EXHIBIT 12.1 AMKOR TECHNOLOGY, INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (IN THOUSANDS EXCEPT RATIO DATA) YEAR ENDED DECEMBER 31, NINE MONTHS ENDED ---------------------------------------------------------------- SEPTEMBER 30, 1997 1998 1999 2000 2001 2002 ---------- ---------- ---------- ---------- ---------- ----------------- Earnings Income (loss) before income taxes, equity in income (loss) of investees and minority interest ................. $ 61,006 $ 100,735 $ 105,288 $ 197,429 $ (429,950) $ (520,447) Interest expense ........................ 37,993 25,860 61,803 127,027 152,067 107,734 Amortization of debt issuance costs ..... -- 1,217 3,466 7,013 22,321 6,170 Interest portion of rent ................ 2,236 2,584 3,481 4,567 7,282 3,751 Less (earnings) loss of affiliates ...... (512) -- 2,622 -- -- -- ---------- ---------- ---------- ---------- ---------- ---------------- $ 100,723 $ 130,396 $ 176,660 $ 336,036 $ (248,280) $ (402,792) ========== ========== ========== ========== ========== ================ Fixed Charges Interest expense ........................ 37,993 25,860 61,803 127,027 152,067 107,734 Amortization of debt issuance costs ..... -- 1,217 3,466 7,013 22,321 6,170 Interest portion of rent ................ 2,236 2,584 3,481 4,567 7,282 3,751 ---------- ---------- ---------- ---------- ---------- ---------------- $ 40,229 $ 29,661 $ 68,750 $ 138,607 $ 181,670 $ 117,655 ========== ========== ========== ========== ========== ================ Ratio of earnings to fixed charges 2.5x 4.4x 2.6x 2.4x -- x(1) -- x(1) ========== ========== ========== ========== ========== ================ (1) The ratio of earnings to fixed charges was less than 1:1 for the nine months ended September 30, 2002. In order to achieve a ratio of earnings to fixed charges of 1:1, we would have had to generate an additional $520.4 million of earnings in the nine months ended September 30, 2002. We recorded charges totaling $282.0 million in the nine months ended September 30, 2002 for goodwill and long-lived asset impairments, lease termination costs and other exit costs. The ratio of earnings to fixed charges was less than 1:1 for the year ended December 31, 2001. In order to achieve a ratio of earnings to fixed charges of 1:1, we would have had to generate an additional $430.0 million of earnings in the year ended December 31, 2001. 39