1 EXHIBIT 99 VALUATION AND QUALIFYING ACCOUNTS ADDITIONS DEDUCTIONS BALANCE AT CHARGED TO CREDITED TO BEGINNING COSTS AND COST AND BALANCE AT DESCRIPTION OF YEAR EXPENSES EXPENSES END OF YEAR - ------------------------------------------------- ----------- ----------- ----------- -------------- JUNE 30, 2000 (UNAUDITED) Allowances deducted from related balance sheet accounts: Accounts receivable $ 29,849 $ - $ - $ 29,849 Inventories 9,140 - - 9,140 Equipment and leasehold improvements 424,270 - - 424,270 DECEMBER 31, 1999 Allowances deducted from related balance sheet accounts: Accounts receivable $ - $ - $ - $ - Inventories - - - - Equipment and leasehold improvements - - - -