Exhibit 12.1 M.A. Hanna Company Ratio of Earnings to Fixed Charges Nine Months Ended September 30 Year Ended December 31 1997 1996 1996 1995 1994 1993 1992 Consolidated pretax income from continuing operations $ 84,419 $77,309 $102,891 $ 98,821 $ 66,222 $37,654 $27,005 Adjustments Fixed charges - excluding capitalized interest: Consolidated interest expense 16,507 15,582 20,033 26,278 28,549 32,258 32,509 Interest portion of rental expense 4,521 4,856 6,215 5,942 5,624 5,281 4,729 Total fixed charges 21,028 20,438 26,248 32,220 34,173 37,539 37,238 Adjusted earnings $105,447 $97,747 $129,139 $131,041 $100,395 $75,193 $64,243 Ratio of earnings to fixed charges 5.01 4.78 4.92 4.07 2.94 2.00 1.73