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EXHIBIT 23.29(A)

Digest No. 16.498-2005

PURCHASE AGREEMENT

SOCIEDAD AGRICOLA RIO ESCONDIDO LIMITADA

AND

MINERA LUMINA COPPER CHILE S.A.

In Santiago, on this 14 day of November 2005, hereby appear: on
the one hand, Mr. Roberto Marzio Carrasco Owen, Chilean, married, commercial
engineering, ID No. 2.034.543/8, on behalf, as shall be evidenced, of
SOCIEDAD AGR¥COLA RIO ESCONDIDO LIMITADA, a company whose line of
business is that of its denomination, Tax Payer Number 79.805250 -0, both
domiciled for purposes hereof at 9889 Las Condes Avenue, apartment 32B,
hereinafter also referred to as the Sellerand/orRio
Escondido; and, on the other hand, Mr. John Joseph Selters, North American,
single, mining engineering, ID for foreigners No. 14.427.974 -3, on behalf, as
shall be evidenced, of MINERA LUMINA COPPER CHILE S.A., a company whose
line of business is that of its denomination, Tax Payer Number 99.531.960 -8,
both domiciled for purposes hereof at Las Nieves 3331, Vitacura, Santiago,
hereinafter also referred to as the Buyer and/orLumina; the
appearing persons being of the statutory age, who evidence their identities
through the aforementioned documents and hereby state:

FIRST: Property.Seller is the only and
exclusive owner of the following water rights:

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a) Consumable underground water rights, of permanent and
continuous exercise by a volume of 100 liters per second, which is pumped from a
well located within the El Fuerte Real Estate, that belong to Sociedad Agrícola
El Fuerte Limitada. Seller acquired this right by resolution number 437 of the
Dirección General de Aguas (DGA), dated July 8, 1996, which was reduced into a
public deed on August 5, 1996, before the Public Notary of Copiapó Mr. Eduardo
Cabrera Cortés. This right is registered under Seller name at page 53 overleaf,
number 51 of the Water Property Registry of the Real Estate Custodian of
Copiapó, corresponding to the year 1996.

b) Consumable underground water rights, of permanent and
continuous exercise by a volume of 100 liters per second, which is pumped from a
well located within the El Fuerte Real Estate, that belong to Sociedad Agrícola
El Fuerte Limitada. Seller acquired this right by resolution number 444 of the
Dirección General de Aguas (DGA), dated July 8, 1996, which was reduced into a
public deed on August 5, 1996, before the Public Notary of Copiapó Mr. Héctor
Cañas Valdés. This right is registered under Seller name at page 56, number 53
of the Water Property Registry of the Real Estate Custodian of Copiapó,
corresponding to the year 1996.

SECOND: Sellers
Representations.Seller hereby represents and warrants in favor of Buyer
that:

a) It is the exclusive owner of the water rights referred to in
clause first above and their titles are fully in force in accordance with
applicable law;

b) The referred water rights are free of liens, mortgages,
prohibitions, interdictions, seizures, promises, options, real or personal
rights, lease agreements on any other sort of agreement or instrument in favor
of third parties, and free of litigation or other restrictions that could affect
the transfer of the ownership and/or the use and enjoyment of them, and, in
general, free of all encumbrance;

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c) It does not require any consent or authorization from third
parties in order to execute the agreement herein;

d) There is no commenced legal action, litigation, complain or
procedure, nor it is aware of any of those that could be commenced, nor of facts
that could derive in the commencement of a legal action, litigation, complaint
or procedure, whether judicial or non judicial, in connection with the water
rights referred to in clause first above;

e) The water rights referred to in clause first above have
their legal titles in good standing according to Chilean law;

f) It is not aware of third parties complains or of third
parties that could have rights over the water rights referred to in clause first
above;

THIRD: Purchase.Hereby and through
this instrument Seller, acting duly represented as mentioned herein, hereby
sells, assigns and transfers to Lumina, for whom its appearing representative
accepts and acquires, the water rights individualized in letters a) and b) of
the clause first above, as well as all the rights derived therefrom in
accordance with the law, belonging to Seller pursuant to clause first above.

FOURTH: Price.The purchase price of
the water right referred to in clause first letter a) above amounts to
$2.837500. - dollars of the United States of America (hereinafter dollars).
The purchase price of the water right referred to in clause first letter b)
above amounts to $2.837500. - dollars.

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FIFTH: Price Payment.The prices
mentioned in the former clause, which amount to $5.675.000. - dollars will be
paid by Buyer to Seller as follow:

a) With the amount of USS1.000.000. - dollars that Buyer pays
in cash in this act to Seller, stating the latter that he receives this amount,
completely and to its whole and total satisfaction, by submitting Buyer a cheque
to the Notary that authorizes this deed, with the instruction to deliver it to
Seller once the water rights subject to this contract are registered under
Buyers name before the Water Ownership Registry of the Real Estate Registrar of
Copiapó.

b) With the amount of $2.275.000. - dollars, sum that will be
paid in or before the term of 1 year counted from the date of this agreement and
that the Buyer will pay to the Seller.

c) With the amount of $2.400.000. - dollars, sum that will be
paid in or before the term of 2 years counted from the date of this agreement
and that the Buyer will pay to the Seller

SIXTH: Form of Payment.For purposes of
foregoing clause five, Lumina shall notify Seller, with at least 5 days of
anticipation, the date on which each of the indicated installments shall be
paid, dates that cannot exceed the dated fixed therein for each of the
installments.

Such payment shall always be executed before the Public Notary
authorizing this agreement, or its successor or assignee, and against the
corresponding receipt public deed duly signed by the parties.

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In case Seller, for any reason, does not receive the payment
and does not sign the corresponding receipt deed, then it shall be valid the
payment to be done by Lumina delivering to the Public Notary authorizing this
agreement, or its successor or assignee, the corresponding vale vista
or cheque, under Sellers name with the instructions of handle the document to
the Seller against its signature of the pertinent receipt deed.

SEVENTH: Resolutory Condition.The
parties agree that this agreement and the total payment of each one of the
indicated price installments referred to in letters b) and c) of clause fifth
above will be subject to the negative resolutory condition, which consist that
this agreement will be terminated if Buyer does not obtain the legal
authorization from the Dirección General de Aguas and the pertinent Junta de
Vigilancia to establish a right compensation system, which allows to capture
the water corresponding to the rights individualized in previous clause first in
any basin upstream like Pulido, Potros or other, directly compensating Copiapó
River.. In the case the condition is verified, Lumina shall be entitle to ask
the resolution of this agreement and the parties in that case shall return
mutually what shall correspond to each other with the exception of Seller right
to keep as unique indemnification for any damage the amount of $1.000.000. -
dollars that is paid hereby in the way stated in letter a) clause fifth above.
Therefore, Seller will have to return any amount had received as a consequence
of this agreement that exceed the amount of $1.000.000. - , which the parties
hereby agree that will be held by Seller as a total and unique indemnification
for any damage that the latter may suffer from the resolution of this agreement.

If within the term of 2 years counted from the date of this
deed the resolutory condition referred to herein is not fulfilled, it will be
considered failed for all the legal effects.

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EIGHTH: Delay and Lack of
Payment.8.1In case Buyer delays the payment of any installment
set forth in clause five above, the Seller shall provide written notice to the
Buyer who in turn shall have the term of 30 business days to complete such
payment.

8.2If the term mentioned in the former paragraph is
elapsed and the Buyer does not pay any of the installments set forth in clause
five above, this contract will be terminated immediately, in the way stated by
article 1879 of the Chilean Civil Code. Moreover, if Buyer, at any time shows
his willingness to stop paying such installments, Seller shall only be
authorized to claim the resolution of this agreement. In both cases, Seller
shall have the right to keep, as a unique indemnification, every amount received
prior to such claim. For purposes hereof, the parties hereby agree that all the
damages that Seller may suffer due to the lack of payment of one or more
installments described in clause five above and due to the resolution of this
purchase, whatever the nature, class or amount of the damages Sellers may have,
shall be always equivalent to the currency quantities previously received by
Seller as part of the price. The parties hereby mutually and conventionally
appraise said damages upon such currency quantities effectively received by the
Seller prior to the letter resolution claim.

NINTH: Actions Waiver.For all
pertinent legal effects, Seller hereby expressly waives the action to claim the
enforcement of this agreement, therefore, any Buyers infringement in regards to
the timely payment or lack of payment of the price installments provided in
clause five above, shall only entitle Seller to claim this agreements
resolution and the indemnification of any damage in the way referred to in the
previous clause.

TENTH: Purchases Form.

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The purchase is done ad corpus, in the state in which
the water rights currently are, including all its uses, authorizations, customs
and easements, whether active or passive, free of occupants and from any type of
mortgages, liens, seizures, debts, litigation and prohibitions, whether
currently known by the parties or not.

ELEVENTH: Clearance.Seller shall be
liable for clearing vices in accordance to Chilean law.

TWELFTH: Material Delivery.The
material delivery of the water rights is hereby made.

THIRTEENTH: Acceleration of
PaymentsThe parties hereby agree that if Lumina sells or transfer to not
related third parties the water rights that acquires hereby, the resolutory
condition referred to in clause seventh herein will be considered failed and any
quota price payments referred to in letters b) and c) of clause fifth above that
is pending at that time, would be accelerated and consequently Seller would be
entitled to request payment of such pending quotas.

FOURTEENTH: Arbitration.Any difficulty
or controversy that may arise between the contracting parties regarding the
application, interpretation, duration, validity or execution of this agreement
or any other controversy regarding it, will be subject to arbitration, in
accordance with the current Arbitration Procedural Regulations of the
Arbitration and Mediation Center of Santiago. The parties grant irrevocable
special power to Santiago's Chamber of Commerce, so that, upon written request
from any of them, designate an arbitrating arbitrator from the members of the
arbitration body of Arbitration and Mediation Center of Santiago, submitting it
in this case to the procedure established by the Regulation of said Center,
which evidenced through public deed dated December 10, 1992, executed in the
Public Notary for Santiago of Mr. Sergio Rodríguez Garcés and

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to its subsequent amendments, that the parties declare to know
and accept. Against the arbitrator's resolutions no appeals will be filed, for
which reason the parties expressly waive them, including those of complaint and
cassation.

The arbitrator is specially empowered to settle any matter
related with his competence and/or jurisdiction.

FIFTEENTH: Miscellaneous.15.1
Confidentiality. Any information or data obtained in connection with the
performance of this agreement is confidential for Seller and the latter shall
not make any public statement concerning this agreement or the activities
contemplated thereunder without the prior written consent from Buyer, which
consent shall not be denied without justified reason.

15.2 Notices. All notices to be made or given by a party
hereunder shall be in writing and delivered by mail or by facsimile to:

To SellerSociedad Agrícola Río Escondido Limitada9889
Las Condes Avenue, apartment 32 B, Las Condes, Santiago. Att.: Hans George
Koch. Fax: 01425-2270196 e-mail: hgkoch@csicorr.com. To Buyer
Minera Lumina Copper Chile S.A.___ Las Nieves 3331, Vitacura
Santiago Att.: John Joseph Selters Fax: (56-2) 325-7572

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e-mail: luminacopper@vtr.netA party may
change its address by notice to the other party. All notices shall be given:

a) by personal delivery (including courier), which shall be
deemed to have been delivered on the day on which it shall have been delivered
to an adult located in the aforementioned domiciles.

b) by registered mail, charges prepaid.

c) by electronic communication, which shall be deemed to have
been delivered upon the production by the dispatching facsimile machine of a
transmission report showing the relevant number of pages comprising the relevant
document to have been sent to the correct facsimile number and the result of the
transmission as OK (or equivalent expression) unless the recipient notifies
the sender within twenty-four (24) hours that the transmission was not legibly
received.

All notices shall be effective and shall be deemed
received:

a) if by personal delivery or by registered mail, on the date
of delivery if delivered during normal business hours, and if not delivered
during normal business hours, on the next business day following delivery;
or

b) if by electronic communication, on the next business day
following receipt of the electronic communication.

15.3 Binding agreement. This agreement is binding and
compulsory upon the parties and will operate in their benefit thereof.

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15.4 Applicable Law. This agreement is executed and
governed by the laws of the Republic of Chile.

15.5 Domicile. For all purposes hereof, the parties
hereto set their domicile in the city of Santiago.

15.6 No Third Party Beneficiary Rights. This agreement
is for the benefit of the parties and their respective successors and assignees
only, and is not intended to create third party beneficiary rights in any other
party or in any government, governmental organization or agency.

15.7. Money Exchange. The sum of money herein expressed
in dollars of the United States of America will be paid in Chilean pesos, in
accordance with the exchange rate for the Observed dollar, as published by the
Central Bank of Chile in the Official Gazette on the day prior to the
corresponding payment. In the absence of said exchange rate, the exchange rate
Law No. 18.010, article 20, first paragraph, on Money Credit Operations, will
apply.

SIXTEENTH: Mortgage.In order to
guarantee the balance of the price set forth in clause five letter b) and c),
Buyer hereby constitutes in favor of Seller a mortgage over the water rights
referred to in clause first above, which must be recorded at the margin of the
ownership registration of the underground water rights to be done under Buyers
name in accordance to this agreement.

SEVENTEENTH: Other Rio Escondidos water
rightIn addition Seller is the only and exclusive owner of the
consumable underground water rights, of permanent and continuous exercise by a
volume of 67,5 liters per second, located in Los Loros sector, Borough of
Tierra Amarilla, Province of

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Copiapó, Third Region of Chile. Rio Escondido acquired this
right by purchase agreement subscribed with Héctor Ricardo Vallejo Choydeng by
means of public deed granted on February 12, 2004, before the Public Notary of
Copiapó Mr. Hernán Cañas Valdés. This right is registered under Rio Escondido
name at page 32 overleaf, number 20 of the Water Property Registry of the Real
Estate Custodian of Copiapó, corresponding to the year 2004.

This water right registers the following mortgages and
prohibition:

(i) First mortgage in favor of Mr. Héctor Ricardo Vallejo
Choydeng in order to guarantee the payment of the sale price, its adjustment and
interest and judicial costs if any from the purchase agreement subscribed by Río
Escondido and Héctor Ricardo Vallejo Choydeng by means of the public deed
granted on February 12, 2004, before the Public Notary of Copiapó, Mr. Hernán
Cañas Valdés. The referred mortgage is registered at page 1, number 1 of the
Water Mortgage Registry of the Real Estate Registrar of Copiapó, corresponding
to the year 2004.

(ii) Second Mortgage in favor of Mr. Héctor Ricardo Vallejo
Choydeng in order to guarantee the fulfillment of the obligations of the
purchase agreement subscribed by Río Escondido and Héctor Ricardo Vallejo
Choydeng by means of the public deed granted on February 12, 2004, before the
Public Notary of Copiapó, Mr. Hernán Cañas Valdés. The referred mortgage is
registered at page 2 overleaf, number 2 of the Water Mortgage Registry of the
Real Estate Registrar of Copiapó, corresponding to the year 2004.

(iii) Prohibition to burden and to transfer without previous
authorization from Mr. Héctor Ricardo Vallejo Choydeng the water rights referred
to in clause first above, according to what is stated in the public deed granted
on February 12, 2004, before the Public Notary of Copiapó, Mr. Hernán Cañas
Valdés. The referred prohibition is

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registered at page 7 overleaf, number 4 of the Water
Prohibition and Liens Registry of the Real Estate Registrar of Copiapó,
corresponding to year 2004.

EIGHTEENTH: OptionBy this instrument,
Río Escondido grant to Lumina a first purchase option over 52,5 liters per
second from the water right individualized in the clause seventeenth above,
purchase agreement that will be executed at Luminas option once the mortgages
and the prohibition referred in previous clause are legally risen. If Lumina
shows no intention to execute this purchase option after 6 months counted from
the rise of the mortgages and the prohibition, Río Escondido will free to offer
the sale of the water right to third parties.

NINETEENTH: Options Price and
Conditions.The parties hereby agree that price of the purchase that
Lumina has a first purchase option will be the sum of $1.575.000 dollars, amount
that will be paid as a price for the purchase of 52,5 liters per second from the
water rights referred to in clause seventeenth above. The parties agree that the
mode of payment of the indicated price will be as follow:

(i) The sum of $525.000. - dollars that Lumina will pay to Río
  Escondido at the moment that 52,5 liters per second from the water rights referred
  to in clause seventeenth above is registered under Luminas name in the
  Water Property Registry of the Real Estate Registrar of Copiapó;

(ii) The sum of $525.000 dollars that Lumina will pay to Río
  Escondido within the term of 1 year counted from the date in which the purchase
  agreement optioned herein is executed; and

(iii) The sum of $525.000 dollars that Lumina will pay to Río
  Escondido within the term of 2 years counted from the date in which the purchase
  agreement optioned herein is executed.

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In addition, the parties agree that the purchase agreement that
Lumina has a first purchase option will be subject to the same term and
conditions indicated herein for the purchase of the water rights referred to in
clause first above, with the exception of the price set forth hereof.

TWENTIETH:In addition, by public deed granted with this
date and in this same Notary's office, digest number 16.499 -2005, Rio Escondido
celebrated with Sociedad Agrícola El Fuerte Limitada a promise to purchase
agreement over 15 liters per second from the water right individualized in the
previous clause seventeenth. The parties agree that in the event that the
purchase agreement promised by Rio Escondido is not celebrated within the term
of 20 months counted from this date, Lumina will have to transfer to El Fuerte
15 liters per second from the water right individualized in letter a) of
previous clause first, in the same price and terms stated in the mentioned
promise to purchase agreement. As a result of the previous, the price of the
present transaction will be reduced in the amount of US$ 450.000 dollars, sum
that will be discounted from the quota price referred to in letter c) of the
clause fifth above.

TWENTY FIRST: Expenses.Any notary fees arising from
this deed will be equitably borne by both parties. Expenses arising from the
payment of any fees at Real Estate Registrars Office will be exclusively borne
by the Buyer.

TWENTY SECOND: Power of Attorney.The
bearer of an authorized copy hereof is empowered to request any appropriate
registrations, sub-registrations, cancellations and annotations at the competent
Real Estate Custodians Office.

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In addition, the parties hereto empower any one of Messrs.
Carlos Pérez-Cotapos Subercaseaux, Gonzalo Grez Jordán, Jerónimo Carcelén
Pacheco, Carlos Prat Guarachi and Rodrigo Fernández Robinson, so that any one of
them may execute rectifying or clarifying deeds as necessary for the correct
individualization and registration of the Property under Buyers name, and to
carry out any necessary acts or registrations arising herefrom, notwithstanding
any quoting mistake related to registrations of same Registrar, or any error in
identifying the Property that is object of this purchase agreement, that the
parties may have made, exclusively considering that the will of the parties
hereto is that as expressed in the different clauses and stipulations herein
contained.

LEGAL CAPACITIES.The legal capacity of John Joseph
Selters to act on behalf of MINERA LUMINA COPPER CHILE S.A. is stated on the
public deed dated September 5, 2003 subscribed before the Public Notary of
Santiago, Mr. Eduardo Avello Concha.

The legal capacity of Roberto Marzio Carrasco Owen to act on
behalf of AGR¥COLA RIO ESCONDIDO LIMITADA is stated on a special power of
attorney granted in Olympia, Washington State, United State, which duly
legalized in notarized with this date in this Notary Office.



MINERA LUMINA COPPER CHILE S.A.

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AGRICOLA RIO ESCONDIDO LIMITADA

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EXHIBIT 23.29(B)

Digest No. 16.500 -2005

OCCUPATION, AQUEDUCT, RIGHT OF WAY AND ELECTRIC LINE EASEMENTS

FROM

SOCIEDAD AGRÍCOLA EL FUERTE LIMITADA

TO

MINERA LUMINA COPPER CHILE S.A.

In Santiago, on this 14th day of November of 2005, hereby appear:
  on one hand, Mr. Mario José Luis Holvoet Castillo, Chilean, single, farmer,
  ID No. 6.201.926 -3, on behalf, as shall be evidenced, of SOCIEDAD AGRÍCOLA
  EL FUERTE LIMITADA, a company whose line of business is that of its denomination,
  Tax Payer Number 79.582.870 -2, both domiciled for the purposes hereof at 484
  Colipi street, office 207F, Copiapo, hereinafter also referred to as El
  Fuerte, and, on the other hand, Mr. John Joseph Selters, North American,
  single, mining engineering, ID for foreigners No. 14.427.974 -3, on behalf,
  as shall be evidenced, of MINERA LUMINA COPPER CHILE S.A., a company
  whose line of business is that of its denomination, Tax Payer Number 99.531.960
  -8, both domiciled for purposes hereof at Las Nieves 3331, Vitacura, Santiago,
  hereinafter also referred to as Lumina; the appearing persons
  being of the statutory age, who evidence their identities through the aforementioned
  documents and hereby state that they agree in the following voluntary easement
  agreement:

FIRST: Antecedents.Sociedad Agrícola El Fuerte Limitada is owner of the agricultural real
  estate named El Fuerte Estate, located in the area of Los Loros, borough of
  Tierra Amarilla, Copiapó Province, Third Region of Chile, which has following
  boundaries: North, Hacienda La

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Puerta; to the South, land of the succession of Julian Patiño;
  to the East, land of the succession of Julian Patiño, river in between;
  and to the West, the hill. The title of dominion of the indicated estate under
  the name of Sociedad Agrícola El Fuerte Limitada is registered at page
  833, number 759 of the Property Registry of the Real Estate Registrar of Copiapó,
  corresponding to the year 1985.

As well, by means of public deed dated November 14, 2005 granted
  in this Notary's office, digest number 16.498 -2005, Lumina acquired from Sociedad
  Agrícola Río Escondido Limitada (hereinafter Río
  Escondido) two underground water rights whose wells are constructed inside
  El Fuerte Estate. (i) Well of 37,5 meters depth from which by mechanical elevation
  a volume of 100 liters per second is extracted, volume that corresponds to the
  permanent underground water right whose inscription under Luminas name
  is in process and whose previous title under Sociedad Agrícola Río
  Escondido Limitadas name is registered at page 56, number 53 of the Water
  Property Registry of the Real Estate Registrar of Copiapó, corresponding
  to the year 1996 (hereinafter Well A); (ii) Well of 46 meters depth from which
  by mechanical elevation a volume of 100 liters per second is extracted, volume
  that corresponds to the permanent underground water right whose inscription
  under Luminas name is in process and whose previous title under Sociedad
  Agrícola Río Escondido Limitadas name is registered at page
  53 overleaf, number 51 of the Water Property Registry of the Real Estate Registrar
  of Copiapó, corresponding to the year 1996 (hereinafter Well B). Furthermore,
  by means of the same public deed referred above, Lumina acquired a first purchase
  option over 52,5 liters per second that correspond to a water right that belong
  to Lumina, which water is yielded from a well of 57_meters depth located inside
  El Fuerte Estate, consumable underground water right, of permanent and continuous
  exercise by a volume of 67,5 liters per second, which title is registered under
  Rio Escondido name at page 32 overleaf, number 20 of the Water Property Registry
  of the Real Estate Custodian of Copiapó, corresponding to the year 2004
  (hereinafter Well C). Over this Well C, El Fuerte and Rio Escondido celebrated
  a promise to purchase agreement by means of public deed dated and granted in
  this day and Notary's office, digest number 16.499 -2005, by which Rio Escondido
  promised to transfer 15 liters

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per second from Well C to El Fuerte once all the mortgages and
  the prohibition that burden Well C are risen.

In addition, Lumina is the owner of the mining project called
  Regalito (hereinafter referred to as Regalito Mine). In order to develop Regalito
  Mine, Lumina needs to drive the volume yield from the referred water rights,
  which extracting points are located inside El Fuerte Estate.

SECOND: Easements.Hereby Sociedad Agrícola El Fuerte Limitada, represented by Mario José
  Luis Holvoet Castillo, in its condition of owner of El Fuerte Estate individualized
  in the previous clause and according to the pertinent norms contained in the
  Chilean Water Code and Civil Code, grants in favor of Lumina the following easements:

a) Voluntary and perpetual occupation easement in order to allow
  Lumina the occupation of area inside El Fuerte Estate referred to in Annex 1
  and 2 of this instrument, which duly signed by the parties is notarized herewith,
  so the latter can install in the servant estate the hydraulic and electric systems
  and other facilities necessary to operate and to protect the wells individualized
  in previous clause and to build the necessary facilities to protect such wells.

b) Voluntary and perpetual aqueduct easement in order to allow
  Lumina the construction of aqueduct systems, tubes and channels in the area
  inside EL Fuerte Estate individualized in Annex 1 and 2 hereof, and to drive
  the yielded water from the wells referred to in previous clause or the ones
  that Lumina will drill inside the occupation area to benefit Regalito Mines
  work, which belongs to Lumina. The easement includes the right to construct
  facilities of any nature for the assembly and support of the pipes that will
  drive the yielded water, as well as the necessary facilities to protect them.

c) Voluntary and perpetual right of way easement in order to
  allow Lumina free and easy access to El Fuerte Estate, in any type of vehicles,
  for the construction, maintenance and

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exercise of the occupation and aqueduct easements already individualized.
  The right of way easement that is granted herein will include a land strip in
  the form individualized in Annex 1 and 2 hereof.

d) Voluntary and perpetual electrical pole and electric transmission
  easement in order to allow Lumina to pass through El Fuerte Estate with electrical
  lines and its poles that will be necessary for the electrification of the pumps
  and its infrastructure, everything in the way that is stated in Annex 1 and
  2 hereof.

THIRD: Easement Use Conditions.Lumina will have to use the area specified in Annex 1 and 2 properly and
  only for the aims authorized herein, with strict attachment to terms of this
  instrument and to the legal and regulatory norms currently in force.

Lumina is already authorized to build the pipe systems and channels
  that are necessary, at its cost and in the way is more comfortable for its exercise.
  As well, it is authorized in order to make all type of works in the wells individualized
  in the previous clause first as well as to change the location of the wells
  as long as they are located within the area identified in Annex 1 and 2 hereof.

FOURTH: New Water Rights.The easements already individualized will be able to be used to yield and
  to drive volume coming from the water right previously referred as Well C that
  Lumina has a fist option to acquire. This well and its complementary installation
  are already individualized in Annex 1 and 2 hereof.

FIFTH: Dominant and Servant Estates.For all the legal effects, El Fuerte Estate referred to in previous clause
  first will be considered the servant estate and Regalito Mine that belongs to
  Lumina will be considered the dominant estate and the volume coming from the
  water rights already individualized in previous clause first will be yield in
  its benefit.

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SIXTH: Indemnification.The parties agree as unique indemnification for all the damages caused to
  the servant estate by the voluntary occupation, aqueduct, right of way and electric
  line easements established herein over the real estate individualized in previous
  clause first to benefit Regalito Mine amounts to $325.000 dollars, amount that
  Lumina pays to El Fuerte as follow:

| | a) | With the amount of $200.000 dollars that Lumina pays
        in cash in this act to El Fuerte, stating the latter that he receives
        this amount, completely and to its whole and total satisfaction, by submitting
        Lumina a cheque to the Notary that authorizes this deed, with the instruction
        to deliver it to El Fuerte once this easement agreement is registered
        under Luminas name before the Real Estate Registrar of Copiapó.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| | b) | With the amount of $125.000 dollars that Lumina will
        pay to El Fuerte in or before the term of 1 year counted from the date
        of this agreement                                                                                                                                                                                                                                                                                                         

In addition, and only if El Fuerte does not acquire the referred
  15 liters per second from Well C, due to the non-celebration of the purchase
  promised by virtue of the promise to purchase agreement referred to in clause
  first above, Lumina will transfer to El Fuerte 15 liters per second from Well
  B, in the same price and with the same terms stated in the mentioned promise
  to purchase agreement. The said transference will be celebrated within the term
  of 30 days counted from the date that it is certain that the purchase agreement
  will not be celebrated or within the term of 21 months from this date if at
  that time it is still pending the celebration of the purchase agreement due
  to the un-fulfillment of the condition to enter into that agreement. The parties
  agree that this indemnification includes damages that will take place as a result
  of the acquisition from Lumina of the Well C to which it has a first purchase
  option, water right that was already individualized in previous clause first
  and in Annex 1 and 2 hereof.

SEVENTH: Delay, Lack of Payment and Actions
  Waiver.

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7.1In case Lumina delays the payment of the installment
  set forth in previous clause letter b) or when applicable Lumina delays the
  transfer of the water rights referred above, El Fuerte shall provide written
  notice to Lumina who in turn shall have the term of 30 business days to complete
  such payment or transference.

7.2If the term mentioned in the former paragraph is elapsed
  and Lumina does not pay the installment set forth in previous clause sixth above
  or it does not transfer the mentioned 15 liters per second, El Fuerte shall
  only be authorized to claim the resolution of this agreement. In that case,
  this agreement will finish ipso facto and El Fuerte shall have the right to
  keep, as a unique indemnification, any amount received prior to such termination.
  For purposes hereof, the parties hereby agree that all the damages that El Fuerte
  may suffer due to the lack of payment the installment described in letter b)
  of clause sixth above and due to the resolution of this easement, whatever the
  nature, class or amount of the damages El Fuertes may have, shall be always
  equivalent to the currency quantities previously received by him as part of
  this contract. The parties hereby mutually and conventionally appraise said
  damages upon such currency quantities effectively received by El Fuerte prior
  to the letter resolution claim.

7.3 For all pertinent legal effects, El Fuerte hereby
  expressly waives the action to claim the enforcement of this agreement, therefore,
  any Luminas infringement in regards to the timely payment, lack of payment
  of the installments provided in clause sixth above or the non-transference of
  the referred water rights, shall only entitle El Fuerte to claim this agreements
  resolution and the indemnification of any damage in the way referred to in the
  previous section 7.2.

EIGHTH: Authorization.El Fuerte is owner of an underground water right that is yield from a well
  of 20,5 meters depth, from which it is extracted by a volume of 26 liters per
  second, water right that is registered on page 30, number 19 of the Water Property
  Registry of the Custodian of Real Estate of Copiapó, corresponding to the
  year 1997. In the eventuality that by a loss of the volume able to be extracted
  from the referred well, El Fuerte request DGA the transfer of its extracting
  point, Lumina will authorize the location of the new extracting point within
  the protection areas of Wells A, B or C, only if a technical expert emits a
  report that assures

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that the volumes to which Lumina has right from those wells will
  not be affected from the relocation of the extracting point of the El Fuerte
  water right inside the protected areas. The indicated expert will be designated
  in common agreement by the parties within the term of 30 days counted from the
  date in which Lumina receives by written the request of authorization from Lumina
  of the extracting point of relocation. If the referred term is elapsed in more
  than 5 days, without the parties have reached an agreement in the designation
  of the technical expert, this one will be designated by the president ofJunta de Vigilancia del Rio Copiapo y sus Afluentes, expert that in any
  case will have at least the professional title of hydraulic engineer.

NINTH: Arbitration.Any difficulty or controversy that may arise between the contracting parties
  regarding the application, interpretation, duration, validity or execution of
  this agreement or any other controversy regarding it, will be subject to arbitration,
  in accordance with the current Arbitration Procedural Regulations of the Arbitration
  and Mediation Center of Santiago. The parties grant irrevocable special power
  to Santiago's Chamber of Commerce, so that, upon written request from any of
  them, designate an arbitrating arbitrator from the members of the arbitration
  body of Arbitration and Mediation Center of Santiago, submitting it in this
  case to the procedure established by the Regulation of said Center, which evidenced
  through public deed dated December 10, 1992, executed in the Public Notary for
  Santiago of Mr. Sergio Rodríguez Garcés and to its subsequent amendments,
  that the parties declare to know and accept. Against the arbitrator's resolutions
  no appeals will be filed, for which reason the parties expressly waive them,
  including those of complaint and cassation.

The arbitrator is specially empowered to settle any matter related
  with his competence and/or jurisdiction.

TENTH: Miscellaneous.10.1. Obligatory Contract. This agreement is binding and compulsory
  upon the parties and will operate in their benefit thereof.

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10.2. Applicable Law. The present contract is execute
  and governed by the laws of the Republic of Chile.

10.3. Domicile.For all purposes hereof, the parties hereto
  set their domicile in the city of Santiago.

10.4. No Third Party Beneficiary Rights. This agreement
  is for the benefit of the parties and their respective successors and assignees
  only, and is not intended to create third party beneficiary rights in any other
  party or in any government, governmental organization or agency.

ELEVENTH: Expenses.Any notary and registrar fees arising from this deed will be equitably borne
  by both parties.

TWELFTH: Power of Attorney.The bearer of an authorized copy hereof is empowered to request any appropriate
  registrations, sub-registrations, cancellations and annotations at the competent
  Real Estate Custodians Office.

In addition, the parties hereto empower any one of Messrs. Carlos
  Pérez-Cotapos Subercaseaux, Gonzalo Grez Jordán, Jerónimo Carcelén
  Pacheco, Carlos Prat Guarachi and Rodrigo Fernández Robinson, so that any
  one of them, jointly with Mr. Octavio Pedreros Toro, may execute rectifying
  or clarifying deeds as necessary for the correct individualization and registration
  of the Property under Luminas name, and to carry out any necessary acts
  or registrations arising herefrom, notwithstanding any quoting mistake related
  to registrations of same Registrar, or any error in identifying the Property
  that is object of this purchase agreement, that the parties may have made, exclusively
  considering that the will of the parties hereto is that as expressed in the
  different clauses and stipulations herein contained.

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LEGAL CAPACITIES.The legal capacity of Mr. Mario José Luis Holvoet Castillo to act on
  behalf of SOCIEDAD AGR¥COLA EL FUERTE LIMITADA is stated on the public
  deed dated ____ subscribed before the Public Notary of __________ Mr. ___________

The legal capacity of John Joseph Selters to act on behalf of
  MINERA LUMINA COPPER CHILE S.A. is stated on the public deed dated September
  5, 2003 subscribed before the Public Notary of Santiago, Mr. Eduardo Avello
  Concha.



SOCIEDAD AGRÍCOLA EL FUERTE LIMITADA



MINERA LUMINA COPPER CHILE S.A.

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