1 Exhibit 12 HECLA MINING COMPANY FIXED CHARGE COVERAGE RATIO CALCULATION For the Nine Months Ended September 30, 1996 and 1997 (In thousands, except ratios) Nine Months Nine Months 1996 1997 ----------- ----------- Income (loss) before income taxes $(32,565) $ 5,893 Add: Fixed Charges 8,670 8,470 Less: Capitalized Interest (1,714) (609) -------- --------- Income (loss) before income taxes $(25,609) $ 13,754 ======== ========= Fixed charges: Preferred stock dividends $ 6,038 $ 6,038 Interest portion of rentals 408 502 Interest expense 2,224 1,930 -------- --------- Total fixed charges $ 8,670 $ 8,470 ======== ========= Fixed Charge Ratio (a) 1.62 Inadequate coverage 34,279 - - ======== ========= Write-downs and other noncash charges: Depreciation, depletion and amortization (mining activity) 15,186 15,137 Depreciation, depletion and amortization (corporate) 256 233 Provision for closed operations 22,691 239 Reduction in carrying value of mining properties 12,902 - - -------- --------- $ 51,035 $ 15,609 ======== ========= (a) Earnings for period inadequate to cover fixed charges.