1 FORM 10-K DECEMBER 31, 1993 COMMISSION FILE NO. 1-8491 EXHIBIT 11 HECLA MINING COMPANY AND SUBSIDIARIES CALCULATION OF WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING For the Years Ended December 31, 1993, 1992 and 1991 Year Ended December 31, ---------------------------------------------- 1993 1992 1991 ---------- ---------- ---------- Shares of common stock issued at beginning of period 31,651,192 30,308,680 30,118,683 The incremental effect of the issuance of new shares in exchange for outstanding Liquid Yield Option Notes 1,269,217 516,981 - - The incremental effect of the issuance of new shares for the acquisition of La Choya mineral concessions - - 85,321 - - The incremental effect of the issuance of new shares under Stock Option and Employee Stock Ownership Plans 49,970 15,667 35,098 The incremental effect of the issuance of new shares for the acquisition of Mountain West Bark Products, Inc. 8,397 - - - - ---------- ---------- ---------- 32,978,776 30,926,649 30,118,683 Less: Weighted average treasury shares held 63,728 60,933 60,201 ---------- ---------- ---------- Weighted average number of common shares outstanding during the period 32,915,048 30,865,716 30,093,580 ========== ========== ==========