COEUR D'ALENE MINES CORPORATION

PRODUCTION STATISTICS

Three Months Ended

March 31,

2005 2004

ROCHESTER MINE

Silver ozs. 1,135,997 1,310,295

Gold ozs. 13,992 11,475

Cash Costs per oz./silver $6.30 $5.58

Full Costs per oz./silver $8.53 $7.21

GALENA MINE

Silver ozs. 710,296 906,980

Gold ozs. 92 101

Cash Costs per oz./silver $6.73 $4.93

Full Costs per oz./silver $7.45 $5.44

CERRO BAYO(A)(B)

Silver ozs. 659,293 796,545

Gold ozs. 14,868 9,957

Cash Costs per oz./silver $(0.15) $1.52

Full Costs per oz./silver $1.78 $3.59

MARTHA MINE(B)

Silver ozs. 379,060 421,271

Gold ozs. 471 579

Cash Costs per oz./silver $5.07 $3.81

Full Costs per oz./silver $5.51 $4.80

CONSOLIDATED PRODUCTION TOTALS

Silver ozs. 2,884,646 3,435,091

Gold ozs. 29,423 22,011

Cash costs per oz./Silver $4.77 $4.25

Full Costs per oz./Silver $6.32 $5.61

CONSOLIDATED SALES TOTALS

Silver ozs. sold 3,265,000 3,293,000

Gold ozs. sold 35,000 20,000

Realized price per silver oz. $6.85 $6.94

Realized price per gold oz. $424 $392

(A) The negative cash cost per ounce of silver is the result of the gold

by-product credit as a reduction of operating costs.

(B) During the first quarter of 2005, the Company has segregated

operating statistics to conform to current year presentation.

Note: "Cash Costs per Ounce" are calculated by dividing the cash costs computed for each of the Company's mining properties for a specified period by the amount of gold ounces or silver ounces produced by that property during that same period. Management uses cash costs per ounce produced as a key indicator of the profitability of each of its mining properties. Gold and silver are sold and priced in the world financial markets on a US dollar per ounce basis. By calculating the cash costs from each of the Company's mines on the same unit basis, management can easily determine the gross margin that each ounce of gold and silver produced is generating.

"Cash Costs" are costs directly related to the physical activities of producing silver and gold and include mining, processing and other plant costs, deferred mining adjustments, third-party refining and smelting costs, marketing expense, on-site general and administrative costs, royalties, in- mine drilling expenditures that are related to production and other direct costs. Sales of by-product metals (primarily gold and copper) are deducted from the above in computing cash costs. Cash costs exclude depreciation, depletion and amortization, corporate general and administrative expense, exploration, interest, and pre-feasibility costs and accruals for mine reclamation. Cash costs are calculated and presented using the "Gold Institute Production Cost Standard" applied consistently for all periods presented.

Total cash costs per ounce is a non-GAAP measurement and investors are cautioned not to place undue reliance on it and are urged to read all GAAP accounting disclosures presented in the consolidated financial statements and accompanying footnotes. In addition, see the reconciliation of "cash costs" to production costs under "Costs and Expenses" set forth below:

The following tables present a reconciliation between cash costs per ounce and GAAP production costs reported in the Statement of Operations:

Three months ended March 31, 2005

Rochester Silver Cerro Martha Total

Valley Bayo

Production of Silver

(ounces) 1,135,997 710,296 659,293 379,060 2,884,646

Cash Costs per ounce $6.30 $6.73 $(0.15) $5.07 $4.77

Total Cash Costs

(thousands) $7,153 $4,782 $(98) $1,921 $13,758

Add/(Subtract):

Third Party Smelting Costs (210) (1,206) (1,008) (222) (2,646)

By-Product Credit 5,991 938 6,348 201 13,478

Deferred Stripping and

other adjustments (100) -- -- -- (100)

Change in Inventory (2,932) (697) 673 (275) (3,231)

Production Costs $9,902 $3,817 $5,915 $1,625 $21,259

Three months ended March 31, 2004

Rochester Silver Cerro Martha Total

Valley Bayo

Production of Silver

(ounces) 1,310,295 906,980 796,545 421,271 3,435,091

Cash Costs per ounce $5.58 $4.93 $1.52 $3.81 $4.25

Total Cash Costs

(thousands) $7,317 $4,468 $1,208 1,603 $14,596

Add/(Subtract):

Third Party Smelting Costs (232) (1,279) (757) (448) (2,716)

By-Product Credit 4,688 793 4,071 237 9,789

Deferred Stripping

and other adjustment (101) -- -- -- (101)

Change in Inventory (3,895) 1,260 (1,644) (339) (4,618)

Production Costs $7,777 $5,242 $2,878 $1,053 $16,950