was based on the five-year and three-year Constant Maturity Treasury rate on December 31, 2011, compounded semi-annually.

⁴  The Company's credit rating was estimated to be between BB and B+ based on comparisons of its financial ratios and size to those of other rated companies. Using the Merrill Lynch High Yield index, the Company identified credit spreads for other debt issuances with similar credit ratings and used the median of such credit spreads.

⁵  The volatility rate was based on both observed volatility, which is based on the Company's historical stock price, and implied volatility from the Company's traded options. Such volatility was further adjusted to take into consideration market participant risk tolerance.

VEBA and Canadian Pension Plan Assets. The VEBA assets are managed by various investment advisors selected by the trustees of each of the VEBAs. The VEBA assets are outside of the Company's control, and the Company does not have insight into the investment strategies. The fair value of the VEBAs’ plan assets is based on information made available to the Company by the VEBA administrators.

The assets of the Company's Canadian pension plan are managed by advisors selected by the Company, with the investment portfolio subject to periodic review and evaluation by the Company's investment committee. The investment of assets in the Canadian pension plan is based upon the objective of maintaining a diversified portfolio of investments in order to minimize concentration of credit and market risks (such as interest rate, currency, equity price and liquidity risks). The degree of risk and risk tolerance take into account the obligation structure of the plan, the anticipated demand for funds and the maturity profiles required from the investment portfolio in light of these demands.

The fair value of the plan assets of the VEBAs and the Company's Canadian pension plan are reflected in the Company's Consolidated Balance Sheets at fair value. In determining the fair value of the plan assets at each annual period end, the Company utilizes primarily the results of valuations supplied by the investment advisors responsible for managing the assets of each plan.

Certain assets are valued based upon unadjusted quoted market prices in active markets that are accessible at the measurement date for identical, unrestricted assets (e.g., liquid securities listed on an exchange). Such assets are classified within Level 1 of the fair value hierarchy.

Valuation of other invested assets is based on significant observable inputs (e.g., net asset values of registered investment companies, valuations derived from actual market transactions, broker-dealer supplied valuations, or correlations between a given U.S. market and a non-U.S. security). Valuation model inputs can generally be verified and valuation techniques do not involve significant judgment. The fair values of such financial instruments are classified within Level 2 of the fair value hierarchy.

Available for sale securities. The Company holds assets in various investment funds at certain registered investment companies in connection with its deferred compensation program (see Note 1 and Note 8). Such assets are accounted for as available for sale securities and are measured and recorded at fair value based on the net asset value of the investment funds on a recurring basis at amortized cost. Such fair value input is considered a Level 2 input.

All Other Financial Assets and Liabilities. The Company believes that the fair value of its cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their respective carrying values due to their short maturities and nominal credit risk.

The Company believes that the fair value of Nichols Promissory Note materially approximates its carrying amount in light of the Company’s credit profile, the interest rate applicable to the Nichols Promissory Note, and its remaining duration. The foregoing fair value assessment is considered to be a Level 2 valuation within the fair value hierarchy.

The fair value of the Note is based on trading price of the Notes and is considered a Level 1 input in the fair value hierarchy.

The following table presents the Company's financial instruments, classified under the appropriate level of the fair value hierarchy, as of December 31, 2011:

	Level 1		Level 2			Level 3			Total
FINANCIAL ASSETS:
Derivative Instruments
Aluminum -
Fixed priced purchase contracts	$	—	$	0.3		$	—		$	0.3
Midwest premium swap contracts	—		—			0.1			0.1
Hedges Relating to the Notes -
Call Options	—		46.3			—			46.3
VEBAs and Canadian Pension Plan
Fixed income investment funds in registered investment companies1	—		413.3			—			413.3
Mortgage backed securities	—		33.9			—			33.9
Corporate debt securities2	—		39.1			—			39.1
Equity investment funds in registered investment companies3	—		52.3			—			52.3
United States Treasuries	—		1.6			—			1.6
Municipal debt securities	—		6.3			—			6.3
Cash and money market investments4	12.1		—			—			12.1
Asset backed securities	—		5.0			—			5.0
Diversified investment funds in registered investment companies5	—		12.3			—			12.3
All Other Financial Assets
Cash and cash equivalents	49.8		—			—			49.8
Available for sale securities	—		4.9			—			4.9
Total	$	61.9	$	615.3		$	0.1		$	677.3
FINANCIAL LIABILITIES:
Derivative Instruments
Aluminum -
Fixed priced purchase contracts	$	—	$	(7.8	)	$	—		$	(7.8	)
Midwest premium swap contracts	—		—			(0.1		)	(0.1		)

Natural Gas -
Put option sales contracts	—			(5.6		)	—			(5.6		)
Fixed priced purchase contracts	—			(1.3		)	—			(1.3		)
Electricity -
Fixed priced purchase contracts	—			(1.8		)	—			(1.8		)
Hedges Relating to the Notes -
Bifurcated Conversion Feature	—			(53.9		)	—			(53.9		)
All Other Financial Liabilities
Nichols Promissory Note	—			(4.7		)	—			(4.7		)
Notes	(203.0		)	—			—			(203.0		)
Total	$	(203.0	)	$	(75.1	)	$	(0.1	)	$	(278.2	)

The following table presents the Company's financial instruments classified under the appropriate level of the fair value hierarchy as of December 31, 2010:

	Level 1		Level 2		Level 3		Total
FINANCIAL ASSETS:
Derivative Instruments
Aluminum -
Call option purchase contracts	$	—	$	9.3	$	—	$	9.3
Put option purchase contracts	—		0.1		—		0.1
Fixed priced purchase contracts	—		18.2		—		18.2
Midwest premium swap contracts	—		—		0.2		0.2
Natural Gas -
Call option purchase contracts	—		0.3		—		0.3
Put option purchase contracts	—		2.5		—		2.5
Fixed priced purchase contracts	—		0.1		—		0.1
Hedges Relating to the Notes -
Call Options	—		48.4		—		48.4
VEBAs and Canadian Pension Plan
Fixed income investment funds in registered investment companies1	—		299.1		—		299.1
Mortgage backed securities	—		81.7		—		81.7
Corporate debt securities2	—		47.6		—		47.6
Equity investment funds in registered investment companies3	—		32.8		—		32.8
United States Treasuries	—		15.0		—		15.0
Municipal debt securities	—		7.1		—		7.1
Cash and money market investments4	11.2		—		—		11.2
Asset backed securities	—		10.1		—		10.1
Diversified investment funds in registered investment companies5	—		4.9		—		4.9
All Other Financial Assets

Cash and cash equivalents	135.6			—			—			135.6
Available for sale securities	—			4.6			—			4.6
Total	$	146.8		$	581.8		$	0.2		$	728.8
FINANCIAL LIABILITIES:
Derivative Instruments
Aluminum -
Call option sales contracts	$	—		$	(9.3	)	$	—		$	(9.3	)
Put option sales contracts	—			(0.1		)	—			(0.1		)
Fixed priced purchase contracts	—			(0.4		)	—			(0.4		)
Fixed priced sales contracts	—			(3.4		)	—			(3.4		)
Midwest premium swap contracts	—			—			(0.1		)	(0.1		)
Natural Gas -
Put option sales contracts	—			(4.6		)	—			(4.6		)
Fixed priced purchase contracts	—			(0.5		)	—			(0.5		)
Hedges Relating to the Notes -
Bifurcated Conversion Feature	—			(60.0		)	—			(60.0		)
All Other Financial Liabilities
Los Angeles Promissory Note	—			(7.0		)	—			(7.0		)
Nichols Promissory Note	—			(6.0		)	—			(6.0		)
Notes	(214.7		)	—			—			(214.7		)
Total	$	(214.7	)	$	(91.3	)	$	(0.1	)	$	(306.1	)

_________________________

^1.  This category represents investments in various fixed income funds with multiple registered investment companies. Such funds invest in diversified portfolios, including (a) marketable fixed income securities such as (i) U.S. Treasury and other government issued debt securities, (ii) mortgage backed securities, (iii) asset backed securities, (iv) corporate bonds, notes and debentures in various sectors, (v) preferred stock, (vi) various deposit accounts and (vii) repurchase agreements and reverse repurchase agreements, (b) higher yielding, non-investment-grade fixed income securities in the high yield market, (c) debt securities of issuers located in countries with new or emerging markets, denominated in U.S. dollars or other foreign currencies and (d) fixed income instruments which may be represented by options, future contracts or swap agreements. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^2.  This category represents investments in fixed income corporate securities in various sectors. Investments in the industrial, financial and utilities sectors in 2011 represented approximately 53%, 38% and 9% of the total portfolio in this category, respectively. Investments in the industrial, financial and utilities sectors in 2010 represented approximately 53%, 36% and 11% of the total portfolio in this category, respectively. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^3.  This category represents investments in equity funds that invest in portfolios comprised of (i) equity securities of U.S. companies with a certain market capitalization threshold, (ii) American Depositary Receipts, or ADRs, for securities of non-U.S. issuers, and (iii) securities whose principal market is outside of U.S. The fair value of assets in this category is estimated using the net asset value per share of the investments. The fair value of assets in this category is estimated using the net asset value per share of the investments.

^4.  This category represents cash and investments in various money market funds.

^5.  The plan assets are invested in investment funds that hold a diversified portfolio of U.S and international equity securities and fixed income securities such as corporate bonds, government bonds, mortgage and asset backed securities. The fair value of assets in this category is estimated using the net asset value per share of the investments.

Financial instruments classified as Level 3 in the fair value hierarchy represent derivative contracts in which management has used at least one significant unobservable input in the valuation model. The following table presents a reconciliation of activity for such derivative contracts on a net basis:

	Level 3
Balance at December 31, 2010	$	0.1
Total realized/unrealized losses included in:
Cost of goods sold excluding depreciation expense	1.4
Transactions involving Level 3 derivative contracts:
Purchases	—
Sales	—
Issuances	—
Settlements	(1.5		)
Transactions involving Level 3 derivatives - net	(1.5		)
Transfers in and (or) out of Level 3 valuation hierarchy	—
Balance at December 31, 2011	$	—
Total gains included in earnings attributable to the change in unrealized losses relating to derivative contracts held at December 31, 2011:	$	—

Fair Values of Non-financial Assets and Liabilities

Idled Assets. Included within Property, plant and equipment - net as of December 31, 2010 was $5.5 of idled assets. Of the carrying amount of idled assets as of December 31, 2010, $1.1 represented equipment used by the Company’s Tulsa, Oklahoma facility prior to the closure of that facility in 2008, and $4.4 represented assets that were acquired by the Company but had not yet been placed into service. During 2011, $0.1 of such assets was subsequently placed into service. Idled assets included within Property, plant and equipment - net was $5.4 as of December 31, 2011. The value of such assets was estimated using a combination of the cost approach and market approach. The cost approach uses replacement cost, and the market approach uses prices, for similar assets to determine the value of assets, and both approaches use Level 3 fair value inputs.

CAROs. The inputs in estimating the fair value of CAROs include: (i) the timing of when any such CARO cash flows may be incurred, (ii) incremental costs associated with special handling or treatment of CARO materials and (iii) the credit adjusted risk free rate applicable at the time additional CARO cash flows are estimated, all of which are considered Level 3 inputs as they involve significant judgment of the Company.

During 2010, the Company re-assessed and revised its estimates relating to the timing and future costs of various asbestos removal projects at one facility. Both upward and downward revisions relating to cost estimates were made. The following table summarizes the activity relating to the Company's CARO liabilities:

	Year Ended December 31,
	2011			2010			2009
Beginning balance	$	3.8		$	3.5		$	3.3
Liabilities incurred during the period	—			—			—
Liabilities settled during the period	(0.1		)	—			—
Accretion expense	0.3			0.3			0.2
Adjustment to accretion expense due to revisions to estimated cash flow1	—			(1.1		)	—
Revisions to estimated cash flow	—			1.1			—
Ending balance	$	4.0		$	3.8		$	3.5

^{__________________________________________} 

¹    The adjustment increased both basic and diluted earnings per share for 2010 by approximately $0.05 per share.    

The estimated fair value of CARO liabilities at December 31, 2011 and December 31, 2010 are based upon the application of a weighted-average credit-adjusted risk-free rate of 9.1%. CAROs are included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2).

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2011

Business Acquisition [Line Items]

Business acquisition, pro forma information

	Year Ended
	December 31,
	2011 1		2010
Net sales (combined)	$	1,301.3	$	1,110.7
Net income (combined)	$	25.1	$	16.9
Basic earnings per share (combined)	$	1.32	$	0.87
Diluted earnings per share (combined)	$	1.32	$	0.87

Select financial data (Net sales and net income before income taxes)

	Year Ended
	December 31, 2011
Net sales	$	42.8
Net income before income taxes	$	10.5

Alexco

Business Acquisition [Line Items]

Summary of estimated fair value and recognized amounts of assets and liabilities assumed

Allocation of purchase price:
Cash	$	4.9
Accounts receivable, net	3.6
Inventory	6.6
Property, plant and equipment	4.5
Definite-lived intangible assets:
Customer relationships	34.7
Backlog	0.3
Trademark and trade name	0.4
Goodwill	34.1
Accounts payable and other current liabilities	(1.0		)
Cash consideration paid	$	88.1

Nichols

Business Acquisition [Line Items]

Summary of estimated fair value and recognized amounts of assets and liabilities assumed

Allocation of purchase price:
Inventory	$	3.9
Other current assets	2.3
Property, plant and equipment	4.2
Definite lived intangible assets	4.3
Goodwill	3.1
Accounts payable and other current liabilities	(2.1		)
Consideration paid	$	15.7

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Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Subsequent Events (Textuals)
Cash dividend declared	$ 0.25
Quarterly cash dividend per share declared		$ 0.24	$ 0.24	$ 0.96	$ 0.96	$ 0.96
Dividend Declared
Subsequent Events (Textuals)
Quarterly cash dividends declared	$ 4.9

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Segment and Geographical Area Information

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Segment and Geographical Area Information

15. Segment and Geographical Area Information

The Company’s primary line of business is the production of semi-fabricated specialty aluminum products through 11 focused production facilities in the United States and one in Canada. The Company also owns a 49% interest in Anglesey, which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales. Although Anglesey is decommissioning a portion of the site and pursuing the disposition of some of its assets, Anglesey currently expects to continue to conduct secondary aluminum remelt and casting operations.  The Company does not expect those efforts to impact the Company's results or result in any distribution by Anglesey to its owners.

Each of the Company’s North American production facilities is an operating segment. Such operating segments are aggregated for reporting purposes to one reportable segment, Fabricated Products. The Fabricated Products segment sells value-added products, such as aluminum sheet and plate and extruded and drawn products, which are primarily used in aerospace/high strength, general engineering, automotive, and other industrial applications.

At December 31, 2011, the Company’s operations also consisted of three other business units, Secondary Aluminum, Hedging, and Corporate and Other. On January 1, 2012, the Company began reviewing the results of the primary aluminum hedging activities, which prior to January 1, 2012 had been reported in the Hedging business unit, with the results of the Fabricated Products segment because the Company had begun to conduct such hedging activities with respect to primary aluminum solely for the Fabricated Products segment. Accordingly, all segment information presented herein has been re-casted to reflect the inclusion of primary aluminum hedging activities in the Fabricated Products segment for all periods presented, which resulted in a (decrease) increase of $(25.0), $3.1, and $74.8 in operating income of the Fabricated Products segment for the years ended 2011, 2010 and 2009, respectively, and an increase of $0.6 and $28.6 in Fabricated Products segment assets as of December 31, 2011 and December 31, 2010, respectively.

The Secondary Aluminum business unit sells value-added products, such as ingot and billet, produced at Anglesey, for which the Company receives a portion of a premium over normal commodity market prices. The Hedging business unit conducted hedging activities in respect of British Pound Sterling exchange rate risk relating to Anglesey’s smelting operations through September 30, 2009. The Corporate and Other business unit provides general and administrative support for the Company’s operations. For purposes of segment reporting under GAAP, the Company combines the three other business units, Secondary Aluminum, Hedging and the Corporate and Other into one category, which is referred to as All Other. All Other is not considered a reportable segment.

The accounting policies of the Fabricated Products segment are the same as those described in Note 1. Segment results are evaluated internally by management before any allocation of corporate overhead and without any charge for income taxes, interest expense, or Other operating charges, net.

The following tables provide financial information by operating segment for each period or as of each period-end, as applicable:

	Year Ended December 31,
	2011			2010			2009
Net Sales:
Fabricated Products	$	1,301.3		$	1,078.8		$	897.1
All Other1	—			0.3			89.9
Total net sales	$	1,301.3		$	1,079.1		$	987.0
Segment Operating Income (Loss):
Fabricated Products 2,3	$	83.6		$	81.7		$	148.4
All Other4	(28.6		)	(40.6		)	(29.7		)
Total operating income	$	55.0		$	41.1		$	118.7
Interest expense	(18.0		)	(11.8		)	—
Other income (expense), net	4.3			(4.2		)	(0.1		)
Income before income taxes	$	41.3		$	25.1		$	118.6
Depreciation and Amortization:
Fabricated Products	$	24.8		$	19.4		$	16.2
All Other	0.4			0.4			0.2
Total depreciation and amortization	$	25.2		$	19.8		$	16.4
Capital expenditures:
Fabricated Products	$	32.1		$	38.0		$	58.5
All Other	0.4			0.9			0.7
Total capital expenditures	$	32.5		$	38.9		$	59.2

	December 31, 2011		December 31, 2010
Segment assets:
Fabricated Products	$	637.0	$	525.3
All Other5	683.6		793.6
Total assets	$	1,320.6	$	1,318.9

______________________

1 Net sales in All Other in 2010 represent residual activity involving primary aluminum purchased by the Company from Anglesey while it continued its smelting operations, prior to September 30, 2009, and resold by the Company in the first quarter of 2010. In connection with Anglesey’s remelt operations beginning in the fourth quarter of 2009, the Company changed its basis of revenue recognition from gross to a net basis (see Note 1).

2 Operating results in the Fabricated Products segment for 2011, 2010 and 2009 included non-cash LIFO inventory (benefits) charges of $(7.1), $16.5 and $8.7, respectively. Also included in the Fabricated Products segment operating results for 2009 were $9.3 of lower of cost or market inventory write-down and $5.4 of restructuring charges relating to the restructuring plans involving the Company's Tulsa, Oklahoma and Bellwood, Virginia facilities. Restructuring charges in 2011 and 2010 were not material. Also included in the Fabricated Products segment operating results for 2011, 2010 and 2009 were $1.7, $13.6 and $0.7, respectively, of environmental expense. Fabricated Products segment operating results for 2010 also included $3.9 of asset impairment charge relating to certain Property, plant and equipment.

3 Fabricated Products segment results for 2011, 2010 and 2009 include non-cash mark-to-market (losses) gains on primary aluminum, natural gas, electricity and foreign currency hedging activities totaling $(29.9), $(0.7) and $66.1, respectively. For further discussion regarding mark-to-market matters, see Note 12.

4 Operating results of All Other for 2009 include non-cash mark-to-market gain on foreign currency derivatives of $14.4. Also included in the operating income of All Other were $1.8 of impairment charges in 2009 relating to the Company's investment in Anglesey.

5 Assets in All Other represent primarily all of the Company’s cash and cash equivalents, financial derivative assets, net assets in respect of VEBA(s) and net deferred income tax assets.

Geographic information for net sales, based on country of origin, and income taxes paid are as follows:

	Year Ended December 31,
	2011		2010		2009
Net sales to unaffiliated customers:
Fabricated Products —
United States	$	1,195.1	$	991.2	$	840.1
Canada	106.2		87.6		57.0
Total Fabricated Products net sales	1,301.3		1,078.8		897.1
All Other —
United Kingdom	—		0.3		89.9
Total All Other net sales	—		0.3		89.9
Total net sales	$	1,301.3	$	1,079.1	$	987.0
Income Taxes Paid:
Fabricated Products —
United States	$	1.7	$	0.1	$	4.0
Canada	1.8		0.7		8.8
Total income taxes paid	$	3.5	$	0.8	$	12.8

The aggregate foreign currency transaction gains (losses) included in determining net income were immaterial for 2011, 2010 and 2009. Sales to the Company’s largest fabricated products customer accounted for sales of approximately 21%, 23% and 20% of total revenue in 2011, 2010 and 2009, respectively. The loss of the Company’s largest customer would have a material adverse effect on the Company taken as a whole. However, in the Company’s opinion, the relationship between the customer and the Company is good, and the risk of loss of the customer is remote. Export sales were approximately 14%, 13% and 10% of total revenue during 2011, 2010 and 2009, respectively.

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Goodwill and Intangible Assets, Amortization Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Expected amortization of intangible assets for the next five years
2012	$ 1.8
2013	1.7
2014	1.6
2015	1.6
2016	1.6
Thereafter	28.9
Total	37.2
Goodwill and Intangible Assets (Textuals)
Amortization expense related to definite-lived intangible assets recorded in Fabricated Products Segment	$ 2.2	$ 0.3	$ 0

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Statements of Consolidated Stockholders' Equity (Parenthetical) (Retained Earnings, USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash dividends declared on common stock (per share)	$ 0.96	$ 0.96	$ 0.96

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Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Receivables:
Allowance for doubtful receivables	$ 0.9	$ 0.6
Stockholders' equity:
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued and outstanding	19,253,185	19,214,451
Common stock owned by Union VEBA, shares	2,202,495	3,523,950
Treasury stock, shares	1,724,606	1,724,606

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Employee Benefits

12 Months Ended

Dec. 31, 2011

Compensation and Retirement Disclosure [Abstract]

Employee Benefits

Employee Benefits

Employee Plans. Employee benefit plans include:

• A defined contribution 401(k) savings plan for hourly bargaining unit employees at seven of the Company’s production facilities based on the specific collective bargaining agreement at each facility. For active bargaining unit employees at three of these production facilities, the Company is required to make fixed rate contributions. For active bargaining unit employees at one of these production facilities, the Company is required to match certain employee contributions. For active bargaining unit employees at two of these production facilities, the Company is required to make both fixed rate contributions and concurrent matches. For active bargaining unit employees at the one remaining production facility, the Company is not required to make any contributions. Fixed rate contributions either (i) range from (in whole dollars) $800 to $2,400 per employee per year, depending on the employee’s age, or (ii) vary between 2% to 10% of the employees’ compensation depending on their age and years of service for employees hired prior to January 1, 2004 or is a fixed 2% annual contribution for employees hired on or after January 1, 2004. The Company currently estimates that contributions to such plans will range from $1.0 to $3.0 per year.

• A defined contribution 401(k) savings plan for salaried and certain hourly employees providing for a concurrent match of up to 4% of certain contributions made by employees plus an annual contribution of between 2% and 10% of their compensation depending on their age and years of service to employees hired prior to January 1, 2004. All new hires on or after January 1, 2004 receive a fixed 2% contribution annually. The Company currently estimates that contributions to such plan will range from $4.0 to $6.0 per year.

• A defined benefit plan for salaried employees at the Company’s London, Ontario facility, with annual contributions based on each salaried employee’s age and years of service. At December 31, 2011, approximately 55% of the plan assets were invested in equity securities, and 40% of plan assets were invested in debt securities. The remaining plan assets were invested in short-term securities. The Company’s investment committee reviews and evaluates the investment portfolio. The asset mix target allocation on the long-term investments is approximately 55% in equity securities, 43% in debt securities and the remaining assets in short-term securities. See Note 13 for additional information regarding the fair values of the Canadian pension plan assets.

• A non-qualified, unfunded, unsecured plan of deferred compensation for key employees who would otherwise suffer a loss of benefits under the Company’s defined contribution plan as a result of the limitations imposed by the Internal Revenue Code of 1986 (the “Code”). Despite the plan being an unfunded plan, the Company makes an annual contribution to a rabbi trust to fulfill future funding obligations, as contemplated by the terms of the plan. The assets in the trust are at all times subject to the claims of the Company’s general creditors, and no participant has a claim to any assets of the trust. Plan participants are eligible to receive distributions from the trust subject to vesting and other eligibility requirements. Assets in the rabbi trust relating to the deferred compensation plan are accounted for as available for sale securities and are included as Other assets on the Consolidated Balance Sheets (see Note 2). Liabilities relating to the deferred compensation plan are included on the Consolidated Balance Sheets as Long-term liabilities (see Note 2).

• An employment agreement with the Company’s chief executive officer extending through July 6, 2015. The Company also provides certain members of senior management, including each of the Company’s named executive officers, with benefits related to terminations of employment in specified circumstances, including in connection with a change in control, by the Company without cause and by the executive officer with good reason.

Postretirement Medical Obligations. The Company’s postretirement medical plan was terminated in 2004. Certain eligible retirees receive medical coverage, however, through participation in the Union VEBA or the VEBA that provides benefits for certain other eligible retirees, their surviving spouse and eligible dependents (the “Salaried VEBA” and, together with the Union VEBA, the “VEBAs”). The Union VEBA covers qualifying bargaining unit employees who do not, or are not eligible to, elect coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985. The Salaried VEBA covers certain retirees who retired prior to the 2004 termination of the prior plan and employees who were hired prior to February 2002 and subsequently retired or will retire with the requisite age and service. The Union VEBA is managed by four trustees (two appointed by the Company and two appointed by the the United Steel, Paper and Foresting, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, AFL - CIO, CLC, or “USW”), and the assets are managed by an independent fiduciary. The Salaried VEBA is managed by trustees who are independent of the Company. The benefits paid by the VEBAs are at the sole discretion of the respective VEBA trustees and are outside the Company’s control.

As of December 31, 2011, the Union VEBA owned 2,202,495 common shares of the Company, or approximately 11% of the Company’s issued and outstanding shares of common stock. A stock transfer restriction agreement between the Union VEBA and the Company restricts the number of shares of the Company’s common stock that generally may be sold by the Union VEBA during any 12-month period without further approval of the Company's Board of Directors to 1,321,485. Shares owned by the Union VEBA that are subject to the stock transfer restriction agreement are treated as being similar to treasury stock (i.e. as a reduction of Stockholders' equity) in the Company's Consolidated Balance Sheet. In January 2012, in accordance with the stock transfer restriction agreement and our certificate of incorporation, our Board of Directors granted its written approval permitting the Union VEBA to sell any and all of the 1,321,485 shares that the Union VEBA would be entitled to sell during 12-month period beginning March 24, 2012 at any time during such 12-month period.

The following table presents the sale of Union VEBA shares by the Union VEBA in 2011 and 2010 (the Union VEBA was not authorized to sell any shares in 2009) and the effect on the Consolidated Balance Sheets due to these share sales:

	Year Ended
	December 31,
	2011			2010
Common stock sold by Union VEBA	1,321,485			1,321,485
Increase in Union VEBA assets 1	$	65.5		$	52.1
Reduction in Common stock owned by Union VEBA 2	$	(31.7	)	$	(31.8	)
Increase in Additional paid in capital	$	(8.8	)	$	(0.7	)
Decrease in Deferred tax assets	$	(25.0	)	$	(19.6	)

________________________

¹ At a weighted-average price of $49.58 and $39.39 per share realized by the Union VEBA for the years 2011 and 2010, respectively.

²     At $24.02 per share reorganization value.

The Company’s only financial obligations to the VEBAs are (i) a variable cash contribution payable to the VEBAs based upon a formula driven calculation and (ii) an obligation to pay the administrative expenses of the VEBAs, up to $0.3 per year. The obligation to the Union VEBA with respect to the variable cash contribution extends through September 30, 2017, while the obligation to the Salaried VEBA has no termination date. The amount to be contributed to the VEBAs through September 2017 pursuant to the Company’s obligation is 10% of the first $20.0 of annual cash flow (as defined; in general terms, the principal elements of cash flow are earnings before interest expense, provision for income taxes, and depreciation and amortization less cash payments for, among other things, interest, income taxes, and capital expenditures), plus 20% of annual cash flow, as defined, in excess of $20.0. Such payments may not exceed $20.0 and do not carryover to future years. Payments are also limited to the extent that such payments would cause the Company’s liquidity to be less than $50.0.

Amounts owing by the Company to the VEBAs are recorded in the Company's Consolidated Balance Sheets under Other accrued liabilities, with a corresponding increase in Net assets in respect of VEBAs. Such amounts are determined and paid on an annual basis. At December 31, 2010, the accrued variable contribution was $2.1 (comprised of $1.8 to the Union VEBA and $0.3 to the Salaried VEBA). These amounts were paid during the first quarter of 2011, along with an additional payment of $0.1, based on the final computation of the 2010 results. As of December 31, 2011, the Company determined that the variable contribution for 2011 was zero, as investments, capital spending, and interest exceeded earnings before interest expense, provision for income taxes, and depreciation and amortization. In addition to the contribution obligations, during 2011, 2010 and 2009, the Company recorded $0.3 each year in administrative expenses of the VEBAs.

The Company has no claim to the plan assets of the VEBAs or obligation to fund the liability or determine the benefits paid by the VEBAs, and its only financial obligation to the VEBAs are to pay the variable contributions and certain administrative fees. Nevertheless, based on discussions with the staff of the SEC, for accounting purposes the Company treats the postretirement medical benefits to be paid by the VEBAs and the Company’s related variable contribution as defined benefit postretirement plans with the current VEBA assets and future variable contributions described above, and earnings thereon, operating as a cap on the benefits to be paid. Accordingly, the Company accounts for net periodic postretirement benefit costs in accordance with ASC Topic 715, Compensation — Retirement Benefits, and records any difference between the assets of each VEBA and its accumulated postretirement benefit obligation in the Company’s consolidated financial statements. Information necessary for the valuation of the net funded status of the plans must be obtained from the VEBAs on an annual basis. While the funding status of the VEBAs could result in a liability position on the Company’s Consolidated Balance Sheets, such liability has no impact on the Company's cash flow, liquidity or funding obligation to the VEBAs.

Key Assumptions. The following data presents the key assumptions used and the amounts reflected in the Company’s financial statements with respect to the Company’s Canadian pension plan and the VEBAs.

The Company uses a December 31 measurement date for all of the plans.

Assumptions used to determine benefit obligations as of December 31 are:

	Canadian Pension Benefits				VEBA Benefits
	December 31, 2011		December 31, 2010		December 31, 2011				December 31, 2010
					Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA
Benefit obligations assumptions:
Discount rate	5.60	%	5.70	%	4.20	%	3.75	%	5.25	%	4.70	%
Rate of compensation increase	3.00	%	3.50	%	—		—		—		—
Initial medical trend rate 1	—		—		8.50	%	—		9.00	%	—
Ultimate medical trend rate 1	—		—		5.00	%	—		5.00	%	—

¹  The medical trend rate assumptions used for the Union VEBA were provided by the Union VEBA and certain industry data were provided by the Company's actuaries. The trend rate is assumed to decline to 5% by 2019 at December 31, 2011 and December 31, 2010. A one-percentage-point increase in the assumed medical trend rates would increase the accumulated postretirement benefit obligation of the Union VEBA by $50.5 and $37.0 at December 31, 2011 and December 31, 2010, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the accumulated postretirement benefit obligation of the Union VEBA by $40.8 and $30.4 at December 31, 2011 and December 31, 2010, respectively.

Key assumptions made in computing the net obligation of each VEBA and in total include:

With respect to VEBA assets:

• The shares of the Company’s common stock held by the Union VEBA that were not transferable have been excluded from assets used to compute the net asset or liability of the Union VEBA. There were 2,202,495 and 3,523,980 such shares at December 31, 2011 and December 31, 2010, respectively. Such shares will continue to be excluded until the restrictions lapse and are being accounted for similar to “treasury stock” in the interim (see Note 1).

• At December 31, 2011 and December 31, 2010, neither VEBA held any unrestricted shares of the Company’s common stock.

• Based on the information received from the VEBAs, at December 31, 2011 and December 31, 2010 both the Salaried VEBA and Union VEBA assets were invested in various managed proprietary funds. VEBA plan assets are managed by various investment advisors selected by the VEBA trustees, and are not under the control of the Company.

• The Company's variable payment, if any, is being treated as a funding/contribution policy and not counted as a VEBA asset at December 31 for actuarial purposes.

With respect to VEBA obligations:

• The accumulated postretirement benefit obligation (“APBO”) for each VEBA was computed based on the level of benefits being provided by each VEBA at December 31, 2011 and December 31, 2010.

• Since the Salaried VEBA was paying a fixed annual amount to its constituents at both December 31, 2011 and December 31, 2010, no future cost trend rate increase has been assumed in computing the APBO for the Salaried VEBA.

Assumptions used to determine net periodic benefit cost (income) for the years ended December 31 are:

	Canadian Pension Benefits						VEBA Benefits
	2011		2010		2009		2011				2010				2009
							Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA		Union VEBA		Salaried VEBA
Net periodic benefit cost assumptions:
Discount rate	5.70	%	6.70	%	7.50	%	5.25	%	4.70	%	5.80	%	5.40	%	6.00	%	6.00	%
Expected long term return on plan assets 1	5.40	%	5.40	%	6.00	%	6.00	%	7.25	%	4.75	%	7.25	%	5.75	%	7.25	%
Rate of compensation increase	3.50	%	3.50	%	3.30	%	—		—		—		—		—		—
Initial medical trend rate2	—		—		—		9.00	%	—		9.50	%	—		9.00	%	—
Ultimate medical trend rate2	—		—		—		5.00	%	—		5.00	%	—		5.00	%	—

_____________________

¹  The expected long-term rate of return assumption is based on the historical investment portfolios provided to the Company by the VEBAs’ trustees.

²  The medical trend rate assumptions were used for the Union VEBA, which is currently paying certain prescription drug benefits, and provided by the Union VEBA and industry data from the Company's actuaries. The trend rate is assumed to decline to 5% by 2019, 5% by 2019 and 5% by 2013 for 2011, 2010 and 2009, respectively. A one-percentage-point increase in the assumed medical trend rates would increase the aggregate of the service and interest cost components of net periodic benefit costs by $2.7, $2.7 and $2.4 for 2011, 2010 and 2009, respectively. A one-percentage-point decrease in the assumed medical trend rates would decrease the aggregate of the service and interest cost components of net periodic benefit costs by $2.1, $2.2, and $1.9 for 2011, 2010 and 2009, respectively.

Benefit Obligations and Funded Status — The following table presents the benefit obligations and funded status of the Company’s Canadian pension and the VEBAs as of December 31, 2011 and December 31, 2010, and the corresponding amounts that are included in the Company’s Consolidated Balance Sheets.

	Canadian Pension Benefits						VEBA Benefits
	2011			2010			2011			2010
Change in Benefit Obligation:
Obligation at beginning of year	$	5.4		$	4.1		$	348.6		$	344.8
Foreign currency translation adjustment	(0.1		)	0.2			—			—
Service cost	0.2			0.1			2.2			2.0
Interest cost	0.3			0.3			17.4			19.1
Actuarial (gain) loss1	(0.2		)	0.8			96.8			2.8
Plan participant contributions	—			0.1			—			—
Benefits paid by Company	(0.2		)	(0.2		)	—			—
Benefits paid by VEBA	—			—			(21.1		)	(23.2		)
Reimbursement from Retiree Drug Subsidy2	—			—			3.0			3.1
Obligation at end of year	5.4			5.4			446.9			348.6

Change in Plan Assets:
FMV of plan assets at beginning of year	4.9			4.1			506.6			422.4
Foreign currency translation adjustment	(0.1		)	0.2			—			—
Actual return on assets	(0.2		)	0.3			16.9			49.9
Plan participant contributions	—			0.1			—			—
Sale of Company's common stock by Union VEBA	—			—			65.5			52.1
Employer/Company contributions	0.5			0.4			0.1			2.3
Benefits paid by Company	(0.2		)	(0.2		)	—			—
Benefits paid by VEBA	—			—			(21.1		)	(23.2		)
Reimbursement from Retiree Drug Subsidy2	—			—			3.0			3.1
FMV of plan assets at end of year	4.9			4.9			571.0			506.6
Net Funded Status 3	$	(0.5	)	$	(0.5	)	$	124.1		$	158.0

_____________________________

¹  The actuarial loss relating to the VEBA plans in 2011 is comprised of (i) a loss of $31.4 resulting from an increase in benefit cost for plan participants, (ii) a loss of $53.5 resulting from a decrease in discount rates used to determine benefit obligations for both VEBA plans and (iii) a loss of $11.9 resulting from change in actuarial assumptions. The actuarial loss relating to the VEBA plans in 2010 is primarily the result of a change in the assumption in participant marital status in the Union VEBA and a change in annual benefit payment per participant in the Salaried VEBA.

²  In January 2005, the Department of Health and Human Services’ Centers for Medicare and Medicaid Services (CMS) released final regulations governing the Medicare prescription drug benefit and other key elements of the Medicare Modernization Act that went into effect January 1, 2006. The Union VEBA is eligible for the Retiree Drug Subsidy because the plan meets the definition of actuarial equivalence and therefore qualifies for federal subsidies equal to 28% of allowable drug costs. As a result, the Company has measured the Union VEBA’s obligations and costs to take into account this subsidy.

³  With respect to the Prepaid benefit of $124.1 relating to the VEBAs at December 31, 2011, of which $144.7 was included in Net asset in respect of VEBA and $20.6 was included in Net liability in respect of VEBA on the Consolidated Balance Sheet. Prepaid benefit of $158.0 relating to the VEBAs at December 31, 2010, was included in Net asset in respect of the VEBAs on the Consolidated Balance Sheets.

With respect to the VEBAs, the Company has no claim to the plan assets nor obligation to fund the liability. The Company's only financial obligation to the VEBA is the variable cash contribution discussed previously. The following table presents the net assets of each VEBA as of December 31, 2011 and December 31, 2010 (such information is also included in the tables required under GAAP above which roll forward the assets and obligations):

	December 31, 2011									December 31, 2010
	Union VEBA			Salaried VEBA			Total			Union VEBA			Salaried VEBA			Total
APBO	$	(370.0	)	$	(76.9	)	$	(446.9	)	$	(289.0	)	$	(59.6	)	$	(348.6	)
Plan assets	514.7			56.3			571.0			445.7			60.9			506.6
Net Funded Status	$	144.7		$	(20.6	)	$	124.1		$	156.7		$	1.3		$	158.0

The projected benefit obligation for the Canadian defined benefit pension plan was $4.9 and $4.8 at December 31, 2011 and December 31, 2010, respectively. The Company expects to contribute $0.5 to the Canadian pension plan in 2012.

As of December 31, 2011, the net benefits expected to be paid in each of the next five fiscal years and in aggregate for the five fiscal years thereafter are as follows:

	Benefit Payments Due by Period
	2012			2013			2014			2015			2016			2017-2021
Canadian pension plan benefit payments	$	0.2		$	0.3		$	0.3		$	0.3		$	0.3		$	1.8
VEBA benefit payments1	28.7			29.3			29.6			29.9			30.1			177.3
Anticipated Retiree Drug Subsidy	(3.1		)	(3.3		)	(3.5		)	(3.6		)	(3.7		)	(19.7		)
Total net benefits	$	25.8		$	26.3		$	26.4		$	26.6		$	26.7		$	159.4

__________________________________

¹ Such amounts were obtained from the VEBAs. The Company's only financial obligations to the VEBAs are to pay the variable contributions which may not exceed $20.0 annually and certain administrative fees.

The amount of (loss) income which is recognized in the Consolidated Balance Sheets (in Accumulated other comprehensive (loss) income) associated with the Company’s Canadian defined benefit pension plan and the VEBAs that have not yet been reflected in net periodic benefit cost as of December 31, 2011 were as follows:

	Canadian Pension Benefits						VEBA Benefits
	December 31, 2011			December 31, 2010			December 31, 2011			December 31, 2010
Accumulated net actuarial (losses) gains	$	(2.0	)	$	(1.8	)	$	(95.1	)	$	14.7
Transition assets	0.4			0.4			—			—
Prior service cost	—			—			(41.1		)	(45.3		)
Loss recognized in Accumulated other comprehensive (loss) income	$	(1.6	)	$	(1.4	)	$	(136.2	)	$	(30.6	)

The amounts in Accumulated other comprehensive (loss) income that have not yet been recognized as components of net periodic pension benefit costs at December 31, 2011 that are expected to be recognized in 2012 are $0.1 for the Canadian pension plan relating to transition assets and $7.2 for the VEBAs. Of the $7.2 relating to the VEBAs, $4.2 is related to amortization of prior service cost and $3.0 is related to amortization of net actuarial loss. See the Statement of Comprehensive (Loss) Income for reclassification adjustments of other comprehensive income that were recognized as components of net periodic benefit costs for 2011, 2010 and 2009.

    Fair Value of Plan Assets. See Note 13 for the fair values of the VEBAs and Canadian pension plan assets.

Components of Net Periodic Benefit Cost (Income) — The Company’s results of operations included the following impacts associated with the Canadian defined benefit plan and the VEBAs: (a) charges for service rendered by employees; (b) a charge for accretion of interest; (c) a benefit for the return on plan assets; and (d) amortization of net gains or losses on assets, prior service costs associated with plan amendments and actuarial differences. The following table presents the components of net periodic benefit cost (income) for 2011, 2010 and 2009:

	Canadian Pension Benefits									VEBA Benefits
	2011			2010			2009			2011			2010			2009
Service cost	$	0.2		$	0.1		$	0.1		$	2.2		$	2.0		$	2.2
Interest cost	0.3			0.3			0.2			17.4			19.1			18.7
Expected return on plan assets	(0.3		)	(0.2		)	(0.2		)	(30.4		)	(20.9		)	(21.0		)
Amortization of prior service cost2	—			—			—			4.2			4.2			1.6
Amortization of net loss	0.1			—			—			0.6			0.7			3.8
Net periodic benefit costs (income)	$	0.3		$	0.2		$	0.1		$	(6.0	)	$	5.1		$	5.3

__________________________

¹  The Company amortizes prior service cost on a straight-line basis over the average remaining years of service to full eligibility for benefits of the active plan participants.

The following tables present the total (income) charges related to all benefit plans for 2011, 2010 and 2009:

	Year Ended December 31,
	2011			2010		2009
Canadian pension plan	$	0.3		$	0.2	$	0.1
VEBAs	(6.0		)	5.1		5.3
Deferred compensation plan	0.2			1.3		0.4
Defined contribution plans	7.1			6.5		6.5
Total	$	1.6		$	13.1	$	12.3

The following tables present the allocation of these (income) charges:

	Year Ended December 31,
	2011			2010		2009
Fabricated Products	$	6.4		$	6.4	$	5.8
All Other	(4.8		)	6.7		6.5
Total	$	1.6		$	13.1	$	12.3

For all periods presented, the net periodic benefits relating to the VEBAs are included as a component of Selling, administrative, research and development and general expense within All Other and substantially all of the Fabricated Products segment’s related charges are in Cost of products sold, excluding depreciation, amortization and other items with the balance in Selling, administrative, research and development and general.

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Restructuring and Other Exit Activities Restructuring Reserve Rollforward Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Restructuring Cost and Reserve
Restructuring costs and other (benefits) charges	$ (0.3)	$ (0.3)	$ 5.4
Employee Severance
Restructuring Reserve Roll Forward
Restructuring obligations, beginning balance	0.4	2.3	4.5
Cash restructuring costs and other charges (benefits) incurred	(0.2)	(1.0)	3.3
Cash payments	(0.2)	(0.9)	(5.5)
Restructuring obligations, ending balance	0	0.4	2.3
Facility Closing
Other Exit Activities
Cash consideration from sale of Greenwood, South Carolina facility		4.8
Impairment charge in connection with the sale of Greenwood, South Carolina facility		1.9
Fabricated Products
Restructuring Cost and Reserve
Restructuring costs and other (benefits) charges	(0.3)		5.4
Fabricated Products | Employee Severance
Restructuring Cost and Reserve
Revision of estimated employee termination costs		1.0
Fabricated Products | Asset impairment related to restructuring plan
Restructuring Cost and Reserve
Restructuring costs and other (benefits) charges		$ 0.7

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Segment and Geographical Area Information, Financial Information by Operating Segment Table (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010		Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Net Sales:
Net sales	$ 317.6		$ 322.3	$ 338.8	$ 322.6	$ 265.8		$ 263.4	$ 282.4	$ 267.5	$ 1,301.3	[1]	$ 1,079.1		$ 987.0
Segment Operating Income (Loss):
Total operating income (loss)	15.6		4.9	14.7	19.8	11.6		12.3	3.2	14.0	55.0		41.1		118.7
Interest expense											(18.0)		(11.8)		0
Other income (expense), net											4.3		(4.2)		(0.1)
Income before income taxes											41.3		25.1		118.6
Depreciation and Amortization:
Depreciation and Amortization											25.2		19.8		16.4
Capital Expenditures:
Capital expenditures											32.5		38.9		59.2
Segment assets:
Total assets	1,320.6					1,318.9					1,320.6		1,318.9
Segment Reporting Information, Additional Information
Prior Period Reclassification Adjustment											(25.0)		3.1		74.8
Prior Period Reclassification Adjustment Balance Sheet	0.6					28.6					0.6		28.6
Lower of cost or market inventory write-down											0		0		9.3
Restructuring Charges											(0.3)		(0.3)		5.4
Environmental expenses included in operating results											3.9		13.9		2.4
Impairment charge											0		4.6		2.3
Unrealized (losses) gains on derivatives											(25.9)		(5.6)		80.5
Impairment of investment in Anglesey											0		0		(1.8)
Sales to Largest Customer Percentage											21.00%		23.00%		20.00%
Export Sales Percentage											14.00%		13.00%		10.00%
Fabricated Products
Net Sales:
Net sales											1,301.3		1,078.8		897.1
Segment Operating Income (Loss):
Total operating income (loss)											83.6	[2],[3]	81.7	[2],[3]	148.4	[2],[3]
Depreciation and Amortization:
Depreciation and Amortization											24.8		19.4		16.2
Capital Expenditures:
Capital expenditures											32.1		38.0		58.5
Segment assets:
Total assets	637.0					525.3					637.0		525.3
Segment Reporting Information, Additional Information
Non-cash LIFO inventory (benefits) charges											(7.1)		16.5		8.7
Restructuring Charges											(0.3)				5.4
Environmental expenses included in operating results											1.7		13.6		0.7
Impairment charge													3.9
Unrealized (losses) gains on derivatives											(29.9)		(0.7)		66.1
All Other
Net Sales:
Net sales											0	[4]	0.3	[4]	89.9	[4]
Segment Operating Income (Loss):
Total operating income (loss)											(28.6)	[5]	(40.6)	[5]	(29.7)	[5]
Depreciation and Amortization:
Depreciation and Amortization											0.4		0.4		0.2
Capital Expenditures:
Capital expenditures											0.4		0.9		0.7
Segment assets:
Total assets	683.6	[6]				793.6	[6]				683.6	[6]	793.6	[6]
Segment Reporting Information, Additional Information
Impairment of investment in Anglesey															1.8
Anglesey Aluminum Limited
Segment Reporting Information, Additional Information
Ownership Percentage of Anglesey	49.00%										49.00%
Aluminum
Segment Reporting Information, Additional Information
Unrealized (losses) gains on derivatives											(26.5)		3.6		61.2
Foreign Currency
Segment Reporting Information, Additional Information
Unrealized (losses) gains on derivatives											0		0.1		15.6
Foreign Currency | All Other
Segment Reporting Information, Additional Information
Unrealized (losses) gains on derivatives															$ 14.4

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

[2] Fabricated Products segment results for 2011, 2010 and 2009 include non-cash mark-to-market (losses) gains on primary aluminum, natural gas, electricity and foreign currency hedging activities totaling $(29.9), $(0.7) and $66.1, respectively. For further discussion regarding mark-to-market matters, see Note 12.

[3] Operating results in the Fabricated Products segment for 2011, 2010 and 2009 included non-cash LIFO inventory (benefits) charges of $(7.1), $16.5 and $8.7, respectively. Also included in the Fabricated Products segment operating results for 2009 were $9.3 of lower of cost or market inventory write-down and $5.4 of restructuring charges relating to the restructuring plans involving the Company's Tulsa, Oklahoma and Bellwood, Virginia facilities. Restructuring charges in 2011 and 2010 were not material. Also included in the Fabricated Products segment operating results for 2011, 2010 and 2009 were $1.7, $13.6 and $0.7, respectively, of environmental expense. Fabricated Products segment operating results for 2010 also included $3.9 of asset impairment charge relating to certain Property, plant and equipment.

[4] Net sales in All Other in 2010 represent residual activity involving primary aluminum purchased by the Company from Anglesey while it continued its smelting operations, prior to September 30, 2009, and resold by the Company in the first quarter of 2010. In connection with Anglesey’s remelt operations beginning in the fourth quarter of 2009, the Company changed its basis of revenue recognition from gross to a net basis (see Note 1).

[5] Operating results of All Other for 2009 include non-cash mark-to-market gain on foreign currency derivatives of $14.4. Also included in the operating income of All Other were $1.8 of impairment charges in 2009 relating to the Company's investment in Anglesey.

[6] Assets in All Other represent primarily all of the Company’s cash and cash equivalents, financial derivative assets, net assets in respect of VEBA(s) and net deferred income tax assets.

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Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Feb. 23, 2012	Jun. 30, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	Kaiser Aluminum Corp
Entity Central Index Key	0000811596
Document Type	8-K
Document Period End Date	Dec. 31, 2011
Amendment Flag	false
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 0.9
Entity Common Stock, Shares Outstanding		19,253,185

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Multiemployer Pension Plans

12 Months Ended

Dec. 31, 2011

Multiemployer Plans [Abstract]

Multiemployer Pension Plans Disclosure

Multiemployer Pension Plans

Overview. The Company has employees represented by USW, International Association of Machinists (“IAM”) and International Brotherhood of Teamsters (“Teamsters”) and contributes to the respective multiemployer defined benefit pension plans under the terms of collective-bargaining agreements that cover its union-represented employees. The Company currently estimates that contributions will range from $2.0 to $4.0 per year through 2015.

The risks of participating in these multiemployer plans are different from single-employer plans in the following aspects:

a. Assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers.

b. If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers.

c. If the Company chooses to stop participating in some of its multiemployer plans, the Company may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability. The Company has effectuated a complete withdrawal from the Teamster Local Union 786 Building Materials pension fund effective October 28, 2011 as a result of terminating the Plainfield, Illinois operation. The Company did not incur material liability or cash payments in connection with the withdrawal from this pension fund in 2011.

The Company's participation in material multiemployer pension plans for the annual period ended December 31, 2011, is outlined in the table below.

Pension Fund	EIN/Pension Plan Number1	Pension Protection Act Zone Status2		FIP/RP Status Pending/Implemented in 20113	Contributions of the Company						Surcharge Imposed in 2011	Expiration Date of Collective-Bargaining Agreement
		2010	2009		2011		2010		2009
Steelworkers Pension Trust (USW)4	23-6648508	Green	Green	No	$	2.6	$	2.4	$	2.3	No	Mar 2014 - Sep 2015
National Pension Plan(IAM)5	51-6031295	Green	Green	No	0.3		0.3		0.4		No	Dec 2013 - Nov 2014
Western Conference of Teamsters Pension Plan (Teamsters)6	91-6145047	Green	Green	No	0.3		0.2		0.3		No	May 2012
Canada Wide Industrial Pension Plan7	920120	N/A	N/A	N/A	0.4		0.4		0.3		N/A	Feb 2012
					$	3.6	$	3.3	$	3.3

________________

¹  The “EIN/Pension Plan Number” column provides the Employee Identification Number (EIN) and the three-digit plan number, if applicable.

²  Unless otherwise noted, the most recent Pension Protection Act (PPA) zone status available in 2011 and 2010 is for the plan's year-end at December 31, 2010, and December 31, 2009, respectively. The zone status is based on information that the Company received from the plan and is certified by the plan's actuary. Among other factors, plans in the red zone are generally less than 65% funded, plans in the yellow zone are less than 80% funded, and plans in the green zone are at least 80% funded.

³  The “FIP/RP Status Pending/Implemented” column indicates plans for which a Financial Improvement Plan (FIP) or a Rehabilitation Plan (RP) is either pending or has been implemented under the PPA.

⁴  The Company is party to three collective-bargaining agreements that require contributions to the Steelworkers Pension Trust. Current union contracts covering employees at the Newark, Ohio and Spokane, Washington facilities, Florence, Alabama facility and Richmond (Bellwood), Virginia facility expire in September 2015, March 2014 and November 2014, respectively. Of the three, the union contract covering employees at the Newark, Ohio and Spokane, Washington facilities is more significant because 80% of the Company's USW-represented employees are covered by that agreement. The union contracts covering employees at the Bellwood, Virginia facility and Florence, Alabama facility cover 14% and 6% of the Company's USW-related employees, respectively. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the Steelworkers Pension Trust except that (i) the monthly contributions per hour worked by each bargaining unit employee at the Company’s Newark, Ohio and Spokane, Washington facilities increased to (in whole dollars) $1.25 starting July 2010 and will increase to (in whole dollars) $1.50 in July 2015 and (ii) monthly contributions per hour worked by each bargaining unit employee at at the Florence, Alabama facility are (in whole dollars) $1.25 per hour. The Company is also party to two other collective-bargaining agreements covering employees at the Chandler, Arizona (Tube) and Kalamazoo, Michigan facilities. However, these agreements do not require contributions from the Company to the Steelworkers Pension Trust because the employees at these facilities are covered under the Company's defined contribution 401(k) savings plan.

⁵  The Company is party to two significant collective-bargaining agreements that require contributions to the National Pension Plan. Current union contracts covering employees at the Richmond (Bellwood), Virginia, and Sherman, Texas facilities expire in November 2014 and December 2013, respectively. Of the two, the union contract covering employees at the Sherman, Texas facility is more significant because 89% of the Company's IAM-represented employees are covered by that agreement. The union contract covering employees at the Richmond (Bellwood), Virginia facility covers 11% of the Company's IAM-represented employees. The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee to the National Pension Plan.

⁶  The Company makes monthly contributions of (in whole dollars) $1.00 per hour worked by each bargaining unit employee at the Los Angeles, California facility to the Western Conference of Teamsters Pension Plan.

⁷  The Company makes monthly contributions of (in whole dollars) $1.15 per hour worked by each bargaining unit employee at the London, Ontario facility to the Canada Wide Industrial Pension Plan. Information relating to the Pension Protection Act zone status, FIP/RIP status and surcharge imposed are not applicable to this plan because it is a Canadian plan that does not follow the same regulations as plans that are U.S. based.

The Company was not listed in any of the plans' Forms 5500 as providing more than 5% of the total contributions for any of the plan years disclosed. At December 31, 2011, Forms 5500 were not available for the plan years ending in 2011. Further, there were no significant changes to the number of employees covered by the Company's multiemployer plans that would affect the period-to-period comparability of the contributions for the years presented.

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Commitments and Contingencies, Textuals (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Commitments and Contingencies Disclosure [Abstract]
Minimum rental commitments under operating lease, 2012	$ 7.5
Minimum rental commitments under operating lease, 2013	6.4
Minimum rental commitments under operating lease, 2014	3.6
Minimum rental commitments under operating lease, 2015	3.0
Minimum rental commitments under operating lease, 2016	2.3
Minimum rental commitments under operating lease, thereafter	33.0
Rental expense	$ 10.0	$ 9.9	$ 7.3

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Earnings Per Share, Other Disclosures (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended			12 Months Ended
	Jun. 30, 2008	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Feb. 15, 2012
Potential dilutive effect of options and Warrants
Options outstanding to purchase common shares			20,791		20,791	22,077
Average exercise price per share			$ 80.01		$ 80.01	$ 80.01
Potential dilutive effect of shares underlying the options					0	0	0
Number of common shares underlying the Warrants outstanding			3,600,000		3,600,000
Average Exercise price of common shares underlying warrants			61.36		61.36			61.35
Potential dilutive effect of shares underlying the Warrants					0	0
Dividends
Payment of cash dividends to stockholders					$ 18.9	$ 19.0	$ 19.6
Cash dividend paid per share		$ 0.24	$ 0.24		$ 0.96	$ 0.96	$ 0.96
Repurchase of common stock
Amount authorized by Board to be repurchased	75.0
Common stock available for repurchase					46.9
Cost of common stock repurchased				$ 44.2
Common stock repurchased, shares				1,151,900

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Statements of Consolidated Income (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Net sales	$ 1,301.3	[1]	$ 1,079.1		$ 987.0
Cost of products sold:
Cost of products sold, excluding depreciation, amortization, and other items	1,158.9		946.8		766.4
Lower of cost or market inventory write-down	0		0		9.3
Impairment of investment in Anglesey	0		0		1.8
Restructuring costs and other (benefits) charges	(0.3)		(0.3)		5.4
Depreciation and amortization	25.2		19.8		16.4
Selling, administrative, research and development, and general	62.7		67.7		69.9
Other operating (benefits) charges, net	(0.2)		4.0		(0.9)
Total costs and expenses	1,246.3		1,038.0		868.3
Operating income	55.0		41.1		118.7
Other (expense) income:
Interest expense	(18.0)		(11.8)		0
Other income (expense), net	4.3		(4.2)		(0.1)
Income before income taxes	41.3		25.1		118.6
Income tax provision	(16.2)		(13.1)		(48.1)
Net income	$ 25.1	[1]	$ 12.0		$ 70.5
Earnings per common share, Basic:
Net income per share	$ 1.32	[1]	$ 0.61		$ 3.51
Earnings per common share, Diluted:
Net income per share	$ 1.32	[1]	$ 0.61		$ 3.51
Weighted-average number of common shares outstanding (000):
Basic	18,979	[2]	19,377	[2]	19,639	[2]
Diluted	18,979	[2]	19,377	[2]	19,639	[2]

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

[2] The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The diluted weighted-average number of common shares outstanding during the period is calculated under the two-class method, which does not take into account the dilutive effect of the unvested share-based payment awards.

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Cash Convertible Senior Notes and Related Transactions

12 Months Ended

Dec. 31, 2011

Cash Convertible Senior Notes and Related Transactions [Abstract]

Cash Convertible Senior Notes and Related Transaction

Cash Convertible Senior Notes and Related Transactions

Indenture. In March 2010, the Company issued $175.0 principal amount of 4.5% Cash Convertible Senior Notes due April 2015 (the "Notes"). The Notes pay interest semi-annually in arrears on April 1 and October 1. The Company accounts for the cash conversion feature of the Notes (the “Bifurcated Conversion Feature”) as a separate derivative instrument with the fair value on the issuance date equaling the original issue discount ("OID") for purposes of accounting for the debt component of the Notes. Additionally, the initial purchasers' discounts and transaction fees of $5.9 were capitalized as deferred financing costs. The effective interest rate of the Notes is approximately 11% per annum, taking into account the amortization of the OID and deferred financing costs.

The following tables provide additional information regarding the Notes:

	December 31, 2011			December 31, 2010
Principal amount	$	175.0		$	175.0
Less: unamortized issuance discount	$	(27.0	)	(33.6		)
Carrying amount, net of discount	$	148.0		$	141.4

	Year Ended
	December 31,
	2011		2010
Contractual coupon interest	$	8.4	$	6.0
Amortization of discount and deferred financing costs	7.8		5.3
Total interest expense1	$	16.2	$	11.3

____________

¹  A portion of the interest relating to the Notes is capitalized as Construction in progress.

See Note 13 for information relating to the estimated fair value of the Notes.

Holders may convert their Notes at any time on or after January 1, 2015. The Notes' conversion rate is subject to adjustment based on the occurrence of certain events, including, but not limited to (i) the payment of quarterly cash dividends on the Company's common stock in excess of $0.24 per share, (ii) certain other stock or cash dividends, (iii) the issuance of certain rights, options or warrants, (iv) the effectuation of share splits or combinations, (v) certain distributions of property, and (vi) certain issuer tender or exchange offers. The Company's quarterly dividend paid in February 2012 exceeded $0.24 per share (see Note 21), which caused the conversion rate to increase slightly to 20.6991 shares per $1,000 principal amount of the Notes and the equivalent conversion price to decrease slightly to approximately $48.31 per share.

Holders of the Notes can require the Company to repurchase the Notes at a price equal to 100% of the principal amount plus any accrued and unpaid interest following a fundamental change. Fundamental changes include, but are not limited to, (i) certain ownership changes, (ii) certain recapitalizations, mergers and dispositions, (iii) shareholders' approval of any plan or proposal for the liquidation or dissolution of the Company, and (iv) failure of the Company's common stock to be listed on certain stock exchanges. Additionally, holders may convert their Notes before January 1, 2015, only in certain limited circumstances determined by (i) the trading price of the Notes, (ii) the occurrence of specified corporate events, or (iii) the market price of the Company's common stock. For example, if the Company's closing stock price exceeds $62.80 for 20 trading days during a period of 30 consecutive trading days ending on a calendar quarter, the Notes may be converted by one or more holders. The Company believes in this circumstance, the market value of the Notes will exceed the value of shares into which they can convert, making such an early conversion unlikely. No fundamental changes nor circumstances that could allow early conversion existed as of December 31, 2011 or the date hereof. The Notes are not convertible into the Company’s common stock or any other securities under any circumstances, but instead will be settled in cash.

Convertible Note Hedge Transactions. In March 2010, the Company purchased Call Options that have an exercise price equal to the conversion price of the Notes and an expiration date equal to the maturity or earlier conversion date of the Notes. The Call Options and the Notes have substantially similar anti-dilution adjustment provisions, including adjustments for payments of quarterly cash dividends in excess of $0.24 per share. Mirroring anti-dilution adjustments for the Notes, the February 2012 dividend payment caused the Call Options' exercise price to be adjusted downward slightly to approximately $48.31 per share, and the number of shares into which the Call Options can convert to be increased by an immaterial amount. Because the Call Options are settled in cash, if the market price per share of the Company's common stock at the time of cash conversion of any Notes is above the strike price of the Call Options, the Company is entitled to receive from the counterparties to the Call Options an aggregate amount equaling the amount of cash that the Company would be required to deliver to the holders of the converted Notes, less the principal amount thereof.

In March 2010, the Company also sold net-share-settled warrants (the “Warrants”) relating to approximately 3.6 million shares of the Company's common stock. The Warrants cannot be exercised prior to the expiration date of July 1, 2015 and are subject to certain anti-dilution adjustments, including adjustments for payments of quarterly cash dividends in excess of $0.24 per share. The February 2012 quarterly dividend payment triggered an anti-dilution provision which caused a slight downward adjustment to the Warrants' exercise price (to approximately $61.35 per share) and an immaterial increase in the number of shares to which the Warrants relate. At expiration, if the market price per share of the Company's common stock exceeds the strike price of the Warrants, the Company will be obligated to issue shares of the Company's common stock having a value equal to such excess. The Warrants meet the definition of derivatives but are not subject to fair value accounting because they are indexed to the Company's common stock and meet the requirement to be classified as equity instruments.

The Call Options and Warrant transactions are separate transactions and are not part of the terms of the Notes and do not affect the rights of holders under the Notes.

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Supplemental Balance Sheet Information

12 Months Ended

Dec. 31, 2011

Supplemental Balance Sheet Information [Abstract]

Supplemental Balance Sheet Information

Supplemental Balance Sheet Information

	December 31, 2011			December 31, 2010
Trade Receivables.
Billed trade receivables	$	98.9		$	82.5
Unbilled trade receivables — Note 1	0.9			1.1
Trade receivables, gross	99.8			83.6
Allowance for doubtful receivables	(0.9		)	(0.6		)
Trade receivables, net	$	98.9		$	83.0

Inventories.
Finished products	$	75.9	$	53.8
Work in process	57.5		49.6
Raw materials	58.1		50.9
Operating supplies and repairs and maintenance parts	14.2		13.2
Total	$	205.7	$	167.5

Prepaid Expenses and Other Current Assets.
Current derivative assets — Notes 12 and 13	$	—	$	22.1
Current deferred tax assets	63.0		46.8
Current portion of option premiums paid - Notes 12 and 13	0.4		5.6
Short-term restricted cash	7.8		0.9
Prepaid taxes	3.8		1.3
Prepaid expenses	3.9		3.4
Total	$	78.9	$	80.1

Property, Plant and Equipment.
Land and land improvements	$	22.6		$	23.3
Buildings and leasehold improvements	45.9			43.5
Machinery and equipment	356.7			338.0
Construction in progress	24.1			7.7
Active property, plant and equipment, gross	449.3			412.5
Accumulated depreciation	(86.9		)	(63.9		)
Active property, plant, and equipment, net	362.4			348.6
Idled equipment	5.4			5.5
Property, plant, and equipment, net	$	367.8		$	354.1

Other Assets.
Derivative assets — Notes 12 and 13	$	46.2	$	50.8
Option premiums paid — Notes 12 and 13	0.1		0.6
Restricted cash	10.4		16.3
Long-term income tax receivable	2.8		2.9
Deferred financing costs	7.8		7.7
Available for sale securities	4.9		4.6
Other	0.1		0.1
Total	$	72.3	$	83.0

Other Accrued Liabilities.
Current derivative liabilities — Notes 12 and 13	$	14.8	$	8.9
Current portion of option premiums received — Notes 12 and 13	0.1		7.0
Current portion of income tax liabilities	—		1.1
Accrued income taxes and taxes payable	2.6		1.8
Accrued annual VEBA contribution	—		2.1
Accrued freight	2.4		1.9
Short-term environmental accrual — Note 11	1.2		1.1
Accrued interest	2.3		2.1
Short-term deferred revenue — Note 1	13.5		10.8
Other	4.1		5.2
Total	$	41.0	$	42.0

Long-term Liabilities.
Derivative liabilities — Notes 12 and 13	$	55.5	$	62.2
Option premiums received — Notes 12 and 13	0.1		0.3
Income tax liabilities	13.4		12.9
Workers’ compensation accruals	20.8		15.9
Long-term environmental accrual — Note 11	20.8		19.1
Long-term asset retirement obligations	3.8		3.8
Long-term deferred revenue - Note 1	3.3		13.2
Deferred compensation liability	5.1		4.9
Other long-term liabilities	3.2		2.4
Total	$	126.0	$	134.7

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Earnings Per Share

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Basic and diluted earnings per share for 2011, 2010 and 2009 were calculated as follows:

	Year Ended December 31,
	2011		2010			2009
Numerator:
Net income	$	25.1	$	12.0		$	70.5
Less: Net income attributable to participating securities	—		(0.1		)	(1.6		)
Net income available to common stockholders	$	25.1	$	11.9		$	68.9
Denominator - Weighted-average common shares outstanding (000):1
Basic	18,979		19,377			19,639
Diluted	18,979		19,377			19,639
Earnings per common share, Basic:
Net income per share	$	1.32	$	0.61		$	3.51
Earnings per common share, Diluted:
Net income per share	$	1.32	$	0.61		$	3.51

_____________

¹  The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The diluted weighted-average number of common shares outstanding during the period is calculated under the two-class method, which does not take into account the dilutive effect of the unvested share-based payment awards.

The following table provides a detail of net income attributable to participating securities for 2011, 2010 and 2009:

	Year Ended			Year Ended			Year Ended
	December 31, 2011			December 31, 2010			December 31, 2009
Net income attributable to participating securities:1
Distributed income	$	—		$	0.1		$	0.4
Undistributed income	—			—			1.2
Total net income attributable to participating securities	$	—		$	0.1		$	1.6
Percentage of undistributed net income apportioned to participating securities	—		%	—		%	2		%

__________________________

¹  Net income attributable to participating securities for a given period includes both distributed and undistributed net income, as applicable. Distributed net income attributed to participating securities represents dividend and dividend equivalents declared on the participating securities that the Company expects to ultimately vest. Undistributed net income for a given period, if any, is apportioned to participating securities based on the weighted-average number of each class of securities outstanding during the applicable period as a percentage of the combined weighted-average number of these securities outstanding during the period. Undistributed losses are not allocated to participating securities, however, as holders of such securities do not have an obligation to fund net losses of the Company.

Options to purchase 20,791 common shares at an average exercise price of $80.01 per share were outstanding at December 31, 2011. The potential dilutive effect of options outstanding was zero for 2011, 2010 and 2009. Warrants relating to approximately 3.6 million common shares at an initial average exercise price of approximately $61.36 per share were outstanding at December 31, 2011. The potential dilutive effect of shares underlying the Warrants was zero for 2011 and 2010.

During 2011, 2010 and 2009, the Company paid a total of approximately $18.9 ($0.96 per common share), $19.0 ($0.96 per common share), and $19.6 ($0.96 per common share), respectively, in cash dividends to stockholders, including the holders of restricted stock, and dividend equivalents to the holders of restricted stock units and to the holders of any performance shares with respect to one half of the performance shares.

In June 2008, the Company’s Board of Directors authorized the repurchase of up to $75.0 of the Company’s common shares, with repurchase transactions to occur in open market and privately negotiated transactions at such times and prices as deemed appropriate by management and to be funded with the Company’s excess liquidity after giving consideration to internal and external growth opportunities and cash flows. At December 31, 2011, $46.9 was available for additional share repurchase.

During the first quarter of 2010, pursuant to a separate authorization from the Company's Board of Directors, the Company repurchased $44.2, or 1,151,900 shares of the Company's outstanding common stock, in privately negotiated, off-market transactions with purchasers of the Notes.

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Employee Incentive Plans

12 Months Ended

Dec. 31, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Employee Incentive Plans

Employee Incentive Plans

Short-term Incentive Plans (“STI Plans”)

The Company has a short-term incentive compensation plan for senior management and certain other employees payable at the Company’s election in cash, shares of common stock, or a combination of cash and shares of common stock. Amounts earned under the plan are based primarily on EVA of the Company’s core Fabricated Products business, adjusted for certain safety and performance factors. EVA, as defined by the Company's STI Plans, is a measure of the excess of the Company’s adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year, measured over a one year period. Most of the Company’s production facilities have similar programs for both hourly and salaried employees.

Total costs relating to STI Plans were recorded as follows, for each period presented:

	Year Ended December 31,
	2011		2010		2009
Cost of products sold	$	3.2	$	2.9	$	2.8
Selling, administrative, research and development and general	5.2		3.9		3.2
Total costs recorded in connection with STI Plans	$	8.4	$	6.8	$	6.0

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2011		2010		2009
Fabricated Products segment	$	5.9	$	4.8	$	4.7
All Other	2.5		2.0		1.3
Total costs recorded in connection with STI Plans	$	8.4	$	6.8	$	6.0

Long- term Incentive Programs

General. Officers and other key employees of the Company or one or more of its subsidiaries, as well as directors of the Company, are eligible to participate in the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan (as amended, the “Equity Incentive Plan”). The Equity Incentive Plan permits the granting of awards in the form of options to purchase common shares, stock appreciation rights, shares of non-vested and vested stock, restricted stock units, performance shares, performance units and other awards. The Equity Plan was originally effective as of July 6, 2006 and amended and restated from time to time. On June 1, 2010, the Board amended and restated the Plan in its entirety, with such amendment and restatement effective as of June 8, 2010, the date the Plan as so amended and restated was approved by the Company's stockholders. Effective as of February 8, 2012, the Board again amended and restated the Plan in its entirety to clarify that the maximum number of shares that the Company may withhold in connection with income realization cannot exceed the minimum amount of shares necessary to satisfy the payment of the statutorily minimum amount of taxes that the Company is required to withhold in connection with such income realization.The Equity Incentive Plan will expire on July 6, 2016, and no grants will be made thereunder after that date. The Company’s Board of Directors may, in its discretion, terminate the Equity Incentive Plan at any time. The termination of the Equity Incentive Plan will not affect the rights of participants or their successors under any awards outstanding and not exercised in full on the date of termination, and all grants made on or prior to the date of termination will remain in effect thereafter subject to the terms of the applicable grant agreement and the Equity Incentive Plan. Subject to certain adjustments that may be required from time to time to prevent dilution or enlargement of the rights of participants under the Equity Incentive Plan, a total of 2,722,222 common shares have been authorized for issuance under the Equity Incentive Plan. At December 31, 2011, 845,499 common shares were available for additional awards under the Equity Incentive Plan. Compensation charges relating to all awards under the Equity Incentive Plan are included in Selling, administrative, research and development expenses.

Non-vested Common Shares, Restricted Stock Units, and Performance Shares. The Company grants non-vested common shares to its non-employee directors, executive officers and other key employees. The non-vested common shares granted to non-employee directors are generally subject to a one-year vesting requirement. The non-vested common shares granted to executive officers and senior management are generally subject to a three-year cliff vesting requirement. The non-vested common shares granted to other key employees are generally subject to a three-year graded vesting requirement. In addition to non-vested common shares, the Company also grants restricted stock units to certain employees. The restricted stock units have rights similar to the rights of non-vested common shares, and the employee will receive one common share for each restricted stock unit upon the vesting of the restricted stock unit. With the exception of restricted stock units granted to eligible employees of the Company’s French subsidiary, restricted stock units are generally subject to a three-year graded vesting requirement, with one-third of the restricted stock units vesting on each of the first, second and third anniversary of the grant date. Restricted stock units granted to eligible employees of the Company’s French subsidiary vest two-thirds on the second anniversary of the grant date and one-third on the third anniversary of the grant date.

The Company also grants performance shares to executive officers and other key employees. Such awards are subject to performance requirements pertaining to the Company’s EVA performance (as set forth in each year’s LTI program), measured over the applicable three-year performance period. EVA is a measure of the excess of the Company’s adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year. The number of performance shares, if any, that will ultimately vest and result in the issuance of common shares depends on the average annual EVA achieved for the specified three-year performance periods. During the quarter ended March 31, 2011, a portion of the performance shares granted under the 2008-2010 LTI program vested (see “Summary of Activity” below). The vesting of performance shares and resulting issuance and delivery of common shares, if any, under the 2009-2011 LTI program, 2010-2012 LTI program and 2011-2013 LTI program will occur in 2012, 2013 and 2014, respectively. Holders of performance shares do not receive voting rights through the ownership of such performance shares.

Non-cash Compensation Expense. Recorded costs by type of award under LTI programs were as follows, for each period presented:

	Year Ended December 31,
	2011		2010		2009
Service-based non-vested common shares and restricted stock units	$	4.1	$	3.6	$	7.9
Performance shares	1.1		0.8		0.9
Service-based stock options	—		0.1		0.3
Total non-cash compensation expense	$	5.2	$	4.5	$	9.1

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2011		2010		2009
Fabricated Products 1	$	1.5	$	1.4	$	3.5
All Other	3.7		3.1		5.6
Total non-cash compensation expense	$	5.2	$	4.5	$	9.1

_________

¹  Of the $3.5 compensation charge allocated to the Fabricated Products segment in 2009, $0.8 of the amount relates to the accelerated vesting of previously granted stock-based payments in connection with the Company's restructuring efforts in 2009 (see Note 16).

Unrecognized Gross Compensation Cost Data. The following table presents unrecognized gross compensation cost data, by type of award:

	December 31, 2011
	Unrecognized gross compensation costs, by award type		Expected period (in years) over which the remaining gross compensation costs will be recognized, by award type
Service-based non-vested common shares and restricted stock units	$	3.1	1.7
Performance shares	$	3.1	2.0

Summary of Activity. A summary of the activity with respect to non-vested common shares, restricted stock units and performance shares for the year ended December 31, 2011 is as follows:

	Non-Vested Common Shares				Restricted Stock Units				Performance Shares
	Shares		Weighted-Average Grant-Date Fair Value per Share		Units		Weighted-Average Grant-Date Fair Value per Unit		Shares		Weighted-Average Grant-Date Fair Value per Share
Outstanding at December 31, 2010	268,864		$	27.91	7,872		$	21.74	686,895		$	26.84
Granted	83,066		47.07		2,182		46.59		188,741		46.65
Vested	(146,205	)	36.84		(3,982	)	17.16		(13,462	)	62.83
Forfeited	(2,889	)	33.47		—		—		(15,441	)	26.24
Canceled	—		—		—		—		(68,799	)	74.34
Outstanding at December 31, 2011	202,836		$	29.24	6,072		$	33.67	777,934		$	26.84

The total grant-date fair value for shares granted during 2011, 2010 and 2009 was $12.8, $10.5 and $9.6, respectively. Total grant-date fair value for shares that vested during 2011, 2010 and 2009 was $6.3, $2.6 and $21.6.

Stock Options. As of December 31, 2011 and 2010, there were 20,791 and 22,077 fully-vested options outstanding, respectively, in each case exercisable to purchase common shares at $80.01 per share and having a remaining contractual life of 5.25 and 6.25 years, respectively. During 2011, 1,286 stock options expired. The grant date fair value of all options was $39.90 per share. No new options were granted and no existing options were forfeited or exercised during 2011.

Vested Stock. From time to time, the Company issues common shares to non-employee directors electing to receive common shares in lieu of all or a portion of their annual retainer fees. The fair value of these common shares is based on the fair value of the shares at the date of issuance and is immediately recognized in earnings as a period expense. During 2011, 2010 and 2009, the Company recorded $0.2, $0.2 and $0.1, respectively, relating to common shares granted to non-employee directors in lieu of all or a portion of their annual retainer fees.

Under the Equity Incentive Plan, participants may elect to have the Company withhold common shares to satisfy minimum statutory tax withholding obligations arising in connection with the exercise of stock options and vesting of non-vested shares, restricted stock units and performance shares. Any such shares withheld are canceled by the Company on the applicable vesting dates, which correspond to the times at which income to the employee is recognized. When the Company withholds these common shares, the Company is required to remit to the appropriate taxing authorities the fair value of the shares withheld as of the vesting date. During 2011 and 2010, 62,637 and 11,729 commons shares, respectively, were withheld and canceled for this purpose. No such shares were withheld and canceled in 2009.

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Derivative Financial Instruments and Related Hedging Programs, Realized and Unrealized Gains and Losses Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Realized And Unrealized Gains and Losses
Total realized gains (losses)	$ 4.4	$ (1.9)	$ (52.6)
Total unrealized (losses) gains	(25.9)	(5.6)	80.5
Aluminum
Realized And Unrealized Gains and Losses
Total realized gains (losses)	9.6	(0.6)	(29.2)
Total unrealized (losses) gains	(26.5)	3.6	61.2
Natural Gas
Realized And Unrealized Gains and Losses
Total realized gains (losses)	(5.2)	(1.3)	(10.0)
Total unrealized (losses) gains	(1.6)	(4.4)	3.7
Foreign Currency
Realized And Unrealized Gains and Losses
Total realized gains (losses)	0	0	(13.4)
Total unrealized (losses) gains	0	0.1	15.6
Electricity
Realized And Unrealized Gains and Losses
Total unrealized (losses) gains	(1.8)	0	0
Call Options | Hedges Relating to the Notes
Realized And Unrealized Gains and Losses
Total unrealized (losses) gains	(2.1)	17.0	0
Bifurcated Conversion Feature | Hedges Relating to the Notes
Realized And Unrealized Gains and Losses
Total unrealized (losses) gains	$ 6.1	$ (21.9)	$ 0

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Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Goodwill. A roll-forward of goodwill is as follows (see Note 5 for additional information about the Company's business acquisitions):

Balance as of December 31, 2009	$	—
Goodwill arising from Nichols acquisition	3.1
Balance as of December 31, 2010	$	3.1
Goodwill arising from Alexco acquisition	34.1
Balance as of December 31, 2011	$	37.2

All of the Company's goodwill is included in the Fabricated Products segment.

Intangible Assets. Identifiable intangible assets at December 31, 2011 and December 31, 2010 are comprised of the following:

December 31, 2011:

	Weighted average Estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	25	$	38.5	$	(1.7	)	$	36.8
Backlog	2	0.8		(0.7		)	0.1
Trademark and trade name	3	0.4		(0.1		)	0.3
Total	24	$	39.7	$	(2.5	)	$	37.2

December 31, 2010:

	Weighted average Estimated useful life	Original cost		Accumulated amortization			Net book value
Customer relationships	20	$	3.8	$	(0.1	)	$	3.7
Backlog	3	0.5		(0.2		)	0.3
Total	18	$	4.3	$	(0.3	)	$	4.0

The Company acquired $35.4 of intangible assets through the acquisition of Alexco in 2011 (see Note 5). Amortization expense relating to definite-lived intangible assets is recorded in the Fabricated Products segment. Such expense was $2.2 and $0.3 for 2011 and 2010, respectively. The expected amortization of intangible assets for the next five calendar years is as follows:

2012	$	1.8
2013	1.7
2014	1.6
2015	1.6
2016	1.6
Thereafter	28.9
Total	$	37.2

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Secured Debt and Credit Facilities, Revolving Credit Facility (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 Minimum	Dec. 31, 2011 Line of Credit	Dec. 31, 2011 Letter of Credit	Sep. 30, 2011 Additional line of credit capacity allowed	Dec. 31, 2011 Amended and Current Revolving Credit Facility	Sep. 30, 2011 Amended and Current Revolving Credit Facility	Sep. 30, 2011 Then Existing Revolving Credit Facility
Line of Credit Facility
Maximum Borrowing Capacity				$ 60,000,000	$ 350,000,000	$ 300,000,000	$ 300,000,000	$ 200,000,000
Percentage of eligible accounts receivable for borrowing base			85.00%
Percentage of eligible inventory for borrowing base			65.00%
Percentage of net orderly liquidation value of eligible inventory			85.00%
Percent of eligible machinery and equipment for borrowing base			85.00%
Available borrowing capacity	260,500,000	30,000,000
Remaining available borrowing capacity	251,600,000
Outstanding Line of Credit			$ 0	$ 8,900,000
Interest On Line Of Credit	4.00%
Fixed charge coverage ratio to be maintained on a consolidated basis	1.1:1.0

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Secured Debt and Credit Facilities

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Secured Debt and Credit Facilities

Secured Debt and Credit Facilities

Secured credit facility and other long-term secured debt consisted of the following:

	December 31, 2011			December 31, 2010
Revolving credit facility	$	—		$	—
Other	4.7			13.1
Total	4.7			13.1
Less — Current portion	(1.3		)	(1.3		)
Long-term secured debt	$	3.4		$	11.8

Revolving Credit Facility. On September 30, 2011, the Company and certain of its subsidiaries amended and extended its credit agreement with JPMorgan Chase Bank, N.A., as administrative agent, and the other financial institutions party thereto (the “Revolving Credit Facility”), with the commitment under the facility being increased from $200.0 to $300.0 and the term being extended from March 23, 2014 to September 30, 2016. The Revolving Credit Facility is secured by a first priority lien on substantially all of the accounts receivable, inventory and certain other related assets and proceeds of the Company and its domestic operating subsidiaries as well as certain machinery and equipment. Under the Revolving Credit Facility, the Company is able to borrow from time to time an aggregate commitment amount equal to the lesser of $300.0 and a borrowing base comprised of (i) 85% of eligible accounts receivable, (ii) the lesser of (a) 65% of eligible inventory and (b) 85% of the net orderly liquidation value of eligible inventory as determined in the most recent inventory appraisal ordered by the administrative agent and (iii) 85% of certain eligible machinery and equipment, reduced by certain reserves, all as specified in the Revolving Credit Facility. Up to a maximum of $60.0 of availability under the Revolving Credit Facility may be utilized for letters of credit.

Borrowings under the Revolving Credit Facility bear interest at a rate equal to either a base prime rate or LIBOR, at the Company's option, plus, in each case, a specified variable percentage determined by reference to the then-remaining borrowing availability under the Revolving Credit Facility. The Revolving Credit Facility may, subject to certain conditions and the agreement of any increasing lenders and/or any additional lenders thereunder, be increased up to $350.0.

The Company had $260.5 of borrowing availability under the Revolving Credit Facility at December 31, 2011, based on the borrowing base determination then in effect. At December 31, 2011, there were no borrowings under the Revolving Credit Facility, and $8.9 was being used to support outstanding letters of credit, leaving $251.6 of net borrowing availability. The interest rate applicable to any overnight borrowings under the Revolving Credit Facility would have been 4.0% at December 31, 2011.

Amounts owed under the Revolving Credit Facility may be accelerated upon the occurrence of various events of default including, without limitation, the failure to make principal or interest payments when due and breaches of covenants, representations and warranties set forth therein. The Revolving Credit Facility places limitations on the ability of the Company and certain of its subsidiaries to, among other things, grant liens, engage in mergers, sell assets, incur debt, make investments, undertake transactions with affiliates, pay dividends and repurchase shares. In addition, the Company is required to maintain a fixed charge coverage ratio on a consolidated basis at or above 1.1:1.0 if borrowing availability under the Revolving Credit Facility is less than $30.0. At December 31, 2011, the Company was in compliance with all covenants contained in the Revolving Credit Facility.

Other Notes Payable. In connection with the Company's acquisition of the Florence, Alabama facility (see Note 5), a promissory note in the amount of $6.7 (the “Nichols Promissory Note”) was issued to Nichols as a part of the consideration paid. The Nichols Promissory Note bears interest at a rate of 7.5% per annum. Accrued but unpaid interest is due quarterly through maturity of the Nichols Promissory Note on August 9, 2015, and principal payments are due in equal quarterly installments. The Company has the option to repay all or a portion of the Nichols Promissory Note at any time prior to the maturity date. The Nichols Promissory Note is secured by certain real property and equipment included in the assets acquired from Nichols. At December 31, 2011, the outstanding principal balance under the Nichols Promissory Note was $4.7, of which $1.3 was payable within 12 months.

On September 30, 2011, the Company fully prepaid the $7.0 outstanding principal balance of a promissory note issued in connection with the Company's December 2008 purchase of the land and buildings of its Los Angeles, California facility (the "Los Angeles Promissory Note"). Prior to the time of such purchase, the facility was operated under a long term lease.

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Acquisitions

12 Months Ended

Dec. 31, 2011

Business Combinations [Abstract]

Acquisitions

Acquisition

Alexco. Effective January 1, 2011, the Company completed the acquisition of substantially all of the assets of Alexco, a manufacturer of hard alloy extrusions for the aerospace industry, based in Chandler, Arizona.

The Company paid net cash consideration of $83.2, with existing cash on hand, and assumed certain liabilities totaling approximately $1.0. Total acquisition related costs were $0.5, of which $0.4 was expensed in 2010 and $0.1 was expensed in 2011. Such expenses are included within Selling, administrative, research and development, and general expenses.

The following table summarizes recognized amounts of identifiable assets acquired and liabilities assumed at the effective date of the acquisition:

Allocation of purchase price:
Cash	$	4.9
Accounts receivable, net	3.6
Inventory	6.6
Property, plant and equipment	4.5
Definite-lived intangible assets:
Customer relationships	34.7
Backlog	0.3
Trademark and trade name	0.4
Goodwill	34.1
Accounts payable and other current liabilities	(1.0		)
Cash consideration paid	$	88.1

Goodwill arising from this transaction reflects (i) the expected synergistic benefits to the Company, as the products manufactured by the acquired operation are expected to complement the Company's other offerings of sheet, plate, cold finish and drawn tube products for aerospace applications and (ii) the calculation of the fair value of the other assets acquired and liabilities assumed in this transaction. Goodwill arising from this transaction is anticipated to be deductible for tax purposes over the next 15 years.

The following unaudited pro forma financial information for the Company summarizes the results of operations for the periods indicated as if the Alexco acquisition had been completed as of January 1, 2010. This pro forma financial information considers principally (i) the Company's audited financial results, (ii) the unaudited historical financial results of Alexco, as supplied to the Company, and (iii) select pro forma adjustments to the historical financial results of Alexco. Such pro forma adjustments represent principally estimates of (i) the impact of the hypothetical amortization of acquired intangible assets and the recognition of fair value adjustments relating to tangible assets in pre-tax income in each period and (ii) the pro forma impact of the transaction on the Company's tax provision in each period. These pro forma adjustments did not have a material impact on the pro forma Net income, as presented below. The following pro forma data does not purport to be indicative of the results of future operations or of the results that would have actually occurred had the acquisition taken place at the beginning of 2010:

	Year Ended
	December 31,
	2011 1		2010
Net sales (combined)	$	1,301.3	$	1,110.7
Net income (combined)	$	25.1	$	16.9
Basic earnings per share (combined)	$	1.32	$	0.87
Diluted earnings per share (combined)	$	1.32	$	0.87

____________

¹  The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

The following information presents select financial data relating to the Chandler, Arizona (Extrusion) facility, as included within the Company's consolidated operating results for the year ended December 31, 2011.

	Year Ended
	December 31, 2011
Net sales	$	42.8
Net income before income taxes	$	10.5

Nichols. On August 9, 2010, the Company acquired the Florence, Alabama facility, which manufactures bare mechanical alloy wire products, nails and aluminum rod for aerospace, general engineering, and automotive applications.

Consideration consisted of (i) $9.0 in cash, (ii) the $6.7 Nichols Promissory Note from the Company to Nichols (see Note 4), and (iii) the assumption of certain liabilities totaling approximately $2.1. Total acquisition-related costs were approximately $0.8, all of which were expensed through December 31, 2010 and included in Selling, administrative, research and development, and general in the Statements of Consolidated Income. The acquisition did not have a material impact on the Company's consolidated financial statements.

The following table summarizes recognized amounts of identifiable assets acquired and liabilities assumed at the acquisition date:

Allocation of purchase price:
Inventory	$	3.9
Other current assets	2.3
Property, plant and equipment	4.2
Definite lived intangible assets	4.3
Goodwill	3.1
Accounts payable and other current liabilities	(2.1		)
Consideration paid	$	15.7

The goodwill arising from the acquisition represents the commercial opportunity for the Company to sell small-diameter rod, bar and wire products, as a complement to its other products, to its core end market segments for aerospace, general engineering and automotive applications and is expected to be deductible for income tax purposes over the next 15 years.

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Income Tax Matters

12 Months Ended

Dec. 31, 2011

Income Tax Disclosure [Abstract]

Income Tax Matters

Income Tax Matters

Tax provision. Income before income taxes by geographic area is as follows:

	Year Ended December 31,
	2011		2010		2009
Domestic	$	37.9	$	23.0	$	117.8
Foreign	3.4		2.1		0.8
Total	$	41.3	$	25.1	$	118.6

Income taxes are classified as either domestic or foreign, based on whether payment is made or due to the United States or a foreign country. Certain income classified as foreign is also subject to domestic income taxes.

The (provision) benefit for income taxes consists of:

	Federal			Foreign			State			Total
2011
Current	$	1.4		$	0.3		$	0.1		$	1.8
Deferred	(2.3		)	(0.5		)	0.7			(2.1		)
Provision applied to increase Additional capital/ Other comprehensive income	(13.5		)	(0.4		)	(2.0		)	(15.9		)
Total	$	(14.4	)	$	(0.6	)	$	(1.2	)	$	(16.2	)
2010
Current	$	—		$	0.1		$	(0.5	)	$	(0.4	)
Deferred	(34.4		)	0.2			(10.2		)	(44.4		)
Benefit applied to decrease Additional capital/ Other comprehensive income	27.9			0.4			3.4			31.7
Total	$	(6.5	)	$	0.7		$	(7.3	)	$	(13.1	)
2009
Current	$	0.7		$	(3.6	)	$	(1.1	)	$	(4.0	)
Deferred	(59.3		)	0.3			(2.1		)	(61.1		)
Benefit applied to decrease Additional capital/ Other comprehensive income	12.7			2.7			1.6			17.0
Total	$	(45.9	)	$	(0.6	)	$	(1.6	)	$	(48.1	)

A reconciliation between the provision for income taxes and the amount computed by applying the federal statutory income tax rate to income before income taxes is as follows:

	Year Ended December 31,
	2011			2010			2009
Amount of federal income tax provision based on the statutory rate	$	(14.5	)	$	(8.8	)	$	(41.5	)
(Increase) decrease in federal valuation allowances	—			(0.2		)	0.5
Non-deductible compensation expense	(1.1		)	(0.6		)	(4.7		)
Non-deductible expense	(0.4		)	(0.3		)	(0.5		)
State income taxes, net of federal benefit 1	(0.8		)	(4.7		)	(1.0		)
Foreign income tax benefit	0.6			1.5			—
Other	—			—			(0.9		)
Income tax provision	$	(16.2	)	$	(13.1	)	$	(48.1	)

___________________________

¹  State income taxes of $4.7 in 2010 primarily consists of (i) a $1.9 increase in the valuation allowance relating to certain unused state net operating losses expected to expire and (ii) a $2.3 increase in the income tax provision from a reduction in the state deferred tax asset relating to a decrease in state net operating losses resulting from lower state apportionment factors in various states.

The table above reflects a full statutory U.S. tax provision despite the fact that the Company is only paying alternative minimum tax (“AMT”) in the U.S. and some state income taxes. See “Tax Attributes” below.

Deferred Income Taxes. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and amounts used for income tax purposes. The components of the Company’s net deferred income tax assets are as follows:

	Year Ended December 31,
	2011			2010
Deferred income tax assets:
Loss and credit carryforwards	$	375.6		$	379.6
VEBAs	—			0.8
Other assets	39.6			25.9
Inventories and other	8.3			27.3
Valuation allowances	(18.8		)	(20.1		)
Total deferred income tax assets — net	404.7			413.5
Deferred income tax liabilities:
Property, plant, and equipment	(67.2		)	(61.9		)
VEBAs	(47.6		)	(59.5		)
Total deferred income tax liabilities	(114.8		)	(121.4		)
Net deferred income tax assets 1,2	$	289.9		$	292.1

__________________________

¹  Of the total net deferred income tax assets of $289.9, $63.0 was included in Prepaid expenses and other current assets and $226.9 was presented as Deferred tax assets, net on the Consolidated Balance Sheet as of December 31, 2011.

²  Of the total net deferred income tax assets of $292.1, $46.8 was included in Prepaid expenses and other current assets and $245.3 was presented as Deferred tax assets, net on the Consolidated Balance Sheet as of December 31, 2010.

Tax Attributes. At December 31, 2011, the Company had $875.1 of net operating loss (“NOL”) carryforwards available to reduce future cash payments for income taxes in the United States. Of the $875.1 of NOL carryforwards at December 31, 2011, $1.7 represents excess tax benefits related to the vesting of employee restricted stock which will result in an increase in equity if and when such excess tax benefits are ultimately realized. The NOL carryforwards expire periodically through 2030. The Company also had $29.8 of AMT credit carryforwards with an indefinite life, available to offset regular federal income tax requirements.

To preserve the NOL carryforwards available to the Company, (i) the Company’s certificate of incorporation includes certain restrictions on the transfer of the Company’s common stock and (ii) the Company entered into a stock transfer restriction agreement with the Union VEBA.

In assessing the realizability of deferred tax assets, management considers whether it is “more likely than not” that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers taxable income in carryback years, the scheduled reversal of deferred tax liabilities, tax planning strategies and projected future taxable income in making this assessment. Due to uncertainties surrounding the realization of some of the Company’s deferred tax assets, primarily including state NOLs sustained during the prior years and expiring tax benefits, the Company had a valuation allowance against its deferred tax assets. When recognized, the tax benefits relating to any reversal of this valuation allowance will be recorded as a reduction of income tax expense. The (decrease) increase in the valuation allowance was $(1.3), $2.1 and $(11.5) in 2011, 2010 and 2009, respectively. The decrease in the valuation allowance for 2011 was primarily due to the projected utilization of state NOLs. The increase in the valuation allowance in 2010 was primarily due to the expiration of projected state NOLs as a result of lower state apportionment in various state jurisdictions, of which $0.8 reversed in the first quarter of 2011 due to a change in tax law in the State of Illinois. The decrease in the valuation in 2009 was primarily due to a change in the State of Ohio's tax regime. Ohio phased out its corporate income tax and changed to a gross receipts tax, as a result, the deferred tax asset and the related valuation allowance, relating to Ohio NOLs, were reversed in 2009.

Other. The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. The Canada Revenue Agency audited the Company’s tax returns for fiscal years 1998 through 2001 and issued assessment notices for which Notices of Objection have been filed. In addition, the Canada Revenue Agency has audited the Company’s tax returns for fiscal years 2002 through 2004 and issued assessment notices, resulting in a payment of $7.9 to the Canada Revenue Agency against previously accrued tax reserves in 2009. During the fourth quarter of 2011, an additional $1.3 of Canadian Provincial income tax assessment, including interest, was paid resulting from the audit of the Company’s tax returns for fiscal years 2002 through 2004. The Company’s tax returns for certain past years are still subject to examination by taxing authorities, and the use of NOL carryforwards in future periods could trigger a review of attributes and other tax matters in years that are not otherwise subject to examination.

No U.S. federal or state liability has been recorded for the undistributed earnings of the Company’s Canadian subsidiary at December 31, 2011. These undistributed earnings are considered to be indefinitely reinvested. Accordingly, no provision for U.S. federal and state income taxes or foreign withholding taxes has been provided on such undistributed earnings. Determination of the potential amount of unrecognized deferred U.S. income tax liability and foreign withholding taxes is not practicable because of the complexities associated with its hypothetical calculation.

The Company has gross unrecognized benefits relating to uncertain tax positions. If and when the gross unrecognized tax benefits are ultimately recognized, it will be reflected in the Company’s income tax provision and affect the effective tax rate in future periods.

A reconciliation of changes in the gross unrecognized tax benefits is as follows:

	Year Ended December 31,
	2011			2010			2009
Gross unrecognized tax benefits at beginning of period	$	15.0		$	15.6		$	15.8
Gross increases for tax positions of prior years	0.1			—			1.6
Gross decreases for tax positions of prior years	—			—			(1.6		)
Gross increases for tax positions of current years	0.4			0.4			0.4
Settlements	(0.5		)	—			(2.8		)
Gross decrease for tax positions relating to lapse of a statute of limitation	(0.9		)	(1.7		)	—
Foreign currency translation	(0.4		)	0.7			2.2
Gross unrecognized tax benefits at end of period	$	13.7		$	15.0		$	15.6

The change during 2011 was primarily due to a partial release of an unrecognized tax benefit as a result of the expiration of a statute, settlements with taxing authorities, foreign currency fluctuations and change in tax positions. The change during 2010 was primarily due to a partial release of an unrecognized tax benefit as a result of the expiration of a statute, foreign currency fluctuations and change in tax positions. The change during 2009 was primarily due to settlements with taxing authorities, foreign currency fluctuations and change in tax positions.

In addition, the Company recognizes interest and penalties related to above unrecognized tax benefits in the income tax provision. The Company had $6.6 accrued at both December 31, 2011 and December 31, 2010, for interest and penalties. Of these amounts, $0 and $0.4 were recorded as current liabilities and were included in Other accrued liabilities on the Consolidated Balance Sheets at December 31, 2011 and December 31, 2010, respectively. The Company recognized an increase (decrease) in interest and penalty of $0, $0.4 and $(3.2) in its tax provision in 2011, 2010 and 2009, respectively.

In connection with the gross unrecognized tax benefits (including interest and penalties) denominated in foreign currency, the Company incurred a foreign currency translation adjustment. During 2011, 2010 and 2009, the foreign currency impact on such liabilities resulted in $0.3, $(0.6) and $(2.7) currency translation adjustments, respectively, which were recorded within Other comprehensive income.

The Company does not expect its gross unrecognized tax benefits to materially change within the next 12 months.

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Acquisitions, Alexco Pro Forma Table (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Business Acquisition [Line Items]
Net sales (combined)	$ 317.6	$ 322.3	$ 338.8	$ 322.6	$ 265.8	$ 263.4	$ 282.4	$ 267.5	$ 1,301.3	[1]	$ 1,079.1	$ 987.0
Net income	6.1	4.1	4.1	10.8	(0.9)	5.0	(0.4)	8.3	25.1	[1]	12.0	70.5
Basic earnings per share (combined)	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61	$ 3.51
Diluted earnings per share (combined)	$ 0.33	$ 0.21	$ 0.22	$ 0.57	$ (0.05)	$ 0.26	$ (0.02)	$ 0.41	$ 1.32	[1]	$ 0.61	$ 3.51
Alexco
Pro-forma of Net income
Net sales (combined)											1,110.7
Net income (combined)											16.9
Basic earnings per share (combined)											$ 0.87
Diluted earnings per share (combined)											$ 0.87
Net sales									42.8
Net income before income taxes									$ 10.5

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

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Fair Value Measurements, Call Option FV Assumption Table (Details) (USD $)	Dec. 31, 2011 basispoints years
Fair Value Disclosures [Abstract]
Stock price at December 31, 2011	$ 45.88	[1]
Quarterly dividend yield (per share)	$ 0.24	[2]
Risk-free interest rate	0.42%	[3]
Credit spread (basis points)	569	[4]
Expected volatility rate	42.00%	[5]
Constant Maturity Treasury Rate Specified Year One	5
Constant Maturity Treasury Rate Specified Year Two	3

[1] The Company's stock price has the most material impact to the fair values of the Call Options and the Notes, which drives the fair value of the Bifurcated Conversion Feature.

[2] The Company used a discrete quarterly dividend payment of $0.24 per share based on historical and expected future quarterly dividend payments as of December 31, 2011.

[3] The risk-free rate was based on the five-year and three-year Constant Maturity Treasury rate on December 31, 2011, compounded semi-annually.

[4] The Company's credit rating was estimated to be between BB and B+ based on comparisons of its financial ratios and size to those of other rated companies. Using the Merrill Lynch High Yield index, the Company identified credit spreads for other debt issuances with similar credit ratings and used the median of such credit spreads.

[5] The volatility rate was based on both observed volatility, which is based on the Company's historical stock price, and implied volatility from the Company's traded options. Such volatility was further adjusted to take into consideration market participant risk tolerance.

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Goodwill and Intangible Assets, Goodwill Rollforward Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Goodwill roll forward
Goodwill Ending Balance	$ 37.2	$ 3.1
Fabricated Products
Goodwill roll forward
Goodwill Beginning Balance	3.1	0
Goodwill arising from acquisitions	34.1	3.1
Goodwill Ending Balance	$ 37.2	$ 3.1

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Acquisitions, Nichols Purchase Price Allocation Table (Details) (USD $) In Millions, unless otherwise specified	Jan. 03, 2011 Alexco	Aug. 09, 2010 Nichols
Allocation of purchase price:
Inventory	$ 6.6	$ 3.9
Other current assets		2.3
Property, plant and equipment	4.5	4.2
Definite-lived intangible assets		4.3
Goodwill	34.1	3.1
Accounts payable and other current liabilities	(1.0)	(2.1)
Total consideration paid		$ 15.7

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Segment and Geographical Area Information, Information by Geographical Area (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Information By Geographical Area Line Items
Total net sales	$ 317.6	$ 322.3	$ 338.8	$ 322.6	$ 265.8	$ 263.4	$ 282.4	$ 267.5	$ 1,301.3	[1]	$ 1,079.1		$ 987.0
Income Taxes Paid									3.5		0.8		12.8
Fabricated Products
Information By Geographical Area Line Items
Total net sales									1,301.3		1,078.8		897.1
Fabricated Products | United States
Information By Geographical Area Line Items
Total net sales									1,195.1		991.2		840.1
Income Taxes Paid									1.7		0.1		4.0
Fabricated Products | Canada
Information By Geographical Area Line Items
Total net sales									106.2		87.6		57.0
Income Taxes Paid									1.8		0.7		8.8
All Other
Information By Geographical Area Line Items
Total net sales									0	[2]	0.3	[2]	89.9	[2]
All Other | United Kingdom
Information By Geographical Area Line Items
Total net sales									$ 0		$ 0.3		$ 89.9

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

[2] Net sales in All Other in 2010 represent residual activity involving primary aluminum purchased by the Company from Anglesey while it continued its smelting operations, prior to September 30, 2009, and resold by the Company in the first quarter of 2010. In connection with Anglesey’s remelt operations beginning in the fourth quarter of 2009, the Company changed its basis of revenue recognition from gross to a net basis (see Note 1).

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Cash Convertible Senior Notes and Related Transactions (Tables)

12 Months Ended

Dec. 31, 2011

Cash Convertible Senior Notes and Related Transactions [Abstract]

Principal amount, carrying amount, and interest expense of the notes

The following tables provide additional information regarding the Notes:

	December 31, 2011			December 31, 2010
Principal amount	$	175.0		$	175.0
Less: unamortized issuance discount	$	(27.0	)	(33.6		)
Carrying amount, net of discount	$	148.0		$	141.4

	Year Ended
	December 31,
	2011		2010
Contractual coupon interest	$	8.4	$	6.0
Amortization of discount and deferred financing costs	7.8		5.3
Total interest expense1	$	16.2	$	11.3

____________

¹  A portion of the interest relating to the Notes is capitalized as Construction in progress.

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Restatement of Previously Issued Financial Statements (Tables)

12 Months Ended

Dec. 31, 2011

Accounting Changes and Error Corrections [Abstract]

Schedule of Error Corrections and Prior Period Adjustments

	December 31, 2010
	Previously Reported			Adjustment			Restated
Consolidated Balance Sheets:
Net asset in respect of VEBA(s)	$	195.7		$	(37.7	)	$	158.0
Deferred tax assets — net	231.1			14.2			245.3
Total assets	1,342.4			(23.5		)	1,318.9
Retained earnings	80.1			(2.1		)	78.0
Accumulated other comprehensive income (loss)	1.7			(21.4		)	(19.7		)
Total stockholders’ equity	912.2			(23.5		)	888.7
Total liabilities and equity	1,342.4			(23.5		)	1,318.9
	Year ended December 31, 2010
	Previously Reported			Adjustment			Restated
Statements of Consolidated Income:
Selling, administrative, research and development, and general	$	64.4		$	3.3		$	67.7
Total costs and expenses	1,034.7			3.3			1,038.0
Operating income	44.4			(3.3		)	41.1
Income before income taxes	28.4			(3.3		)	25.1
Income tax provision	(14.3		)	1.2			(13.1		)
Net income	14.1			(2.1		)	12.0
Earnings per common share, Basic:
Net income per share	$	0.72		$	(0.11	)	$	0.61
Earnings per common share, Diluted:
Net income per share	$	0.72		$	(0.11	)	$	0.61
Statements of Consolidated Comprehensive (Loss) Income:1
Net income	$	14.1		$	(2.1	)	$	12.0
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial gain arising during the period	11.4			14.1			25.5
Tax impact on net actuarial gain	(4.4		)	(5.3		)	(9.7		)
Reclassification adjustments:
Less: amortization of net actuarial loss	(0.4		)	1.1			0.7
Less: tax impact on amortization of net actuarial loss	0.2			(0.4		)	(0.2		)
Less: amortization of prior service cost	4.2			—			4.2
Less: tax impact on amortization of prior service cost	(1.6		)	—			(1.6		)

Comprehensive income	23.1			7.4			30.5
Statements of Consolidated Stockholders' Equity:1
Net income	$	14.1		$	(2.1	)	$	12.0
Retained earnings	80.1			(2.1		)	78.0
Accumulated other comprehensive income (loss)	1.7			(21.4		)	(19.7		)
Total stockholders' equity	912.2			(23.5		)	888.7
Statements of Consolidated Cash Flows:
Net income	$	14.1		$	(2.1	)	$	12.0
Deferred income taxes	14.5			(1.2		)	13.3
Non-cash net periodic benefit cost2	—			5.1			5.1
Other non-cash changes in assets and liabilities2	1.0			(1.7		)	(0.7		)
	Year ended December 31, 2009
	Previously Reported			Adjustment			Restated
Statements of Consolidated Comprehensive (Loss) Income:1
Other comprehensive (loss) income:
Defined benefit pension plan and VEBAs
Net actuarial gain arising during the period	$	114.6		$	(48.3	)	$	66.3
Tax impact on net actuarial gain	(43.2		)	18.2			(25.0		)
Prior service cost arising during the period	(32.4		)	(1.4		)	(33.8		)
Tax impact on prior service cost	12.2			0.5			12.7
Comprehensive income	123.5			(30.9		)	92.6
Statements of Consolidated Stockholders' Equity:1
Accumulated other comprehensive loss	$	(7.3	)	$	(30.9	)	$	(38.2	)
Total stockholders' equity	901.2			(30.9		)	870.3

_______________________________

¹   Total comprehensive (loss) income and components of other comprehensive (loss) income were previously included in the Statement of Stockholders' Equity. In 2011, the Company presented the Statement of Comprehensive (Loss) Income as a separate statement in accordance with ASU 2011-05. As such, the Previously Reported amounts in the tables above reflect the changes in the presentation.

²  Non-cash net periodic benefit cost was included within Other non-cash changes in assets and liabilities in 2010. Such amount has been reclassified from Other non-cash changes in assets and liabilities to conform to current period presentation.

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Derivative Financial Instruments and Related Hedging Programs

12 Months Ended

Dec. 31, 2011

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments and Related Hedging Programs

Derivative Financial Instruments and Related Hedging Programs

Overview. In conducting its business, the Company, from time to time, enters into derivative transactions, including forward contracts and options, to limit its economic (i.e., cash) exposure resulting from (i) metal price risk related to its sale of fabricated aluminum products and the purchase of metal used as raw material for its fabrication operations, (ii) energy price risk relating to fluctuating prices of natural gas and electricity used in its production processes, and (iii) foreign currency requirements with respect to its foreign subsidiaries, investment and cash commitments for equipment purchases. Additionally, in connection with the issuance of the Notes, the Company purchased cash-settled Call Options relating to the Company’s common stock to limit its exposure to the cash conversion feature of the Notes (see Note 3). The Company may modify the terms of its derivative contracts based on operational needs or financing objectives. As the Company’s operational hedging activities are generally designed to lock in a specified price or range of prices, realized gains or losses on the derivative contracts utilized in the hedging activities generally offset at least a portion of any losses or gains, respectively, on the transactions being hedged at the time the transactions occur. However, due to mark-to-market accounting, during the term of the derivative contracts, significant unrealized, non-cash gains and losses may be recorded in the income statement.

Hedges of Operational Risks. The Company’s pricing of fabricated aluminum products is generally intended to lock in a conversion margin (representing the value added from the fabrication process(es)) and to pass metal price risk to its customers. However, in certain instances the Company enters into firm-price arrangements with its customers and incurs price risk on its anticipated aluminum purchases in respect of such customer orders. The Company uses third-party hedging instruments to limit exposure to metal price risks related to firm-price customer sales contracts. See Note 13 for additional information regarding the Company’s material derivative positions relating to hedges of operational risks, and their respective fair values.

During 2011, 2010 and 2009, total fabricated products shipments that contained fixed price terms were (in millions of pounds) 157.0, 97.0 and 162.7, respectively. At December 31, 2011, the Fabricated Products segment held contracts for the delivery of fabricated aluminum products that have the effect of creating price risk on anticipated purchases of aluminum for 2012 and 2013, totaling approximately (in millions of pounds) 103.1 and 0.4 , respectively.

A majority of the Company's derivative contracts relating to hedges of operational risks contain credit risk-related contingencies, which the Company tries to minimize or offset through the management of counterparty credit lines, the utilization of options as part of the hedging activities, or both. The Company regularly reviews the creditworthiness of its derivative counterparties and does not expect to incur a significant loss from the failure of any counterparties to perform under any agreements.

Hedges Relating to the Notes. As described in Note 3, the Company issued Notes in the aggregate principal amount of $175.0 on March 29, 2010. The conversion feature of the Notes can only be settled in cash and is required to be bifurcated from the Notes and treated as a separate derivative instrument. In order to offset the cash flow risk associated with the Bifurcated Conversion Feature, the Company purchased Call Options, which are accounted for as derivative instruments. The Company expects that the realized gain or loss from the Call Options will substantially offset the realized loss or gain of the Bifurcated Conversion Feature upon maturity of the Notes. However, because valuation assumptions for the Bifurcated Conversion Feature and the Call Option are not identical, over time the Company expects to record net unrealized gains and losses due to mark-to-market adjustments to the fair values of the two derivatives. See Note 13 for additional information regarding the fair values of the Bifurcated Conversion Feature and the Call Options.

The following table summarizes the Company's material derivative positions at December 31, 2011:

		Notional Amount of Contracts
Commodity	Maturity Period	(mmlbs)
Aluminum —
Fixed priced purchase contracts	1/12 through 11/13	103.5
Midwest premium swap contracts1	1/12 through 12/12	86.0

		Notional Amount of Contracts
Energy	Maturity Period	(mmbtu)
Natural gas —2
Call option purchase contracts	1/12 through 12/13	4,050,000
Put option sales contracts	1/12 through 12/13	4,050,000
Fixed priced purchase contracts	1/12 through 12/14	1,490,000

		Notional Amount of Contracts
Electricity	Maturity Period	(Mwh)
Fixed priced purchase contracts	1/12 through 12/12	219,600

		Notional Amount of Contracts
Hedges Relating to the Notes	Contract Period	(Common Shares)
Bifurcated Conversion Feature3	3/10 through 3/15	3,621,608
Call Options3	3/10 through 3/15	3,621,608

_________________________

¹  Regional premiums represent the premium over the London Metal Exchange price for primary aluminum which is incurred on the Company's purchases of primary aluminum.

²  As of December 31, 2011, the Company's exposure to fluctuations in natural gas prices had been substantially reduced for approximately 85%, 53% and 5% of the expected natural gas purchases for 2012, 2013 and 2014, respectively.

³  The Bifurcated Conversion Feature represents the cash conversion feature of the Notes. To hedge against the potential cash outflows associated with the Bifurcated Conversion Feature, the Company purchased cash-settled Call Options. The Call Options have an exercise price equal to the conversion price of the Notes, subject to anti-dilution adjustment provisions substantially similar to the Notes, which may cause the exercise price to decrease and the notional amount of shares relating thereto to increase. The Call Options will expire upon the maturity of the Notes. Although the fair value of the Call Options is derived from a notional number of shares of the Company's common stock, the Call Options may only be settled in cash.

  The Company reflects the fair value of its derivative contracts on a gross basis in the Consolidated Balance Sheets (see Note 2).

Realized and Unrealized Gains and Losses. Realized and unrealized gains (losses) associated with all derivative contracts consisted of the following, for each period presented:

	Year Ended December 31,
	2011			2010			2009
Realized gains (losses):
Aluminum	$	9.6		$	(0.6	)	$	(29.2	)
Natural Gas	(5.2		)	(1.3		)	(10.0		)
Foreign Currency	—			—			(13.4		)
Total realized gains (losses):	$	4.4		$	(1.9	)	$	(52.6	)
Unrealized (losses) gains:
Aluminum	$	(26.5	)	$	3.6		$	61.2
Natural Gas	(1.6		)	(4.4		)	3.7
Electricity	(1.8		)	—			—
Foreign Currency	—			0.1			15.6
Call Options	(2.1		)	17.0			—
Bifurcated Cash Conversion Feature	6.1			(21.9		)	—
Total unrealized (losses) gains	$	(25.9	)	$	(5.6	)	$	80.5

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Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2011

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

	Year Ended December 31,
	2011		2010		2009
Supplemental disclosure of cash flow information:
Interest paid	$	10.4	$	6.0	$	2.0
Income taxes paid	$	3.5	$	0.8	$	12.8
Supplemental disclosure of non-cash transactions:
Non-cash capital expenditures	$	1.8	$	1.7	$	5.3
Issuance of Nichols Promissory Note — Note 4	$	—	$	6.7	$	—
Capital leases acquired	$	0.3	$	—	$	—

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Other Income (Expense), Net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Other income (expense)
Interest income	$ 0.2		$ 0.3		$ 0.1
Unrealized gains (losses) on financial derivatives	4.0	[1]	(4.9)	[1]	0	[1]
All other, net	0.1		0.4		(0.2)
Other non-operating income (expense), net	$ 4.3		$ (4.2)		$ (0.1)

[1] See “Derivative Financial Instruments” in Note 1 for a discussion of accounting policy for such instruments.

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Other Income (Expense), Net (Tables)

12 Months Ended

Dec. 31, 2011

Other Income and Expenses [Abstract]

Other income (expense), net

	Year Ended December 31,
	2011		2010			2009
Interest income	$	0.2	$	0.3		$	0.1
Unrealized gains (losses) on financial derivatives 1	4.0		(4.9		)	—
All other, net	0.1		0.4			(0.2		)
Other non-operating income (expense), net	$	4.3	$	(4.2	)	$	(0.1	)

____________

¹  See “Derivative Financial Instruments” in Note 1 for a discussion of accounting policy for such instruments.

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Employee Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation expense relating to short term incentive plans

Total costs relating to STI Plans were recorded as follows, for each period presented:

	Year Ended December 31,
	2011		2010		2009
Cost of products sold	$	3.2	$	2.9	$	2.8
Selling, administrative, research and development and general	5.2		3.9		3.2
Total costs recorded in connection with STI Plans	$	8.4	$	6.8	$	6.0

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2011		2010		2009
Fabricated Products segment	$	5.9	$	4.8	$	4.7
All Other	2.5		2.0		1.3
Total costs recorded in connection with STI Plans	$	8.4	$	6.8	$	6.0

Non-cash compensation expense

Recorded costs by type of award under LTI programs were as follows, for each period presented:

	Year Ended December 31,
	2011		2010		2009
Service-based non-vested common shares and restricted stock units	$	4.1	$	3.6	$	7.9
Performance shares	1.1		0.8		0.9
Service-based stock options	—		0.1		0.3
Total non-cash compensation expense	$	5.2	$	4.5	$	9.1

The following table presents the allocation of the charges detailed above, by segment:

	Year Ended December 31,
	2011		2010		2009
Fabricated Products 1	$	1.5	$	1.4	$	3.5
All Other	3.7		3.1		5.6
Total non-cash compensation expense	$	5.2	$	4.5	$	9.1

_________

¹  Of the $3.5 compensation charge allocated to the Fabricated Products segment in 2009, $0.8 of the amount relates to the accelerated vesting of previously granted stock-based payments in connection with the Company's restructuring efforts in 2009 (see Note 16).

Unrecognized gross compensation cost data

The following table presents unrecognized gross compensation cost data, by type of award:

	December 31, 2011
	Unrecognized gross compensation costs, by award type		Expected period (in years) over which the remaining gross compensation costs will be recognized, by award type
Service-based non-vested common shares and restricted stock units	$	3.1	1.7
Performance shares	$	3.1	2.0

Fair value of non-vested common shares, restricted stock units, and performance shares

A summary of the activity with respect to non-vested common shares, restricted stock units and performance shares for the year ended December 31, 2011 is as follows:

	Non-Vested Common Shares				Restricted Stock Units				Performance Shares
	Shares		Weighted-Average Grant-Date Fair Value per Share		Units		Weighted-Average Grant-Date Fair Value per Unit		Shares		Weighted-Average Grant-Date Fair Value per Share
Outstanding at December 31, 2010	268,864		$	27.91	7,872		$	21.74	686,895		$	26.84
Granted	83,066		47.07		2,182		46.59		188,741		46.65
Vested	(146,205	)	36.84		(3,982	)	17.16		(13,462	)	62.83
Forfeited	(2,889	)	33.47		—		—		(15,441	)	26.24
Canceled	—		—		—		—		(68,799	)	74.34
Outstanding at December 31, 2011	202,836		$	29.24	6,072		$	33.67	777,934		$	26.84

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Statements of Consolidated Comprehensive (Loss) Income (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Net income	$ 6.1	$ 4.1	$ 4.1	$ 10.8	$ (0.9)	$ 5.0	$ (0.4)	$ 8.3	$ 25.1	[1]	$ 12.0	$ 70.5
Defined benefit pension plan and VEBAs
Net actuarial (loss) gain arising during the period									(110.6)		25.5	66.3
Prior service cost arising during the period									0		0	(33.8)
Reclassification adjustments:
Less: amortization of net actuarial loss									0.6		0.7	3.8
Less: amortization of prior service cost									4.2		4.2	1.6
Other comprehensive (loss) income relating to defined benefit pension plan and VEBAs									(105.8)		30.4	37.9
Unrealized (loss) gain on available for sale securities									(0.1)		0.1	0
Foreign currency translation adjustment									0.2		(0.5)	(1.5)
Other comprehensive (loss) income, before tax									(105.7)		30.0	36.4
Income tax benefit (expense) related to items of other comprehensive (loss) income									40.4		(11.5)	(14.3)
Other comprehensive (loss) income, net of tax									(65.3)		18.5	22.1
Comprehensive (loss) income									$ (40.2)		$ 30.5	$ 92.6

[1] The combined results presented for year ended December 31, 2011 are the actual results presented in the Statements of Consolidated Income, as the operating results for the Chandler, Arizona (Extrusion) facility were included in the Company's consolidated operating results commencing January 1, 2011 (see Note 1).

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Fair Value Measurements, Fair Value of Non financial Assets and Liabilities (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010		Dec. 31, 2009
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Idled assets	$ 5.4	$ 5.5
Idled assets subsequently placed into service	0.1
Asset Retirement Obligation, Roll Forward
Beginning balance	3.8	3.5		3.3
Liabilities incurred during the period	0	0		0
Liabilities settled during the period	(0.1)	0		0
Accretion expense	0.3	0.3		0.2
Adjustment to accretion expense due to revisions to estimated cash flow	0	(1.1)	[1]	0
Revisions to estimated cash flow	0	1.1		0
Ending balance	4.0	3.8		3.5
Increase in basic earnings per share resulting from adjustment		$ 0.05
Increase in diluted earnings per share resulting from adjustment		$ 0.05
Weighted average credit-adjusted risk free rate	9.10%	9.10%
Tulsa, Oklahoma Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Idled assets		1.1
Assets acquired but not yet placed into service
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Idled assets		$ 4.4

[1] The adjustment increased both basic and diluted earnings per share for 2010 by approximately $0.05 per share.

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2011

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Organization and Nature of Operations. Kaiser Aluminum Corporation (together with its subsidiaries, unless the context otherwise requires, the “Company”) specializes in the production of semi-fabricated specialty aluminum products, with its operations consisting of one reportable segment in the aluminum industry, Fabricated Products. The Company also owns a 49% non-controlling interest in Anglesey Aluminium Limited (“Anglesey”), which owns and operates a secondary aluminum remelt and casting facility in Holyhead, Wales. See Note 15 for additional information regarding the Company's reportable segment and its other business units.

Recent Acquisitions. In January 2011, the Company acquired the manufacturing facility and related assets of Alexco, L.L.C. (“Alexco”) in Chandler, Arizona (the “Chandler, Arizona (Extrusion) facility”). The Chandler, Arizona (Extrusion) facility manufactures hard alloy extrusions for the aerospace industry and is a well established supplier of aerospace extrusions. The acquisition positions the Company in a significant market segment that provides a natural complement to its product offerings for aerospace applications (see Note 5).

In August 2010, the Company acquired the manufacturing facility and related assets of Nichols Wire, Incorporated (“Nichols”) in Florence, Alabama (the “Florence, Alabama facility”). The Florence, Alabama facility manufactures bare mechanical alloy wire products, nails and aluminum rod and expands the Company's offerings of small diameter rod, bar and wire products to the Company's core end market segments for aerospace and high strength products, general engineering products and extrusions for automotive applications (see Note 5).

Principles of Consolidation and Basis of Presentation. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, and are prepared in accordance with United States generally accepted accounting principles (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”). Intercompany balances and transactions are eliminated. The consolidated financial statements include the results of manufacturing facilities acquired by the Company from the effective date of each acquisition.

The Company suspended the use of the equity method of accounting with respect to its ownership in Anglesey commencing in the quarter ended September 30, 2009. As a result, the Company did not record equity in income from Anglesey for any of the periods presented herein. The carrying amount of the Company's investment in Anglesey was zero at both December 31, 2011 and December 31, 2010. The Company does not anticipate resuming the use of the equity method of accounting with respect to its investment in Anglesey during the next 12 months.

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses during the reporting period. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of the Company’s consolidated financial statements; accordingly, it is possible that the actual results could differ from these estimates and assumptions, which could have a material effect on the reported amounts of the Company’s consolidated financial position and results of operations.

Recognition of Sales. Sales are generally recognized on a gross basis when title, ownership and risk of loss pass to the buyer and collectability is reasonably assured. A provision for estimated sales returns from, and allowances to, customers is made in the same period as the related revenues are recognized, based on historical experience or the specific identification of an event necessitating a reserve.

From time to time, in the ordinary course of business, the Company may enter into agreements with customers in which the Company, in return for a fee, agrees to reserve certain amounts of its existing production capacity for the customer, defer an existing customer purchase commitment into future periods and reserve certain amounts of its expected production capacity in those periods for the customer, or cancel or reduce existing commitments under existing contracts. These agreements may have terms or impact periods exceeding one year.

Certain of the capacity reservation and commitment deferral agreements provide for periodic, such as quarterly or annual, billing for the duration of the contract. For capacity reservation agreements, the Company recognizes revenue ratably over the period of the capacity reservation. Accordingly, the Company may recognize revenue prior to billing reservation fees. Unbilled receivables are included within Trade receivables on the Company's Consolidated Balance Sheets (see Note 2). For commitment deferral agreements, the Company recognizes revenue upon the earlier occurrence of the related sale of product or the end of the commitment period. In connection with other agreements, the Company may collect funds from customers in advance of the periods for which (i) the production capacity is reserved, (ii) commitments are deferred, (iii) commitments are reduced or (iv) performance is completed, in which event the recognition of revenue is deferred until the fee is earned. Any unearned fees are included within Other accrued liabilities or Long-term liabilities, as appropriate, on the Company's Consolidated Balance Sheets (see Note 2).

Stock-Based Compensation. Stock-based compensation in the form of service-based awards is provided to executive officers, certain employees and directors, and is accounted for at fair value. The Company measures the cost of services received in exchange for an award of equity instruments based on the grant-date fair value of the award and the number of awards expected to ultimately vest. The cost of an award is recognized as an expense over the requisite service period of the award on a straight-line basis. The Company has elected to amortize compensation expense for equity awards with graded vesting using the straight-line method (see Note 10).

The Company also grants performance-based awards to executive officers and other key employees. These awards are subject to performance requirements pertaining to the Company's economic value added (“EVA”) performance, measured over specified three-year performance periods. The EVA is a measure of the excess of the Company's adjusted pre-tax operating income for a particular year over a pre-determined percentage of the adjusted net assets of the immediately preceding year, as defined in the Company's annual long-term incentive (“LTI”) programs. The number of performance shares, if any, that will ultimately vest and result in the issuance of common shares depends on the average annual EVA achieved for the specified three-year performance periods. The fair value of performance-based awards is measured based on the most probable outcome of the performance condition, which is estimated quarterly using the Company's forecast and actual results. The Company expenses the fair value, after assuming an estimated forfeiture rate, over the specified three-year performance periods on a ratable basis (see Note 10).

Shipping and Handling Costs. Shipping and handling costs are recorded as a component of Cost of products sold excluding depreciation, amortization and other items.

Advertising Costs. Advertising costs, which are included in Selling, administrative, research and development, and general, are expensed as incurred. Advertising costs for 2011, 2010 and 2009 were $0.4, $0.3, and $0.4, respectively.

Research and Development Costs. Research and development costs, which are included in Selling, research and development, and general, are expensed as incurred. Research and development costs for 2011, 2010 and 2009 were $6.1, $4.9, and $4.4, respectively.

Major Maintenance Activities. All of the major maintenance costs are accounted for using the direct expensing method.

Cash and Cash Equivalents. The Company considers only those short-term, highly liquid investments with original maturities of 90 days or less when purchased to be cash equivalents. The Company’s cash equivalents consist primarily of funds in savings accounts, demand notes, money market accounts and other highly liquid investments, which are classified within Level 1 of the fair value hierarchy.

Restricted Cash. The Company is required to keep certain amounts on deposit relating to workers’ compensation and other agreements. The Company accounts for such deposits as restricted cash (see Note 2).

Trade Receivables and Allowance for Doubtful Accounts. Trade receivables primarily consist of amounts billed to customers for products sold. Accounts receivable are generally due within 30 days. For the majority of its receivables, the Company establishes an allowance for doubtful accounts based upon collection experience and other factors. On certain other receivables where the Company is aware of a specific customer’s inability or reluctance to pay, an allowance for doubtful accounts is established against amounts due, to reduce the net receivable balance to the amount the Company reasonably expects to collect. However, if circumstances change, the Company’s estimate of the recoverability of accounts receivable could be different. Circumstances that could affect the Company’s estimates include, but are not limited to, customer credit issues and general economic conditions. Accounts are written off once deemed to be uncollectible. Any subsequent cash collections relating to accounts that have been previously written off are typically recorded as a reduction to total bad debt expense in the period of payment.

Inventories. Inventories are stated at the lower of cost or market value. Finished products, work-in-process and raw material inventories are stated on the last-in, first-out (“LIFO”) basis. The Company recorded net non-cash LIFO inventory (benefits) charges of approximately $(7.1), $16.5 and $8.7 during 2011, 2010 and 2009, respectively. These amounts are primarily a result of changes in metal prices and changes in inventory volumes. The excesses of current cost over the stated LIFO value of inventory at December 31, 2011 and December 31, 2010 were $29.4 and $36.4, respectively. Other inventories, principally operating supplies and repair and maintenance parts, are stated at average cost. Inventory costs consist of material, labor and manufacturing overhead, including depreciation. Abnormal costs, such as idle facility expenses, freight, handling costs and spoilage, are accounted for as current period charges. All of the Company's inventories at December 31, 2011 and December 31, 2010 were included in the Fabricated Products segment (see Note 2 for the components of inventories).

Property, Plant, and Equipment - Net. Property, plant and equipment is recorded at cost (see Note 2). Construction in progress is included within Property, plant, and equipment - net in the Consolidated Balance Sheets. Interest related to the construction of qualifying assets is capitalized as part of the construction costs. The aggregate amount of interest capitalized is limited to the interest expense incurred in the period. The amount of interest expense capitalized as construction in progress was $1.3, $2.8 and $2.7 during 2011, 2010 and 2009, respectively.

Depreciation is computed using the straight-line method at rates based on the estimated useful lives of the various classes of assets. Capital lease assets and leasehold improvements are depreciated on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term. The principal estimated useful lives, are as follows:

	Range (in years)
Land improvements	3	-	25
Buildings and leasehold improvements	15	-	45
Machinery and equipment	1	-	24
Capital lease assets	3

Depreciation expense is not included in Cost of products sold, excluding depreciation, amortization and other items, but is included in Depreciation and amortization on the Statements of Consolidated Income. For 2011, 2010 and 2009, the Company recorded depreciation expense of $22.7, $19.4 and $16.2, respectively, relating to the Company's operating facilities in its Fabricated Products segment. An immaterial amount of depreciation expense was also recorded in the Company's Corporate and Other for all periods presented herein.

Property, plant and equipment are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset or group of assets may not be recoverable. The Company regularly assesses whether events and circumstances with the potential to trigger impairment have occurred and relies on a number of factors, including operating results, business plans, economic projections, and anticipated future cash flow, to make such assessments. The Company uses an estimate of the future undiscounted cash flows of the related asset or asset group over the estimated remaining life of such asset(s) in measuring whether the asset(s) are recoverable. Measurement of the amount of impairment, if any, is based on the difference between the carrying value of the asset(s) and the estimated fair value of such asset(s). Fair value is determined through a series of standard valuation techniques.

During 2010, the Company recorded a $2.0 impairment charge to write down the carrying amount of idled equipment to represent its estimated fair value and a $1.9 impairment charge in connection with the sale of its Greenwood, South Carolina facility. Such asset impairment charges are included in Other operating charges (benefits), net in the Statements of Consolidated Income and are included in the Fabricated Products segment. Further, the Company also recorded additional impairment charges relating to property, plant and equipment in connection with its restructuring plans (see Note 16).

Property, plant and equipment held for future development are presented as idled assets. Such assets are evaluated for impairment on a held-and-used basis. Depreciation expense is not adjusted when assets are temporarily idled. See “Fair Values of Non-financial Assets and Liabilities” in Note 13 for additional information regarding idled assets included in property, plant and equipment.

Available for Sale Securities. Included in Other assets are certain marketable debt and equity securities, classified as available for sale securities (see Note 2). Such securities are invested in various investment funds and managed by a third-party trust in connection with the Company's deferred compensation program (see Note 8). Such securities are recorded at fair value (see “Available for Sale Securities” in Note 13), with net unrealized gains and losses, net of income taxes, reflected in other comprehensive earnings as a component of Stockholders' equity.

Deferred Financing Costs. Costs incurred in connection with debt financing are deferred and amortized over the estimated term of the related borrowing. Such amortization is included in Interest expense and may be capitalized as part of construction in progress (see Note 2).

Goodwill and Intangible Assets. Goodwill is tested for impairment on an annual basis, as well as on an interim basis, as warranted, at the time of relevant events and changes in circumstances. Intangible assets with definite lives are initially recognized at fair value and subsequently amortized over the estimated useful lives to reflect the pattern in which the economic benefits of the intangible assets are consumed. In the event the pattern cannot be reliably determined, the Company uses a straight-line amortization method. Whenever events or changes in circumstances indicate that the carrying amount of the intangible assets may not be recoverable, the intangible assets are reviewed for impairment.

The Company's accounting policy was to perform its annual goodwill impairment test during the third quarter, with the most recent annual goodwill impairment test completed as of September 1, 2011. During the fourth quarter of 2011, the Company elected to change its accounting policy to begin performing the annual goodwill impairment test on December 1 in order to better align its impairment testing procedures with the completion of the Company's annual financial and strategic planning process, which includes the preparation of long-term cash flow projections. The Company believes this change in accounting principle is preferable because these long-term cash flow projections are a key component in its annual goodwill impairment test and the change allows for the use of more recent financial information. This change did not accelerate, delay, avoid or cause a goodwill impairment charge and does not result in adjustments to our consolidated financial statements when applied retrospectively. During 2011, the Company tested its goodwill for impairment as of September 1, 2011 and December 1, 2011, and concluded there was no impairment of the carrying value of goodwill. During 2010, the Company concluded there was no impairment of the carrying value of goodwill.

Conditional Asset Retirement Obligations (“CAROs”). The Company has CAROs at several of its fabricated products facilities. The vast majority of such CAROs consist of incremental costs that would be associated with the removal and disposal of asbestos (all of which is believed to be fully contained and encapsulated within walls, floors, roofs, ceilings or piping) at certain of the Company’s older facilities if such facilities were to undergo major renovation or be demolished. The Company, in accordance with Accounting Standards Codification ("ASC") Topic 410, Asset Retirement and Environmental Obligations, estimates incremental costs for special handling, removal and disposal costs of materials that may or will give rise to CAROs and then discounts the expected costs back to the current year using a credit-adjusted, risk-free rate. The Company recognizes liabilities and costs for CAROs even if it is unclear when or if CAROs will be triggered. When it is unclear when or if CAROs will be triggered, the Company uses probability weighting for possible timing scenarios to determine the probability-weighted amounts that should be recognized in the Company’s consolidated financial statements (see Note 13).

Self Insurance of Employee Health and Workers' Compensation Liabilities. The Company is primarily self-insured for group health insurance and workers' compensation benefits provided to employees. The Company purchases stop-loss insurance to protect against annual health insurance claims per individual and at an aggregate level. Self insurance liabilities are estimated for claims incurred-but-not-paid based on judgment, using the Company's historical claim data and information and analysis provided by actuarial and claim advisors, the Company's insurance carriers and other professionals. The Company accounts for accrued liability relating to workers' compensation claims on a discounted basis. The discount rates used in estimating the liabilities were 1.00% and 4.75% and the undiscounted workers' compensation liabilities were $24.3 and $20.6 at December 31, 2011 and December 31, 2010, respectively. The accrued liabilities for health insurance and workers' compensation is included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2).

Environmental Contingencies. With respect to environmental loss contingencies, the Company records a loss contingency whenever a contingency is probable and reasonably estimatable. Accruals for estimated losses from environmental remediation obligations are generally recognized at no later than the completion of the remedial feasibility study. Such accruals are adjusted as information develops or circumstances change. Costs of future expenditures for environmental remediation obligations are not discounted to their present value. Accruals for expected environmental costs are included in Other accrued liabilities or Long-term liabilities, as appropriate (see Note 2). Environmental expense relating to continuing operations is included in Cost of products sold, excluding depreciation, amortization and other items in the Statements of Consolidated Income. Environmental expense relating to non-operating locations is included in Selling, administrative, research and development, and general in the Statements of Consolidated Income.

Derivative Financial Instruments. Hedging transactions using derivative financial instruments are primarily designed to mitigate the Company's exposure to changes in prices for certain products sold and consumed by the Company and, to a lesser extent, to mitigate the Company's exposure to changes in foreign currency exchange rates. From time to time, the Company also enters into hedging arrangements in connection with financing transactions to mitigate financial risks.

The Company does not utilize derivative financial instruments for trading or other speculative purposes. The Company's derivative activities are initiated within guidelines established by management and approved by the Company's Board of Directors. Hedging transactions are executed centrally on behalf of all of the Company's business units to minimize transaction costs, monitor consolidated net exposures and allow for increased responsiveness to changes in market factors.

The Company recognizes all derivative instruments as assets or liabilities in its Consolidated Balance Sheets and measures these instruments at fair value by “marking-to-market” all of its hedging positions at each period's end (see Note 13). Because the Company does not meet the documentation requirements for hedge (deferral) accounting, unrealized and realized gains and losses associated with hedges of operational risks are reflected as a reduction or increase, respectively, in Cost of products sold, excluding depreciation, amortization and other items, and unrealized and realized gains and losses relating to hedges of financing transactions are reflected as a component of Other income (expense) (see Note 18). See Note 12 for additional information about realized and unrealized gains and losses relating to the Company's derivative financial instruments.

Fair Value Measurement. The Company applies the provisions of Accounting Standards Update (“ASU”) Topic 820, Fair Value Measurements and Disclosures (“ASC 820”), in measuring the fair value of its derivative contracts, plan assets invested by certain of the Company’s employee benefit plans and its cash convertible senior notes (see Note 13).

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 establishes a fair value hierarchy that distinguishes between (i) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (ii) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Level 1 — Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

• Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3 — Inputs that are both significant to the fair value measurement and unobservable.

Income Taxes. Deferred income taxes reflect the future tax effect of temporary differences between the carrying amount of assets and liabilities for financial and income tax reporting and are measured by applying statutory tax rates in effect for the year during which the differences are expected to reverse. In accordance with ASC Topic 740, Income Taxes, the Company uses a “more likely than not” threshold for recognition of tax attributes that are subject to uncertainties and measures any reserves in respect of such expected benefits based on their probability. Deferred tax assets are reduced by a valuation allowance to the extent it is more likely than not that the deferred tax assets will not be realized (see Note 7).

Earnings per Share. ASC Topic 260, Earnings Per Share (“ASC 260”), defines unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) as participating securities and requires inclusion of such securities in the computation of earnings per share pursuant to the two-class method. ASC 260 mandates the application of the foregoing principles to all financial statements issued for fiscal years beginning after December 2008 and requires retrospective application.

Basic earnings per share is computed by dividing distributed and undistributed earnings allocable to common shares by the weighted-average number of common shares outstanding during the applicable period. The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The shares owned by a voluntary employee’s beneficiary association (“VEBA”) for the benefit of certain union retirees, their surviving spouses and eligible dependents (the “Union VEBA”) that are subject to transfer restrictions, while treated in the Consolidated Balance Sheets as being similar to treasury stock (i.e., as a reduction in Stockholders’ equity), are included in the computation of basic weighted-average number of common shares outstanding because such shares were irrevocably issued and have full dividend and voting rights. Diluted earnings per share is calculated as the more dilutive result of computing earnings per share under: (i) the treasury stock method or (ii) the two-class method (see Note 14).

Concentration of Credit Risk. Financial arrangements which potentially subject the Company to concentrations of credit risk consist of metal, currency, electricity and natural gas derivative contracts, certain cash-settled call options that the Company purchased in March 2010 (the “Call Options”) (see Note 3), and arrangements related to the Company's cash equivalents. If the market value of the Company's net commodity and currency derivative positions with certain counterparties exceeds the applicable threshold, if any, the counterparty is required to post margin by transferring cash collateral in excess of the threshold to the Company. Conversely, if the market value of these net derivative positions falls below a specified threshold, the Company is required to post margin by transferring cash collateral below the threshold to certain counterparties. At both December 31, 2011 and December 31, 2010, the Company had no margin deposits with or from its counterparties.

The Company is exposed to credit loss in the event of nonperformance by counterparties on derivative contracts used in hedging activities as well as failure of counterparties to return cash collateral previously transferred to the counterparties. The counterparties to the Company's derivative contracts are major financial institutions, and the Company does not expect nonperformance by any of its counterparties.

The Company places its cash in bank deposits and money market funds with high credit quality financial institutions which invest primarily in commercial paper and time deposits of prime quality, short-term repurchase agreements, and U.S. government agency notes. The Company has not experienced losses on its temporary cash investments.

Leases. For leases that contain predetermined fixed escalations of the minimum rent, the Company recognizes the related rent expense on a straight-line basis from the date it takes possession of the property to the end of the initial lease term. The Company records any difference between the straight-line rent amounts and the amount payable under the lease as part of deferred rent, in Other accrued liabilities or Long-term liabilities, as appropriate. Deferred rent for all periods presented was not material.

Foreign Currency. One of the Company’s foreign subsidiaries uses the local currency as its functional currency; its assets and liabilities are translated at exchange rates in effect at the balance sheet date; and its statement of operations is translated at weighted-average monthly rates of exchange prevailing during the year. Resulting translation adjustments are recorded directly to a separate component of stockholders’ equity in accordance with ASC Topic 830, Foreign Currency Matters. Where the U.S. dollar is the functional currency of a foreign facility or subsidiary, re-measurement adjustments are recorded in Other income (expense). At both December 31, 2011 and December 31, 2010, the amount of translation adjustment relating to the foreign subsidiary using local currency as its functional currency was immaterial.

New Accounting Pronouncements. In December 2010, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2010-28, Intangibles - Goodwill and Other, When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts (“ASU 2010-28”). ASU 2010-28 amends Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts. For those reporting units, an entity is required to perform Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists. In determining whether it is more likely than not that a goodwill impairment exists, an entity should consider whether there are any events or circumstances that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The adoption of ASU 2010-28 in the quarter ending March 31, 2011 did not have an impact on the Company's consolidated financial statements.

ASU No. 2010-29, Business Combinations, Disclosure of Supplementary Pro Forma Information for Business Combinations (“ASU 2010-29”), was issued in December 2010 to provide clarification regarding pro forma revenue and earnings disclosure requirements for business combinations. ASU 2010-29 specifies that if a public entity presents comparative financial statements, the entity should disclose only revenue and earnings of the combined entity as though the business combination(s) that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period. This ASU also expands the supplemental pro forma disclosures to include a description of the nature and amount of material, nonrecurring pro forma adjustments directly attributable to the business combination included in the reported pro forma revenue and earnings. The Company adopted ASU 2010-29 during the first interim reporting period of 2011 as it relates to pro forma disclosure of the Company's acquisition of the Chandler, Arizona (Extrusion) facility, effective January 1, 2011 (see Note 5).

ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (“ASU 2011-04”), was issued in May 2011. This ASU represents the converged guidance of the FASB and the International Accounting Standards Board on fair value measurement. ASU 2011-04 sets forth common requirements for measuring fair value and for disclosing information about fair value measurements, including a consistent meaning of the term “fair value.” The provisions in this ASU are to be applied prospectively. For public entities, this ASU becomes effective during interim and annual periods beginning after December 15, 2011. Early adoption by public entities is not permitted. The Company expects to adopt the provisions of ASU 2011-04 for the interim period ending March 31, 2012 and does not anticipate the adoption of this ASU to have a material impact on its consolidated financial statements.

ASU No. 2011-05, Presentation of Comprehensive Income (“ASU 2011-05”), was issued in June 2011 to allow an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income in either a single continuous statement of comprehensive income or two separate but consecutive statements. Under either option, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. ASU 2011-05 eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders' equity. ASU 2011-05 does not change the items that are required to be reported in other comprehensive income or the timing to reclassify an item from other comprehensive income to net income and is required to be applied retrospectively. For public entities, this ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2011. Early adoption is permitted. The Company adopted the provisions of ASU 2011-05 for the fiscal year ending December 31, 2011 and applied the two-statement approach, presenting components of net income and total net income in the statement of income and the components and total of other comprehensive income along with a total for comprehensive income in the statement of other comprehensive income.

ASU No. 2011-08, Testing Goodwill for Impairment ("ASU 2011-08"), was issued in September 2011 to simplify the testing for goodwill impairment for both public and nonpublic entities. ASU 2011-08 permits an entity to first assess qualitative factors to determine whether it is "more likely than not" that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The more-likely-than-not threshold is defined as having a likelihood of more than 50%. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted. The Company adopted the provisions of ASU 2011-08 for the interim period ending September 30, 2011. The adoption of ASU 2011-08 did not have a material impact on the Company's consolidated financial statements.

ASU No. 2011-09, Disclosures about an Employer's Participation in a Multiemployer Plan ("ASU 2011-09"), was issued in September 2011 and requires employers to provide additional disclosures regarding their participation in multiemployer pension plans to increase the transparency of their participation and awareness of the commitments and risks involved in participating in such plans. While previous rules require primarily disclosures relating to employers' historical contributions to the plans, ASU 2011-09 requires employers to disclose, among other things, (i) the amount of employer contributions made to each significant plan and to all plans in the aggregate, (ii) whether the employer's contributions represent more than 5% of total contributions to the plan, (iii) whether any such plans are subject to a funding improvement plan, (iv) the expiration dates of collective bargaining agreements and any minimum funding arrangements, and (v) the nature and effect of any changes affecting the comparability of any period in which a statement of income is presented. ASU 2011-09 applies to nongovernmental entities that participate in multiemployer plans and is effective for annual periods for fiscal years ending after December 15, 2011. Early adoption is permitted. ASU 2011-09 is to be applied retrospectively for all prior periods presented. The Company adopted the provisions of ASU 2011-09 for the fiscal year ending December 31, 2011. See Note 9 for detailed disclosure regarding the Company's participation in various multiemployer pension plans.

ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities ("ASU 2011-11"), was issued in November 2011. This ASU require an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effect of those arrangements on its financial position. An entity is required to adopt ASU 2011-11for reporting periods beginning on or after January 1, 2013. The Company does not anticipate the adoption of ASU 2011-11 to have a material impact on its financial statements.

ASU No. 2011-12, Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05 ("ASU 2011-12"), was issued in December 2011 to defer the requirement under ASU 2011-05 to present reclassification adjustments in the Statement of Consolidated Income and does not affect the effective date of any other requirements under ASU 2011-05. The Company has adopted the new disclosure requirement in ASU 2011-05 to disclose the components and total of other comprehensive income as its own separate statement and deferred the disclosure requirement relating to reclassification adjustments as permitted under ASU 2011-12.

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Cash Convertible Senior Notes and Related Transactions, Textuals (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Feb. 15, 2012	Mar. 29, 2010 Convertible Debt	Mar. 31, 2010 Warrant Transactions
Cash Convertible Senior Notes and Related Transactions (Textuals)
Aggregate principal amount of notes pursuant to an indenture							$ 175,000,000
Stated interest rate of notes pursuant to an indenture							4.50%
Capitalized deferred financing costs							5,900,000
Effective interest rate of the Notes							11.00%
Common Stock, Dividends, Per Share, Cash Paid	$ 0.24	$ 0.24	$ 0.96	$ 0.96	$ 0.96
Conversion rate of common stock shares per $1,000 of principal amount						20.6991
Principal amount in conversion feature							$ 1,000
Conversion price of note						$ 48.31
Price as percentage of price of principal amount of notes plus any accrued and unpaid interest for repurchase of notes							100.00%
Stock price threshold for conversion of notes		$ 62.80	$ 62.80
Number of trading days within 30 consecutive trading days						20
Number of consecutive trading days within a calendar quarter						30
Exercise price of call options						$ 48.31
Common stock sold related to option counterparties net share-settled warrants		3,600,000	3,600,000					3,600,000
Initial strike price per share		61.36	61.36			61.35

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Derivative Financial Instruments and Related Hedging Programs, Hedging Discussion (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 mmlbs	Dec. 31, 2010 mmlbs	Dec. 31, 2009 mmlbs	Dec. 31, 2011 2012 mmlbs	Dec. 31, 2011 2013 mmlbs	Mar. 29, 2010 Convertible Debt
Hedges of Operational Risks
Total fabricated products shipments containing fixed price terms	157.0	97.0	162.7
Firm price customer sales contracts containing price risk on anticipated purchases of primary aluminum				103.1	0.4
Hedges Relating to the Notes
Aggregate principal amount of notes						$ 175.0

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Income Tax Matters, Income Before Income Taxes and Tax Provision Table (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income before income taxes by geographic area
Domestic	$ 37.9	$ 23.0	$ 117.8
Foreign	3.4	2.1	0.8
Income before income taxes	41.3	25.1	118.6
Federal income tax (provision) benefit
Current federal tax (provision) benefit	1.4	0	0.7
Deferred federal income tax (provision) benefit	(2.3)	(34.4)	(59.3)
Federal provision applied to (increase) decrease Additional capital/Other comprehensive income	(13.5)	27.9	12.7
Federal income tax (provision) benefit	(14.4)	(6.5)	(45.9)
Foreign income tax (provision) benefit
Current foreign tax (provision) benefit	0.3	0.1	(3.6)
Deferred foreign income tax (provision) benefit	(0.5)	0.2	0.3
Foreign provision applied to (increase) decrease Additional capital/Other comprehensive income	(0.4)	0.4	2.7
Foreign income tax (provision) benefit	(0.6)	0.7	(0.6)
State income tax (provision) benefit
Current state tax (provision) benefit	0.1	(0.5)	(1.1)
Deferred state income tax (provision) benefit	0.7	(10.2)	(2.1)
State provision applied to (increase) decrease Additioanl capital/Other comprehensive income	(2.0)	3.4	1.6
State income tax (provision) benefit	(1.2)	(7.3)	(1.6)
Total income tax (provision) benefit
Current income tax (provision) benefit	1.8	(0.4)	(4.0)
Deferred income tax (provision) benefit	(2.1)	(44.4)	(61.1)
Provision applied to (increase) decrease Additional capital/Other comprehensive income	(15.9)	31.7	17.0
Income tax provision	$ (16.2)	$ (13.1)	$ (48.1)

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Other Income (Expense), Net

12 Months Ended

Dec. 31, 2011

Other Income and Expenses [Abstract]

Other Income (Expense), Net

Other Income (Expense), Net

Other income (expense), net consisted of the following, for each period presented:

	Year Ended December 31,
	2011		2010			2009
Interest income	$	0.2	$	0.3		$	0.1
Unrealized gains (losses) on financial derivatives 1	4.0		(4.9		)	—
All other, net	0.1		0.4			(0.2		)
Other non-operating income (expense), net	$	4.3	$	(4.2	)	$	(0.1	)

____________

¹  See “Derivative Financial Instruments” in Note 1 for a discussion of accounting policy for such instruments.

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Employee Benefits, Defined Contribution Plans (Details) (Defined Contribution Plan, USD $)	12 Months Ended
	Dec. 31, 2011 productionfacilities
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Number of production facilities	7
Hourly Bargaining Unit Employees | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Number of production facilities	3
Hourly Bargaining Unit Employees | Concurrent Match
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Number of production facilities	1
Hourly Bargaining Unit Employees | Fixed Rate and Concurrent Match
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Number of production facilities	2
Hourly Bargaining Unit Employees | No Contributions Required
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Number of production facilities	1
Salaried And Certain Hourly Employee Member | Concurrent Match
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	4.00%
Hired on or after January 1, 2004 | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	2.00%
Hired on or after January 1, 2004 | Salaried And Certain Hourly Employee Member | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	2.00%
Minimum | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan annual employer contribution	800
Minimum | Hourly Bargaining Unit Employees
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Estimated annual contribution to pension and other postretirement benefit plans	1,000,000
Minimum | Salaried And Certain Hourly Employee Member
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Estimated annual contribution to pension and other postretirement benefit plans	4,000,000
Minimum | Hired prior to January 1, 2004 | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	2.00%
Minimum | Hired prior to January 1, 2004 | Salaried And Certain Hourly Employee Member | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	2.00%
Maximum | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan annual employer contribution	2,400
Maximum | Hourly Bargaining Unit Employees
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Estimated annual contribution to pension and other postretirement benefit plans	3,000,000
Maximum | Salaried And Certain Hourly Employee Member
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Estimated annual contribution to pension and other postretirement benefit plans	6,000,000
Maximum | Hired prior to January 1, 2004 | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	10.00%
Maximum | Hired prior to January 1, 2004 | Salaried And Certain Hourly Employee Member | Fixed Rate Contributions
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan employer contribution percentage	10.00%

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Income Tax Matters (Tables)

12 Months Ended

Dec. 31, 2011

Income Tax Disclosure [Abstract]

Income before income taxes by geographic area

Tax provision. Income before income taxes by geographic area is as follows:

	Year Ended December 31,
	2011		2010		2009
Domestic	$	37.9	$	23.0	$	117.8
Foreign	3.4		2.1		0.8
Total	$	41.3	$	25.1	$	118.6

Tax Provision

The (provision) benefit for income taxes consists of:

	Federal			Foreign			State			Total
2011
Current	$	1.4		$	0.3		$	0.1		$	1.8
Deferred	(2.3		)	(0.5		)	0.7			(2.1		)
Provision applied to increase Additional capital/ Other comprehensive income	(13.5		)	(0.4		)	(2.0		)	(15.9		)
Total	$	(14.4	)	$	(0.6	)	$	(1.2	)	$	(16.2	)
2010
Current	$	—		$	0.1		$	(0.5	)	$	(0.4	)
Deferred	(34.4		)	0.2			(10.2		)	(44.4		)
Benefit applied to decrease Additional capital/ Other comprehensive income	27.9			0.4			3.4			31.7
Total	$	(6.5	)	$	0.7		$	(7.3	)	$	(13.1	)
2009
Current	$	0.7		$	(3.6	)	$	(1.1	)	$	(4.0	)
Deferred	(59.3		)	0.3			(2.1		)	(61.1		)
Benefit applied to decrease Additional capital/ Other comprehensive income	12.7			2.7			1.6			17.0
Total	$	(45.9	)	$	(0.6	)	$	(1.6	)	$	(48.1	)

Reconciliation of income tax provision based on effective income tax rate and statutory tax rate

A reconciliation between the provision for income taxes and the amount computed by applying the federal statutory income tax rate to income before income taxes is as follows:

	Year Ended December 31,
	2011			2010			2009
Amount of federal income tax provision based on the statutory rate	$	(14.5	)	$	(8.8	)	$	(41.5	)
(Increase) decrease in federal valuation allowances	—			(0.2		)	0.5
Non-deductible compensation expense	(1.1		)	(0.6		)	(4.7		)
Non-deductible expense	(0.4		)	(0.3		)	(0.5		)
State income taxes, net of federal benefit 1	(0.8		)	(4.7		)	(1.0		)
Foreign income tax benefit	0.6			1.5			—
Other	—			—			(0.9		)
Income tax provision	$	(16.2	)	$	(13.1	)	$	(48.1	)

___________________________

¹  State income taxes of $4.7 in 2010 primarily consists of (i) a $1.9 increase in the valuation allowance relating to certain unused state net operating losses expected to expire and (ii) a $2.3 increase in the income tax provision from a reduction in the state deferred tax asset relating to a decrease in state net operating losses resulting from lower state apportionment factors in various states.

The table above reflects a full statutory U.S. tax provision despite the fact that the Company is only paying alternative minimum tax (“AMT”) in the U.S. and some state income taxes.

Deferred tax assets and liabilities

The components of the Company’s net deferred income tax assets are as follows:

	Year Ended December 31,
	2011			2010
Deferred income tax assets:
Loss and credit carryforwards	$	375.6		$	379.6
VEBAs	—			0.8
Other assets	39.6			25.9
Inventories and other	8.3			27.3
Valuation allowances	(18.8		)	(20.1		)
Total deferred income tax assets — net	404.7			413.5
Deferred income tax liabilities:
Property, plant, and equipment	(67.2		)	(61.9		)
VEBAs	(47.6		)	(59.5		)
Total deferred income tax liabilities	(114.8		)	(121.4		)
Net deferred income tax assets 1,2	$	289.9		$	292.1

__________________________

¹  Of the total net deferred income tax assets of $289.9, $63.0 was included in Prepaid expenses and other current assets and $226.9 was presented as Deferred tax assets, net on the Consolidated Balance Sheet as of December 31, 2011.

²  Of the total net deferred income tax assets of $292.1, $46.8 was included in Prepaid expenses and other current assets and $245.3 was presented as Deferred tax assets, net on the Consolidated Balance Sheet as of December 31, 2010.

Reconciliation of changes in the gross unrecognized tax benefits

A reconciliation of changes in the gross unrecognized tax benefits is as follows:

	Year Ended December 31,
	2011			2010			2009
Gross unrecognized tax benefits at beginning of period	$	15.0		$	15.6		$	15.8
Gross increases for tax positions of prior years	0.1			—			1.6
Gross decreases for tax positions of prior years	—			—			(1.6		)
Gross increases for tax positions of current years	0.4			0.4			0.4
Settlements	(0.5		)	—			(2.8		)
Gross decrease for tax positions relating to lapse of a statute of limitation	(0.9		)	(1.7		)	—
Foreign currency translation	(0.4		)	0.7			2.2
Gross unrecognized tax benefits at end of period	$	13.7		$	15.0		$	15.6

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Commitments. The Company has a variety of financial commitments, including purchase agreements, forward foreign exchange and forward sales contracts, indebtedness (and related Call Options and Warrants) and letters of credit (see Note 3 and Note 4).

Minimum rental commitments under operating leases at December 31, 2011, are as follows: years ending December 31, 2012 - $7.5; 2013 - $6.4, 2014 - $3.6, 2015 - $3.0, 2016 - $2.3, and thereafter - $33.0. Rental expenses were $10.0, $9.9 and $7.3 for 2011, 2010, and 2009, respectively. There are renewal options in various operating leases subject to certain terms and conditions.

Environmental Contingencies. The Company is subject to a number of environmental laws, to fines or penalties assessed for alleged breaches of the environmental laws, and to claims based upon such laws.

The Company has established procedures for regularly evaluating environmental loss contingencies, including those arising from environmental reviews and investigations and any other environmental remediation or compliance matters. The Company’s environmental accruals represent the Company’s undiscounted estimate of costs reasonably expected to be incurred based on presently enacted laws and regulations, existing requirements, currently available facts, existing technology, and the Company’s assessment of the likely remediation actions to be taken.

The following table presents the changes in such accruals, which are primarily included in Long-term liabilities.

	Year Ended December 31,
	2011			2010			2009
Beginning balance	$	20.2		$	9.7		$	9.6
Additional accruals	3.9			13.9			2.4
Less expenditures	(2.1		)	(3.4		)	(2.3		)
Ending balance	$	22.0		$	20.2		$	9.7

During the third quarter of 2010, the Company increased its environmental accruals in connection with the Company's submission of a draft feasibility study to the Washington State Department of Ecology (“Washington State Ecology”) on September 8, 2010 (the “Feasibility Study”). The draft Feasibility Study included recommendations for a range of alternative remediations to primarily address the historical use of oils containing polychlorinated biphenyls, or PCBs, at the Company's Trentwood facility in Spokane, Washington which may be implemented over the next 30 years. During 2011, the Company continued to work with Washington State Ecology to revise the draft Feasibility Study and to determine viable remedial approaches. As of December 31, 2011, no agreement with Washington State Ecology had been reached on the final remediation approach. The draft Feasibility Study is still subject to further reviews, public comment and regulatory approvals before the final decree is issued. The Company expects the consent decree to be issued in late 2012.

At December 31, 2011, environmental accrual of $22.0 represented the Company's best estimate of the incremental cost based on proposed alternatives in the draft Feasibility Study related to the Company’s Trentwood facility in Spokane, Washington and on investigational studies and other remediation activities occurring at certain other locations owned by the Company. The Company expects that these remediation actions will be taken over the next 30 years and estimates that the incremental direct costs attributable to the remediation activities to be charged to these environmental accruals will be approximately $1.2 in 2012, $3.6 in 2013, $1.8 in 2014, $0.8 in 2015, $0.6 in 2016, $14.0 in 2017 and years thereafter through the balance of the 30-year period.

As additional facts are developed, feasibility studies are completed, draft remediation plans are modified, necessary regulatory approval for the implementation of remediation are obtained, alternative technologies are developed, and/or other factors change, there may be revisions to management’s estimates, and actual costs may exceed the current environmental accruals. The Company believes at this time that it is reasonably possible that undiscounted costs associated with these environmental matters may exceed current accruals by amounts that could be, in the aggregate, up to an estimated $21.7 over the next 30 years. It is reasonably possible that the Company’s recorded estimate may change in the next 12 months.

Other Contingencies. The Company is party to various lawsuits, claims, investigations, and administrative proceedings that arise in connection with past and current operations. The Company evaluates such matters on a case-by-case basis, and its policy is to vigorously contest any such claims it believes are without merit. The Company accrues for a legal liability when it is both probable that a liability has been incurred and the amount of the loss is reasonably estimatable. Quarterly, in addition to when changes in facts and circumstances require it, the Company reviews and adjusts these accruals to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel and other information, and events pertaining to a particular case. While uncertainties are inherent in the final outcome of such matters and it is presently impossible to determine the actual cost that may ultimately be incurred, management believes that it has sufficiently reserved for such matters and that the ultimate resolution of pending matters will not have a material adverse impact on its consolidated financial position, operating results, or liquidity.