EXHIBIT 12 TEREX CORPORATION CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES (amounts in millions) Three Months Ended Nine Months Ended September 30, September 30, ------------------------- ------------------------ 2002 2001 2002 2001 ----------- ------------- ----------- ------------ Earnings Income before taxes and extraordinary items................................. $ 11.4 $ (16.0) $ 22.8 $ 19.9 Adjustments: Minority interest in losses of consolidated subsidiaries............. --- --- --- --- Undistributed (income) loss of less than 50% owned investments............ --- --- --- --- Distributions from less than 50% owned investments..................... --- --- --- --- Fixed charges......................... 28.3 24.3 79.1 72.7 ----------- ------------- ----------- ------------ Earnings................................ 39.7 8.3 101.9 92.6 ----------- ------------- ----------- ------------ Fixed charges, including preferred accretion Interest expense, including debt discount amortization................. 22.3 21.9 66.9 66.1 Accretion of redeemable convertible preferred stock...................... --- --- --- --- Amortization/write-off of debt issuance costs................................. 1.2 1.0 3.2 2.7 Portion of rental expense representative of interest factor (assumed to be 33%)................... 4.8 1.4 9.0 3.9 ----------- ------------- ----------- ------------ Fixed charges........................... $ 28.3 $ 24.3 $ 79.1 $ 72.7 ----------- ------------- ----------- ------------ Ratio of earnings to fixed charges........ 1.4x --- 1.3x 1.3x ============ ============ =========== ============ Amount of earnings deficiency for coverage of fixed charges............... $ --- $ 16.0 $ --- $ --- ============ ============ =========== ============