1 Exhibit 12 CABOT CORPORATION AND CONSOLIDATED SUBSIDIARIES Statement Re: Computation of Ratios of Earnings to Fixed Charges (Dollar amounts in thousands) Years ended September 30 1996 1995 1994 1993 1992 ---- ---- ---- ---- ---- Earnings: Income before taxes $279,834 $256,029 $118,325 $ 67,900 $116,599 Distributed income of affiliated companies 11,173 11,699 5,638 5,988 5,766 Add fixed charges: Interest on indebtedness 41,718 35,639 41,668 44,043 41,714 Portion of rents representative of the interest factor 4,837 5,515 5,879 4,838 4,933 -------- -------- -------- --------- -------- Income as adjusted $337,562 $308,882 $171,510 $122,769 $169,012 Fixed charges: Interest on indebtedness $ 41,718 $ 35,639 $ 41,668 $ 44,043 $ 41,714 Capitalized interest - - - 3,963 - Portion of rents representative of the interest factor 4,837 5,515 5,879 4,838 4,933 -------- -------- --------- --------- --------- Total fixed charges $ 46,555 $ 41,154 $ 47,547 $ 48,881 $ 50,610 Ratio of earnings to fixed charges 7.25 7.51 3.61 2.51 3.34 ======== ======== ========= ========= ========