EXHIBIT 12 TEREX CORPORATION CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES (amounts in millions) Three Months Ended Six Months Ended June 30, June 30, ------------------------------------ ----------------------------------- 2004 2003 2004 2003 ---------------- ------------------ ------------------ --------------- Earnings: Income (loss) before income taxes............... $ 73.6 $ (64.9) $ 98.0 $ (48.3) 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............................... 29.3 32.8 58.1 64.2 ---------------- ------------------ ------------------ --------------- Earnings...................................... 102.9 (32.1) 156.1 15.9 ---------------- ------------------ ------------------ --------------- Fixed charges, including preferred accretion: Interest expense, including debt discount amortization................................ 23.4 26.6 45.9 52.5 Accretion of redeemable convertible preferred stock...................................... --- --- --- --- Amortization of debt issuance costs........... 1.3 1.4 2.7 2.7 Portion of rental expense representative of interest factor (assumed to be 33%)......... 4.6 4.8 9.5 9.0 ---------------- ------------------ ------------------ --------------- Fixed charges................................. $ 29.3 $ 32.8 $ 58.1 $ 64.2 ---------------- ------------------ ------------------ --------------- Ratio of earnings to fixed charges.............. 3.5x --- 2.7x --- ================ ================== ================== =============== Amount of earnings deficiency for coverage of fixed charges................................. $ --- $ 64.9 $ --- $ 48.3 ================ ================== ================== ===============