STILLWATER MINING CO /DE/
POS EX, 1998-10-19
MISCELLANEOUS METAL ORES
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<PAGE>
 

   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 19, 1998
                                                  REGISTRATION NO. 333-58251
================================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                                        
                            ____________________

                         Post-Effective Amendment No.1
                                      to
                                   FORM S-3
            Registration Statement under the Securities Act of 1933
                                        
                             ____________________
                                        
                           STILLWATER MINING COMPANY
             (Exact name of registrant as specified in its charter)

                            ____________________

             DELAWARE                                 81-0480654
   (State or other jurisdiction of 
    incorporation or organization)          (I.R.S. Employer Identification No.)

                      717 SEVENTEENTH STREET, SUITE 1480
                            Denver, Colorado  80202
                                (303) 978-2525
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                             ____________________

                              WILLIAM E. NETTLES
                     Chairman and Chief Executive Officer
                           Stillwater Mining Company
                      717 Seventeenth Street, Suite 1480
                            Denver, Colorado  80202
                                (303) 978-2525
(Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                  Copies to:
                               PAUL HILTON, ESQ.
                          Davis, Graham & Stubbs LLP
                            370 Seventeenth Street
                            Denver, Colorado 80202
                                (303) 892-9400

                             ____________________

         APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC:
 From time to time after the effective date of this Registration Statement as
                         determined by the Registrant.

     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [_] 

          If any of the securities being registered on this Form are to be
offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, other than securities offered only in connection with
dividend or reinvestment plans, check the following box.  [X]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]

     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

     If delivery of the prospectus is expected to be made pursuant to Rule 434,
check the following box. [_]

<PAGE>
 
                                    PART II
                                        
                    INFORMATION NOT REQUIRED IN PROSPECTUS


ITEM 16.    EXHIBITS

     1.1  Form of Underwriting Agreement--Equity+

     1.2  Form of Underwriting Agreement--Debt*

     4.1  Amended and Restated Certificate of Incorporation of the Registrant
          (incorporated by reference to Exhibit 3.4 to the 1994 S-1) dated
          December 2, 1995.**

     4.2  Amended and Restated By-Laws of the Registrant (incorporated by
          reference to Exhibit 3.4 to the 1994 S-1).**

     4.3  Form of Indenture for Debt Securities**

     4.4  Form of Debt Security (included in Exhibit 4.3)**

     4.5  Form of Common Stock Warrant Agreement*

     4.6  Form of Common Stock Warrant Certificate (included in Exhibit 4.5)*

     4.7  Form of Preferred Stock Warrant Agreement*

     4.8  Form of Preferred Stock Warrant Certificate (included in Exhibit 
          4.7)*

     4.9  Form of Debt Securities Warrant Agreement*

     4.10 Form of Debt Securities Warrant Certificate (included in Exhibit 
          4.9)*

     4.11 Form of  Deposit Agreement, including form of Depositary Receipt for
          Depositary Shares*

     5.1  Opinion of Davis, Graham & Stubbs LLP**

     12.1 Statement re: Computation of Ratio of Earnings to Fixed Charges**

     23.1 Consent of Price Waterhouse LLP**

     23.2 Consent of Behre Dolbear & Company, Inc.+

     23.3 Consent of Davis, Graham & Stubbs LLP (included in Exhibit 5.1)**

     24   Powers of Attorney  (included on signature pages)**

     25   Form T-1 -- Statement of Eligibility and Qualification under the Trust
          Indenture Act of 1939*

     *    To be filed by amendment or incorporated by reference herein
     **   Filed previously
     +    Filed herewith 


                                      II-1

<PAGE>
 
                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in Denver, Colorado on the 19th day of October, 1998.


                              STILLWATER MINING COMPANY


                              By:  /s/ WILLIAM E. NETTLES*
                                   ------------------------------------------
                                   William E. Nettles
                                   Chairman and Chief Executive Officer


      Pursuant to the requirements of the Securities Act, this Registration 
Statement on Form S-3 has been signed by the following persons in the capacities
and on the dates indicated.

<TABLE>
<CAPTION>
SIGNATURES                                TITLE                          DATE
<S>                             <C>                                   <C>  
/s/ William E. Nettles*         Chairman of the Board, Chief          October 19, 1998
- --------------------------      Executive Officer and Director
William E. Nettles              (principal executive officer)
                              
/s/ James A. Sabala             Vice President and Chief Financial    October 19, 1998
- --------------------------      Officer (principal financial and
James A. Sabala                 accounting officer)
                              
/s/ Ray W. Ballmer*             Director                              October 19, 1998
- --------------------------    
Ray W. Ballmer                
                              
/s/ Douglas D. Donald*          Director                              October 19, 1998
- --------------------------    
Douglas D. Donald             
</TABLE> 

                                      II-2

<PAGE>
 
<TABLE>

<S>                             <C>                                   <C>     
/s/ John W. Eschenlohr*         Director                              October 19, 1998
- --------------------------    
John W. Eschenlohr            
                                 
/s/ Lawrence M. Glaser*         Director                              October 19, 1998
- --------------------------      
Lawrence M. Glaser              
   
/s/ Pete Ingersoll*             Director                              October 19, 1998
- --------------------------      
Pete Ingersoll                  
                                
/s/ Ted Schwinden*              Director                              October 19, 1998
- --------------------------      
Ted Schwinden                   
                                
/s/ Peter Steen*                Director                              October 19, 1998
- --------------------------           
Peter Steen
</TABLE>

* By: /s/ James A. Sabala
      -------------------
      James A. Sabala
      Attorney-in-fact




                                      II-3

<PAGE>
 
                                 EXHIBIT INDEX


1.1  Form of Underwriting Agreement -- Equity

23.2 Consent of Behre Dolbear & Company, Inc.


                                     II-4


<PAGE>
 
                                                                     Exhibit 1.1

                           Stillwater Mining Company

                                2,000,000 Shares
                                  Common Stock
                                ($.01 par value)
                                    Form of
                             Underwriting Agreement
                                                              New York, New York
                                                               October ___, 1998

To the Representatives
   named in Schedule I
   hereto of the Under-
   writers named in
   Schedule II hereto


Ladies and Gentlemen:

          Stillwater Mining Company, a corporation organized under the laws of
Delaware (the "Company"), proposes to sell to the several underwriters named in
Schedule II hereto (the "Underwriters"), for whom you (the "Representatives")
are acting as representatives, the number of shares of Common Stock, $.01 par
value ("Common Stock"), of the Company set forth in Schedule I hereto (the
"Securities") (said shares to be issued and sold by the Company being
hereinafter called the "Underwritten Securities").  The Company also proposes to
grant to the Underwriters an option to purchase up to the number of additional
shares of Common Stock set forth in Schedule II hereto to cover over-allotments
(the "Option Securities;" the Option Securities, together with the Underwritten
Securities, being hereinafter called the "Securities"). To the extent there are
no additional Underwriters listed on Schedule I other than you, the term
Representatives as used herein shall mean you, as Underwriters, and the terms
Representatives and Underwriters shall mean either the singular or plural as the
context requires.  Any reference herein to the Registration Statement, the Basic
Prospectus, any Preliminary Final Prospectus or the Final Prospectus shall be
deemed to refer to and include the documents incorporated by reference therein
pursuant to Item 12 of Form S-3 which were filed under the Exchange Act on or
before the Effective Date of the Registration Statement or the issue date of the
Basic Prospectus, any Preliminary Final Prospectus or the Final 
<PAGE>
 
Prospectus, as the case may be; and any reference herein to the terms "amend",
"amendment" or "supplement" with respect to the Registration Statement, the
Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus shall
be deemed to refer to and include the filing of any document under the Exchange
Act or pursuant to Rule 462(d) under the Act after the Effective Date of the
Registration Statement or the issue date of the Basic Prospectus, any
Preliminary Final Prospectus or the Final Prospectus, as the case may be, deemed
to be incorporated therein by reference. Certain terms used herein are defined
in Section 17 hereof.

          1.  Representations and Warranties.  The Company represents and
              -------------------------------                            
warrants to, and agrees with, each Underwriter as set forth below in this
Section 1.

          (a)  The Company meets the requirements for use of Form S-3 under the
     Act and has prepared and filed with the Commission a registration statement
     (the file number of which is set forth in Schedule I hereto) on Form S-3,
     including a related basic prospectus, for registration under the Act of the
     offering and sale of the Securities.  The Company may have filed one or
     more amendments or supplements thereto, including a Preliminary Final
     Prospectus, each of which has previously been furnished to you.  The
     Company will next file with the Commission one of the following: (1) after
     the Effective Date of such registration statement, a final prospectus
     supplement relating to the Securities in accordance with Rules 430A and
     424(b), (2) prior to the Effective Date of such registration statement, an
     amendment to such registration statement (including the form of final
     prospectus supplement) or (3) a final prospectus in accordance with Rules
     415 and 424(b).  In the case of clause (1), the Company has included in
     such registration statement, as amended at the Effective Date, all
     information (other than Rule 430A Information) required by the Act and the
     rules thereunder to be included in such registration statement and the
     Final Prospectus.  As filed, such final prospectus supplement or such
     amendment and form of final prospectus supplement shall contain all Rule
     430A Information, together with all other such required information, and,
     except to the extent the Representatives shall agree in writing to a
     modification, shall be in all substantive respects in the form furnished to
     you prior to the Execution Time or, to the extent not completed at the
     Execution Time, shall contain only such specific additional information and
     other changes (beyond that contained in the Basic Prospectus and any
     Preliminary Final Prospectus) as the Company has advised you, prior to the
     Execution Time, will be included or made therein.  The Registration
     Statement, at the Execution Time, meets the requirements set forth in Rule
     415(a)(1)(x).

          (b)  On the Effective Date, the Registration Statement did or will,
     and when the Final Prospectus is first filed (if required) in accordance
     with Rule 424(b) and on the Closing Date (as defined herein) and on any
     date on which Option Securities are purchased, if such date is not the
     Closing Date (a "settlement date"), the Final Prospectus (and any
     supplement thereto) will, comply in all material respects with the
     applicable requirements of the Act and the Exchange Act and the respective
     rules thereunder; on the Effective Date and at the Execution Time, the
     Registration Statement did not or will not contain any untrue statement of
     a material fact or omit to state any material fact required to be stated
     therein or necessary in order to make the statements therein not
     misleading; and, on the Effective Date, the Final Prospectus, if filed as a
     post-effective amendment and not pursuant to Rule 424(b), will not, and on
     the date of any filing pursuant to 

                                       2
<PAGE>
 
     Rule 424(b) and on the Closing Date and any settlement date, the Final
     Prospectus (together with any supplement thereto) will not, include any
     untrue statement of a material fact or omit to state a material fact
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading; provided, 
                                                               --------
     however, that the Company makes no representations or
     -------                                              
     warranties as to the information contained in or omitted from the
     Registration Statement or the Final Prospectus (or any supplement thereto)
     in reliance upon and in conformity with information furnished in writing to
     the Company by or on behalf of any Underwriter through the Representatives
     specifically for inclusion in the Registration Statement or the Final
     Prospectus (or any supplement thereto).

          (c)  The Company has no significant subsidiaries within the meaning of
     Rule 1-02 of Regulation S-X under the Act.  The Company has been duly
     incorporated and is validly existing as a corporation in good standing
     under the laws of the jurisdiction in which it is chartered or organized
     with full corporate power and authority to own its properties and conduct
     its business as described in the Final Prospectus, and is duly qualified to
     do business as a foreign corporation and is in good standing under the laws
     of Colorado, Montana and each other jurisdiction which requires such
     qualification wherein it owns or leases material properties or conducts
     material business, except where any failure to be so qualified would not
     individually or in the aggregate have a material adverse effect on the
     condition (financial or otherwise), earnings, business or properties of the
     Company and its subsidiaries, taken as a whole.

          (d)  The Company's authorized equity capitalization is as set forth in
     the Final Prospectus; the Common Stock of the Company conforms in all
     material respects to the description thereof contained in the Final
     Prospectus; the outstanding shares of Common Stock have been duly and
     validly authorized and issued and are fully paid and nonassessable; the
     Securities being sold hereunder have been duly and validly authorized, and,
     when issued and delivered to and paid for by the Underwriters pursuant to
     this Agreement, will be fully paid and nonassessable; the Securities have
     been duly authorized for listing, subject to official notice of issuance on
     the American Stock Exchange; the certificates for the Securities are in
     valid and sufficient form; the holders of outstanding shares of Common
     Stock of the Company are not entitled to preemptive or other rights to
     subscribe for the Securities; and, except as set forth in the Final
     Prospectus, no options, warrants or other rights to purchase, agreements or
     other obligations to issue, or rights to convert any obligations into or
     exchange any securities for, shares of Common Stock of or ownership
     interests in the Company are outstanding.

          (e)  Except for the Rights Agreement Dated October 25, 1995 and the
     Registration Agreement dated April 29, 1996, no person or entity has any
     right, contractual or otherwise, to cause the Company or any of its
     affiliates to issue to such person or entity, or register for offer or sale
     pursuant to the Act, any securities of the Company of any of its
     affiliates, in connection with the transactions contemplated by this
     Underwriting Agreement or the Registration Statement.

                                       3
<PAGE>
 
          (f)  There is no franchise, contract or other document of a character
     required to be described in the Registration Statement or Final Prospectus,
     or to be filed as an exhibit thereto, which is not described or filed as
     required.

          (g)  This Underwriting Agreement has been duly authorized by the
     Company and, at the Closing Date, will have been duly executed and
     delivered by the Company.

          (h)  The Company is not and, after giving effect to the offering and
     sale of the Securities and the application of the proceeds thereof as
     described in the Final Prospectus, will not be an "investment company" as
     defined in the Investment Company Act of 1940, as amended.

          (i)  No consent, approval, authorization, filing with or order of any
     court or governmental agency or body is required in connection with the
     transactions contemplated herein, except such as have been obtained under
     the Act and such as may be required under the blue sky laws of any
     jurisdiction in connection with the purchase and distribution of the
     Securities by the Underwriters in the manner contemplated herein and in the
     Final Prospectus.

          (j)  Neither the issue and sale of the Securities nor the consummation
     of any other of the transactions herein contemplated nor the fulfillment of
     the terms hereof will conflict with, result in a breach or violation or
     imposition of any lien, charge or encumbrance upon any property or assets
     of the Company or any of its subsidiaries pursuant to, (i) the charter or
     by-laws of the Company or its subsidiaries or (ii) the terms of any
     indenture, contract, lease, mortgage, deed of trust, note agreement, loan
     agreement or other agreement, obligation, condition, covenant or instrument
     to which the Company or any of its subsidiaries is a party or bound or to
     which their respective property is subject, or (iii) any statute, law,
     rule, regulation, judgment, order or decree applicable to the Company or
     its subsidiaries of any court, regulatory body, administrative agency,
     governmental body, arbitrator or other authority having jurisdiction over
     the Company or its subsidiaries or any of their respective properties,
     which breach, violation or imposition would individually or in the
     aggregate have a material adverse effect on the condition (financial or
     otherwise), earnings, business or properties of the Company and its
     subsidiaries, taken as a whole.

          (k)  No default exists, and no event has occurred which, with notice
     or lapse of time or both, would constitute a default in, the due
     performance and observance of any term, covenant or condition of any
     material indenture, credit agreement, mortgage, deed of trust, lease or
     other agreement or instrument to which the Company is a party or by which
     the Company or any of its properties is bound except such as would not have
     a material adverse effect on the condition (financial or otherwise),
     earnings, business or properties of the Company.

          (l)  The consolidated financial statements and schedules of the
     Company and its consolidated subsidiary included in the Final Prospectuses
     and the Registration Statement 

                                       4

<PAGE>
 
     present fairly in all material respects the financial condition, results of
     operations and cash flows of the Company as of the dates and for the
     periods indicated, comply as to form with the applicable accounting
     requirements of the Act and the rules and regulations thereunder and have
     been prepared in conformity with generally accepted accounting principles
     applied on a consistent basis throughout the periods involved (except as
     otherwise noted therein). The operating and financial data set forth under
     the captions "Summary Operating and Financial Information" and "Selected
     Financial Information" in the Final Prospectus and Registration Statement
     accurately summarize the information included therein.

          (m)  No action, suit or proceeding by or before any court or
     governmental agency, authority or body or any arbitrator involving the
     Company and its subsidiaries or their respective properties is pending or
     to the Company's knowledge, threatened that (i) could reasonably be
     expected to have a material adverse effect on the performance by the
     Company of this Agreement or the consummation by the Company of any of the
     transactions contemplated hereby or (ii) could reasonably be expected to
     have a material adverse effect on the condition (financial or otherwise),
     earnings, business or properties of the Company and its subsidiaries, taken
     as a whole, whether or not arising from transactions in the ordinary course
     of business, except as set forth in or contemplated in the Final Prospectus
     (exclusive of any supplement thereto) (except, in the case of this clause
     (ii), for those that have been disclosed in the Final Prospectus).

          (n)  Except as set forth in the Final Prospectus, each of the Company
     and its subsidiaries, owns, leases or has possessory rights to all such
     properties as are necessary to the conduct of its operations as presently
     conducted, and the Company, directly or indirectly through its
     subsidiaries, owns, leases or has possessory rights to all  properties as
     are necessary to explore, develop and exploit the expansion at the
     Stillwater Mine in Nye, Montana and the East Boulder site in Sweet Grass
     County, Montana (as described in the Final Prospectus), subject, to the
     extent such properties consist of unpatented mining claims, to the
     paramount title of the United States of America, to the rights of third
     parties to have access to the surface of those claims and to explore and
     develop leasable minerals from within the boundaries of those claims except
     where the failure to own, lease or possess the rights for any property
     would not individually or in the aggregate have a material adverse effect
     on the condition (financial or otherwise), earnings, business or properties
     of the Company and its subsidiaries, taken as a whole.  Nothing herein
     shall be deemed to be a representation or warranty by the Company that any
     of its unpatented claims (whether owned or leased) contain a discovery of
     valuable minerals.

          (o)  Except as set forth in the Final Prospectus, neither the Company
     nor its subsidiaries is in violation of any law, rule or regulation of any
     federal, state or local governmental or regulatory authority applicable to
     it or is not in non-compliance with any term or condition of, or has failed
     to obtain and maintain in effect, any license, certificate, permit,
     registration, concession, franchise, or other governmental authorization
     required for the ownership or lease of its property or the conduct of its
     business, which violation, non-compliance or failure would individually or
     in the aggregate have a material adverse 

                                       5
<PAGE>
 
     effect on the condition (financial or otherwise), earnings, business or
     properties of the Company and its subsidiaries, taken as a whole, whether
     or not arising from transactions in the ordinary course of business; and
     the Company has not received written notice of any proceedings relating to
     the revocation or material modification of any such license, certificate,
     permit or other authorization which, individually or in the aggregate, if
     the subject of an unfavorable decision, ruling or finding, would result in
     a material adverse change in the condition (financial or otherwise),
     earnings, business or properties of the Company and its subsidiaries, taken
     as a whole, whether or not arising from transactions in the ordinary course
     of business, except as set forth in or contemplated in the Final
     Prospectus.

          (p)  Neither the Company nor its subsidiaries is in violation or
     default of (i) any provision of its charter or bylaws, or (ii) any
     judgment, order or decree of any court, regulatory body, administrative
     agency, governmental body, arbitrator or other authority having
     jurisdiction over the Company or its subsidiaries or any of its properties,
     as applicable, which violation or default would individually or in the
     aggregate have a material adverse effect on the condition (financial or
     otherwise), earnings, business or properties of the Company and its
     subsidiaries, taken as a whole.

          (q)  Price Waterhouse LLP, who have certified certain financial
     statements of the Company and its consolidated subsidiaries and delivered
     their report with respect to the audited consolidated financial statements
     and schedules included in the Final Prospectus, and its successor entity,
     PricewaterhouseCoopers LLP, are independent public accountants with respect
     to the Company within the meaning of the Act and the applicable published
     rules and regulations thereunder.

          (r)  The Company has filed all federal, state and local tax returns
     that are required to be filed or has requested extensions thereof (except
     in any case in which the failure so to file would not have a material
     adverse effect on the condition (financial or otherwise), earnings,
     business or properties of the Company and its subsidiaries, taken as a
     whole, whether or not arising from transactions in the ordinary course of
     business, except as set forth in or contemplated in the Final Prospectus
     and has paid all taxes required to be paid by it and any other assessment,
     fine or penalty levied against it, to the extent that any of the foregoing
     is due and payable, except for any such assessment, fine or penalty that is
     currently being contested in good faith or as would not have a material
     adverse effect on the condition (financial or otherwise), earnings,
     business or properties of the Company and its subsidiaries, taken as a
     whole, whether or not arising from transactions in the ordinary course of
     business, except as set forth in or contemplated in the Final Prospectus.

          (s)  No labor dispute with the employees of the Company or its
     subsidiaries exists or to the Company's knowledge, is threatened or
     imminent that would result in a material adverse change in the condition
     (financial or otherwise), earnings, business or properties of the Company
     and its subsidiaries, taken as a whole, whether or not arising from

                                       6
<PAGE>
 
     transactions in the ordinary course of business, except as set forth in or
     contemplated in the Final Prospectus.

          (t)  The Company and its subsidiaries are insured by insurers of
     recognized financial responsibility against such losses and risks and in
     such amounts as are prudent and customary in the businesses in which they
     are engaged; neither the Company nor its subsidiaries has been refused any
     insurance coverage sought or applied for; and neither the Company nor its
     subsidiaries has any reason to believe that it will not be able to renew
     its existing insurance coverage as and when such coverage expires or to
     obtain similar coverage from similar insurers as may be necessary to
     continue its business at a cost that would not have a material adverse
     change in the condition (financial or otherwise), earnings, business or
     properties of the Company and its subsidiaries, taken as a whole, except as
     set forth in or contemplated in the Final Prospectus.

          (u)  Neither the Company nor its subsidiaries is in violation of any
     federal, state or local law or regulation relating to occupational safety
     and health or to the storage, handling or transportation of hazardous or
     toxic materials and the Company and its subsidiaries have received all
     permits, licenses or other approvals required of them under applicable
     federal, state and local occupational safety and health and environmental
     laws and regulations to conduct their respective businesses as presently
     conducted, and the Company and its subsidiaries are in compliance with all
     terms and conditions of any such permit, license or approval, except any
     such violation of law or regulation, failure to receive required permits,
     licenses or other approvals or failure to comply with the terms and
     conditions of such permits, licenses or approvals which would not, singly
     or in the aggregate, result in a material adverse change in the condition
     (financial or otherwise), earnings, business or properties of the Company
     and its subsidiaries, taken as a whole, except as set forth in or
     contemplated in the Final Prospectus.

          (v)  The Company and each of its subsidiaries maintain a system of
     internal accounting controls sufficient to provide reasonable assurance
     that (i) transactions are executed in accordance with management's general
     or specific authorizations; (ii) transactions are recorded as necessary to
     permit preparation of financial statements in conformity with generally
     accepted accounting principles and to maintain asset accountability; (iii)
     access to assets is permitted only in accordance with management's general
     or specific authorization; and (iv) the recorded accountability for assets
     is compared with the existing assets at reasonable intervals and
     appropriate action is taken with respect to any differences.

          (w)  The Company's independent technical consultants, Behre Dolbear &
     Company, who have affirmed and verified the proven and probable ore
     reserves located at Stillwater in Nye, Montana and East Boulder, Sweet
     Grass County, Montana as of January 1, 1998 set forth in the Final
     Prospectus are experts (as such term is used in Section 11 (b) (3) of the
     Act) in the field of mining engineering and have consented to being named
     in the Registration Statement.

                                       7

<PAGE>
 
          (x)  The information set forth in the Registration Statement and the
     Final Prospectus relating to the proven and probable ore reserves located
     at the Stillwater Mine in Nye, Montana and East Boulder, Sweet Grass
     County, Montana as of January 1, 1998 has been prepared materially in
     accordance with methods generally applied in the mining industry and such
     proven and probable ore reserves information conforms in all material
     respects to the rules and regulations of the Commission.

          (y)  The Company has not taken, directly or indirectly, any action
     designed to cause or to result in, or that has constituted or which might
     reasonably be expected to constitute, the stabilization or manipulation of
     the price of any security of the Company.

          (z)  Subsequent to the respective dates as of which information is
     given in the Final Prospectus, (i) the Company has not incurred any
     material liability or obligation, direct or contingent, nor entered into
     any material transaction in the ordinary course of business (other than the
     transactions contemplated by this Underwriting Agreement); (ii) the Company
     has not purchased any of its outstanding Common Stock, nor declared, paid
     or otherwise made any dividend or distribution of any kind on its Common
     Stock; and (iii) there has not been any material change in the capital
     stock, short-term debt or long-term debt of the Company, except in each
     case as described in the Final Prospectus.

          (aa)  The Company owns or possesses all material patents, patent
     applications, trademarks, service marks, trade names, licenses, copyrights
     and proprietary or other confidential information currently employed by it
     in connection with its business, and the Company has not received any
     written notice of infringement of, or conflict with, asserted rights of any
     third party with respect to any of the foregoing which, individually or in
     the aggregate, if the subject of an unfavorable decision, ruling or
     finding, would result in a material adverse change in the condition
     (financial or otherwise), earnings, business or properties of the Company,
     except as described in or contemplated in the Final Prospectus or
     Prospectus Supplement.

Any certificate signed by any officer of the Company and delivered to the
Representatives or counsel for the Underwriters in connection with the offering
of the Securities shall be deemed a representation and warranty by the Company,
as to matters covered thereby, to each Underwriter.

          2.  Purchase and Sale.  (a) Subject to the terms and conditions and in
              ------------------                                                
reliance upon the representations and warranties herein set forth, the Company
agrees to sell to each Underwriter, and each Underwriter agrees, severally and
not jointly, to purchase from the Company, at a purchase price of $ _____ per
share, the amount of the Underwritten Securities set forth opposite such
Underwriter's name in Schedule II hereto.

          (b)  Subject to the terms and conditions and in reliance upon the
     representations and warranties herein set forth, the Company hereby grants
     an option to the several Underwriters to purchase, severally and not
     jointly, up to 300,000 Option Securities at the same purchase price per
     share as the Underwriters shall pay for the Underwritten Securities.  Said
     option may be exercised only to cover over-allotments in the sale of the

                                       8

<PAGE>
 
     Underwritten Securities by the Underwriters.  Said option may be exercised
     in whole or in part at any time (but not more than once) on or before the
     30th day after the date of the Final Prospectus upon written or telegraphic
     notice by the Representatives to the Company setting forth the number of
     shares of the Option Securities as to which the several Underwriters are
     exercising the option and the settlement date.  The number of shares of the
     Option Securities to be purchased by each Underwriter shall be the same
     percentage of the total number of shares of the Option Securities to be
     purchased by the several Underwriters as such Underwriter is purchasing of
     the Underwritten Securities, subject to such adjustments as you in your
     absolute discretion shall make to eliminate any fractional shares.

          3.  Delivery and Payment.  Delivery of and payment for the
              ---------------------                                 
Underwritten Securities and the Option Securities (if the option provided for in
Section 2(b) hereof shall have been exercised on or before the third Business
Day prior to the Closing Date) shall be  made on the date and at the time
specified in Schedule I hereto or at such time on such later date not more than
three Business Days after the foregoing date as the Representatives shall
designate, which date and time may be postponed by agreement between the
Representatives and the Company or as provided in Section 9 hereof (such date
and time of delivery and payment for the Securities being herein called the
"Closing Date").  Delivery of the Securities shall be made to the
Representatives for the respective accounts of the several Underwriters against
payment by the several Underwriters through the Representatives of the purchase
price thereof to or upon the order of the Company by wire transfer payable in
same-day funds to an account specified by the Company.  Delivery of the
Underwritten Securities and the Option Securities shall be made through the
facilities of The Depository Trust Company unless the Representatives shall
otherwise instruct.

          If the option provided for in Section 2(b) hereof is exercised after
the third Business Day prior to the Closing Date, the Company will deliver the
Option Securities (at the expense of the Company) to the Representatives, at 388
Greenwich Street, New York, New York, on the date specified by the
Representatives (which shall be within three Business Days after exercise of
said option) for the respective accounts of the several Underwriters, against
payment by the several Underwriters through the Representatives of the purchase
price thereof to or upon the order of the Company by wire transfer payable in
same-day funds to an account specified by the Company.  If settlement for the
Option Securities occurs after the Closing Date, the Company will deliver to the
Representatives on the settlement date for the Option Securities, and the
obligation of the Underwriters to purchase the Option Securities shall be
conditioned upon receipt of, supplemental opinions, certificates and letters
confirming as of such date the opinions, certificates and letters delivered on
the Closing Date pursuant to Section 6 hereof.

          4.  Offering by Underwriters.  It is understood that the several
              -------------------------                                   
Underwriters propose to offer the Securities for sale to the public as set forth
in the Final Prospectus.

          5.  Agreements.  The Company agrees with the several Underwriters
              -----------                                                  
that:

                                       9

<PAGE>
 
          (a)  The Company will use its best efforts to cause the Registration
     Statement, if not effective at the Execution Time, and any amendment
     thereof, to become effective. Prior to the termination of the offering of
     the Securities, the Company will not file any amendment of the Registration
     Statement or supplement (including the Final Prospectus or any Preliminary
     Final Prospectus) to the Basic Prospectus or any Rule 462(b) Registration
     Statement unless the Company has furnished you a copy for your review prior
     to filing and will not file any such proposed amendment or supplement to
     which you reasonably object.  Subject to the foregoing sentence, if the
     Registration Statement has become or becomes effective pursuant to Rule
     430A, or filing of the Final Prospectus is otherwise required under Rule
     424(b), the Company will cause the Final Prospectus, properly completed,
     and any supplement thereto to be filed with the Commission pursuant to the
     applicable paragraph of Rule 424(b) within the time period prescribed and
     will provide evidence satisfactory to the Representatives of such timely
     filing.  The Company will promptly advise the Representatives (1) when the
     Registration Statement, if not effective at the Execution Time, shall have
     become effective, (2) when the Final Prospectus, and any supplement
     thereto, shall have been filed (if required) with the Commission pursuant
     to Rule 424(b) or when any Rule 462(b) Registration Statement shall have
     been filed with the Commission, (3) when, prior to termination of the
     offering of the Securities, any amendment to the Registration Statement
     shall have been filed or become effective, (4) of any request by the
     Commission or its staff for any amendment of the Registration Statement, or
     any Rule 462(b) Registration Statement, or for any supplement to the Final
     Prospectus or for any additional information, (5) of the issuance by the
     Commission of any stop order suspending the effectiveness of the
     Registration Statement or the institution or threatening of any proceeding
     for that purpose and (6) of the receipt by the Company of any notification
     with respect to the suspension of the qualification of the Securities for
     sale in any jurisdiction or the institution or threatening of any
     proceeding for such purpose.  The Company will use its best efforts to
     prevent the issuance of any such stop order or the suspension of any such
     qualification and, if issued, to obtain as soon as possible the withdrawal
     thereof.

          (b)  If, at any time when a prospectus relating to the Securities is
     required to be delivered under the Act, any event occurs as a result of
     which the Final Prospectus as then supplemented would include any untrue
     statement of a material fact or omit to state any material fact necessary
     to make the statements therein in the light of the circumstances under
     which they were made not misleading, or if it shall be necessary to amend
     the Registration Statement or supplement the Final Prospectus to comply
     with the Act or the Exchange Act or the respective rules thereunder, the
     Company promptly will (1) notify the Representatives of such event, (2)
     prepare and file with the Commission, subject to the second sentence of
     paragraph (a) of this Section 5, an amendment or supplement which will
     correct such statement or omission or effect such compliance and (3) supply
     any supplemented Final Prospectus to you in such quantities as you may
     reasonably request.

          (c)  As soon as practicable, the Company will make generally available
     to its security holders and to the Representatives an earnings statement or
     statements of the 

                                       10

<PAGE>
 
     Company and its subsidiaries which will satisfy the provisions of Section
     11(a) of the Act and Rule 158 under the Act.

          (d)  The Company will furnish to the Representatives and counsel for
     the Underwriters, without charge, signed copies of the Registration
     Statement (including exhibits thereto) and to each other Underwriter a copy
     of the Registration Statement (without exhibits thereto) and, so long as
     delivery of a prospectus by an Underwriter or dealer may be required by the
     Act, as many copies of the Preliminary Final Prospectus and Final
     Prospectus and any supplement thereto as the Representatives may reasonably
     request.  The Company will pay the expenses of printing or other production
     of all documents relating to the offering.

          (e)  The Company will arrange, if necessary, for the qualification of
     the Securities for sale under the laws of such jurisdictions as the
     Representatives may designate, will maintain such qualifications in effect
     so long as required for the distribution of the Securities and will pay any
     fee of the National Association of Securities Dealers, Inc., in connection
     with its review of the offering; provided that in no event shall the
     Company be obligated to qualify to do business in any jurisdiction where it
     is not now so qualified or to take any action that would subject it to
     service of process in suits, other than those arising out of the offering
     or sale of the Securities, in any jurisdiction where it is not now so
     subject.

          (f)  Until the Business Day set forth on Schedule I hereto, the
     Company will not, without the prior written consent of Salomon Smith Barney
     Inc., offer, sell or contract to sell, or otherwise dispose of (or enter
     into any transaction which is designed to, or might reasonably be expected
     to, result in the disposition (whether by actual disposition or effective
     economic disposition due to cash settlement or otherwise) by the Company or
     any affiliate of the Company or any person in privity with the Company or
     any affiliate of the Company) directly or indirectly, or announce the
     offering of, any other shares of Common Stock or any securities convertible
     into, or exchangeable for, shares of Common Stock; provided, however, that
                                                        --------  -------      
     the Company may issue and sell Common Stock pursuant to any employee stock
     option plan, stock ownership plan or dividend reinvestment plan of the
     Company in effect at the Execution Time and the Company may issue Common
     Stock issuable upon the conversion of securities or the exercise of
     warrants outstanding at the Execution Time.

          (g) The Company will not take, directly or indirectly, any action
     designed to or which has constituted or which might reasonably be expected
     to cause or result, under the Exchange Act or otherwise, in stabilization
     or manipulation of the price of any security of the Company to facilitate
     the sale or resale of the Securities.

          6.  Conditions to the Obligations of the Underwriters.  The
              --------------------------------------------------     
obligations of the Underwriters to purchase the Underwritten Securities and the
Option Securities, as the case may be, shall be subject to the accuracy of the
representations and warranties on the part of the Company contained herein as of
the Execution Time, the Closing Date and any settlement date 

                                       11
<PAGE>
 
pursuant to Section 3 hereof, to the accuracy of the statements of the Company
made in any certificates pursuant to the provisions hereof, to the performance
by the Company of its obligations hereunder and to the following additional
conditions:

          (a)  If the Registration Statement has not become effective prior to
     the Execution Time, unless the Representatives agree in writing to a later
     time, the Registration Statement will become effective not later than (i)
     6:00 PM New York City time on the date of determination of the public
     offering price, if such determination occurred at or prior to 3:00 PM New
     York City time on such date or (ii) 9:30 AM on the Business Day following
     the day on which the public offering price was determined, if such
     determination occurred after 3:00 PM New York City time on such date; if
     filing of the Final Prospectus, or any supplement thereto, is required
     pursuant to Rule 424(b), the Final Prospectus, and any such supplement,
     will be filed in the manner and within the time period required by Rule
     424(b); and no stop order suspending the effectiveness of the Registration
     Statement shall have been issued and no proceedings for that purpose shall
     have been instituted or threatened.

          (b)  The Company shall have requested and caused Davis, Graham &
     Stubbs LLP, counsel for the Company, to have furnished to the
     Representatives their opinion, dated the Closing Date and addressed to the
     Representatives, to the effect that:

               (i) the Company has been duly incorporated and is validly
          existing as a corporation in good standing under the laws of Delaware,
          with full corporate power and authority to own or lease, as the case
          may be, and to operate its properties and conduct its business as
          described in the Final Prospectus, and is duly qualified to do
          business as a foreign corporation and is in good standing under the
          laws of each jurisdiction which requires such qualification, except
          where the failure to be qualified would not have a material adverse
          effect, singly or in the aggregate, on the business, results or
          operations, financial condition or business affairs of the Company;

               (ii) the Company's authorized equity capitalization is as set
          forth in the Final Prospectus; the capital stock of the Company
          conforms in all material respects to the description thereof contained
          in the Final Prospectus; the Securities have been duly and validly
          authorized, and, when issued and delivered to and paid for by the
          Underwriters pursuant to this Agreement, will be fully paid and
          nonassessable; the Securities are duly listed, and admitted and
          authorized for trading, subject to official notice of issuance and
          evidence of satisfactory distribution, on the American Stock Exchange;
          the certificates for the Securities are in valid and sufficient form;
          and the holders of outstanding shares of capital stock of the Company
          are not entitled to any statutory preemptive rights to subscribe for
          the Securities;

               (iii) to the knowledge of such counsel, there is no pending
          action, suit or proceeding by or before any court or governmental
          agency, authority or body or 

                                       12
<PAGE>
 
          any arbitrator involving the Company or any of its subsidiaries or its
          or their property of a character required to be disclosed in the
          Registration Statement which is not adequately disclosed in the Final
          Prospectus, and there is no franchise, contract or other document of a
          character required to be described in the Registration Statement or
          Final Prospectus, or to be filed as an exhibit thereto, which is not
          described or filed as required; and the statements included or
          incorporated by reference in the Final Prospectus under the headings
          "Description of Capital Stock," "Risk Factors -- Governmental
          Regulations and Permitting" and "Risk Factors -- Impact of Possible
          New Mining Legislation and Title to Mining Claims" fairly summarize
          the matters therein described;

               (iv) the Registration Statement has become effective under the
          Act; any required filing of the Basic Prospectus, any Preliminary
          Final Prospectus and the Final Prospectus, and any supplements
          thereto, pursuant to Rule 424(b) has been made in the manner and
          within the time period required by Rule 424(b); to the knowledge of
          such counsel, no stop order suspending the effectiveness of the
          Registration Statement has been issued, no proceedings for that
          purpose have been instituted or  threatened and the Registration
          Statement and the Final Prospectus (other than the financial
          statements and other financial information contained therein, as to
          which such counsel need express no opinion) comply as to form in all
          material respects with the applicable requirements of the Act and the
          Exchange Act and the respective rules thereunder;

               (v) this Agreement has been duly authorized, executed and
          delivered by the Company;

               (vi) the Company is not and, after giving effect to the offering
          and sale of the Securities and the application of the proceeds thereof
          as described in the Final Prospectus, will not be, an "investment
          company" as defined in the Investment Company Act of 1940, as amended;

               (vii) no consent, approval, authorization, filing with or order
          of any court or governmental agency or body is required in connection
          with the transactions contemplated herein, except such as have been
          obtained under the Act and such as may be required under the blue sky
          laws of any jurisdiction in connection with the purchase and
          distribution of the Securities by the Underwriters in the manner
          contemplated in this Agreement and in the Final Prospectus and such
          other approvals (specified in such opinion) as have been obtained;

               (viii) neither the issue and sale of the Securities, nor the
          consummation of any other of the transactions herein contemplated nor
          the fulfillment of the terms hereof will conflict with, result in a
          breach or violation of or imposition of any lien, charge or
          encumbrance upon any property or assets of the Company or its
          subsidiaries pursuant to, (i) the charter or by-laws of the Company or
          its subsidiaries, (ii) the terms of any indenture, contract, lease,
          mortgage, deed of 

                                       13
<PAGE>
 
          trust, note agreement, loan agreement or other agreement filed as a
          material contract by the Company under the Exchange Act, to which the
          Company or its subsidiaries is a party or bound or to which its or
          their property is subject, or (iii) any statute, law, rule,
          regulation, judgment, order or decree applicable to the Company or its
          subsidiaries of any court, regulatory body, administrative agency,
          governmental body, arbitrator or other authority having jurisdiction
          over the Company or its subsidiaries or any of its or their
          properties; and

          Such counsel may disclaim responsibility for, and state that they have
     not independently verified, the accuracy, completeness or fairness of the
     financial statements, the notes thereto, and the other financial and
     reserve and operating data included or incorporated by reference in the
     Registration Statement and Final Prospectus, and have not examined the
     accounting, financial, reserve or operating records from which such
     financial statements, notes and data were derived.  Such counsel may note
     that, while certain portions of the Registration Statement and Final
     Prospectus (including financial statements, the notes thereto, and other
     financial and reserve data) have been included on the authority of
     "experts" (as defined in the Act), such counsel are not such experts with
     respect to any portion of the Registration Statement and Final Prospectus,
     including, without limitation, such financial statements, the notes
     thereto, or other financial or reserve and operating data included or
     incorporated by reference therein.  Subject to the foregoing, such counsel
     shall state that such counsel has participated in conferences with the
     officers and other representatives of the Company, representatives of the
     independent accountants for the Company, representatives of the experts
     referred to above, and the Purchaser and its counsel, at which the contents
     of the Registration Statement and Final Prospectus and related matters were
     discussed and, although such counsel is not passing upon, and does not
     assume any responsibility for, the accuracy, completeness or fairness of
     the statements contained in Registration Statement and the Final Prospectus
     and have not made any independent check or verification thereof, during the
     course of such participation (relying as to factual matters as to
     materiality to a large extent upon the statements of officers and other
     representatives of the Company), no facts came to such counsel's attention
     that caused such counsel to believe that on the Effective Date or at the
     Execution Time the Registration Statement contained any untrue statement of
     a material fact or omitted to state any material fact required to be stated
     therein or necessary to make the statements therein not misleading or that
     the Final Prospectus, as of its date and on the Closing Date contained or
     contains an untrue statement of a material fact or omitted or omits to
     state a material fact necessary to make the statements therein, in the
     light of the circumstances under which they are made, not misleading
     (except that such statements by such counsel shall not be deemed to include
     any statement with respect to any financial information or other financial
     or reserve or operating data).

          In rendering such opinion, such counsel may rely (A) as to matters
     involving the application of laws of any jurisdiction other than the States
     of Delaware or Colorado or the Federal laws of the United States, to the
     extent they deem proper and specified in such opinion, upon the opinion of
     other counsel of good standing whom they believe to be reliable and who are
     satisfactory to counsel for the Underwriters and (B) as to matters 

                                       14
<PAGE>
 
     of fact, to the extent they deem proper, on certificates of responsible
     officers of the Company and public officials. References to the Final
     Prospectus in this paragraph (b) include any supplements thereto at the
     Closing Date.

          (c)  The Company shall have furnished to the Purchaser the opinion of
     Gough, Shanahan, Johnson & Waterman, special regulatory counsel for the
     Company, dated the Closing Date, to the effect that:

               (i)  to the best knowledge of such counsel, except where the lack
          of possession would not have a material adverse effect on the
          financial condition of the Company, the Company has all necessary
          consents, approvals, authorizations, orders, registrations,
          qualifications, licenses and permits of and from all public,
          regulatory or governmental agencies and bodies to own, lease and
          operate its properties and conduct its business as now being conducted
          and as described in the Final Prospectus; and

               (ii)  the descriptions in the Final Prospectus of statutes and
          regulations described therein are accurate in all material respects
          and fairly present the information required to be shown.

          (d)  The Representatives shall have received from Winston & Strawn
     counsel for the Underwriters, such opinion or opinions, dated the Closing
     Date and addressed to the Representatives, with respect to the issuance and
     sale of the Securities, the Registration Statement, the Final Prospectus
     (together with any supplement thereto) and other related matters as the
     Representatives may reasonably require, and the Company shall have
     furnished to such counsel such documents as they request for the purpose of
     enabling them to pass upon such matters.

          (e)  The Company shall have furnished to the Representatives a
     certificate of the Company, signed by the Chairman of the Board or the
     President and the principal financial or accounting officer of the Company,
     dated the Closing Date, to the effect that the signers of such certificate
     have carefully examined the Registration Statement, the Final Prospectus,
     any supplements to the Final Prospectus and this Agreement and that:

               (i) the representations and warranties of the Company in this
          Agreement are true and correct on and as of the Closing Date with the
          same effect as if made on the Closing Date and the Company has
          complied with all the agreements and satisfied all the conditions on
          its part to be performed or satisfied at or prior to the Closing Date;

               (ii) no stop order suspending the effectiveness of the
          Registration Statement has been issued and no proceedings for that
          purpose have been instituted or, to the Company's knowledge,
          threatened; and

                                       15
<PAGE>
 
               (iii) since the date of the most recent financial statements
          included or incorporated by reference in the Final Prospectus
          (exclusive of any supplement thereto), there has been no material
          adverse effect on the condition (financial or otherwise), prospects,
          earnings, business or properties of the Company and its subsidiaries,
          taken as a whole, whether or not arising from transactions in the
          ordinary course of business, except as set forth in or contemplated in
          the Final Prospectus (exclusive of any supplement thereto).

          (f)  The Company shall have requested and caused Pricewaterhouse
     Coopers LLP to have furnished to the Representatives, at the Execution Time
     and at the Closing Date, letters (which may refer to letters previously
     delivered to one or more of the Representatives), dated respectively as of
     the Execution Time and as of the Closing Date, in form and substance
     satisfactory to the Representatives, confirming that they are independent
     accountants within the meaning of the Act and the Exchange Act and the
     respective applicable published rules and regulations thereunder and that
     they have performed a review of the unaudited interim financial information
     of the Company for the nine-month period ended September 30, 1998, and as
     at September 30, 1998, in accordance with Statement on Auditing Standards
     No. 71, and stating in effect, except as provided in Schedule I hereto,
     that:

               (i) in their opinion the audited financial statements and
          financial statement schedules included or incorporated by reference in
          the Registration Statement and the Final Prospectus and reported on by
          them comply as to form in all material respects with the applicable
          accounting requirements of the Act and the Exchange Act and the
          related published rules and regulations;

               (ii) on the basis of a reading of the latest unaudited financial
          statements made available by the Company and its subsidiaries; their
          limited review, in accordance with standards established under
          Statement on Auditing Standards No. 71, of the unaudited interim
          financial information for the nine-month period ended September 30,
          1998, and as at September 30, 1998 incorporated by reference in the
          Registration Statement and the Final Prospectus; carrying out certain
          specified procedures (but not an examination in accordance with
          generally accepted auditing standards) which would not necessarily
          reveal matters of significance with respect to the comments set forth
          in such letter; a reading of the minutes of the meetings of the
          stockholders, directors and audit, compensation and marketing
          committees of the Company; and inquiries of certain officials of the
          Company who have responsibility for financial and accounting matters
          of the Company and its subsidiaries as to transactions and events
          subsequent to December 31, 1997, nothing came to their attention which
          caused them to believe that:

                    (1) any unaudited financial statements included or
               incorporated by reference in the Registration Statement and the
               Final Prospectus do not comply as to form in all material
               respects with applicable accounting 

                                       16
<PAGE>
 
               requirements of the Act and with the published rules and
               regulations of the Commission with respect to financial
               statements included or incorporated by reference in quarterly
               reports on Form 10-Q under the Exchange Act; and said unaudited
               financial statements are not in conformity with generally
               accepted accounting principles applied on a basis substantially
               consistent with that of the audited financial statements included
               or incorporated by reference in the Registration Statement and
               the Final Prospectus;

                    (2) with respect to the period subsequent to September 30,
               1998, there were any changes, at a specified date not more than
               five days prior to the date of the letter, in the long-term debt
               of the Company and its subsidiaries or capital stock of the
               Company or decreases in the stockholders' equity of the Company
               as compared with the amounts shown on the September 30, 1998
               consolidated balance sheet included or incorporated by reference
               in the Registration Statement and the Final Prospectus, or for
               the period from October 1, 1998 to such specified date in the
               corresponding period in the preceding year there were any
               decreases, as compared with October 1, 1997, in net revenues or
               income before income taxes or in total or per share amounts of
               net income of the Company and its subsidiaries, except in all
               instances for changes or decreases set forth in such letter, in
               which case the letter shall be accompanied by an explanation by
               the Company as to the significance thereof unless said
               explanation is not deemed necessary by the Representatives; and

                    (3) the information included or incorporated by reference in
               the Registration Statement and Final Prospectus in response to
               Regulation S-K, Item 301 (Selected Financial Data), Item 302
               (Supplementary Financial Information), Item 402 (Executive
               Compensation) and Item 503(d) (Ratio of Earnings to Fixed
               Charges) is not in conformity with the applicable disclosure
               requirements of Regulation S-K

               (iii) they have performed certain other specified procedures as a
          result of which they determined that certain information of an
          accounting, financial or statistical nature (which is limited to
          accounting, financial or statistical information derived from the
          general accounting records of the Company and its subsidiaries) set
          forth in the Registration Statement and the Final Prospectus and in
          Exhibit 12 to the Registration Statement, including, but not limited
          to, the information set forth under the captions "Summary Operating
          and Financial Information" and "Selected Financial Information" in the
          Final Prospectus, the information included or incorporated by
          reference in Items 1, 2, 6, 7 and 11 of the Company's Annual Report on
          Form 10-K, incorporated by reference in the Registration Statement and
          the Final Prospectus, and the information included in the
          "Management's Discussion and Analysis of Financial Condition and
          Results 

                                       17
<PAGE>
 
          of Operations" included or incorporated by reference in the Company's
          Quarterly Reports on Form 10-Q, incorporated by reference in the
          Registration Statement and the Final Prospectus, agrees with the
          accounting records of the Company and its subsidiaries, excluding any
          questions of legal interpretation.

          References to Final Prospectus in this paragraph (f) include any
supplement thereto at the date of the letter.

          (g)  Subsequent to the Execution Time or, if earlier, the dates as of
     which information is given in the Registration Statement (exclusive of any
     amendment thereof) and the Final Prospectus (exclusive of any supplement
     thereto), there shall not have been (i) any change or decrease specified in
     the letter or letters referred to in paragraph (e) of this Section 6 or
     (ii) any change, or any development involving a prospective change, in or
     affecting the condition (financial or otherwise), earnings, business or
     properties of the Company and its subsidiaries, taken as a whole, whether
     or not arising from transactions in the ordinary course of business, except
     as set forth in or contemplated in the Final Prospectus (exclusive of any
     supplement thereto) the effect of which, in any case referred to in clause
     (i) or (ii) above, is, in the sole judgment of the Representatives, so
     material and adverse as to make it impractical or inadvisable to proceed
     with the offering or delivery of the Securities as contemplated by the
     Registration Statement (exclusive of any amendment thereof) and the Final
     Prospectus (exclusive of any supplement thereto).

          (h)  Prior to the Closing Date, the Company shall have furnished to
     the Representatives such further information, certificates and documents as
     the Representatives may reasonably request.

          (i)  The Securities shall have been listed and admitted and authorized
     for trading on the American Stock Exchange, and satisfactory evidence of
     such actions shall have been provided to the Representatives.

          (j)  At the Execution Time, the Company shall have furnished to the
     Representatives a letter substantially in the form of Exhibit A hereto from
     each executive officer and director of the Company addressed to the
     Representatives.

If any of the conditions specified in this Section 6 shall not have been
fulfilled in all material respects when and as provided in this Agreement, or if
any of the opinions and certificates mentioned above or elsewhere in this
Agreement shall not be in all material respects reasonably satisfactory in form
and substance to the Representatives and counsel for the Underwriters, this
Agreement and all obligations of the Underwriters hereunder may be canceled at,
or at any time prior to, the Closing Date by the Representatives.  Notice of
such cancellation shall be given to the Company in writing or by telephone or
facsimile confirmed in writing.

The documents required to be delivered by this Section 6 shall be delivered at
the office of Davis, Graham & Stubbs LLP, counsel for the Company, at 370
Seventeenth Street, Suite 4700, Denver, Colorado, 80206 on the Closing Date.

                                       18
<PAGE>
 
          7.  Reimbursement of Underwriters' Expenses.  If the sale of the
              ----------------------------------------                    
Securities provided for herein is not consummated because any condition to the
obligations of the Underwriters set forth in Section 6 hereof is not satisfied,
because of any termination pursuant to Section 10 hereof or because of any
refusal, inability or failure on the part of the Company to perform any
agreement herein or comply with any provision hereof other than by reason of a
default by any of the Underwriters, the Company will reimburse the Underwriters
severally through Salomon Smith Barney Inc. on demand for all out-of-pocket
expenses (including reasonable fees and disbursements of counsel) that shall
have been incurred by them in connection with the proposed purchase and sale of
the Securities.

          8.  Indemnification and Contribution.  (a)  The Company agrees to
              ---------------------------------                            
     indemnify and hold harmless each Underwriter, the directors, officers,
     employees and agents of each Underwriter and each person who controls any
     Underwriter within the meaning of either the Act or the Exchange Act
     against any and all losses, claims, damages or liabilities, joint or
     several, to which they or any of them may become subject under the Act, the
     Exchange Act or other Federal or state statutory law or regulation, at
     common law or otherwise, insofar as such losses, claims, damages or
     liabilities (or actions in respect thereof) arise out of or are based upon
     any untrue statement or alleged untrue statement of a material fact
     contained in the registration statement for the registration of the
     Securities as originally filed or in any amendment thereof, or in the Basic
     Prospectus, any Preliminary Final Prospectus or the Final Prospectus, or in
     any amendment thereof or supplement thereto, or arise out of or are based
     upon the omission or alleged omission to state therein, a material fact
     required to be stated therein or necessary to make the statements therein
     in light of the circumstances under which they were made, not misleading,
     and agrees to reimburse each such indemnified party, as incurred, for any
     legal or other expenses reasonably incurred by them in connection with
     investigating or defending any such loss, claim, damage, liability or
     action; provided, however, that the Company will not be liable in any such
             --------  -------                                                 
     case to the extent that any such loss, claim, damage or liability arises
     out of or is based upon any such untrue statement or alleged untrue
     statement or omission or alleged omission made therein in reliance upon and
     in conformity with written information furnished to the Company by or on
     behalf of any Underwriter through the Representatives specifically for
     inclusion therein; provided, further, that the foregoing indemnity with
                        --------  -------                                   
     respect to any untrue statement contained in or omission from the Basic
     Prospectus or Preliminary Final Prospectus shall not inure to the benefit
     of any Underwriter (or any of the directors, officers, employees and agents
     of such Underwriter or any person controlling such Underwriter) from whom
     the person asserting any such loss, claim, damage or liability purchased
     the Securities which are the subject thereof if such person did not receive
     a copy of the Final Prospectus (or the Final Prospectus as then amended or
     supplemented if the Company shall have furnished any amendments or
     supplements thereto) at or prior to the confirmation of the sale of such
     Securities to such person in any case where such delivery is required by
     the Act and the untrue statement or omission of a material fact contained
     in such Basic Prospectus or Preliminary Final Prospectus was corrected in
     the Final Prospectus (or the Final Prospectus as so amended or supplemented
     if the Company shall have furnished any amendments or supplements thereto),
     and it is finally judicially determined that such 

                                       19
<PAGE>
 
     delivery was required to be made under the Act and was not so made. This
     indemnity agreement will be in addition to any liability which the Company
     may otherwise have.

          (b)  Each Underwriter severally and not jointly agrees to indemnify
     and hold harmless the Company, each of its directors, each of its officers
     who signs the Registration Statement, each person who controls the Company
     within the meaning of either the Act or the Exchange Act, and each other
     officer, employee and agent of the Company, to the same extent as the
     foregoing indemnity from the Company to each Underwriter, but only with
     reference to written information relating to such Underwriter furnished to
     the Company by or on behalf of such Underwriter through the Representatives
     specifically for inclusion in the documents referred to in the foregoing
     indemnity.  This indemnity agreement will be in addition to any liability
     which any Underwriter may otherwise have.  The Company acknowledges that
     the language on page S-33 related to stabilization, syndicate covering
     transactions and penalty bids and the information under the heading
     "Underwriting", constitute the only information furnished in writing by or
     on behalf of the several Underwriters for inclusion in any Preliminary
     Final Prospectus or the Final Prospectus.

          (c)  Promptly after receipt by an indemnified party under this Section
     8 of notice of the commencement of any action, such indemnified party will,
     if a claim in respect thereof is to be made against the indemnifying party
     under this Section 8, notify the indemnifying party in writing of the
     commencement thereof; but the failure so to notify the indemnifying party
     (i) will not relieve it from liability under paragraph (a) or (b) above
     unless and to the extent it did not otherwise learn of such action and such
     failure results in the forfeiture by the indemnifying party of substantial
     rights and defenses and (ii) will not, in any event, relieve the
     indemnifying party from any obligations to any indemnified party other than
     the indemnification obligation provided in paragraph (a) or (b) above.  The
     indemnifying party shall be entitled to appoint counsel of the indemnifying
     party's choice at the indemnifying party's expense to represent the
     indemnified party in any action for which indemnification is sought (in
     which case the indemnifying party shall not thereafter be responsible for
     the fees and expenses of any separate counsel retained by the indemnified
     party or parties except as set forth below); provided,  however, that such
                                                  --------  --------           
     counsel shall be reasonably satisfactory to the indemnified party.
     Notwithstanding the indemnifying party's election to appoint counsel to
     represent the indemnified party in an action, the indemnified party shall
     have the right to employ separate counsel (including local counsel), and
     the indemnifying party shall bear the reasonable fees, costs and expenses
     of such separate counsel (it being understood, however, that the
     indemnifying party shall not be liable for the expenses of more than one
     firm to act as separate counsel (plus one local counsel in each applicable
     jurisdiction) in connection with any proceeding or related proceedings in
     the same jurisdiction) if (i) the use of counsel chosen by the indemnifying
     party to represent the indemnified party would present such counsel with a
     conflict of interest, (ii) the actual or potential defendants in, or
     targets of, any such action include both the indemnified party and the
     indemnifying party and the indemnified party shall have reasonably
     concluded that there may be legal defenses available to it and/or other
     indemnified parties which are different from or 

                                       20
<PAGE>
 
     additional to those available to the indemnifying party, (iii) the
     indemnifying party shall not have employed counsel reasonably satisfactory
     to the indemnified party to represent the indemnified party within a
     reasonable time after notice of the institution of such action or (iv) the
     indemnifying party shall authorize in writing the indemnified party to
     employ separate counsel at the expense of the indemnifying party. An
     indemnifying party will not, without the prior written consent of the
     indemnified parties, settle or compromise or consent to the entry of any
     judgment with respect to any pending or threatened claim, action, suit or
     proceeding in respect of which indemnification or contribution may be
     sought hereunder (whether or not the indemnified parties are actual or
     potential parties to such claim or action) unless such settlement,
     compromise or consent includes an unconditional release of each indemnified
     party from all liability arising out of such claim, action, suit or
     proceeding.

          (d)  In the event that the indemnity provided in paragraph (a) or (b)
     of this Section 8 is unavailable to or insufficient to hold harmless an
     indemnified party for any reason, the Company and the Underwriters
     severally agree to contribute to the aggregate losses, claims, damages and
     liabilities (including legal or other expenses reasonably incurred in
     connection with investigating or defending same) (collectively "Losses") to
     which the Company and one or more of the Underwriters may be subject in
     such proportion as is appropriate to reflect the relative benefits received
     by the Company on the one hand and by the Underwriters on the other from
     the offering of the Securities; provided, however, that in no case shall
                                     --------  -------                       
     any Underwriter (except as may be provided in any agreement among
     underwriters relating to the offering of the Securities) be responsible for
     any amount in excess of the underwriting discount or commission applicable
     to the Securities purchased by such Underwriter hereunder.  If the
     allocation provided by the immediately preceding sentence is unavailable
     for any reason, the Company and the Underwriters severally shall contribute
     in such proportion as is appropriate to reflect not only such relative
     benefits but also the relative fault of the Company on the one hand and of
     the Underwriters on the other in connection with the statements or
     omissions which resulted in such Losses as well as any other relevant
     equitable considerations.  Benefits received by the Company shall be deemed
     to be equal to the total net proceeds from the offering (before deducting
     expenses) received by it, and benefits received by the Underwriters shall
     be deemed to be equal to the total underwriting discounts and commissions,
     in each case as set forth on the cover page of the Final Prospectus.
     Relative fault shall be determined by reference to, among other things,
     whether any untrue or any alleged untrue statement  of a material fact or
     the omission or alleged omission to state a material fact relates to
     information provided by the Company on the one hand or the Underwriters on
     the other, the intent of the parties and their relative knowledge, access
     to information and opportunity to correct or prevent such untrue statement
     or omission.  The Company and the Underwriters agree that it would not be
     just and equitable if contribution were determined by pro rata allocation
     or any other method of allocation which does not take account of the
     equitable considerations referred to above.  Notwithstanding the provisions
     of this paragraph (d), no person guilty of fraudulent misrepresentation
     (within the meaning of Section 11(f) of the Act) shall be entitled to
     contribution from any person who was not guilty of such 

                                       21
<PAGE>
 
     fraudulent misrepresentation. For purposes of this Section 8, each person
     who controls an Underwriter within the meaning of either the Act or the
     Exchange Act and each director, officer, employee and agent of an
     Underwriter shall have the same rights to contribution as such Underwriter,
     and each person who controls the Company within the meaning of either the
     Act or the Exchange Act, each officer of the Company who shall have signed
     the Registration Statement, each director of the Company and each other
     officer, employee or agent of the Company shall have the same rights to
     contribution as the Company, subject in each case to the applicable terms
     and conditions of this paragraph (d).

          9.  Default by an Underwriter.  If any one or more Underwriters shall
              --------------------------                                       
fail to purchase and pay for any of the Securities agreed to be purchased by
such Underwriter or Underwriters hereunder and such failure to purchase shall
constitute a default in the performance of its or their obligations under this
Agreement, the remaining Underwriters shall be obligated severally to take up
and pay for (in the respective proportions which the amount of Securities set
forth opposite their names in Schedule II hereto bears to the aggregate amount
of Securities set forth opposite the names of all the remaining Underwriters)
the Securities which the defaulting Underwriter or Underwriters agreed but
failed to purchase; provided, however, that in the event that the aggregate
                    --------  -------                                      
amount of Securities which the defaulting Underwriter or Underwriters agreed but
failed to purchase shall exceed 10% of the aggregate amount of Securities set
forth in Schedule II hereto, the remaining Underwriters shall have the right to
purchase all, but shall not be under any obligation to purchase any, of the
Securities, and if such nondefaulting Underwriters do not purchase all the
Securities, this Agreement will terminate without liability to any nondefaulting
Underwriter or the Company.  In the event of a default by any Underwriter as set
forth in this Section 9, the Closing Date shall be postponed for such period,
not exceeding five Business Days, as the Representatives shall determine in
order that the required changes in the Registration Statement and the Final
Prospectus or in any other documents or arrangements may be effected.  Nothing
contained in this Agreement shall relieve any defaulting Underwriter of its
liability, if any, to the Company and any nondefaulting Underwriter for damages
occasioned by its default hereunder.

          10.  Termination.  This Agreement shall be subject to termination in
               ------------                                                   
the absolute discretion of the Representatives, by notice given to the Company
prior to delivery of and payment for the Securities, if at any time prior to
such time (i) trading in the Company's Common Stock shall have been suspended by
the Commission or the American Stock Exchange or trading in securities generally
on the New York Stock Exchange or the American Stock Exchange shall have been
suspended or limited or minimum prices shall have been established on either of
such Exchanges, (ii) a banking moratorium shall have been declared either by
Federal or New York State authorities or (iii) there shall have occurred any
outbreak or escalation of hostilities, declaration by the United States of a
national emergency or war, or other calamity or crisis the effect of which on
financial markets is such as to make it, in the sole judgment of the
Representatives, impractical or inadvisable to proceed with the offering or
delivery of the Securities as contemplated by the Final Prospectus (exclusive of
any supplement thereto).

                                       22
<PAGE>
 
          11.  Representations and Indemnities to Survive. The respective
               -------------------------------------------               
agreements, representations, warranties, indemnities and other statements of the
Company or its officers and of the Underwriters set forth in or made pursuant to
this Agreement will remain in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter or the Company or any of
the officers, directors or controlling persons referred to in Section 8 hereof,
and will survive delivery of and payment for the Securities.  The provisions of
Sections 7 and 8 hereof shall survive the termination or cancellation of this
Agreement.

          12.  Notices.  All communications hereunder will be in writing and
               --------                                                     
effective only on receipt, and, if sent to the Representatives, will be mailed,
delivered or telefaxed to the Salomon Smith Barney Inc. General Counsel (fax
no.: (212) 816-7912) and confirmed to the General Counsel, Salomon Smith Barney
Inc., at 388 Greenwich Street, New York, New York, 10013, Attention: General
Counsel; or, if sent to the Company, will be mailed, delivered or telefaxed to
James A. Sabala (fax no.: (303) 352-2095 and confirmed at Davis, Graham &
Stubbs, 370 Seventeenth Street, Suite 4700, Denver, Colorado 80206, attention
Paul Hilton.

          13.  Successors.  This Agreement will inure to the benefit of and be
               -----------                                                    
binding upon the parties hereto and their respective successors and the officers
and directors and controlling persons referred to in Section 8 hereof, and no
other person will have any right or obligation hereunder.

          14.  Applicable Law.  This Agreement will be governed by and construed
               ---------------                                                  
in accordance with the laws of the State of New York applicable to contracts
made and to be performed within the State of New York.

          15.  Counterparts.  This Agreement may be signed in one or more
               ------------                                              
counterparts, each of which shall constitute an original and all of which
together shall constitute one and the same agreement.

          16.  Headings.  The section headings used herein are for convenience
               --------                                                       
only and shall not affect the construction hereof.

          17.  Definitions.  The terms which follow, when used in this
               ------------                                           
Agreement, shall have the meanings indicated.

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

     "Basic Prospectus" shall mean the prospectus referred to in paragraph 1(a)
above contained in the Registration Statement at the Effective Date.

     "Business Day" shall mean any day other than a Saturday, a Sunday or a
legal holiday or a day on which banking institutions or trust companies are
authorized or obligated by law to close in New York City.

                                       23
<PAGE>
 
     "Commission" shall mean the Securities and Exchange Commission.

     "Effective Date" shall mean each date and time that the Registration
Statement, any post-effective amendment or amendments thereto and any Rule
462(b) Registration Statement became or become effective.

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

     "Execution Time" shall mean the date and time that this Agreement is
executed and delivered by the parties hereto.

     "Final Prospectus" shall mean the prospectus supplement relating to the
Securities that was first filed pursuant to Rule 424(b) after the Execution
Time, together with the Basic Prospectus.

     "Preliminary Final Prospectus" shall mean any preliminary prospectus
supplement to the Basic Prospectus which describes the Securities and the
offering thereof and is used prior to filing of the Final Prospectus, together
with the Basic Prospectus.

     "Registration Statement" shall mean the registration statement referred to
in paragraph 1(a) above, including exhibits and financial statements, as amended
at the Execution Time (or, if not effective at the Execution Time, in the form
in which it shall become effective) and, in the event any post-effective
amendment thereto or any Rule 462(b) Registration Statement becomes effective
prior to the Closing Date, shall also mean such registration statement as so
amended or such Rule 462(b) Registration Statement, as the case may be.  Such
term shall include any Rule 430A Information deemed to be included therein at
the Effective Date as provided by Rule 430A.

     "Rule 415", "Rule 424", "Rule 430A" and "Rule 462" refer to such rules
under the Act.

     "Rule 430A Information" shall mean information with respect to the
Securities and the offering thereof permitted to be omitted from the
Registration Statement when it becomes effective pursuant to Rule 430A.

     "Rule 462(b) Registration Statement" shall mean a registration statement
and any amendments thereto filed pursuant to Rule 462(b) relating to the
offering covered by the registration statement referred to in Section 1(a)
hereof.

                                       24
<PAGE>
 
     If the foregoing is in accordance with your understanding of our agreement,
please sign and return to us the enclosed duplicate hereof, whereupon this
letter and your acceptance shall represent a binding agreement among the Company
and the several Underwriters.

                                   Very truly yours,

                                   Stillwater Mining Company

                                   By: __________________________
                                       Name: ____________________
                                       Title: ___________________

The foregoing Agreement is
hereby confirmed and accepted
as of the date specified in
Schedule I hereto.

Salomon Smith Barney Inc.
Merrill Lynch, Pierce, Fenner & Smith Incorporated
TD Securities (USA) Inc.

By:  Salomon Smith Barney Inc.

By: ____________________
   Name: _______________
   Title: ______________

For itself and the other
several Underwriters, if any,
named in Schedule II to the
foregoing Agreement.
<PAGE>
 
                                  SCHEDULE I

Underwriting Agreement dated:  October ___, 1998

Registration Statement No.: 333-58251

Representatives:    Salomon Smith Barney Inc.
                    Merrill Lynch, Pierce, Fenner & Smith Incorporated
                    TD Securities (USA) Inc.

Title, Purchase Price and Description of Securities:

     Title: Common Stock, par value $.01

     Number of Shares to be sold by the Company: 2,000,000

     Price to Public per Share:  $ ____

     Price to Public -- total:  $ ______

     Underwriting Discount per Share:  $ _____

     Underwriting Discount -- total:   $ ______

     Proceeds to Company per Share:   $ ______

     Proceeds to Company -- total: $___,000,000

     Other provisions: option to purchase an additional 300,000 shares ("Option
     Shares")

Closing Date, Time and Location:  October ___, 1998 at 10:00 a.m. (Eastern
Standard Time), 
                            Davis, Graham & Stubbs
                            370 Seventeenth Street,
                            Suite 4700
                            Denver, Colorado 80206

Type of Offering: Non-Delayed

Date referred to in Section 5(f) after which the Company may offer or sell
securities issued or guaranteed by the Company without the consent of the
Representatives: [90 days after the Execution Time]

Modification of items to be covered by the letter from Pricewaterhouse Coopers
LLP delivered pursuant to Section 6(e) at the Execution Time:
<PAGE>
 
                                  SCHEDULE II
                                  -----------

<TABLE>
<CAPTION>
                                 NUMBER OF          MAXIMUM           MAXIMUM TOTAL
                               UNDERWRITTEN     NUMBER OF OPTION        NUMBER OF
                              SECURITIES TO BE     SECURITIES          SECURITIES
       UNDERWRITERS             PURCHASED       AVAILABLE TO BE       AVAILABLE TO BE
                                                   PURCHASED            PURCHASED
- -----------------------------------------------------------------------------------
<S>                             <C>                <C>                <C>
Salomon Smith Barney Inc.
- -----------------------------------------------------------------------------------
Merrill Lynch, Pierce,
 Fenner & Smith
 Incorporated
- -----------------------------------------------------------------------------------
TD Securities (USA) Inc.
- -----------------------------------------------------------------------------------
 
- -----------------------------------------------------------------------------------
 
- -----------------------------------------------------------------------------------
 
- -----------------------------------------------------------------------------------
TOTAL                                2,000,000            300,000         2,300,000
- -----------------------------------------------------------------------------------
</TABLE>



 
<PAGE>
 
                                   EXHIBIT A

                   [Letterhead of Stillwater Mining Company]



                           Stillwater Mining Company
                        Public Offering of Common Stock


                                                            October ___, 1998
Salomon Smith Barney Inc.
Merril Lynch, Pierce, Fenner  & Smith Incorporated
TD Securities (USA) Inc.
As Representatives of the several Underwriters,
c/o Salomon Smith Barney Inc.
388 Greenwich Street
New York, New York 10013

Ladies and Gentlemen:

     This letter is being delivered to you in connection with the proposed
Underwriting Agreement (the "Underwriting Agreement"), between Stillwater Mining
Company, a Delaware corporation (the "Company"), and each of you as
representatives of a group of Underwriters named therein, relating to an
underwritten public offering of Common Stock, $.01 par value (the "Common
Stock"), of the Company.

     In order to induce you and the other Underwriters to enter into the
Underwriting Agreement, the undersigned will not, without the prior written
consent of Salomon Smith Barney Inc., offer, sell, contract to sell, pledge or
otherwise dispose of, or file (or participate in the filing of) a registration
statement with the Securities and Exchange Commission in respect of, or
establish or increase a put equivalent position or liquidate or decrease a call
equivalent position within the meaning of Section 16 of the Securities Exchange
Act of 1934, as amended, and the rules and regulations of the Securities and
Exchange Commission promulgated thereunder with respect to, any shares of
capital stock of the Company or any securities convertible into or exercisable
or exchangeable for such capital stock, or publicly announce an intention to
effect any such transaction, for a period of 90 days after the date of the
Underwriting Agreement, other than shares of Common Stock disposed of as bona
fide gifts approved by Salomon Smith Barney Inc.
<PAGE>
 
     If for any reason the Underwriting Agreement shall be terminated prior to
the Closing Date (as defined in the Underwriting Agreement), the agreement set
forth above shall likewise be terminated.

                                         Yours very truly,



                                         Print Name: ____________________
                                         Title: _________________________




<PAGE>
 
                                                                    EXHIBIT 23.2

                 [LETTERHEAD OF BEHRE DOLBEAR & COMPANY, INC.]

                               October 19, 1998

Stillwater Mining Company
1200 Seventeenth Street
Suite 900
Denver, CO 80202

Ladies and Gentlemen:

We hereby authorize the reference to Behre Dolbear & Company ("Behre Dolbear") 
and the Mineral Inventory of Stillwater Mining Company as of January 1, 1998 
prepared by Behre Dolbear, in the Prospectus Supplement to the Prospectus 
contained in the Registration Statement on Form S-3 of Stillwater Mining 
Company, to be filed with the United States Securities and Exchange Commission. 
We also consent to the reference to us under the heading "Experts" in such 
Prospectus Supplement.

We also confirm that we have read the description of the Stillwater Mining 
Company ore reserves as contained in the Prospectus Supplement and have no 
reason to believe that there is any misrepresentation in the information 
contained therein that is derived from  our report or known to us as a result of
services we performed in connection with the preparation of such report.

Sincerely,

BEHRE DOLBEAR & COMPANY, INC.

/s/ Bernard J. Guamera

Bernard J. Guamera
President, Chief Executive Officer and
Chief Operating Officer


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