EXHIBIT 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES THREE MONTHS ENDED THREE MONTHS ENDED MARCH 31, 2003 MARCH 31, 2002 2003 2002 2001 2000 1999 ------------------ ------------------ ----- ------ ------ ----- ----- Interest expense net of capitalized interest......................... 3,051 2,995 12,027 11,640 11,279 3,499 295 Rental expense full year..................... 497 534 2,136 2,548 2,707 1,069 1,016 Rental expense 1/3 of full year................. 166 178 178 849 902 356 339 ------ ------ ------- ------ ------ ----- ----- Fixed charges................................... 3,217 3,173 12,205 12,489 12,181 3,855 634 ------ ------ ------- ------ ------ ----- ----- Earnings (Loss) before income taxes............. (2,873) (4,242) (16,755) (6,537) (1,779) 4,239 3,281 Amortization of capitalized interest............ (28) (91) (300) (766) (1,207) -- -- ------ ------ ------- ------ ------ ----- ----- Earnings (Loss) before income taxes and amortization of capitalized interest......... (2,901) (4,333) (17,055) (7,303) (2,986) 4,239 3,281 ------ ------ ------- ------ ------ ----- ----- "Earnings" ("Loss") is fixed charges plus earnings (loss) before income taxes and amortization of capitalized interest......... 316 (1,160) (4,850) 5,186 9,195 8,094 3,915 ------ ------ ------- ------ ------ ----- ----- Ratio of "earnings" ("loss") to fixed charges... 0.1 (0.4) (0.4) 0.4 0.8 2.1 6.2 ------ ------ ------- ------ ------ ----- ----- Preferred dividends............................. -- -- -- -- -- -- -- ------ ------ ------- ------ ------ ----- ----- Fixed charges and preferred dividends........... 3,217 3,173 12,205 12,489 12,181 3,855 634 ------ ------ ------- ------ ------ ----- ----- Ratio of "earnings" ("loss") to fixed charges and preferred dividends...................... 0.1 0.4 (0.4) 0.4 0.8 2.1 6.2 ------ ------ ------- ------ ------ ----- -----