EXHIBIT 12.1 TEREX CORPORATION CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES (amounts in millions) Three Months Ended Six Months Ended June 30, June 30, ------------------------ ------------------------- 1999 1998 1999 1998 ------------ ----------- ------------- ---------- Earnings Income (loss) before taxes and minority interest................................ $ 31.1 $ 21.0 $ 57.9 $ 35.6 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........................... 17.2 13.5 31.9 23.3 ---------- --------- ---------- ----------- Earnings.................................. 48.3 34.5 89.8 58.9 ---------- --------- ---------- ----------- Combined fixed charges, including preferred accretion Interest expense, including debt discount amortization............................ 15.6 12.2 28.9 21.0 Accretion of redeemable convertible preferred stock........................ --- --- --- --- Amortization/writeoff of debt issuance costs................................... 0.5 0.5 1.1 1.0 Portion of rental expense representative of interest factor (assumed to be 33%).. 1.1 0.8 1.9 1.3 ---------- --------- ---------- ----------- Fixed charges............................. $ 17.2 $ 13.5 $ 31.9 $ 23.3 ---------- --------- ---------- ----------- Ratio of earnings to combined fixed charges. 2.8x 2.6x 2.8x 2.5x ========== ========= ========== =========== Amount of earnings deficiency for coverage of combined fixed charges................ $ --- $ --- $ --- $ --- ========== ========= ========== ===========