Exhibit 12.1

AMKOR TECHNOLOGY, INC.

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Year Ended December 31,
	2010			2009			2008			2007		2006
	(In thousands)
Earnings
Income (loss) before income taxes	$	251,159		$	126,523		$	(425,688	)	$	234,837	$	182,494
Equity in earnings of unconsolidated affiliate		(6,435	)		(2,373	)		—			—		—
Income (loss) before income taxes and equity in earnings of unconsolidated affiliate		244,724			124,150			(425,688	)		234,837		182,494
Interest expense		96,340			110,747			120,513			134,819		160,909
Amortization of debt issuance costs		4,505			4,649			4,466			5,326		7,250
Interest portion of rent (1)		5,450			5,879			6,559			6,452		5,583
	$	351,019		$	245,425		$	(294,150	)	$	381,434	$	356,236
Fixed Charges
Interest expense	$	96,340		$	110,747		$	120,513		$	134,819	$	160,909
Amortization of debt issuance costs		4,505			4,649			4,466			5,326		7,250
Interest portion of rent		5,450			5,879			6,559			6,452		5,583
	$	106,295		$	121,275		$	131,538		$	146,597	$	173,742
Ratio of earnings to fixed charges (2)		3.3			2.0			—			2.6		2.1

(1)	Represents one-third of total rent expense which we believe is a reasonable estimate of the interest component of rent expense.
(2)	The ratio of earnings to fixed charges was less than 1:1 for 2008. In order to achieve a ratio of earnings to fixed charges of 1:1, we would have had to generate an additional $425.7 million of earnings in 2008.