EXHIBIT 12 BENCHMARK ELECTRONICS, INC. RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) DECEMBER 31, ---------------------------------------------------- 1999 1998 1997 1996 1995 -------- -------- -------- -------- -------- EARNINGS Income before income taxes and extraordinary item $ 20,276 $ 26,890 $ 23,952 $ 14,483 $ 9,531 Fixed charges .................................... 11,637 5,346 2,983 1,774 71 -------- -------- -------- -------- -------- Income before income taxes, extraordinary item and fixed charges ................................ 31,913 32,236 26,935 16,257 9,602 ======== ======== ======== ======== ======== FIXED CHARGES Debt issuance costs .............................. 570 122 60 25 -- Interest expense ................................. 9,696 4,393 2,472 1,442 -- Interest component of rental expense ............. 1,371 831 452 307 71 -------- -------- -------- -------- -------- Total fixed charges .............................. 11,637 5,346 2,984 1,774 71 ======== ======== ======== ======== ======== Earnings to fixed charges ratio: Actual ...................................... 2.74 x 6.03 x 9.03 x 9.16 x 134.75 x(1) (1) Differences in calculated amount due to rounding.