Exhibit 12.1

Kaiser Aluminum Corporation

Computation of Ratio of Earnings to Fixed Charges

(In millions of dollars, except ratio of earnings to fixed charges)

	Six Months  Ended June 30, 2012			Year Ended
				2011			2010			2009			2008			2007
Earnings:
Income (loss) from continuing operations before taxes and equity in (earnings) losses of unconsolidated affiliates		77.0			41.3			25.1			118.6			(91.3	)		182.4
Fixed Charges		13.4			22.6			17.9			5.1			3.4			9.1
Interest capitalized		(1.1	)		(1.3	)		(2.8	)		(2.7	)		(0.3	)		(3.1	)
Amortization of interest capitalized		0.3			0.6			0.5			0.3			0.2			0.2
Earnings		89.6			63.2			40.7			121.4			(88.0	)		188.5
Fixed Charges:
Interest expense, including amortization of discounts, debt issuance costs and interest component of rent expense		10.6			18.0			11.8			—			1.0			4.3
Interest capitalized		1.1			1.3			2.8			2.7			0.3			3.1
Portion of rental representative of interest		1.7			3.3			3.3			2.4			2.1			1.7
Fixed charges		13.4			22.6			17.9			5.1			3.4			9.1
Ratio of earnings to fixed charges		6.7			2.8			2.3			23.6			(25.9	)		20.8
Deficiency of earnings to fixed charges		—			—			—			—			(91.4	)		—