Document:

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                                                                   EXHIBIT 10.54

                             SPACELABS MEDICAL, INC.
                             15220 N.E. 40TH STREET
                            REDMOND, WASHINGTON 98073

                                 January 2, 2002

Eugene V. DeFelice, Esquire
Vice President, General Counsel and Secretary
Spacelabs Medical, Inc.
15220 N.E. 40th Street
Redmond, Washington  98073

Dear Gene:

        This letter will confirm the agreements that have been reached between
you and Spacelabs Medical, Inc. ("Company") in light of our discussions
regarding your continued service with the Company and the rights and obligations
of you and the Company with respect thereto.

        As we have discussed, the Company wishes to retain your services for a
defined period while the Company evaluates strategic options. We therefore have
agreed that, if you continue to perform in your current capacities until the
earlier of March 31, 2002 and the date that the Company terminates your
employment without Cause (as defined in the severance agreement between you and
the Company dated March 16, 2001 ("Severance Agreement")), termination of your
employment on such date will be deemed a termination of your employment by the
Company without Cause under the Severance Agreement, with the result that you
will be entitled to the lump sum payments and other benefits provided for
thereunder upon satisfaction of the conditions set forth therein (unless Section
2 of the Severance Agreement applies, in which case the Amended and Restated
Change of Control Agreement between you and the Company dated as of July 24,
1998 ("Change of Control Agreement") will control). Except as modified by this
agreement, the Severance Agreement as modified by this agreement and the Change
of Control Agreement remain in full force and effect.

        Your employment pursuant to this agreement continues to be "at-will" and
may be terminated by either the Company or you at any time with or without
Cause, subject to your rights under this agreement, the Severance Agreement as
modified by this agreement and the Change of Control Agreement.

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Eugene V. DeFelice, Esquire

________ __, 2001
Page 2

        If the foregoing accurately reflects our agreement, please countersign a
copy of this agreement and return it to me, whereupon this will be a legally
binding agreement between you and the Company entered into in consideration of
the premises and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged.

                                       Sincerely,

                                       SPACELABS MEDICAL, INC.

                                       By
                                          --------------------------------------
                                              Carl A. Lombardi
                                              Chairman of the Board,
                                              President and Chief
                                       Executive Officer, acting pursuant to a
                                         resolution of the Board of Directors

AGREED AND ACCEPTED:

-------------------------
Eugene V. DeFeliceExhibit 10.a

Unincorporated Association Contract entered into by and between Minera Santa
Rita S. de R.L. de C.V. ("Santa Rita"), represented by Jack Veeder Everett and
Roger Austin Newell, of the one part, as active member, and Grupo Minero FG S.A.
de C.V. ("FG"), represented by Samuel Fraijo Flores, of the other part, pursuant
to the below recitals and clauses:

RECITALS

I. Santa Rita's:

(A) Santa Rita is a Mexican business corporation created by notarial instrument
number 2,219 (two thousand two hundred nineteen), volume 67 (sixty-seven),
attested before Maria Luisa Lizarraga Garcia, Notary Public number 35
(thirty-five), commissioned in Hermosillo, Sonora, on May the 7th (seventh),
registered under number 20,287 (twenty thousand two hundred eighty-seven),
volume 595 (five hundred ninety-five), book 1 (one), commerce section, May the
14th (fourteenth), 2001 (two thousand one).

(B) Among other things, its corporate purpose allows it to explore and exploit
mining properties and process and sell ore.

(C) Minera Chanate S.A. de C.V.  ("Chanate"),  an affiliate of Santa Rita is the
owner of the following mining concessions ("the Mining Concessions"):

     (1) Mining exploitation concession on the lot "San Jose", located in the
     Municipality of Altar, Sonora, title 200,718 (two hundred thousand seven
     hundred eighteen).

     (2) Mining exploitation concession on the lot "Las Dos Virgen", located in
     the Municipality of Altar, Sonora, title 214,874 (two hundred thousand
     fourteen eight hundred seventy-four).

     (3) Mining exploitation concession on the lot "Rono I", located in the
     Municipality of Altar, Sonora, title 206,408 (two hundred thousand six four
     hundred eight).

     (4) Mining exploitation concession on the lot "Rono 3", located in the
     Municipality of Altar, Sonora, title 214,224 (two hundred thousand fourteen
     two hundred twenty-four).

     (5) Mining exploitation concession on the lot "La Cuchilla", located in the
     Municipality of Altar, Sonora, title 214,224 (two hundred thousand fourteen
     two hundred twenty-four).

     (6) Mining exploitation concession on the lot "Elsa", located in the
     Municipality of Altar, Sonora, title 212,004 (two hundred thousand twelve
     four).

     (7) Mining exploitation concession on the lot "Elisa", located in the
     Municipality of Altar, Sonora, title 214,223 (two hundred thousand fourteen
     two hundred twenty-three).

     (8) Mining exploration concession on the lot "Ena", located in the
     Municipality of Altar, Sonora, title 199,045 (one hundred thousand
     ninety-nine forty-five).

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     (9) Mining exploitation concession on the lot "Eva", located in the
     Municipality of Altar, Sonora, title 212,395 (two hundred thousand twelve
     three hundred ninety-five).

     (10) Mining exploitation concession on the lot "Mirsa", located in the
     Municipality of Altar, Sonora, title 212,082 (two hundred thousand twelve
     eighty-two).

     (11) Mining exploitation concession on the lot "Olga", located in the
     Municipality of Altar, Sonora, title 212,081 (two hundred thousand twelve
     eighty-one).

     (12) Mining exploitation concession on the lot "Edna", located in the
     Municipality of Altar, Sonora, title 212,355 (two hundred thousand twelve
     three hundred fifty-five).

(D) Except for the Stock Purchase Option Agreement mentioned in Section (D) of
clause 10 (ten) of this contract, the lots covered by the Mining Concessions
("the Lots") and the Mining Concessions are free and clear of encumbrances,
lawsuits, and ownership limitations, and Santa Rita is up to date in the
discharging of obligations imposed to it by the Mining Law and the Federal Fees
Act in regard to the Mining Concessions and in regard to the Lots.

(E) It has agreed with Chanate the entering into of a contract or agreement by
which Chanate, or the assignee of the Mining Concessions, will allow Santa Rita
to explore and exploit the Lots ("the Mining Rights").

(F) It has agreed with FG to combine its efforts and resources, including the
Mining Rights, with FG's efforts and resources to continue the exploration and
evaluation of the mining potential of the Lots and, if warranted, to extract,
process, and sell the ore coming from the same (all of those activities
hereinafter called "the Development of the Project" or simply "the Project") as
provided herein.

(G) It provided FG with truthful, sufficient, and timely judgment elements so as
to allow FG to make an informed and reasoned decision to participate in the
Development of the Project and, consequently, in the making of this contract.
Notwithstanding the foregoing, Santa Rita has not given and does not give FG any
assurance in regard to the viability of the mining business that they will
undertake by means of this contract, and Santa Rita likewise has not given and
does not give FG any veracity, sufficiency, and opportunity guaranty of the
above judgment elements or any guaranty the said judgment elements will
necessarily translate themselves in a profitable investment for FG, so Santa
Rita shall in no way be responsible if the mining business finally turns out to
be non-viable or non-profitable.

(II) FG's:

(A) FG is a Mexican business corporation originally created as Exploraciones
Eldorado S.A. de C.V. by notarial instrument number 32,380 (thirty-two thousand
three hundred eighty), attested before Roberto Nunez y Bandera, Notary Public
number 1 (one), commissioned in Mexico City, on May the 6th (sixth) 1992
(nineteen hundred ninety-two), registered at the mercantile folio 163,819 (one
hundred sixty-three thousand eight hundred nineteen), at the Commerce Public
Registry of said city, on September the 10th (tenth), 1992 (nineteen hundred
ninety-two), and under number 169 (one hundred sixty-nine), in pages 145 (one
hundred forty-five) obverse and reverse of the General Book of Corporations of
the Mining Public Registry, on September the 23rd (twenty-third), 1992 (nineteen
hundred ninety-two), under number 145 (one hundred forty-five), in pages 103
(one hundred three) reverse to 104 (one hundred four) reverse, volume VIII
(eight), of the General Book of Partners and Shareholders of Mining Companies,
on the same September the 23rd (twenty-third), 1992 (nineteen hundred
ninety-two). The above notarial instrument number 32,380 (thirty-two thousand
three hundred eighty) was also registered under

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number 9,837 (nine thousand eight hundred thirty-seven), commerce section,
volume 20 L 1 (twenty letter "L" one), at the Property and Commerce Public
Registry of Hermosillo, Sonora, on July the 11th (eleventh), 1994 (nineteen
hundred ninety-four), due to a change of corporate address of the company from
Mexico City to Hermosillo, Sonora.

(B) Among other things, its corporate purpose allows it to explore and exploit
mining properties and process and sell ore.

(C) FG owns and has a full and undisturbed possession of the machinery and
equipment designed for the exploration, mining, and processing of minerals ("the
Equipment") described in the Exhibit "1" (one) hereto.

(D) All of the items comprised in the definition of "the Equipment" are free and
clear of encumbrances, litigations, and ownership limitations.

(E) It has agreed with Santa Rita to combine its efforts and resources with
those of Santa Rita, including the Mining Rights, for Santa Rita to carry out
the Development of the Project as provided herein.

(F) FG agrees with Santa Rita's representations in Section (G) of Recital I
(one) of this contract. FG, furthermore, provided Santa Rita with truthful,
sufficient, and timely judgment elements so as to allow Santa Rita to make an
informed and reasoned decision to participate in the Development of the Project
and, consequently, in the making of this contract.

(G) Additionally, its experience and knowledge in regard to the exploration and
evaluation of mining properties and in the mining, processing, and marketing of
minerals likewise allowed it to make and informed and reasoned decision to
participate in the Development of the Project and, consequently, in the making
of this contract.

(III) Santa Rita's and FG's:

They mutually acknowledge their existence and the appointments and authority of
those who execute this contract on their respective behalf, as their legal
counsel reviewed the documents that prove them.

(IV) FG and Santa Rita's representatives:

FG and Santa Rita's representatives represent under oath that their respective
appointments and powers and authority have not been rescinded or restricted;
that they have all the requisite authorizations to enter into this contract
pursuant to the bylaws of their respective principals; and that they, by
entering into this contract, do not infringe those bylaws or any resolution of
their respective shareholders or any agreement or contract respectively entered
into by their principals with third parties or any law or regulation or any
other kind of legal provision.

In light of their representations and their respective interests, the parties
enter into this Unincorporated Association Contract, binding themselves as
indicated in the following

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CLAUSES

1. DIRECT OBJECT.

Santa Rita and FG enter into this contract to set and regulate the terms,
interest proportions, and other conditions relating to the Development of the
Project, that Santa Rita will carry out with its resources and assets, including
the Mining Rights that Santa Rita will acquire from Chanate or from its
assignee, and with the contributions to be made to it by FG to the same end.

The expression "the Participants" used herein shall include FG, Santa Rita, and
whoever hereafter acquires an interest in the Project in conformity with the
same.

The expressions "the Development of the Project" or "the Project" as used in
this contract shall mean the mining project known as "El Chanate," made up of
the Lots, all of them located in the Municipality of Altar, Sonora. A drawing
that shows the location of the Lots is attached as Exhibit "2" hereto.

2. CONSIDERATION FOR THE RIGHT TO PARTICIPATE IN THE DEVELOPMENT OF THE PROJECT.

(A) In consideration for the right that Santa Rita confers on FG to participate
in the Development of the Project, upon execution of this contract FG pays to
Santa Rita the amount of US$75,000 (seventy-five thousand dollars of the United
States of America) ("the Consideration to Participate"), plus US$11,250 (eleven
thousand two hundred fifty dollars of the United States of America) as value
added tax, by certified check number 1,837 (one thousand eight hundred
thirty-seven), dated February the 21st (twenty-first), issued by BBVA Bancomer.
By this means Santa Rita grants FG full and releasing payment receipt in regard
to the Consideration to Participate.

(B) The payment of the Consideration to Participate and the making of the other
contributions to be made by FG to Santa Rita pursuant to this contract shall not
give FG any right to the shares issued by Santa Rita or by any of the
shareholders, affiliates, or subsidiaries of Santa Rita, and they shall not give
FG any right on the Mining Concessions or on any other of Santa Rita's assets or
on any of the mining concessions or other assets owned by any of the
shareholders, affiliates, or subsidiaries of Santa Rita.

For all purposes of this contract, a "shareholder" of a Participant means any
individual or entity who owns shares of the Participant in question, in any
proportion; "affiliate" of a Participant means any entity controlled or whose
shares are owned in at least a 51% (fifty-one) percent by the shareholder that
controls or who owns at least a 51% (fifty-one) percent of the shares of the
Participant in question; and "subsidiary" of a Participant means any entity
controlled or whose shares in at least a 51% (fifty-one percent) are owned by
the Participant in question.

(C) The Consideration to Participate shall not be considered a contribution to
the Development of the Project and, therefore, it shall not be reimbursable as
provided in section (J) of clause 7 (seven) of this contract or in any other
manner whatsoever or by any reason whatsoever.

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(D) The Consideration to Participate shall not give any right or privilege to FG
on the Mining Concessions or on the Lots or on the rest of Santa Rita's assets
or on the shares issued by Santa Rita, and the Consideration to Participate
shall likewise not give FG any privilege or right to FG on the assets of the
shareholders, subsidiaries, or affiliates of Santa Rita or on the shares issued
by said shareholders, subsidiaries, or affiliates.

3. PHASES IN THE DEVELOPMENT OF THE PROJECT.

(A) The first phase of the Project ("Phase I"), to be concluded at the latest on
November 1 (one), 2002 (two thousand two), shall continue the exploration and
the evaluation of the mining potential of the Lots started by the previous
owners of the Mining Concessions, with the following activities and estimated
costs: (i) diamond core drilling, US$60,000 (sixty thousand dollars of the
United States of America) and reverse circulation drilling, US$170,000 (one
hundred and seventy thousand dollars of the United States of America); (ii)
metallurgy, US$50,000 (fifty thousand dollars of the United States of America);
and (iii) contingent and working capital, US$50,000 (fifty thousand dollars of
the United States of America), for an aggregate of US$330,000 (three hundred
thirty thousand dollars of the United States of America).

The participation of FG and Santa Rita in Phase I shall be binding.

(B) In the second phase of the Project ("Phase II"), to be started at the latest
on November 1 (one), 2002 (two thousand two) and concluded at the latest on
March 1 (one), 2003 (two thousand three), the exploration and the evaluation of
the mining potential of the Lots shall enter into a second stage, with the
following activities and estimated costs: (i) surveying, US$10,000 (ten thousand
dollars of the United States of America); (ii) geotechnical, US$10,000 (ten
thousand dollars of the United States of America); (iii) hydrology, US$30,000
(thirty thousand dollars of the United States of America); (iv) environmental
permitting and negotiation of rights of way, US$50,000 (fifty thousand dollars
of the United States of America); (v) feasibility study preparation, US$200,000
(two hundred thousand dollars of the United States of America); and (vi)
contingent and working capital, US$50,000 (fifty thousand dollars of the United
States of America), for an aggregate of US$350,000 (three hundred fifty thousand
dollars of the United States of America).

The Participants may opt to initiate or not to initiate Phase II, depending on
the drilling and metallurgical results obtained in Phase I, in both
Participants' judgment, but once they agree to initiate it, their participation
in that Phase II shall be binding, save as otherwise expressly stipulated in
this contract. The interest of the Participant that decides not to participate
in Phase II shall be subject to dilution as provided in Clause 8 (eight) of this
contract.

(C) In the third phase of the Project ("Phase III"), FG shall transfer to Santa
Rita the ownership and the possession of those items that make up the Equipment
which are necessary for the Development of the Project pursuant to the
feasibility study mentioned in Clause 3 (three) Section (B) subdivision (v)
(five) of this contract ("the Equipment Effectively Contributed"), in optimal
state of maintenance and working conditions and free and clear of encumbrances,
litigations, and ownership limitations, together with the original facturas that
document each item ("the Fourth Contribution of FG"). The transfer provided in
this Section shall be subject to the suspensive condition that the finance
mentioned in Clause 5 (five) Section (A) be obtained. If the condition is
fulfilled, its effects shall be deemed to have taken effect on the date on which
the transfer was executed. The transfer shall be deemed ineffective if the above
suspensive condition is not met.

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The transfer of ownership and possession of the Equipment Effectively
Contributed to Santa Rita, subject to the suspensive condition mentioned in the
immediately preceding paragraph, shall be made before a Notary Public at the
latest on March the 2nd (second), 2003 (two thousand three), and the resulting
notarial instrument shall be recorded at the competent Public Commerce Registry.
The fees and expenses associated with that transfer and the recording fees shall
be paid by FG and Santa Rita in proportion to their respective interest shares
in the Project resulting after the above transfer has been effected.

FG shall move to and install the Equipment Effectively Contributed at the mine
site at the Project's costs, with financed funds.

(D) In the fourth stage of the Project ("Phase IV"), Santa Rita (i) shall build
an access road ("the Access Road") of sufficient quality in a location deemed
appropriate by FG and Santa Rita, (ii) shall purchase water extraction rights or
obtain water extraction concessions in number and volumes sufficient for the
operation of the mine and for the processing of ore in all of its stages, and
shall register all those acts ("the Water Rights"), and (iii) shall drill,
equip, and habilitate the necessary wells to that effect ("the Habilitations").
Santa Rita shall grant Chanate or its assignee the option to purchase the Water
Rights, and, if Chanate or its assignee elects to purchase them, it shall assign
to Santa Rita the exercise of the said Water Rights in the contract mentioned in
Clause 6 (six) Section (A) or in an amendment thereto, likewise for the duration
of the Project.

Phase IV shall start at the latest on the business day following the day on
which the finance mentioned in Clause 5 (five) Section (A) has been obtained.

The participation of FG and Santa Rita in Phase IV shall be binding, save as
otherwise expressly stipulated in this contract, among which is the provisions
contained in Clause 5 (five) Section (C) and 14 (fourteen) Section (A)(8).

(E) The fifth phase of the Project ("Phase V") shall be for the exploitation,
processing, and sale of the mineral at a commercial scale.

FG and Santa Rita shall combine and coordinate their efforts and resources, in
proportion to their respective interests in the Project, so that the extraction,
production, and processing of ore reaches its optimal level ("the Optimal Level
of Production") in a term of 3 (three) months from its inception. Which that
Optimal Level of Production shall be shall be determined by FG and Santa Rita
during or upon the conclusion of Phase II.

4. CONTRIBUTIONS OF FG TO SANTA RITA AND CONTRIBUTIONS OF SANTA RITA FOR THE
DEVELOPMENT OF THE PROJECT AND SHARES OR INTEREST THAT FG SHALL EARN IN THE
PROJECT.

(A) On or before March 15 (fifteen), 2002 (two thousand two), FG shall
contribute to Santa Rita, in the form of full ownership transfer, the first
US$75,000 (seventy-five thousand dollars of the United States of America) needed
to cover the estimated costs of Phase I ("the First Contribution of FG"). Santa
Rita shall use the First Contribution of FG preferably to pay the diamond core
drilling.

In consideration for the First Contribution of FG, FG shall be deemed the legal
owner of a share of 30% (thirty per cent) in the Project.

In addition to the First Contribution of FG, FG shall contribute to Santa Rita,
in the form of a full ownership transfer, an amount equal to the rest of the
estimated cost of the activities of Phase I ("the Second Contribution of FG").

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In consideration for the Second Contribution of FG, FG shall be deemed the legal
owner of an additional share of 1% (one per cent) in the Project once Phase I of
the Project has been concluded at FG and Santa Rita's satisfaction.

Santa Rita shall pay the other half of the rest of the estimated cost of the
activities of Phase I.

(B) FG shall contribute to Santa Rita, in the form of a full ownership transfer,
an amount equal to half of the estimated cost of the activities of Phase II
("the Third Contribution of FG"), and Santa Rita shall pay the other half of the
said cost.

In consideration for the Third Contribution of FG, FG shall be deemed the legal
owner of an additional share of 2% (two per cent) in the Project once Phase II
has been concluded at FG and Santa Rita' satisfaction.

(C) In consideration for the Fourth Contribution of FG, FG shall be deemed the
legal owner of an additional share of 4% (four per cent) in the Project.

(D) Once Phase IV has been concluded, to both FG and Santa Rita's satisfaction,
FG shall be deemed the legal owner of an additional share of 3% (three per cent)
in the Project.

(E) Once that, in Phase V, the Optimal Level of Production has been reached, in
both Participants' judgment, FG shall be deemed the legal owner of an additional
share of 5% (five percent) in the Project.

(F) If after FG and Santa Rita have agreed to initiate Phase II of the Project
and after FG has been deemed the legal owner of the interest of 30% (thirty
percent) mentioned in the second paragraph of Section (A) of Clause 4 (four) of
this contract, FG does not wish to participate or cannot continue participating
in the Development of the Project, Santa Rita shall have the option to purchase
the said interest of 30% (thirty percent) from FG for a price of US$127,500 (one
hundred twenty-seven thousand five hundred dollars of the United States of
America) ("the Option").

Santa Rita shall have a term of 45 (forty-five) business days ("the Option
Term") to decide whether or not it will exercise the Option, computed from the
next business day following the day on which it has received notice from FG to
the effect that FG has decided not to continue participating in the Development
of the Project. FG shall be considered in liberty to sell that interest of 30%
(thirty percent) in the Project to any other person or entity if Santa Rita (i)
within the Option Term notifies FG that it will not exercise the Option, or (ii)
fails to notify to FG within the Option Term whether or not it will exercise the
Option, or (iii) fails to pay FG the purchase price stipulated in the
immediately preceding paragraph within a term of 15 (fifteen) business days
following the lapse of the Option Term in the event Santa Rita has notified FG
within the Option Term that it has exercised the Option.

(G) None of FG's contributions to the Project shall give any right or privilege
to FG on the Mining Concessions or on the Lots or on the rest of Santa Rita's
assets or on the shares issued by Santa Rita, and none of said contributions
shall give FG any privilege or right to FG on the assets of the shareholders,
subsidiaries, or affiliates of Santa Rita or on the shares issued by said
shareholders, subsidiaries, or affiliates.

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(H) Santa Rita shall give FG a right of first refusal to perform the reverse
circulation drilling and the metallurgical testing and to render the
construction services required by the Project, on equal terms and conditions
respecting price, time, and quality. The rendering of those services shall not
convert FG labor or service partner of the Project.

5. SPECIFIC ISSUES IN REGARD TO PHASE IV.

(A) The Participants shall combine and coordinate efforts and resources, in
proportion to their respective interests in the Project, in order to get Santa
Rita to obtain financing to carry out Phase IV. If it were required by the
lenders, FG and Santa Rita or their respective shareholders, or FG and Santa
Rita and their respective shareholders, shall guarantee the repayment of that
financing in proportion to the respective interests of FG and Santa Rita in the
Project.

(B) Santa Rita shall utilize the financing mentioned in the immediately
preceding Section to build the Access Road, to purchase the Water Rights (if
they are not purchase by the owner of the Mining Concessions), and to carry out
the Habilitations.

(C) If the financing that is the subject matter of this Clause is not obtained
at the latest on September the 1st (first) of 2003 (two thousand three), the
Project shall dissolve as provided in Clause 14 (fourteen) Section (A)(8), or
else the Project shall be carried out with Additional Contributions, as defined
in this contract.

6. SANTA RITA'S OBLIGATIONS.

In addition to other obligations on its part to be performed pursuant to this
contract, Santa Rita shall have the following:

(A) At the latest on March the 15th (fifteen), 2002 (two thousand two), Santa
Rita shall enter into with Chanate, or with the assignee of the Mining
Concessions, the contract or agreement mentioned in Section (E) of Recital I
(one), by which Chanate or its assignee shall permit Santa Rita, for the
duration of the Project, (i) the exploration and exploitation of the Lots for
the purposes stipulated in this contract and (ii) the use and enjoyment of the
surface land where the Lots are located for the purposes stipulated in this
contract, which surface land is actually owned by Chanate; all of the above
likewise subject to what has been agreed in Section (D) of clause 3 (three) in
regard to Water Rights. If the said agreement is not entered into, the Project
shall terminate for the cause provided in Clause 14 (fourteen) Section (A)(1) of
this contract, and Santa Rita shall reimburse FG, within the term provided in
this Section, the Consideration to Participate and the value added tax on the
same, payable free of interest and of penalties or discounts to FG.

The term mentioned in this Section shall be solely for the making of the
contract in question in a preliminary or private form, subject to its being
formalized before a Notary Public and to its being registered and noticed as
required by the law in due course.

The payments due to Chanate or to its assignee in regard to the contract
provided in this Section shall be at Santa Rita's exclusive cost, save (i) the
payments required to keep the Mining Concessions in good standing as provided in
the Mining Law and its Regulations and (ii) the payments required to keep the
Water Rights in good standing as provided by the applicable provisions, which
payments shall be deemed operational expenses and, consequently, shall be at the
Project's exclusive cost.

(B) Santa Rita shall carry out the five phases of the Project and, in general,
it shall operate the mine, in its capacity as active member.

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(C) Prior to the making of the most important decisions in regard to the
Development of the Project, Santa Rita will let itself advise by a technical
committee ("the Technical Committee") composed by an odd number of members.
Santa Rita shall always have the right to designate the majority of the members
of the Technical Committee, and the Technical Committee shall always pass its
resolutions by a majority of votes. Santa Rita shall decide which of the members
named by it shall act as President of the Technical Committee. The Technical
Committee, in turn, may let itself be advised by external experts.

The Technical Committee shall meet monthly or with the periodicity agreed upon
by its members or at the express request of any of FG and Santa Rita, at the
mine site or at any other place selected by its members. The Technical Committee
may also deliberate and decide over the phone or by any other electronic means,
and its President or the member of the Committee selected by the President shall
put together a minutes of all its meetings that shall be signed by the President
and the other members who wish to do it.

(D) Santa Rita shall appoint a Project Manager who shall have the authority and
power granted him by Santa Rita, excluding authority to perform ownership acts
and to bind Santa Rita or the concern as accommodation endorser, surety, or
joint and several obligor. The Project Manager shall be under Santa Rita's
orders and instructions in regard to his administrative authority and functions,
and shall serve as the liaison between FG and Santa Rita in regard to the
Project.

(E) Santa Rita shall request, obtain, and renew, in its name, all the permits,
consents, licenses, concessions, authorizations, approvals, and opinions that
may be required for the carrying out of the five phases of the Project and, in
general, for the operation of the mine.

(F) Santa Rita shall timely fulfill the obligations and timely exercise the
rights imposed and afforded by the laws, regulations, official standards, and
other administrative provisions relating to the Development of the Project,
without prejudice to its right to oppose by every legal means to the application
of the said laws, regulations, official standards, and other administrative
provisions when in its judgment they affect negatively the interests of the
Project or its functions or obligations as active member thereof.

(G) Santa Rita, consistent with the terms of the contract or agreement that it
enters into with Chanate or with its assignee in regard with the Mining Rights,
shall pay timely the mining taxes applicable to the Mining Concessions and, in
general, it shall discharge timely the obligations imposed to Santa Rita by the
Mining Law and its Regulations in regard to the said Mining Concessions in order
to keep them in good standing.

(H) Santa Rita shall maintain the Mining Concessions free and clear of
encumbrances, litigations, and ownership limitations, unless the same must be
encumbered to guarantee the payment of the financing obtained by Santa Rita in
order to carry out the Development of the Project, in which case Santa Rita will
have the Mining Concessions encumbered by their owner.

(I) Santa Rita shall carry out the Development of the Project in accordance with
the applicable Mexican official norms and, if there are no such norms, in
accordance with the standard practices and parameters. Santa Rita shall also
maintain the other assets dedicated to the carrying out of the different phases
of the Project, including the Equipment Effectively Contributed, free and clear
of encumbrances, litigations, and ownership limitations, unless the same must be
encumbered to guarantee the payment of the financing obtained by Santa Rita in
order to carry out the Development of the Project.

<PAGE>

(J) Santa Rita shall keep the Equipment Effectively Contributed in good working
and operating conditions, normal wear and tear excepted, and it shall utilize it
only in the Development of the Project, unless it is convenient to utilize it in
other tasks for duly justified business reasons, after prior consultation of the
issue with FG and with the Technical Committee.

(K) Santa Rita shall fulfill timely all the obligations imposed to it by the
Income Tax Law and by other applicable tax laws, regulations, and provisions,
without prejudice to its right to oppose by every legal means to the application
of the said laws, regulations, and provisions when in its judgment they affect
negatively the interests of the Project or its functions or obligations as
active member thereof.

(L) Notwithstanding that it has not given and that it does not give FG any
assurance in regard to the profitability of the Project, and notwithstanding
that it has not promised or guarantied and that it does not guarantee FG any
profits or proceeds from the same, Santa Rita shall act diligently and devotedly
to try to get the concern to make profits, given the market conditions and other
factors that determine the viability of all mining businesses, but it shall not
be responsible for circumstances beyond its control or for Acts of God or for
force majeure, without detriment of the covenant contained in Clause 18
(eighteen). Consequently, Santa Rita shall not be responsible to FG or to any
other person in the event the Project does not make profits, unless the failure
to make profits is due to duly proved gross negligence of Santa Rita and always
considering the above-mentioned factors that determine the viability of all
mining businesses.

7. PROFITS AND LOSSES AND OTHER RESOLUTIONS OF THE MEETING OF PARTICIPANTS.

In addition to other matters reserved to it by this contract, the meeting of the
participants shall pass resolutions on profits and losses, on expenses and
investment budgets, and on other matters of concern for the Project, abiding by
the provisions contained in this contract in regard to functions, liabilities,
rights, and obligations of the Participants.

As President and Secretary of the meeting of participants shall perform those
designated as such by the Participants who own a majority of interests in the
Project.

The resolutions on profits or losses made in the Development of the Project and
other resolutions of the meeting of participants shall be governed by these
rules:

(A) Santa Rita shall determine the profits and losses of each business year for
the Project as mandated by the Mexican generally accepted accounting principles,
with abidance by what is provided in Section (J) of this Clause.

Whenever this contract mentions resolutions on distribution of profits, it shall
be understood that the mention is to financial and not to fiscal profits.

(B) The business years of the concern shall be annual, and they shall begin on
January 1st (first) and end on December 31st (thirty-first) of each year, save
the first one, which shall be irregular and shall run from the date this
contract was executed to December the 31st (thirty-first) of the year 2002 (two
thousand two).

(C) Santa Rita shall not undertake a business different from the Development of
the Project, without detriment to the stipulation contained in Section (J) of
clause 6 (six).

<PAGE>

(D) Santa Rita shall prepare and deliver to FG the balance sheet and the other
financial statements of the business year ("the Annual Balance") at the latest
within the three months following the end of each business year. The accounting
records and the documentary back up shall remain at Santa Rita's tax address
located at Tehuantepec 114 (one hundred fourteen), Suite 8 (eight), Colonia
Centenario, Hermosillo, Sonora 83260, from the next business day following the
day on which FG has received from Santa Rita the Annual Balance, to be reviewed
and examined by the accountants and advisors of FG, at FG's exclusive expense,
at the said tax address during business days and hours, with previous notice
given to Santa Rita at least with 48 (forty-eight) hours in advance that they
intend to make that examination.

(E) Together with the Annual Balance, Santa Rita shall deliver to FG a call for
the annual meeting of the Participants dealt with in Section (H) of this Clause
("the Annual Meeting"), which call shall indicate with precision the place
where, the day on which, and the hour at which it shall take place plus the
agenda. At FG's request, the Annual Meeting may discuss and decide on issues not
listed in its agenda.

(F) FG shall be entitled to make remarks in regard to or to object to the Annual
Balance within 30 (thirty) calendar days following the day on which Santa Rita
has delivered it to FG, expressing with clarity and precision why it makes the
above remarks and objections and providing Santa Rita with the information
required to evaluate them. FG shall express its remarks and objections in
writing, and it shall deliver them to the Project Manager at least 7 (seven)
calendar days prior to the holding of the Annual Meeting.

(G) The Annual Balance shall be deemed approved by FG in the event FG fails to
present the Project Manager its remarks or observations as provided in the
immediately preceding section.

(H) The Annual Meeting shall be held at the latest on the last Wednesday of
April of each year to pass whatever resolutions it may deem convenient in regard
to the profits or losses of the business year just ended.

(I) The resolutions on approval of the Annual Balance, distribution of profits
or their reinvestment or their use in the amortization of losses or in the
creation or reconstitution of reserves and on other matters of interest for the
Project discussed in the Annual Meeting shall be passed by a majority of
interests, and the resolutions thus passed shall be valid in relation to and
obligate absentees and dissidents, without detriment to the observation and
objection rights set forth in Section (F) of this clause 7 (seven) and the
separation right provided in Section (A) of Clause 15 (fifteen).

(J) Prior to the distribution of profits to the Participants, Santa Rita will
discharge the obligations assumed by Chanate in regard to the Stock Purchase
Option Agreement referred to in Section (D) of Clause 10 (ten) of this contract.

(K) The profits, when the Annual Meeting does not decide to apply them to other
ends, and the losses shall be distributed among the Participants in strict
proportion to their respective interests in the Project.

(L) The Project shall not have and shall be understood without labor or services
partners; consequently, none of the Participants shall have an automatic right
to half of the profits, and none of the Participants shall be exempt from taking
its proportional share in the losses of the business year. The services or the
labor that, if that is the case, any of the Participants renders to the Project
in no event shall make it a labor or services partner; they shall be compensated
to the provider as if it had no interest in the Project and as provided in the
Period's Budget.

<PAGE>

(M) The losses attributable to the Participants in no event shall be superior to
the value of their respective interests in the Project.

(N) In addition to the right to receive profits, when decreed pursuant to this
contract, Santa Rita shall be entitled to a compensation for the administration,
carrying out, and operation of the Project. The above compensation shall be set
annually by the Annual Meeting, may be paid on a monthly basis, and shall be
charged to the general expenses or overhead account, regardless of whether or
not there are distributable profits.

In addition to the right to receive profits, when decreed pursuant to this
contract, FG shall also be entitled to a compensation for supervising and
advising the Project. The above compensation shall be set annually by the Annual
Meeting, may be paid on a monthly basis, and shall be charged to the general
expenses or overhead account, regardless of whether or not there are
distributable profits.

The services provided in this Section shall not convert Santa Rita or FG labor
or service partner of the Project.

(O) No profit distribution shall be decreed if they are not actually made and
shown as such in the Annual Balance.

(P) No distribution of profits shall be made while the losses incurred in one or
more previous business years have not been restored or absorbed by the
application of other item of the net assets, or while the said losses have not
been amortized or compensated with additional contributions from the
Participants. Any advance payment or distribution of profits made in
infringement of this Section may be recovered from whom it has received it or
its reimbursement may be demanded from whom it has paid it, and whoever has
received it and whoever has paid it shall be jointly and severally obligated for
the reimbursement of the said advance payments and distributions.

(Q) Out of the net profits of the business year, a 5% (five percent) shall be
separated, as a minimum, to create a reserve fund, until this reaches one fifth
of the capital dedicated by the association to the Development of the Project.
The reserve fund must be recreated in the same manner when it diminishes by any
reason whatsoever.

(R) Santa Rita shall prepare and deliver to FG a monthly balance at the latest
within the month following the lapse of each calendar month. The accounting
records and back up of each monthly balance shall remain at FG's disposal as,
where, and for the uses provided in Section (D) of this Clause.

(S) The profits distributable to FG shall be paid to it at Santa Rita's tax
address indicated in Section (D) of this Clause.

(T) The expenses and investments budget (hereinbefore and hereinafter called
"the Period's Budget") may be annual or for a shorter period, as resolved by the
meeting of participants. Santa Rita shall deliver or send to FG the draft
Period's Budget at least 15 (fifteen) calendar days ahead of the date on which
it will be discussed and approved. The Period's Budget shall include only
expenses that benefit the Project directly, unless the Participants decide
otherwise. The Project shall not pay charges coming from the shareholders of the
Participants different from the ones provided herein or different from the ones
expressly and previously authorized by both Participants.

<PAGE>

(U) Nothing shall prevent the Participants from holding meetings with a
periodicity different from the annual one and the meeting thus convened from
passing resolutions on matters that concern the Annual Meeting, except those
relating to profits and losses, that shall be reserved to the Annual Meeting.
The Participants may also deliberate and decide over the phone or by any other
electronic means, and their resolutions thus passed shall have the same
validity.

(V) A minutes of all meetings of the Participants shall be put together, which
minutes shall set forth the place at, the hour at and the day on which it was
held, the attendants to the same and their respective interests in the Project,
the resolutions passed, which shall be literally transcribed, whatever may be
conducive to the perfect knowledge of the resolutions passed, and other things
that the Participants may wish to set forth in the minutes. A minutes shall also
be put together of all deliberations conducted and resolutions passed by
electronic means, and the minutes for said deliberations and resolutions shall
contain the information mentioned in this Section as pertinent to the said
minutes. All of the attendees must sign and return to Santa Rita the minutes
mentioned in this Section.

8. ADDITIONAL CONTRIBUTIONS.

(A) With abidance by the stipulations in this Clause, the meeting of the
Participants may resolve that the Participants make additional contributions
("the Additional Contributions") to the ones they undertake to make pursuant to
this contract in order to carry out the Development of the Project. The
Additional Contributions shall be utilized to make the payments and investments
budgeted in the Period's Budget.

(B) Any one of the Participants ("the Waiving Participant") may waive its right
to make the Additional Contributions budgeted in any Period's Budget or may make
them in an amount lesser than the proportional that it should, in which case the
non-waiving Participant shall be entitled to make the Additional Contributions
that the Waiving Participant fails to make, with the consequent dilution of the
Waiving Participant's interest in the Project. The Participants shall have a
term of 30 (thirty) calendar days to decide whether or not they will make the
Additional Contributions relating to the Period's Budget, from the business day
following the meeting of the Participants that resolved the Additional
Contributions to be made. After the above period has lapsed without the
Participants' having communicated to the other Participants that they will make
those Additional Contributions or after 15 (fifteen) calendar days have lapsed
without the Additional Contributions having been made, from the day on which
they assumed the obligation to make them, it shall be understood that the right
to make them has been irrevocably waived, with the consequent dilution of the
Waiving Participants' interest. The interest of the Waiving Participant in the
Project shall be deemed diluted in the proportion corresponding to the amount
that the Waiving Participant failed to contribute plus the proportion
corresponding to a 10% (ten percent) of the sum it failed to contribute, and the
Make-Up Amount provided in Section (D) of this Clause shall be added with an
amount equal to that additional 10% (ten percent).

(C) Should more than one Participant want to make the Additional Contributions
that the Waiving Participant decided not to make, the right to make them shall
belong to all of them in proportion to their respective interests in the
Project.

(D) The Waiving Participant shall have 30 (thirty) calendar days or the number
of days agreed upon by the Participants to reacquire the interest share that it
has lost as a consequence of the dilution provided in Section (B) of this
Clause, by making an Additional Contribution ("the Make-Up Amount") to the
Period's Budget of the period following the period in which the Waiving
Participant has been diluted, which Make-Up Amount must be equal to: (i) an
amount equal to that which the Waiving Participant should have proportionally
contributed to pay expenses and investments actually made and carried out in the
period in which it was diluted, less (ii) an amount equal to the funds, if any,
the Waiving Participant has contributed to pay his

<PAGE>

proportional share of expenses and investment budgeted in the period in which it
was diluted, plus (iii) an amount ("the Liquidated Damages") equal to 25%
(twenty-five percent) of the difference between the amounts indicated in
Subsections (i) and (ii) of this Section. Upon delivery of the Make-Up Amount,
the interests of the Participants shall be deemed readjusted to the
corresponding proportions, without considering the Liquidated Damages an
Additional Contribution. Notwithstanding what has been provided in Clause 10
(ten), the right to reacquire a share of interest that has been lost as
indicated in Section (B) of this Clause shall be personal of the Waiving
Participant, and it shall not be transferable or assigned to any other person,
except to its shareholders, affiliates, or subsidiaries together with the
interest in the Project belonging to the Waiving Participant as permitted in
this contract.

The Make-Up Amount shall always be sufficient for the Waiving Participant to
reacquire the interest share that it has lost as a consequence of the dilution,
and it shall include the additional 10% (ten percent) provided in Section (B) of
this Clause.

(E) Prior to the entering into of this contract, Santa Rita, directly or through
its shareholders, affiliates, or subsidiaries, contributed to the Project
US$600,000 (six hundred thousand dollars of the United States of America).
Consequently, Santa Rita's interest in the Project shall not be diluted as
provided in this Clause or in any other manner whatsoever before FG's
contributions get to amount to the same sum of US$600,000 (six hundred thousand
dollars of the United States of America) and only in the event that Santa Rita
fails to make the Additional Contributions. This Section shall not be
interpreted as obligating FG to make Additional Contributions in the sum of
US$600,000 (six hundred thousand dollars of the United States of America).

FG may be diluted as provided in this Clause from the day on which it shall be
deemed the owner of a interest of 30% (thirty percent) in the Project pursuant
to the stipulation contained in Clause 4 (four) Section (A).

(F) When the interest of any of the parties ("the Residual Participant") gets
diluted to a 10% (ten percent) or to a percent lower than that 10% (ten percent)
(both hereinafter called "the Residual Percentage") by virtue of the dilutions
permitted by this Clause, the other Participants shall have the option ("the
Option") to purchase from the Residual Participant the Residual Percentage for a
price equal to 50% (fifty percent) of its value, in proportion to the interest
in the Project that each one of the interested Participants have to purchase it.

The interested in purchasing the Residual Percentage shall have a term of 45
(forty-five) calendar days ("the Option Term") to decide whether or not they
will exercise the Option, counted from the business day following the day on
which the interest of the Residual Participant reaches the Residual Percentage.
The Residual Participant shall be free to sell the Residual Percentage to any
other person or entity if the other Participants (i) notify the Residual
Participant within the Option Term that they will not exercise the Option, or
(ii) fail to notify the Residual Participant within the Option Term whether or
not they will exercise the Option, or (iii) fail to pay to the Residual
Participant the price of the Residual Percentage within a term of 15 (fifteen)
business days immediately following the lapse of the Option Term in the event
that any or all of the Participants have notified the Residual Participant
during the Option Term that they have not exercised the Option.

<PAGE>

9. FG'S COMPTROLLER.

(A) In addition to the right granted to it by Section (D) of Clause 7 (seven),
FG may, at its exclusive expense, appoint a comptroller to oversee Santa Rita's
performance. The comptroller may at all times examine the state of the Project
administration and the documents of the same; he may also express the remarks
and objections that he may deem convenient, with abidance by the provision of
Section (F) of Clause 7 (seven).

(B) In the performance of his functions, the comptroller shall not obstruct or
hinder or hamper Santa Rita's works or those of its directors, officers,
employees, attorneys in fact, contractors, and consultants.

10. ASSIGNMENT OF RIGHTS AND OBLIGATIONS AND OF INTERESTS.

(A) None of the Participants may be entitled to assign its interest in the
Project without having granted the other Participants a right of first refusal
to purchase it pursuant to the immediately following Section of this Clause,
unless the assignment is made to a subsidiary, affiliate, or shareholder of the
assigning party, in which case the assignor shall respond unlimitedly and
jointly and severally with the assignee of the fulfillment of the obligations
and commitments of the assignee. The right of first refusal provided in this
Clause shall likewise not be granted when the assignment of the interest in the
Project is to be done, totally or partially in regard to any merger, split or
reorganization of the interest group to which the assignor belongs or when the
interest is to be assigned, totally or partially, as collateral in regard to any
financing obtained by the assignor in connection with the Development of the
Project.

(B) The right of first refusal provided in the immediately preceding Section
shall be governed by these rules:

(1) The Participant wishing to assign its interest in the Project ("the
Assigning Party") to an individual or entity different from any of its
subsidiaries, affiliates, or shareholders or in a case different from the ones
specified in the last paragraph of Section (A) of this Clause, shall give
written notice to the other Participants that it has received a good faith offer
to purchase its interest ("the Offer Notice"), indicating the name of the
offerer ("the Offerer"), the price offered, and the time in which the price will
be paid pursuant to the offer ("the Offer") of the Offerer.

(2) The receiving Participant ("the Receiving Party") of the Offer Notice shall
have 30 (thirty) calendar days ("the Exercise Term"), counted from the day
following that on which he receives the Offer Notice, to notify in writing to
the Assigning Party whether it will exercise ("the Exercise Notice") or not
exercise ("the Non-Exercise Notice") his preference right to purchase the
interest.

(3) If the Receiving Party gives Exercise Notice to the Assigning Party within
the Exercise Term, the assignment between the Assigning Party and the Receiving
Party shall be entered into within the 15 (fifteen) calendar days ("the
Formalization Term") following the date of reception of the Exercise Notice by
the Assigning Party.

(4) If the Receiving Party gives an Exercise Notice to the Assigning Party
within the Exercise Term, the Assigning Party shall assign its interest in the
Project to the Receiving Party at the same price and under the same conditions
under which it would have sold it to the Offerer.

(5) If the Receiving Party (i) does not purchase the interest in the Project
from the Assigning Party within the Formalization Term in spite of having given
an Exercise Notice to the Assigning Party; or (ii) gives a Non-Exercise Notice
to the Assigning Party within the Exercise Term; or

<PAGE>

(iii) fails to give to the Assigning Party any notice within the Exercise Term,
then the Assigning Party shall be free to sell its interest in the Project to
the Offerer in the terms specified in the Offer.

(6) If more than one Participant wants to exercise the right of preference, the
said right of preference shall belong to all of them in proportion to their
respective interests in the Project.

(C) The rights and obligations of the Participants and their respective
interests in the Project shall be indivisible. Consequently, none of the
Participants shall be entitled to assign its rights or obligations, or both,
under this contract, if it does not assign its interest in the Project too.

(D) Santa Rita shall not be obligated to grant FG the right of first refusal to
purchase a 51% (fifty-one percent) of Santa Rita's interest in the Project in
the event AngloGold (Jerritt Canyon) Corp. y AngloGold North America Inc.
(hereinafter collectively "AngloGold") wish to exercise the option to acquire
that interest of 51% (fifty-one percent) pursuant to Section 6.7 of a Stock
Purchase Option Agreement (the "Stock Purchase Option Agreement") entered into
those corporations, as sellers, and Leadville Mining & Milling Corporation and
Leadville Mining & Milling Holding Corporation, as buyers, on December 15
(fifteen), 2000 (two thousand), in regard, among other things, to the shares
issued by Minera Chanate S.A. de C.V., from which Santa Rita purchased the
Mining Concessions. An authentic copy of the said Stock Purchase Option
Agreement is attached to this contract as Exhibit "3" hereto. If AngloGold
acquires the 51% (fifty-one percent) mentioned in this Section, (i) Santa Rita
and FG shall keep the remainder interest in the Project in the percentages
corresponding to each one of them pursuant to this contract and (ii) Santa Rita
shall negotiate on its own behalf and on behalf of FG the new associative
arrangement that shall serve as a vehicle for the Development of the Project,
pursuant to Section 6.7(d) of the Stock Purchase Option Agreement. At all times,
whether AngloGold does acquire or does not acquire the above-mentioned 51%
(fifty-one percent) in the Project, FG and Santa Rita shall exercise their
rights and fulfill their obligations provided in this contract and in any
amendment thereto in a manner consistent with the rights of AngloGold derived
from the Stock Purchase Option Agreement, and they shall not take any action or
incur in any omission infringing those rights, in the strictest terms of the
Stock Purchase Option Agreement.

(E) Notwithstanding what is provided in the other Sections of this Clause, the
Assigning Party need not have a concrete Offer or a concrete Offerer to grant to
the other Participants the right of first refusal to purchase its interest in
the Project, in which case it shall suffice that the Assigning Party gives
written notice to the other Participants that it wishes to sell its interest in
the Project, after the which the right of first refusal of the other
Participants to purchase that interest shall be governed by the other Sections
of this Clause to the extent that they were applicable.

11. ADMISSION OF NEW PARTICIPANTS IN THE PROJECT.

(A) For the admission of new participants in the Project the consent of those
participants representing the majority of interests in the same shall suffice.

(B) The new participants in the Project shall undertake, expressly and in
writing, to abide strictly by the terms of this contract.

(C) No new participant in the Project shall be admitted if prior to that the
already-existing participants are not granted a right of first refusal to make
the new or additional contributions that the Development of the Project
requires. For the exercise of that right of preference the procedure and the
terms set out in Section (B) of the preceding clause shall apply, with the
necessary changes to facilitate the application of the said procedure.

<PAGE>

12. BUSINESSES OF THE SAME KIND.

(A) The Participants shall be entitled to participate in Mexican mining
businesses different from the one that is the matter of this contract and
likewise shall be entitled to participate in Mexican corporations or
partnerships that carry them out, unless any of the above is directly
detrimental to the Project.

(B) The prohibition set forth in the immediately preceding Section shall extend
(i) to all kinds of share ownerships or of portions of interest or of other
forms of interests or of participations in entities, business or civil,
"asociaciones en participacion", unincorporated associations, trusts, joint
ventures, cooperatives, and any other type of associative instruments or legal
arrangements; (ii) to the administrative, overseeing, or consultation bodies of
all the above entities, business or civil, "asociaciones en participacion",
unincorporated associations, trusts, joint ventures, cooperatives, and any other
type of associative instruments or legal arrangements; (iii) to other kinds of
associative instruments or legal arrangements; and (iv) to any type of contracts
or agreements by which the control or the right to participate in any of the
entities, contracts, legal arrangements, or instruments mentioned in this
Section is acquired.

(C) This Clause does not bind the shareholders, affiliates, or subsidiaries of
the Participants.

13. SEPARATION RIGHTS.

Save for what has been agreed in Section (A) of clause 15 (fifteen) and for what
has been agreed in Clause 6 (six) Section (A) in regard to the reimbursement of
its Consideration to Participate and to the value added tax on the said
Consideration, none of the Participants shall be entitled to obtain the total or
partial reimbursement of its contributions or to separate, regardless of the
reason, cause, or motive therefore.

14. DISSOLUTION AND LIQUIDATION OF THE CONCERN.

The concern formed by this contract shall dissolve and liquidate in abidance by
these rules:

(A) It shall dissolve

     (1)  because the purpose for which it was created can no longer be achieved
     or because the said purpose has been consummated;

     (2) because of continued non-profitability;

     (3) because the Participants have so resolved in conformity with what is
     stipulated in Section (I) of Clause 7 (seven);

     (4) because the shares of interest in the Project end up being owned by one
     participant;

     (5) because of the loss of two thirds of the assets utilized to carry out
     the activities of the concern, unless the Participants decide to restore
     them;

     (6) by the lapse of 20 (twenty) years from the date on which this contract
     was executed and delivered if before the lapse of that term no other
     termination event provided in this Clause has materialized; and

<PAGE>

     (7) In the event provided in Section (B)(12) of Clause 19 (nineteen); and

     (8) In the event provided in Clause 5 (five) Section (C).

The issue whether or not any of the dissolution events has occurred may be
settled as set out in Clause 19 (nineteen) of this contract.

(B) The concern shall not dissolve by the death, inability, or dissolution and
liquidation of any of the Participants or by rescission of this contract in
regard to one or more of the Participants.

(C) Once dissolved, the concern shall be put in state of liquidation.

(D) The liquidation of the concern shall be made by Santa Rita.

(E) Santa Rita shall be understood in office for the purposes of the liquidation
from the time the concern is put in state of liquidation.

(F) The liquidation of the concern shall be practiced following the resolutions
passed by the Participants when the dissolution is approved. If none of such
rules is passed, the liquidator shall have this authority:

     (1) it shall inventory the concern's assets and liabilities;

     (2)  it  shall  conclude  the  Project's   operations   that  had  remained
     outstanding as of the dissolution;

     (3) it shall  collect  what is owed to Santa Rita and shall  settle what it
     owes in regard to the Project;

     (4) it shall sell the assets dedicated to the operation of the mine;

     (5) it shall  liquidate each  Participants'  share in the credit balance of
     the concern;

     (6) it shall put together the liquidation final balance and shall submit it
     to the discussion and approval of the Participants as provided in Section
     (I) of Clause 7 (seven) hereof;

     (7) it shall  deposit the final  balance,  once  approved,  with the Public
     Commerce Registry; and

     (8) once the liquidation is concluded, it shall obtain from the Public
     Commerce Registry the cancellation of this contract's recording.

(G) No total or partial delivery of the Participants' share in the credit
balance shall be made while the concern's debts are not paid or extinguished or
while its amount has not been deposited if their payment were not possible by
any reason.

(H) The liquidator shall maintain in deposit the records and documents of the
concern during 10 (ten) years after the date on which the liquidation is
concluded.

(I) Once the debts of the concern have been settled, the remainder shall be
distributed among the Participants with abidance by these rules, unless the
Participants decide to do it otherwise pursuant to what has been agreed in
Section (I) of Clause 7 (seven) of this contract; to wit:

<PAGE>

     (1) If the assets that compose the credit balance are easily divisible,
     they shall be apportioned in proportion to the interest of each Participant
     in the common assets. Out of those common assets, the Equipment Effectively
     Contributed shall be excluded, which Equipment shall remain as Santa Rita's
     exclusive property and, therefore, shall not be considered a part of the
     credit balance distributable among the Participants.

     (2) If the assets were of diverse nature, they shall be fractioned in the
     respective proportional shares, and the Participants shall compensate among
     themselves any difference that there might result.

     (3) Once the lots have been formed, the liquidator shall call the
     Participants to a meeting in which they will be informed of the respective
     apportionment plan, and the Participants shall have a term of 15 (fifteen)
     business days, from the day following the day of the meeting, to ask in
     writing any amendments, if they believe that their rights are impinged.

     (4) If the Participants expressly manifest their conformity, or if they do
     not express any remark within the term mentioned in the immediately
     preceding subdivision, they shall be taken as having agreed with the
     apportionment plan, and the liquidator shall make the respective transfers
     and shall extend, if necessary, the required documents.

     (5) If during the term set out in subdivision 3 (three) hereof the
     Participants make remarks to the apportionment plan, the liquidator shall
     again call to a new meeting within a term of 15 (fifteen) business days, so
     that the plan is modified by mutual agreement of the Participants, and if
     no agreement were possible, the liquidator shall transfer the lot or lots
     in respect to which there has been disagreement in common to the respective
     Participants, and the resulting legal status between the transferees shall
     be governed by the joint ownership rules.

     (6) The goods or amounts that belong to the Participants and that were not
     taken hold of or collected within 2 (two) months, from their having been
     transferred, shall be deposited, the goods, into a competent court and
     shall be deposited, the amounts, in a bank, and they shall be released or
     delivered to their respective owners once these request them, jointly with
     their accessories and interest.

15. AMENDMENTS TO THIS CONTRACT AND SEPARATION BECAUSE OF MODIFICATIONS.

(A) This contract may be amended by agreement of the Participants who own a
majority of interests in the Project. If the contract is amended by a
majoritarian agreement of the Participants, the dissident minority shall have
the right to separate from the concern, subject to what has been provided in the
immediately following Section. This contract may not be amended as provided in
this Section to deprive any of the Participants of its interest in the Project
or to increase the contributions that each one of them must make for the Phases
I, II, III, and IV of the Project, as strictly provided herein, which
contributions may only be increased by mutual agreement of the parties.

(B) The minority that separates in conformity with the provisions of this
contract shall have the right to get the value of their contributions to the
Development of the Project reimbursed, less the amounts owed by the said
minority to the Project. The value of the contributions made by the separating
minority shall be the value shown in the Balance for the last calendar month
immediately preceding the date on which the separation takes effect pursuant to
the next paragraph.

180 (one hundred and eighty) calendar days after the said rights has been
exercised.

<PAGE>

If the minority exercises its right to separate in conformity with this
contract, the separation shall take effect as follows: (i) if the right is
exercised during the first or second year of the life of the Project ("the Life
of the Project"), the separation shall take effect 365 (three hundred
sixty-five) calendar days after notice of the separation was given to the other
Participants; (ii) if the right is exercised during the third or fourth year of
the Life of the Project, the separation shall take effect 270 (two hundred
seventy) calendar days after notice of the separation was given to the other
Participants; (iii) if the right is exercised during the fifth, sixth, seventh,
or eighth year of the Life of the Project, the separation shall take effect 180
(one hundred eighty) calendar days after notice of the separation was given to
the other Participants; (iv) if the right is exercised during the ninth or tenth
year of the Life of the Project, the separation shall take effect 90 (ninety)
calendar days after notice of the separation was given to the other
Participants; (v) if the right is exercised during the eleventh or any year
after the eleventh year of the Life of the Project, the separation shall take
effect 60 (sixty) calendar days after notice of the separation was given to the
other Participants. For the purposes of this paragraph, the Life of the Project
will be deemed to have started on the business day following the day on which
production at commercial scale initiated.

(C) All amendments to this contract shall be made in writing and signed by all
the Participants or, if that is not possible, by the majority that agreed to
amend it. No oral amendment to this contract shall bind or shall be opposable to
any of the Participants.

16. CONFIDENTIALITY.

(A) The Participants shall keep discretion and confidentiality in regard to the
contents and terms of this contract and in regard to all kinds of information
they get hold of and they generate in regard to the Project or that they in any
manner obtain concerning the subject matter of the Project and of this contract,
during the term of the same and at least during the 3 (three) years immediately
following the termination or rescission of this contract. The Participants that
separate pursuant to what has been agreed in this contract shall keep the
discretion and the confidentiality referred to in this Section during the 3
(three) years immediately following the date on which their separation must be
considered final.

(B) The Participants may disclose the information referred to in the immediately
preceding Section without encroaching upon their discretion and confidentiality
obligations (i) to the financial institutions that finance or to which financing
is requested for the Development of the Project; (ii) to the competent tax
authorities in the event of a tax audit or examination; (iii) to the auditors,
accountants, consultants, or legal counsel of the Participants; (iv) to the
Participants' respective shareholders; (v) to Santa Rita's examiner; (vi) to
FG's comptroller; (vii) if required by the regulatory authorities of bourse
offices or stock exchanges if the Participants or their shareholders are public
companies; (viii) in good faith to third parties that intend to acquire an
interest in the concern pursuant to Clause 10 (ten) of this contract; (ix) to
the public at large through news releases or other electronic means, save for
the information the Participants may, by prior written agreement, not want to
divulge by the means described in this subdivision; (x) to AngloGold pursuant to
the terms and for the purposes stipulated in the Stock Purchase Option Agreement
described in Clause 10 (ten) Section (D) hereof.

(C) Within the 30 (thirty) calendar days following the termination of this
contract by any of the causes set forth in the same or its rescission by any
reason whatsoever, the Participants shall deliver to Santa Rita all of the
documents and electronic data storage devices relating to the Project that they
might have in their possession or of the which they are able to get hold of, so
that Santa Rita can keep them during the term provided in Section (H) of Clause
14 (fourteen).

<PAGE>

(D) Within the 30 (thirty) calendar days following the date of its separation in
conformity with the provisions of this contract, the Participant who separates
shall deliver to Santa Rita, or to the new active member if Santa Rita is the
one that separates, all the documents and electronic data storage devices
relating to the Project that they might have in their possession or of the which
they are able to get hold of.

(E) The Participants shall have their directors, officers, employees, attorneys
in fact, consultants, and contractors fulfill the stipulation contained in this
Clause and, additionally, shall have them refrain from disclosing, photocopying,
or reproducing by any means the information contained in the documents and
electronic data storage devices if they do not have the prior, written, and
express consent of all the Participants.

(F) The failure to comply with the stipulation contained in this Clause shall
entitled the injured party to the payment of damages and losses.

17. REPRESENTATIONS FROM THE PARTICIPANTS.

The Participants shall refrain from representing, publishing, or in any other
manner communicating that they are partners or associates of one or more of the
other Participants or that they have an interest in the businesses of one or
more of the other Participants or that they have businesses in common, to the
extent that any of those representations, publications, or communications are
made in regard or with direct or indirect reference to businesses different from
the one that is the specific matter of this contract, under penalty of
rescission of this contract and of payment of damages and losses.

18. ACTS OF GOD OR FORCE MAJEURE.

(A) The Participants' obligations, except the obligations to pay or distribute
profits when its distribution has been resolved as stipulated herein and to make
other payments or contributions pursuant to this contract, shall be suspended to
the extent and during the time in which they cannot be fulfilled by acts of God
or by force majeure or because of any other event beyond its control,
foreseeable or unforeseeable, including, but without limitation, (i) fires,
explosions, earthquakes, hurricanes, storms, floods, sink holes, draughts, or
other adverse environmental conditions; (ii) wars, declared or undeclared,
rebellions, terrorist actions, guerrillas, social commotions, coup d'etats,
insurrections, and invasions; (iii) strikes, work stoppages, or other analogous
labor conflicts, taking of facilities, obstructions, agrarian intrusions, and
actions or omissions of indigenous groups, non-governmental or environmental
organizations or of similar-interests organizations; (iv) acts or omissions of
authorities, judgments or other kinds of judicial rulings, inability to obtain
permits, consents, licenses, concessions, authorizations, approvals, and
opinions; (v) delays or failures to comply of providers or transporters,
contractors, or subcontractors; (vi) shortage or inability to obtain labor,
transportation, materials, machinery, equipment, supplies, utilities or
services; (vii) accidents; breakdown of equipment, machinery or facilities; and
(viii) other events of analogous or similar nature.

(B) The Participant who sees itself affected by any of the events described in
the immediately preceding Section shall give notice of the same to the other or
other Participants as soon as possible, explaining the source and nature of the
event and the estimated time of its duration. The affected Participant shall
reinitiate the performance of its obligations as soon as reasonably possible.

<PAGE>

(C) The Participants shall contribute, in proportion to their respective
interests in the Project, to the removal, elimination, or attenuation of any
cause or event that hinders, hampers, or encumbers the operation of the mine or
that in any manner diminish, injure, or imperil the assets utilized in the same
or the possibility of making profits in the said operation.

(D) While the discharging of the Participants' obligations is kept in suspense
for the reasons provided in this Clause and in any of the situations described
in the immediately preceding Section, the Participants shall contribute, in
proportion to their respective interests in the Project, whatever might be
strictly indispensable to keep it in operation and conservation under the
circumstances.

19. SETTLEMENT OF CONTROVERSIES AND DISPUTES.

(A) Unless the plaintiff selects the arbitration course set forth in Section (B)
of this Clause, all the controversies or disputes that arise between or among
the Participants in regard to this contract shall be settled or resolved by a
competent judge sitting in Hermosillo, Sonora, for which the Participants waive
the jurisdiction and venue of any other judges or tribunals that may be
indicated by reason of territory, address, main location where they carry out
their businesses, and other similar reasons or circumstances.

(B) If the plaintiff opts for the arbitration course, the controversies or
disputes between the Participants shall be settled or resolved as indicated
hereinbelow:

     (1) Arbitration Rules.

     The arbitration shall be governed by the rules set out in Book Fifth, Title
     IV (four), of the Code of Commerce (to the extent that they have not been
     modified by this Clause) and by the rules stipulated in this Clause, and
     the arbitral decision shall be made in conformity with all of those rules.

     (2) Place of the arbitration.

     The arbitration shall take place in Hermosillo, Sonora, at the offices
     selected by the arbitration panel.

     Without detriment to what is provided in the preceding paragraph, the
     arbitration panel may meet in any place or offices that it may deem
     appropriate to hold deliberations among its members and to hear the
     parties, the witnesses, or the experts, or to examine goods or documents.

     (3) Arbitration Panel.

     Save for what is provided in the two last paragraphs of this subdivision 3
     (three), the arbitration panel will be composed of three members, one named
     by the plaintiff, other by the defendant, and one more by the arbiters
     named by the plaintiff and the defendant.

     If the defendant does not name the arbiter that it is entitled to within 5
     (five) calendar days counted from the date on which it receives demand from
     the plaintiff to submit the controversy or dispute to arbitration and to
     name an arbiter, the designation shall be made, at the plaintiff's request,
     by a state or federal competent judge sitting in Hermosillo, Sonora, and
     his resolution shall not be appealable or challengeable by any other means,
     including the "amparo" appeal.

<PAGE>

     The plaintiff's demand referred to in the immediately preceding paragraph
     must contain the indication of the arbiter named by it.

     If the two arbiters named as provided above do not get to agree on the
     designation of the third arbiter within the 5 (five) calendar days
     following the date on which the defendant's arbiter was appointed, the
     designation of the third arbiter shall be made, at the request of any of
     the parties or of any of the arbiters, by a federal or state competent
     judge sitting in Hermosillo, Sonora, and his resolution shall not be
     appealable or challengeable by any other means, including the "amparo"
     appeal.

     The arbiters must be individuals, of age, competent, of proved moral
     integrity, independent, and impartial and with experience in commercial
     disputes, preferably lawyers.

     The third arbiter may also be a company or entity devoted to the rendering
     of arbitration services, but in every case the individual who represents it
     in the arbitration proceedings must fulfill the requirements set out in the
     immediately preceding paragraph.

     All the decisions of the arbitration panel formed by three arbiters,
     including the award and the procedural rulings of all kinds, shall be made
     by a majority of votes.

     If the defendant does not name its arbiter within the term provided in the
     second paragraph of this subdivision 3 (three), the plaintiff may opt to
     proceed as provided in the second paragraph of this subdivision 3 (three),
     in which case paragraphs second, third, fourth, fifth, sixth, and seventh
     of this subdivision 3 (three) shall apply, or to submit the settling of the
     dispute or difference to a sole arbiter designated by a competent state or
     federal judge sitting in Hermosillo, Sonora. If the plaintiff opts for
     having the controversy or dispute settled by a sole arbiter designated by a
     judge, all references to an "arbitration panel" in this clause shall be
     understood as made to the arbitration panel integrated by that sole member.

     If the defendant fails to participate in the arbitration proceeding after
     having been duly notified of its initiation and duly served process, the
     arbitration panel shall declare it in contempt of court and shall render an
     arbitral award for the plaintiff, unless its failure to participate has
     been caused by an act of God or of irresistible force majeure, which event
     the defendant must prove to the satisfaction of the enforcing judge.

     (4) Arbitration Language.

     The arbitration shall be conducted in the Spanish language. This rule shall
     apply to all the parties' motions, to all hearings, and to any award,
     ruling, or communication of other kind issued by the arbitration panel.

     (5) Applicable Substantive Law.

     The differences or controversies shall be resolved or settled pursuant to
     applicable substantive Mexican law, including its norms relative to
     conflicts of laws. In regard to damages and losses, the arbiters shall only
     be empowered to condemn to the payment of those that are a direct and
     immediate consequence of a failure to comply an obligation, whether they
     have been caused or necessarily must be caused. Nothing stipulated in this
     subdivision shall be understood in detriment, waiver, or prejudice to the
     agreement contained in Clause 6 (six) Section (L) or to the representation
     made in Recital I (one) Section (G) of this contract.

<PAGE>

     (6) Applicable Procedural Law.

     The arbitral proceedings shall be governed by this clause and by the rules
     set by the arbitration panel, pursuant to Section 1,435 (one thousand four
     hundred thirty-five) second paragraph of the Code of Commerce, procuring
     (i) the prevalence of the material truth over the formal truth, (ii) the
     equality of treatment for the parties, and (iii) the parties' full
     opportunity to propound and present evidence and to unrestrictedly defend
     their rights.

     (7) Award.

     Against the arbitral award only nullity can be applied for before competent
     judge or tribunal in the cases provided in Section 1,457 (one thousand four
     hundred fifty-seven) of the Code of Commerce, and the judgment ending the
     nullity proceeding shall not be challengeable.

     (8) Express Waiver to Other Remedies.

     In an clear, precise, and irrevocable manner, the parties waive any other
     proceeding for the settlement of disputes to which they could be entitled
     pursuant to the laws if this arbitration clause had not been agreed upon,
     with abidance by and without detriment to the stipulations contained in
     subdivisions 9 (nine) and 11 (eleven) of this Clause.

     (9) Provisional or Precautionary Measures.

     Notwithstanding what has been provided in this Clause, the parties may ask
     the competent state or federal tribunals for provisional or precautionary
     measures, and no request to that effect shall be understood as implying a
     waiver or abandonment of the right to have the definitive issues solved or
     settled as provided in this Clause.

     (10) Arbitration Costs and Attorneys' Fees.

     The losing party shall pay the court costs and procedural expenditures,
     including reasonable attorneys' fees and the arbitration costs.

     (11) Judicial Remedies.

     This arbitration Clause shall not be interpreted as prohibiting the request
     of judicial action from competent courts in aid of arbitration, including,
     but without limitation, motions for subjection to arbitration, for
     suspension of judicial proceedings pending the conclusion of the
     arbitration proceeding, or for the granting of interlocutory injunctions
     directing that something be done or not done or those that grant
     repossessions, attachments, or other measures that may be necessary to
     prevent irreparable damages or losses to a party as long as the arbitral
     proceeding is not concluded.

     (12) Termination Rights.

     Any of the parties that prevail in any matter submitted to arbitration by
     any of the other parties for a trivial or frivolous reason or cause, shall
     have the option to terminate this contract within 30 (thirty) calendar days
     following the handing down of the arbitral award, without that generating
     obligations or liabilities different from the ones provided in this
     contract.

<PAGE>

     (13) Waiver of Appeals.

     The arbitral award may be recognized and its enforcement ordered by any
     competent tribunal. The parties waive any right that they might have to
     challenge or appeal before any Mexican or before any other tribunal from
     any legal issue that might arise during the course of the arbitral
     proceeding.

     The recognition or homologation of the arbitral award and its enforcement
     shall not be appealable in any form whatsoever.

     (14) Notices, Notifications, Service of Process.

     The parties agree that the delivery of any notices, notifications, or
     services of process in regard to any arbitration proceedings at their
     respective addresses indicated in this contract (or in any address
     thereafter indicated) shall be valid and sufficient.

20. GENERAL PROVISIONS.

(A) The captions in the Clauses of this contract and in the Sections or
Subdivisions of the same are used just for convenience; they shall in no way
restrict or enlarge their contents or their subject matter and they shall in no
way affect or determine their construction and interpretation.

(B) The failure of any of the Participants to exercise or to assert any of the
rights acquired by this contract or afforded them by the law in connection with
the same shall not be understood as a waiver of that Participant of the right it
has to exercise or assert that right or the right to exercise or to assert the
same right thereafter or other rights granted by this contract or by the law to
the Participants.

(C) The Participants undertake to take any such other action that may be
necessary in proportion to their respective interests in the Project, and to
sign any such other document that may be reasonably necessary or convenient in
order for the aims and objectives of the concern to be implemented and reached,
all of the above without compensation, payment, or additional interest shares.

(D) The subject matter of this contract is wholly contained and developed in
this document. There are no prior or simultaneous negotiations, oral or written,
that modify or supersede what has been agreed upon in this contract.

(E) Any of the Participants shall be entitled to request that this contract be
formalized before a Notary Public of Hermosillo, Sonora, and filed with the
competent Property and Commerce Public Registry. The Participant that by itself
requests the above formalization and filing shall be understood as acting on
behalf of all of the Participants. The expenses and notarial fees, including the
filing fees for the resulting notarial instrument, shall be paid by the
Participants by equal shares.

(F) The Participants may change the dates agreed upon in this contract without
this being understood as amended.

(G) Mexican law shall govern this contract.

<PAGE>

21. NOTIFICATIONS, NOTICES, AND COMMUNICATIONS.

(A) All notices, notifications, or communications given or due to be given in
regard to this contract shall be delivered or sent to the following addresses,
unless the parties indicate others at least 15 (fifteen) calendar days in
advance of the date in which the change of domicile is meant to take effect:

     (1) If they are for Santa Rita:

     Minera Santa Rita S. de R. L. de C.V.
     76 Beaver Street Suite 500 New York NY 10005 U.S.A.

     To the attention of: Jack Veeder Everett and Roger Austin Newell

     With copy for: Eduardo Robles Elias o Jose Joaquin Cabrera Ochoa, Boulevard
     Hidalgo 64, Colonia Centenario, Hermosillo, Sonora 83260

     (2) If they are for FG:

     Grupo Minero FG S.A. de C.V.
     Calle del Cobre 91
     Entre Calle del Yeso y Los Nogales
     Hermosillo, Sonora 83299

     To the attention of: Samuel Fraijo Flores

With copy for: Daniel Gutierrez Perez,  Calle del Cobre 91, entre Calle del Yeso
y Los Nogales, Hermosillo, Sonora 83299

(B) Unless otherwise agreed in this contract, the notices, notifications, or
communications referred to in this Clause shall take affect on the business day
following the day on which they have effectively been received or delivered, at
the above indicated addresses, to the party to which they were directed or to
any employee, director, officer, or attorney in fact of the participant
addressee or to any individual of age who resides in the domicile of the
participant if this is an individual. If the post is used, the notices,
communications, and notifications shall always be sent by registered mail,
return receipt requested.

22. LEGAL VEHICLE.

During the term of this contract, the parties may discuss and, if they deem it
convenient, adopt any other legal instrument or arrangement or associative form
or combine their efforts and resources to continue the Development of the
Project utilizing any other legal mechanism, provided this contract's essential
stipulations are not changed and AngloGold's rights derived from the Stock
Purchase Option Agreement referred to in Section (D) of Clause 10 (ten) of this
contract are not infringed, and provided other third parties' rights are
likewise not infringed.

<PAGE>

23. LANGUAGE.

This contract will be signed in English and in Spanish, but the Spanish version
will control in the event of discrepancy.

24. DEFECTS OF THE WILL OR OF THE CONSENT.

This contract has neither been negotiated nor signed under the influence or
determination of fraud, bad faith, violence, unlawfulness, overreaching,
mistake, reverential fear, or inability or under any other defect of the will or
of the consent.

Well informed as to the legal reach and scope of this contract, the parties sign
it in full conformity and make it binding in all legal respects in 4 (four)
original copies, each of which shall be considered an original and shall be
equally valid, in Hermosillo, Sonora, on February 23rd (twenty-third), 2002 (two
thousand two).

                        For Grupo Minero FG S.A. de C.V.

                             -----------------------
                              Samuel Fraijo Flores,
                               Sole Administrator

                    For Minera Santa Rita S. de R. L. de C.V.

                               -------------------
                   Jack Veeder Everett and Roger Austin Newell
                                Attorneys in fact

                                    Witnesses

Daniel Gutierrez Cibrian                        Victor Manuel Juvera Gaxiola

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