Exhibit 12 E. I. DU PONT DE NEMOURS AND COMPANY COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions) Years Ended December 31 -------------------------------------------------------- 1999 1998 1997 1996 1995 -------- -------- -------- -------- -------- Income from Continuing Operations Before Extraordinary Item ......................... $ 219 $ 1,648 $ 1,432 $ 2,931 $ 2,858 Provision for Income Taxes .................... 1,410 941 1,354 1,416 1,432 Minority Interests in Earnings of Consolidated Subsidiaries ............................... 61 24 43 40 29 Adjustment for Companies Accounted for by the Equity Method ....................... 33 (39) 936 (a) 82 126 Capitalized Interest .......................... (107) (120) (80) (70) (76) Amortization of Capitalized Interest .......... 88 (b) 65 (b) 82 (b) 127 (b) 81 ------- ------- ------- ------- ------- 1,704 2,519 3,767 4,526 4,450 ------- ------- ------- ------- ------- Fixed Charges: Interest and Debt Expense - Continuing Operations .............................. 535 520 389 409 449 Interest and Debt Expense - Discontinued Operations(c) ........................... 180 304 252 304 308 Capitalized Interest - Continuing Operations 107 120 80 70 76 Capitalized Interest - Discontinued Operations(c) ........................... 3 78 90 73 95 Rental Expense Representative of Interest Factor .................................. 66 71 83 80 80 ------- ------- ------- ------- ------- 891 1,093 894 936 1,008 ------- ------- ------- ------- ------- Total Adjusted Earnings Available for Payment of Fixed Charges ........................... $ 2,595 $ 3,612 $ 4,661 $ 5,462 $ 5,458 ======= ======= ======= ======= ======= Number of Times Fixed Charges are Earned ...... 2.9 3.3 5.2 5.8 5.4 ======= ======= ======= ======= ======= - ----------------------------------- (a) Includes write-off of Purchased In-Process Research and Development associated with acquisition of 20% interest in Pioneer Hi-Bred International, Inc. (b) Includes write-off of capitalized interest associated with divested businesses. (c) Divestiture of Conoco Inc. was completed August 6, 1999.