COEUR D ALENE MINES CORP
DEF 14A, 1999-07-28
GOLD AND SILVER ORES
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<PAGE>   1

                                  SCHEDULE 14A
                                 (RULE 14a-101)

                    INFORMATION REQUIRED IN PROXY STATEMENT

                            SCHEDULE 14A INFORMATION
          PROXY STATEMENT PURSUANT TO SECTION 14(a) of the Securities
                              Exchange Act of 1934

<TABLE>
    <S>                                                   <C>
    Filed by the Registrant [X]
    Filed by a Party other than the Registrant [ ]
    Check the appropriate box:

    [ ] Preliminary Proxy Statement                       [ ] Confidential, For Use of the Commission
                                                          Only (as permitted by Rule 14a-6(e)(2))

    [X] Definitive Proxy Statement

    [ ] Definitive Additional Materials

    [ ] Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12
</TABLE>

                        COEUR D'ALENE MINES CORPORATION
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)

- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of filing fee (Check the appropriate box):

     [X] No fee required.

     [ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and
0-11.

     (1) Title of each class of securities to which transaction applies:

- --------------------------------------------------------------------------------

     (2) Aggregate number of securities to which transaction applies:

- --------------------------------------------------------------------------------

     (3) Per unit price or other underlying value of transaction computed
         pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
         filing fee is calculated and state how it was determined):

- --------------------------------------------------------------------------------

     (4) Proposed maximum aggregate value of transaction:

- --------------------------------------------------------------------------------

     (5) Total fee paid:

- --------------------------------------------------------------------------------

     [ ] Fee paid previously with preliminary materials.

     [ ] Check box if any part of the fee is offset as provided by Exchange Act
         Rule 0-11(a)(2) and identify the filing for which the offsetting fee
         was paid previously. Identify the previous filing by registration
         statement number, or the form or schedule and the date of its filing.

     (1) Amount previously paid:

- --------------------------------------------------------------------------------

     (2) Form, schedule or registration statement no.:

- --------------------------------------------------------------------------------

     (3) Filing party:

- --------------------------------------------------------------------------------

     (4) Date filed:

- --------------------------------------------------------------------------------
<PAGE>   2

                        COEUR D'ALENE MINES CORPORATION
                        400 COEUR D'ALENE MINES BUILDING
                               POST OFFICE BOX I
                                505 FRONT AVENUE
                           COEUR D'ALENE, IDAHO 83814

                                                                   July 28, 1999

Dear Shareholder:

     We are pleased to invite you to attend our Annual Meeting. This year it
will be held the morning of Wednesday, September 8, 1999, at 9:30 A.M., local
time, at The Coeur d'Alene Resort and Conference Center, Second Street and Front
Avenue, Coeur d'Alene, Idaho. In addition to the election of directors,
shareholders will vote on the proposed issuance of Common Stock of the Company
for the acquisition of certain silver assets of Asarco Incorporated, the
proposed amendments to the Articles of Incorporation of the Company calling for
increases in the authorized shares of Common Stock and Preferred Stock and other
changes that conform the Articles of Incorporation with recently effective
amendments to the Idaho Business Corporation Act.

     The proposed acquisition of silver assets of Asarco Incorporated is of
particular importance to the Company. In addition to the acquisition of 50% of
Silver Valley Resources Corporation, which will result in Coeur's ownership of
100% of that corporation, the proposed transaction will enable Coeur to acquire
other significant silver assets, including a promising Bolivian early stage
silver development property. The Board of Directors of Coeur strongly recommends
that shareholders vote in favor of the proposed transaction as it will
significantly enhance Coeur's position as a leading North American silver
producer. Coeur has received an opinion, dated May 17, 1999, from Deutsche Bank
Securities Inc., that the Common Stock to be issued to Asarco in exchange for
the silver assets is fair to Coeur from a financial point of view.

     A Notice of the Annual Meeting and the Proxy Statement follow. You will
also find enclosed a proxy card. We invite you to attend the meeting in person,
but if this is not feasible, it is important that you to be represented by
proxy. If you cannot attend the meeting, we urge you to date and sign the
enclosed proxy card, and return it promptly. We have provided a
return-addressed, permit-stamped envelope for your convenience.

                                          Sincerely,

                                          DENNIS E. WHEELER
                                          Chairman of the Board,
                                          President and Chief Executive Officer

WE URGE YOU TO CAREFULLY CONSIDER EACH OF THE MATTERS TO BE VOTED UPON AT THE
ANNUAL MEETING AND THE BOARD'S RECOMMENDATION THAT SHAREHOLDERS VOTE FOR EACH OF
THE PROPOSALS BEING PRESENTED
<PAGE>   3

                        COEUR D'ALENE MINES CORPORATION
                        400 COEUR D'ALENE MINES BUILDING
                                505 FRONT AVENUE
                               POST OFFICE BOX I
                           COEUR D'ALENE IDAHO 83814

                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

Dear Shareholder:

     Notice is hereby given that the Annual Meeting of Shareholders of Coeur
d'Alene Mines Corporation (the "Company"), an Idaho corporation, will be held at
The Coeur d'Alene Resort and Conference Center, Second Street and Front Avenue,
Coeur d'Alene, Idaho, on Wednesday, September 8, 1999, at 9:30 A.M., local time,
for the following purposes:

          1. To elect a Board of Directors of the Company consisting of eight
     persons to serve for the ensuing year or until their respective successors
     are duly elected and qualified;
          2. To approve the proposed issuance of 7.125 million shares of the
     Company's Common Stock for the acquisition of certain silver assets of
     Asarco Incorporated;
          3. To approve an amendment to Article II of the proposed Restated and
     Amended Articles of Incorporation of the Company authorizing an increase in
     the number of authorized shares of Common Stock from 60 million to 125
     million shares;
          4. To approve an amendment to Article II of the proposed Restated and
     Amended Articles of Incorporation of the Company authorizing an increase in
     the number of authorized shares of Preferred Stock from 10 million to 20
     million shares;
          5. To approve amended Article VI of the proposed Restated and Amended
     Articles of Incorporation of the Company conforming the language relating
     to the limitation of the liability of directors to the recently amended
     Idaho Business Corporation Act;
          6. To approve Article VII of the proposed Restated and Amended
     Articles of Incorporation of the Company providing a new provision relating
     to the indemnification of directors that is permitted under the recently
     amended Idaho Business Corporation Act;
          7. To approve amended Articles III and IV of the proposed Restated and
     Amended Articles of Incorporation which include non-substantive changes
     being made in order to conform to the recently amended Idaho Business
     Corporation Act; and
          8. To transact such other business as properly may come before the
     meeting.

     Nominees for directors to be elected at the Annual Meeting are set forth in
the enclosed Proxy Statement.

     Only shareholders of record at the close of business on Friday, July 9,
1999, the record date fixed by the Board of Directors, are entitled to notice
of, and to vote at, the Annual Meeting.

                                          By order of the Board of Directors,

                                          DENNIS E. WHEELER
                                          Chairman of the Board

Coeur d'Alene, Idaho
July 28, 1999

                             YOUR VOTE IS IMPORTANT

PLEASE DATE, SIGN AND PROMPTLY RETURN THE ENCLOSED PROXY SO THAT YOUR SHARES MAY
BE VOTED IN ACCORDANCE WITH YOUR WISHES. MAIL THE PROXY IN THE ENCLOSED
ENVELOPE, WHICH REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. THE GIVING
OF THE PROXY DOES NOT AFFECT YOUR RIGHT TO VOTE IN PERSON SHOULD YOU ATTEND THE
MEETING.
<PAGE>   4

                                PROXY STATEMENT

GENERAL

     This Proxy Statement is furnished in connection with the solicitation, by
the Board of Directors of Coeur d'Alene Mines Corporation (the "Company" or
"Coeur"), of proxies of shareholders for shares to be voted at the Annual
Meeting of Shareholders to be held on Wednesday, September 8, 1999, and any and
all adjournments thereof.

     Any shareholder executing a proxy has the right to revoke it at any time
prior to its exercise by giving notice to the Secretary of the Company.

     This Proxy Statement and the accompanying proxy are being mailed or given
on or about July 28, 1999, to shareholders of the Company.

                               VOTING SECURITIES

     All shareholders of record as of the close of business on July 9, 1999, are
entitled to vote at the Annual Meeting or any adjournment thereof upon the
matters listed in the Notice of Annual Meeting. Each shareholder is entitled to
one vote for each share held of record on that date. As of the close of business
on July 9, 1999, a total of 21,900,579 shares of common stock, $1 par value per
share (the "Common Stock"), and 7,077,833 shares of Mandatory Adjustable
Redeemable Convertible Securities, $1 par value per share (the "MARCS"), were
issued and outstanding. The holders of shares of Common Stock and the holders of
MARCS will vote together as one class upon all matters to be voted upon at the
Annual Meeting.

     Shares represented by a proxy will be voted according to the instructions,
if any, given in the proxy. Unless otherwise instructed, the person or persons
named in the proxy will vote (1) FOR the election of the eight nominees for
directors listed herein (or their substitutes in the event any of the nominees
is unavailable for election); (2) FOR the approval of the proposed issuance of
Common Stock of the Company for the acquisition of certain silver assets of
Asarco Incorporated; (3) FOR the approval of an amendment to Article II of the
proposed Restated and Amended Articles of Incorporation of the Company
authorizing an increase in the number of authorized shares of Common Stock from
60 million to 125 million shares; (4) FOR the approval of an amendment to
Article II of the proposed Restated and Amended Articles of Incorporation of the
Company authorizing an increase in the number of authorized shares of the
Company's Preferred Stock, par value $1.00 per share, (the "Preferred Stock")
from 10 million to 20 million shares; (5) FOR the approval of amended Article VI
of the proposed Restated and Amended Articles of Incorporation conforming the
language relating to the limitation of the liability of directors to the
recently amended Idaho Business Corporation Act; (6) FOR the approval of Article
VII of the proposed Restated and Amended Articles of Incorporation providing for
a new provision relating to the indemnification of directors that is permitted
under the recently amended Idaho Business Corporation Act; (7) FOR the approval
of amended Articles III and IV of the proposed Restated and Amended Articles of
Incorporation which include non-substantive changes being made in order to
conform to the recently amended Idaho Business Corporation Act; and (8) in their
discretion with respect to such other business as properly may come before the
meeting.

     Votes cast by proxy or in person at the Annual Meeting will be tabulated by
the inspectors of election appointed by the Company for the meeting. The number
of shares represented at the meeting in person or by proxy will determine
whether or not a quorum is present. The inspectors of election will treat
abstentions as shares that are present and entitled to vote for purposes of
determining the presence of a quorum but as unvoted for purposes of determining
the approval of any matter submitted to the shareholders for a vote. If a broker
indicates on the proxy that it does not have discretionary authority as to
certain shares to vote on a particular matter, those shares will not be
considered as present and entitled to vote by the inspectors of election with
respect to that matter.

     The cost of soliciting proxies will be borne by the Company. Proxies may be
solicited by directors, officers or regular employees of the Company in person
or by telephone or telegram. The Company has retained Morrow & Company, Inc.,
New York, New York, to assist it in the solicitation of proxies. That firm's
charge to the Company will be $10,000 plus out-of-pocket expenses.
<PAGE>   5

                                 PROPOSAL NO. 1

                             ELECTION OF DIRECTORS

     Eight directors are to be elected at the Annual Meeting, each to serve for
one year or until his successor is elected and qualified. All of the following
eight nominees currently are members of the Board. Messrs. Robert E. Mellor and
Timothy R. Winterer were appointed to fill vacancies on the Board on December 8,
1998. Proxies will be voted at the Annual Meeting, unless authority is withheld,
FOR the election of the eight persons named below. The Company does not
contemplate that any of the persons named below will be unable, or will decline,
to serve; however, if any such nominee is unable or declines to serve, the
persons named in the accompanying proxy will vote for a substitute, or
substitutes, in their discretion.

<TABLE>
<CAPTION>
                                                                     DIRECTOR
NOMINEE                                                       AGE     SINCE
- -------                                                       ---    --------
<S>                                                           <C>    <C>
DENNIS E. WHEELER...........................................  56       1978
Chairman of the Board of the Company since May 1992;
President since December 1980; Chief Executive Officer since
December 1986; Chief Administrative Officer from December
1980 to December 1986; Secretary from January 1980 to
December 1980; Senior Vice President and General Counsel
from 1978 to 1980. Chairman of the Finance and Planning
Committee and a director of Sierra Pacific Resources (a
public utility holding company).
JOSEPH C. BENNETT...........................................  66       1981
Mining Consultant. Director of Equity Oil Company.
JAMES J. CURRAN.............................................  59       1989
Former Chairman of the Board and Chief Executive Officer,
First Interstate Bank, Northwest Region (Alaska, Idaho,
Montana, Oregon and Washington) from October 1991 to April
30, 1996; Chairman of the Board and Chief Executive Officer,
First Interstate Bank of Oregon, N.A. from February 1991 to
October 1991; Chairman, President and Chief Executive
Officer of First Interstate Bank of Denver, N.A., from April
1990 to January 1991; Chairman, President and Chief
Executive Officer of First Interstate Bank of Idaho, N.A.,
from July 1984 to March 1990.
JAMES A. MCCLURE............................................  74       1991
Attorney with the Boise, Idaho law firm of Givens, Pursley &
Huntley; Consultant to the Washington, D.C. consulting firm
of McClure, Gerard & Neuenschwander, Inc.; United States
Senator from Idaho from 1972 to 1990; former Chairman of the
Senate Energy and Natural Resources Committee.
CECIL D. ANDRUS.............................................  67       1995
Governor of Idaho (1971-1977); Secretary of the Department
of the Interior (1977-1981); Governor of Idaho (1987-1995).
Director of Albertson's Inc. (a nation-wide grocery retail
chain) and Key Corp. (commercial banking). Chairman of the
Andrus Center for Public Policy at Boise State University;
"of counsel" member of the Gallatin Group (a policy
consulting firm).
JOHN H. ROBINSON............................................  48       1998
Vice Chairman of Black & Veatch, an international
engineering and construction firm, since January 1999; Chief
Development Officer of that company from 1997-1998 and
Managing Partner from 1996-1998; Chairman of Black and
Veatch U.K., Ltd and President of Black & Veatch
International since 1994; employed by Black & Veatch since
1972; director of Commerce Bancshares Inc. (a bank holding
company) and Lab Holdings inc. (insurance and health testing
laboratories).
</TABLE>

                                        2
<PAGE>   6

<TABLE>
<CAPTION>
                                                                     DIRECTOR
NOMINEE                                                       AGE     SINCE
- -------                                                       ---    --------
<S>                                                           <C>    <C>
ROBERT E. MELLOR............................................  55       1998
Chief Executive Officer and President of Building Materials
Holding Corporation (distribution and sales of building
materials) 1997 to present, director since 1991; Of Counsel,
Gibson, Dunn & Crutcher, LLP, 1991-1997; held positions of
Director, Executive Vice President and Chief Administrative
Officer, Senior Vice President, General Counsel and
Secretary of DiGiorgio Corporation (food wholesaler and
distributor) from 1976 to 1990. Member of the Board of
Directors of The Ryland Group, Inc. (national residential
home builder).
TIMOTHY R. WINTERER.........................................  62       1998
President and Chief Executive Officer of BHP World Minerals
Corporation (international resources company) from 1997 to
1998; Group General Manager and Executive Vice President,
BHP World Minerals (1996-1997); Senior Vice President and
Group General Manager, BHP World Minerals (1992-1996);
Senior Vice President Operations International Minerals, BHP
Minerals (1985-1992); Executive Vice President, Utah
Development Company (1981-1985).
</TABLE>

MANAGEMENT RECOMMENDS THAT YOU VOTE FOR THE ELECTION OF THE ABOVE NOMINEES AS
DIRECTORS OF THE COMPANY.

     The Board of Directors of the Company met eight times during 1998. The
Company has an Audit Committee, consisting of Messrs. Curran, McClure and
Winterer, which met one time during 1998. The Board also has a Compensation
Committee, comprised solely of outside directors and consisting of Messrs.
Andrus, Bennett, Robinson and Mellor, which met two times during 1998. Each
director attended all of the meetings of the Board of Directors and committees
on which he served except Mr. Bennett, who was absent from one meeting, and Mr.
McClure, who was absent from three meetings. The Company also has an Executive
Committee of its Board on which Messrs. Bennett, Curran, Mellor, Robinson and
Wheeler currently serve and which is authorized to act in the place of the Board
of Directors on limited matters which require action between Board meetings. The
Board of Directors does not have a nominating committee.

                                        3
<PAGE>   7

                                 PROPOSAL NO. 2

APPROVAL OF ISSUANCE OF COMMON STOCK OF THE COMPANY FOR THE ACQUISITION OF
CERTAIN SILVER ASSETS OF ASARCO INCORPORATED

GENERAL

     Coeur and Asarco Incorporated, a New Jersey corporation ("Asarco"), have
entered into a Transaction Agreement dated as of May 13, 1999 and amended and
restated as of June 22, 1999 (the "Transaction Agreement") that provides for the
acquisition by Coeur of certain assets (the "Silver Assets") of Asarco in
exchange for 7,125,000 shares of the Company's Common Stock. The Transaction
Agreement requires that the issuance of the Common Stock in exchange for the
Silver Assets (the "Transaction") be approved by the holders of at least a
majority of the outstanding shares of Common Stock and MARCS (together, the
"Capital Stock") voting in person or by proxy at the Annual Meeting on the
Transaction. The Transaction does not require the approval of Asarco's
shareholders.

     If the Transaction is approved by the requisite shareholder vote and
completed in accordance with the terms of the Transaction Agreement, Asarco will
own 24.5% of the shares of Common Stock that will then be outstanding. After
giving effect to the mandatory conversion of the MARCS into Common Stock on
March 15, 2000, Asarco would own 19.3% of the outstanding Common Stock.

     As a condition to listing, the New York Stock Exchange ("NYSE") requires
prior shareholder approval of the issuance of additional shares of common stock
of a listed company if the number of shares to be issued exceeds 20% of the
shares outstanding before the new issuance. The Company is seeking shareholder
approval of the issuance of the Common Stock to Asarco in the Transaction in
order to comply with the NYSE requirement.

     The Silver Assets to be acquired by the Company are summarized as follows:

     - 50% of the outstanding shares of common stock (the "SVR Stock") of Silver
       Valley Resources Corporation, a Delaware corporation ("SVR"). This will
       result in 100% ownership of SVR by Coeur, which already owns the other
       50% of SVR's outstanding common stock. SVR's assets include the Galena
       Mine, Coeur Mine, Caladay property, related buildings, machinery and
       equipment, and metal and supply inventories, all located in the Coeur
       d'Alene Mining District of Idaho, as well as leases on several adjoining
       mining properties held by others;

     - 100% of the equity interests ("Manguiri Interests") in Empresa Minera
       Manquiri S.R.L., a Bolivian limited liability company, or any successor
       ("Manquiri"). Manquiri's principal asset is the San Bartolome project, an
       early stage silver development property located near the city of Potosi,
       Bolivia. Coeur's independent mining consultants prepared a study of four
       deposit areas at San Bartolome indicating an estimated total geologic
       resource of 105.6 million ounces in the areas tested;

     - 1,500,000 shares of common stock ("PASC Stock") constituting
       approximately 5.2% of the outstanding shares of Pan American Silver
       Corporation, a British Columbia corporation ("Pan American"), and
       warrants to acquire an additional 500,000 shares of Pan American common
       stock (the "PASC Warrants"). Pan American's common stock is traded on the
       Toronto Stock Exchange and the NASDAQ National Market. Its primary assets
       include the Quiruvilca silver mine, a producing mine in northern Peru,
       and silver development properties in Russia and Mexico; and

     - 100% of the outstanding capital stock ("NPMC Stock") of NPMC, Inc. a
       Delaware corporation ("NPMC"). NPMC owns a royalty interest in the
       Quiruvilca mine owned by Pan American.

     Further information concerning SVR, Manquiri, Pan American and the PASC
stock and PASC warrants, and NPMC is set forth under "Description of Silver
Assets to be Acquired."

                                        4
<PAGE>   8

BACKGROUND OF TRANSACTION

     Coeur and Asarco have had an extended business relationship, principally
involving the Coeur and Galena mines in the Coeur d'Alene Mining District. In
January 1995, Coeur and Asarco transferred their respective interests in the
Coeur and Galena mines, and Coeur transferred its interest in the Caladay
property, to SVR which became jointly owned by Coeur and Asarco, each with a 50%
interest. Development, exploration and mining operations have been conducted
through SVR by Coeur and Asarco since the transfer of their respective interests
in 1995.

     Dennis E. Wheeler, Chairman, President and Chief Executive Officer of Coeur
approached Richard de J. Osborne, the then Chairman and Chief Executive Officer
of Asarco (recently retired), in July 1997, to initiate discussions concerning
the possible acquisition by Coeur of Asarco's 50% interest in SVR. In
discussions held in August 1997, Mr. Osborne indicated that Asarco would not be
interested in selling its silver assets piecemeal, but would consider the sale
of all of its silver assets.

     Thereafter, several brief conversations took place between Mr. Wheeler and
Mr. Osborne as to the possible acquisition by Coeur of Asarco's silver assets,
but the matter was not actively pursued until late 1998. On December 28, 1998,
Asarco reiterated to Coeur that it was not interested in an isolated sale of its
50% interest in SVR, but instead was interested in a transaction that included
all of its significant silver assets in exchange for an equity interest in
Coeur. At that time, Coeur retained The Winters Company, an independent mining
consulting firm based in Tucson, Arizona, to evaluate Asarco's resource
estimations and its sampling techniques relating to the San Bartolome property.

     Over the next several weeks, Mr. Wheeler and Mr. Osborne had several
discussions to define the general parameters of a potential transaction. Mr.
Osborne was joined in the discussions by other Asarco executive officers
including, Francis R. McAllister, Chairman and Chief Executive Officer, and
Kevin R. Morano, President and Chief Operating Officer. Mr. Wheeler was joined
in the discussions by Robert Martinez, Senior Vice President and Chief Operating
Officer of the Company, and James K. Duff, Coeur's Vice President -- Business
Development.

     In January 1999 the Company and Asarco entered into a Confidentiality
Agreement that allowed each party access to certain confidential and proprietary
information of the other party for the purpose of allowing both Coeur and Asarco
to evaluate and analyze the desirability of entering into a transaction.

     During January 1999, officers, managers and other employees of the Company,
as well as Coeur's independent consultants, made site visits to the San
Bartolome project in Bolivia. The visits included a review of the geology of the
property and of engineering and metallurgical studies conducted by Asarco.
Coeur's representatives also reviewed relevant legal, environmental and
regulatory matters, and assessed the risks of conducting operations in Bolivia.
In the same period, Coeur representatives also made site visits to SVR and
conducted geological and metallurgical reviews, as well as legal and
environmental analyses to evaluate both the potential benefits and exposures
that would result from 100% ownership of SVR.

     At a meeting held on January 19, 1999, Asarco presented to Coeur a proposal
pursuant to which Asarco would sell to Coeur certain assets including: (i) its
50% interest in SVR; (ii) the San Bartolome project in Bolivia; (iii) its
interest in Northern Peru Mining Corporation (now NPMC); (iv) Asarco's equity
interests in Pan American; and (v) its Troy Mine and Rock Creek Project (both
Montana properties), in exchange for shares representing a significant minority
interest in Coeur.

     On January 20, 1999, Messrs. Wheeler, Duff and Martinez of the Company met
with Messrs. Osborne, McAllister and Morano and other representatives of Asarco
for a detailed presentation by Asarco with respect to the above assets of
Asarco. In addition, Coeur responded to Asarco's due diligence inquiries and
provided information to Asarco regarding Coeur's business affairs, including the
status of the Company's various mining operations, litigation, environmental and
regulatory items, and its financial condition.

     On February 25, 1999 further negotiations occurred by means of a telephone
conference call between representatives of Asarco and Coeur. The Troy Mine and
Rock Creek Project in Montana were removed from

                                        5
<PAGE>   9

the assets to be sold to the Company because they were deemed to be primarily
copper related and therefore not consistent with Coeur's corporate strategy.

     On March 9, 1999, the Coeur Board received and discussed a report presented
to the Directors by management as to the status of the negotiations with Asarco
and the due diligence activities being carried on by both Coeur and Asarco.

     On March 12, 1999, Mr. Wheeler and Mr. Duff attended a meeting with Asarco
representatives to review a proposed Heads of Agreement which was designed to
state the intent of the parties. The meeting included the discussion of a
proposed shareholder agreement designed to protect Asarco's proposed minority
interest in Coeur by addressing such items as a change in the principal business
of the Company, the creation of liens or encumbrances, capital expenditures or
budgets and the amendment of the By-laws and Articles of Incorporation or the
dissolution of the Company.

     Further telephone calls occurred on March 16, 1999 and thereafter regarding
the terms of the Heads of Agreement which was executed on April 2, 1999. The
final Heads of Agreement was intended to reflect the intent of the parties only
and was subject to a definitive agreement.

     On March 18, 1999, Mr. Wheeler and Mr. Osborne reached agreement on the
number of shares (7,125,000) of Coeur Common Stock that Coeur would issue to
Asarco as consideration for the acquisition of the Silver Assets.

     On May 6, 1999, Coeur engaged Deutsche Bank Securities Inc. ("Deutsche Bank
Securities") to act as its independent financial advisor for the purpose of
reviewing the proposed Asarco transaction on behalf of Coeur, including the
preparation of a fairness opinion.

     At a Board meeting held on May 11, 1999, management presented a final due
diligence report to the Board of Directors with a recommendation that the
transaction proceed on the basis described in this Proxy Statement. At that
meeting, Deutsche Bank Securities delivered its oral opinion, subject to its
review of the final Transaction Agreement, that the consideration to be paid by
Coeur for the Silver Assets was fair, from a financial point of view, to Coeur.
The Board approved the Transaction at that meeting and authorized the signing of
the Transaction Agreement and the Shareholder Agreement.

COEUR'S REASONS FOR THE TRANSACTION

     As part of its strategic planning, the Company continually reviews trends
and opportunities in the precious metal mining industry with the view to
expanding its position as a leading North American silver producer with
significant gold production. A core element of management's corporate strategy
is to grow the Company both internally and through acquisitions in order to
improve long-term profitability by leveraging its corporate infrastructure and
technical know-how. Although silver prices have fluctuated somewhat over the
past several years, they have clearly outperformed gold prices. Moreover,
management believes that silver prices are likely to continue to outperform gold
prices over the next several years due to strong physical demand trends and
continued reductions in global inventories.

     Accordingly, the Company's current acquisition strategy is focused on
silver properties. Consistent with this strategy, the acquisition of the Silver
Assets will increase Coeur's current and future silver production, add
substantial silver reserves and resources, and enhance the potential growth
prospects for the Company. The acquisition of the Silver Assets is also expected
to lower Coeur's projected average cost per ounce of silver production, extend
the Company's average remaining mine life and improve Coeur's credit profile by
expanding its equity base.

     In reaching its decision to approve the Transaction Agreement and to
recommend that Coeur shareholders approve the issuance of the Common Stock to
Asarco in exchange for the Silver Assets, the

                                        6
<PAGE>   10

Coeur Board considered a number of factors, including the following (the order
does not reflect relative significance):

          (i) its knowledge of the historical and prospective operating
     environment, business, operations, assets, financial condition and
     operating results of Coeur, including the fact that Coeur already owns 50%
     of SVR;

          (ii) the information developed by Coeur as a result of the due
     diligence visits, studies and analyses of its management team and employees
     and its independent mining consultants;

          (iii) the presentation of Deutsche Bank Securities to the Coeur Board
     of Directors on May 11, 1999, including Deutsche Bank Securities' oral
     opinion (and subsequent written opinion dated May 17, 1999) that, as of
     such date, the 7,125,000 shares of Common Stock (the "Consideration") to be
     paid for the Silver Assets was fair, from a financial point of view, to the
     Company;

          (iv) the terms and conditions of the Transaction Agreement, including
     the amount and form of the Consideration, the parties' representations and
     warranties, covenants and agreements, and the conditions to their
     respective obligations set forth in the Transaction Agreement;

          (v) its assessment of the historical and prospective operating and
     financial performance of the Silver Assets;

          (vi) the proposed inclusion on the Coeur Board of Directors after the
     Transaction of two representatives to be nominated by Asarco;

          (vii) the terms and conditions of the Shareholder Agreement; and

          (viii) Coeur's overall corporate strategy.

RECOMMENDATION OF THE BOARD OF DIRECTORS OF COEUR

     THE BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE TRANSACTION AGREEMENT
AND RECOMMENDS THAT COEUR SHAREHOLDERS VOTE FOR THE APPROVAL OF THE ISSUANCE OF
THE SHARES OF COMMON STOCK IN EXCHANGE FOR THE SILVER ASSETS AS CONTEMPLATED BY
THE TRANSACTION AGREEMENT. FOR THE REASONS SET FORTH UNDER "COEUR'S REASONS FOR
THE TRANSACTION", THE BOARD OF DIRECTORS OF COEUR BELIEVES THAT THE TRANSACTION
AGREEMENT IS FAIR TO, AND IN THE BEST INTERESTS OF, THE COMPANY.

OPINION OF COEUR'S FINANCIAL ADVISOR

     On May 17, 1999, Deutsche Bank Securities delivered its written opinion to
the Coeur Board (the "Deutsche Bank Securities Opinion") that, as of the date of
such opinion, the Consideration to be paid for the Silver Assets was fair, from
a financial point of view, to Coeur.

     THE FULL TEXT OF THE DEUTSCHE BANK SECURITIES OPINION, WHICH SETS FORTH THE
ASSUMPTIONS MADE, MATTERS CONSIDERED AND LIMITATIONS ON THE REVIEW UNDERTAKEN IN
CONNECTION WITH THE OPINION, IS ATTACHED HERETO AS EXHIBIT C TO THIS PROXY
STATEMENT AND IS INCORPORATED HEREIN BY REFERENCE. SHAREHOLDERS OF COEUR ARE
URGED TO, AND SHOULD, READ THE DEUTSCHE BANK SECURITIES OPINION IN ITS ENTIRETY.

     In connection with its opinion, Deutsche Bank Securities reviewed, among
other things: (i) the Transaction Agreement; (ii) certain publicly available
business and financial information relating to the Silver Assets and Coeur; and
(iii) certain other information relating to the Silver Assets and Coeur,
including financial forecasts, projected production information, life of mine
plans and reserve and resource estimates, provided by Coeur. Deutsche Bank
Securities also held discussions with members of the senior management of Coeur
regarding the Transaction and the past and current business operations,
financial condition, and future prospects of the Silver Assets and Coeur. In
addition, Deutsche Bank Securities compared certain financial, operating and
stock market information for the Silver Assets and Coeur with similar
information for certain other companies the securities of which are publicly
traded and performed such other studies and analyses as it considered
appropriate.

                                        7
<PAGE>   11

     Deutsche Bank Securities relied upon the accuracy and completeness of all
the financial and other information reviewed by it, including, without
limitation, the representations and warranties set forth in the Transaction
Agreement, and assumed such accuracy and completeness for purposes of rendering
its opinion. In that regard, Deutsche Bank Securities relied upon the management
of Coeur as to the reasonableness and achievability of the financial and
operating forecasts (and the assumptions and bases thereof) provided to Deutsche
Bank Securities, and with the consent of Coeur, assumed that such forecasts
reflect the best currently available estimates and judgements of such
management. Deutsche Bank Securities specifically relied upon, among other
things, Coeur management's view that the San Bartolome resource is amenable to
cyanidation through heap leaching and that approximately 70% of estimated total
resources at San Bartolome will be converted to proven and probable reserves
within 12 to 18 months of consummation of the Transaction. In addition, Deutsche
Bank Securities did not make an independent evaluation or appraisal of the
assets and liabilities of the Silver Assets and Coeur or any of their
subsidiaries and Deutsche Bank Securities was not furnished with any such
evaluation or appraisal.

     DEUTSCHE BANK SECURITIES' ADVISORY SERVICES AND OPINION WERE PROVIDED FOR
THE INFORMATION AND ASSISTANCE OF THE COEUR BOARD IN CONNECTION WITH ITS
CONSIDERATION OF THE TRANSACTION CONTEMPLATED BY THE TRANSACTION AGREEMENT AND
SUCH OPINION DOES NOT CONSTITUTE A RECOMMENDATION OF THE TRANSACTION TO COEUR OR
A RECOMMENDATION AS TO HOW ANY HOLDER OF COEUR COMMON STOCK OR MARCS SHOULD VOTE
WITH RESPECT TO THE TRANSACTION. The Deutsche Bank Securities Opinion does not
constitute an opinion or imply any conclusion as to the likely trading range for
any securities of Coeur following consummation of the Transaction. The Deutsche
Bank Securities Opinion necessarily is based on economic, market, financial and
other conditions as in effect on, and the information made available to Deutsche
Bank Securities as of, the date of the Deutsche Bank Securities Opinion.
Deutsche Bank Securities does not have any obligation to update, revise or
reaffirm the Deutsche Bank Securities Opinion.

     In connection with rendering the Deutsche Bank Securities Opinion, Deutsche
Bank Securities made a presentation to the Coeur board of directors on May 11,
1999, with respect to certain analyses performed by Deutsche Bank Securities in
evaluating the fairness of the Consideration to Coeur. The following is a
summary of the presentation. To the extent that information concerning the
mining and development of gold was used in the analyses, in order to compare
such information to that concerning the mining and development of silver, it was
assumed that the price of gold is sixty times that of silver (such information
is referred to below as "silver-equivalent" information).

     (i) Selected Companies Analysis.  Deutsche Bank Securities reviewed and
compared certain financial information relating to the Silver Assets and Coeur
to corresponding financial information, ratios and public market multiples for
five publicly traded corporations in the North American silver mining industry:
Apex Silver Mines Ltd., Coeur, Hecla Mining Co., Pan American Silver Corp., and
Sunshine Mining & Refining Co. (the "Selected Companies"). Based on this
information, Deutsche Bank Securities derived and compared various financial
multiples and ratios for the Selected Companies, the Silver Assets and Coeur.
The multiples for the Silver Assets and Coeur were derived based on Coeur's
management forecasts with respect to the performance of the Silver Assets and
Coeur and a stock price of $4.625 per share, the closing price of Coeur Common
Stock on May 7, 1999. The multiples and ratios for the Selected Companies were
based on the most recent publicly available information released by the Selected
Companies, research reports regarding the Selected Companies published by
third-party equity research analysts and the closing price per share of the
common stock of each of the Selected Companies on May 7, 1999.

     Deutsche Bank Securities considered:  (i) adjusted market capitalization
(i.e. market value of common equity plus book value of debt plus preferred stock
plus projected life of mine capital expenditures less cash and cash equivalents)
("Adjusted Market Capitalization") divided by total recoverable
silver-equivalent resources ("Adjusted Market Capitalization Per Ounce of
Recoverable Resources"); (ii) Adjusted Market Capitalization divided by proven
and probable recoverable silver-equivalent reserves ("Adjusted Market
Capitalization Per Ounce of P&P Recoverable Reserves"); (iii) Adjusted Market
Capitalization divided by projected annual silver-equivalent production at
producing and development properties ("Adjusted Market Capitalization Per Ounce
of Projected Annual Production"); and (iv) Adjusted Market Capitalization as a

                                        8
<PAGE>   12

multiple of projected mine cash flow at producing and development properties
based on an assumed silver price of $5.50 per ounce ("Adjusted Market
Capitalization/Projected Mine Cash Flow Multiples").

     Deutsche Bank Securities' analysis indicated: (i) Adjusted Market
Capitalization Per Ounce of Recoverable Resources for the Selected Companies
that ranged from $0.82 to $3.61 with a mean of $2.09, compared to $1.22 for the
Silver Assets and $1.37 for Coeur; (ii) Adjusted Market Capitalization Per Ounce
of P&P Recoverable Reserves for the Selected Companies that ranged from $1.77 to
$3.61 with a mean of $2.60, compared to $7.11 for the Silver Assets (or $1.75
for the Silver Assets based on Coeur management's expectation that approximately
70% of total resources at San Bartolome will be converted to proven and probable
reserves within 12 to 18 months of the consummation of the Transaction), and
$2.51 for Coeur; (iii) Adjusted Market Capitalization Per Ounce of Projected
Annual Production for the Selected Companies that ranged from $15.99 to $46.10
with a mean of $25.01, compared to $12.89 for the Silver Assets and $15.99 for
Coeur; and (iv) Adjusted Market Capitalization/Projected Mine Cash Flow
Multiples for the Selected Companies that ranged from 7.8x to 13.2x with a mean
of 9.9x, compared to 6.0x for the Silver Assets and 9.5x for Coeur.

     No company utilized in the Selected Companies Analysis is identical to the
Silver Assets and Coeur. Accordingly, an analysis of the results of the
foregoing necessarily involves complex considerations and judgments concerning
differences in financial and operating characteristics of the Silver Assets and
Coeur and other factors that could affect the public trading value of the
selected companies or company to which they are being compared. Mathematical
analysis (such as determining the mean or median) is not in itself a meaningful
method of using comparable company data.

     (ii) Contribution Analysis.  Deutsche Bank Securities reviewed certain
historical and projected operating and financial information for the Silver
Assets, Coeur and the pro forma combined entity resulting from the Transaction
based on Coeur's management forecasts and using a stock price of $4.625 per
share, the closing price of Coeur Common Stock on May 7, 1999. The analysis
indicated that the Silver Assets would contribute: (i) 16.8% of the Adjusted
Market Capitalization of the pro forma combined entity; (ii) 18.5% of the total
recoverable silver-equivalent resources of the pro forma combined entity; (iii)
6.7% of the proven and probable recoverable silver-equivalent reserves of the
pro forma combined entity (or 22.5% based on Coeur management's expectation that
approximately 70% of total resources at San Bartolome will be converted to
proven and probable reserves within 12 to 18 months of the consummation of the
Transaction); (iv) 20.1% of projected annual silver-equivalent production of the
pro forma combined entity; and (v) 24.2% of the total projected mine cash flow
(based on an assumed silver price of $5.50 per ounce) of the pro forma combined
entity.

     (iii) Discounted Cash Flow Analysis.  Deutsche Bank Securities performed a
discounted cash flow analysis for the Silver Assets based upon projections
provided by Coeur management. The analysis assumed no inflation and a discount
rate range from 4.0% to 6.0% for SVR and 6.0% to 8.0% for San Bartolome. The
analysis also assumed a range for the price of silver of $5.00 to $6.00 per
ounce. The value of the interests in Pan American were based on current market
prices. The net present value range for the value of the Silver Assets implied
by the discounted cash flow analysis was $13.6 million to $67.6 million.

     (iv) Pro Forma Impact Analysis.  Deutsche Bank Securities analyzed certain
pro forma financial effects resulting from the Transaction. In particular, based
on information provided by Coeur management, Deutsche Bank Securities compared
certain current market valuation information for Coeur to that for the Silver
Assets and derived comparable information for the pro forma combined entity
(based on a stock price of $4.625 per share, the closing price of Coeur Common
Stock as of May 7, 1999). This analysis indicated: (i) Adjusted Market
Capitalization Per Ounce of Recoverable Resources of $1.37 for Coeur, $1.22 for
the Silver Assets and $1.34 for the pro forma combined entity; (ii) Adjusted
Market Capitalization Per Ounce of P&P Recoverable Reserves of $2.51 for Coeur,
$7.11 for the Silver Assets, $1.75 for the Silver Assets based on Coeur
management's expectation that approximately 70% of total resources at San
Bartolome will be converted to proven and probable reserves within 12 to 18
months of consummation of the Transaction and $2.34 for the pro forma combined
entity based on the same expectation with respect to San Bartolome; (iii)
Adjusted Market Capitalization Per Ounce of Projected Annual Production of
$15.99 for Coeur, $12.89

                                        9
<PAGE>   13

for the Silver Assets and $15.37 for the pro forma combined entity; and (iv)
Adjusted Market Capitalization/ Projected Mine Cash Flow Multiples of 9.5x for
Coeur, 6.0x for the Silver Assets and 8.6x for the pro forma combined entity.

     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to partial analysis or summary description. Selecting
portions of the analyses or of the summary set forth above, without considering
the analyses as a whole, could create an incomplete view of the processes
underlying the Deutsche Bank Securities Opinion. In arriving at its fairness
determination, Deutsche Bank Securities considered the results of all such
analyses. The analyses were prepared for purposes of Deutsche Bank Securities
providing its opinion to the Coeur Board as to the fairness of the
Consideration, from a financial point of view, to Coeur and do not purport to be
appraisals or necessarily reflect the prices at which businesses or securities
actually may be sold. Analyses based upon forecasts of future results are not
necessarily indicative of actual future results, which may be significantly more
or less favorable than suggested by such analyses. Because such analyses are
inherently subject to uncertainty, being based upon numerous factors or events
beyond the control of the parties or their respective advisors, none of Coeur,
Asarco, Deutsche Bank Securities, their officers, directors or agents, or any
other person assumes responsibility if future results are materially different
from those forecast. The foregoing summary does not purport to be a complete
description of the analyses performed by Deutsche Bank Securities and is
qualified by reference to the written opinion of Deutsche Bank Securities set
forth as Exhibit C hereto.

     Deutsche Bank Securities is a nationally recognized investment banking firm
with substantial experience in transactions similar to that contemplated by the
Transaction Agreement, and Deutsche Bank Securities is familiar with Coeur and
its business. Pursuant to a letter agreement dated May 6, 1999 (the "Deutsche
Bank Securities Engagement Letter"), Coeur engaged Deutsche Bank Securities to
act as its financial advisor in connection with the Transaction. For Deutsche
Bank Securities' financial advisory services, Coeur has agreed to pay Deutsche
Bank Securities (i) a fee of $100,000 upon signing the Deutsche Bank Securities
Engagement Letter and (ii) a fee of $400,000 upon consummation of the
Transaction. In addition, Coeur has agreed to reimburse Deutsche Bank Securities
for certain out-of-pocket expenses, and to indemnify Deutsche Bank Securities
against certain liabilities, including certain liabilities under the federal
securities laws. Within the past two years, Deutsche Bank Securities provided
financial advisory services to Coeur in connection with a potential merger
transaction that was not consummated. For its services, Deutsche Bank Securities
received a fee of $100,000. Coeur has no understandings with Deutsche Bank
Securities as to future financial advisory services of any kind.

                    PRINCIPAL TERMS OF TRANSACTION AGREEMENT

     The following description of the Transaction Agreement is only a summary.
Shareholders are encouraged to refer to the complete text of the Transaction
Agreement which is attached to this Proxy Statement as Exhibit A. Please note
that in the Transaction Agreement, the Common Stock to be issued to Asarco is
referred to as the "New Coeur Stock," Manquiri is referred to as "Empresa," and
the Manquiri Interests are referred to as the "Empresa Quotas."

     The Transaction Agreement contemplates the issuance by the Company of
7,125,000 shares of Common Stock to Asarco in exchange for the Silver Assets.
The Transaction will close upon the transfer to Coeur of certificates for SVR
Stock, Manquiri Interests, PASC Stock, PASC Warrants and NPMC Stock, and the
issuance, in exchange, to Asarco of the shares of Common Stock (the "Closing").
The date on which the Closing occurs is the "Closing Date." It is a condition of
the Transaction Agreement that the Common Stock to be issued to Asarco shall
have been duly authorized for listing on the NYSE, subject only to notice of
issuance, prior to the Closing Date.

PRINCIPAL REPRESENTATIONS AND WARRANTIES

     The Transaction Agreement contains a number of reciprocal representations
and warranties of the Company and Asarco as to, among other things,
incorporation and good standing, corporate power and authority to enter into the
Transaction Agreement and perform obligations thereunder, required consents and

                                       10
<PAGE>   14

approvals, the absence of any violations due to the execution of the Transaction
Agreement and consummation of the Transaction (other than compliance with HSR
Act discussed below), and the absence of any finder's fees.

     Asarco specifically represents and warrants that it is the beneficial and
record owner of the Silver Assets, free of liens, and that Asarco may convey
good and valid title to the certificates for the SVR Stock, Manquiri Interests,
PASC Stock, PASC Warrants and NPMC Stock. As to SVR, Manquiri and NPMC, Asarco,
in each case, provides representations and warranties as to incorporation and
good standing, power to own property and carry on business, capitalization,
valid issuance of capital stock outstanding, absence of preemptive rights,
financial statements and absence of material changes, use of generally accepted
accounting principles, accuracy of corporate records, good and marketable title
to properties and material assets, compliance with laws, environmental matters,
absence of material changes, litigation, timely filing of tax returns and
payment of taxes, employee relations and regulatory compliance.

     Asarco also acknowledges that the Common Stock it will acquire will not
have been registered under the Securities Act of 1933 and that it is acquiring
the Common Stock for its own account and for investment. Also, for a period of
five years from the Closing Date Asarco must obtain the consent of Coeur to any
sale and may not sell any shares of the Common Stock it will acquire to anyone
other than an affiliate of Asarco or in a widely distributed public offering.
See "Principal Provisions of Shareholder Agreement" for further information
regarding Asarco's right of registration under the Securities Act of 1933 and
related matters.

     In addition to the reciprocal representations and warranties summarized
above, Coeur has also provided representations and warranties as to valid
issuance of the Common Stock to be issued to Asarco and its authorization for
NYSE listing, information concerning Coeur furnished to Asarco, accuracy of
corporate records, good and marketable title to properties, litigation, tax
matters, liabilities, compliance with laws, employee relations and environmental
compliance.

     Coeur and Asarco have agreed to indemnify each other and their respective
officers, directors, employees and agents against losses and liabilities,
including attorneys fees, resulting from or arising out of (i) the failure of
either party's representations or warranties made to each other to be true and
correct in all material respects (unless they contain a materiality or knowledge
qualification, then to be true and correct in all respects as so qualified), and
(ii) any material breach or alleged material breach by the other party of any of
its covenants or agreements contained in the Transaction Agreement.

PRINCIPAL COVENANTS OF ASARCO.

     Pursuant to the Transaction Agreement, Asarco has agreed that from the date
of the Transaction Agreement to the Closing, Asarco shall cause SVR, Manquiri
and NPMC to conduct their respective operations in accordance with their
ordinary and usual course of business. Asarco has agreed to cause SVR, Manquiri
and NPMC to use their best efforts to preserve intact their respective business
organization, keep available the services of their officers and employees and
maintain satisfactory relationships with licensors, suppliers, distributors,
clients and others having business relationships with them. Moreover prior to
the Closing, unless consented to by Coeur, or otherwise permitted by the
Transaction Agreement, Asarco will cause SVR, Manquiri and NPMC not to:

     - change their respective certificates of incorporation and by-laws (or
       comparable governing documents) which are to be maintained in their form
       on the date of the Transaction Agreement;

     - enter into or materially amend any material contract or commitment,
       including any labor-management agreement except in the ordinary course of
       business;

     - authorize for issuance, issue, sell, deliver or agree or commit to issue,
       sell or deliver any stock of any class or any other securities or to make
       any other changes in their respective capital structures;

     - incur or modify any liability or obligation of any nature (whether
       accrued, absolute, contingent or otherwise), except in the ordinary
       course of business consistent with past practice;

                                       11
<PAGE>   15

     - permit any of their respective material assets to be subject to any lien
       (other than certain permitted liens);

     - sell, transfer or otherwise dispose of any material assets except in the
       ordinary course of business consistent with past practice, or make any
       acquisition of all or any part of the properties, capital stock or
       business of any other person;

     - declare, pay or set aside any dividend or make any distribution with
       respect to, or split combine, redeem or reclassify, purchase or otherwise
       acquire directly, or indirectly, any shares of their respective capital
       stock;

     - make any tax election or settle and/or compromise any material tax
       liability;

     - make any change in any method of accounting or auditing practice, or
       replace the auditors responsible for the auditing of each of SVR,
       Manquiri and NPMC's books, records or financial statements;

     - pay, discharge or satisfy claims, liabilities or obligations of any kind,
       other than payment, discharge or satisfaction in the ordinary course of
       business and consistent with past practice of liabilities reflected or
       reserved against in their respective financial reports; and

     - commit or agree, whether or not in writing, to do any of the foregoing.

     Asarco has agreed not to take any action, or omit to take any action, which
would cause its representations and warranties contained in the Transaction
Agreement to be untrue or incorrect. During the period from the date of the
Transaction Agreement to the Closing, Asarco shall cause SVR, Manquiri and NPMC
to confer on a regular and frequent basis with representatives of Coeur to
report material operational matters and to report the general status of ongoing
operations. Asarco has agreed to cause each of SVR, Manquiri and NPMC to notify
Coeur of any unexpected emergency or other change in the normal course of its
business or in the operation of its properties and of any governmental
complaints, investigations or hearings (or communications indicating that they
may be contemplated), adjudicatory proceedings, or submissions involving any
material property of SVR, Manquiri or NPMC, or any of their subsidiaries, and to
keep Coeur fully informed of such events and permit its representatives prompt
access to all materials prepared in connection therewith.

     Asarco also agreed to furnish to Coeur material information reasonably
necessary, including financial statements, to assist Coeur in preparing this
Proxy Statement.

PRINCIPAL COVENANTS OF COEUR.

     Pursuant to the Transaction Agreement, Coeur has agreed that from the date
of the Transaction Agreement to the Closing, it shall, and it shall cause each
of its subsidiaries to, conduct operations only in accordance with the ordinary
and usual course of business, and to use their best efforts to preserve intact
their respective business organizations, keep available the services of their
officers and employees and maintain satisfactory relationships with licensors,
suppliers, distributors, clients and others having business relationships with
them. Moreover, prior to the Closing, unless consented to by Asarco, or
otherwise permitted by the Transaction Agreement, Coeur will not:

     - make any material amendment of the By-Laws or Articles of Incorporation
       of Coeur which would be inconsistent with the principles of the
       Transaction Agreement or the Shareholder Agreement (none of the proposed
       amendments to Coeur's Articles of Incorporation are so inconsistent);

     - increase the number of directors of Coeur, which shall be limited to
       eleven;

     - authorize, and shall cause each of its subsidiaries not to authorize, for
       issuance, issuing, selling, delivering or agreeing or committing to
       issue, sell or deliver any stock of any class or any other securities,
       except for the issuance of capital stock by Coeur at fair market value
       for cash in aggregate value not in excess of $100,000,000 and not to make
       any other changes in Coeur's capital structure;

                                       12
<PAGE>   16

     - incur or modify, and shall cause its subsidiaries not to incur or modify,
       any liability or obligation of any nature, except in the ordinary course
       of business consistent with past practice;

     - permit, and shall cause its subsidiaries not to permit, any of their
       respective material assets to be subject to any lien (other than
       permitted liens) in excess of $100,000,000 in aggregate value;

     - sell, transfer or otherwise dispose of and shall cause each of its
       subsidiaries not to sell, transfer or otherwise dispose of any material
       assets except in the ordinary course of business consistent with past
       practice, or make any acquisition of all or any part of the properties,
       capital stock or business of any other person;

     - make, and shall cause each of its subsidiaries not to make, any capital
       expenditure budgets, capital expenditure or commitment therefore
       including approval of capital expenditure budgets or any project
       requiring capital expenditures in excess of $100,000,000;

     - remove or replace the Chief Executive Officer of Coeur;

     - declare, pay or set aside, and shall cause each of its subsidiaries to
       not declare, pay or set aside, any dividend or make distribution with
       respect to, or split, combine, redeem or reclassify, purchase or
       otherwise acquire directly, or indirectly, any shares of its capital
       stock;

     - increase, and shall cause each of its subsidiaries not to increase, any
       indebtedness for borrowed money, except current borrowings and standard
       lines of credit or borrowing from banks to be utilized or secured by
       Coeur or its subsidiaries less than $100,000,000 in aggregate consistent
       with past practice; provided, however, no further approval is required
       for debt restructuring plans currently under consideration;

     - discharge auditors when a material dispute exists in connection with the
       auditing of Coeur's books, records and/or financial statements;

     - pay, discharge or satisfy, and shall cause its subsidiaries not to pay,
       discharge or satisfy, any claims, liabilities or obligations of any kind,
       other than payment, discharge or satisfaction in the ordinary course of
       business and consistent with past practice of liabilities reflected or
       reserved against in the financial statements of Coeur; and

     - commit or agree, whether or not in writing, and shall cause each of its
       subsidiaries not to commit or agree, whether or not in writing, to do any
       of the foregoing.

Coeur has agreed not to take any action, or omit to take any action, which would
cause its representations and warranties to be untrue or incorrect. During the
period from the date of the Transaction Agreement to the Closing, Coeur shall
confer on a regular and frequent basis with representatives of Asarco to report
material operational matters and to report the general status of ongoing
operations. Coeur shall notify, and shall cause each of its subsidiaries to
notify, Asarco of any unexpected emergency or other change in the normal course
of its business or in the operation of its properties and of any governmental
complaints, investigations or hearings (or communications indicating that the
same may be contemplated), adjudicatory proceedings, or submission involving any
material property of Coeur or any of its subsidiaries, and to keep Asarco fully
informed of such events and permit its representatives prompt access to all
materials prepared in connection therewith.

CONDITIONS TO THE CONSUMMATION OF THE TRANSACTION

     The consummation of the Transaction is subject to certain customary
conditions that must be satisfied at or prior to the Closing. These include such
matters as the receipt by each party of opinions of counsel, good standing and
other official certificates as to the corporate existence and qualification to
do business of Coeur and its subsidiaries, and of SVR, Manquiri and NPMC and
their representative subsidiaries, and copies of their governing instruments;
certificates of Coeur and Asarco as to the absence of material adverse changes
in the condition of Coeur and its subsidiaries, and in the condition of SVR,
Manquiri or NPMC, and as to the absence of pending or threatened litigation to
prohibit or restrain any part of the Transaction; applicable waiting periods
under the Hart-Scott-Rodino Act have expired or been terminated and all other
governmental

                                       13
<PAGE>   17

approvals and any necessary third party consents to the consummation of the
Transaction have been received or waived.

  Additional Conditions to Obligation of Coeur.

     The obligation of Coeur to consummate the Transaction is subject to
satisfaction of the following additional conditions:

     - holders of a majority of the Coeur Capital Stock voting on the
       Transaction shall have approved the issuance of the Common Stock to
       Asarco for the acquisition of the Silver Assets as contemplated by the
       Transaction Agreement;

     - the representations and warranties of Asarco shall be true and correct in
       all material respects (unless they contain a materiality or knowledge
       qualification, then they shall be true and correct in all respects as so
       qualified) on and as of the Closing as though made on and as such time;
       and

     - all matters to be performed by Asarco prior to the Closing shall have
       been duly performed in all material respects.

  Additional Conditions to Obligation of Asarco.

     The obligation of Asarco to consummate this Transaction is subject to the
following additional conditions:

     - holders of a majority of the Coeur Capital Stock voting on the
       Transaction shall have approved the issuance of the Common Stock to
       Asarco for the acquisition of the Silver Assets. In addition, the Coeur
       Board of Directors shall have approved the Shareholder Agreement and, as
       part of such approval, Coeur shall have taken necessary action to, among
       other things (i) exclude from Coeur's Shareholder's Rights Plan, Asarco's
       acquisition of up to 25% of the outstanding Coeur Common Stock, (ii)
       approve the acquisition of, and consideration paid for, the Common Stock
       by Asarco for purposes of any fair price provision applicable to Coeur so
       that no restrictions or obligations shall be imposed on Asarco
       thereunder, (iii) exclude Asarco from any restrictions or obligations
       that may be imposed by Idaho law by reason of Asarco's acquisition of up
       to 25% of Coeur Common Stock and (iv) determine that no adjustment to the
       conversion price of any outstanding securities convertible into Coeur
       Common Stock is required by reason of the Transaction that could increase
       the amount of Common Stock issued upon conversion;

     - the representations and warranties of Coeur shall be true and correct in
       all material respects (unless they contain a materiality or knowledge
       qualification, then they shall be true and correct in all respects as so
       qualified) on and as of the Closing as though made on and as such time;

     - Coeur shall have entered into the Shareholder Agreement;

     - all matters to be performed by Coeur prior to the Closing shall have been
       duly performed in all material respects. Among other matters, these
       include the authorization for listing on the NYSE, subject only to notice
       of issuance, prior to the Closing Date, of the Common Stock to be issued
       to Coeur.

ACCOUNTING TREATMENT AND TAX CONSIDERATION

     The acquisition of the Silver Assets by Coeur will be treated as a purchase
for accounting purposes. The consummation of the Transaction will have no tax
consequences to Coeur's shareholders.

                                       14
<PAGE>   18

TERMINATION

     The Transaction Agreement may be terminated at any time prior to Closing:

     - by either party if the Closing has not occurred by September 30, 1999,
       except that the right to terminate the Transaction Agreement will not be
       available to a party whose failure to fulfill any obligation under the
       Termination Agreement is the cause of a failure of the Closing before
       that date;

     - by Asarco, on the one hand, or Coeur, on the other hand, if there has
       been a material breach of any covenant, representation or warranty of
       Coeur or Asarco, respectively, and the breach has not been cured within
       10 days following receipt by the breaching party of notice of the breach;
       and

     - by either party if any law or regulation makes consummation of the
       Transaction illegal or otherwise prohibited, or if any final judgment,
       conjunction, order or decree of a competent authority is entered
       prohibiting the Transaction.

EXPENSES

     Each party shall pay all of its own expenses relating to its performance
under, and the transactions contemplated by, the Transaction Agreement,
including, without limitation, the fees and expenses of its legal, financial,
accounting and other advisers. However, the parties shall share equally all
filing fees of either party pursuant to the Hart-Scott-Rodino Act.

REGULATORY MATTERS

     The Transaction could not be consummated until the parties notified and
furnished information to the Federal Trade Commission ("FTC") and the Antitrust
Division of the United States Department of Justice and the applicable waiting
period requirements were satisfied. On June 24, 1999, Coeur and Asarco each
filed with the FTC and the Antitrust Division a Notification and Report Form
under the Hart-Scott-Rodino Act. The parties requested early termination of the
waiting period, which was granted on July 9, 1999.

     Notwithstanding the expiration of the waiting period under the
Hart-Scott-Rodino Act relating to the Transaction, at any time before or after
the completion of the Transaction, either the Antitrust Division or the FTC
could take any action under the antitrust laws as it deems necessary or
desirable in the public interest, including seeking to enjoin the consummation
of the Transaction. Private parties and the state attorneys general may also
bring actions under the U.S. antitrust laws depending on the circumstances.
Although Coeur and Asarco believe that the Transaction is legal under the U.S.
antitrust laws, there can be no assurance that a challenge to the merger on
antitrust grounds will not be made or if such a challenge is made, that it would
not be successful.

PRINCIPAL PROVISIONS OF SHAREHOLDER AGREEMENT

     Pursuant to the terms of the Transaction Agreement, Coeur and Asarco shall
enter into the Shareholder Agreement upon the completion of the Transaction on
the Closing Date. A summary of the terms of the Shareholder Agreement is set
forth below. The complete text of the Shareholder Agreement is attached to this
Proxy Statement as Exhibit B.

  Board Representation.

     Asarco shall have the right to nominate two directors for election to the
Coeur Board of Directors. However, if Asarco voluntarily sells or transfers its
shares of Coeur Common Stock to any person other than an affiliate and, as a
result, its ownership is reduced to less than 10% of Coeur's outstanding Common
Stock, it shall have the right to nominate only one director. This right shall
continue so long as Asarco owns at least 1% of Coeur's outstanding Common Stock.

     Asarco's initial two nominees shall be appointed on the Closing Date.
Asarco has designated Francis R. McAllister, Chairman of the Board and Chief
Executive Officer of Asarco, and Kevin R. Morano, President and Chief Operating
Officer of Asarco, as its initial nominees.

                                       15
<PAGE>   19

     Mr. McAllister, age 56, has been President and Chief Officer of Asarco
since January 1998. He previously was its Executive Vice President in charge of
copper operations from April 1993 until January 1998, and its Chief Financial
Officer from April 1982 until April 1993.

     Mr. Morano, age 45, has been Executive Vice President and Chief Financial
Officer of Asarco since January 1998. He previously was its Vice President,
Finance and Chief Financial Officer from 1993 until January 1998, and general
manager of Asarco's Ray Complex 1991 to 1993.

     The election of Messers.  McAllister and Morano to the Board is subject to
the consummation of the Transaction. Asarco has agreed to the vote for the slate
of directors, including Asarco's nominees, recommended by the Coeur Board of
Directors for election at any annual or special meeting called for that purpose
in the future.

  Standstill Agreement.

     Asarco has agreed that for a period of five years from the Closing Date,
without the consent of Coeur's Board, it shall not acquire Common Stock or other
voting securities of the Company, or any rights or options to buy any of such
securities, if after any such acquisition, Asarco would own more than 25% of the
total voting power of all voting equity securities of Coeur.

  Registration Rights.

     Asarco has certain rights to request the registration under the Securities
Act of 1933 of the shares of Common Stock it will receive in the Transaction,
including any shares issued with respect to those shares by way of any stock
dividend or split, or any combination of shares, merger, consolidation or other
reorganization (the "Registerable Stock").

     At any time and from time to time after the Closing, upon Asarco's request
for a registration of at least 1,000,000 shares of Registerable Stock, the
Company must use all reasonable efforts to file a registration statement under
the Securities Act of 1933 and cause it to become effective within 90 days of
Asarco's request ("demand registration").

     In addition, if Coeur at any time proposes to register any of its equity
securities under the Securities Act of 1933 (other than equity securities
registered for an acquisition or an employee benefit plan), Coeur will give
notice of the proposed filing to Asarco, which shall have the right to include
Registerable Stock in the Company's filing ("piggyback registration"). If
Coeur's registration statement is to cover an underwritten offering, the
Registerable Stock shall be included in the underwriting on the same terms and
conditions as the securities otherwise being sold through the underwriting.

     All costs, expenses and fees, except fees of Asarco's counsel, with respect
to a demand registration, shall be paid by Coeur, and with respect to a
piggyback registration, shall be paid by Coeur and Asarco pro rata in proportion
to the offering price of the securities being sold by each.

     Coeur has also agreed to indemnify Asarco and its directors and officers,
and to the extent that adequate indemnification is not available, to contribute
to the payment of, any liability or expense which any of them may incur in
connection with any registration, public sale or other disposition of the
Registerable Shares because of any untrue statement of material fact, or any
material omissions, in any prospectus, registration statement, or related
documents, or any fraudulent practices by Coeur. However, Coeur will not be
liable to Asarco or its directors and officers for any liability based on
information presented to Coeur by Asarco or an underwriter for use in any
registration statement. The registration rights and indemnities discussed above
also apply to Registerable Stock held by any affiliate of Asarco.

  Certain Corporate Actions.

     Until Asarco holds less than 10% of Coeur's outstanding Common Stock as a
result of voluntary sales of Registerable Shares, the following actions will
require the prior written consent of Asarco: (i) approval of capital expenditure
budgets and any single project requiring a capital expenditure in excess of
$100,000,000;

                                       16
<PAGE>   20

(ii) approval of any financial institution, terms and conditions and amounts
with respect to any standard lines of credit or borrowings to be utilized or
secured by Coeur exceeding $100,000,000; (iii) the creation of any lien in
excess of $100,000,000 on the assets of Coeur or any of its subsidiaries; (iv)
the discharge of auditors when a material dispute exists in connection with the
auditing of Coeur's books, records or financial statements; (v) the liquidation,
dissolution or general winding-up of Coeur or any material subsidiary or the
filing on behalf of Coeur or any material subsidiary of any voluntary petition
seeking relief under the bankruptcy laws of the relevant jurisdiction; (vi) any
material change in the nature of Coeur's business from its current business of
precious metals mining and other businesses directly related thereto; (vii) the
issuance by Coeur of any Common Stock or other class of its Capital Stock for
consideration other than cash for a value in excess of $100,000,000; (viii) any
material amendment of the By-Laws or Articles of Incorporation of Coeur which
would conflict with, or in any way be inconsistent with, the terms of the
Shareholder Agreement; and (ix) any increase in the number of directors of Coeur
above eleven.

     Asarco will be deemed to have consented to any of the above actions if (i)
the action shall have been included as a specific agenda item for a meeting of
Coeur's Board of Directors, (ii) the written agenda together with all relevant
information relating to the proposed action shall have been delivered to
Directors in advance of such meeting and (iii) at such meeting Directors
nominated by Asarco vote in favor of such action. Also, no consent of Asarco
will be required for any Coeur debt restructuring, including any exchange,
subject to certain conditions.

                     UNAUDITED PRO FORMA COMBINED CONDENSED
                        FINANCIAL STATEMENT INFORMATION

     The following unaudited pro forma combined condensed financial statements
have been prepared to reflect the pro forma impact on prior periods of the
acquisition of the Silver Assets from Asarco. The Silver Assets consist of
Asarco's: (i) 50% interest in Silver Valley Resources Corporation ("SVR"); (ii)
100% interest in Empresa ME> Minera Manquiri S.R.L., or any successor
("Manquiri"); (iii) 1.5 million shares of common stock and 500,000 share
purchase warrants of Pan American; and (iv) 100% interest in NPMC Inc. ("NPMC").
This acquisition will be accounted for under the purchase method of accounting
in accordance with APB Opinion No. 16. The carrying values of assets and
liabilities other than the mining properties, long-term intangibles and
short-term investments have been estimated to approximate fair market value.
Accordingly, no pro forma adjustments to these amounts were made to reflect the
allocation and amount of the ultimate purchase prices. Any purchase price
adjustments will be made within one year from the acquisition date and are not
expected to be material to the pro forma financial information taken as a whole.

     The unaudited pro forma combined condensed consolidated balance sheet has
been prepared to reflect the acquisition of the Silver Assets as if it occurred
on March 31, 1999. Manquiri, the Pan American shares and warrants and NPMC are,
collectively, the "Other Silver Assets" in the balance sheet. The unaudited pro
forma combined condensed consolidated statements of operations reflect the
combined results of operations of Coeur, SVR, Manquiri and NPMC, for the year
ended December 31, 1998, and for the three months ended March 31, 1999 as if the
acquisition occurred on January 1, 1998 and January 1, 1999, respectively.
Manquiri and NPMC are, together, the "Asarco Other Assets" in the statements of
operations.

     The unaudited pro forma combined condensed consolidated financial
statements are presented for illustrative purposes only and are not intended to
represent the combined condensed consolidated financial position or the results
of operations which would have been attained had the acquisitions been
consummated at either of the foregoing dates or which can be attained in the
future. The unaudited pro forma combined condensed consolidated financial
statements including the notes thereto, are qualified in their entirety by
reference to, and should be read in conjunction with, the historical
consolidated financial statements of Coeur included in its annual report on Form
10-K for the year ended December 31, 1998, as amended, and its quarterly report
on Form 10-Q for the three months ended March 31, 1999.

                                       17
<PAGE>   21

                COEUR D'ALENE MINES CORPORATION AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS
                               AT MARCH 31, 1999
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                            UNAUDITED
                                                UNAUDITED HISTORICAL                        PRO FORMA
                                                FINANCIAL STATEMENTS                         COMBINED
                                          ---------------------------------                 CONDENSED
                                                     SILVER    OTHER SILVER    PRO-FORMA    FINANCIAL
                                           COEUR     VALLEY       ASSETS      ADJUSTMENTS   STATEMENTS
                                          --------   -------   ------------   -----------   ----------
<S>                                       <C>        <C>       <C>            <C>           <C>
ASSETS
Cash and cash Equivalents...............  $117,804   $   697                   $ (2,000)(A)  $116,501
Short-term investments..................     3,207                $3,091          6,209(A)   $ 12,507
Receivable and pre-payments.............     7,385     3,282                                   10,667
Inventories.............................    47,376     3,236                                   50,612
                                          --------   -------      ------       --------      --------
          Total current assets..........   175,772     7,215       3,091          4,209       190,287
Property, plant and equipment:
Property, plant and equipment (net).....    40,625     6,008                                   46,633
Mining properties:
Operational mining properties (net).....    34,206    13,873                     (7,662)(A)    46,354
                                                                                  5,937(B)
Developmental properties................    27,518                 1,468         20,637(A)     49,623
                                          --------   -------      ------       --------      --------
                                            61,724    13,873       1,468         18,912        95,977
OTHER ASSETS
Notes receivable........................     1,516                                              1,516
Debt issuance costs, net of accumulated
  amortization..........................     6,335                                              6,335
Investment in unconsolidated
  affiliate.............................    65,461                              (16,400)(B)    49,061
Other...................................     3,033                 2,359         (2,359)(A)     3,033
                                          --------   -------      ------       --------      --------
          Total.........................    76,345                 2,359        (18,759)       59,945
                                          --------   -------      ------       --------      --------
          Total assets..................  $354,466   $27,096      $6,918       $  4,362      $392,842
                                          ========   =======      ======       ========      ========
</TABLE>

 See notes to unaudited pro forma condensed consolidated financial statements.

                                       18
<PAGE>   22

                COEUR D'ALENE MINES CORPORATION AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS
                               AT MARCH 31, 1999
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                           UNAUDITED
                                               UNAUDITED HISTORICAL                        PRO FORMA
                                               FINANCIAL STATEMENTS                         COMBINED
                                        ----------------------------------                 CONDENSED
                                                    SILVER    OTHER SILVER    PRO-FORMA    FINANCIAL
                                          COEUR     VALLEY       ASSETS      ADJUSTMENTS   STATEMENTS
                                        ---------   -------   ------------   -----------   ----------
<S>                                     <C>         <C>       <C>            <C>           <C>
CURRENT LIABILITIES
A/P -- trade..........................  $   3,738   $   451                                $   4,189
Accrued liabilities...................     10,722       650                                   11,372
Accrued interest......................      6,556                                              6,556
Accrued salaries and wages............      3,561       187                                    3,748
Current portion of remediation
  costs...............................      2,116                                              2,116
Current portion of obligations under
  capital leases......................        243                                                243
                                        ---------   -------     -------       --------     ---------
          Total current liabilities...     26,936     1,288                                   28,224
OTHER LIABILITIES
Convertible bonds payable 6%..........     45,803                                             45,803
Convertible bonds payable -- 6.375%...     93,372                                             93,372
Convertible bonds payable -- 7.25%....    107,277                                            107,277
Other long-term liabilities...........     13,926     4,883                                   18,809
                                        ---------   -------     -------       --------     ---------
          Total long-term
            liabilities...............    260,378     4,883                                  265,261
                                        ---------   -------     -------       --------     ---------
SHAREHOLDERS' EQUITY
Capital stock -- P/S..................      7,078                                              7,078
Capital stock -- C/S..................     22,958     8,868                   $  7,125(A)     30,083
                                                                                (4,434)(B)
                                                                                (4,434)(A)
Capital surplus.......................    376,547    16,463     $ 8,463         25,080(A)    401,627
                                                                                (8,232)(B)
                                                                               (16,694)(A)
Accumulated deficit-end...............   (326,070)   (4,406)     (1,545)         2,203(B)   (326,070)
                                                                                 3,748(A)
Repurchased and non-vested shares.....    (13,190)                                           (13,190)
Unrealized gains (losses) on
  securities..........................       (171)                                              (171)
                                        ---------   -------     -------       --------     ---------
          Total shareholders'
            equity....................     67,152    20,925       6,918          4,362        99,357
                                        ---------   -------     -------       --------     ---------
          Total liabilities and
            shareholders' equity......  $ 354,466   $27,096     $ 6,918       $  4,362     $ 392,842
                                        =========   =======     =======       ========     =========
</TABLE>

 See notes to unaudited pro forma condensed consolidated financial statements.

                                       19
<PAGE>   23

                COEUR D'ALENE MINES CORPORATION AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1998
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                                             UNAUDITED
                                               UNAUDITED HISTORICAL                          PRO FORMA
                                               FINANCIAL STATEMENTS                           COMBINED
                                        ----------------------------------                   CONDENSED
                                                    SILVER    ASARCO OTHER    PRO-FORMA      FINANCIAL
                                         COEUR*     VALLEY       ASSETS      ADJUSTMENTS     STATEMENTS
                                        ---------   -------   ------------   -----------     ----------
<S>                                     <C>         <C>       <C>            <C>             <C>
FROM MINING OPERATIONS
Sales of dore and concentrate.........  $ 102,505   $14,133                                  $ 116,638
Less cost of mining operations........     97,878    14,399                    $ (838)(C)      111,439
                                        ---------   -------     --------       ------        ---------
Gross profits.........................      4,627      (266)                      838            5,199
OTHER INCOME
Interest, dividends and other.........     11,286       608                                     11,894
Income (loss) from unconsolidated
  affiliate...........................     (2,130)                                293(B)        (1,837)
                                        ---------   -------     --------       ------        ---------
Subtotal..............................      9,156       608                       293           10,057
                                        ---------   -------     --------       ------        ---------
          Total income................     13,783       342                     1,131           15,256
                                        ---------   -------     --------       ------        ---------
EXPENSES
General and administrative............     13,051       395                                     13,446
Interest..............................     13,662                                               13,662
Mining exploration....................      9,391       522                                      9,913
Write-down of mining properties.......    223,172                                              223,172
                                        ---------   -------     --------       ------        ---------
          Total expenses..............    259,276       917                                    260,193
                                        ---------   -------     --------       ------        ---------
Net income (loss) from continuing
  operations before taxes.............   (245,493)     (575)                    1,131         (244,937)
Tax (benefit) provision...............        919        10                                        929
                                        ---------   -------     --------       ------        ---------
Net loss from continuing operations...   (246,412)     (585)                    1,131         (245,866)
Preferred stock dividends.............    (10,532)                                             (10,532)
                                        ---------                                            ---------
Net loss from continuing operations
  attributable to common..............  $(256,944)                                           $(256,398)
Basic and Diluted Earnings Per Share
  Data:
  Weighted average number of share of
     common stock and equivalents used
     in calculation...................     21,899                               7,125(D)        29,024
                                        =========                                            =========
  Net loss from continuing
     operations.......................  $  (11.73)                                           $   (8.83)
                                        =========                                            =========
</TABLE>

- ---------------
* Based on Coeur's audited financial statements.

 See notes to unaudited pro forma condensed consolidated financial statements.

                                       20
<PAGE>   24

                COEUR D'ALENE MINES CORPORATION AND SUBSIDIARIES

                CONSOLIDATED PRO FORMA STATEMENTS OF OPERATIONS
                      FOR THE QUARTER ENDED MARCH 31, 1999
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                                             UNAUDITED
                                                UNAUDITED HISTORICAL                         PRO FORMA
                                                FINANCIAL STATEMENTS                          COMBINED
                                           -------------------------------                   CONDENSED
                                                     SILVER   ASARCO OTHER    PRO-FORMA      FINANCIAL
                                            COEUR    VALLEY      ASSETS      ADJUSTMENTS     STATEMENTS
                                           -------   ------   ------------   -----------     ----------
<S>                                        <C>       <C>      <C>            <C>             <C>
FROM MINING OPERATIONS
Sales of dore and concentrate............  $18,259   $4,648                                   $22,907
Less cost of mining operations...........   17,718    4,386                    $  (227)(C)     21,877
                                           -------   ------     --------       -------        -------
Gross profits............................      541      262                        227          1,030
OTHER INCOME
Interest, dividends and other............    1,556      215                                     1,771
Income (loss) from unconsolidated
  affiliate..............................     (471)                               (154)(B)       (625)
                                           -------   ------     --------       -------        -------
Subtotal.................................    1,085      215                       (154)         1,146
                                           -------   ------     --------       -------        -------
          Total income...................    1,626      477                         73          2,176
                                           -------   ------     --------       -------        -------
EXPENSES
Administrative...........................    2,773      169                                     2,942
Interest.................................    4,189                                              4,189
Mining exploration.......................    1,863                                              1,863
                                           -------   ------     --------       -------        -------
          Total expenses.................    8,825      169                                     8,994
                                           -------   ------     --------       -------        -------
Net income (loss) from continuing
  operations before taxes................   (7,199)     308                         73         (6,818)
Tax (benefit) provision..................       74                                                 74
                                           -------   ------     --------       -------        -------
Net loss from continuing operations......   (7,273)     308                         73         (6,892)
Preferred stock dividends................   (2,633)                                            (2,633)
                                           -------                                            -------
Net loss from continuing operations
  attributable to common.................  $(9,906)                                           $(9,525)
Basic and Diluted Earnings Per Share
  Data:
  Weighted average number of share of
     common stock and equivalents used in
     calculation.........................   21,899                               7,125(D)      29,024
                                           =======                                            =======
Net loss from continuing operations......  $ (0.45)                                           $ (0.33)
                                           =======                                            =======
</TABLE>

 See notes to unaudited pro forma condensed consolidated financial statements.

                                       21
<PAGE>   25

                NOTES TO UNAUDITED PRO FORMA COMBINED CONDENSED
                              FINANCIAL STATEMENTS

BASIS OF PRESENTATION

     The unaudited pro forma combined condensed consolidated financial
statements reflect the issuance of Coeur Common Stock, par value $1 per share.
The acquisition will be accounted for under the purchase method of accounting in
accordance with APB Opinion No. 16.

     The purchase price for the Silver Assets from Asarco is approximately $34.2
million and will consist of 7.125 million shares of Coeur Common Stock,
including approximately $2 million of acquisition costs. The Silver Assets
consist of Asarco's: (i) 50% interest in Silver Valley Resources Corporation
("SVR"); (ii) 100% interest in Empresa Minera Manquiri S.R.L., or any successor
("Manquiri"); (iii) 1.5 million shares and 500,000 warrants in Pan American; and
(iv) 100% interest in NPMC Inc. ("NPMC").

                             PRO FORMA ADJUSTMENTS

     (A) Purchase of Assets

<TABLE>
<CAPTION>
                                                          PRICE          TOTAL
                                      STOCK ISSUED      PER SHARE    (IN THOUSANDS)
                                    ----------------    ---------    --------------
<S>                                 <C>                 <C>          <C>
Purchase Price....................  7,125,000 shares      $4.52         $32,205
Transaction costs.................                                        2,000
                                                                        -------
                                                                         34,205
</TABLE>

     Allocated as follows:

<TABLE>
<CAPTION>
                                                              OTHER
                                         SVR      MANQUIRI    ASSETS     TOTAL
                                       -------    --------    ------    -------
                                                    (IN THOUSANDS)
<S>                                    <C>        <C>         <C>       <C>
                                       $ 2,800    $22,105     $9,300    $34,205
Calculation of excess:
  Net equity.........................   20,925      1,468      5,450
  Percent acquired...................       50%       100%       100%
                                       -------    -------     ------
Net assets acquired..................   10,462      1,468      5,450     17,380
Allocation of excess.................   (7,662)    20,637      3,850     16,825
                                       -------    -------     ------    -------
          Total purchase
            allocation...............  $ 2,800    $22,105     $9,300    $34,205
                                       =======    =======     ======    =======
</TABLE>

     Under the terms of the acquisition, the purchase price is 7,125,000 shares
of Common Stock at an average price of $4.52 per share (the average closing
price for a short period before and after the announcement of the proposed
acquisition), of $32,205,000 plus approximately $2 million in direct acquisition
expenses. Cash and cash equivalents have been reduced by the estimated direct
expenses of the acquisition.

     Eliminates 50% ownership interest in SVR and 100% ownership interest in the
other companies acquired.

     Adjusts assets to fair market value including the reduction of the carrying
amount of deferred royalty to zero.

     (B) Coeur now owns 50% of SVR. After the acquisition, Coeur will also own
the remaining 50% of SVR. The above adjustments represents the elimination of
one-half of SVR's net loss from continuing operations, as 100% of such loss is
included in SVR's historical financial statements. In addition, Coeur's current
excess cost over tangible net assets of SVR of $5,937,000 will be allocated to
operational mining properties.

     (C) Reflects adjustments to depletion amortization for excess cost over the
tangible assets acquired. The amount of depletion is calculated and amortized
over the estimated proven and probable reserves of each property. The pro forma
amortization expense for the year ended December 31, 1998 is $838,000,
calculated

                                       22
<PAGE>   26
                NOTES TO UNAUDITED PRO FORMA COMBINED CONDENSED
                      FINANCIAL STATEMENTS -- (CONTINUED)

as follows: $(7,662,000)/16 million ounces X 1,750,000 ounces. (The pro forma
expense for the quarter ended March 31, 1999 is $277,000, calculated as follows:
($7,662,000)/16 million ounces X 475,000 ounces.)

     (D) Historical and pro forma net income per common share, which have been
adjusted for preferred stock dividends, are computed by dividing adjusted net
income by the number of weighted average common and common equivalent shares
outstanding for the period. The shares used in the computation of net income per
share on a pro forma as adjusted basis also include common stock issued in
connection with this acquisition.

  Conforming and Reclassification Adjustments

     There were no material adjustments required to conform the accounting
policies of the Silver Assets. Certain amounts have been reclassified to conform
to Coeur's financial statement presentation.

                                       23
<PAGE>   27

                  DESCRIPTION OF SILVER ASSETS TO BE ACQUIRED

SILVER VALLEY RESOURCES

     Coeur will acquire the 50% interest in SVR which it does not already own.
SVR owns the Coeur and Galena Mines and the Caladay property situated in the
Coeur d'Alene Mining District of Idaho. It acquired those assets, effective
January 1, 1995, when Coeur and Asarco transferred their respective interests in
the Coeur and Galena Mines, and Coeur transferred its interest in the Caladay
property, to SVR. SVR was formed for the purpose of consolidating the ownership
and operation of the assets so transferred into a single entity. As a result of
the transfers, Coeur and Asarco each now own 50% of SVR.

     During 1995, SVR conducted a planned underground development program that
increased ore reserves at the Galena Mine. As a result of this program and
increased silver prices, a decision was made by SVR on February 8, 1996 to
reopen both the Galena and Coeur Mines which had been closed for several years.
Underground development and exploration activities continued during 1997 and
1998.

     SVR recommenced operations at the Coeur Mine in June 1996 and continued
mining existing reserves there through July 2, 1998, when operations were
terminated as planned. Production was resumed at the Galena Mine in May 1997 and
operations continue.

     SVR silver reserves in both the Galena and Coeur Mines have been expanded,
increasing 32% in 1995, 22% in 1996 and 13% in 1997. In 1998, ore reserves at
the Galena Mine increased 15%. SVR plans to continue exploratory and
developmental activities at the Coeur, Galena and Caladay Mines as well as at
several adjoining leased properties in the Coeur d'Alene Mining District with a
view to development of new silver reserves and resources.

  Galena Mine

     The Galena Mine property consists of approximately 1,100 acres lying
immediately west of the City of Wallace, Shoshone County, Idaho adjoining the
Coeur Mine's eastern boundary. The property consists of 52 patented mining
claims and 25 unpatented mining claims. The Galena Mine is primarily an
underground silver-copper mine, and is served by two vertical shafts.

     In July 1992, Asarco, which operated the Galena Mine, suspended operations
due to the then prevailing silver prices and placed the property on a care and
maintenance basis to conserve ore reserves. During July 1992, silver prices
averaged $4.31 per ounce. SVR resumed production at the Galena Mine in May 1997
after silver prices improved.

     Based on SVR's ore reserve estimate, proven and probable ore reserves as of
January 1, 1999, at the Galena Mine totaled 1.757 million tons, averaging 18.54
ounces of silver per ton. Included in the reserves are 348,000 tons of ore
containing 12.34% lead and 1.569 million tons of ore containing 0.56% copper.
The SVR reserve estimate is based on a minimum mining width of 4 to 4.5 feet
diluted to 5.0 feet minimum width for most silver-copper and silver-lead veins.
Cutoff grade is based on the cost of breaking and producing ore, but does not
include development costs and administrative overhead. The cutoff grade varies
from area-to-area within the mine due to changing silver-copper ratios of the
ore.

     SVR has also identified an additional 782,000 tons of mineralized material
which averages 8.26 ounces of silver per ton. Included in the mineralized
material are 262,000 tons containing 0.43% copper and 541,000 tons containing
5.74% lead.

                                       24
<PAGE>   28

     The following table sets forth information relating to total Galena Mine
production during the periods indicated.

<TABLE>
<CAPTION>
                                                                 EIGHT MONTHS        YEAR ENDED
                                                              ENDED DECEMBER 31,    DECEMBER 31,
                                                                     1997               1998
                                                              ------------------    ------------
<S>                                                           <C>                   <C>
Ore milled (tons)...........................................         80,012            176,304
Silver (ounces).............................................      1,456,201          3,260,363
Copper (pounds).............................................      1,070,954          2,234,374
</TABLE>

     The following table sets forth the costs of production per ounce of silver
(net of credit for copper byproduct) at the Galena Mine during the periods
indicated. Cash costs include mining, processing, direct administration costs
and smelter charges, but do not include exploration costs. SVR reduced its full
costs per ounce in 1998 by $.53, an 8.9% reduction from 1997.

<TABLE>
<CAPTION>
                                                                 EIGHT MONTHS        YEAR ENDED
                                                              ENDED DECEMBER 31,    DECEMBER 31,
                                                                     1997               1998
                                                              ------------------    ------------
<S>                                                           <C>                   <C>
Cash costs per ounce........................................        $4.74              $4.39
Depreciation, depletion and Amortization per ounce..........         1.24               1.06
                                                                    -----              -----
Total costs per ounce.......................................        $5.98              $5.45
                                                                    =====              =====
</TABLE>

     Total capital expenditures by SVR at the Galena Mine in 1998 were $3.6
million. These expenditures were used to provide additional mine development and
miscellaneous equipment. SVR plans approximately $2.7 million of mine
development and equipment expenditures at the Galena Mine during 1999.

     Activities at the Galena Mine during 1998 were concentrated on shaft
deepening and development activities, including exploration/development drilling
that tested both internal vein targets and several exploration targets located
on leased properties contiguous to the SVR holdings. Exploration results are
being assessed and will require further follow up.

  Coeur Mine

     The Coeur Mine is an underground silver mine located adjacent to the Galena
Mine. It consists of approximately 868 acres comprised of 38 patented mining
claims and four unpatented mining claims.

     Asarco, the operator of the Coeur Mine under an earlier joint venture
arrangement, suspended operations at the Coeur Mine in April 1991 due to then
prevailing silver prices and placed the property on a care and maintenance basis
to conserve ore reserves. Silver prices averaged $3.90 per ounce for April 1991.
SVR resumed production activities at the Coeur Mine in June 1996 and, as
planned, terminated operations there on July 2, 1998.

     The following table sets forth information, for the periods indicated,
relating to total Coeur Mine production.

<TABLE>
<CAPTION>
                                                          SIX MONTHS                     SIX MONTHS
                                                            ENDED         YEAR ENDED       ENDED
                                                         DECEMBER 31,    DECEMBER 31,     JUNE 30,
                                                             1996            1997           1998
                                                         ------------    ------------    ----------
<S>                                                      <C>             <C>             <C>
Ore milled (tons)......................................      78,067         110,579        21,968
Silver (ounces)........................................   1,666,534       1,978,513       261,266
Copper (pounds)........................................   1,407,771       1,621,345       174,414
</TABLE>

                                       25
<PAGE>   29

     The following table sets forth the costs of production per ounce of silver
(net of credit for copper by-product) at the Coeur Mine during the periods
indicated. Cash costs include mining, processing, direct administration costs
and smelter charges but do not include exploration costs.

<TABLE>
<CAPTION>
                                                        SIX MONTHS                     SEVEN MONTHS
                                                          ENDED         YEAR ENDED        ENDED
                                                       DECEMBER 31,    DECEMBER 31,      JULY 31,
                                                           1996            1997            1998
                                                       ------------    ------------    ------------
<S>                                                    <C>             <C>             <C>
Cash costs per ounce.................................     $3.18           $3.00           $5.34
Depreciation, depletion and amortization per ounce...       .79             .95            1.03
                                                          -----           -----           -----
Total costs per ounce................................     $3.97           $3.95           $6.37
                                                          =====           =====           =====
</TABLE>

The increase in cash cost per ounce in the 1998 period was primarily due to the
fact that, as planned, operations at the Coeur Mine were winding down and
terminated on July 2, 1998.

     Based on a SVR ore resource report, Coeur estimates the mineralized
material as of January 1, 1999 at the Coeur Mine totaled 370,000 tons averaging
14.53 ounces of silver per ton and 0.69% copper. Approximately 2,288 feet of
exploration drilling was completed at the Coeur in 1998.

     Caladay Property

     The Caladay property adjoins the Galena Mine. Prior to its acquisition by
the Company in 1991, approximately $32.5 million was expended on the property to
construct surface facilities, a 5,101 ft. deep shaft and associated underground
workings to explore the property. Based on SVR's analysis of existing Galena
Mine underground workings and drilling results on the Galena Property, the
Company believes that similar geologic conditions which exist at the Galena
extend into the Caladay below the level of the current Caladay workings. In
addition, the Caladay facilities may be used to benefit the Galena Mine
operations, including access, ventilation and additional safety features.

MANQUIRI

     Manquiri's principal asset is the San Bartolome project, an early stage
silver development property located near the city of Potosi, Bolivia, on the
flanks of Cerro Rico mountain. Cerro Rico has been a world class silver region
for many centuries, producing in excess of 1.5 billion ounces of silver. The San
Bartolome project consists of seven distinct silver-bearing gravel deposits, or
"sucu" deposits, which lend themselves to simple surface mining methods. These
sucu deposits were formed as a result of erosion of the silicified silver-rich
upper part of Cerro Rico.

     The mineral rights for the San Bartolome project are held through long-term
joint venture lease agreements with five independent mining cooperatives. At
present, 68 square kilometers of concessions (16,800 acres) are under lease. As
consideration for these leases, production from San Bartolome is subject to a
royalty of 1 1/2% payable to the cooperatives and 2 1/2% payable to the Bolivian
state mining company, Comibol. During the current exploration stage the
properties are subject to monthly lease and advance royalty payments totaling US
$20,500.

     The seven sucu deposits at San Bartolome essentially surround Cerro Rico
and are known as: Huachajchi, El Diablo, El Diablo East, Santa Rita, San
Antonio, Paleosucu and Potosina. Most of the exploration effort thus far has
been conducted on Huachajchi, and to a lesser extent, Santa Rita, El Diablo and
El Diablo East.

     Measured, indicated and inferred resource estimates prepared in March 1999
by The Winters Company, Coeur's independent mining consultants, indicate that
the San Bartolome property has an estimated total geologic resource of 105.6
million ounces of silver in the four sucu deposits tested, contained in 35.6
million tons of material, with an average silver grade of 3.1 ounces per ton.

     Preliminary metallurgical testwork indicates that the silver in the sucu
deposits is recoverable by cyanide leaching. The Company presently believes that
the San Bartolome resource is amenable to cyanidation

                                       26
<PAGE>   30

through heap leaching. Coeur has initiated tests to determine the extent to
which the material is amenable to heap leaching. Coeur understands that the heap
leaching process has been successfully employed in the immediate area of the San
Bartolome project on similar sucu material. Coeur believes that 70% of the
estimated total resource at the San Bartolome project will be converted to
proven and probable reserves within 12 to 18 months of Closing. Based upon the
exploration and engineering work completed to date, the San Bartolome project is
considered to have a high potential to be developed in a relatively short period
of time at a production rate of about 6 million ounces of silver per year.

     Assuming the Transaction is consummated, Coeur intends to implement and
carry out the following program for the first 12 months:

     - continue infill exploration and development of known deposits to improve
       mineral resource confidence and permit conversion to mineable reserves;

     - initiate exploration of the three untested sucu deposits;

     - perform metallurgical testing;

     - initiate and complete a feasibility study and conduct basic engineering;
       and

     - expand environmental baseline studies and initiate mine permitting
       process.

     Coeur plans to spend approximately $2 million for the first 12 months after
the consummation of the Transaction. Management's goal is to be in a position to
make a production decision within 12 months of the Closing Date, and to commence
commercial production in approximately two to two and one-half years following
consummation of the Transaction.

     The Republic of Bolivia has adopted laws and guidelines for environmental
permitting that are similar to those in effect in the United States and other
South American countries. A recently established State Council for the
Environment (CODEMA) has responsibility to define policy, approve plans and
programs, control regulatory activities and enforce compliance. The permitting
process requires a thorough study to determine the baseline condition of the
mining site and surrounding area, an environmental impact analysis, and proposed
mitigation measures to minimize and offset the environmental impact of mining
operations. Asarco has conducted several studies to date and has prepared an
environmental audit as part of the permitting process, which has not yet been
submitted to the regulatory authorities. Coeur will continue with the permitting
process and concurrently will commence feasibility study activities after the
Closing of the Transaction. Coeur does not believe that there will be any
significant environmental issues at San Bartolome.

     The San Bartolome project involves risks that are inherent in any mining
venture, as well as particular risks associated with the location of the
project. The resource estimates indicated by the geologic studies performed to
date are preliminary in nature and may differ materially after further
development and metallurgical testing is completed. Also, managing mining
projects in the high plateau areas of Bolivia, where Cerro Rico is located,
presents logistical challenges. The political and cultural differences of a
foreign country may also present challenges.

     In addition to the San Bartolome project, Manquiri holds two gold
exploration properties in the Potosi province. Geological mapping, trenching and
sampling have been complete on the Khory Huasi property, which is located 150
kilometers southwest of Potosi and drill targets have been defined. The Poconota
property is located near Khory Huasi, but is at an early stage of exploration.
Coeur has no present plans for the exploration of these properties.

PAN AMERICAN INTERESTS

     The Pan American interests to be acquired by Coeur consist of 1,000,000
shares of PASC Stock owned by Asarco, 500,000 shares of PASC Stock owned by NPMC
and the PASC Warrants to purchase 500,000 shares of Pan American common stock
also owned by NPMC. In addition, Coeur will acquire a 20% net earnings
life-of-mine royalty interest, owned by NPMC, in the Quiruvilca Mine in northern
Peru.

                                       27
<PAGE>   31

     Pan American is a Vancouver, Canada, based silver mining, development and
exploration company. Its assets include the Quiruvilca Mine in northern Peru
which produced 3.1 million ounces of silver in 1998, and the Dukat silver
development property in Russia. Pan American also has silver development
properties in Mexico and has silver exploration programs in Peru, Bolivia,
Russia and Canada.

     Pan American's common stock is traded on the Toronto Stock Exchange and the
NASDAQ National Market. There are no restrictions on the transfer or sale of the
1,500,000 shares to be acquired by Coeur. However, Coeur has no present
intention to sell the PASC Stock.

     In 1998, Pan American's common stock traded on the Toronto Stock Exchange
at a high of CDN $16.80, and a low of CDN $7.35, and in 1999 through July 12, at
a high of CDN $9.65 and a low of CDN $7.00. The last sale on July 12, 1999 was
at CDN $8.70. The average daily trading volume in 1999, through July 12, on the
Toronto Stock Exchange has been 21,275 shares. Based on current currency
exchange rates, one Canadian dollar is the equivalent of approximately 0.678
U.S. dollar.

     In 1998, Pan American's common stock traded on the NASDAQ National Market
at a high of US $11.63, and a low of US $4.81, and in 1999 through July 12, at a
high of US $6.44 and a low of US $4.50. The last sale on July 12, 1999 was at US
$5.94. The average daily trading volume in 1999, through July 12, on the NASDAQ
National Market has been 97,829 shares.

     In view of the number of shares of PASC Stock to be acquired by Coeur and
the current trading volume, any disposition of those shares in normal trading
could adversely affect the prices that might be obtained by Coeur. It is
possible that a block discount could be applied given the substantial overhang
if Coeur wished to sell. No representation can, of course, be made as to the
prices that Coeur might obtain upon the sale of any of its shares of the PASC
Stock.

     The PASC Warrants are exercisable for 500,000 shares of Pan American common
stock at a price of U.S. $5.17 per share. The PASC Warrants expire on December
31, 1999 and are not publicly traded securities. Coeur's intentions with respect
to the exercise of the PASC Warrants will depend on the relationship of the
exercise price and the market price for Pan American common stock, transaction
costs, restrictions on the sale of the shares issued upon an exercise of the
PASC Warrants, and other factors.

NPMC ROYALTY INTEREST

     NPMC owns a 20% net earnings life-of-mine royalty from Pan American with
respect to the Quiruvilca Mine. However, the royalty is calculated in such a
manner that Pan American has historically been able to allocate sufficient costs
to the mine so that the royalty payments have been deminimus. Coeur has placed
no value on the royalty for purposes of the Transaction.
                            ------------------------

     On July 16, 1999, Asarco announced that it entered into an agreement to
merge with Cyprus Amax Minerals Corporation ("Cyprus"). In that connection, it
should be noted that in 1993, Coeur purchased from a subsidiary of Cyprus all
the outstanding shares of Cyprus Gold New Zealand Limited, which owned an 80%
interest in the Golden Cross gold mine in New Zealand. As a result of ground
movement and instability which threatened the integrity of the Golden Cross mine
site, Coeur effected write-downs of its interest in that mine during 1996 and
1998 aggregating approximately $57.3 million and mining activities there were
curtailed and finally discontinued in 1998. In 1996, Coeur filed a complaint
against Cyprus in an Idaho District Court alleging violations by Cyprus of the
common law and of certain provisions of the Idaho and Colorado Securities Acts
in connection with Coeur's acquisition of Cyprus Gold New Zealand Limited. A
trial in this proceeding has been scheduled to commence on October 18, 1999.
While this matter remains unresolved, the two members of the Board of Directors
of Coeur to which Asarco will be entitled upon consummation of the Transaction
Agreement will not participate in any Board discussions or decision-making
relating to the matter.
                            ------------------------

     THE BOARD OF DIRECTORS RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE PROPOSED
ISSUANCE OF COMMON STOCK IN EXCHANGE FOR THE SILVER ASSETS OF ASARCO.

                                       28
<PAGE>   32

                PROPOSED AMENDMENTS TO ARTICLES OF INCORPORATION
                            (PROPOSALS 3 THROUGH 7)

     On March 9, 1999, the Company's Board of Directors approved the Restated
and Amended Articles of Incorporation of the Company that are set forth as
Exhibit E to this Proxy Statement. The Board took that action for two reasons.
First, the Idaho Business Corporation Act was substantially amended, effective
July 1, 1997, (the "New Idaho Act") and the Company's current Articles of
Incorporation contain provisions that are inconsistent with the New Idaho Act,
thereby rendering amendments appropriate. Second, the proposed restated Articles
consolidate and simplify the numerous amendments and superseded documents that
have been filed since 1928.

     In addition to approving the Restated and Amended Articles of
Incorporation, the Board directed management to seek shareholder approval at the
Annual Meeting of those amendments that are required to be approved by
shareholders under the New Idaho Act. That Act requires that the amendments to
the articles be approved by the holders of a majority of the shares of Common
Stock and MARCS, voting as a single class, in person or by proxy, at the Annual
Meeting. In addition, Proposal No. 4 requires the approval of the holders of a
majority of the outstanding MARCS. The proposed amendments will become effective
upon the filing of the Restated and Amended Articles of Incorporation with the
Idaho Secretary of State, which the Company plans to do promptly after the
Annual Meeting.

     Exhibit D to this Proxy Statement sets forth the current Articles of
Incorporation of the Company, as restated to set forth the existing provisions
in one updated document. Exhibit E to this Proxy Statement sets forth the
proposed Restated and Amended Articles of Incorporation. Exhibit E is marked to
identify the changes made in comparison to Exhibit D. Shareholders are being
asked at the Annual Meeting to separately vote on each of the proposed
amendments containing substantive changes to the current articles and also to
vote on the remaining proposed amendments which are not substantive in nature
and as to which there are no reasonable grounds for disapproval. (For example,
the proposed amendment to Article III of the Restated and Amended Articles of
Incorporation sets forth the current address of the Company's headquarters in
Coeur d'Alene, Idaho, rather than its prior address in Wallace, Idaho, where it
was headquartered when the Company was incorporated.)

     The Restated and Amended Articles of Incorporation that are set forth in
Exhibit B contain fewer provisions than are contained in the current Articles of
Incorporation that are set forth in a restated form in Exhibit D because of the
deletion of five of the existing articles that are no longer called for by the
New Idaho Act. The following list should be of assistance in identifying the
changes made in the proposed Restated and Amended Articles of Incorporation:

<TABLE>
<CAPTION>
EXISTING      NEW
 ARTICLE    ARTICLE
NUMBER IN  NUMBER IN
EXHIBIT D  EXHIBIT E                          NATURE OF CHANGE
- ---------  ---------                          ----------------
<C>        <C>          <S>
    I          I        No change
   II         --        Deleted
   III        III       Non-substantive change: New street address of Company's
                        registered office and name of registered agent required by
                        the New Idaho Act
   IV         --        Deleted
    V         --        Deleted
   VI         II        Substantive change: Increase in authorized number of shares
                        of Common and Preferred Stock
   VII        IV        Non-substantive change: Name and address of each of the
                        Company's original incorporators as called for by the New
                        Idaho Act
  VIII        --        Deleted
   IX          V        No change
    X         VI        Substantive change: Change language regarding the limitation
                        of director liability to conform with the New Idaho Act
   XI         --        Deleted
   --         VII       Substantive change: New provision relating to director
                        indemnification as permitted under the New Idaho Act
</TABLE>

                                       29
<PAGE>   33

     The following five proposals to be voted on by shareholders are described
below: (i) the amendment of Article II of the proposed Restated and Amended
Articles of Incorporation increasing the authorized number of shares of the
Company's Common Stock; (ii) the Amendment of Article II of the proposed
Restated and Amended Articles of Incorporation increasing the authorized number
of shares of the Company's Preferred Stock, (iii) the amendment of Article VI of
the proposed Restated and Amended Articles of Incorporation changing the
language relating to the limitation of director liability to conform with the
New Idaho Act; (iv) the adoption of Article VII of the proposed Restated and
Amended Articles of Incorporation setting forth a new provision relating to the
indemnification of directors that is permitted under the New Idaho Act; and (v)
amendments to Articles III and IV of the proposed Restated and Amended Articles
of Incorporation setting forth non-substantive changes relating to the address
of the Company's registered office and registered agent and the names and
addresses of the Company's original incorporators. No change has been proposed
to Articles I and V of the Restated and Amended Articles of Incorporation.

                           PROPOSALS NO. 3 AND NO. 4

PROPOSED AMENDMENTS TO ARTICLE II OF THE RESTATED AND AMENDED ARTICLES OF
INCORPORATION INCREASING THE NUMBER OF AUTHORIZED SHARES OF COMMON STOCK
(PROPOSAL NO. 3) AND PREFERRED STOCK (PROPOSAL NO. 4)

     Proposal No. 3 calls for an amendment to Article II of the proposed
Restated and Amended Articles of Incorporation increasing the number of
authorized shares of the Company's Common Stock from 60 million to 125 million
shares. Proposal No. 4 calls for an amendment to Article II of the proposed
Restated and Amended Articles of Incorporation increasing the number of
authorized shares of Preferred Stock of the Company from 10 million to 20
million shares.

     Of the 60 million currently authorized shares of Common Stock,
approximately 21.9 million shares are outstanding. Approximately 20.5 million
shares have been reserved for possible issuance for: (i) the conversion of the
MARCs, (ii) the conversion of outstanding Convertible Subordinated Debentures
and (iii) the Company's stock option and incentive plans. This leaves
approximately 17.6 million unissued, unreserved, authorized shares of Common
Stock available for future issuance. Of the 10 million currently authorized
shares of Preferred Stock, approximately 7.08 million shares of MARCs are
outstanding and approximately 443,000 shares of Series A Junior Preferred Stock
are reserved for issuance in the event of the exercise of rights under the
shareholder rights plan attaching to the shares of Common Stock. This leaves
approximately 2.48 million unissued, unreserved, authorized shares of Preferred
Stock available for issuance in the future.

     COMMON STOCK.  The Board of Directors believes that the proposed increase
in the number of authorized shares of Common Stock is essential to provide for
the Company's future growth and financial stability and is in the best interests
of the Company and its shareholders. The Board of Directors believes that the
Company should have sufficient authorized but unissued shares of Common Stock to
allow for future financing and recapitalization transactions, acquisitions of
other mining companies or properties, implementation of stock option and other
employee benefit plans and other proper business purposes. Certain circumstances
require prompt attention which may not allow the necessary time to seek
shareholder approval to authorize additional shares. The Board of Directors
believes that it is important for it to have the flexibility to act promptly in
the best interests of shareholders in connection with such circumstances. As
discussed above under Proposal No. 2, the Company proposes to issue 7,125,000
shares of the Company's Common Stock in exchange for certain assets of another
corporation. Other than as discussed under Proposal No. 2 above, no agreements
or understandings have been reached with respect to any issuances of Common
Stock, but the Board of Directors believes it is essential that the proposed
increase in the number of authorized shares of Common Stock be approved so that
it can act promptly in the best interests of shareholders.

     PREFERRED STOCK.  The Board of Directors also believes that the proposed
increase in the number of authorized shares of Preferred Stock is in the best
interests of the Company and its shareholders. The Board of Directors believes
that the Company should have sufficient authorized but unissued shares of
Preferred Stock

                                       30
<PAGE>   34

for issuance in connection with possible future financing transactions and
acquisitions of other mining properties. Certain circumstances require prompt
attention which may not allow the necessary time to seek shareholder approval to
authorize additional shares. For example, if the owner of a mining property that
the Company desires to acquire would be willing to receive capital stock in
exchange for the property but insists upon a fixed return on its investment, a
new class of Preferred Stock with the appropriate dividend rate could be
established. The use of a new class of Preferred Stock or convertible Preferred
Stock would be more advantageous to the Company than a debt or convertible debt
security that would require a fixed maturity and repayment date. The current
number of authorized shares of Preferred Stock available for any such purpose is
very low and would probably not permit the establishment of the necessary new
class of Preferred Stock to complete a favorable transaction.

     The additional shares of Common Stock and Preferred Stock sought by the
proposed amendments would be available for issuance without further action by
shareholders, unless such action would be required by applicable law or the
rules of the New York Stock Exchange. Generally, the New York Stock Exchange
rules require shareholder approval of proposed issuances of additional shares
which would result in an increase of 20% or more in the number of shares of
Common Stock outstanding before any such proposed issuance, subject to
exemptions for certain public and private offerings for cash.

     Although the Board of Directors' purpose for seeking increases in the
number of authorized shares of Common and Preferred Stock is not intended for
anti-takeover purposes, it should be noted that the unauthorized but unissued
shares of Common Stock or Preferred Stock, if issued, could be used by incumbent
management to make more difficult and thereby discourage an attempt to acquire
control of the Company even though shareholders of the Company might deem such
an acquisition of the Company desirable. For example, the shares could be
privately placed with purchasers who might support the Board of Directors in
opposing a hostile takeover bid. The issuance of the new shares could also be
used to dilute the stock ownership and voting power of a third party seeking to
remove directors, replace incumbent directors, accomplish certain business
combinations or alter or amend provisions of the Company's Articles of
Incorporation. To the extent that it would impede any such attempts, the
issuance of additional shares of Common Stock or Preferred Stock following
effectiveness of the proposed amendments could potentially serve to perpetuate
existing management. The potential for the use of additional authorized shares
of Preferred Stock for anti-takeover purposes would be greater than in the case
of the Common Stock, because the Board of Directors would have the authority to
create one or more classes of Preferred Stock with such special rights
(including voting rights), preferences, restrictions, qualifications and
limitations as the Board of Directors could designate. As stated above, however,
the Company is not proposing the increases in authorized capital stock for
anti-takeover purposes.

     THE BOARD OF DIRECTORS RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE PROPOSED
INCREASE IN THE AUTHORIZED NUMBER OF SHARES OF COMMON STOCK FROM 60 MILLION TO
125 MILLION SHARES.

     THE BOARD OF DIRECTORS ALSO RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE
PROPOSED INCREASE IN THE AUTHORIZED NUMBER OF SHARES OF PREFERRED STOCK FROM 10
MILLION TO 20 MILLION SHARES.

                                 PROPOSAL NO. 5

PROPOSED AMENDMENT OF ARTICLE VI OF THE RESTATED AND AMENDED ARTICLES OF
INCORPORATION RELATING TO THE LIMITATION OF DIRECTOR LIABILITY

     This proposal seeks to implement the permissible limitation of director
liability set forth in the New Idaho Act. Article VI of the proposed Restated
and Amended Articles of Incorporation, which limits the liability of a director
to the Company or its shareholders for monetary damages under the circumstances
enumerated in the New Idaho Act, is proposed to be amended to set forth the same
language that is used in that Act. The purpose of the provision is to limit, to
the extent permitted under the Idaho statute, the liability of a director to the
Company or its shareholders for monetary damages.

                                       31
<PAGE>   35

     Under the Idaho Business Corporation Act that was in effect prior to the
effectiveness of the New Idaho Act (the "Old Idaho Act"), as reflected in
Article X of Exhibit D, the elimination of personal liability related only to
breaches of fiduciary duty and provided that the liability would not be
eliminated for (i) any breach of the director's duty of loyalty to the Company
or its shareholders, (ii) acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) the making of
unlawful dividends or distributions of assets to shareholders in violation of
the Old Idaho Act, or (iv) any transaction from which the director derived an
improper personal benefit. Under the New Idaho Act, as reflected in Article VI
of Exhibit E, the elimination of personal liability is applicable to any action
taken, or any failure to take any action, as a director, except that such
liability will not be eliminated for (i) the amount of a financial benefit
received by a director to which he is not entitled, (ii) intentional infliction
of harm on the Company or the shareholders, (iii) the making of unlawful
dividends or distributions to shareholders in violation of the New Idaho Act, or
(iv) an intentional violation of criminal law. Existing Article X of the current
Articles of Incorporation in Exhibit A uses the precise language set forth in
the Old Idaho Act provision, while Article VI of the proposed Restated and
Amended Articles of Incorporation in Exhibit B uses the precise language set
forth in the New Idaho Act provision.

     The current article eliminates director liability, subject to the
enumerated exceptions, relating only to breaches of fiduciary duty, while the
proposed new article eliminates director liability, subject to the enumerated
exceptions, for director liability relating to any action taken or failed to be
taken, regardless of the nature of the duty involved. The articles enumerated
under the old and proposed new provisions are substantially similar; provided,
however, that the proposed new article does not expressly prohibit liability
elimination for breach of a director's duty of loyalty.

     In order for the article relating to the permissible limitation of
liability of directors to be legally enforceable, the Company believes that the
language used in the provision should be the same as the language set forth in
the applicable provision of the New Idaho Act.

     THE BOARD OF DIRECTORS RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE AMENDMENT
OF ARTICLE VI OF THE PROPOSED RESTATED AND AMENDED ARTICLES OF INCORPORATION
REVISING THE LANGUAGE RELATING TO THE LIMITATION OF DIRECTOR LIABILITY.

                                 PROPOSAL NO. 6

PROPOSED APPROVAL OF ARTICLE VII OF THE RESTATED AND AMENDED ARTICLES OF
INCORPORATION RELATING TO DIRECTOR INDEMNIFICATION

     This proposal provides for the mandatory indemnification of directors, as
permitted under the New Idaho Act, in order to enhance the Company's ability to
attract and retain qualified members of its Board. Proposed new Article VII of
the Restated and Amended Articles of Incorporation in Exhibit E provides for the
Company's obligatory indemnification of directors as permitted under the New
Idaho Act. Under the Old Idaho Act, a corporation's Articles of Incorporation
were not expressly permitted to include such a provision. However, the New Idaho
Act specifically permits inclusion of a provision authorizing mandatory
indemnification of a director, except with respect to liability for (i) receipt
of a financial benefit to which the director is not entitled, (ii) an
intentional infliction of harm on the corporation or its shareholders, (iii) an
unlawful dividend or distribution of assets to shareholders in violation of the
New Idaho Act, or (iv) an intentional violation of criminal law. Inclusion of
the proposed new provision in the Restated and Amended Articles of Incorporation
assures that directors of the Company will be entitled to the maximum
indemnification rights permitted under Idaho law.

     The New Idaho Act permits, but does not require, a corporation to indemnify
its directors against liability in a proceeding if (i) he conducted himself in
good faith; (ii) he reasonably believed, in the case of conduct in his official
capacity, that his conduct was in the best interest of the corporation, and in
all cases, that his conduct was at least not opposed to the best interest of the
corporation; and (iii) in the case of any criminal proceeding, he had not
reasonable cause to believe his conduct was unlawful. That indemnification
provision is

                                       32
<PAGE>   36

substantially similar to that provided under the Old Idaho Act; provided,
however, that the New Idaho Act specifically authorizes a corporation to make
obligatory the permissive indemnification provisions in advance of the conduct
giving rise to the request for assistance. The Board of Directors believes that
the proposed provision authorizing mandatory indemnification, subject to the
enumerated exceptions, in accordance with the New Idaho Act would enhance the
Company's ability to attract and retain qualified individuals to serve as
directors of the Company.

     THE BOARD OF DIRECTORS RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE ADOPTION
OF ARTICLE VII OF THE RESTATED AND AMENDED ARTICLES OF INCORPORATION OF THE
COMPANY.

                                 PROPOSAL NO. 7

PROPOSED APPROVAL OF ARTICLES III AND IV OF THE RESTATED AND AMENDED ARTICLES OF
INCORPORATION SETTING FORTH NON-SUBSTANTIVE CHANGES

     The above three proposals relate to Articles II, VI and VII of the proposed
Restated and Amended Articles of Incorporation of the Company. Articles I and V
of the proposed Restated and Amended Articles of Incorporation contain no change
from the comparable provisions of the existing Articles of Incorporation (except
that the number of Article V of the proposed Restated and Amended Articles of
Incorporation is numbered Article IX in the current Articles of Incorporation).
The remaining two provisions of the proposed Restated and Amended Articles of
Incorporation, which are Articles III and IV, involve changes that are not
substantive in nature and with respect to which there are no reasonable grounds
for disapproval. Accordingly, the proposed amendments to both provisions are
being presented to shareholders for their approval in one proposal.

     Article III of the proposed Restated and Amended Articles of Incorporation
sets forth the new street address of the Company's registered office and the
name of its registered agent as called for by the New Idaho Act. Article IV of
the proposed Restated and Amended Articles of Incorporation sets forth the name
and address of each of the Company's original incorporators as called for the
New Idaho Act.

     THE BOARD OF DIRECTORS RECOMMENDS THAT SHAREHOLDERS VOTE FOR THE PROPOSED
AMENDMENTS TO ARTICLES III AND IV OF THE RESTATED AND AMENDED ARTICLES OF
INCORPORATION OF THE COMPANY SETTING FORTH NON-SUBSTANTIVE CHANGES CALLED FOR BY
THE NEW IDAHO ACT.

                                       33
<PAGE>   37

                                SHARE OWNERSHIP

     The following table sets forth information, as of July 9, 1999, concerning
the beneficial ownership of the Company's Common Stock by shareholders known by
the Company to be the beneficial owner of more than 5% of the Company's
outstanding shares of Common Stock or MARCS, by each of the nominees for
election as directors, and by all directors/nominees and executive officers of
the Company as a group:

<TABLE>
<CAPTION>
                                                  COMMON STOCK                        MARCS               PERCENT
                                          -----------------------------    ---------------------------      OF
                                             SHARES                           SHARES                       TOTAL
                                          BENEFICIALLY      PERCENT OF     BENEFICIALLY    PERCENT OF     VOTING
                                             OWNED          OUTSTANDING       OWNED        OUTSTANDING     POWER
                                          ------------      -----------    ------------    -----------    -------
<S>                                       <C>               <C>            <C>             <C>            <C>
Franklin Resources, Inc.(1).............   1,622,108           7.41%          695,000          9.82        7.99%
MacKay-Shields Financial
  Corporation(2)........................   1,155,970           5.28         1,203,716         17.00        8.14
Ryback Management Corp.(3)..............   1,084,538           4.95         1,313,000         18.55        8.27
Dennis E. Wheeler.......................     205,460(4)(5)      .94                --            --         .71
Joseph C. Bennett.......................       5,851(4)(5)        *                --            --           *
James J. Curran.........................      20,350(4)(5)      .10                --            --           *
James A. McClure........................       3,201(4)(5)        *                --            --           *
Cecil D. Andrus.........................       2,954(5)           *                --            --           *
John H. Robinson........................       1,049(5)           *                --            --           *
Robert E. Mellor........................         100              *                --            --           *
Timothy R. Winterer.....................       1,000(4)           *                --            --           *
All executive officers and nominees for
  director as a group (15 persons)......     263,730(5)        1.20                --            --         .91
</TABLE>

- ---------------
(*) Holding constitutes less than .10% of the outstanding shares.

(1) Franklin Resources, Inc. is an investment advisory firm that serves as
    investment advisor to several investment companies that own the
    above-reported shares. Its address is 777 Mariners Island Blvd., P.O. Box
    7777, San Mateo, CA 94403-7777. Of the above shares of Common Stock, 574,070
    shares may be acquired upon the conversion of MARCS, 39,108 shares may be
    acquired upon the conversion of the Company's 6% Convertible Subordinated
    Debentures Due 2002 and 1,800,930 shares may be acquired upon conversion of
    the Company's 6 3/8% Convertible Subordinated Debentures Due 2004.

(2) MacKay-Shields Financial Corporation is an investment advisory firm. Its
    address is 9 West 57th Street, New York, NY 10019. Of the above shares of
    Common Stock, 994,270 shares may be acquired upon the conversion of MARCS.

(3) Ryback Management Corporation is an investment advisory firm. Its address is
    7711 Carondelet Ave., Suite 700, St. Louis, MO 63105. All of the shares of
    Common Stock reported above may be acquired upon conversion of MARCS.

(4) Individual shares investment and voting powers over certain of his shares
    with his wife. The other directors have sole investment and voting power
    over their shares.

(5) Holding includes the following shares which may be acquired upon the
    exercise of exercisable options outstanding under the Company's 1989
    Long-Term Incentive Plan or its 1995 Non-Employee Directors' Stock Option
    Plan: Dennis E. Wheeler -- 156,589 shares; Joseph C. Bennett -- 2,851
    shares; James J. Curran -- 20,250 shares; James A. McClure -- 2,851 shares;
    Cecil D. Andrus -- 2,854 shares; John H. Robinson -- 949 shares; and all
    executive officers and directors as a group -- 205,462 shares.

                        COMPENSATION AND RELATED MATTERS

HISTORY AND OBJECTIVES OF THE COMPANY'S EXECUTIVE COMPENSATION PROGRAM

     The Company's Executive Compensation Program (the "Program") was approved
by the shareholders in 1989. Hewitt Associates, a leading, independent executive
compensation consulting firm has rendered advice since the original plan was
approved by shareholders on the structure of an executive compensation program

                                       34
<PAGE>   38

which provides incentives to executive officers to meet short-term and long-term
objectives and attract, retain and motivate key executives that significantly
affect Company performance. During 1995, the Program was reviewed by Towers
Perrins, an independent executive compensation firm, and Hewitt Associates. As a
result, the Compensation Committee revised the Program to remain competitive
with mining industry peer companies and to align even further the financial
incentives of management with the shareholders' interests. The Company believes
the Program is structured to motivate the key executives to best serve the
shareholders by conducting business in a manner that enhances shareholder value.

COMPENSATION COMMITTEE

     The Company has a Compensation Committee composed entirely of outside
directors. The Committee works with the independent consultants and with the
Chief Executive Officer to assure that the Program meets the objectives set
forth above, and is consistent with other plans in the mining industry. In
addition, the Compensation Committee meets annually to set executive
compensation for the year, to review recommendations of the independent
consultant and to recommend compensation to the Board of Directors. The
selection of officers receiving grants of stock options and awards of stock
under the Program, and decisions concerning the timing, pricing and amount of
such grants and awards, are made by the Compensation Committee. The Board makes
the final decision regarding all other elements of executive compensation,
including executives salaries.

ELEMENTS OF THE PROGRAM

     The Program consists of three basic elements: 1) base salary, 2) annual
incentive compensation, and 3) long-term incentive compensation. The Program is
performance based. For the year 1998, 75% of each executive's annual incentive
compensation was determined by the Company's overall performance relative to
predetermined goals established by the Board of Directors, and the remaining 25%
was determined by the executive's performance relative to his predetermined
goals. Goals of the Chief Executive Officer are set and reviewed by the
Compensation Committee which makes recommendations to the Board of Directors.
Goals of other executives are set by the Chief Executive Officer, reviewed by
the Compensation Committee and approved by the Board of Directors. Fifty percent
of each executive's long-term incentive compensation is based upon the Company's
total return to shareholders compared to a mining industry peer group and the
remaining 50% consists of stock options which align the executive's compensation
with shareholder interests.

COMPENSATION PROGRAM SUMMARY

     Under the Program, base salary and annual incentives are targeted at
approximately the 50th percentile of that reported for other companies in the
industry on a size-adjusted basis. The total compensation opportunity (including
long-term incentives) is targeted at the 75th percentile, based on stated
performance objectives. During 1998, Hewitt Associates reviewed executive
compensation and the target levels. The compensation of the Company's executive
officers is also linked to the Company's financial performance as well as the
individual officer's performance. As more fully discussed below under
"Compensation Committee Report," annual incentive compensation awards under the
Annual Incentive Plan (the "AIP") are based upon target award levels expressed
as a percentage of base salaries, established at the beginning of each year for
participating executives, and vary depending upon the individual's level of
responsibility and impact on overall Company performance. In 1998, 75% of the
AIP target award value was based on financial performance of the Company and 25%
was based on the individual officer's performance. The Program's Long-Term
Incentive Plan (the "LTIP") is based upon a four-year performance period. The
Program's long-term incentives include options granted under the LTIP and
performance shares (payable in shares of Common Stock and cash after a four-year
performance period) granted under the Company's Long-Term Performance Share Plan
(the "LTPSP"). The long-term compensation opportunities associated with options
that vest at a rate of 25% a year and shares of Common Stock that are issued
after a four-year period are directly related to the market value of the
Company's Common Stock. Long-term incentive awards paid under the LTPSP reward
long-term shareholder value enhancement relative to industry competitors over a
four-year performance period. In 1998, all long-term incentive awards under the
LTIP and LTPSP directly related to Company performance.

                                       35
<PAGE>   39

     As of July 9, 1999, a balance of 261,189 shares of the 857,000 shares of
Common Stock authorized under the program since 1989 remained available to
underlie awards that may be granted in the future under the Program. Options for
a total of 54,920 shares were granted to all participants in the Program in
1998.

     The total annual incentive awards paid to the Company's Chief Executive
Officer and the other four highest paid executive officers of the Company
employed at the end of the year were $404,878 in 1998 compared to $676,938 in
1997 and their total annual compensation was $1,025,706 in 1998 compared to
$1,072,353 in 1997.

     The following Summary Compensation Table sets forth the annual salary,
annual bonus (including cash and stock) and long-term compensation (including
stock awards, options granted and long-term incentive cash payments) earned by
the Company's Chief Executive Officer and the other four highest paid executive
officers of the Company employed at the end of the year for services rendered
during each of the last three years.

                           SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
                                                                                 LONG-TERM COMPENSATION
                                                                           -----------------------------------
                                                                                    AWARDS
                                             ANNUAL COMPENSATION           -------------------------   PAYOUTS
                                     -----------------------------------                    SHARES     -------
                                                            OTHER ANNUAL   COMMON STOCK   UNDERLYING    LTIP      ALL OTHER
                                      SALARY      BONUS     COMPENSATION     AWARD(S)      OPTIONS     PAYOUTS   COMPENSATION
NAME AND PRINCIPAL POSITION   YEAR     ($)      ($)(1)(2)       ($)            $(3)         (#)(4)     ($)(5)       ($)(6)
- ---------------------------   ----   --------   ---------   ------------   ------------   ----------   -------   ------------
<S>                           <C>    <C>        <C>         <C>            <C>            <C>          <C>       <C>
Dennis E. Wheeler...........  1998   $407,638   $204,645            --             --       42,569          --      48,004
  Chairman, President &       1997    394,417    330,472            --          3,852      119,984     $22,952      38,005
  Chief Executive Officer     1996    378,710    145,304            --             --       32,068      64,391      39,739
Robert Martinez(7)..........  1998    208,243     81,555            --             --       16,735          --      19,472
  Senior Vice-President --    1997    155,433     85,913            --            474       15,485       2,825      14,024
  Chief Operating Officer     1996    132,823     23,730            --             --        2,604       9,510      13,955
Robert T. Richins(8)........  1998    143,179     40,996            --             --        3,739          --      13,123
  Vice President --           1997     86,500     68,136            --             --        1,755          --         358
  Environmental &             1996         --         --            --             --           --          --          --
  Governmental Affairs
James K. Duff(9)............  1998    138,921     32,715            --             --        3,268          --      14,337
  Vice President --           1997    130,000     53,243            --             --        7,462          --      11,893
  Business Development        1996    111,600     19,491            --             --        1,950          --      10,674
Paul B. Valenti (10)........  1998    127,725     44,967            --             --        5,139          --      11,446
  Vice
    President -- Operations   1997     36,692     17,297            --             --        2,169          --          --
                              1996         --         --            --             --           --          --          --
</TABLE>

- ---------------
 (1) Annual incentive payments under the AIP are based upon target award levels
     established by the Compensation Committee of the Company's Board of
     Directors (the "Committee") at the beginning of each annual performance
     period and vary depending upon each participant's responsibilities and base
     salary. Awards under the AIP are paid after the annual performance period
     and vary from 0% to 200% of the targets based on actual performance.
     Commencing in 1996, 75% of the award value is based on overall Company
     financial performance and 25% is based on the participant's individual
     performance. Company financial objectives underlying the measurement of
     Company performance include both total asset growth and cash flow return on
     total assets. The amounts reported above for 1996, 1997 and 1998 were paid
     in March 1997, March 1998 and March 1999, respectively.

 (2) Does not report perquisites amounting to less than the lesser of $50,000 or
     10% of total salary and bonus.

 (3) Shares of Common Stock awarded under the LTPSP are issued upon completion
     of a four-year performance period after the date of grant. Prior to 1993,
     the Program provided for annual awards of restricted stock that vested over
     a four-year period. Commencing in 1993, awards are paid in shares of Common
     Stock and cash in amounts that are not determinable until completion of a
     four-year award cycle. The aggregate number and market value (based on the
     $4.625 per share closing price of the shares on the New York Stock Exchange
     on December 31, 1998) of the restricted shares of Common Stock granted
     pursuant to the LTPSP prior to 1993 and held by the above executive
     officers at

                                       36
<PAGE>   40

     December 31, 1998 were as follows: Dennis E. Wheeler -- 15,445 shares
     ($71,433) and Robert Martinez -- 2,011 shares ($9,301). Dividends on
     restricted shares are remitted to each executive as paid by the Company.

 (4) Reports the number of shares underlying nonqualified options and incentive
     stock options granted under the LTIP with respect to each of the respective
     years. The options granted with respect to 1998 performance were granted in
     March 1999. The options granted with respect to 1997 performance include
     (i) a grant of options in July 1997 in recognition of the fact that
     historical cash compensation had fallen below industry norms, (ii) the
     customary grant of options in March 1998 and (iii) a grant of options in
     September 1998.

 (5) Reports cash payouts (not awards) under the LTIP. Payments are made under
     the LTIP after the end of the four-year performance period after award. The
     above reported payments relate to awards made in 1995 and are based on the
     performance period ending December 31, 1998. See note 2 to the Long-Term
     Incentive Plan Awards Table below for additional information regarding the
     LTIP.

 (6) Includes the Company's contributions to its Defined Contribution and 401K
     Retirement Plan (the "Retirement Plan") and amounts credited to the
     Company's Supplemental Retirement Plan (the "Supplemental Retirement
     Plan"). All full-time employees participate in the Retirement Plan. The
     amount of the Company's annual contribution is determined annually by the
     Board of Directors and may not exceed 15% of the participants' aggregate
     compensation; however for the years 1996, 1997 and 1998, the contribution
     was 5%. In addition, the Retirement Plan provides for an Employee Savings
     Plan which allows each employee to contribute up to 10% of compensation,
     subject to a maximum contribution of $10,000. The Company contributes an
     amount equal to 50% of the first 6% of any such contributed amount. Accrued
     benefits under the Retirement Plan begin vesting after one year of
     employment and are fully vested after five years of employment. Retirement
     benefits under the Retirement Plan are based on a participant's investment
     fund account upon retirement, the participant's age and the form of benefit
     payment elected by the participant. The Company maintains the Supplemental
     Retirement Plan for its executive officers. Under the Supplemental
     Retirement Plan, an amount is accrued that equals the portion of the
     contribution to the Company's Retirement Plan that is restricted due to
     restrictions under ERISA. In 1998, Messrs. Wheeler, Martinez, Richins, Duff
     and Valenti were credited with Company contributions of $12,800, $12,800,
     $10,566, $12,800, and $11,446, respectively, under the Retirement Plan. In
     1998, Messrs. Wheeler, Martinez, Richins and Duff were credited with
     $30,021, $6,562, $2,557 and $1,537, respectively, pursuant to the
     Supplemental Retirement Plan. The amounts of all other compensation
     reported in the above table also include "above-market" interest earnings
     on deferred compensation that is accrued under the Company's Supplemental
     Retirement Plan. "Above-market" interest earnings on deferred compensation
     is the excess of such interest over 120% of the applicable federal
     long-term rate, with compounding, as prescribed under the Internal Revenue
     Code. In 1998, the amounts of above-market interest earnings accrued for
     the benefit of Messrs. Wheeler and Martinez amounted to $5,183 and $110,
     respectively.

 (7) Prior to his appointment as Senior Vice President -- Chief Operating
     Officer on May 15, 1998, Mr. Martinez served as Vice
     President -- Operations from April 1 1997 to May 15, 1998, as Vice
     President -- Engineering, Operational Services and South American
     Operations of the Company from January 1, 1997 to March 30, 1997, and as
     Vice President and General Manager of the Company's subsidiary, Rochester
     Coeur, Inc., from August 13, 1988 to December 31, 1996.

 (8) Prior to rejoining Coeur d'Alene Mines Corporation as Vice
     President -- Environmental Services and Governmental Affairs in April 1995,
     Mr. Richins was a consultant for the Company. He had previously held that
     position until 1994, when he formed his own consulting firm. He initially
     joined Coeur d'Alene Mines in 1986 and was the head of environmental
     services.

 (9) Prior to his appointment as Vice President -- Business Development in 1996,
     Mr. Duff held the position of Director of New Business Development. He has
     been with the Company since March 1990.

(10) Prior to his appointment as Vice President -- Operations on May 29, 1998,
     Mr. Valenti served as Vice President -- Engineering Services since
     September 1997. Prior to September 1997, Mr. Valenti was Vice President of
     Operations and Development for USMX, Inc.

                                       37
<PAGE>   41

     The following Option Grants Table sets forth, for each of the named
executive officers, information regarding individual grants of options granted
under the LTIP in March 1999 for services rendered in 1998 and their potential
realizable values. Information regarding individual option grants includes the
number of options granted, the percentage of total grants to employees
represented by each grant, the per-share exercise price and the expiration date.
The potential realizable value of the options are based on assumed annual 0%, 5%
and 10% rates of stock price appreciation over the term of the option. Also set
forth is the amount of the increases in the value of all of the Company's
outstanding shares of Common Stock that would be realized in the event of such
annual rates of stock price appreciation.

                              OPTION GRANTS TABLE

<TABLE>
<CAPTION>
                                             INDIVIDUAL GRANTS                        POTENTIAL REALIZABLE VALUE AT
                               ---------------------------------------------             ASSUMED ANNUAL RATES OF
                                  NUMBER OF        % OF TOTAL                           STOCK PRICE APPRECIATION
                                   SHARES        OPTIONS GRANTED                           FOR OPTION TERM(4)
                                 UNDERLYING       TO EMPLOYEES     EXERCISE    -------------------------------------------
                               OPTIONS GRANTED      IN FISCAL        PRICE     EXPIRATION
NAME                               (#)(1)            YEAR(2)       ($/SH)(3)      DATE      0%      5%($)        10%($)
- ----                           ---------------   ---------------   ---------   ----------   ---   ----------   -----------
<S>                            <C>               <C>               <C>         <C>          <C>   <C>          <C>
Dennis E. Wheeler............      42,569             41.92         2.8683      03/09/09    $ 0       76,697       194,613
Robert Martinez..............      16,735             16.48         2.8683      03/09/09      0       30,151        76,507
Robert T. Richins............       3,739              3.68         2.8683      03/09/09      0        6,737        17,094
James K. Duff................       3,268              3.22         2.8683      03/09/09      0        5,888        14,940
Paul B. Valenti..............       5,139              5.06         2.8683      03/09/09      0        2,259        23,494
All Shareholders (5).........                                                                 0   39,454,751   100,113,939
Named Executive Officers'
  Gains as a % of All
  Shareholder Gains..........                                                                 0          .33           .33
</TABLE>

- ---------------
(1) The options include nonqualified and incentive stock options that become
    exercisable cumulatively as to 25%, 50%, 75% and 100% after the first,
    second, third and fourth anniversaries, respectively, after the date of
    grant.

(2) Based on options for a total of 101,554 shares granted to all employees.

(3) The exercise price is equal to the fair market value on the date of grant of
    the option.

(4) The potential realizable values shown in the columns are net of the option
    exercise price. These amounts assume annual compounded rates of stock price
    appreciation of 0%, 5%, and 10% from the date of grant to the option
    expiration date, a term of ten years. These rates have been set by the U.S.
    Securities and Exchange Commission and are not intended to forecast future
    appreciation, if any, of the Company's Common Stock. Actual gains, if any,
    on stock option exercises are dependent on several factors including the
    future performance of the Company's Common Stock, overall stock market
    conditions, and the optionee's continued employment through the vesting
    period. The amounts reflected in this table may not actually be realized.

(5) Total dollar gains based on assumed annual rates of appreciation shown and
    the 21,898,624 shares of Common Stock outstanding on March 17, 1999.

     The following aggregate Option Exercises and Year-End Option Value Table
sets forth, for each of the named executive officers, information regarding the
number and value of unexercised options at December 31, 1998. No options were
exercised during 1998 by such persons.

                                       38
<PAGE>   42

       AGGREGATE OPTION EXERCISES AND FISCAL YEAR-END OPTION VALUE TABLE

<TABLE>
<CAPTION>
                                                                  NUMBER OF SHARES
                                                               UNDERLYING UNEXERCISED     VALUE OF UNEXERCISED
                                                                 OPTIONS AT FY-END            IN-THE-MONEY
                              SHARES ACQUIRED                           (#)             OPTIONS AT FY-END ($)(1))
                                ON EXERCISE        VALUE            EXERCISABLE/              EXERCISABLE/
NAME                                (#)         REALIZED ($)       UNEXERCISABLE              UNEXERCISABLE
- ----                          ---------------   ------------   ----------------------   -------------------------
<S>                           <C>               <C>            <C>                      <C>
Dennis E. Wheeler...........        --              --            142,980/135,594                 $0/0
Robert Martinez.............        --              --              15,025/17,169                  0/0
Robert T. Richins...........        --              --                    0/1,755                  0/0
James K. Duff...............        --              --                2,009/7,403                  0/0
Paul B. Valenti.............        --              --                    0/2,169                  0/0
</TABLE>

- ---------------
(1) Market value of underlying securities at exercise or year-end, minus the
    exercise price.

     The following Long-Term Incentive Plan Awards Table sets forth, for each of
the named executive officers, long-term incentive plan awards (not payouts) made
in March 1999 for services rendered in 1998 under the LTPSP. (Payouts for the
completed four-year performance periods ending in 1996, 1997 and 1998 are
reported above under the Long-Term Compensation Payouts column of the Summary
Compensation Table.)

                     LONG-TERM INCENTIVE PLAN AWARDS TABLE

<TABLE>
<CAPTION>
                                         NUMBER OF                           ESTIMATED FUTURE-PAYOUTS UNDER
                                       SHARES, UNITS     PERFORMANCE OR      NON-STOCK PRICE BASED PLANS(2)
                                         OR OTHER         OTHER PERIOD       -------------------------------
                                          RIGHTS       UNTIL MATURATION OR   THRESHOLD    TARGET    MAXIMUM
NAME                                      (#)(1)             PAYOUT             (#)         (#)       (#)
- ----                                   -------------   -------------------   ----------   -------   --------
<S>                                    <C>             <C>                   <C>          <C>       <C>
Dennis E. Wheeler....................     45,669        01/01/99-12/31/02      22,835     45,669     68,504
Robert Martinez......................     17,953        01/01/99-12/31/02       8,977     17,953     26,930
Robert T. Richins....................      4,011        01/01/99-12/31/02       2,006      4,011      6,017
James K. Duff........................      3,506        01/01/99-12/31/02       1,753      3,506      5,259
Paul B. Valenti......................      5,513        01/01/99-12/31/02       2,757      5,513      8,270
</TABLE>

- ---------------
(1) Performance share awards under the LTPSP are based upon target award levels
    established by the Committee at the beginning of each four-year performance
    period and vary depending upon the participant's responsibilities and base
    salary. Awards under the LTPSP are paid after the end of a four-year
    performance period and may vary from 0% to 150% of the targets based on
    actual Company financial performance. Commencing with LTPSP awards made in
    1993, 60% is paid in shares of Common Stock and 40% is paid in cash upon
    completion of the four-year performance period.

(2) Company financial performance for LTPSP award determination purposes is
    based on the Company's total shareholder return ("TSR") relative to a group
    of other companies in the precious metals mining industry (the "Comparable
    Group"). TSR equals the market price of the Company's Common Stock at the
    end of the four-year period plus dividends paid during the period, divided
    by the market price of the Common Stock at the beginning of the period.
    Actual award levels are based on the relative performance of the Company's
    TSR relative to the TSRs of the Comparable Group companies. The threshold
    performance level (i.e., the minimum amount payable) is reached if the
    Company's TSR is at the 30th percentile, in which case the percent of the
    target award is 50%. The target performance level is reached if the
    Company's TSR is at the 50th percentile, in which case the percent of the
    target award is 100%. The maximum performance level is achieved if the
    Company's TSR is at or above the 75th percentile, in which case the percent
    of the target award is 150%.

                                       39
<PAGE>   43

COMPENSATION COMMITTEE REPORT

     The following description of the Company's executive compensation practices
and policies is presented on behalf of the Compensation Committee of the
Company's Board of Directors (the "Committee"). The present members of the
Committee are Cecil D. Andrus, Joseph C. Bennett, John H. Robinson and Robert E.
Mellor. The fundamental philosophy of the Company's Executive Compensation
Program is to offer competitive compensation opportunities based on the
Company's performance and to a lesser extent individual performance. The Company
and the Committee at least annually receive the services of Hewitt Associates, a
leading, independent executive compensation consulting firm, in connection with
the implementation of the Company's Executive Compensation Program. In addition,
the Committee also receives information from other mining company compensation
studies. Compensation of the Company's executive officers is reviewed annually
by the Committee, which is comprised entirely of outside directors, and is
directly linked to the Company's financial performance comparisons with other
companies in the industry and shareholder interests. Total compensation
opportunities are competitive with those offered by other employers in the
precious metals mining industry on a size-adjusted basis. Annual base salaries
are targeted at approximately the 50th percentile of such companies on a
size-adjusted basis.

     Annual incentive compensation awards under the AIP are based on target
award levels, expressed as a percentage of base salaries, established at the
beginning of each annual performance period for participating executives and
vary (from 50% for the Company's Chairman/President/CEO to lower amounts for
other executives) depending upon the individual's level of responsibility and
impact on overall Company performance. Specific individual and group objectives,
reflecting the executive's responsibilities, are developed for each
participating executive prior to the beginning of the year. Objectives for
participants other than the Chairman/President/CEO are established for each
participant by the CEO, and reviewed by the Compensation Committee. Individual
objectives for the Chairman/President/CEO are established by the Committee and
for 1998 included objectives relating to the operation, management and growth of
the Company. Accordingly, the Compensation Committee reviews the executive's
performance relative to the predetermined goals and reports to the Board of
Directors. In addition, financial objectives are established for the Company
based on growth of total assets and cash flow return on total assets. Actual
awards paid after the end of each annual performance period vary from the target
awards based on the actual versus targeted performance objectives. In 1998, 75%
of the target award value was based on financial performance of the Company and
25% was based on the individual performance of the participant. Awards vary from
zero percent to 200 percent of the target awards. The total annual incentive
awards paid to the Company's Chief Executive Officer and the other four highest
paid executive officers employed at the end of 1998 were $404,878 in 1998
compared to $676,938 in 1997.

     Long-term incentive awards under the Plan consist of stock options granted
under the LTIP and performance shares awarded under the LTPSP. Of each long-term
incentive awarded, 25% is allocated to stock options granted under the LTIP and
75% is allocated to performance shares awarded under the LTPSP.

     Awards of stock options are based on established percentages of base salary
and vest cumulatively at a rate of 25% per year. The options expire ten years
after the date of grant. Option exercise prices are equal to the fair market
value of the Common Stock on the date of grant. Stock options granted with
respect to 1997 included (i) a grant of options in September 1998 based on
performance in 1997 and (ii) a grant of options in March 1999 based on
performance in 1998. As of March 17, 1999, nonqualified stock options and
incentive stock options to purchase a total of 482,294 shares of Common Stock at
an average exercise price of $12.23 per share were outstanding.

     Performance shares awarded under the LTPSP are designed to award key
executives for overall Company performance over a four-year time period and to
align the interests of such executives with those of shareholders by rewarding
increases in shareholder value. Before each four-year performance period begins,
target awards, expressed as a percentage of base salaries, are established for
each executive, with a target award level (varying from 120% for the Company's
Chairman/President/CEO to lower amounts for other executives) for each
participant depending upon the individual's level of responsibility and impact
on overall total return to shareholders. Actual awards paid at the end of the
four-year performance period vary from the

                                       40
<PAGE>   44

initial award target based on the actual total shareholder return ("TSR") of the
Company relative to the TSRs of a group of other companies in the precious
metals mining industry (the "Comparable Group"). The companies in the Comparable
Group are ASARCO, Inc., Barrick Gold Corp., Battle Mountain Gold Co., Echo Bay
Mines, Ltd., Meridian Gold, Inc., Hecla Mining Co., Homestake Mining Co., Placer
Dome, Inc. TSR is the price of the Common Stock at the end of the year plus
dividends during the year, divided by the market value of the Common Stock at
the beginning of the year. Actual award payments may vary from zero percent to
150% of the target awards. Final awards under the LTPSP, which are not
determinable until completion of the four-year performance period, are paid 60%
in shares of Common Stock and 40% in cash.

     Payments made in March 1999 under the AIP are based on 1998 performance. As
stated above, 75% of an AIP award is based on the prior year's growth of the
Company's total assets and cash flow return on investment and 25% is based on
individual performance measured against predetermined individual or group
objectives. With respect to the individual performance portion of the March 1999
AIP award to the Company's Chairman/President/CEO, the award was based on 1998
performance and reflected his leadership demonstrated in the formulation of
Coeur's silver strategy that has led to the Asarco Transaction, and the
following Company performance accomplishments in 1998: (i) the fact that the
Company recorded a gross profit (i.e., the excess of revenues from the sale of
concentrates and dore over the cost of mine operations) of $4.6 million in the
year ended December 31, 1998, compared to a gross loss (i.e., the excess of the
cost of mine operations over revenues from the sale of concentrates and dore) in
the year ended December 31, 1997, despite a $36.94 per ounce decline in the
average price of gold in 1998 compared to 1997; (ii) although the Company
recorded a $121.5 million impairment write-down of the Kensington project at
December 31, 1998, the Company substantially completed a Kensington project
optimization study in the fourth quarter of 1998 designed to reduce capital and
operating costs, as a result of which the Company now estimates that assuming it
is able to obtain the necessary permit modifications and decides to go forward
with construction of the mine, the project's operating costs would be reduced to
approximately $195 per ounce and estimated capital costs to construct the mine
would be reduced to approximately $192 million; (iii) the successful
consummation during 1998 of open-market purchases of outstanding convertible
subordinated debentures which resulted in an extraordinary gain of $12.2
million, net of taxes, a decrease in interest expense of approximately $3
million per year and a $42.1 million reduction in the principal amount of its
indebtedness; (iv) although the Company effected a $54.5 million write-down of
the Petorca (El Bronce) Mine during the first quarter of 1998, the Company
implemented an improved mining plan resulting in improved operating performance
at the mine enabling it to defer the previously planned closure of the Mine and
to continue operations there through December 1999; (v) although the Company
recorded a $42.9 million impairment write-down of the Fachinal Mine at December
31, 1998, the Company implemented a 50% reduction in the number of employees at
the mine during the fourth quarter of 1998 as a first step in an aggressive
optimization plan designed to improve operating performance there; and (vi) the
successful location during 1998 of new reserves at the Fachinal and Petorca
Mines and the Rochester project.

                                          Compensation Committee of the
                                          Board of Directors
                                          Joseph C. Bennett, Chairman
                                          Cecil D. Andrus
                                          John H. Robinson
                                          Robert E. Mellor

               SUPPLEMENTAL RETIREMENT DEFERRED COMPENSATION PLAN

     Pursuant to the Company's Supplemental Retirement Deferred Compensation
Plan, officers may defer up to 50% of their salary as well as 100% of the cash
portion of awards under the AIP and LTPSP. Amounts deferred accrue interest at a
prime lending rate not to exceed 10% and payout may be effected by a lump sum or
an annuity.

                                       41
<PAGE>   45

DIRECTORS' FEES

     Pursuant to the Coeur d'Alene Mines Corporation Non-Employee Directors'
Stock Option Plan, outside directors of the Company must receive at least $5,000
of their director fees in the form of stock options in lieu of $5,000 of cash
compensation and are able to elect to receive stock options in lieu of cash fees
for up to the $45,000 balance of their annual director fees. The Company was the
first company in the precious metals mining industry that required the directors
to receive a portion of their directors' fees in stock options in lieu of cash
compensation. Information relating to options granted to outside directors on
January 2, 1998, was set forth in last year's proxy statement relating to the
1998 Annual Meeting of Shareholders. The following table sets forth information
regarding options that were granted under the Plan to non-employee directors on
January 4, 1999:

<TABLE>
<CAPTION>
                                                              AMOUNT OF       NUMBER       OPTION
                                                               FOREGONE     OF SHARES     EXERCISE
                                                              DIRECTOR'S    SUBJECT TO    PRICE PER
NAME OF OUTSIDE DIRECTOR                                         FEES        OPTION*       SHARE**
- ------------------------                                      ----------    ----------    ---------
<S>                                                           <C>           <C>           <C>
Cecil D. Andrus.............................................   $ 5,000         1,424       $4.8125
Joseph C. Bennett...........................................    11,000         3,133        4.8125
James J. Curran.............................................    50,000        14,240        4.8125
James A. McClure............................................     5,000         1,424        4.8125
Robert E. Mellor............................................     5,000         1,424        4.8125
John H. Robinson............................................     5,000         1,424        4.8125
Timothy R. Winterer.........................................    10,000         2,848        4.8125
          Total.............................................   $91,000        25,917
                                                               =======        ======
</TABLE>

- ---------------
 * The number of shares is determined by dividing each outside director's
   foregone directors' fees by the per-share value of an option using the
   Black-Scholes option valuation method.

** The option exercise price is equal to the average of the high and low prices
   of the Common Stock reported by the New York Stock Exchange on January 4,
   1999, which was the date of grant.

     Committee members receive no compensation for their services.

DIRECTORS' RETIREMENT PLAN

     Pursuant to the Company's Directors' Retirement Plan, outside directors who
have a minimum of five years of service are entitled to one year of retirement
benefit for each year of service up to a maximum of ten years of retirement
benefits. Each year's retirement benefit is equal to 40% of the outside
director's annual compensation as a director of the Company at the time of
retirement.

CHANGE IN CONTROL PROVISIONS

     In the event of a change in control of the Company, as defined below (a
"Change in Control"), all awards under the Program fully vest as follows: (i)
all unvested stock options become fully exercisable; (ii) any unvested shares of
restricted stock become fully vested so that the restrictions on the sale of
such stock lapse on the Change in Control date; and (iii) cash or Common Stock
payments of performance awards made under the Program must be fully paid within
30 days following the date of the Change in Control. A Change in Control of the
Company for purposes of the Program is deemed to occur in the event of (i) an
organization, group or person acquires beneficial ownership of securities of the
Company representing 35% or more of the combined voting power of the Company's
then outstanding securities; (ii) a majority of the members of the Company's
Board of Directors during any two-year period is replaced by directors who are
not nominated and approved by the Board; (iii) a majority of the Board members
is represented by, appointed by or affiliated with any organization, group or
person whom the Board has determined is seeking to affect a Change in Control of
the Company; or (iv) the Company is combined with or acquired by another company
and the Board determines, either before or after such event, that a Change in
Control will or has occurred.

                                       42
<PAGE>   46

EMPLOYMENT AGREEMENTS

     The Company has an employment agreement with Dennis E. Wheeler, Chairman of
the Board, President and Chief Executive Officer, which provides for a
three-year term of employment through June 1, 2002, and which is automatically
extended for one year on June 1 of each year unless terminated or modified by
the Company by written notice. Mr. Wheeler's employment agreement includes the
same Change in Control provisions as those included in the Executive Severance
Agreements described below, and in the event of his death, his employment
agreement provides for the lump sum payment to his estate of an amount equal to
his annual base salary at the time of such death.

     During 1997, and continuing from year-to-year thereafter unless terminated
by the Company by written notice, the Executive Severance Agreements with eight
executive officers of the Company (the "Executives") provide that certain
benefits will be payable to the Executives in the event of a Change in Control
of the Company and the termination of the Executive's employment within two
years after such Change in Control for any reason other than for cause,
disability, death, normal retirement or early retirement. (The term "Change in
Control" for purposes of the Executive Severance Agreements has the same meaning
as that discussed above under "Change in Control Provisions.")

     The benefits payable to an Executive in the event of a Change in Control
and such termination of employment are (i) the continued payment of the
Executive's full base salary at the rate in effect immediately prior to his or
her termination of employment, as well as the short-term and long-term bonuses
at 100% of the target levels provided under the AIP and LTPSP for the two years
following such termination of employment; (ii) the continued payment by the
Company during that period of all medical, dental and long-term disability
benefits under programs in which the Executive was entitled to participate
immediately prior to termination of employment; (iii) acceleration of the
exercisability and vesting of all outstanding stock options, restricted stock,
performance plan awards and performance shares granted by the Company to the
Executive under the Program; and (iv) the granting to the Executive of continued
credit through the two-year period following termination of employment for
purposes of determining the Executive's retirement benefits under the Company's
Retirement Plan. Each Executive Severance Agreement provides that if the
severance payments provided thereunder would constitute a "parachute payment,"
as defined in Section 280G of the Internal Revenue Code, the payment will be
reduced to the largest amount that would result in no portion being subject to
the excise tax imposed by, or the disallowance of a deduction under, certain
provisions of the Code. Accordingly, the present value of such payment will
generally be required to be less than three times the Executive's average annual
taxable compensation during the five-year period preceding the Change in
Control.

                                       43
<PAGE>   47

                            STOCK PERFORMANCE CHART

     The following chart compares the Company's cumulative total shareholder
return with the S&P 500 Index, which is a performance indicator of the overall
stock market, and a Company-determined peer group.

                COMPARISON OF FIVE YEAR CUMULATIVE TOTAL RETURN*
                 AMONG COEUR D'ALENE MINES CORPORATION, S&P 500
                            INDEX & PEER GROUP INDEX

<TABLE>
<CAPTION>
                                                   COEUR D'ALENE MINES
                                                CORPORATION COMMON STOCK          S&P 500 INDEX            PEER GROUP INDEX**
                                                ------------------------          -------------            ------------------
<S>                                             <C>                         <C>                         <C>
Dec.1993                                                $100.00                     $100.00                     $100.00
Dec.1994                                                  76.67                      101.36                       83.80
Dec.1995                                                  80.87                      139.32                       91.71
Dec.1996                                                  72.01                      171.23                       87.42
Dec.1997                                                  42.55                      228.27                       56.62
Dec.1998***                                               22.02                      293.04                       54.64
</TABLE>

Assumes $100 invested on January 1, 1993, in the Company's Common Stock, S&P 500
Index and a peer group index.
- ---------------
  * Total return assumes reinvestment of dividends.

 ** The issuers of common stock included in the peer group index are ASARCO
    Incorporated, Barrick Gold Corp., Battle Mountain Gold Co., Echo Bay Mines,
    Ltd., Meridian Gold, Inc., Hecla Mining Company, Homestake Mining Company,
    and Placer Dome, Inc.

*** Fiscal year ending December 31.

                                       44
<PAGE>   48

            SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

     Section 16(a) of the Securities Exchange Act of 1934 as amended, requires
the Company's officers and directors, and persons who own more than 10% of a
registered class of the Company's equity securities, to file reports of
securities ownership and changes in such ownership with the Securities and
Exchange Commission. Initial Statements of Beneficial Ownership of Securities on
Form 3 are required to be filed within ten days after the date on which the
person became a reporting person. Statements of Changes of Beneficial Ownership
of Securities are required to be filed by the tenth day of the month following
the month during which the change in beneficial ownership of securities
occurred. A Form 4 reporting the granting of an option to John H. Robinson on
June 11, 1998, which should have been filed with the Commission by July 10,
1998, was actually filed on July 14, 1998. The Company believes that all other
reports of securities ownership and changes in such ownership required to be
filed during 1998 were timely filed.

                        YEAR 2000 SHAREHOLDER PROPOSALS

     Proposals of shareholders intended to be presented at the 2000 Annual
Meeting must be received by the Secretary of the Company, 400 Coeur d'Alene
Mines Building, Post Office Box I, Coeur d'Alene, Idaho 83814 no later than
December 1, 1999, in order for them to be considered for inclusion in the 2000
Proxy Statement. A shareholder desiring to submit a proposal to be voted on at
next year's Annual Meeting, but not desiring to have such proposal included in
next year's proxy statement relating to that meeting, should submit such
proposal to the Company by February 16, 2000 (i.e., at least 45 days prior to
the expected date of the mailing of the proxy statement). Failure to comply with
that advance notice requirement will permit management to use its discretionary
voting authority if and when the proposal is raised at the Annual Meeting
without having had a discussion of the proposal in the proxy statement.

                                 OTHER MATTERS

     The Board of Directors of the Company has not yet appointed the accounting
firm to serve as the Company's independent public accountants for the current
fiscal year. Ernst & Young LLP audited the Company's financial statements for
the year ended December 31, 1998 and has served as the Company's independent
public accountants since 1981. A representative of Ernst & Young LLP is expected
to be present at the Annual Meeting to answer any questions concerning the
Company's financial statements and to make a statement if he or she desires to
do so.

     Management is not aware of any other matters to be considered at the
meeting. If any other matters properly come before the meeting, the persons
named in the enclosed Proxy will vote said Proxy in accordance with their
discretion.

     The Company's 1998 Annual Report to Shareholders, which includes financial
statements for the year ended December 31, 1998, was mailed in mid April 1999 to
shareholders of record as of March 17, 1999.

                                          By order of the Board of Directors,
                                          COEUR D'ALENE MINES CORPORATION

                                          DENNIS E. WHEELER
                                          Chairman of the Board

Coeur d'Alene, Idaho
July 28, 1999

                                       45
<PAGE>   49

                                                                       EXHIBIT A
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                              AMENDED AND RESTATED

                             TRANSACTION AGREEMENT
                                 BY AND BETWEEN
                              ASARCO INCORPORATED
                                      AND
                        COEUR D'ALENE MINES CORPORATION
                            ------------------------

       DATED AS OF MAY 13, 1999, AMENDED AND RESTATED AS OF JUNE 22, 1999

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                       A-1
<PAGE>   50

                              AMENDED AND RESTATED

                             TRANSACTION AGREEMENT

     TRANSACTION AGREEMENT (this "Agreement") dated as of May 13, 1999 and
amended and restated as of June 22, 1999 by and between ASARCO INCORPORATED, a
New Jersey corporation ("Asarco"), and COEUR D'ALENE MINES CORPORATION, an Idaho
corporation ("Coeur").

                              W I T N E S S E T H:

     WHEREAS, Asarco and NPMC, Inc., a Delaware corporation (formerly Northern
Peru Mining Corporation) ("NPMC") together own 1,500,000 shares of common stock,
no par value, of Pan American Silver Corp., a corporation incorporated under the
laws of British Columbia ("PASC"), being 5.2% of the issued and outstanding
shares of capital stock of PASC (the "PASC Stock") based upon PASC's public
report of the number of shares outstanding as of March 31, 1999; NPMC owns
warrants to acquire an additional 500,000 shares of PASC capital stock ("PASC
Warrants"); Asarco owns 500 shares of common stock, par value $.01, of Silver
Valley Resources Corporation, a Delaware corporation ("Silver Valley"), being
50% of the issued and outstanding shares of capital stock of Silver Valley (the
"Silver Valley Stock"); Asarco owns 1,000 shares of common stock, par value
$1.00, of NPMC, being all of the issued and outstanding shares of capital stock
of NPMC (the "NPMC Stock"); and Asarco and one of its subsidiaries together own
12,422 quotas of capital, with a value of Bolivianos (Bs.) 1,000.00 each of
Empresa Minera Manquiri S.R.L., a Bolivian limited liability company
("Empresa"), being all of the issued and outstanding capital stock of Empresa
(the "Empresa Quotas") (the PASC Stock, the PASC Warrants, Silver Valley Stock,
NPMC Stock and Empresa Quotas collectively referred to herein as the "Asarco
Interests");

     WHEREAS, Asarco desires to exchange the Asarco Interests for 7,125,000
newly issued shares of Coeur common stock (the "New Coeur Stock") and Coeur
desires to exchange the New Coeur Stock for the Asarco Interests pursuant to
this Agreement; and

     WHEREAS, it is the intention of the parties hereto that, upon consummation
of the exchange of the Asarco Interests for the New Coeur Stock pursuant to this
Agreement, Asarco shall own the New Coeur Stock and Coeur shall own the Asarco
Interests;

     NOW, THEREFORE, IT IS AGREED:

                                   ARTICLE I

                                  DEFINITIONS

     sec. 1.1 Definitions.  When used in this Agreement, the following terms
shall have the respective meanings specified therefor below (such meanings to be
equally applicable to both the singular and plural forms of the terms defined).

     "Affiliate" of any Person shall mean any Person directly or indirectly
controlling, controlled by, or under common control with, such Person; provided
that, for the purposes of this definition, "control" (including, with
correlative meanings, the terms "controlled by" and "under common control
with"), as used with respect to any Person, shall mean the possession, directly
or indirectly, of the power to direct or cause the direction of the management
and policies of such Person, whether through the ownership of voting securities
or partnership interests, by contract or otherwise.

     "Agreement" shall have the meaning assigned to such term in the preamble to
this Agreement.

     "Asarco" shall have the meaning assigned to such term in the preamble to
this Agreement.

     "Asarco Indemnitee" shall have the meaning assigned to such term in Section
9.2.

     "Asarco Interests" shall have the meaning assigned to such term in the
first recital of this Agreement.

                                       A-2
<PAGE>   51

     "Business Day" shall mean any day, other than a Saturday, Sunday or a day
on which banks located in New York, New York shall be authorized or required by
law to close.

     "Closing" shall have the meaning assigned to such term in Section 2.3.

     "Closing Date" shall have the meaning assigned to such term in Section 2.3.

     "Coeur" shall have the meaning assigned to such term in the preamble to
this Agreement.

     "Coeur Balance Sheet" shall have the meaning assigned to such term in
Section 4.5.

     "Coeur Balance Sheet Date" shall have the meaning assigned to such term in
Section 4.5.

     "Coeur Common Stock" shall have the meaning assigned to such term in
Section 4.4.

     "Coeur Financial Reports" shall have the meaning assigned to such term in
Section 4.5.

     "Coeur Indemnitee" shall have the meaning assigned to such term in Section
9.2.

     "Coeur Property" shall mean any real property and improvements owned
(directly, indirectly, or beneficially), leased, used, operated or occupied by
Coeur and/or the Coeur Subsidiaries.

     "Coeur Subsidiary" shall have the meaning assigned to such term in Section
4.3.

     "Condition" of any Person shall mean the business, properties, assets,
liabilities, operations, results of operations, condition (financial or
otherwise) or prospects of such Person.

     "Damages" shall mean any and all losses, claims, demands, liabilities,
obligations, costs and expenses, including without limitation, reasonable fees
and disbursements of counsel (however sustained or incurred, including, without
limitation, in any action or proceeding involving any third party or involving
any other party to this Agreement) sustained or incurred by or claimed against
Coeur or Asarco, as the case may be, and other reasonable out-of-pocket costs
and expenses incurred in connection with investigating or defending any action,
suit or proceeding, commenced or threatened, but excluding punitive or
consequential losses or damages.

     "Empresa" shall have the meaning assigned to such term in the first recital
of this Agreement.

     "Empresa Balance Sheet" shall have the meaning assigned to it in Section
3.7.

     "Empresa Balance Sheet Date" shall have the meaning assigned to it in
Section 3.7.

     "Empresa Capital" shall have the meaning assigned to it in Section 3.4.

     "Empresa Property" shall mean any real property and improvements owned
(directly, indirectly, or beneficially), leased, used, operated or occupied by
Empresa and/or the Empresa Subsidiaries.

     "Empresa Quotas" shall have the meaning assigned to such term in the first
recital of this Agreement.

     "Environmental Claims" shall mean any and all administrative, regulatory or
judicial actions, suits, demands, demand letters, claims, liens, notices of
noncompliance or violation, investigations or proceedings relating in any way to
any Environmental Law or any permit issued under any such Environmental Law,
(for purposes of this definition, "Claims") including, without limitation: (i)
any and all Claims by governmental or regulatory authorities for enforcement,
cleanup, removal, response, remedial or other actions or damages pursuant to any
applicable Environmental Law; and (ii) any and all Claims, by any third party
seeking damages, contribution, indemnification, cost recovery, compensation or
injunctive relief resulting from Hazardous Materials or arising from alleged
injury or threat of injury to health, safety or the environment.

     "Environmental Law" shall mean any federal, state, foreign or local
statute, law, rule, regulation, ordinance, code, guideline, policy or rule of
common law in effect and in each case as amended as of the date hereof and the
Closing and any judicial or administrative interpretation thereof as of the date
hereof and the Closing including any judicial or administrative order, consent
decree or judgment, relating to the environment, health, safety or Hazardous
Materials, including without limitation the Comprehensive Environmental
Response, Compensation, and Liability Act of 1980, as amended, 42 U.S.C. Section
9601 et seq.; the Resource Conservation and Recovery Act, as amended, 42 U.S.C.
Section 6901 et seq.; the Federal Water
                                       A-3
<PAGE>   52

Pollution Control Act, as amended, 33 U.S.C. Section 1251 et seq.; the Toxic
Substances Control Act, 15 U.S.C. sec. 2601 et seq.; the Clean Air Act, 42
U.S.C. sec. 7401 et seq.; the Safe Drinking Water Act, 42 U.S.C. sec. 300f et
seq.; the Oil Pollution Act of 1990, 33 U.S.C. sec. 2701 et seq.; and their
state and local counterparts and equivalents.

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended,
together with the rules and regulations promulgated thereunder.

     "GAAP" shall have the meaning assigned to such term in Section 3.5.

     "HSR Act" shall mean the Hart-Scott-Rodino Antitrust Improvement Act of
1976, as amended, and the rules and regulations thereunder.

     "Hazardous Materials" shall mean: (i) any petroleum or petroleum products,
radioactive materials, asbestos in any form that is or could become friable,
urea formaldehyde foam insulation, transformers or other equipment that contain
dielectric fluid containing levels of polychlorinated biphenyls, and radon gas;
(ii) any chemicals, materials or substances defined as or included in the
definition of "hazardous substances," "hazardous wastes," "hazardous materials,"
"extremely hazardous wastes," "restricted hazardous wastes," "toxic substances,"
"toxic pollutants" or words of similar import, under any applicable
Environmental Law; and (iii) any other chemical, material or substance, exposure
to which is prohibited, limited or regulated by any governmental authority.

     "Indemnified Party" shall have the meaning assigned to such term in Section
9.3.

     "Indemnifying Party" shall have the meaning assigned to such term in
Section 9.3.

     "Liens" shall mean liens, security interests, options, rights of first
refusal, easements, mortgages, charges, indentures, deeds of trust, rights of
way, restrictions on the use of real property, encroachments, licenses to third
parties, leases to third parties, security agreements, or any other encumbrances
and other restrictions or limitations on use of real or personal property or
irregularities in title thereto.

     "Loss" shall have the meaning assigned to such term in Section 9.2.

     "Material Adverse Change" shall mean a material adverse effect on the
assets, properties, businesses, results of operations or financial condition of
a party, taken as a whole, and in any case after application of the proceeds of
any insurance or indemnity; provided that the term "Material Adverse Change" as
used herein shall not include any effect attributable to changes in the
political or economic conditions of the United States or any other country
generally, changes in the industries in which any party engages, or seasonality
of the businesses of any party.

     "New Coeur Stock" shall have the meaning assigned to such term in the
second recital of this Agreement.

     "NPMC" shall have the meaning assigned to such term in the first recital of
this Agreement.

     "NPMC Balance Sheet" shall have the meaning assigned to such term in
Section 3.6.

     "NPMC Balance Sheet Date" shall have the meaning assigned to such term in
Section 3.6.

     "NPMC Common Stock" shall have the meaning assigned to such term in Section
3.4.

     "NPMC Stock" shall have the meaning assigned to such term in the first
recital of this Agreement.

     "PASC Stock" shall have the meaning assigned to such term in the first
recital of this Agreement.

     "PASC Warrants" shall have the meaning assigned to such term in the first
recital of this Agreement.

     "Parties" shall mean Asarco and Coeur and their respective successors and
permitted assigns.

     "Permitted Liens" shall mean: (i) Liens expressly reflected in the most
recent balance sheet of such Person that was delivered prior to the execution of
this Agreement, (ii) Liens consisting of zoning or planning restrictions or
regulations, easements, permits, restrictive covenants, encroachments and other
restrictions or limitations on the use of real property or irregularities in, or
exceptions to, title thereto which do not materially

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<PAGE>   53

detract from the value of, or impair the use of, such property; and (iii) Liens
for current taxes, assessments or governmental charges or levies not yet due and
payable.

     "Person" shall mean and include an individual, a partnership, a joint
venture, a corporation, a limited liability company, a limited liability
partnership, a trust, an incorporated organization and a government or any
department or agency thereof.

     "Release" shall mean the disposing, discharging, injecting, spilling,
leaking, leaching, dumping, emitting, escaping, emptying, seeping, placing and
the like, into or upon any land or water or air, or otherwise entering into the
environment.

     "SEC" shall mean the United States Securities and Exchange Commission.

     "Securities Act" shall mean the Securities Act of 1933, as amended,
together with the rules and regulations promulgated thereunder.

     "Silver Valley Balance Sheet" shall have the meaning assigned to it in
Section 3.5.

     "Silver Valley Balance Sheet Date" shall have the meaning assigned to it in
Section 3.5.

     "Silver Valley Common Stock" shall have the meaning assigned to it in
Section 3.4.

     "Silver Valley" shall have the meaning assigned to such term in the first
recital of this Agreement.

     "Silver Valley Property" shall mean any real property and improvements
owned (directly, indirectly, or beneficially), leased, used, operated or
occupied by Silver Valley.

     "Silver Valley Stock" shall have the meaning assigned to such term in the
first recital of this Agreement.

     "Subsidiary" shall mean any other Person in which a Person owns, directly
or indirectly, 50% or more of the outstanding shares of voting capital stock or
other voting equity interests.

     "Taxes" means all taxes, assessments, charges, duties, fees, levies or
other governmental charges, including, without limitation, all federal, state,
local, foreign and other income, franchise, profits, capital gains, capital
stock, transfer, sales, use, occupation, property, excise, severance, windfall
profits, stamp, license, payroll, withholding and other taxes, assessments,
charges, duties, fees, levies or other governmental charges of any kind
whatsoever (whether payable directly or by withholding and whether or not
requiring the filing of a return), all estimated taxes, deficiency assessments,
additions to tax, penalties and interest and shall include any liability for
such amounts as a result either of being a member of a combined, consolidated,
unitary or affiliated group or of a contractual obligation to indemnify any
person or other entity.

                                   ARTICLE II

             TRANSFER OF ASARCO INTERESTS; ISSUE OF NEW COEUR STOCK

     sec. 2.1 Transfer of Asarco Interests.  Upon the terms and subject to the
conditions set forth in this Agreement, Asarco agrees to transfer and convey the
Asarco Interests to Coeur at the Closing on the Closing Date. The certificates
representing the PASC Stock, the PASC Warrants, the Silver Valley Stock, the
NPMC Stock and the Empresa Quotas shall be duly endorsed in blank, or
accompanied by stock powers duly executed in blank, or a public deed of transfer
of quotas, by Asarco transferring the same, with all necessary transfer tax and
other revenue stamps, acquired at Asarco's expense, affixed and canceled.

     sec. 2.2 Issue of New Coeur Stock.  Upon the terms and subject to the
conditions set forth in this Agreement, Coeur agrees to issue the New Coeur
Stock to Asarco at the Closing on the Closing Date. The New Coeur Stock shall be
evidenced by one or more certificates (as may be requested by Asarco five
Business Days prior to the Closing Date), with all necessary issue tax and other
revenue stamps, acquired at Coeur's expense, affixed and canceled.

     sec. 2.3 Closing.  The transactions referred to in Sections 2.1 and 2.2
(the "Closing") shall take place at the offices of Asarco, 180 Maiden Lane, New
York, New York 10038 on the day on which the approval of

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<PAGE>   54

Coeur stockholders shall be obtained as provided in Sections 7.3 and 8.3,or at
such other time and date as the Parties hereto shall designate in writing. Such
date is herein referred to as the "Closing Date".

                                  ARTICLE III

                           REPRESENTATIONS OF ASARCO

     sec. 3.1 Representations of Asarco.  Asarco represents, warrants and agrees
as follows:

     sec. 3.2 Ownership of Stock; Due Authorization; Enforceability.  (a) Asarco
is the lawful owner, beneficially and of record, of the Asarco Interests, free
and clear of all Liens. Asarco has full legal right, power and authority to
enter into this Agreement and to transfer and convey the Asarco Interests
pursuant to this Agreement and the delivery to Coeur of the Asarco Interests
pursuant to the provisions of this Agreement will transfer to Coeur good and
valid title thereto, free and clear of all Liens. The delivery to Coeur of the
Asarco Interests pursuant to the provisions of this Agreement will transfer to
Coeur ownership of 1,500,000 shares of the issued and outstanding capital stock
of PASC and warrants to acquire an additional 500,000 shares of capital stock of
PASC, 50% of the issued and outstanding capital stock of Silver Valley, 100% of
the issued and outstanding capital stock of NPMC and 100% of the authorized,
issued and outstanding quotas of capital of Empresa.

     (b) Asarco is validly existing and in good standing under the laws of New
Jersey and has the requisite corporate power and authority to execute and
deliver this Agreement and to perform its obligations hereunder. The execution,
delivery and performance of this Agreement and the transactions contemplated
hereby by Asarco is required to be duly authorized and approved by the board of
directors of Asarco. No other corporate action is necessary to authorize the
execution, delivery and performance of this Agreement and the transactions
contemplated hereby by Asarco.

     (c) This Agreement and all other instruments and agreements to be executed
and delivered by Asarco as contemplated hereby and identified herein when
delivered in accordance with the terms hereof, assuming the due execution and
delivery of this Agreement and each such other document by the other parties
thereto, shall have been duly executed and delivered by Asarco and shall be a
valid and binding obligation of Asarco, enforceable against Asarco in accordance
with its terms, except to the extent that its enforceability may be subject to
applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting the enforcement of creditors' rights generally and to general
equitable principles.

     sec. 3.3 Existence and Good Standing.  (a) NPMC is a corporation duly
organized, validly existing and in good standing under the laws of Delaware.
NPMC has the power to own its property and to carry on its business as now being
conducted.

     (b) Empresa is a limited liability company duly organized and validly
existing under the laws of Bolivia. Empresa has the power to own its property
and to carry on its business as now being conducted.

     (c) Silver Valley is a corporation duly organized, validly existing and in
good standing under the laws of Delaware. Silver Valley has the power to own its
property and to carry on its business as now being conducted.

     sec. 3.4 Capital Stock of NPMC and Empresa.  (a) NPMC has an authorized
capitalization consisting of only 1,000 shares of common stock, $1.00 par value
("NPMC Common Stock"), of which 1,000 shares are issued and outstanding. All
such outstanding shares have been duly authorized and validly issued and are
fully paid and nonassessable and are not subject to, nor were they issued in
violation of, any preemptive rights.

     (b) Empresa has an authorized capitalization consisting of only 12,422
quotas of capital with a value of Bolivianos (Bs) 1,000 each ("Empresa
Capital"), of which 100% are issued and outstanding. All such outstanding quotas
have been duly authorized and validly issued and are fully paid and
nonassessable and are not subject to, nor were they issued in violation of, any
preemptive rights.

     (c) Silver Valley has an authorized capitalization consisting of only 1,000
shares of common stock, $.01 par value ("Silver Valley Common Stock"), of which
1,000 shares are issued and outstanding. All such

                                       A-6
<PAGE>   55

outstanding shares have been duly authorized and validly issued and are fully
paid and nonassessable and are not subject to, nor were they issued in violation
of, any preemptive rights.

     sec. 3.5 Silver Valley Financial Statements and No Material Changes.  (a)
Asarco has heretofore furnished Coeur with the consolidated balance sheets of
Silver Valley (the "Silver Valley Balance Sheet") as of December 31, 1998 and
the related consolidated statements of income for such year (the "Silver Valley
Balance Sheet Date"). The Silver Valley Balance Sheet is attached as Schedule
3.5. The financial statements referred to above, including the footnotes
thereto, except as indicated therein, have been prepared in accordance with
United States generally accepted accounting principles consistently followed
throughout the periods indicated ("GAAP").

     (b) The Silver Valley Balance Sheet fairly presents, in all material
respects, the financial condition of Silver Valley at the date thereof. Since
the Silver Valley Balance Sheet Date there has been (x) no Material Adverse
Change in the Condition of Silver Valley, taken as a whole, and (y) no change in
the Condition of Silver Valley except in the ordinary course of business, and,
to the best knowledge of Asarco, no fact or condition exists or is contemplated
or threatened which is reasonably likely to cause such a change in the future.

     sec. 3.6 NPMC Financial Statements and No Material Changes.  (a) Asarco has
heretofore furnished Coeur with the consolidated balance sheets of NPMC (the
"NPMC Balance Sheet") as of December 31, 1998 and the related consolidated
statements of income for such year (the "NPMC Balance Sheet Date"). The NPMC
Balance Sheet is attached as Schedule 3.6. The financial statements referred to
above, including the footnotes thereto, except as indicated therein, have been
prepared in accordance with United States generally accepted accounting
principles consistently followed throughout the periods indicated ("GAAP").

     (b) The NPMC Balance Sheet fairly presents, in all material respects, the
financial condition of NPMC at the date thereof. Since the NPMC Balance Sheet
Date there has been (x) no material adverse change in the Condition of NPMC,
taken as a whole, and (y) no change in the Condition of NPMC except in the
ordinary course of business, and, to the best knowledge of Asarco, no fact or
condition exists or is contemplated or threatened which is reasonably likely to
cause such a change in the future.

     sec. 3.7 Empresa Financial Statements and No Material Changes.  (a) Asarco
has heretofore furnished Coeur with the consolidated balance sheets of Empresa
(the "Empresa Balance Sheet") as of March 31, 1999 (the "Empresa Balance Sheet
Date", and the related consolidated statements of income. The Empresa Balance
Sheet is attached as Schedule 3.7. The financial statements referred to above,
including the footnotes thereto, except as indicated therein, have been prepared
in accordance with GAAP consistently followed throughout the periods indicated.

     (b) The Empresa Balance Sheet fairly presents, in all material respects,
the financial condition of Empresa at the date thereof. Since the Empresa
Balance Sheet Date there has been (x) no material adverse change in the
Condition of Empresa , taken as a whole, and (y) no change in the Condition of
Empresa except in the ordinary course of business, and, to the best knowledge of
Asarco, no fact or condition exists or is contemplated or threatened which is
reasonably likely to cause such a change in the future.

     sec. 3.8 Books and Records.  (a) The minute books of NPMC, as previously
made available to Coeur and its representatives, contain accurate records of all
meetings of, and corporate action taken by (including action taken by written
consent), the respective shareholders and boards of directors of NPMC.

     (b) The minute books of Empresa, as previously made available to Coeur and
its representatives, contain accurate records of all meetings of, and corporate
action taken by (including action taken by written consent), the respective
partners of Empresa.

     (c) The minute books of Silver Valley, as previously made available to
Coeur and its representatives, contain accurate records of all meetings of, and
corporate action taken by (including action taken by written consent), the
respective shareholders and boards of directors of Silver Valley.

     sec. 3.9 Title to Personal Properties; Encumbrances.  (a) Except for
properties and assets which have been sold or otherwise disposed of in the
ordinary course of business, NPMC has good, valid and marketable title
                                       A-7
<PAGE>   56

to: (i) all of its material personal properties and material assets (tangible
and intangible), including, without limitation, all of the properties and assets
reflected in the NPMC Balance Sheet; and (ii) all of the material personal
properties and material assets purchased by NPMC since the NPMC Balance Sheet
Date; in each case free and clear of all Liens except Permitted Liens.

     (b) Except for properties and assets which have been sold or otherwise
disposed of in the ordinary course of business, Empresa has good, valid and
marketable title to: (i) all of its material personal properties and material
assets (tangible and intangible), including, without limitation, all of the
properties and assets reflected in the Empresa Balance Sheet; and (ii) all of
the material personal properties and material assets purchased by Empresa since
the Empresa Balance Sheet Date; in each case free and clear of all Liens except
Permitted Liens.

     (c) Except for properties and assets which have been sold or otherwise
disposed of in the ordinary course of business, Silver Valley has good, valid
and marketable title to: (i) all of its material personal properties and
material assets (tangible and intangible), including, without limitation, all of
the properties and assets reflected in the Silver Valley Balance Sheet; and (ii)
all of the material personal properties and material assets purchased by Silver
Valley since the Silver Valley Balance Sheet Date; in each case free and clear
of all Liens except Permitted Liens.

     sec. 3.10 Consents and Approvals; No Violations.  (a) Other than in
connection with or in compliance with the specific provisions of the HSR Act, or
as set forth on Schedule 3.10 attached hereto, the execution and delivery of
this Agreement by Asarco and the consummation by Asarco of the transactions
contemplated hereby will not: (1) violate any provision of the certificate of
incorporation, by-laws or other organizational document of Asarco; (2) violate
any statute, ordinance, rule, regulation, order or decree of any court or of any
governmental or regulatory body, agency or authority applicable to Asarco or by
which any of its respective properties or assets may be bound; (3) require
Asarco to make or obtain any filing with, or permit, consent or approval of, or
give any notice to, any governmental or regulatory body, agency or authority; or
(4) result in a violation or breach of, conflict with or constitute a default
under any of the terms, conditions or provisions of any note, bond, mortgage,
indenture, license, franchise, permit, agreement, lease, franchise agreement or
other instrument or obligation to which Asarco is a party, or by which Asarco or
any of its properties or assets is bound except in the case of clauses (3) and
(4) above, for such violations, filings, permits, consents, approvals, notices,
breaches or conflicts which would not have a material adverse effect on the
ability of Asarco to consummate the transactions contemplated hereby or to
perform its obligations hereunder.

     (b) Other than in connection with or in compliance with the specific
provisions of the HSR Act, or as set forth on Schedule 3.10 attached hereto, the
execution and delivery of this Agreement by Asarco and the consummation by
Asarco of the transactions contemplated hereby will not: (1) violate any
provision of the certificate of incorporation or by-laws of NPMC, Silver Valley
or Empresa; (2) violate any statute, ordinance, rule, regulation, order or
decree of any court or of any governmental or regulatory body, agency or
authority applicable to NPMC, Silver Valley or Empresa or by which any of the
respective properties or assets of NPMC, Silver Valley or Empresa may be bound;
(3) require NPMC, Silver Valley or Empresa to make or obtain any filing with or
permit, consent or approval of or give any notice to, any governmental or
regulatory body, agency or authority; or (4) result in a violation or breach of,
conflict with, constitute (with or without due notice or lapse of time or both)
a default under, or result in the creation of any Lien upon any of the
properties or assets of NPMC, Silver Valley or Empresa under, any of the terms,
conditions or provisions of any note, bond, mortgage, indenture, license,
franchise, permit, agreement, lease, franchise agreement or other instrument or
obligation to which NPMC, Silver Valley or Empresa is a party, or by which it or
any of their respective properties or assets is bound except in the case of
clauses (3) and (4) above, for such violations, filings, permits, consents,
approvals, notices, breaches or conflicts which would not have a material
adverse effect on the ability of Asarco to consummate the transactions
contemplated hereby or to perform its obligations hereunder.

     sec. 3.11 Compliance with Laws.  NPMC, Silver Valley and Empresa are in
compliance in all material respects with all applicable laws, statutes,
ordinances, regulations, orders, judgments and decrees of any government or
political subdivision thereof, whether federal, state, or local and whether
domestic or foreign, or

                                       A-8
<PAGE>   57

any agency or instrumentality thereof, or any court or arbitrator, and has not
received any notice that any violation of the foregoing is being or may be
alleged.

     sec. 3.12 Environmental Laws and Regulations.  Except as set forth on
Schedule 3.12:

          (a) NPMC, Silver Valley and Empresa are in compliance in all material
     respects with all Environmental Laws and the requirements of any Permits
     issued under such Environmental Laws with respect to any NPMC Property,
     Silver Valley Property or Empresa Property;

          (b) There are no past, pending or, to the best knowledge of Asarco,
     threatened material Environmental Claims against NPMC, Silver Valley or
     Empresa or any NPMC Property, Silver Valley Property or Empresa Property;
     and

          (c) To the best knowledge of Asarco, there are no facts,
     circumstances, conditions or occurrences regarding any NPMC Property,
     Silver Valley Property or Empresa Property that could reasonably be
     anticipated: (i) to form the basis of a material Environmental Claim
     against NPMC, Silver Valley or Empresa, or any NPMC Property, Silver Valley
     Property or Empresa Property or assets; or (ii) to cause such NPMC
     Property, Silver Valley Property or Empresa Property or NPMC assets, Silver
     Valley assets or Empresa assets to be subject to any material restrictions
     on its ownership, occupancy, use or transferability under any Environmental
     Law.

     sec. 3.13 No Changes Since Balance Sheet Dates of NPMC, Silver Valley
Empresa.  (a) Since the NPMC Balance Sheet Date, neither Asarco or NPMC has
taken any action which, if taken subsequent to the execution of this Agreement
and on or prior to the Closing Date, would constitute a breach of the agreements
set forth in clauses (a) through and including (N) of Section 5.1.

     (b) Since the Empresa Balance Sheet Date, neither Asarco or Empresa has
taken any action which, if taken subsequent to the execution of this Agreement
and on or prior to the Closing Date, would constitute a breach of the agreements
set forth in clauses (a) through and including (N) of Section 5.1.

     (c) Since the Silver Valley Balance Sheet Date, neither Asarco or Silver
Valley has taken any action which, if taken subsequent to the execution of this
Agreement and on or prior to the Closing Date, would constitute a breach of the
agreements set forth in clauses (a) through and including (m) of Section 5.1

     sec. 3.14 Litigation.  Except as set forth on Schedule 3.14 attached
hereto, there is no action, suit, proceeding at law or in equity, arbitration or
administrative or other proceeding by or before (or to the best knowledge of
Asarco any investigation by) any governmental or other instrumentality or
agency, pending, or, to the best knowledge of Asarco, threatened, against or
affecting NPMC, Silver Valley or Empresa, or any of their properties or rights
which would materially adversely affect the right or ability of such companies
to perform their obligations pursuant to this Agreement or which would
materially adversely affect the right or ability of such companies to carry on
their respective business as now conducted, or to own their respective assets,
or which would materially adversely affect the Condition of such companies.
Neither NPMC, Silver Valley or Empresa is subject to any judgment, order or
decree entered in any lawsuit or proceeding which would materially adversely
affect the right or ability of such companies to perform its obligations
pursuant to this Agreement or which would have a material adverse effect on the
Condition of such companies.

     sec. 3.15 Taxes.

     (a) Each of NPMC, Silver Valley and Empresa has timely filed or caused to
be timely filed with the appropriate taxing authorities all Returns that are
required to be filed by, or with respect to, NPMC, Silver Valley or Empresa on
or prior to the Closing Date. The Returns have accurately reflected and will
accurately reflect all liability for Taxes of NPMC, Silver Valley and Empresa
for the periods covered thereby.

     (b) Each of NPMC, Silver Valley and Empresa has each timely paid the taxes
shown on such Returns as due and with respect to any Taxes of NPMC, Silver
Valley and Empresa not yet due and payable, adequate reserves and accruals in
all material respects for such Taxes have been made in the Financial Statements
or in the books and records of these companies.

                                       A-9
<PAGE>   58

     (c) Neither NPMC, Silver Valley or Empresa has received written notice from
any taxing authority of any material deficiency, claim or other dispute relating
to the payment or assessment of any Taxes for any period which remains unsettled
at the date hereof.

     (d) Neither NPMC, Silver Valley or Empresa has executed any waiver of any
statute of limitations on the assessment or collection of Taxes or executed any
agreement now in effect extending the period of time to assess or collect any
Taxes.

     (e) Neither NPMC, Silver Valley or Empresa is or has been a United States
real property holding corporation within the meaning of Section 897 (c) (2) of
the Code.

     sec. 3.16 Liabilities.  Neither NPMC, Silver Valley or Empresa has any
material outstanding claims, liabilities or indebtedness, contingent or
otherwise, except as set forth in the their respective Balance Sheets or
referred to in the footnotes thereto, other than liabilities in the ordinary
course of business. Neither NPMC, Silver Valley or Empresa is in material
default in respect of the terms or conditions of any material indebtedness.

     sec. 3.17 Employment Relations.  Except as disclosed in schedule 3.17, (a)
each of NPMC, Silver Valley and Empresa is in substantial compliance with all
federal, state or other applicable laws, domestic or foreign, respecting
employment and employment practices, terms and conditions of employment and
wages and hours, and has not and is not engaged in any unfair labor practice;

     (b) no unfair labor practice complaint against NPMC, Silver Valley or
Empresa is pending before the National Labor Relations Board or any other
similar board or tribunal; and

     (c) there is no labor strike, dispute, slowdown or stoppage actually
pending or threatened against or involving NPMC, Silver Valley or Empresa.

     sec. 3.18 Brokers' or Finders' Fees.  No agent, broker, person or firm
acting on behalf of Asarco is, or will be, entitled to any commission or
brokers' or finders' fees from any of the Parties hereto, or from any Affiliate
of any of the Parties hereto, in connection with any of the transactions
contemplated by this Agreement.

     sec. 3.19 Bank Accounts.  Not less than five (5) days prior to the Closing
Date, NPMC, Silver Valley and Empresa shall deliver to Coeur a list as of such
date of all bank and securities accounts and lockboxes maintained by them, a
list of persons authorized to sign on behalf of each with respect to each such
account, a list of persons with authorized access to each such lockbox and a
list of the balances in such accounts and lockboxes as of the most recent
reasonably practicable date.

     sec. 3.20 Title to Assets.  NPMC, Silver Valley and Empresa has good valid
title to all of the properties and assets owned by it, free and clear of all
Liens except for Permitted Liens. Each owns or has the right to use all
properties and assets used in the operation of its businesses as currently
conducted.

     sec. 3.21 Access to Empresa information.  Asarco has provided Coeur access
to all relevant data and information with respect the Empresa Property.

     sec. 3.22 No Registration.  Asarco acknowledges that the Common Stock
acquired by it pursuant to the Transaction Agreement has not been registered
pursuant to the 1933 Act. Asarco acknowledges that (i) it acquired Common Stock
pursuant to the Transaction Agreement for its own account for investment and not
for distribution within the meaning of the 1933 Act, (ii) it is capable of
evaluating the merits and risks of acquiring the Common Stock and has the
financial ability to bear such risks, (iii) it has had access to such
information as it considers relevant for purposes of such acquisition and (iv)
for such time period as is required under the 1933 Act, certificates
representing such Common Stock will bear the following legend referring to the
1933 Act:

     The securities evidenced hereby have not been registered under the
     Securities Act of 1933, or the laws of any other jurisdiction, and may not
     be sold, transferred assigned, pledged or otherwise distributed unless
     there is an effective registration statement under such Act and applicable
     securities laws covering such securities or Coeur d'Alene Mines Corporation
     receives an opinion of counsel for the holder of the securities (concurred
     in by counsel for Coeur) stating that such sale, transfer, assignment,
     pledge, or
                                      A-10
<PAGE>   59

     distribution is exempt from the registration and prospectus delivery
     requirements of such Act and applicable securities laws.

     Asarco agrees not to, and agrees to cause each of its Affiliates not to,
sell or transfer, any Common Stock, unless a Registration Statement is effective
for such Common Stock under the 1933 Act or, in the opinion of counsel to Asarco
reasonably acceptable to Coeur, such transaction is exempt from the registration
requirements of the 1933 Act. In addition, for a period of five years from the
Closing Date, Asarco agrees that unless Asarco first obtains the consent of
Coeur it shall not sell Common Stock other than to an Affiliate of Asarco or
pursuant to a widely distributed public offering.

                                   ARTICLE IV

                            REPRESENTATIONS OF COEUR

     sec. 4.1 Representations of Coeur.  Coeur represents, warrants and agrees
as follows:

     sec. 4.2 Issuance of Stock; Due Authorization; Enforceability.  (a) The New
Coeur Stock shall be duly authorized, fully paid, nonassessable, previously
unissued shares of Coeur Common Stock (as defined below) not subject to, nor
issued in violation of, any preemptive rights and shall be free and clear of all
Liens. The New Coeur Stock shall have been duly authorized for listing on the
New York Stock Exchange subject only to notice of issuance, prior to the Closing
Date. The New Coeur Stock will not be registered pursuant to the Securities Act
at the time of the Closing. Coeur has full legal right, power and authority to
enter into this Agreement and to issue the shares of New Coeur Stock pursuant to
this Agreement. The delivery to Asarco of the New Coeur Stock pursuant to the
provisions of this Agreement will transfer to Asarco at Closing ownership of not
less than 24.5% of the Coeur Common Stock then outstanding.

     (b) Coeur has the requisite corporate power and authority to execute and
deliver this Agreement and to perform its obligations hereunder. The execution,
delivery and performance of this Agreement and the transactions contemplated
hereby by Coeur must be duly authorized and approved by the board of directors
of Coeur and the affirmative vote of holders of Coeur Common Stock representing
a majority of the Coeur Common Stock that is present and voting at a meeting at
which a quorum is present. No other corporate action on the part of Coeur is
necessary to authorize the execution, delivery and performance of this Agreement
and the transactions contemplated hereby by Coeur.

     (c) This Agreement and all other instruments and agreements to be executed
and delivered by Coeur as contemplated hereby when delivered in accordance with
the terms hereof, assuming the due execution and delivery of this Agreement and
each such other document by the other parties thereto, shall have been duly
executed and delivered by Coeur and shall be a valid and binding obligations of
Coeur, enforceable against Coeur in accordance with its terms, except to the
extent that its enforceability may be subject to applicable bankruptcy,
insolvency, reorganization, moratorium or similar laws affecting the enforcement
of creditors' rights generally and to general equitable principles.

     sec. 4.3 Existence and Good Standing.  Coeur is a corporation duly
organized, validly existing and in good standing under the laws of the State of
Idaho. Coeur has the power to own its property and to carry on its business as
now being conducted. Coeur is duly qualified to do business and is in good
standing in each jurisdiction in which the character or location of the
properties owned, leased or operated by Coeur or the nature of the business
conducted by Coeur makes such qualification necessary, except for such
jurisdictions where the failure to be so qualified or licensed and in good
standing would not have a material adverse effect on the Condition of Coeur and
its Subsidiaries (the "Coeur Subsidiaries"), taken as a whole.

     sec. 4.4 Capital Stock.  Coeur has an authorized capitalization consisting
of 60,000,000 shares of common stock $1.00, par value ("Coeur Common Stock"), of
which 21,900,579 shares are issued and outstanding, 743,483 shares are being
held in reserve for issuance upon the exercise of outstanding stock options
7,863,472 shares are reserved for issuance upon conversion of the outstanding
Coeur Mandatory Adjustable Convertible Securities (the "MARCS"), 1,791,278
shares are reserved for issuance upon conversion of the outstanding Coeur 6%
Convertible Subordinated Debentures Due 2002, 3,623,282 shares are reserved for
issuance upon

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<PAGE>   60

conversion of the outstanding Coeur 6 3/8% Convertible Subordinated Debentures
Due 2004, 6,147,679 shares are reserved for issuance upon conversion of the
outstanding Coeur 7 1/4% Convertible Subordinated Debentures Due 2005 and
1,059,211 shares are held in the Coeur treasury. All such outstanding shares
have been duly authorized and validly issued and are fully paid and
nonassessable and are not subject to, nor were they issued in violation of, any
preemptive rights. Except as described above or as described on Schedule 4.4
hereto, no shares of capital stock of Coeur are authorized, issued or
outstanding and there are no outstanding or authorized options, warrants,
rights, subscriptions, claims of any character, agreements, obligations,
convertible or exchangeable securities, or other commitments contingent or
otherwise, relating to capital stock of Coeur, pursuant to which Coeur is or may
become obligated to issue or purchase shares of Coeur Common Stock, any other
shares of capital stock of Coeur or any securities convertible into, exchanged
for, or evidencing the right to subscribe for, any shares of the capital stock
of Coeur. Coeur has no authorized or outstanding bonds, debentures, notes or
other indebtedness the holders of which have the right to vote (or which is
convertible or exchangeable into or exercisable for securities having the right
to vote) with the stockholders of Coeur or any of its subsidiaries on any matter
except as described on schedule 4.4 hereto.

     sec. 4.5 SEC Documents.  Coeur has furnished to Asarco each registration
statement, proxy statement or information statement, including all exhibits
thereto, prepared by Coeur since December 31, 1995, including, without
limitation: (a) its Annual Report on Form 10-K for its fiscal year ended
December 31, 1998 (the "Coeur Balance Sheet Date"), which includes the
consolidated balance sheet for Coeur as of such date (the "Coeur Balance Sheet")
and Coeur's Quarterly Reports on Form 10-Q and Reports on Form 8-K filed since
the filing of such Annual Report; and (b) its proxy statement for its annual
meeting of stockholders held on May 12, 1998, each of (a) and (b) in the form
(including exhibits and any amendments thereto) filed with the SEC, the items in
(a) being the "Coeur Financial Reports". As of their respective dates, the items
in (a) and (b) (including, without limitation, any financial statements or
schedules included or incorporated by reference therein, were prepared in all
material respects in accordance with the applicable requirements of the Exchange
Act and the respective rules and regulations thereunder and did not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make the statements made therein, in the light
of the circumstances under which they were made, not misleading. The 1997 and
1998 consolidated financial statements of Coeur and the Coeur Subsidiaries
included in or incorporated by reference into the Coeur Financial Reports
(including the related notes and schedules) present fairly, in all material
respects, the consolidated financial position of Coeur at December 31, 1997 and
1998, and the consolidated results of operations and cash flows for such fiscal
years in conformity with GAAP. Since the Coeur Balance Sheet Date there has been
(x) no material adverse change in the Condition of Coeur and the Coeur
Subsidiaries, taken as a whole, and (y) no change in the Condition of Coeur or
the Coeur Subsidiaries except in the ordinary course of business, and, to the
best knowledge of Coeur, no fact or condition exists or is contemplated or
threatened which is reasonably likely to cause such a change in the future.

     sec. 4.6 Books and Records.  The respective minute books of Coeur and the
Coeur Subsidiaries, as previously made available to Asarco and their
representatives, contain accurate records of all meetings of, and corporate
action taken by (including action taken by written consent), the respective
shareholders and boards of directors of Coeur and each Coeur Subsidiary.

     sec. 4.7 Title to Personal Properties; Encumbrances.  Except for properties
and assets which have been sold or otherwise disposed of in the ordinary course
of business, Coeur and each Coeur Subsidiary has good, valid and marketable
title to (a) all of its material personal properties and material assets
(tangible and intangible), including, without limitation, all of the properties
and assets reflected in the Coeur Balance Sheet, except as indicated in the
notes thereto, and (b) all of the material personal properties and material
assets purchased by Coeur or any Coeur Subsidiary since the Coeur Balance Sheet
Date; in each case free and clear of all Liens except Permitted Liens.

     sec. 4.8 Consents and Approvals; No Violations.  (a) Other than in
connection with or in compliance with the specific provisions of the HSR Act, or
as set forth on Schedule 4.8 attached hereto, the execution and delivery of this
Agreement by Coeur and the consummation by Coeur of the transactions
contemplated hereby will not: (1) violate any provision of the certificate of
incorporation, by-laws or other organizational document
                                      A-12
<PAGE>   61

of Coeur; (2) violate any statute, ordinance, rule, regulation, order or decree
of any court or of any governmental or regulatory body, agency or authority
applicable to Coeur or by which any of its properties or assets may be bound;
(3) require Coeur to make or obtain any filing with, or permit, consent or
approval of, or give any notice to, any governmental or regulatory body, agency
or authority; or (4) result in a violation or breach of, conflict with,
constitute (with or without due notice or lapse of time or both) a default (or
give rise to any right of termination, cancellation, payment or acceleration)
under, or result in the creation of any Lien upon any of the properties or
assets of Coeur under, any of the terms, conditions or provisions of any note,
bond, mortgage, indenture, license, franchise, permit, agreement, lease,
franchise agreement or other instrument or obligation to which Coeur is a party,
or by which Coeur or any of its respective properties or assets is bound except
in the case of clauses (3) and (4) above, for such violations, filings, permits,
consents, approvals, notices, breaches or conflicts which would not have a
material adverse effect on (i) the Condition of Coeur and the Coeur
Subsidiaries, taken as a whole, or (ii) the ability of Coeur to consummate the
transactions contemplated hereby or to perform its obligations hereunder.

     (b) Other than in connection with or in compliance with the specific
provisions of the HSR Act, or as set forth on Schedule 4.8 attached hereto, the
execution and delivery of this Agreement by Coeur and the consummation by Coeur
of the transactions contemplated hereby will not: (1) violate any provision of
the certificate of incorporation or by-laws of any of the Coeur Subsidiaries;
(2) violate any statute, ordinance, rule, regulation, order or decree of any
court or of any governmental or regulatory body, agency or authority applicable
to any of the Coeur Subsidiaries or by which any of their respective properties
or assets may be bound; (3) require any of the Coeur Subsidiaries to make or
obtain any filing with or permit, consent or approval of or give any notice to,
any governmental or regulatory body, agency or authority; or (4) result in a
violation or breach of, conflict with, constitute (with or without due notice or
lapse of time or both) a default (or give rise to any right of termination,
cancellation, payment or acceleration) under, or result in the creation of any
Lien upon any of the properties or assets of any of the Coeur Subsidiaries
under, any of the terms, conditions or provisions of any note, bond, mortgage,
indenture, license, franchise, permit, agreement, lease, franchise agreement or
other instrument or obligation to which any of the Coeur Subsidiaries is a
party, or by which it or any of their respective properties or assets is bound
except in the case of clauses (3) and (4) above, for such violations, filings,
permits, consents, approvals, notices, breaches or conflicts which would not
have a material adverse effect on (i) the Condition of Coeur and the Coeur
Subsidiaries, taken as a whole, or (ii) the ability of Coeur to consummate the
transactions contemplated hereby or to perform its obligations hereunder.

     sec. 4.9 Litigation.  Except as set forth in note (N) to the Coeur
Financial Report, there is no action, suit, proceeding at law or in equity,
arbitration or administrative or other proceeding by or before (or to the best
knowledge of Coeur any investigation by) any governmental or other
instrumentality or agency, pending, or, to the best knowledge of Coeur,
threatened, against or affecting Coeur or any of the Coeur Subsidiaries, or any
of their properties or rights which would materially adversely affect the right
or ability of Coeur to perform its obligations pursuant to this Agreement or
which would materially adversely affect the right or ability of Coeur or any of
the Coeur Subsidiaries to carry on their respective business as now conducted,
or to own their respective assets, or which would materially adversely affect
the Condition of Coeur and the Coeur Subsidiaries, taken as a whole. Neither
Coeur nor any of the Coeur Subsidiaries is subject to any judgment, order or
decree entered in any lawsuit or proceeding which would materially adversely
affect the right or ability of Coeur to perform its obligations pursuant to this
Agreement or which would have a material adverse effect on the Condition of
Coeur and the Coeur Subsidiaries, taken as a whole.

     sec. 4.10 Taxes.

     (a) Coeur has timely filed or caused to be timely filed with the
appropriate taxing authorities all Returns that are required to be filed by, or
with respect to, Coeur on or prior to the Closing Date. The Returns have
accurately reflected and will accurately reflect all liability for Taxes of
Coeur for the periods covered thereby. Coeur has timely paid the taxes shown on
such returns as due and owing.

     (b) With respect to any Taxes of Coeur and its Subsidiaries not yet due and
payable, adequate reserves and accruals in all material respects for such Taxes
have been made in the Financial Statements or in the books and records of these
companies.

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<PAGE>   62

     (c) Neither Coeur or its Subsidiaries have received written notice from any
taxing authority of any material deficiency, claim or other dispute relating to
the payment or assessment of any Taxes for any period which remains unsettled at
the date hereof.

     (d) Neither Coeur or its Subsidiaries have executed any waiver of any
statute of limitations on the assessment or collection of Taxes or executed any
agreement now in effect extending the period of time to assess or collect any
Taxes.

     (e) Neither Coeur or its Subsidiaries are or have been a United States real
property holding corporation within the meaning of Section 897 (c) (2) of the
Code.

     sec. 4.11 Liabilities.  Neither Coeur nor any of the Coeur Subsidiaries has
any material outstanding claims, liabilities or indebtedness, contingent or
otherwise, except as set forth in the Coeur Balance Sheet or referred to in the
footnotes thereto, other than liabilities to trade creditors incurred subsequent
to the Coeur Balance Sheet Date in the ordinary course of business not involving
borrowings by Coeur or any Coeur Subsidiary. Neither Coeur nor any of the Coeur
Subsidiaries is in material default in respect of the terms or conditions of any
material indebtedness.

     sec. 4.12 Compliance with Laws.  Each of Coeur and the Coeur Subsidiaries
is in compliance in all material respects with all applicable laws, statutes,
ordinances, regulations, orders, judgments and decrees of any government or
political subdivision thereof, whether federal, state, or local and whether
domestic or foreign, or any agency or instrumentality thereof, or any court or
arbitrator, and has not received any notice that any violation of the foregoing
is being or may be alleged.

     sec. 4.13 Employment Relations.  Except as disclosed on Schedule 4.13, (a)
Each of Coeur and the Coeur Subsidiaries is in substantial compliance with all
federal, state or other applicable laws, domestic or foreign, respecting
employment and employment practices, terms and conditions of employment and
wages and hours, and has not and is not engaged in any unfair labor practice.

     (b) No unfair labor practice complaint against Coeur or any of the Coeur
Subsidiaries is pending before the National Labor Relations Board or any other
similar board or tribunal.

     (c) There is no labor strike, dispute, slowdown or stoppage actually
pending or threatened against or involving Coeur or any of the Coeur
Subsidiaries.

     For the purpose of this paragraph 4.13(a),(b), and (c) only Silver Valley
which is owned 50% each by Coeur and Asarco is deemed to be an Asarco subsidiary
and not a Coeur subsidiary.

     sec. 4.14 Environmental Laws and Regulations.  Except as set forth in note
(N) to the Coeur Financial Reports:

          (a) Coeur and the Coeur Subsidiaries are in compliance in all material
     respects with all Environmental Laws and the requirements of any permits
     issued under such Environmental Laws with respect to any Coeur Property;

          (b) There are no past, pending or, to the best knowledge of Coeur,
     threatened material Environmental Claims against Coeur, any of the Coeur
     Subsidiaries or any Coeur Property; and

          (c) To the best knowledge of Coeur, there are no facts, circumstances,
     conditions or occurrences regarding any Coeur Property that could
     reasonably be anticipated: (i) to form the basis of a material
     Environmental Claim against Coeur, any of the Coeur Subsidiaries or any
     Coeur Property or assets; or (ii) to cause such Coeur Property or assets to
     be subject to any material restrictions on its ownership, occupancy, use or
     transferability under any Environmental Law.

     sec. 4.15 No Changes Since Coeur Balance Sheet Date.  Since the Coeur
Balance Sheet Date, neither Coeur nor any of the Coeur Subsidiaries has taken
any action which, if taken subsequent to the execution of this Agreement and on
or prior to the Closing Date, would constitute a breach of Coeur's agreements
set forth in clauses (a) through and including (o) of Section 6.2.

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<PAGE>   63

     sec. 4.16 Brokers' or Finders' Fees.  No agent, broker, person or firm
acting on behalf of Coeur is, or will be, entitled to any commission or brokers'
or finders' fees from any of the Parties hereto, or from any Affiliate of any of
the Parties hereto, in connection with any of the transactions contemplated by
this Agreement.

                                   ARTICLE V

                              COVENANTS OF ASARCO

     sec. 5.1 Conduct of Business of NPMC, Silver Valley and Empresa.  During
the period from the date of this Agreement to the Closing, Asarco shall cause
NPMC, Silver Valley and Empresa to conduct their respective operations according
to their ordinary and usual course of business and to use their best efforts to
preserve intact their respective business organizations, keep available the
services of their officers and employees and maintain satisfactory relationships
with licensors, suppliers, distributors, clients and others having business
relationships with them. Notwithstanding the immediately preceding sentence,
prior to the Closing, except as may be first approved in writing by Coeur or as
is otherwise specifically permitted or required by this Agreement, Asarco will
cause:

          (a) each of NPMC's, Silver Valley's and Empresa's respective
     certificates of incorporation and by-laws (or comparable governing
     documents) to be maintained in their form on the date of this Agreement;

          (b) NPMC, Silver Valley and Empresa not to enter into or materially
     amend any material contract or commitment including any labor-management
     agreement except in the ordinary course of business;

          (c) NPMC, Silver Valley and Empresa not to authorize for issuance,
     issue, sell, deliver or agree or commit to issue, sell or deliver any stock
     of any class or any other securities or to make any other changes in their
     respective capital structures;

          (d) NPMC, Silver Valley and Empresa not to incur or modify any
     liability or obligation of any nature (whether accrued, absolute,
     contingent or otherwise), except in the ordinary course of business
     consistent with past practice;

          (e) NPMC, Silver Valley and Empresa not to permit any of their
     respective material assets to be subject to any Lien (other than Permitted
     Liens);

          (f) NPMC, Silver Valley and Empresa not to sell, transfer or otherwise
     dispose of any material assets except in the ordinary course of business
     consistent with past practice, or make any acquisition of all or any part
     of the properties, capital stock or business of any other Person;

          (g) NPMC, Silver Valley and Empresa not to declare, pay or set aside
     any dividend or make any distribution with respect to, or split, combine,
     redeem or reclassify, purchase or otherwise acquire directly, or
     indirectly, any shares of their respective capital stock;

          (h) NPMC, Silver Valley and Empresa not to make any tax election or
     settle and/or compromise any material tax liability;

          (i) NPMC, Silver Valley and Empresa not to make any change in any
     method of accounting or auditing practice, or replace the auditors
     responsible for the auditing of each of NPMC, Silver Valley and Empresas'
     books, records or financial statements;

          (j) NPMC not to pay, discharge or satisfy any claims, liabilities or
     obligations (absolute, accrued, asserted or unasserted, contingent or
     otherwise), other than payment, discharge or satisfaction in the ordinary
     course of business and consistent with past practice of liabilities
     reflected or reserved against in their respective financial reports;

          (k) Silver Valley not to pay, discharge or satisfy any claims,
     liabilities or obligations (absolute, accrued, asserted or unasserted,
     contingent or otherwise), other than payment, discharge or satisfaction in
     the ordinary course of business and consistent with past practice of
     liabilities reflected or reserved against in their respective financial
     reports;

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<PAGE>   64

          (l) Empresa not to pay, discharge or satisfy any claims, liabilities
     or obligations (absolute, accrued, asserted or unasserted, contingent or
     otherwise), other than payment, discharge or satisfaction in the ordinary
     course of business and consistent with past practice of liabilities
     reflected or reserved against in their respective financial reports; and

          (m) NPMC, Silver Valley and Empresa not to commit or agree, whether or
     not in writing, to do any of the foregoing.

Asarco agrees not to take any action, or omit to take any action, which would
cause the representations and warranties contained in Article III hereof to be
untrue or incorrect. During the period from the date of this Agreement to the
Closing, Asarco shall cause NPMC, Silver Valley and Empresa to confer on a
regular and frequent basis with one or more designated representatives of Coeur
to report material operational matters and to report the general status of
ongoing operations. Asarco shall cause NPMC, Silver Valley and Empresa to notify
Coeur of any unexpected emergency or other change in the normal course of its
business or in the operation of its properties and of any governmental
complaints, investigations or hearings (or communications indicating that the
same may be contemplated), adjudicatory proceedings, or submissions involving
any material property of NPMC, Silver Valley, Empresa, any NPMC Subsidiary,
Silver Valley Subsidiary or any Empresa Subsidiary, and to keep Coeur fully
informed of such events and permit its representatives prompt access to all
materials prepared in connection therewith.

     sec. 5.2 Required Material.  Asarco agrees to furnish to Coeur material,
reasonably necessary, including financial statements (audited, at Coeur's cost,
if necessary), to assist Coeur in preparing a proxy statement to be sent to its
shareholders seeking approval of the issuance to Asarco of New Coeur shares
required by the terms of this Agreement.

                                   ARTICLE VI

                               COVENANTS OF COEUR

     sec. 6.1 Coeur Shareholder Approval; Voting and issue of the New Coeur
Shares.  After execution of this Agreement, if the Coeur board of directors
approves this Agreement, Coeur shall take all action necessary, in accordance
with applicable law and its certificate of incorporation and by-laws, to convene
a meeting of the holders of the outstanding shares of Coeur Common Stock and
MARCS (together, the "Capital Stock") at its regularly scheduled or rescheduled
annual meeting, and if such a meeting is not feasible, to hold a special meeting
of holders of Coeur Capital Stock not later than September 10, 1999 to consider
and vote upon the approval of the issuance of the New Coeur Stock pursuant to
this Agreement. Coeur shall take all reasonable and lawful action to solicit
proxies from its shareholders pursuant to proxy materials (which proxy materials
shall be submitted in draft form for review and comment by Asarco's counsel)
which recommend that such holders of Coeur Capital Stock vote in favor of the
issuance of the New Coeur Stock pursuant to this Agreement; provided, however
that the board of directors of Coeur shall not be required to make such
recommendation if the board of directors of Coeur reasonably determines in good
faith, based as to legal matters on the written advice of outside legal counsel
acceptable to Asarco, acting reasonably, that such action would violate its
fiduciary duties. Asarco shall coordinate and cooperate with Coeur with respect
to the timing of such meeting and Coeur shall hold such meeting as soon as is
practicable.

     sec. 6.2 Conduct of Business of Coeur.  During the period from the date of
this Agreement to the Closing, Coeur shall and shall cause each of the Coeur
Subsidiaries to conduct their respective operations only according to their
ordinary and usual course of business and to use their best efforts to preserve
intact their respective business organizations, keep available the services of
their officers and employees and maintain satisfactory relationships with
licensors, suppliers, distributors, clients and others having business
relationships with them. Notwithstanding the immediately preceding sentence,
prior to the Closing, except as may be first approved in writing by Asarco or as
is otherwise specifically permitted or required by this Agreement, Coeur shall:

          (a) not make any material amendment of the By-Laws or Articles of
     Incorporation of Coeur which would be inconsistent with the principles of
     this Agreement or the Shareholder's Agreement;
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<PAGE>   65

          (b) not increase the number of directors of Coeur above eleven;

          (c) not authorize and shall cause each of the Coeur Subsidiaries to
     not authorize for issuance, issuing, selling, delivering or agreeing or
     committing to issue, sell or deliver (whether through the issuance or
     granting of Consolidated Coeur Options or otherwise) any stock of any class
     or any other securities, except for the issuance of capital stock by Coeur
     at fair market value for cash in aggregate value not in excess of
     $100,000,000 and not to make any other changes in its capital structure;

          (d) not incur or modify and shall cause each of the Coeur Subsidiaries
     not to incur or modify any liability or obligation of any nature (whether
     accrued, absolute, contingent or otherwise), except in the ordinary course
     of business consistent with past practice;

          (e) not permit and shall cause each of the Coeur Subsidiaries not to
     permit any of their respective material assets to be subject to any Lien
     (other than Permitted Liens) in excess of $100,000,000 in aggregate value;

          (f) not to sell, transfer or otherwise dispose of and shall cause each
     of the Coeur Subsidiaries not to sell, transfer or otherwise dispose of any
     material assets except in the ordinary course of business consistent with
     past practice, or make any acquisition of all or any part of the
     properties, capital stock or business of any other Person;

          (g) not make and shall cause each of the Coeur Subsidiaries not to
     make any capital expenditure budgets, capital expenditure or commitment
     therefore including approval of capital expenditure budgets or any project
     requiring capital expenditures in excess of $100,000,000;

          (h) not remove or replace the Chief Executive Officer of Coeur;

          (i) not declare, pay or set aside and shall cause each of the Coeur
     Subsidiaries to not declare, pay or set aside any dividend or make any
     distribution with respect to, or split, combine, redeem or reclassify,
     purchase or otherwise acquire directly, or indirectly, any shares of its
     capital stock;

          (j) not increase and shall cause each of the Coeur Subsidiaries not to
     increase any indebtedness for borrowed money, except current borrowings and
     standard lines of credit or borrowing from banks to be utilized or secured
     by Coeur or the Coeur Subsidiaries less than $100,000,000 in aggregate
     consistent with past practice; provided, however, no further approval is
     required for debt restructuring plans currently under consideration;

          (m) not discharge auditors when a material dispute exists in
     connection with the auditing of Coeur's books, records and/or financial
     statements;

          (n) not pay, discharge or satisfy and shall cause each of the Coeur
     Subsidiaries not to pay, discharge or satisfy any claims, liabilities or
     obligations (absolute, accrued, asserted or unasserted, contingent or
     otherwise), other than payment, discharge or satisfaction in the ordinary
     course of business and consistent with past practice of liabilities
     reflected or reserved against in the financial statements of Coeur; and

          (o) not commit or agree, whether or not in writing, and shall cause
     each of the Coeur Subsidiaries not to commit or agree, whether or not in
     writing, to do any of the foregoing.

     Coeur agrees not to take any action, or omit to take any action, which
would cause the representations and warranties contained in Article IV hereof to
be untrue or incorrect. During the period from the date of this Agreement to the
Closing, Coeur shall confer on a regular and frequent basis with one or more
designated representatives of Asarco to report material operational matters and
to report the general status of ongoing operations. Coeur shall and shall cause
each of the Coeur Subsidiaries to notify Asarco of any unexpected emergency or
other change in the normal course of its business or in the operation of its
properties and of any governmental complaints, investigations or hearings (or
communications indicating that the same may be contemplated), adjudicatory
proceedings, or submissions involving any material property of Coeur or any of
the Coeur Subsidiaries, and to keep Asarco fully informed of such events and
permit its representatives prompt access to all materials prepared in connection
therewith.

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                                  ARTICLE VII

                      CONDITIONS OF OBLIGATIONS OF ASARCO

     sec. 7.1 Conditions of Obligations of Asarco.  The exchange by Asarco of
the Asarco Interests for the New Coeur Stock at the Closing on the Closing Date
is conditioned upon satisfaction, at or prior to the Closing, of the following
conditions:

     sec. 7.2 Approval of Asarco Board of Directors.  The board of directors of
Asarco shall have duly authorized and approved the execution, delivery and
performance of this Agreement and the transactions contemplated hereby by
Asarco.

     sec. 7.3 Approval of Coeur Stockholders and Directors.  Holders of at least
a majority of the Coeur Capital Stock voting thereon shall have approved the
issuance of the New Coeur Stock pursuant to this Agreement and the transactions
contemplated hereby. The board of directors of Coeur shall have duly authorized
and approved the execution, delivery and performance by Coeur of this Agreement
and the Shareholder Agreement and the transactions contemplated hereby and
thereby. As part of such approvals, Coeur shall have taken all necessary action
to (i) exclude or exempt from all provisions of Coeur's Shareholder's Rights
Plan, Asarco's acquisition and ownership of up to 25% of the issued and
outstanding Coeur Common Stock, (ii) approve Asarco's acquisition of, and the
consideration paid by Asarco for, the New Coeur Stock for purposes of any fair
price provision applicable to Coeur so that no restrictions or obligations shall
be imposed on Asarco thereunder, (iii) exclude Asarco from any restrictions or
obligations that may be imposed by Idaho law (including the Idaho Business
Corporations Act) by reason of Asarco's acquisition and ownership of up to 25%
of Coeur Common Stock and (iv) determine that no adjustment to the conversion
price of any outstanding securities that are convertible into Coeur Common Stock
is required by reason of this Agreement that could increase the amount of Coeur
Common Stock issued upon conversion.

     sec. 7.4 Truth of Representations and Warranties.  The representations and
warranties of Coeur contained in this Agreement or in any Schedule attached
hereto shall be true and correct in all material respects (except to the extent
such representations and warranties contain a materiality or knowledge
qualification, in which case they shall be true and correct in all respects as
so qualified) on and as of the Closing with the same effect as though such
representations and warranties had been made on and as of such time, and Coeur
shall have delivered to Asarco a certificate, dated the Closing Date, to such
effect. The statement that the representations and warranties are true in all
material respects is deemed to include a statement that a representation did not
omit to state a material fact with respect to such representation that is
necessary to make such representation not misleading in the light of the
circumstances in which it was made and with respect to the specific subject
matter of such representation.

     sec. 7.5 Performance of Agreements.  All of the agreements of Coeur, as
specified in Articles 2,4, 6 and 7 to be performed prior to the Closing pursuant
to the terms of this Agreement shall have been duly performed in all material
respects, and Coeur shall have delivered to Asarco a certificate of an officer,
dated the Closing Date, to such effect.

     sec. 7.6 Opinion of Coeur's Counsel.  Coeur shall have furnished Asarco
with a favorable opinion, dated the Closing Date, of William Boyd, in form and
substance satisfactory to Asarco and its counsel, to the effect set forth in
Exhibit 2 attached hereto.

     sec. 7.7 Good Standing and Other Certificates.  Coeur shall have delivered
to Asarco: (a) copies of Coeur's certificate of incorporation and the
certificate of incorporation of each Coeur Subsidiary, including all amendments
thereto, in each case certified by the Secretary of State or other appropriate
official of its jurisdiction of incorporation; (b) a certificate from the
Secretary of State or other appropriate official of their respective
jurisdictions of incorporation to the effect that each of Coeur and the Coeur
Subsidiaries is in good standing or subsisting in such jurisdiction and listing
all charter documents of Coeur and such Coeur Subsidiaries on file; (c) a
certificate from the Secretary of State or other appropriate official in each
state in which Coeur or any Coeur Subsidiary is qualified to do business to the
effect that Coeur or such Coeur Subsidiary is in good standing in such state;
and (d) a copy of the by-laws of Coeur and each Coeur

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<PAGE>   67

Subsidiary, certified by the Secretary of Coeur and each Coeur Subsidiary as
being true and correct and in effect on the Closing Date.

     sec. 7.8 No Material Adverse Change.  Prior to the Closing, there shall
have been no Material Adverse Change in the Condition of Coeur and the Coeur
Subsidiaries, taken as a whole, and Coeur shall have delivered to Asarco a
certificate, dated the Closing Date, to such effect.

     sec. 7.9 No Litigation Threatened.  No action or proceedings shall have
been instituted or threatened before a court or other government body or by any
public authority to restrain or prohibit any of the transactions contemplated
hereby, and Coeur shall have delivered to Asarco a certificate of an officer,
dated the Closing Date, to such effect.

     sec. 7.10 Execution of Shareholder Agreement.  Coeur shall have entered
into a shareholder agreement substantially in the form of Exhibit 1 attached
hereto.

     sec. 7.11 HSR Act Waiting Periods.  All applicable waiting periods under
the HSR Act with respect to the transactions contemplated by this Agreement
shall have expired or been terminated.

     sec. 7.12 Approvals.  All other governmental and third party consents,
waivers and approvals, if any, disclosed on any Schedule attached hereto or
necessary to permit the consummation of the transactions contemplated by this
Agreement shall have been received.

     sec. 7.13 Statutes.  No statute, rule, regulation, executive order, decree
or order of any kind shall have been enacted, entered, promulgated or enforced
by any court or governmental authority which prohibits the consummation of the
transactions contemplated by this Agreement or has the effect of making them
illegal.

     sec. 7.14 Proceedings.  All proceedings to be taken in connection with the
transactions contemplated by this Agreement and all documents incident thereto
shall be satisfactory in form and substance to Asarco and its counsel, and
Asarco shall have received copies of all such documents and other evidences as
it or its counsel may reasonably request in order to establish the consummation
of such transactions and the taking of all proceedings in connection therewith.

                                  ARTICLE VIII

                       CONDITIONS OF OBLIGATIONS OF COEUR

     sec. 8.1 Conditions of Obligations of Coeur.  The exchange by Coeur of the
New Coeur Stock for the Asarco Interests at the Closing on the Closing Date is
conditioned upon satisfaction, at or prior to the Closing, of the following
conditions:

     sec. 8.2 Approval of Coeur Board of Directors.  The board of directors of
Coeur shall have duly authorized and approved the execution, delivery and
performance of this Agreement and the transactions contemplated hereby by Coeur.

     sec. 8.3 Approval of Coeur Shareholders.  Holders of a majority of the
Coeur Capital Stock voting thereon shall have approved the issuance of the New
Coeur Stock pursuant to this Agreement and the transactions contemplated hereby.

     sec. 8.4 Truth of Representations and Warranties.  The representations and
warranties of Asarco contained in this Agreement or in any Schedule attached
hereto shall be true and correct in all material respects (except to the extent
such representations and warranties contain a materiality or knowledge
qualification, in which case they shall be true and correct in all respects as
so qualified) on and as of the Closing with the same effect as though such
representations and warranties had been made on and as of such time, and Asarco
shall have delivered to Coeur a certificate, dated the Closing Date, to such
effect. . The statement that the representations and warranties are true in all
material respects is deemed to include a statement that a representation did not
omit to state a material fact with respect to such representation that is
necessary to make such representation not misleading in the light of the
circumstances in which it was made and with respect to the specific subject
matter of such representation.

                                      A-19
<PAGE>   68

     sec. 8.5 Performance of Agreements.  All of the agreements of Asarco to be
performed prior to the Closing pursuant to the terms of this Agreement shall
have been duly performed in all material respects, and Asarco shall have
delivered to Coeur a certificate of an officer, dated the Closing Date, to such
effect.

     sec. 8.6 Opinion of Asarco's Counsel.  Asarco shall have furnished Coeur
with a favorable opinion, dated the Closing Date, of its Associate General
Counsel, in form and substance satisfactory to Coeur and its counsel, to the
effect set forth in Exhibit 3 attached hereto.

     sec. 8.7 Good Standing and Other Certificates.  Asarco shall have delivered
to Coeur: (a) copies of Asarco's certificate of incorporation and the
certificate of incorporation of NPMC, Silver Valley and Empresa, including all
amendments thereto, in each case certified by the Secretary of State or other
appropriate official of its jurisdiction of incorporation; (b) a certificate
from the Secretary of State or other appropriate official of their respective
jurisdictions of incorporation to the effect that NPMC, Silver Valley and
Empresa are in good standing or subsisting in such jurisdiction and listing all
charter documents of NPMC, Silver Valley and Empresa on file; (c) a certificate
from the Secretary of State or other appropriate official in each state in which
NPMC, Silver Valley and Empresa is qualified to do business to the effect that
NPMC and Empresa is in good standing in such state; and (d) a copy of the
by-laws of NPMC, Silver Valley and Empresa certified by the Secretary of NPMC,
Silver Valley and Empresa as being true and correct and in effect on the Closing
Date.

     sec. 8.8 No Material Adverse Change.  Prior to the Closing, there shall
have been no Material Adverse Change in the Condition of NPMC, Silver Valley and
Empresa, taken as a whole, and Asarco shall have delivered to Coeur a
certificate of an officer, dated the Closing Date, to such effect.

     sec. 8.9 No Litigation Threatened.  No action or proceedings shall have
been instituted or threatened before a court or other government body or by any
public authority to restrain or prohibit any of the transactions contemplated
hereby, and Asarco shall have delivered to Coeur a certificate, dated the
Closing Date, to such effect.

     sec. 8.10 Execution of Shareholder Agreement.  Asarco shall have entered
into a shareholder agreement substantially in the form of Exhibit 1 attached
hereto.

     sec. 8.11 HSR Act Waiting Periods.  All applicable waiting periods under
the HSR Act with respect to the transactions contemplated by this Agreement
shall have expired or been terminated.

     sec. 8.12 Governmental Approvals.  All other governmental and third party
consents, waivers and approvals, if any, disclosed on any Schedule attached
hereto or necessary to permit the consummation of the transactions contemplated
by this Agreement shall have been received.

     sec. 8.13 Statutes.  No statute, rule, regulation, executive order, decree
or order of any kind shall have been enacted, entered, promulgated or enforced
by any court or governmental authority which prohibits the consummation of the
transactions contemplated by this Agreement or has the effect of making them
illegal.

     sec. 8.14 Proceedings.  All proceedings to be taken in connection with the
transactions contemplated by this Agreement and all documents incident thereto
shall be satisfactory in form and substance to Coeur and its counsel, and Coeur
shall have received copies of all such documents and other evidences as it or
its counsel may reasonably request in order to establish the consummation of
such transactions and the taking of all proceedings in connection therewith.

                                   ARTICLE IX

                           SURVIVAL; INDEMNIFICATION

     sec. 9.1 Survival.  The respective representations and warranties of Asarco
and Coeur contained in this Agreement shall survive for the applicable statute
of limitations period.

     sec. 9.2 Indemnification.  (a) Asarco agrees to indemnify and hold Coeur
and its Affiliates and its respective officers, directors, employees, agents and
their respective successors and assigns (each a "Coeur

                                      A-20
<PAGE>   69

Indemnitee") harmless from damages, losses, liabilities, obligations, claims of
any kind, interest or expenses (including, without limitation, reasonable
attorneys' fees and expenses) ("Loss"), suffered or paid, directly or
indirectly, as a result of, in connection with or arising out of: (i) the
failure of any representation or warranty made by Asarco in this Agreement to be
true and correct in all material respects (except to the extent such
representations and warranties contain a materiality or knowledge qualification,
in which case they shall be true and correct in all respects as so qualified) as
of the date of this Agreement and as of the Closing; and (ii) any material
breach or alleged material breach by Asarco of any of its covenants or
agreements contained herein.

     (b) Coeur agrees to indemnify, defend and hold Asarco and its Affiliates
and their respective officers, directors, employees, agents, successors and
assigns (each an "Asarco Indemnitee") harmless from Losses suffered or paid,
directly or indirectly, as a result of, in connection with or arising out of:
(i) the failure of any representation or warranty made by Coeur in this
Agreement to be true and correct in all respects (except to the extent such
representations and warranties contain a materiality or knowledge qualification,
in which case they shall be true and correct in all respects as so qualified) as
of the date of this Agreement and as of the Closing; and (ii) any material
breach or alleged material breach by Coeur of any of the covenants or agreements
contained herein and (iii) all liabilities and obligations directly related to
the Asarco Interests transferred to Coeur which are reflected on, or reserved
against, in the Silver Valley Balance Sheet, the NPMC Balance Sheet, and the
Empresa Balance Sheet to the extent reflected and reserved against and which are
set forth in Schedule 9.2(b), together with all liabilities and obligations
which arise subsequent to Closing resulting from Coeur's ownership or operation
of the Asarco Interests being transferred.

     (c) The obligations to indemnify and hold harmless pursuant to this Section
9.2 shall survive the consummation of the transactions contemplated by this
Agreement for the time periods set forth in sec.9.1, except for claims for
indemnification asserted prior to the end of such periods, which claims shall
survive until final resolution thereof.

     (d) No Person shall be entitled to recovery for Losses pursuant to sections
9.2(a) and 9.2(b) until the total amount of Losses exceeds $100,000; provided,
that to the extent the amount of Losses exceeds such amount, the Indemnified
Party shall be entitled to recover only the amount of Losses in excess of such
amount.

     sec. 9.3 Third Party Claims.  If a claim by a third party is made against
any Person entitled to indemnification pursuant to Section 9.2 hereof (an
"Indemnified Party"), and if such party intends to seek indemnity with respect
thereto under this Article IX, such Indemnified Party shall promptly notify the
party obligated to indemnify such Indemnified Party (the "Indemnifying Party")
of such claims; provided, that the failure to so notify shall not relieve the
Indemnifying Party of its obligations hereunder, except to the extent that the
Indemnifying Party is actually and materially prejudiced thereby. The
Indemnifying Party shall have 20 Business Days after receipt of such notice to
assume the conduct and control, through counsel reasonably acceptable to the
Indemnified Party at the expense of the Indemnifying Party, of the settlement or
defense thereof; provided that: (i) the Indemnifying Party shall permit the
Indemnified Party to participate in such settlement or defense through counsel
chosen by such Indemnified Party; provided that the fees and expenses of such
counsel shall be borne by such Indemnified Party; and (ii) the Indemnifying
Party shall promptly assume and hold such Indemnified Party harmless from and
against the full amount of any Loss resulting therefrom. So long as the
Indemnifying Party is reasonably contesting any such claim in good faith, the
Indemnified Party shall not pay or settle any such claim. Notwithstanding the
foregoing, the Indemnified Party shall have the right to pay or settle any such
claim; provided that in such event it shall waive any right to indemnity
therefor by the Indemnifying Party for such claim unless the Indemnifying Party
shall have consented to such payment or settlement. If the Indemnifying Party
does not notify the Indemnified Party within 20 Business Days after the receipt
of the Indemnified Party's notice of a claim of indemnity hereunder that it
elects to undertake the defense thereof, the Indemnified Party shall have the
right to contest, settle or compromise the claim but shall not thereby waive any
right to indemnity therefor pursuant to this Agreement. The Indemnifying Party
shall not, except with the consent of the Indemnified Party, enter into any
settlement that does not include as an unconditional term thereof the giving by
the Person or Persons asserting such claim

                                      A-21
<PAGE>   70

to all Indemnified Parties of an unconditional release from all liability with
respect to such claim or consent to entry of any judgment.

                                   ARTICLE X

                          TERMINATION AND ABANDONMENT

     sec. 10.1 Termination.  This Agreement may be terminated and the
transactions contemplated hereby may be abandoned, at any time prior to the
Closing:

          (a) by mutual consent of Asarco, on the one hand, and of Coeur, on the
     other hand;

          (b) by either Party if the Closing shall not have occurred by
     September 30, 1999; provided, that the right to terminate this Agreement
     under this Section 10.1(b) shall not be available to a Party whose failure
     to fulfill any obligation under this Agreement shall be the cause of the
     failure of the Closing to occur on or before such date;

          (c) by Asarco, on the one hand, or Coeur, on the other hand, if there
     has been a material breach of any covenant or a material breach of any
     representation or warranty of Coeur or Asarco, respectively, provided, that
     any such breach of a covenant or representation or warranty has not been
     cured within 10 Business Days following receipt by the breaching Party of
     written notice of such breach;

          (d) by either Party, if there shall be any law or regulation of any
     competent authority that makes consummation of the transactions
     contemplated hereby, illegal or otherwise prohibited or if any judgment,
     injunction, order or decree of any competent authority prohibiting such
     transactions is entered and such judgment, injunction, order or decree
     shall become final and non-appealable.

     sec. 10.2 Effect of Termination.  In the event of the termination of this
Agreement pursuant to Section 10.1 by Asarco, on the one hand, or Coeur, on the
other hand, written notice thereof shall forthwith be given to the other Party
specifying the provision hereof pursuant to which such termination is made, and
this Agreement shall be terminated and there shall be no liability hereunder on
the part of Asarco or Coeur, except that (i) the provisions of Section 11.1 and
Section 11.3 shall survive any termination of this Agreement. Nothing in this
Section 10.2 shall relieve either Party of liability for any willful breach of
this Agreement.

                                   ARTICLE XI

                                 MISCELLANEOUS

     sec. 11.1 Announcements.  Asarco and Coeur will consult with each other
before any issuance by them of, and will provide each other the opportunity to
review, comment upon and concur with, any press release or other public
statements with respect to the transaction contemplated by this Agreement, and
shall not issue any such press release, or make any such public statement prior
to such consultation, except as is required by applicable law, court process or
by obligations pursuant to any listing agreement with any national securities
exchange.

     sec. 11.2 Cooperation After Closing.  (a) From and after the Closing Date,
Coeur shall cooperate fully with and assist, and shall cause its officers and
employees to cooperate fully with and assist, Asarco and its representatives
(including, without limitation, its counsel and independent auditors), in
connection with:

          (i) the preparation by Asarco, at its sole cost, of its portion of any
     Federal consolidated income Tax Return, report or declaration, and of any
     state consolidated, combined or unitary income Tax Return, report or
     declaration;

          (ii) any Tax audit, examination or proposed or final assessment or the
     like (including without limitation any Tax Claim) relating to NPMC, Silver
     Valley or Empresa; and

          (iii) the preparation of any statement, report, notice, response or
     other document for filing with the Securities and Exchange Commission, any
     state or foreign securities commission or authority, any other

                                      A-22
<PAGE>   71

     Governmental Authority or any securities exchange or market, domestic or
     foreign, including, without limitation, in connection with any comments or
     requests for information, inquiries.

     (b) Following the Closing, Coeur shall not destroy any information, files,
documents or records (written and computer) relating to NPMC, Silver Valley or
Empresa or any of its businesses or operations without giving at least 30 days'
prior written notice to Asarco and shall permit Asarco to examine, duplicate (at
its expense) and/or transfer (at its expense) to its representatives any of such
information, files, documents or records.

     (c) Upon the request of a party hereto at any time after the Closing Date,
the other party will forthwith execute and deliver such further instruments of
assignment, transfer, conveyance, endorsement, direction or authorization and
other documents as the requesting party or its counsel may request in order to
(i) perfect title of Asarco (and its successors and assigns) to the New Coeur
Shares or (ii) perfect the ownership of Coeur of the Asarco Interests acquired
by it pursuant to the terms of this Agreement.

     (d) All business records (including technical data, maps, files, reports,
photos in hard copy; Asarco shall make reasonable efforts to transfer such
records in electronic format) of NPMC, Silver Valley and Empresa shall be
delivered to Coeur on the Closing Date or as soon after Closing as is reasonably
practicable but in no event later than 30 days after the Closing Date. Asarco
may retain copies of any such records for the sole purpose of complying with
this Agreement and any other requirement imposed by applicable law.

     (e) Asarco shall provide Coeur with the use of certain of its corporate
computer systems and shall provide support for the use of such systems (any
out-of-pocket costs shall be for Coeur's account) for a period not to exceed one
year.

     (f) Not later than 60 days after the Closing Date, Coeur shall return to
Asarco or, if so directed by Asarco, destroy any letterhead, envelopes,
brochures, marketing materials, invoices, forms or similar materials bearing the
Asarco name and/or logo, and shall remove Asarco's name from the properties.

     sec. 11.3 Expenses.  Each of the Parties hereto shall pay all of its own
expenses relating to their performance under, and the transactions contemplated
by, this Agreement, including, without limitation, the fees and expenses of
their respective legal, financial, accounting and other advisers; provided,
however, that the Parties shall share equally all filing fees of either Party
incurred pursuant to the HSR Act.

     sec. 11.4 Governing Law.  The interpretation and construction of this
Agreement, and all matters relating hereto, shall be governed by the laws of the
State of Idaho applicable to agreements executed and to be performed solely
within such State.

     sec. 11.5 Jurisdiction.  Any judicial proceeding brought against any of the
parties to this Agreement on any dispute arising out of this Agreement or any
matter related hereto may be brought in the courts of the State of New York, or
in the United States District Court for the Southern District of New York, and,
by execution and delivery of this Agreement, each of the Parties to this
Agreement accepts the non-exclusive jurisdiction of such courts, and irrevocably
agrees to be bound by any judgment rendered thereby in connection with this
Agreement. The prevailing Party in any such litigation shall be entitled to
receive from the losing Party all costs and expenses, including reasonable
counsel fees, incurred by the prevailing Party.

     sec. 11.6 Captions.  The Article and Section captions used herein are for
reference purposes only, and shall not in any way affect the meaning or
interpretation of this Agreement.

     sec. 11.7 Publicity.  Asarco and Coeur agree that the initial press release
relating to this Agreement shall be released by both parties concurrently and
each party shall have consulted with the other to agree on such press release
and thereafter each Party shall, subject to its respective legal obligations
(including requirements of stock exchanges and other similar regulatory bodies),
consult with each other, and use reasonable efforts to agree upon the text of
any press release, before issuing any such press release or otherwise making
public statements with respect to the transaction contemplated hereby and in
making any filings with any federal or state governmental or regulatory agency
or with any national securities exchange with respect thereto.

                                      A-23
<PAGE>   72

     sec. 11.8 Notices.  Any notice or other communication required or permitted
under this Agreement shall be sufficiently given if delivered in person or sent
by facsimile or by registered or certified mail, postage prepaid, addressed as
follows: if to Asarco, to: 180 Maiden Lane, New York, New York, 10038,
Attention: General Counsel; and if to Coeur to: 505 Front Avenue, P.O. Box I,
Coeur d'Alene, Idaho, 83816, Attention: Dennis E. Wheeler, Chairman, President,
and Chief Executive Officer or such other address or number as shall be
furnished in writing by any such Party, and such notice or communication shall
be deemed to have been given as of the date so delivered, sent by facsimile or
mailed.

     sec. 11.9 Parties in Interest.  This Agreement may not be transferred,
assigned, pledged or hypothecated by any Party hereto, other than by operation
of law or with the written consent of the other Party. This Agreement shall be
binding upon and shall inure to the benefit of the Parties hereto and their
respective successors and permitted assigns.

     sec. 11.10 Counterparts.  This Agreement may be executed in counterparts,
which taken together shall constitute one instrument.

     sec. 11.11 Entire Agreement.  This Agreement, including the other documents
referred to herein which form a part hereof, contains the entire understanding
of the Parties hereto with respect to the subject matter contained herein and
therein. This Agreement supersedes all prior agreements and understandings
between the Parties with respect to such subject matter.

     sec. 11.12 Amendments.  This Agreement may not be changed orally, but this
Agreement may be amended and any provision of this Agreement can be waived,
amended, supplemented or modified only by an agreement in writing signed by
Asarco and Coeur.

     sec. 11.13 No Third Party Beneficiaries.  Other than in Section 9.2, each
Party hereto intends that this Agreement shall not benefit or create any right
or cause of action in or on behalf of any Person other than the Parties hereto.

     IN WITNESS WHEREOF, each of Asarco and Coeur has caused this Agreement to
be executed by its officer thereunto duly authorized as of the day and year
first above written.

                                          ASARCO INCORPORATED

                                          By

                                            ------------------------------------
                                          Name: Francis R. McAllister
                                          Title:  Chairman and Chief Executive
                                          Officer

                                          COEUR D'ALENE MINES CORPORATION

                                          By

                                            ------------------------------------
                                          Name: Dennis E. Wheeler
                                          Title:  Chairman and Chief Executive
                                          Officer

                                      A-24
<PAGE>   73

                                                                       EXHIBIT B
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                             SHAREHOLDER AGREEMENT

                                 BY AND BETWEEN
                              ASARCO INCORPORATED
                                      AND
                        COEUR D'ALENE MINES CORPORATION
                            ------------------------

                       DATED AS OF                , 1999

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                       B-1
<PAGE>   74

                             SHAREHOLDER AGREEMENT

     SHAREHOLDER AGREEMENT (this "Agreement") dated [Closing Date] by and
between ASARCO INCORPORATED, a New Jersey corporation ("Asarco"), and COEUR
D'ALENE MINES CORPORATION, an Idaho Corporation ("Coeur").

                                  WITNESSETH:

     WHEREAS, Asarco and Coeur have completed the transactions contemplated by a
Transaction Agreement dated as of May 13, 1999 and amended and restated as of
June 22, 1999 (the "Transaction Agreement") providing for the exchange of
certain assets of Asarco for 7,125,000 shares of newly issued common stock, par
value $1.00 per share (the "Common Stock"), of Coeur pursuant to the terms and
conditions of the Transaction Agreement;

     WHEREAS, the Parties hereto believe that it is desirable for Asarco and
Coeur to make certain agreements with respect to the shares of Common Stock to
be owned by Asarco.

     NOW, THEREFORE, in consideration of the mutual covenants herein contained
and for other good and valuable consideration, the receipt and adequacy of which
is hereby acknowledged, the parties hereto agree as follows:

                                   ARTICLE I

                                  DEFINITIONS

     sec. 1.1 Definitions.  As used in this Agreement, the following capitalized
terms shall have the following meanings (such meanings to be equally applicable
to both the singular and plural forms of the terms defined):

     "Action of Asarco" shall mean any voluntary sale, transfer or other
disposition of beneficial ownership of Common Stock by Asarco and its
Affiliates, either directly or indirectly, to any Person other than Asarco or
its Affiliates; provided, however, the term "Action of Asarco" shall not include
any sale, transfer or other disposition of beneficial ownership pursuant to any
order, decree or directive of any court or other governmental body or by any
public authority or otherwise by operation of law.

     "Affiliate" of any Person shall mean any Person directly or indirectly
controlling, controlled by, or under common control with, such person; provided
that, for the purposes of this definition, "control" (including, with
correlative meanings, the terms "controlled by" and "under common control
with"), as used with respect to any Person, shall mean the possession, directly
or indirectly, of the power to direct or cause the direction of the management
and policies of such Person, whether through the ownership of voting securities
or partnership interests, by contract or otherwise.

     "Agreement" shall have the meaning assigned to such term in the preamble to
this Agreement.

     "Asarco" shall have the meaning assigned to such term in the preamble to
this Agreement.

     "Business Day" shall mean any day, other than a Saturday, Sunday or a day
on which banks located in New York, New York shall be authorized or required by
law to close.

     "Closing Date" shall have the meaning assigned to such term in the
Transaction Agreement.

     "Common Stock" shall have the meaning assigned to such term in the first
recital of this Agreement.

     "Coeur" shall have the meaning assigned to such term in the preamble to
this Agreement.

     "Liens" shall mean liens, security interests, options, rights of first
refusal, easements, mortgages, charges, indentures, deeds of trust, rights of
way, restrictions on the use of real property, encroachments, licenses to third
parties, leases to third parties, security agreements, or any other encumbrances
and other restrictions or limitations on use of real or personal property or
irregularities in title thereto.

                                       B-2
<PAGE>   75

     "1933 Act" shall mean the Securities Act of 1933, as amended, together with
the rules and regulations promulgated thereunder.

     "1934 Act" shall mean the Securities Exchange Act of 1934, as amended,
together with the rules and regulations promulgated thereunder.

     "Parties" shall mean Asarco and Coeur and their respective successors and
permitted assigns.

     "Person" shall mean and include an individual, a partnership, a joint
venture, a corporation, a limited liability company, a limited liability
partnership, a trust, an incorporated organization and a government or any
department or agency thereof.

     "Registrable Stock" shall mean: (i) any of the Common Stock owned by Asarco
or its Affiliates; and (ii) any securities issued or issuable with respect to
such Common Stock referred to in clause (i) above by way of stock dividends or
stock splits or in connection with a combination of shares, recapitalization,
merger, consolidation, or other reorganization or otherwise. As to any
particular Registrable Stock, such securities will cease to be Registrable Stock
when they have been distributed to the public pursuant to an offering registered
under the 1933 Act. The foregoing notwithstanding, a security will not cease to
be Registrable Stock until all stop transfer instructions or notations and
restrictive legends with respect to such security have been lifted or removed.

     "Registration Statement" means any registration statement under the 1933
Act of Coeur that covers any of the Registrable Stock pursuant to the provisions
of this Agreement, including the related prospectus, all amendments and
supplements to such registration statement, including pre- and post-effective
amendments, all exhibits thereto and all material incorporated by reference or
deemed to be incorporated by reference in such registration statement.

     "SEC" shall mean the United States Securities and Exchange Commission.

     "Subsidiary" shall mean any other Person in which a Person owns, directly
or indirectly, 50% or more of the outstanding shares of capital stock or other
equity interests.

     "Transaction Agreement" shall have the meaning assigned to such term in the
first recital of this Agreement.

                                   ARTICLE II

                      NOMINATION AND ELECTION OF DIRECTORS

     sec. 2.1 Nomination of Directors by Asarco.  Asarco shall have the right to
nominate, by written notice to Coeur, two directors for election to Coeur's
board of directors. In the event that Asarco and its Affiliates shall hold less
than 10% of the total outstanding Common Stock due to an Action of Asarco,
Asarco shall have the right to nominate, by written notice to Coeur, one
director for election to Coeur's board of directors. In each case, written
notice of nomination shall be provided by Asarco to Coeur 20 Business Days
following receipt by Asarco of a written request for nomination from Coeur which
request shall be made not later than 30 Business Days prior to the record date
for determining shareholders entitled to vote at any annual or special meeting
at which directors will be elected. Asarco and Coeur agree that Asarco's initial
nominees shall be appointed to Coeur's board of directors on the Closing Date,
which is the date on which this Agreement is executed, and that such nominees
will be the persons specified in a written notice from Asarco to Coeur delivered
on the date the Transaction Agreement was executed. Asarco's rights under this
Section 2.1 and Coeur's obligations under Section 2.2 shall continue for so long
as Asarco and its Affiliates own at least 1% of outstanding Common Stock.

     sec. 2.2 Solicitation of Proxies by Coeur.  Coeur shall take all reasonable
and lawful action to solicit proxies from its shareholders pursuant to proxy
materials for the election of directors of Coeur, including the directors or
director nominated by Asarco, and which recommend that Coeur's shareholders vote
in favor of such slate of directors, including the directors or director
nominated by Asarco.

                                       B-3
<PAGE>   76

     sec. 2.3 Agreement to Vote for Slate of Directors.  Provided that Coeur
shall have complied with Sections 2.1 and 2.2 hereof, Asarco shall vote, and
shall cause each of its Affiliates to vote, all of their respective shares of
Common Stock for the election of the slate of directors recommended by the board
of directors of Coeur at any annual or special meeting called for such purpose.

                                  ARTICLE III

                                   STANDSTILL

     sec. 3.1 Standstill.  Asarco agrees that, for a period of five years from
the Closing Date, unless Asarco first obtains the written consent of Coeur's
board of directors, it shall not, directly or indirectly, acquire Common Stock
or other voting equity securities of Coeur, or any right or option to acquire
Common Stock or other voting equity securities of Coeur if, after such
acquisition, Asarco and its Affiliates, directly or indirectly, would
beneficially own more than 25% of the total combined voting power of all voting
equity securities of Coeur.

                                   ARTICLE IV

                              REGISTRATION RIGHTS

     sec. 4.1 Demand Registration.  At any time and from time to time after the
Closing Date, upon the request of Asarco for a registration of at least
1,000,000 shares of Registrable Stock, Coeur will use all reasonable efforts to
file the necessary Registration Statement under the 1933 Act and cause it to
become effective within 90 days from the date of Asarco's request. Such
Registration Statement shall cover the Common Stock which Coeur has been so
requested to register for disposition in accordance with the intended method or
methods of disposition stated in such request.

     sec. 4.2 Piggyback Registration.  Whenever Coeur proposes to register any
of its equity securities under the 1933 Act (other than for an acquisition of
the type described in Rule 145 under the 1933 Act or for an employee benefit
plan on Form S-8), whether or not for sale for its own account, Coeur will each
time give prompt written confidential notice of such proposed filing to Asarco
at least 20 Business Days before the anticipated filing date. Such notice shall
offer Asarco and its Affiliates the opportunity to register such amount of
Registrable Stock as they shall request (a "Piggyback Registration"). Coeur
shall include in each such Piggyback Registration all Registrable Stock with
respect to which Coeur has received a written request for inclusion therein
within 15 Business Days after such notice has been given by Coeur to Asarco. If
the Registration Statement relating to the Piggyback Registration is to cover an
underwritten offering, such Registrable Stock shall be included in the
underwriting on the same terms and conditions as the securities otherwise being
sold through the underwriters. Asarco and its Affiliates shall be permitted to
withdraw all or part of the Registrable Stock from a Piggyback Registration at
any time prior to the effective time of such Piggyback Registration.

     sec. 4.3 Costs and Expenses.  All costs, expenses and fees, other than the
fees of Asarco's counsel, with respect to a Registration Statement filed by
Coeur pursuant to Section 4.1 hereof shall be borne by Coeur. The costs,
expenses and fees, other than the fees of Asarco's counsel, with respect to any
Registration Statement filed by Coeur pursuant to Section 4.2 hereof shall be
borne by Coeur and by the holders of securities requesting registration of their
securities pro rata in proportion to the offering price of the securities being
sold by each, but allocable expenses shall not include the fees and
disbursements of any independent counsel retained by such holders in connection
therewith. The out-of-pocket expenses borne by such holders shall be allocated
among them in proportion to the offering price of the securities respectively
requested by them to be registered under the 1933 Act, except that such expenses
incurred at the request of particular holders, the benefits of which are not
shared directly by all such holders, shall be borne by such particular holders.
Asarco shall bear its own underwriting discounts and commissions.

                                       B-4
<PAGE>   77

     sec. 4.4 Prospectuses, Qualification and Indemnity.  In the event of the
registration of any Common Stock which Asarco or its Affiliates propose to sell
or otherwise dispose of, Coeur will:

          (a) Furnish to Asarco or its Affiliates such number of copies of a
     prospectus in conformity with the requirements of the 1933 Act and such
     other documents as Asarco or its Affiliates shall reasonably request;

          (b) Use its best efforts to register or qualify, if required, such
     Common Stock under such other securities acts or blue sky laws of such
     jurisdiction as Asarco or its Affiliates shall reasonably request and do
     any and all other acts and things which may be necessary or advisable to
     enable Asarco or its Affiliates to consummate such proposed sale or other
     disposition of such Common Stock in any jurisdiction;

          (c) Keep effective all such registrations and qualifications and do
     any and all such other acts and things for such period as may be necessary
     to permit the public sale or other disposition of such Common Stock by
     Asarco or its Affiliates; and

          (d) Indemnify Asarco, its Affiliates, and their respective directors
     and officers against, and to the extent indemnification is unavailable or
     insufficient, contribute to the payment of, any liability or expense which
     any of them may incur incident to such registration, qualification and
     public sale or other disposition of the Common Stock by reason of any
     untrue statement of a material fact in any prospectus, Registration
     Statement, offering circular or in any related documents or the like, or
     any omission of any material fact required to be stated therein or
     necessary to make the statements therein not misleading, or any
     manipulative or deceptive device or contrivance or fraudulent scheme or
     practice by Coeur, provided that Coeur shall not be liable to Asarco, its
     Affiliates or their respective directors and officers in respect of any
     liability arising out of an untrue statement or omission made in reliance
     upon or in conformity with written information furnished to Coeur by Asarco
     or its Affiliates or by an underwriter specifically for use in connection
     with any such registration or qualification.

     sec. 4.5 Asarco's Information and Indemnification.  At the request of
Coeur, Asarco will furnish to Coeur such information regarding itself and its
holdings of Common Stock as Coeur shall specify in such request and as shall be
required in connection with any action taken pursuant to this Article IV and
Asarco shall indemnify Coeur in respect of any liability arising out of any
untrue statement or omission made in reliance upon or in conformity with such
information.

                                   ARTICLE V

                           CERTAIN CORPORATE ACTIONS

     sec. 5.1 Certain Corporate Actions.  Until Asarco and its Affiliates hold
less than 10% of the total outstanding Common Stock as a result of an Action of
Asarco, the following actions shall not be taken by Coeur without the prior
written consent of Asarco:

          (i) approval of capital expenditure budgets and any single project
     requiring a capital expenditure in excess of $100,000,000;

          (ii) approval of any financial institution, terms and conditions and
     amounts with respect to any standard lines of credit or borrowings to be
     utilized or secured by Coeur exceeding $100,000,000;

          (iii) the creation of any Lien in excess of $100,000,000 on the assets
     of Coeur or any of its Subsidiaries;

          (iv) the discharge of auditors when a material dispute exists in
     connection with the auditing of Coeur's books, records or financial
     statements;

          (v) the liquidation, dissolution or general winding-up of Coeur or any
     material Subsidiary or the filing on behalf of Coeur or any material
     Subsidiary of any voluntary petition seeking relief under the bankruptcy
     laws of the relevant jurisdiction;

                                       B-5
<PAGE>   78

          (vi) any material change in the nature of Coeur's business from its
     current business of precious metals mining and other businesses directly
     related thereto;

          (vii) the issuance by Coeur of any Common Stock or other class of its
     capital stock for consideration other than cash for a value in excess of
     $100,000,000;

          (viii) any material amendment of the By-Laws or Articles of
     Incorporation of Coeur which would conflict with, or in any way be
     inconsistent with, the terms of this Agreement; and

          (ix) any increase in the number of directors of Coeur above eleven.

     Notwithstanding the foregoing, no consent of Asarco shall be required for a
currently-contemplated debt restructuring plan of Coeur provided it consists of
changes in the terms of Coeur's outstanding convertible subordinated debentures
due 2002, 2004, and 2005 including extensions of maturity dates, repurchases,
increases in interest rates (but not to a level higher than current market rates
for comparably-rated debt) and reductions in conversion prices (but not to a
level lower than 10% above the then-current market price of the Coeur Common
Stock), or an exchange of equity securities for debt provided that the implied
value of any Common Stock involved in such an exchange shall not be less than
the then-current market price of the Common Stock.

     sec. 5.2 Deemed Consent.  Asarco shall be deemed to have consented to an
action specified in Section 5.1 if (i) such action shall have been included as a
specific agenda item for a meeting of Coeur's Board of Directors, (ii) such
written agenda together with all relevant information relating to the proposed
action shall have been delivered to Directors at least three Business Days prior
to such meeting and (iii) at such meeting of Coeur's Board of Directors, both of
the Directors nominated by Asarco pursuant to Section 2.1 vote in favor of such
action.

                                   ARTICLE VI

                                 MISCELLANEOUS

     sec. 6.1 Expenses.  Except as otherwise provided in Article IV and in
Section 6.3 each of the Parties hereto shall pay all of its own expenses
relating to its performance under, and the transactions contemplated by, this
Agreement, including, without limitation, the fees and expenses of its
respective legal, financial, accounting and other advisers.

     sec. 6.2 Governing Law.  The interpretation and construction of this
Agreement, and all matters relating hereto, shall be governed by the laws of the
State of New York applicable to agreements executed and to be performed solely
within such State.

     sec. 6.3 Jurisdiction.  Any judicial proceeding brought against either
Party to this Agreement on any dispute arising out of this Agreement or any
matter related hereto may be brought in the courts of the State of New York, or
in the United States District Court for the Southern District of New York, and,
by execution and delivery of this Agreement, each of the Parties to this
Agreement accepts the non-exclusive jurisdiction of such courts, and irrevocably
agrees to be bound by any judgment rendered thereby in connection with this
Agreement. The prevailing Party in any such litigation shall be entitled to
receive from the losing Party all costs and expenses, including reasonable
counsel fees, incurred by the prevailing Party.

     sec. 6.4 Injunctive Relief.  It is acknowledged that it may be impossible
to measure in money the damages that would be suffered if either Party hereto
fails to comply with any of the obligations herein imposed on it and that, in
the event of any such failure, an aggrieved Party hereto may be deemed to have
been irreparably damaged and may not have an adequate remedy at law. Any such
Party shall, therefore, be entitled to injunctive relief, including specific
performance, to enforce such obligations.

     sec. 6.5 Captions.  The Article and Section captions used herein are for
reference purposes only, and shall not in any way affect the meaning or
interpretation of this Agreement.

                                       B-6
<PAGE>   79

     sec. 6.6 Publicity.  Asarco and Coeur agree that each Party shall, subject
to its respective legal obligations (including requirements of stock exchanges
and other similar regulatory bodies), consult with the other, and use reasonable
efforts to agree upon the text of any press release, before issuing any such
press release or otherwise making public statements with respect to the
transactions contemplated hereby and in making any filings with any federal or
state governmental or regulatory agency or with any national securities exchange
with respect thereto.

     sec. 6.7 Notices.  Any notice or other communication required or permitted
under this Agreement shall be sufficiently given if delivered in person or sent
by facsimile or by registered or certified mail, postage prepaid, addressed as
follows: if to Asarco, to 180 Maiden Lane, New York, New York 10038, Attention:
General Counsel; and if to Coeur, to 505 Front Avenue, P.O. Box I, Coeur
d'Alene, Idaho 83816-0316, Attention: Dennis E. Wheeler or such other address or
number as shall be furnished in writing by any such Party, and such notice or
communication shall be deemed to have been given as of the date so delivered,
sent by facsimile or mailed.

     sec. 6.8 Parties in Interest.  This Agreement may not be transferred,
assigned, pledged or hypothecated by any Party hereto, other than by operation
of law or with the written consent of the other Party. This Agreement shall be
binding upon and shall inure to the benefit of the Parties hereto, their
Affiliates and their respective successors and permitted assigns.

     sec. 6.9 Counterparts.  This Agreement may be executed in counterparts,
which taken together shall constitute one instrument.

     sec. 6.10 Entire Agreement.  This Agreement, including the other documents
referred to herein which form a part hereof, contains the entire understanding
of the Parties hereto with respect to the subject matter contained herein and
therein. This Agreement supersedes all prior agreements and understandings
between the Parties with respect to such subject matter.

     sec. 6.11 Amendments.  This Agreement may not be changed orally, but this
Agreement may be terminated and any provision of this Agreement can be waived,
amended, supplemented or modified only by an agreement in writing signed by
Asarco and Coeur.

     sec. 6.12 Severability.  In case any provision in this Agreement shall be
held invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions hereof will not in any way be
affected or impaired thereby.

     sec. 6.13 Third Party Beneficiaries.  Each Party hereto intends that this
Agreement shall not benefit or create any right or cause of action in or on
behalf of any Person other than the Parties hereto.

                                       B-7
<PAGE>   80

     IN WITNESS WHEREOF, each of Asarco and Coeur has caused this Agreement to
be executed by its officer thereunto duly authorized as of the day and year
first above written.

                                          ASARCO INCORPORATED

                                          By:

                                            ------------------------------------
                                            Name: Francis R. McAllister
                                            Title: Chairman and Chief Executive
                                              Officer

                                          COEUR D'ALENE MINES CORPORATION

                                          By:

                                            ------------------------------------
                                            Name: Dennis E. Wheeler
                                            Title: Chairman and Chief Executive
                                              Officer

                                       B-8
<PAGE>   81

                                                                       EXHIBIT C

May 17, 1999

Board of Directors
Coeur d'Alene Mines Corporation
505 Front Avenue, P.O. Box "I"
Coeur d'Alene, Idaho 83816

Members of the Board of Directors:

     We understand that Coeur d'Alene Mines Corporation ("Coeur" or the
"Company") and Asarco Incorporated ("Asarco") have executed a Transaction
Agreement dated as of May 13, 1999 (the "Transaction Agreement"), pursuant to
which Asarco will exchange the Silver Assets (as defined below) for 7.125
million shares of Coeur common stock (the "Consideration").

     The Silver Assets consist of Asarco's (i) 50% interest in Silver Valley
Resources Corporation, (ii) 1,500,000 common shares of Pan American Silver Corp.
("Pan American") and warrants to purchase 500,000 Pan American common shares,
(iii) 100% interest in Empresa Minera Manquiri S.R.L, and (iv) 100% interest in
NPMC Inc., the primary holding of which is a royalty from Pan American.

     You have asked for our opinion as to the fairness, from a financial point
of view, of the Consideration to the Company.

     For purposes of the opinion set forth herein, we have:

          1. reviewed the Transaction Agreement;

          2. analyzed certain publicly available financial statements and other
     information of Coeur;

          3. reviewed and analyzed certain financial information of Coeur and
     the Silver Assets (including projections, forecasts, and reserve and
     resource information) provided by the Company (together, the
     "Projections");

          4. discussed with senior management of the Company the current
     operations, financial condition and prospects of Coeur and the Silver
     Assets;

          5. reviewed the pro forma contribution of Coeur and the Silver Assets,
     respectively, with regard to adjusted market capitalization, recoverable
     reserves and resources, projected production, and mine cash flow;

          6. reviewed certain publicly available information with respect to
     certain publicly traded companies;

          7. based on the Projections, performed a discounted cash flow analysis
     of the Silver Assets;

          8. reviewed the pro forma financial and operating impact of the
     transaction on Coeur;

          9. reviewed the reported stock prices and trading activity for the
     Common Stock of Coeur; and

          10. performed such other financial analyses and examinations and
     considered such other factors as we have deemed appropriate.

     We have assumed and relied upon, without independent verification, the
accuracy and completeness of the information reviewed by us for the purpose of
rendering this opinion. With respect to the Projections supplied by the Company,
we have further assumed that such Projections represent the best currently
available estimates and judgment of the management of the Company as to the
expected future financial performance of the Silver Assets and Coeur. We have
specifically relied upon, among other things, Coeur management's view that the
San Bartolome ore body is amenable to cyanidation through heap leaching, and
that approximately 70% of the estimated total resources at San Bartolome will be
converted to proven & probable reserves within twelve to eighteen months of
closing. We have not made any independent verification of information supplied
by or confirmed by Coeur to us and have not undertaken any independent valuation
or appraisal of the assets or liabilities of the Silver Assets or Coeur, nor
have we been furnished with such

                                       C-1
<PAGE>   82

appraisals. Our opinion is necessarily based on economic, market, financial and
other conditions as in effect on, and the information made available to us as
of, the date hereof. It should be understood that, although subsequent
developments may affect this opinion, we do not have any obligation to update,
revise or reaffirm this opinion.

     Deutsche Bank Securities Inc. has acted as financial advisor to the Company
in connection with this transaction and will receive a fee for services
rendered.

     It is understood that this letter is for the information of the Board of
Directors of Coeur and may not be used for any other purpose without our prior
written consent, except that this opinion may be included in its entirety in any
proxy statement to be distributed to the holders of Coeur common stock in
connection with this transaction.

     Based on the foregoing, we are of the opinion that, as of the date hereof,
the Consideration is fair, from a financial point of view, to the Company.

                                          Very truly yours,

                                          Deutsche Bank Securities Inc.

                                       C-2
<PAGE>   83

                                                                       EXHIBIT D

                       EXISTING ARTICLES OF INCORPORATION
                   (AS RESTATED WITHOUT ANY CHANGES THERETO)
                                       OF

                        COEUR D'ALENE MINES CORPORATION
                            ------------------------

                                   ARTICLE I

     That the name of said corporation shall be "COEUR D'ALENE MINES
CORPORATION."

                                   ARTICLE II

     The purposes for which this corporation is formed are to transact any or
all lawful business for which corporations may be incorporated under the Idaho
Business Corporation Act.

                                  ARTICLE III

     The registered office and principal place of business of this corporation
shall be in the City of Wallace, Shoshone County, State of Idaho.

                                   ARTICLE IV

     The term of this corporation shall be perpetual.

                                   ARTICLE V

     That the number of directors of said corporation shall be no less than five
nor more than nine, in the discretion of the directors.

                                   ARTICLE VI

     (a) The corporation is authorized to issue two classes of shares of capital
stock to be designated, respectively, "common stock" and "preferred stock". The
total number of such shares which the corporation shall have the authority to
issue shall be 70 million. The total number of shares of common stock authorized
to be issued shall be 60 million shares, $1.00 par value per share, and the
total number of shares of preferred stock authorized to be issued shall be 10
million, $1.00 par value per share.

     (b) The shares of preferred stock may be issued from time to time in one or
more series. The Board of Directors is hereby authorized to establish from time
to time by resolution of resolutions the number of shares to be included in each
such series, and to fix the designation, powers, preferences and relative
participating, optional, conversion and other special rights of the shares of
each such series and the qualifications, limitations or restrictions thereof,
including but not limited to the fixing or alteration of the dividend rights,
dividend rate or rates, conversion rights, voting rights, rights and terms of
redemption (including sinking fund provisions), the redemption price or prices,
and the liquidation preferences of any wholly unissued series of shares of
preferred stock, or any or all of them, all to the fullest extent now or
hereafter permitted by the Idaho Business Corporation Act; and to increase or
decrease the authorized number of shares of any series subsequent to the issue
of shares of that series. In case the number of shares of any series shall be so
decreased, the shares constituting such decrease shall resume the status which
they had prior to the adoption of the resolution originally fixing the number of
shares of such series. No vote of the holders of the common stock or preferred
stock shall, unless otherwise provided in the resolutions adopted by the Board
of Directors creating any

                                       D-1
<PAGE>   84

particular series of preferred stock, be a prerequisite to the issuance of any
shares of any series of the preferred stock authorized by and complying with the
conditions of this Article.

     (c) Holders of the corporation's common stock shall have no preemptive
rights to acquire unissued or treasury shares or securities convertible into
such shares of the corporation's capital stock or carrying a right to subscribe
to or acquire shares. Holders of the corporation's preferred stock shall have no
preemptive rights to acquire unissued or treasury shares of the corporation's
capital stock or carrying a right to subscribe to acquire shares, except to the
extent provided under the resolution or resolutions adopted by the Board of
Directors, creating any particular series of such preferred stock.

                                  ARTICLE VII

     That the amount of the capital stock of said corporation which has actually
been subscribed is Three million (3,000,000) shares, and the following are the
names of the subscribers, with the number and par value of the shares subscribed
for by each:

<TABLE>
<CAPTION>
NAME                                                    NUMBER OF SHARES      PAR VALUE
- ----                                                    ----------------    -------------
<S>                                                     <C>                 <C>
Joseph R. Gumm........................................     2,999,992        $2,999,992.00
George Turner.........................................             4                 4.00
R.W. Nuzum............................................             4                 4.00
                                                           ---------        -------------
                                                           3,000,000        $3,000,000.00
</TABLE>

                                  ARTICLE VIII

     The Board of Directors shall have the right to repeal and amend the By-Laws
and to adopt new By-Laws of the corporation pursuant to the provisions of 30-132
Idaho Code".

                                   ARTICLE IX

     Section 1. Vote Required for Certain Business Combinations

     A. Higher Vote for Certain Business Combinations.  In addition to any
affirmative vote required by law or these Articles of Incorporation, and except
as otherwise expressly provided in Section 2 of this Article IX:

          (i) any merger or consolidation of the Company or any Subsidiary (as
     hereinafter defined) with (a) any Interested Shareholder (as hereinafter
     defined) or (b) any other corporation or other person (whether or not
     itself an Interested Shareholder) which is, or after such merger or
     consolidation would be, an Affiliate (as hereinafter defined) of an
     Interested Shareholder; or

          (ii) any sale, lease, exchange, mortgage, pledge, transfer or other
     disposition (in one transaction or a series of transactions) to or with any
     Interested Shareholder or any Affiliate of any Interested Shareholder of
     any assets of the Company or any Subsidiary (in one transaction or a series
     of transactions) of any securities of the Company or any Subsidiary to any
     Interested Shareholder or any Affiliate of any Interested Shareholder in
     exchange for cash, securities or other property (or a combination thereof)
     having an aggregate Fair Market Value of $20 million or more; or

          (iii) the issuance or transfer by the Company or any Subsidiary (in
     one transaction or a series of transactions) of any securities of the
     Company or any Subsidiary to any Interested Shareholder or any Affiliate of
     any Interested Shareholder in exchange for cash, securities or other
     property (or a combination thereof) having an aggregate Fair Market Value
     of $20 million or more; or

          (iv) the adoption of any plan or proposal for the liquidation or
     dissolution of the Company proposed by or on behalf of an Interested
     Shareholder or any Affiliate of any Interested Shareholder; or

          (v) any reclassification of securities (including any reverse stock
     split), or recapitalization of the Company, or any merger or consolidation
     of the Company with any of its Subsidiaries or any other

                                       D-2
<PAGE>   85

     transaction (whether or not with or into or otherwise involving an
     Interested Shareholder) which has the effect, directly or indirectly, of
     increasing the proportionate share of the outstanding shares of any class
     of equity or convertible securities of the Company or any Subsidiary which
     is directly or indirectly owned by any Interested Shareholder or any
     Affiliate of any Interested Shareholder;

shall require the affirmative vote of the holders of at least 80% of the shares
of Common Stock of the Company entitled to vote generally in the election of
directors (the "Common Stock"). Such affirmative vote shall be required
notwithstanding the fact that no vote may be required, or that a lesser
percentage may be specified, by law or in any agreement.

     B. Definition of "Business Combination".  The term "Business Combination"
as used in this Article IX shall mean any transaction which is referred to in
any one or more of clauses (i) through (v) of paragraph A of this Section 1.

     Section 2. When Higher Vote is Not Required.  The provisions of Section 1
of this Article IX shall not be applicable to any particular Business
Combination, and such Business Combination shall require only such affirmative
vote as is required by law and any other provision of these Articles of
Incorporation, if all of the conditions specified in either of the following
paragraphs A and B are met:

          A. Approval by Continuing Directors.  The Business Corporation shall
     have been approved by a majority of the Continuing Directors (as
     hereinafter defined).

          B. Price and Procedure Requirements.  All of the following conditions
     shall have been met:

             (i) The aggregate amount of the cash and the Fair Market Value (as
        hereinafter defined) as of the date of the consummation of the Business
        Combination of consideration other than cash to be received per share by
        holders of Common Stock in such Business Combination shall be at least
        equal to the higher of the following:

                (a) (if applicable) the highest per share price (including any
           brokerage commissions, transfer taxes and soliciting dealers' fees)
           paid by the Interested Shareholder for any shares of Common Stock
           acquired by it (1) within the two-year period immediately prior to
           the first public announcement of the proposal of the Business
           Combination (the "Announcement Date") or (2) in the transaction in
           which it became an Interested Shareholder, whichever is higher; and

                (b) the Fair Market Value per share of Common Stock on the
           Announcement Date or on the date on which the Interested Shareholder
           became an Interested Shareholder (such latter date is referred to in
           this Article IX as the "Determination Date"), whichever is higher.

             (ii) The consideration to be received by holders of the Common
        Stock shall be in cash or in the same form as the Interested Shareholder
        has previously paid for shares of such Common Stock. If the Interested
        Shareholder has paid for shares of Common Stock with varying forms of
        consideration, the form of consideration for such Common Stock shall be
        either cash or the form used to acquire the largest number of shares of
        such Common Stock previously acquired by it.

             (iii) After such Interested Shareholder has become an Interested
        Shareholder, such Interested Shareholder shall not have received the
        benefit, directly or indirectly (except proportionately as a
        shareholder), of any loans, advances, guarantees, pledges or other
        financial assistance or any tax credits or other tax advantages provided
        by the Company, whether in anticipation of or in connection with such
        Business Combination or otherwise.

             (iv) A proxy or information statement describing the proposed
        Business Combination and complying with the requirements of the
        Securities Exchange Act of 1934 and the rules and regulations thereunder
        (or any subsequent provisions replacing such Act, rules or regulations)
        shall be mailed to public shareholders of the Company at least 30 days
        prior to the consummation of such Business Combination (whether or not
        such proxy or information statement is required to be mailed pursuant to
        such Act or subsequent provisions).

                                       D-3
<PAGE>   86

     Section 3. Certain Definitions.  For the purposes of this Article IX:

          A. A "person" shall mean any individual, firm, corporation or other
     entity.

          B. "Interested Shareholder" shall mean any person (other than the
     Company or any Subsidiary of the Company) which:

             (i) is the beneficial owner, directly or indirectly, of more than
        10% of the outstanding shares of the Company's Common Stock; or

             (ii) is an Affiliate of the Company and at any time within the
        two-year period immediately prior to the date in question was the
        beneficial owner, directly or indirectly, of 10% or more of the then
        outstanding Common Stock; or

             (iii) is an assignee of or has otherwise succeeded to any shares of
        Common Stock which were at any time within the two-year period
        immediately prior to the date in question beneficially owned by any
        Interested Shareholder, if such assignment or succession shall have
        occurred in the course of a transaction or series of transactions not
        involving a public offering within the meaning of the Securities Act of
        1933;

     provided, however, that a person shall not be an Interested Shareholder if
     such person became the beneficial owner of more than 10% of the Company's
     Common Stock prior to April 3, 1985.

          C. A person shall be a "beneficial owner" of any Common Stock:

             (i) which such person or any of its Affiliates or Associates (as
        hereinafter defined) beneficially owns, directly or indirectly; or

             (ii) which such person or any of its Affiliates or Associates has
        (a) the right to acquire (whether such right is exercisable immediately
        or only after the passage of time), pursuant to any agreement,
        arrangement or understanding or upon the exercise of conversion rights,
        exchange rights, warrants or options, or otherwise, or (b) the right to
        vote pursuant to any agreement, arrangement or understanding; or

             (iii) which are beneficially owned, directly or indirectly, by any
        other person with which such person or any of its Affiliates or
        Associates has any agreement, arrangement or understanding or the
        purpose of acquiring, holding, voting or disposing of any shares of
        Common Stock.

          D. For the purpose of determining whether a person is an Interested
     Shareholder pursuant to paragraph B of this Section 3, the number of shares
     of Common Stock deemed to be outstanding shall include shares deemed owned
     through application of paragraph C of this Section 3 but shall not include
     any other shares of Common Stock which may be issuable pursuant to any
     agreement, arrangement or understanding, or upon exercise of conversion
     rights, warrants or options, or otherwise.

          E. "Affiliate" or "Associate" shall have the respective meanings
     ascribed to such terms in Rule 12b-2 of the General Rules and Regulations
     under the Securities Exchange Act of 1934, as in effect on April 3, 1985.

          F. "Subsidiary" means any corporation of which a majority of any class
     of equity security is owned, directly or indirectly, by the Company,
     provided, however, that for the purposes of the definition of Interested
     Shareholder, set forth in paragraph B of this Section 3, the term
     "Subsidiary" shall mean only a corporation of which a majority of each
     class of equity security is owned, directly or indirectly, by the Company.

          G. "Continuing Director" means any member of the Board of Directors of
     the Company (the "Board") who is unaffiliated with the Interested
     Shareholder and was a member of the Board prior to the time that the
     Interested Shareholder became an Interested Shareholder, and any successor
     of a Continuing Director who is unaffiliated with the Interested
     Shareholder and is recommended to succeed a Continuing Director by the
     majority of Continuing Directors than on the Board.

                                       D-4
<PAGE>   87

          H. "Fair Market Value" means: (i) in the case of stock, the highest
     closing sale price during the 30-day period immediately preceding the date
     in question of a share of such stock on the Composite Tape for New York
     Stock Exchange Listed Stocks, or, if such stock is not quoted on the
     Composite Tape, on the New York Stock Exchange, or, if such stock is not
     listed on such Exchange, on the principal United States securities exchange
     registered under the Securities Exchange Act of 1934 on which such stock is
     listed, or, if such stock is not listed on any such exchange, the highest
     closing bid quotation with respect to a share of such stock during the
     30-day period preceding the date in question on the National Association of
     Securities Dealers, Inc. Automated Quotations System or any system then in
     use, or if no such quotations are available, the fair market value on the
     date in question of a share of such stock as determined by the Board in
     good faith; and (ii) in the case of property other than cash or stock, the
     fair market value of such property on the date in question as determined by
     the Board in good faith.

          I. In the event of any Business Combination in which the Company
     survives, the phrase "other consideration to be received" as used in
     paragraph B(i) of Section 2 of this Article IX shall include the shares of
     Common Stock retained by the holders of such shares.

     Section 4. Powers of the Board of Directors.  A majority of the directors
of the Company shall have the power and duty to determine for the purposes of
this Article IX, on the basis of information known to it after reasonable
inquiry, (A) whether a person is an Interested Shareholder, (B) the number of
shares of Common Stock beneficially owned by any person, (C) whether a person is
an Affiliate or Associate of another and (D) whether the assets which are the
subject of any Business Combination have, or the consideration to be received
for the issuance or transfer of securities by the Company or any Subsidiary in
any Business Combination has, an aggregate Fair Market Value of $20 million or
more. Any such determination made in good faith shall be binding and conclusive
on all parties.

     Section 5. No Effect on Fiduciary Obligations of Interested
Shareholders.  Nothing contained in this Article IX shall be construed to
relieve any Interested Shareholder from any fiduciary obligation imposed by law.

     Section 6. Amendment, Repeal, etc.  Notwithstanding any other provision of
or the By-Laws of the Company (and notwithstanding the fact that a lesser
percentage may be specified by law, these Articles of Incorporation or the
By-Laws of the Company), the affirmative vote of the holders of 80% or more of
the outstanding shares of the Company's Common Stock shall be required to amend
or repeal, or adopt any provisions inconsistent with this Article IX.

                                   ARTICLE X

     The personal liability of a director of the corporation to the corporation
or its stockholders for monetary damages for breach of fiduciary duty as a
director shall be eliminated, provided, however, that the liability of a
director shall not be eliminated for (i) any breach of the director's duty of
loyalty to the corporation or its stockholders, (ii) acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of
law, (iii) acts with respect to which Section 30-1-48 of the Idaho Code provides
for director liability, or (iv) any transaction from which the director derived
an improper personal benefit. This provision shall not eliminate the liability
of a director for any act or omission occurring prior to the date when this
provision becomes effective.

                                   ARTICLE XI

     The Board of Directors of the corporation shall have the right and power to
direct the corporation to effect repurchases of shares of its capital stock and
to effect distributions to stockholders of the corporation to the extent of the
capital surplus, as well as earned surplus, of the corporation.

                                       D-5
<PAGE>   88

                                                                       EXHIBIT E

                 RESTATED AND AMENDED ARTICLES OF INCORPORATION

                                       OF

                        COEUR D'ALENE MINES CORPORATION

                           [CHANGES ARE UNDERLINED.]
                            ------------------------

     PURSUANT TO THE PROVISIONS OF SECTION 30-1-1007 OF THE IDAHO BUSINESS
CORPORATION ACT, THE UNDERSIGNED CORPORATION, PURSUANT TO RESOLUTIONS DULY
ADOPTED BY ITS BOARD OF DIRECTORS AND SHAREHOLDERS, HEREBY ADOPTS THE FOLLOWING
RESTATED AND AMENDED ARTICLES OF INCORPORATION:

                                   ARTICLE I

     That the name of said corporation shall be "COEUR D'ALENE MINES
CORPORATION."

                                   ARTICLE II

     (a) The corporation is authorized to issue two classes of shares of capital
stock to be designated, respectively, "common stock" and "preferred stock". The
total number of such shares which the corporation shall have the authority to
issue shall be 145 million. The total number of shares of common stock
authorized to be issued shall be 125 million shares, $1.00 par value per share,
and the total number of shares of preferred stock authorized to be issued shall
be 20 million, $1.00 par value per share.

     (b) The shares of preferred stock may be issued from time to time in one or
more series. The Board of Directors is hereby authorized to establish from time
to time by resolution of resolutions the number of shares to be included in each
such series, and to fix the designation, powers, preferences and relative
participating, optional, conversion and other special rights of the shares of
each such series and the qualifications, limitations or restrictions thereof,
including but not limited to the fixing or alteration of the dividend rights,
dividend rate or rates, conversion rights, voting rights, rights and terms of
redemption (including sinking fund provisions), the redemption price or prices,
and the liquidation preferences of any wholly unissued series of shares of
preferred stock, or any or all of them, all to the fullest extent now or
hereafter permitted by the Idaho Business Corporation Act; and to increase or
decrease the authorized number of shares of any series subsequent to the issue
of shares of that series. In case the number of shares of any series shall be so
decreased, the shares constituting such decrease shall resume the status which
they had prior to the adoption of the resolution originally fixing the number of
shares of such series. No vote of the holders of the common stock or preferred
stock shall, unless otherwise provided in the resolutions adopted by the Board
of Directors creating any particular series of preferred stock, be a
prerequisite to the issuance of any shares of any series of the preferred stock
authorized by and complying with the conditions of this Article.

     (c) Holders of the corporation's common stock shall have no preemptive
rights to acquire unissued or treasury shares or securities convertible into
such shares of the corporation's capital stock or carrying a right to subscribe
to or acquire shares. Holders of the corporation's preferred stock shall have no
preemptive rights to acquire unissued or treasury shares of the corporation's
capital stock or carrying a right to subscribe to acquire shares, except to the
extent provided under the resolution or resolutions adopted by the Board of
Directors, creating any particular series of such preferred stock.

                                  ARTICLE III

     The street address of the corporation's registered office is 505 Front
Avenue, Coeur d'Alene, Idaho 83814 and the name of its registered agent at that
address is Dennis E. Wheeler.

                                       E-1
<PAGE>   89

                                   ARTICLE IV

     The name and address of each incorporator is Joseph R. Gunn of Spokane,
Washington, George Turner of Spokane, Washington, R.W. Nuzum of Spokane,
Washington and Fred T. Fudge of Kellogg, Idaho.

                                   ARTICLE V

     Section 1. Vote Required for Certain Business Combinations

     A. Higher Vote for Certain Business Combinations.  In addition to any
affirmative vote required by law or these Articles of Incorporation, and except
as otherwise expressly provided in Section 2 of this Article V:

          (i) any merger or consolidation of the Company or any Subsidiary (as
     hereinafter defined) with (a) any Interested Shareholder (as hereinafter
     defined) or (b) any other corporation or other person (whether or not
     itself an Interested Shareholder) which is, or after such merger or
     consolidation would be, an Affiliate (as hereinafter defined) of an
     Interested Shareholder; or

          (ii) any sale, lease, exchange, mortgage, pledge, transfer or other
     disposition (in one transaction or a series of transactions) to or with any
     Interested Shareholder or any Affiliate of any Interested Shareholder of
     any assets of the Company or any Subsidiary (in one transaction or a series
     of transactions) of any securities of the Company or any Subsidiary to any
     Interested Shareholder or any Affiliate of any Interested Shareholder in
     exchange for cash, securities or other property (or a combination thereof)
     having an aggregate Fair Market Value of $20 million or more; or

          (iii) the issuance or transfer by the Company or any Subsidiary (in
     one transaction or a series of transactions) of any securities of the
     Company or any Subsidiary to any Interested Shareholder or any Affiliate of
     any Interested Shareholder in exchange for cash, securities or other
     property (or a combination thereof) having an aggregate Fair Market Value
     of $20 million or more; or

          (iv) the adoption of any plan or proposal for the liquidation or
     dissolution of the Company proposed by or on behalf of an Interested
     Shareholder or any Affiliate of any Interested Shareholder; or

          (v) any reclassification of securities (including any reverse stock
     split), or recapitalization of the Company, or any merger or consolidation
     of the Company with any of its Subsidiaries or any other transaction
     (whether or not with or into or otherwise involving an Interested
     Shareholder) which has the effect, directly or indirectly, of increasing
     the proportionate share of the outstanding shares of any class of equity or
     convertible securities of the Company or any Subsidiary which is directly
     or indirectly owned by any Interested Shareholder or any Affiliate of any
     Interested Shareholder;

shall require the affirmative vote of the holders of at least 80% of the shares
of Common Stock of the Company entitled to vote generally in the election of
directors (the "Common Stock"). Such affirmative vote shall be required
notwithstanding the fact that no vote may be required, or that a lesser
percentage may be specified, by law or in any agreement.

     B. Definition of "Business Combination".  The term "Business Combination"
as used in this Article V shall mean any transaction which is referred to in any
one or more of clauses (i) through (v) of paragraph A of this Section 1.

     Section 2. When Higher Vote is Not Required.  The provisions of Section 1
of this Article V shall not be applicable to any particular Business
Combination, and such Business Combination shall require only such affirmative
vote as is required by law and any other provision of these Articles of
Incorporation, if all of the conditions specified in either of the following
paragraphs A and B are met:

     A. Approval by Continuing Directors.  The Business Corporation shall have
been approved by a majority of the Continuing Directors (as hereinafter
defined).

                                       E-2
<PAGE>   90

     B. Price and Procedure Requirements.  All of the following conditions shall
have been met:

          (i) The aggregate amount of the cash and the Fair Market Value (as
     hereinafter defined) as of the date of the consummation of the Business
     Combination of consideration other than cash to be received per share by
     holders of Common Stock in such Business Combination shall be at least
     equal to the higher of the following:

             (a) (if applicable) the highest per share price (including any
        brokerage commissions, transfer taxes and soliciting dealers' fees) paid
        by the Interested Shareholder for any shares of Common Stock acquired by
        it (1) within the two-year period immediately prior to the first public
        announcement of the proposal of the Business Combination (the
        "Announcement Date") or (2) in the transaction in which it became an
        Interested Shareholder, whichever is higher; and

             (b) the Fair Market Value per share of Common Stock on the
        Announcement Date or on the date on which the Interested Shareholder
        became an Interested Shareholder (such latter date is referred to in
        this Article V as the "Determination Date"), whichever is higher.

          (ii) The consideration to be received by holders of the Common Stock
     shall be in cash or in the same form as the Interested Shareholder has
     previously paid for shares of such Common Stock. If the Interested
     Shareholder has paid for shares of Common Stock with varying forms of
     consideration, the form of consideration for such Common Stock shall be
     either cash or the form used to acquire the largest number of shares of
     such Common Stock previously acquired by it.

          (iii) After such Interested Shareholder has become an Interested
     Shareholder, such Interested Shareholder shall not have received the
     benefit, directly or indirectly (except proportionately as a shareholder),
     of any loans, advances, guarantees, pledges or other financial assistance
     or any tax credits or other tax advantages provided by the Company, whether
     in anticipation of or in connection with such Business Combination or
     otherwise.

          (iv) A proxy or information statement describing the proposed Business
     Combination and complying with the requirements of the Securities Exchange
     Act of 1934 and the rules and regulations thereunder (or any subsequent
     provisions replacing such Act, rules or regulations) shall be mailed to
     public shareholders of the Company at least 30 days prior to the
     consummation of such Business Combination (whether or not such proxy or
     information statement is required to be mailed pursuant to such Act or
     subsequent provisions).

     Section 3. Certain Definitions.  For the purposes of this Article V:

     A.  A "person" shall mean any individual, firm, corporation or other
entity.

     B.  "Interested Shareholder" shall mean any person (other than the Company
or any Subsidiary of the Company) which:

          (i) is the beneficial owner, directly or indirectly, of more than 10%
     of the outstanding shares of the Company's Common Stock; or

          (ii) is an Affiliate of the Company and at any time within the
     two-year period immediately prior to the date in question was the
     beneficial owner, directly or indirectly, of 10% or more of the then
     outstanding Common Stock; or

          (iii) is an assignee of or has otherwise succeeded to any shares of
     Common Stock which were at any time within the two-year period immediately
     prior to the date in question beneficially owned by any Interested
     Shareholder, if such assignment or succession shall have occurred in the
     course of a transaction or series of transactions not involving a public
     offering within the meaning of the Securities Act of 1933;

     provided, however, that a person shall not be an Interested Shareholder if
     such person became the beneficial owner of more than 10% of the Company's
     Common Stock prior to April 3, 1985.

                                       E-3
<PAGE>   91

     C.  A person shall be a "beneficial owner" of any Common Stock:

          (i) which such person or any of its Affiliates or Associates (as
     hereinafter defined) beneficially owns, directly or indirectly; or

          (ii) which such person or any of its Affiliates or Associates has (a)
     the right to acquire (whether such right is exercisable immediately or only
     after the passage of time), pursuant to any agreement, arrangement or
     understanding or upon the exercise of conversion rights, exchange rights,
     warrants or options, or otherwise, or (b) the right to vote pursuant to any
     agreement, arrangement or understanding; or

          (iii) which are beneficially owned, directly or indirectly, by any
     other person with which such person or any of its Affiliates or Associates
     has any agreement, arrangement or understanding or the purpose of
     acquiring, holding, voting or disposing of any shares of Common Stock.

     D.  For the purpose of determining whether a person is an Interested
Shareholder pursuant to paragraph B of this Section 3, the number of shares of
Common Stock deemed to be outstanding shall include shares deemed owned through
application of paragraph C of this Section 3 but shall not include any other
shares of Common Stock which may be issuable pursuant to any agreement,
arrangement or understanding, or upon exercise of conversion rights, warrants or
options, or otherwise.

     E.  "Affiliate" or "Associate" shall have the respective meanings ascribed
to such terms in Rule 12b-2 of the General Rules and Regulations under the
Securities Exchange Act of 1934, as in effect on April 3, 1985.

     F.  "Subsidiary" means any corporation of which a majority of any class of
equity security is owned, directly or indirectly, by the Company, provided,
however, that for the purposes of the definition of Interested Shareholder, set
forth in paragraph B of this Section 3, the term "Subsidiary" shall mean only a
corporation of which a majority of each class of equity security is owned,
directly or indirectly, by the Company.

     G.  "Continuing Director" means any member of the Board of Directors of the
Company (the "Board") who is unaffiliated with the Interested Shareholder and
was a member of the Board prior to the time that the Interested Shareholder
became an Interested Shareholder, and any successor of a Continuing Director who
is unaffiliated with the Interested Shareholder and is recommended to succeed a
Continuing Director by the majority of Continuing Directors than on the Board.

     H.  "Fair Market Value" means: (i) in the case of stock, the highest
closing sale price during the 30-day period immediately preceding the date in
question of a share of such stock on the Composite Tape for New York Stock
Exchange Listed Stocks, or, if such stock is not quoted on the Composite Tape,
on the New York Stock Exchange, or, if such stock is not listed on such
Exchange, on the principal United States securities exchange registered under
the Securities Exchange Act of 1934 on which such stock is listed, or, if such
stock is not listed on any such exchange, the highest closing bid quotation with
respect to a share of such stock during the 30-day period preceding the date in
question on the National Association of Securities Dealers, Inc. Automated
Quotations System or any system then in use, or if no such quotations are
available, the fair market value on the date in question of a share of such
stock as determined by the Board in good faith; and (ii) in the case of property
other than cash or stock, the fair market value of such property on the date in
question as determined by the Board in good faith.

     I.  In the event of any Business Combination in which the Company survives,
the phrase "other consideration to be received" as used in paragraph B(i) of
Section 2 of this Article V shall include the shares of Common Stock retained by
the holders of such shares.

     Section 4. Powers of the Board of Directors.  A majority of the directors
of the Company shall have the power and duty to determine for the purposes of
this Article V, on the basis of information known to it after reasonable
inquiry, (A) whether a person is an Interested Shareholder, (B) the number of
shares of Common Stock beneficially owned by any person, (C) whether a person is
an Affiliate or Associate of another and (D) whether the assets which are the
subject of any Business Combination have, or the consideration to be received
for the issuance or transfer of securities by the Company or any Subsidiary in
any Business

                                       E-4
<PAGE>   92

Combination has, an aggregate Fair Market Value of $20 million or more. Any such
determination made in good faith shall be binding and conclusive on all parties.

     Section 5. No Effect on Fiduciary Obligations of Interested
Shareholders.  Nothing contained in this Article V shall be construed to relieve
any Interested Shareholder from any fiduciary obligation imposed by law.

     Section 6. Amendment, Repeal, etc.  Notwithstanding any other provision of
or the By-Laws of the Company (and notwithstanding the fact that a lesser
percentage may be specified by law, these Articles of Incorporation or the
By-Laws of the Company), the affirmative vote of the holders of 80% or more of
the outstanding shares of the Company's Common Stock shall be required to amend
or repeal, or adopt any provisions inconsistent with this Article V.

                                   ARTICLE VI

     The personal liability of a director of the corporation to the corporation
or its shareholders for money damages for any action taken, or any failure to
take any action, as a director, shall be eliminated; provided, however, that the
liability of a director shall not be eliminated for (i) the amount of a
financial benefit received by a director to which he is not entitled, (ii) an
intentional infliction of harm on the corporation or the shareholders, (iii) a
violation of Section 30-1-833 of the Idaho Business Corporation Act, or (iv) an
intentional violation of criminal law.

                                  ARTICLE VII

     The corporation shall be obligated to indemnify any individual who is a
party to a proceeding because he is a director of the corporation against
liability to any person for action taken, or any failure to take any action, as
a director, and expenses incurred in the proceeding to the fullest extent
provided by law in accordance with Section 30-1-851(1)(b) of the Idaho Business
Corporation Act, except liability for (i) receipt of a financial benefit to
which he is not entitled, (ii) an intentional infliction of harm on the
corporation or its shareholders, (iii) a violation of Section 30-1-833 of the
Idaho Business Corporation Act, or (iv) an intentional violation of criminal
law.

     The foregoing Restated and Amended Articles of Incorporation, which include
amendments to the Articles of Incorporation, correctly set forth the provisions
of the Articles of Incorporation as heretofore and hereby amended, and supersede
the original Articles of Incorporation and all previous amendments thereto.

                                          By

                                          --------------------------------------
                                                    Dennis E. Wheeler
                                                   Its Chairman of the
                                                   Board, President and
                                                 Chief Executive Officer

                                          and

                                          --------------------------------------
                                                      Its Secretary

Dated             , 1999

                                       E-5
<PAGE>   93
                        COEUR D'ALENE MINES CORPORATION

         400 COEUR D'ALENE MINES BUILDING, 505 FRONT AVENUE, P.O. BOX 1
                           COEUR D'ALENE, IDAHO 83814

                  MANDATORY ADJUSTABLE REDEEMABLE CONVERTIBLE
                                SECURITIES PROXY

           THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS FOR THE
   ANNUAL MEETING OF SHAREHOLDERS ON SEPTEMBER 8, 1999, 9:30 A.M., LOCAL TIME

The undersigned appoints Dennis E. Wheeler or, in his absence, Geoffrey A.
Burns, proxy of the undersigned, with full power of substitution, to vote all
shares of Coeur d'Alene Mines Corporation Mandatory Adjustable Redeemable
Convertible Securities the undersigned is entitled to vote at the Annual
Meeting of Shareholders to be held September 8, 1999, or at any adjournment
thereof, with all powers the undersigned would have if personally present.

The shares will be voted as directed, and with respect to other matters of
business properly before the meeting as the Proxies shall decide. If no
direction is made, this Proxy will be voted FOR Proposals 1 through 7.

                                                     (Continued on reverse side)

<PAGE>   94

     THE BOARD OF DIRECTORS RECOMMENDS VOTING FOR THE FOLLOWING PROPOSALS:

                                                             [X] Please mark
                                                                 your votes like
                                                                 this in blue or
                                                                 black ink.

<TABLE>
<S>                                    <C>
1. ELECTION OF DIRECTORS               (INSTRUCTION; To withhold authority to vote for any individual nominee, strike a line through
                                       the nominee's name on the list below.)
    FOR all nominees       WITHHOLD
      listed below         AUTHORITY   C.D. ANDRUS, J.C. BENNETT, J.J. CURRAN, J.A. McCLURE, R.E. MELLOR,
       (except as         to vote for  J.H. ROBINSON, T.R. WINTERER and D.E. WHEELER
      marked to the      all nominees
     contrary below)     listed below

         [ ]                 [ ]
         FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN
2.       [ ]      [ ]        [ ]                 4.       [ ]      [ ]        [ ]                 6.       [ ]      [ ]        [ ]
         FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN
3.       [ ]      [ ]        [ ]                 5.       [ ]      [ ]        [ ]                 7.       [ ]      [ ]        [ ]

                                                                                I PLAN TO ATTEND THE MEETING.    YES[ ]      NO[ ]
                                                                      -----
                                                                          |
                                                                          |
                                                                                IN THEIR DISCRETION, THE PROXIES ARE AUTHORIZED TO
                                                                                VOTE UPON SUCH OTHER BUSINESS AS MAY COME BEFORE
                                                                                THE MEETING.

                                                                                PLEASE COMPLETE, SIGN, DATE AND MAIL THIS PROXY
                                                                                PROMPTLY IN THE ENCLOSED POSTAGE-PAID ENVELOPE.

                                                                                NOTE: SEE BELOW FOR CORRESPONDING PROPOSALS
</TABLE>

Signature(s) _________________________________________________ Date ___________

NOTE: Please sign as name appears hereon. Joint owners should each sign. When
signing as attorney, executor, administrator, trustee or guardian, please give
full title as such.

                          /\ FOLD AND DETACH HERE /\

            PLEASE MARK YOUR VOTES IN THE CORRESPONDING BOXES ABOVE

1. ELECTION OF DIRECTORS (INSTRUCTION: To withhold authority to vote for any
   individual nominee, strike a line through the nominee's name on the list
   above.)

2. PROPOSAL REGARDING ISSUANCE OF COMMON STOCK FOR ACQUISITION OF CERTAIN
   SILVER ASSETS OF ASARCO INCORPORATED

3. PROPOSAL REGARDING INCREASE IN AUTHORIZED SHARES OF COMMON STOCK

4. PROPOSAL REGARDING INCREASE IN AUTHORIZED SHARES OF PREFERRED STOCK

5. PROPOSAL REGARDING LIMITATION OF DIRECTOR LIABILITY

6. PROPOSAL REGARDING INDEMNIFICATION OF DIRECTORS

7. PROPOSAL REGARDING NON-SUBSTANTIVE CHANGES TO THE ARTICLES OF INCORPORATION

<PAGE>   95
                        COEUR D'ALENE MINES CORPORATION

         400 COEUR D'ALENE MINES BUILDING, 505 FRONT AVENUE, P.O. BOX 1
                           COEUR D'ALENE, IDAHO 83814

                               COMMON STOCK PROXY

           THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS FOR THE
   ANNUAL MEETING OF SHAREHOLDERS ON SEPTEMBER 8, 1999, 9:30 A.M., LOCAL TIME

The undersigned appoints Dennis E. Wheeler or, in his absence, Geoffrey A.
Burns, proxy of the undersigned, with full power of substitution, to vote all
shares of Coeur d'Alene Mines Corporation common stock the undersigned is
entitled to vote at the Annual Meeting of Shareholders to be held September 8,
1999, or at any adjournment thereof, with all powers the undersigned would have
if personally present.

The shares will be voted as directed, and with respect to other matters of
business properly before the meeting as the Proxies shall decide. If no
direction is made, this Proxy will be voted FOR Proposals 1 through 7.

                                                     (Continued on reverse side)
<PAGE>   96

     THE BOARD OF DIRECTORS RECOMMENDS VOTING FOR THE FOLLOWING PROPOSALS:

                                                             [X] Please mark
                                                                 your votes like
                                                                 this in blue or
                                                                 black ink.

<TABLE>
<S>                                    <C>
1. ELECTION OF DIRECTORS               (INSTRUCTION; To withhold authority to vote for any individual nominee, strike a line through
                                       the nominee's name on the list below.)
    FOR all nominees       WITHHOLD
      listed below         AUTHORITY   C.D. ANDRUS, J.C. BENNETT, J.J. CURRAN, J.A. McCLURE, R.E. MELLOR,
       (except as         to vote for  J.H. ROBINSON, T.R. WINTERER and D.E. WHEELER
      marked to the      all nominees
     contrary below)     listed below

         [ ]                 [ ]
         FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN
2.       [ ]      [ ]        [ ]                 4.       [ ]      [ ]        [ ]                 6.       [ ]      [ ]        [ ]
         FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN                        FOR    AGAINST    ABSTAIN
3.       [ ]      [ ]        [ ]                 5.       [ ]      [ ]        [ ]                 7.       [ ]      [ ]        [ ]

                                                                                I PLAN TO ATTEND THE MEETING.    YES[ ]      NO[ ]
                                                                      -----
                                                                          |
                                                                          |
                                                                                IN THEIR DISCRETION, THE PROXIES ARE AUTHORIZED TO
                                                                                VOTE UPON SUCH OTHER BUSINESS AS MAY COME BEFORE
                                                                                THE MEETING.

                                                                                PLEASE COMPLETE, SIGN, DATE AND MAIL THIS PROXY
                                                                                PROMPTLY IN THE ENCLOSED POSTAGE-PAID ENVELOPE.

                                                                                NOTE: SEE BELOW FOR CORRESPONDING PROPOSALS
</TABLE>

Signature(s) _________________________________________________ Date ___________

NOTE: Please sign as name appears hereon. Joint owners should each sign. When
signing as attorney, executor, administrator, trustee or guardian, please give
full title as such.

                          /\ FOLD AND DETACH HERE /\

            PLEASE MARK YOUR VOTES IN THE CORRESPONDING BOXES ABOVE

1. ELECTION OF DIRECTORS (INSTRUCTION: To withhold authority to vote for any
   individual nominee, strike a line through the nominee's name on the list
   above.)

2. PROPOSAL REGARDING ISSUANCE OF COMMON STOCK FOR ACQUISITION OF CERTAIN
   SILVER ASSETS OF ASARCO INCORPORATED

3. PROPOSAL REGARDING INCREASE IN AUTHORIZED SHARES OF COMMON STOCK

4. PROPOSAL REGARDING INCREASE IN AUTHORIZED SHARES OF PREFERRED STOCK

5. PROPOSAL REGARDING LIMITATION OF DIRECTOR LIABILITY

6. PROPOSAL REGARDING INDEMNIFICATION OF DIRECTORS

7. PROPOSAL REGARDING NON-SUBSTANTIVE CHANGES TO THE ARTICLES OF INCORPORATION



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