1 to the Notary You Are Hereby Requested to Record a Real And

To the Notary

You are hereby requested to record a Real and Personal Property Security Contract in your Registry of Public Deeds, entered into as party of the first part, in its capacity as the party furnishing said security, by the DOE RUN PERU S.R.L. company, with R.U.C. (Single Taxpayer Registry) No. 20376303811, domiciled at Avenida Víctor Andrés Belaúnde No. 147, Torre Real Tres, Piso 9, Centro Empresarial, San Isidro District, Province and Department of Lima, duly represented by its General Manager, Mr. Juan Carlos Huyhua Mamani, an engineer, identified with D.N.I. (National Identity Card) No. 10495170, and Mr. ______, identified with D.N.I. No. ______, pursuant to powers of attorney recorded in Entries ______and ______of Certificate No. 11015369 of the Public Registries of Lima, which shall hereinafter be referred to as DOE RUN PERU, and as party of the second part, as the beneficiary of the security, the MINISTRY OF ENERGY AND MINES, with R.U.C. No. 20131368829, domiciled at Avenida Las Artes Sur No. 260, San Borja District, Province and Department of Lima, duly represented by the Director General of Mining, Mr. Víctor Manuel Vargas Vargas, an engineer, identified with D.N.I. No. 08212064, who acts in conformity with the powers conferred in Ministerial Resolution No. ______, of ______, ____, which shall hereinafter be referred to as THE MINISTRY; with the participation in the capacity of depositary of Mr. Juan Carlos Huyhua Mamani, an engineer, identified with D.N.I. No. 10495170, domiciled for the intents and purposes of this contract at ______, pursuant to the following terms and conditions:

FIRST: RECITALS

1.1 By Directorial Resolution No. 334-97-EM/DGM of October 16, 1997, THE MINISTRY’s Directorate General of Mining (hereinafter THE DGM) approved the Environmental Remediation and Management Plan for the La Oroya Metallurgical Complex (hereinafter the LA OROYA PAMA).

1.2 By Supreme Decree No. 046-2004-EM of December 23, 2004, mining entities were authorized to apply to THE MINISTRY’s Directorate General of Environmental Affairs (hereinafter THE DGAAM) for an exceptional extension of the term for execution of one or more projects of approved PAMAs.

1.3 On December 20, 2005 DOE RUN PERU applied to THE DGAAM, through Petition No. 1579697, for an extension of the La Oroya Metallurgical Complex’s “Sulfuric Acid Plants” Project in conformity with Art. 2 of Supreme Decree No. 046-2004-EM

1.4 DOE RUN PERU’s application for an extension was approved by Ministerial Resolution No. 257- 2006-MEM/DM of May 29, 2006, and the final date for completion of the “Sulfuric Acid Plants” Project of the

Environmental Remediation and Management Plan for the La Oroya Metallurgical Complex was stipulated as October 31, 2009.

1.5 By Law No. 29410 of September 25, 2009 the Congress of the Republic declared the decontamination of the environment in the city of La Oroya, Junín Department, to be a matter of public need and utility, and of high-priority social interest, and extended the term for financing and concluding the “Sulfuric Acid Plant and Modification of the Copper Circuit” Project for the La Oroya Metallurgical Complex, hereinafter THE PROJECT, as prescribed in Art. 2 of Law No. 29410. Article 3 of said Act likewise requires DOE RUN PERU to secure its full compliance with the terms, undertakings, and investments provided for in Art. 2, in accordance with the terms and conditions adopted by THE MINISTRY.

1.6 By Supreme Decree No. 075-2009-EM of October 28, 2009, Law No. 29410 was regulated and it was stipulated in Section 5.1 (ii) of Art. 5 – Security, that DOE RUN PERU was required to furnish security covering not less than one hundred per cent (100%) of THE PROJECT’s cost in favor of THE MINISTRY.

1.7 DOE RUN PERU has temporarily suspended its operations and the due execution of THE PROJECT, declaring that it has been adversely affected by the international financial crisis of 2008 with worldwide effects and the decline of mineral prices which said worldwide crisis provoked.

SECOND: THIS CONTRACT’S PURPOSE AND OBJECT

The parties hereby stipulate that this agreement’s purpose is to comply with Section 5.1 (ii) of Art. 5 of Supreme Decree No. 075-2009-EM. To that end, this contract’s object is for DOE RUN PERU to furnish security in favor of THE MINISTRY (real and personal security as is appropriate and as is prescribed below) covering not less than one hundred per cent (100%) of THE PROJECT’s cost.

Finally, it is specified that the real and personal security, hereinafter THE SECURITY, furnished hereby is intended to secure compliance with the terms prescribed in Law No. 29410, as well as all the obligations, undertakings, and investments pertaining to THE PROJECT, whose execution has been valued at the sum of US$ 163,046,495.08 (One hundred sixty-three million forty-six thousand four hundred ninety-five United States Dollars and 08/100).

The terms, undertakings, and investments provided for in the preceding paragraph and generally in this document comprise DOE RUN PERU’s obligation to obtain financing, put the La Oroya Metallurgical Complex into operation, and complete the construction and start-up of THE PROJECT, which obligations shall hereinafter be referred to as THE SECURED OBLIGATION.

Accordingly, the security furnished may be foreclosed in the event of a default on THE SECURED OBLIGATION, in the following circumstances:

a) If the financing for THE PROJECT or the La Oroya Metallurgical Complex’s commencement of operations have not occurred by the expiration of the term of ten (10) months granted by Law No. 29410.

b) If the construction and start-up of THE PROJECT have not occurred by the expiration of the term of twenty (20) months granted by Law No. 29410.

THIRD: SCOPES OF THE SECURITY FURNISHED PURSUANT TO THIS CONTRACT

The parties agree to specify that THE SECURITY (real and personal) furnished in this act, as prescribed in the fourth clause, shall reach and/or encompass compliance with Law No. 29410, its regulations (Supreme Decree No. 075-2009-EM), and/or their amendments.

THE SECURITY which is furnished in this act shall remain in force until the fulfillment of all the obligations, undertakings, and investments provided for in THE PROJECT has been verified, and it is specified that said security shall cover the possibility of a total default or a partial default and/or a tardy and/or defective fulfillment of the obligations prescribed in the second clause of this contract.

THE SECURITY which is furnished pursuant to this contract may be replaced as is provided for in Section 5.3 of Article 5 of Supreme Decree No. 075-2009-EM.

The amount of the encumbrance includes any judicial and/or extrajudicial expense, court cost, and other cost arising from a potential foreclosure of the security furnished pursuant to this instrument.

FOURTH: THE AMOUNT OF THE ENCUMBRANCE

DOE RUN PERU declares that it furnishes real and personal security in favor of THE MINISTRY for the fulfillment of the obligations mentioned in the second and third clauses of this contract, in an amount totaling up to

US$ 250,000,000.00 (Two hundred fifty million United States Dollars and 00/100).

An express record is made of the fact that said sum is the total amount of the encumbrance for which THE SECURITY (real and personal security) is furnished.

Accordingly, the sum of US$ 250,000,000.00 (Two hundred fifty million United States Dollars and 00/100) shall be reflected as the encumbrance in both the personal security and each of the mortgaged real properties.

FIFTH: PERSONAL SECURITY

5.1 In conformity with the second and third clauses of this contract, DOE RUN PERU hereby furnishes a FIRST-TIER PERSONAL SECURITY in favor of THE MINISTRY in the amount stipulated in the fourth clause, above. Said security has the status of open personal security regulated by the Personal Security Act, Law No. 28677.

The parties stipulate that the reference value of the personal properties furnished as security shall be the figure appearing as CURRENT VALUE for each of the personal properties in ANNEX A – PERSONAL PROPERTIES and ANNEX A-1 – VEHICLES, of COMMERCIAL APPRAISAL 2010-070/TIP, submitted by DOE RUN PERU together with Petition No. 1990891 of May 14, 2010, totaling US$ 550,916,643.81 (Five hundred fifty million nine hundred sixteen thousand six hundred forty three United States Dollars and 81/100).

Without prejudice thereto, THE MINISTRY reserves the right, if it is reasonable to do so, to perform commercial appraisals updated every six months of each of the personal properties furnished as security, being authorized to charge DOE RUN PERU for all such expenses.

5.2 All the personal properties furnished as personal security are included and itemized in ANNEX A – PERSONAL PROPERTIES and ANNEX A-1 – VEHICLES of COMMERCIAL APPRAISAL 2010-070-TIP, which is an integral part of this contract. All of them are fixed assets of the La Oroya Metallurgical Complex, owned by DOE RUN PERU and located in La Oroya District, Yauli Province, Junín Department; they encompass the Copper Circuit, the Lead Circuit, the Zinc Circuit, and the Precious Metal Recovery Plant, including all the components of each such circuit.

5.3 DOE RUN PERU declares that there are no encumbrances, charges, and/or any kind of judicial and/or extrajudicial measures over the personal properties furnished as personal security in this act which might impair its ability

to furnish personal security and/or impair the first tier of registry priority which said security must have, with the exception of the vehicles over which there are liens.

Accordingly, if for any reason the personal security furnished in this act does not come to have the first rank of registry priority, with the exception of encumbered or unencumbered vehicles, or if it cannot be definitively registered for a reason attributable to DOE RUN PERU, that fact shall constitute grounds for THE MINISTRY to rescind this contract as a matter of law and in conformity with Article 1430 of the Civil Code, if DOE RUN PERU fails to cure it and/or fails to replace the personal security furnished in this act with a property of equal value and to THE MINISTRY’s full satisfaction within a term of fifteen (15) days from the date on which said situation is communicated to it. In that event, pursuant to Article 1430 of the Civil Code, the contract shall be rescinded as a matter of law if THE MINISTRY communicates its will to exercise this rescission clause within the aforementioned fifteen (15) day term.

5.4 The parties designate Mr. Juan Carlos Huyhua Mamani, an engineer, whose legal identification appears in this contract’s introduction, as the DEPOSITARY; he takes part herein at no charge, assuming the civil and/or criminal liabilities for acting fraudulently or with gross negligence pursuant to law and this document severally with DOE RUN PERU. The position of DEPOSITARY shall remain in being throughout this contract’s term.

It is specified that the location of the personal properties furnished as personal security is the La Oroya Metallurgical Complex. For operating reasons on the company’s part, certain equipment and vehicles may be temporarily moved to another production unit belonging to the same company.

The DEPOSITARY shall be responsible for maintaining custody of each and all of the personal properties comprising this personal security with the appropriate ordinary diligence, being liable for their loss or deterioration only in the event of grave fault or for their utilization in a manner other than the company’s regular or ordinary use.

SIXTH: FORECLOSURE OF THE PERSONAL SECURITY IN CASE OF DEFAULT

If a default on THE SECURED OBLIGATION prescribed in the second clause is found to exist, THE MINISTRY shall be entitled to proceed to extrajudicial foreclosure of the personal security furnished hereby, through a direct sale of the personal properties encompassed in

5 this contract, proceeding in conformity with Supreme Decree No. 075-2009-EM.

Said foreclosure shall be carried out extrajudicially and shall be subject to the provisions of the Personal Security Act, Law No. 28677, and in particular Art. 47 thereof. To that end, the parties stipulate that:

6.1 DOE RUN PERU confers an irrevocable power of attorney on ______, identified with D.N.I. No. ______and domiciled at ______, Lima, hereinafter THE ATTORNEY IN FACT, enabling the latter to realize/divest and formalize the extrajudicial sale of the real properties furnished as personal security.

To that end and to carry out the transfer or disposal of the personal properties subject to this personal security through said extrajudicial foreclosure arrangement, THE ATTORNEY IN FACT shall be fully empowered to sign the public and private documents which may be necessary for the foreclosure and transfer of the properties, as well as any legal acts which may be necessary for their transfer, with no reservation or limitation whatsoever. In this respect, DOE RUN PERU confers express and sufficient authority on THE ATTORNEY IN FACT for him/her to perform said acts of disposition in such a way that, in the event of an extrajudicial foreclosure (direct sale) of the personal properties furnished as personal security in this act, he/she may transfer ownership of said properties to the persons who obtain them in said procedure.

6.2 For purposes of extrajudicial foreclosure of the personal security, the parties stipulate that THE ATTORNEY IN FACT shall require only the following to exercise the aforementioned power of attorney for divestiture:

1) For THE MINISTRY to inform him/her of DOE RUN PERU’s default status and inform him/her that he/she may proceed to the extrajudicial sale of the personal properties furnished as personal security because ten (10) business days have elapsed in the absence of a response by DOE RUN PERU to THE MINISTRY’s notarially delivered demand for fulfillment of the secured obligations with the personal security furnished in this act.

Said request for extrajudicial foreclosure may be, at THE MINISTRY’s election, for all or a portion of the personal properties furnished as security in this act.

2) THE MINISTRY must attach the notarial letter it shall have sent DOE RUN PERU to the aforementioned communication, to make a record of the situation(s) of default and to demand that it

fulfill the breached obligation(s) within the ten (10) business days after receipt of said demand.

3) THE ATTORNEY IN FACT must proceed to the extrajudicial sale of the personal properties furnished as personal security immediately upon receipt of THE MINISTRY’s request with the attached documentation stipulated in the preceding section. The only circumstances in which THE ATTORNEY IN FACT may halt said extrajudicial sale shall be: (a) the existence of a court order and/or arbitral award which prevents him/her from carrying out such extrajudicial sale; (b) verification that the ten (10) business days mentioned in this provision have not elapsed since THE MINISTRY made its demand on DOE RUN PERU; and (c) THE MINISTRY’s express request for a suspension or interruption of said extrajudicial foreclosure.

In this respect, the parties make a record of the fact that THE ATTORNEY IN FACT shall be personally responsible for any damages which may be inflicted on either party by default on the obligations prescribed in this clause, and likewise specify that if THE ATTORNEY IN FACT repeats his/her default THE MINISTRY may subrogate itself through a notarial communication which it must send, informing him/her of the exercise of said authority. Said communication must be sent with a copy to DOE RUN PERU. The exercise of this power of substitution shall not impair the legal liabilities which THE ATTORNEY IN FACT may have incurred in the performance of his/her position.

6.3 To determine the sale price for the personal properties in the event of an extrajudicial foreclosure, THE ATTORNEY IN FACT shall retain two (2) appraisers registered with the REPEV and/or the Superintendency of Banking and Insurance (SBS), in accordance with THE MINISTRY’s instructions. Said appraisers shall perform the appraisal of the personal goods subject to this security and shall issue a single report to determine the value thereof; the appraisers designated (or alternatively, THE ATTORNEY IN FACT) must send copies of the final appraisal report to DOE RUN PERU and to THE MINISTRY.

If THE MINISTRY or DOE RUN PERU consider that the appraisal does not reflect market reality, it may order a new appraisal to be performed, a single time, by another appraiser registered with the REPEV and/or the Superintendency of Banking and Insurance (SBS), and the highest figure must be deemed to be the final appraisal.

The appraisers’ fees, as well as any other duly documented expenses, shall be paid by DOE RUN PERU.

6.4 For purposes of the extrajudicial foreclosure of the personal properties subject to this security, THE ATTORNEY IN FACT must make certain that the sale price is no lower than two thirds (2/3) of the appraised value established in the foregoing procedure.

If upon the expiration of six (6) months from the commencement of the extrajudicial sale procedure, after the appraised value of the secured personal properties was established, there are no parties interested in acquiring the said properties in conformity with the rules stipulated above, THE MINISTRY may acquire said properties as payment in kind.

6.5 DOE RUN PERU declares that, during the extrajudicial foreclosure of the personal properties subject to this personal security, neither it nor its shareholders or companies belonging to its corporate group may submit bids for acquisition of the personal properties subject to extrajudicial foreclosure.

6.6 DOE RUN PERU may replace the personal security established over the personal properties with a bank or other type of security fully satisfactory to THE MINISTRY.

6.7 If a default on THE SECURED OBLIGATION pursuant to the second clause is determined, upon the expiration of the thirty (30) months prescribed in Law No. 29410, THE MINISTRY shall be entitled to proceed to the extrajudicial foreclosure of the personal security furnished hereby.

SEVENTH: REAL OR MORTGAGE SECURITY

7.1 DOE RUN PERU is the owner of each and all of the real properties itemized in “ANNEX B,” which is an integral part of this contact.

7.2 In conformity with the second and third clauses of this contract, DOE RUN PERU furnishes a FIRST MORTGAGE in favor of THE MINISTRY for up to the sum specified in the fourth clause thereof, over each and all of the real properties listed and described in “ANNEX B,” which is an integral part of this instrument, comprised of buildings, lands, and processing concessions.

The mortgage over the real properties provided for in this clause encompasses the land, the existing constructions and those which may be built in the future, their parts, accessories, and installations, their entrances, exits, components, and in general everything which may pertain to each of said mortgaged real properties in fact or at law, with no reservation or limitation whatsoever; the fruits

and improvements which may be introduced thereinto are likewise encumbered in favor of THE MINISTRY, with no reservation or limitation of any kind.

7.3 DOE RUN PERU represents in regard to said real properties furnished as security over which there are encumbrances or charges, that they do not limit or restrict DOE RUN PERU’s right to furnish them as security.

7.4 If DOE RUN PERU divests or encumbers the real properties furnished as security in such a way as to substantially impair the quality of the security furnished to THE MINISTRY, the latter is irrevocably empowered to declare all the terms of the secured obligations stipulated in the second and third clauses to have expired. Similarly, if the mortgage’s registration has not been formalized within a term of 60 (sixty) business days after signing of the public deed, for reasons attributable to DOE RUN PERU, THE MINISTRY may declare all the terms for the obligation, whether due or not yet due, to have expired.

7.5 The parties stipulate that the reference value of the real properties furnished as security shall be the one appearing as the CURRENT VALUE for each real property in “ANNEX B” – REAL PROPERTIES in COMMERCIAL APPRAISAL 2010-070/TIP, submitted by DOE RUN PERU together with Petition No. 1990891 of May 14, 2010, totaling US$ 59,960,777.75 /(Fifty- nine million nine hundred sixty thousand seven hundred seventy-seven United States Dollars and 75/100).

Without prejudice thereto, THE MINISTRY reserves the right, if it is reasonable, to perform updated commercial appraisals of each of the real properties furnished as security, being authorized to charge DOE RUN PERU for all such expenses.

Accordingly, in the unlikely case of foreclosure due to breach of DOE RUN PERU’s secured obligations, Articles 720 and following of the Civil Procedure Code and the pertinent legislation shall be applicable, wherefore at the appropriate stage of the procedure the judge shall order an appraisal of the real properties in order to proceed to their potential judicial auction in accordance with the legally regulated procedure.

7.6 The mortgage shall remain in force until the fulfillment of all of DOE RUN PERU’s secured obligations.

7.7 DOE RUN PERU may replace the mortgage over the real properties through a banking or other kind of security, expressly accepted by THE MINISTRY.

7.8 If a default on THE SECURED OBLIGATION pursuant to the second clause is determined, upon the expiration of the thirty (30) months prescribed in Law No. 29410 THE MINISTRY shall be

entitled to proceed to the judicial foreclosure of the real or mortgage security furnished hereby.

EIGHTH: INSURANCE

DOE RUN PERU undertakes to keep the real and personal properties furnished to THE MINISTRY as security permanently and sufficiently insured, and undertakes to purchase insurance from a first-tier insurance company fully satisfactory to THE MINISTRY, to which the respective insurance policy must be endorsed.

The cost of said insurance shall be borne by DOE RUN PERU. If the purchase and/or renewal of the insurance is not evidenced within a term of thirty (30) business days from the signing of the public deed giving rise to this memorandum, THE MINISTRY may purchase it in its own name and shall proceed to charge its cost to DOE RUN PERU’s account.

If the insurance policy provided for in the preceding paragraph expires during the term of THE SECURITY (both real and personal) furnished in this act, DOE RUN PERU undertakes to renew said insurance policy, and may not reduce the insured amounts or modify the policy’s conditions without THE MINISTRY’s prior written consent. In the event of a breach of this renewal obligation, THE MINISTRY may carry out said renewal and shall collect its cost from DOE RUN PERU.

NINTH: CANCELLATION OF SECURITY

Upon the fulfillment of the secured obligations, THE MINISTRY undertakes to cancel the real (mortgage) and personal security furnished pursuant to this contract within a term of ninety (90) calendar days from the date on which the fulfillment thereof is evidenced.

TENTH: ASSIGNMENT OF RIGHTS

DOE RUN PERU expressly agrees that all the rights generated by virtue of this contract may be assigned in whole or in part by THE MINISTRY to any other State entity without the need for DOE RUN PERU to take part in said assignment. A written communication thereof to DOE RUN PERU shall suffice to establish the assignment’s legal validity and efficacy.

ELEVENTH: THIS CONTRACT’S VALIDITY

The parties and their representatives who sign this document declare their satisfaction with the terms and conditions stipulated in this

10 contract, acknowledging its validity and that the agreements herein reflect the irrevocable will explicitly expressed by them. They likewise undertake not to commence any kind of litigation or judicial procedure intended to question the agreements adopted in this contract, or to formulate any judicial or administrative aspiration whatsoever related to this contract’s subject matter.

TWELFTH: THE PARTIES’ PREDISPOSITION

The parties and their representatives who sign this document agree that, in addition to the documents cited in the preceding clauses, they will sign any additional documents which may be necessary to achieve this contract’s purposes and objectives. They likewise undertake to have their legal representatives assist any public or private entity to achieve the preceding paragraph’s intent.

THIRTEENTH: EXPENSES

All expenses generated by the public deed to which this memorandum gives rise, including the notarial fees and its registration, shall be borne by DOE RUN PERU.

FOURTEENTH: DOMICILE AND APPLICABLE LEGISLATION

13.1 All matters not provided for by the parties herein shall be subject to the provisions of the Civil Code, the Civil Procedure Code, the General Business Enterprises Act, the Personal Security Act – Law No. 28677-, and other provisions of the Peruvian Legal System insofar as they applicable.

13.2 The parties declare that their domiciles are those which appear in this document’s introduction. Any change or variation therein must be reported in writing not less than thirty (30) calendar days in advance.

FIFTEENTH: DISPUTE RESOLUTION

The parties must make their best efforts to ensure that any disagreement or dispute which may arise as a consequence of this contract, including those related to its nullity or invalidity, is resolved immediately through direct and amicable discussion. In that respect, the parties must attempt to resolve the disputes which may arise within a term not exceeding fifteen (15) business days, which term may be extended by express agreement of the parties.

If any dispute which arises between the parties in relation to this contract, whether bearing on its execution, construction, legal efficacy and/or validity, or otherwise, cannot be resolved through direct discussion within the term of ten (10) business days subsequent to the time when one of the parties has sent a written claim or questioning to the other, said dispute’s resolution shall be submitted to the authority of the judges of the Superior Court of Lima.

You, the Notary, are requested to insert the legally prescribed clauses and the corresponding inserts, and to convert this memorandum into a public deed.

Lima,

ANNEX B

I. LIST OF BUILDINGS

DOE RUN PERU S.R.L. Properties

No. REAL PROPERTIES REAL ESTATE REGISTRY - SUNARP 1 Located on the left bank of the Mantaro River – La Registration of ownership: Oroya Smelter Sector, La Oroya District, Yauli Entry C-3, Fiche No. 000400, which Province, Junín Department. continues in Electronic Certificate No. 02000279 of the Lands Registry. 2 Lot identified as F-1 Oxygen Plant No. 2, a part of the Registration of ownership: Smelter Sector, located on the right side of the main Entry C00003 of Electronic Certificate access road to the La Oroya Smelter, La Oroya No. 02001113 of the Lands Registry. District, Yauli Province, Junín Department. 3 Real property located on the extension of Av. Horacio Registration of ownership: Zevallos between the Cascabel Bridge and the La Entry G00001 of Electronic Certificate Oroya Bridge, left bank of the Mantaro River, La No. 11003773 of the Lands Registry. Oroya District, Yauli Province, Junín Department. 4 Urban land identified as Milagro de Fátima Club Registration of ownership: Peruano Educational Center, which had been a part of Entry C-2, Fiche No. 007427, which the Huaymanta Mining Reserve, La Oroya District, continues in Electronic Certificate No. Yauli Province, Junín Department. 02004141 of the Lands Registry. 5 Real property located in La Oroya at Av. Horacio Registration of ownership: Zevallos No. 422-424, La Oroya District, Yauli Entry G00001 of Electronic Certificate Province, Junín Department. No. 11003772 of the Lands Registry. 6 Real property located in Sector No. 1 of the Huaymanta Registration of ownership: Urban Land, La Oroya District, Yauli Province, Entry G00001 of Electronic Certificate Junín Department. No. 11001138 of the Lands Registry. 7 Urban land in Sector 02, Sub-lot 3, located at Avenida Registration of ownership: Horacio Zeballos Gámez No. 402, La Oroya District, Entry G00001 of Electronic Certificate Yauli Province, Junín Department. No. 11015607 of the Lands Registry. 8 Real property located in the home of Wilson A and B Registration of ownership: Sector, La Oroya District, Yauli Province, Junín Entry C-1 of Registry Fiche No. 00302 Department. B-41 of the Lands Registry.

9 Real property located in Lot “B” of the La Oroya Registration of ownership: Station yard, La Oroya District, Yauli Province, Entry C00001 of Electronic Certificate Junín Department. No. 02004363 of the Lands Registry. 10 Real property located in Huaymanta, La Oroya Registration of ownership: District, Yauli Province, Junín Department. Entry C-1 of Fiche No. 00302 B-13 of the Lands Registry. 11 Real property located on the urban land identified as Registration of ownership: Sector 04 Sub-lot B, behind Calle Lima and Barrio San Entry G00001 of Electronic Certificate Juan de La Oroya, La Oroya District, Yauli Province, No. 11015651 of the Lands Registry. Junín Department. 12 Real property located in the Railway Residential Registration of ownership: Sector, Av. Horacio Zevallos s/n, La Oroya District, Entry G00001 of Electronic Certificate Yauli Province, Junín Department. No. 11003504 of the Lands Registry. 13 Real property located in the land adjoining the Registration of ownership: Municipal Stadium, an integral part of the Huaymanta Entry C-3, Fiche No. 000399, which Mining Reservation, on the access and Santa Rosa continues in Electronic Certificate No. Canal maintenance road, La Oroya District, Yauli 02000278 of the Lands Registry. Province, Junín Department. 14 Real Property located in the Los Plomos Residential Registration of ownership: Sector, La Oroya District, Yauli Province, Junín Entry G00001 of Electronic Certificate Department. No. 11003403 of the Lands Registry. 15 Real property located in the Sub-lot identified as the Registration of ownership: former ENAFER School, 1st Part, in La Oroya Nueva, Entry C00002 of Electronic Certificate left side of the Lima-Huancayo Highway, facing Km. No. 11001336 of the Lands Registry. 220+339 and 220+279, La Oroya District, Yauli Province, Junín Department. 16 Real property located in the Sub-lot identified as the Registration of ownership: former ENAFER School, 2nd Part, facing Km. 220+341 Entry C00002 of Electronic Certificate and 220+379, in La Oroya Nueva, left side of the Lima- No. 11001338 of the Lands Registry. La Oroya Highway, La Oroya District, Yauli Province, Junín Department. 17 Real property located in Apartment No. 289, an integral Registration of ownership: part of the subdivision of Lots a-C of Sector 5, La Entry C00002 of Electronic Certificate Oroya District, Yauli Province, Junín Department. No. 11001337 of the Lands Registry. 18 Real property located in Apartment No. 289, an integral Registration of ownership: part of the subdivision of Lots A-C of Sector 5, La Entry C-2, Fiche No. 003429, which Oroya District, Yauli Province, Junín Department. continues in Electronic Certificate No. 02001897 of the Lands Registry.

19 Real property located on the Central Highway facing Registration of ownership: the detour providing access to the Huayhuanta Entry C-4, Fiche No. 000305, which Refinery, La Oroya District, Yauli Province, Junín continues in Electronic Certificate No. Department. 02000229 of the Lands Registry. 20 Real property located on the right side of the Central Registration of ownership: Highway from Lima to Huancayo, facing the Entry G00001 of Electronic Certificate CENTROMIN PERU S.A. copper and lead refinery No. 11003092 of the Lands Registry. between Km. 220+313 and Km. 220+412 of the Lima- Huancayo central railroad – Area of Sector C.E.F. Santa Rosa, La Oroya District, Yauli Province, Junín Department. 21 Real property located in Sector “C” of Santa Rosa and Registration of ownership: Esmeralda, on the side of the central highway from Entry G00001 of Electronic Certificate Lima to Huancayo, Km. 220+213 M on the Lima to No. 11003223 of the Lands Registry. Huancayo rail line, La Oroya District, Yauli Province, Junín Department. 22 Real property located in the copper and lead Refinery, Registration of ownership: La Oroya District, Yauli Province, Junín Entry C00001 of Electronic Certificate Department. No. 02000737 of the Lands Registry. 23 Real property located on the right side of the central Registration of ownership: highway from Lima to Huancayo, facing the Entry G00001 of Electronic Certificate CENTROMIN PERU S.A. copper and lead refinery No. 11003093 of the Lands Registry. between Km. 219+601 and 220+113 of the Lima- Huancayo railroad – Buenos Aires Sector, belonging to the Hacienda Oroya Huaymanta Hacienda estate, in the jurisdiction of La Oroya District, Yauli Province, Junín Department. 24 Real property located on the land at the rear of the Registration of ownership: Buenos Aires campgrounds adjoining the copper and Entry C-3, Fiche No. 007710, which lead refinery, La Oroya District, Yauli Province, continues in Electronic Certificate No. Junín Department. 02004365 of the Lands Registry. 25 Real property located in the lot identified as alongside Registration of ownership: the former ENAFER – HUAYMANTA School, La Entry C00001 of Electronic Certificate Oroya District, Yauli Province, Junín Department. No. 11000045 of the Lands Registry. 26 Real property located in Sector AL-1, free area, Buenos Registration of ownership: Aires y Huampani S.E., between the Buenos Aires and Entry C-2, Fiche No, 002148, which Huampani residential campgrounds, La Oroya continues in Electronic Certificate No. District, Yauli Province, Junín Department. 02001094 of the Lands Registry. 27 Real property located in the land on the left side of the Registration of ownership: Lima-La Oroya-Huancayo central highway, facing the Entry G00001 of Electronic Certificate Huaymanta construction yard of CENTROMIN PERU No. 11003112 of the Lands Registry. S.A., La Oroya District, Yauli Province, Junín Department. 28 Real property located in the Huaymanta Construction Registration of ownership: Sector, in La Oroya Nueva between the left bank of the Entry G00001 of Electronic Certificate Yauli River and the lefts side of the Lima-Huancayo No. 11003584 of the Lands Registry. central highway, adjacent to the Marcavalle bridge, La Oroya District, Yauli Province, Junín Department.

29 Real property located on the land along the right side of Registration of ownership: the central highway from Lima to Huancayo, facing the Entry G00001 of Electronic Certificate shops, installations, and offices CENTROMIN PERU No. 11003124 of the Lands Registry. S.A. Huaymanta Construction, La Oroya District, Yauli Province, Junín Department. 30 Real property located on the land in Marcavalle, right Registration of ownership: side of the Lima-Huancayo central railroad, facing Km. Entry G00001 of Electronic Certificate 219+187.80 and the overpass over the Lima-Huancayo No. 11003127 of the Lands Registry. central highway, La Oroya District, Yauli Province, Junín Department. 31 Real property facing Km. 219+167 of the Lima-La Registration of ownership: Oroya-Huancayo central railroad, adjoining the facility Entry G00001 of Electronic Certificate of the Yauli-La Oroya White-Collar Employees’ No. 11003130 of the Lands Registry. Union, La Oroya District, Yauli Province, Junín Department. 32 Real property located in Subsector “A” of Sector “F” of Registration of ownership: the subdivision, Sacco District, Yauli Province, Junín Entry C00004 of Electronic Certificate Department. No. 02000734 of the Lands Registry. 33 Real property located in the Block “B” home identified Registration of ownership: with “B-12,” Marcavalle – First Stage housing group, Entry C-5 of Fiche No. 001149, which La Oroya District, Yauli Province, Junín continues in Electronic Certificate No. Department. 02000730 of the Lands Registry. 34 Real property located in Block “H” home identified Registration of ownership: with “H-205,” Marcavalle – First Stage housing group, Entry C-5 of Fiche No. 001150, which La Oroya District, Yauli Province, Junín continues in Electronic Certificate No. Department. 02000731 of the Lands Registry. 35 Real property located in the Huaymanta Wire Sector in Registration of ownership: La Oroya Nueva, on the left bank of the Yauli River, at Entry G00001 of Electronic Certificate the rear of the Copper and Lead Refinery Plant and the No. 11003585 of the Lands Registry. Huaymanta Construction Sector, Santa Rosa de Sacco District, Yauli Province, Junín Department. 36 Real property located in the Huaymanta Housing Registration of ownership: Sector, Santa Rosa de Sacco District, Yauli Province, Entry G00001 of Electronic Certificate Junín Department. No. 11003404 of the Lands Registry. 37 Real property located in the Casas Oroya Cantagayo Registration of ownership: Sector, Lot 2, between the La Oroya-Cerro de Pasco Entry G00001 of Electronic Certificate highway, left side, and the Yauli River, left bank, Santa No. 11003586 of the Lands Registry. Rosa de Sacco District, Yauli Province, Junín Department. 38 Real property located in Lot A, on the right side of the Registration of ownership: La Oroya-Cerro de Pasco highway, Santa Rosa de Entry G00001 of Electronic Certificate Sacco District, Yauli Province, Junín Department. No. 11003257 of the Lands Registry.

39 Real property located in the urban land identified as Registration of ownership: “Sector 10,” at Km. 175+619.64 of the Lima-Cerro de Entry C-2, Fiche No. 003850, which Pasco central highway, Santa Rosa de Sacco District, continues in Electronic Certificate No. Yauli Province, Junín Department. 02002161 of the Lands Registry. 40 Real property located in the lot identified as Parque Registration of ownership: Lavarropa, an integral part of the Predio Tallapuquio Entry C-4, Fiche No. 000354, which land, La Oroya District, Yauli Province, Junín continues in Electronic Certificate No. Department. 02007185 of the Lands Registry. 41 Real property located in Lot of land “A,” Santa Rosa Registration of ownership: de Sacco District, Yauli Province, Junín Entry C00001 of Electronic Certificate Department. No. 02000725 of the Lands Registry. 42 Real property located in Lot of land “B,” Santa Rosa Registration of ownership: de Sacco District, Yauli Province, Junín Entry C00001 of Electronic Certificate Department. No. 02000726 of the Lands Registry. 43 Real property located in the Shincamachay land, Lot Registration of ownership: “A,” an integral part of the Predio Tallapuquio land, Entry C-4, Fiche NO. 000306, which Santa Rosa de Sacco District, Yauli Province, Junín continues in Electronic Certificate No, Department. 02007186 of the Lands Registry. 44 Real property located in Sector 13B Shincamachay, La Registration of ownership: Oroya District, Yauli Province, Junín Department. Entry C-13, Registry Fiche No. 00304 B-7 of the Lands Registry. 45 Real property located in the Residential Mayupampa Registration of ownership: sector, La Oroya District, Yauli Province, Junín Entry G00001 of Electronic Certificate Department. No. 11003088 of the Lands Registry. 46 Real property located in the Sector Residential Chulec Registration of ownership: land, La Oroya District, Yauli Province, Junín Entry G00001, Electronic Certificate Department. No. 11003086 of the Lands Registry. 47 Real property located at Jr. Huancavelica s/n, La Oroya Registration of ownership: Metallurgical Workers’ Union Facility, La Oroya Entry C-3, Fiche No. 001160 of the District, Yauli Province, Junín Department. Lands Registry.

I. LIST OF LANDS

DOE RUN PERU S.R.L. Properties

No. REAL PROPERTIES REAL ESTATE REGISTRY - SUNARP 1 Real property located southeast of the City of La Registration of ownership: Oroya, La Oroya District, Yauli Province, Junín Entry C-4, Fiche No. 000401 of the Department. Lands Registry, which continues in Electronic Certificate No. 02007184 of the Lands Registry. 2 Real property located in the upper part of the Municipal Registration of ownership: Stadium between the access and Santa Rosa canal Entry C-2, Fiche No. 002150, which maintenance road, left side, and the Leoncio Prado continues in Electronic Certificate No. human settlement, La Oroya District, Yauli Province, 02007187 of the Lands Registry. Junín Department. 3 Real property located in Sector AL-4, free area, upper Registration of ownership: part of Calle Lima – Smelter, in the upper part of La Entry C-2, Fiche No. 002151, which Oroya between the Las Mercedes Alto Perú and San continues in Electronic Certificate No. Juan human settlements, La Oroya District, Yauli 02007189 of the Lands Registry. Province, Junín Department. 4 Real property located in Urban Lot No. 2, in the area Registration of ownership: known as “Road to Cushurupampa,” La Oroya, La Entry C-2, Fiche No. 003886, which Oroya District, Yauli Province, Junín Department. continues in Electronic Certificate No. 02002186 of the Lands Registry. 5 Real property located in an integral part of the Registration of ownership: Tallapuquio land, Lots 01 and 03, La Oroya District, Entry C-3, Fiche No. 001155, which Yauli Province, Junín Department. continues in Electronic Certificate No. 02007234 of the Lands Registry. 6 Real property located in the ALT-1 Sector, free area, Registration of ownership: Quebrada Acomachay – Huaynacancha Construction. Entry C-2, Fiche No. 002140, which La Oroya District, Yauli Province, Junín continues in Electronic Certificate No. Department. 02007190 of the Lands Registry. 7 Real property located in the ALT-2 Sector, free area, Registration of ownership: upper part of the Wire Factory – Huaymanta Entry C-2, Fiche No. 002143 of the Campground, in the upper part of the Huaymanta Wire Lands Registry. and Huaymanta Housing Sectors, Santa Rosa de Sacco District, Yauli Province, Junín Department. 8 Real property located in the ALT-3 Sector, free area, Registration of ownership: Quebrada Forbe – Cantagallo, between the A.A.H.H. Entry C-2, Fiche No, 002144 of the Víctor Raúl Haya De La Torre and the Metallurgical Lands Registry. Workers’ Union facility, and the upper part of the Casa Oroya Sector and Cantagallo, Santa Rosa de Sacco District, Yauli Province, Junín Department.

9 Real property located in the lot of rural land that is a Registration of ownership: part of the Mining Reserve, La Oroya District, Yauli Entry C00001, Electronic Certificate Province, Junín Department. No. 11014069 of the Lands Registry. 10 Real property located in an integral part of the Registration of ownership: Condorvado land, Lot No. 01, La Oroya District, Entry C00001, Electronic Certificate Yauli Province, Junín Department. No. 11014070 of the Lands Registry. 11 Real property located in the Chulic Canchán Rústico Registration of ownership: Land, La Oroya District, Yauli Province, Junín Entry G00001, Electronic Certificate Department. No. 11003085 of the Lands Registry. 12 Real property located in the Chulic Canchán Rústico Registration of ownership: Land, La Oroya District, Yauli Province, Junín Entry G00001, Electronic Certificate Department. No. 11003087 of the Lands Registry. 13 Real property located in the Casaracra Mining Reserve, Registration of ownership: La Oroya District, Yauli Province, Junín Entry C-3, Fiche No. 001159, which Department. continues in Electronic Certificate No. 02007182 of the Lands Registry. 14 Real property located in the rural estate known as Registration of ownership: Atocsaico, Tarma District and Province, Junín Entry C-12, Fiche No. 000352, which Department. continues in Electronic Certificate No. 02007183 of the Lands Registry. 15 Real property located on natural pasture and cropland Registration of ownership: in La Oroya, La Oroya District, Yauli Province, Entry C-2, Fiche No. 007002, which Junín Department. continues in Electronic Certificate No. 02007174 of the Lands Registry. 16 Real property located in an integral part of the Quiulla Registration of ownership: land, La Oroya District, Yauli Province, Junín Entry C-3, Fiche No. 001158, which Department. continues in Electronic Certificate No. 11014164 of the Lands Registry. 17 Real property located in Lot B1-F, an integral part of Registration of ownership: the “Huaynacancha” Rural Land, La Oroya District, Entry C-1, Fiche No. 520-PR, which Yauli Province, Junín Department. continues in Electronic Certificate No. 11010496 of the Lands Registry. 18 Real property located in Lot B2-F, an integral part of Registration of ownership: the “Huaynacancha” Rural Land, La Oroya District, Entry C-1, Fiche No. 521-PR, which Yauli Province, Junín Department. continues in Electronic Certificate No. 11010497 of the Lands Registry.

19 Real property located in Lot B3-F, an integral part of Registration of ownership: the “Huaynacancha” Rural Land, La Oroya District, Entry C-1, Fiche No. 522-Pr, which Yauli Province, Junín Department. continues in Electronic Certificate No. 11010498 of the Lands Registry. 20 Real property located in Lot B4-F, an integral part of Registration of ownership: the “Huaynacancha” Rural Land, La Oroya District, Entry C-1, Fiche No. 523-PR, which Yauli Province, Junín Department. continues in Electronic Certificate No. 11010499 of the Lands Registry. 21 Real property located in land identified as “Pampa Registration of ownership: Arena,” an integral part of the Huari Peasant Entry C-1, Fiche No. 526-Pr, which Community’s land, La Oroya District, Yauli continues in Electronic Certificate No. Province, Junín Department. 11010502 of the Lands Registry. 22 Real property located in the Shincamachay security Registration of ownership: area, Paccha District, Yauli Province, Junín Entry C-1, Fiche No. 1434-Pr, which Department. continues in Electronic Certificate no. 11003450 of the Lands Registry. 23 Real property located in the Huachhuacocha Rural Registration of ownership: Area, - Jacahuasi Hamlet, Paccha District, Yauli Entry C00001 of Electronic Certificate Province, Junín Department. No. 11012747 of the Lands Registry.

III. PROCESSING CONCESSIONS GRANTED TO DOE RUN PERU S.R.L.

1. “LA OROYA METALLURGICAL COMPLEX – REFINERY 1 and LA OROYA METALLURGICAL COMPLEX – REFINERY 2” processing concession, with 36.40 hectares and 5.9275 hectares, respectively, located in La Oroya District, Yauli Province, Junín Department.

The processing concession is registered on Fiche No. 1135 (Registry Certificate No. 20003529) of the Mining Rights Registry for Registry Zone No. VIII – Huancayo Office of the SUNARP (National Superintendency of Public Registries).

2. “HUANCHÁN LOT A-ONE, HUANCHÁN LOT B” processing concession for Solid Residue Deposits, with 12.1665 hectares and 2.5685 hectares, respectively (total area of the concession: 14.7350 hectares), located in La Oroya District, Yauli Province, Junín Department.

The solid residue processing concession is registered on Fiche No. 015190 (Registry Certificate No. 20005577) of the Mining Rights Registry for Registry Zone No. VIII – Huancayo Office of the SUNARP.