| Adhesion Contract Registry No.: 0928426-002689/04-14215-11114336FF |
|--------------------------------------------------------------------|

| (1) | Details of Caterpillar: |
|-----|-------------------------|

| a) | It is a business corporation organized under Mexican law, as documented by notarial instrument number 1948 dated October 31, 1995 executed before civil law notary public number 218 in and for Mexico City, Federal District, José Luis Villavicencio Castañeda, registered in the Public Registry of Property and Commerce of Mexico City, Federal District under commercial folio number 204436 dated December 11, 1995, and its corporate domicile is in the city of Monterrey, Nuevo León. |
|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b) | Notarial instrument number 22,157 dated March 30, 2007 executed before civil law notary public number 123 of Monterrey, Nuevo León, Eduardo Manautou Ayala, registered in the Public Registry of Property and Commerce of Monterrey, Nuevo León under commercial folio number 86297*1 certifies the complete amendment of the corporation's articles of incorporation, including the change of corporation type from Special-Purpose Financial Institution to Multiple-Purpose Financial Institution. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| c) | To carry out Finance Lease transactions, as a Non-Regulated Multiple-Purpose Financial Institution, it does not require authorization from the Ministry of Treasury and Public Credit and is not subject to the oversight of the National Banking and Securities Commission. The foregoing is for the purposes of compliance with Article 87-J of the General Special-Purpose Financial Intermediaries and Activities Law. |
|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| d) | Its domicile is: Oficinas en el Parque Torre 2, Boulevard Díaz Ordaz No. 140 Poniente, Piso 9, Colonia Santa María, Monterrey, Nuevo León, C.P. 64650. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| e) | Armando Alonso Rodríguez Chávez has full legal capacity and authority to execute this agreement on its behalf, binding it under the terms hereof, evidencing his capacity through notarial instrument number 22,450 dated May 16, 2007, executed before civil law notary public number 123 in and for Monterrey, Nuevo León, Eduardo Adolfo Manautou Ayala, registered in the Public Registry of Property and Commerce of Monterrey, Nuevo León, under commercial folio number 26297*1, dated June 13, 2007, and such authority has not been revoked or limited in any way. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| f) | It has the following Internet address: http://mxfinance.cat.com. |
|----|------------------------------------------------------------------|

| (2) | Details of Lessee: |
|-----|--------------------|

| 2.1)  | COMPAÑIA MEXICANA DE AVINO SA DE CV. |
|------------|-------------------------------------------|

| a) | It is a business corporation organized under Mexican law, as documented by notarial instrument number 32071 dated September 7th of 1968, executed before civil law notary public number 74 in and for CIUDAD DE MEXICO, DISTRITO FEDERAL, Mr. FRANCISCO VAZQUEZ PEREZ, the first official transcript of which was registered in the Public Registry of Property and Commerce of CIUDAD DE MEXICO, DISTRITO FEDERAL, under number 4045, of book number 3, in section COMERCE. |
|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b) | Its domicile is: street and number: ALONSO DE PACHECO EXT 300 , neighborhood: NUEVA VIZCAYA, DURANGO,DURANGO, postal code: 34080 and its Mexican Tax ID is MMA800926DJ7. |
|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| c) | JOSE CARLOS RODRIGUEZ MORENO has full legal capacity and authority to execute this agreement on its behalf, binding it under the terms hereof, evidencing his capacity through notarial instrument number 13498 dated June 14th 2011, executed before civil law notary public number 8 in and for DURANGO, DURANGO, registered in the Public Registry of Property and Commerce of DURANGO, DURANGO, of Book number 14221*1, , dated June 26th 2011, and such authority has not been revoked or limited in any way. |
|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (4) | Assetssubject to the Lease: |
|-----|-----------------------------|

| EQUIPMENT: HYDRAULIC EXCAVATOR, MAKE: CATERPILLARMODEL 320D , SERIAL No. FAL09803 |
|-----------------------------------------------------------------------------------|

----

| (5) | Ordinary interest rate (annual): |
|-----|----------------------------------|

| (6) | Place and Method of Rent Payment: |
|-----|-----------------------------------|

| a) | Payment in United States Dollars: Deposit to the account 65020343677, Clabe 002580650203436776, at BANAMEX (Banco Nacional de Mexico) , in the city of MONTERREY, NUEVO LEON. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (7)  | CLAUSES THAT DO NOT APPLY TO THIS TRANSACTION AND ARE CANCELLED:  |
|-----------|------------------------------------------------------------------------|

| (8) | CLAUSES AND CONDITIONS ADDED TO THIS AGREEMENT:  |
|-----|-------------------------------------------------------|

| I. | Caterpillar represents, through its legal representative, that: |
|----|-----------------------------------------------------------------|

| a) | It is a business corporation, organized under Mexican law. |
|----|------------------------------------------------------------|

| b) | It is prepared to purchase, from the vendor, manufacturer or builder specified byLessee, the asset(s) described in subpart (4) of the preamble to this agreement (hereinafter, "Assets"), for the purpose of granting the use and enjoyment thereof to Lessee. |
|----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| c) | It has registered this agreement in the Adhesion Contracts Registry with the National Commission for the Protection and Defense of Financial Service Users, in accordance with the Law for Transparency and Regulation of Financial Services, under the number specified at the top right of this instrument. |
|----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| d) | The general characteristics of this agreement are described on the Cover Page incorporated herewith. |
|----|------------------------------------------------------------------------------------------------------|

| II. | Lessee represents, through its legal representative, that: |
|-----|------------------------------------------------------------|

| a) | It has directly selected the Assets to be purchased by Caterpillar, for purposes of being granted the right to use and enjoy same under the terms hereof. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------|

| b) | It agrees to receive the Assets under a finance lease, for which the purchase price will be the amount set out in Appendix A hereof, under the heading "Purchase Price," and also to pay the amount established as rent or compensation, and any other applicable amounts. |
|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| c) | It has the financial and material resources necessary and sufficient to meet its payment obligations and other obligations hereunder. |
|----|---------------------------------------------------------------------------------------------------------------------------------------|

| d) | Before our execution of this agreement, Caterpillar has informed us of the content of same and of all the documents to be executed as appendices and promissory note, and the charges, fees and costs that will arise in the execution hereof. |
|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| e) | It expressly authorizes Caterpillar to, through its authorized officers, conduct investigations on its credit history through any credit reporting companies it deems appropriate. |
|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| III. | Joint Obligor represents, through its legal representative, that: |
|------|-------------------------------------------------------------------|

| a) | It wishes to be Joint Obligor with Lessee, to Caterpillar, with respect of each and every one of the obligations of Lessee assumed hereunder. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------|

| b) | It has the financial and material resources necessary and sufficient to meet its payment obligations and other obligations hereunder. |
|----|---------------------------------------------------------------------------------------------------------------------------------------|

| c) | Its corporate purpose includes the power to act as joint obligor, as well as to guarantee obligations of its own and of third parties. |
|----|----------------------------------------------------------------------------------------------------------------------------------------|

----

----

----

| a) | In the event the Total Rent is to be paid in United States Dollars, the applicable rate will be the greater of: (i) 20% (TWENTY PERCENT) per annum; (ii) the Libor Rate multiplied by 3 (THREE), with the Libor Rate understood as the arithmetic mean (rounded up to the closest 1/8th) of the rate at which Eurodollar deposits for a period and amount similar to the payment frequency and outstanding balance of principal of this agreement, respectively, in immediately available funds offered on the London Interbank market by the London headquarters of Barclays Bank, Bank of Tokyo, Bankers Trust and NatWest Bank (the reference banks) published on the Reuters Screen Libo Page on the date of interest calculation [sic], and (iii) the rate resulting from multiplying, by 2 (TWO), the Interest Rate specified in subpart (5) of the preamble hereof.  |
|----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b) | In the event the Total Rent is to be paid in Mexican Pesos, the applicable rate will be the greater of: (i) 30% (THIRTY PERCENT) per annum; (ii) the TIIE Rate multiplied by 3 (THREE), or (iii) the rate obtained by multiplying, by 2.4 (TWO POINT FOUR), the Interest Rate specified in subpart (5) of the preamble hereof. The TIIE Rate is understood as the Interbank Equilibrium Interest Rate determined on the basis of the 28-day market rates from various financial institutions (or the appropriate period used in its place in the event of non-business days), published on the date of interest calculation by Banco de México through the Federal Official Gazette. If the TIIE Rate is no longer available, this agreement will apply the rate replacing it published in the Federal Official Gazette and issued by Banco de México, or, in the absence thereof, that specified in Appendix A, under the heading "Substituted Interest Rate." |
|----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

----

| a) | Latent faults or defects of the leased Assets, even where they impede the full or partial use of same.  In the event that the existence of such latent faults or defects is discovered, Caterpillar may transfer to Lessee, where Lessee so requests, any rights Caterpillar may have against the vendor of the Assets, or, as appropriate, it shall grant Lessee the necessary powers to exercise such rights in representation of Caterpillar. |
|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b) | Total or partial loss of the Assets, even in the case of acts of God or force majeure, and |
|----|--------------------------------------------------------------------------------------------|

| c) | All risks, losses, theft, destruction or damage affecting the Assets, partially or wholly. |
|----|--------------------------------------------------------------------------------------------|

| d) | The risks of strict liability described in Article 1913 of the Federal Civil Code and its counterparts in the states of the Mexican Republic. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------|

----

| a) | Purchase of the Assets at a price under its purchase value, which is specified in Appendix A hereof under the heading "Purchase Option." |
|----|------------------------------------------------------------------------------------------------------------------------------------------|

| b) | An extension of the term to continue the use and temporary enjoyment of the Assets for the period specified in Appendix A hereof under the heading "Extension Term," during which the rent payments will be those set out in Appendix A under the heading "Extension Rent," and these will be lower than the installments paid by Lessee to Caterpillar during the original term. |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| c) | Receiving a share of the proceeds from the sale of the Assets to a third party, in which case its share will be that set out in Appendix A of this agreement, under the heading "Share of Proceeds from Sale." |
|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| a) | For delay and/or failure to make timely payment of any rent Installments or any other amount to be paid by Lessee under this agreement and its appendices. |
|----|------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b) | For Lessee's nonfulfillment of tax obligations or failure to make the proper contribution payments to the Mexican Social Security Institute, unless such payments are legally contested and an adequate reserve fund is established. |
|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| c) | For failure of Lessee to inform Caterpillar immediately of any situation that may physically or legally affect the Assets. |
|----|----------------------------------------------------------------------------------------------------------------------------|

| d) | For attachment of the Assets, regardless of the cause thereof. |
|----|----------------------------------------------------------------|

| e) | For breach of any obligation hereunder. |
|----|-----------------------------------------|

| f) | For insolvency or bankruptcy of Lessee. |
|----|-----------------------------------------|

| g) | In the event of individual or collective workers' claims against Lessee that may affect the possession, proper operation or preservation of the Assets. |
|----|---------------------------------------------------------------------------------------------------------------------------------------------------------|

| h) | In the event Lessee employs the Assets for any use or purpose other than appropriate normal use. |
|----|--------------------------------------------------------------------------------------------------|

| i) | In the event Lessee foregoes performing, on its own account, at its own expense and in a timely fashion, any repairs or maintenance services necessary for the Assets to remain in perfect working condition, with the normal wear and tear from use and the passage of time. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| j) | In the event Lessee foregoes insuring and maintaining the insurance on the Assets in the terms specified in the Insurance clause herein. |
|----|------------------------------------------------------------------------------------------------------------------------------------------|

| k) | In the event that Lessee moves the Assets to a place other than that specified in Appendix A, under the heading "Location of the Leased Assets" or subleases same without prior written consent from Caterpillar. |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| l) | In the event Lessee refuses to allow Caterpillar to inspect the Assets and to provide information on their location. |
|----|----------------------------------------------------------------------------------------------------------------------|

----

----

----

----

|                                                                                                                                                                                                                                                                                                                                                          |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 4336FF                                                                                                                                                                                                                                                                                                                                                        |
|                                                                                                                                                                                                                                                                                                                                                          |
| This Appendix A is an integral part of the Finance Lease Agreement whose number is indicated above, entered into by and between CATERPILLAR CRÉDITO, S.A. DE C.V., SOCIEDAD FINANCIERA DE OBJETO MÚLTIPLE, E.N.R., as Lessor, COMPAÑIA MEXICANA DE AVINO SA DE CV, as Lessee, and [sic] (hereinafter, “Agreement”). |
|                                                                                                                                                                                                                                                                                                                                                          |
| The terms used in this Appendix A that are initial capped will be terms that are defined and that will have the meaning that is assigned to them in the Agreement, unless a different meaning is assigned.                                                                                                                                                    |
|                                                                                                                                                                                                                                                                                                                                                          |

| I N F O R M A T I O N A L    C H A R TLease Terms and Conditions |
|--------------------------------------------------------------------------------------|

| Invoice Price Excluding VAT:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | $ 275,124.67 DOLLARS                                                                                                                                                                                                      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Down Payment:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | $ 41,268.70 DOLLARS                                                                                                                                                                                                            |
| Purchase Price:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | $ 233,855.97 DOLLARS                                                                                                                                                                                                           |
| Mandatory Lease Term:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 24 Month(s)                                                                                                                                                                                                                    |
| Total Rent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | $ 279,411.58 DOLLARS / PESOS                                                                                                                                                                                                   |
| Equivalence in Mexico Pesos:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | If the payment currency is set to be a foreign currency, the contents of Clause 10 of the Agreement will apply.                                                                                                                |
| Installments:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | 24                                                                                                                                                                                                                             |
| Payment Frequency:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | MONTHLY                                                                                                                                                                                                                        |
| Deposit Amount:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | $ 9,922.62 DOLLARS / PESOS                                                                                                                                                                                                     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                           |
| First Period:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | The date this agreement is signed                                                                                                                                                                                              |
| Starts:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                                                                                                                                           |
| Ends:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 1st day of October ,2012                                                                                                                                                                                                       |
| Opening Fee:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                           |
| Financial Services Fee:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 0.50 %                                                                                                                                                                                                                         |
| Management Fee:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 0.50 %                                                                                                                                                                                                                         |
| Opening Fee Payment Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | The date this agreement is signed                                                                                                                                                                                              |
| Prepayment Fee:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 0.50 %                                                                                                                                                                                                                         |
| Late Payment Penalty:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | $ 50.00 DOLLARS / PESOS PER MONTH plus VAT.                                                                                                                                                                                    |
| Agreement Costs Payment Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | The date this agreement is signed                                                                                                                                                                                              |
| Applicable Base Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | FIXED                                                                                                                                                                                                                          |
| Percentage Points:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | NOT APPLICABLE                                                                                                                                                                                                                 |
| Factor:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | NOT APPLICABLE                                                                                                                                                                                                                 |
| Fixed Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | 1.75 %                                                                                                                                                                                                                         |
| Substituted Interest Rate:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | The rate that replaces it and is published in the Federal Official Gazette as issued by Banco de México.                                                                                                                  |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                           |
| Insurance:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Insurance for the contractor equipment to be paid by the client. The insurance will expire annually and will always designate the primary beneficiary to be Caterpillar Crédito S.A. de C.V. SOFOM, E.N.R. See Clause 21. |
| Specialized User Assistance Unit:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Boulevard Díaz Ordaz 140 Pte. Parque Torre 2, Piso 9, Monterrey N.L. C.P. 64650 Telephone Number (81) 80405454 fax (81) 80405474 and e-mail: servicioalcliente.mx@cat.com.                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                           |
| CONDUSEF User Assistance:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | 53 400 999 or toll free long distance 01 800 999 80 80, web page:  www.condusef.gob.mx and e-mail: opinion@condusef.gob.mx                                                                                           |
| Contractual Penalty:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 5.00% on the outstanding balance                                                                                                                                                                                               |
| Purchase Option:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | $ 0.00 DOLLARS / PESOS                                                                                                                                                                                                         |
| Extension Term:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 12 Months                                                                                                                                                                                                                      |
| Extension Rent:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Equivalent to 1.00% in US dollars on the Accrued Purchase Price.                                                                                                                                                               |
| Share of Proceeds from Sale:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | 80.00%                                                                                                                                                                                                                         |
| Location of Leased Assets:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | In the Republic of Mexico.                                                                                                                                                                                                     |
| Co-Lessee:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                                                                           |
| *Cautionary Notes:"Since the lease rate is variable, the interest may increase.”“Breach of your obligations may result in default interest and fees.”“Taking on credit for more than you are able to repay can affect your credit history.”“The surety, joint obligor or joint lessor will be liable as main obligor with respect to Caterpillar.”“Amounts payable under this credit will vary depending on the performance of the reference index or currency.” |

----

| PAYMENTNO. |   | PAYMENTDATE(ddmmmyy) |   | MONTHLYRENTDUE |       |   | VATONINTEREST |   |   | VARIABLEINTERESTIN PAYMENT |   |   | PRINCIPALVAT |   |   | FIXED PRINCIPALIN PAYMENT |      |   | OUTSTANDINGPRINCIPALAFTERPAYMENT |   |
|------------|--------|----------------------|--------|----------------|------------|--------|---------------|--------|--------|----------------------------|--------|--------|--------------|--------|--------|---------------------------|-----------|--------|----------------------------------|--------|
| 0          |   | A la firma           |   |           | 41.268.70  |   |          |   | 0.00   |                       |   |   | 0.00         |   |   |                      | 6,602.99  |   |                             |   | 41,2138.70 |   |   |   | 233,855.97 |   |
| 1          |   | 01 Oct 12            |   |           | 9,922.62   |   |          |   | 54.57  |                       |   |   | 341.04       |   |   |                      | 1,533.05  |   |                             |   | 9,581.58 |   |   |   | 224,274.39 |   |
| 2          |   | 01 Nov 12            |   |           | 9,922.62   |   |          |   | 52.33  |                       |   |   | 327.07       |   |   |                      | 1,535.29  |   |                             |   | 9,595.55 |   |   |   | 214,678.84 |   |
| 3          |   | 01 Dic 12            |   |           | 9,922.62   |   |          |   | 50.09  |                       |   |   | 313.07       |   |   |                      | 1,537.53  |   |                             |   | 9,609.54 |   |   |   | 205,069.30 |   |
| 4          |   | 01 Ene 13            |   |           | 9,922.62   |   |          |   | 47.85  |                       |   |   | 299.06       |   |   |                      | 1,539.77  |   |                             |   | 9,623.56 |   |   |   | 195,445.74 |   |
| 5          |   | 01 Feb. 13           |   |           | 9,922.62   |   |          |   | 45.60  |                       |   |   | 285.03       |   |   |                      | 1,542.01  |   |                             |   | 9,637.59 |   |   |   | 185,808.15 |   |
| 6          |   | 01 Mar 13            |   |           | 9,922.62   |   |          |   | 43.36  |                       |   |   | 270.97       |   |   |                      | 1,544.26  |   |                             |   | 9,651.65 |   |   |   | 176,156.50 |   |
| 7          |   | 01 Abr 13            |   |           | 9,922.62   |   |          |   | 41.10  |                       |   |   | 256.89       |   |   |                      | 1,546.52  |   |                             |   | 9,665.72 |   |   |   | 166,490.78 |   |
| 8          |   | 01 May 13            |   |           | 9,922.62   |   |          |   | 38.85  |                       |   |   | 242.80       |   |   |                      | 1,548.77  |   |                             |   | 9,679.82 |   |   |   | 156,810.96 |   |
| 9          |   | 01 Jun 13            |   |           | 9,922.62   |   |          |   | 36.59  |                       |   |   | 228.68       |   |   |                      | 1,551.03  |   |                             |   | 9,693.93 |   |   |   | 147,117.03 |   |
| 10         |   | 01 Jul 13            |   |           | 9,922.62   |   |          |   | 34.33  |                       |   |   | 214.55       |   |   |                      | 1,553.29  |   |                             |   | 9,708.07 |   |   |   | 137,408.96 |   |
| 11         |   | 01 Ago 13            |   |           | 9.922.62   |   |          |   | 32.06  |                       |   |   | 200.39       |   |   |                      | 1,555.56  |   |                             |   | 9,722.23 |   |   | 127,686.73 |   |
| 12         |   | 01 Sep 13            |   |           | 9,922.62   |   |          |   | 29.79  |                       |   |   | 186.21       |   |   |                      | 1,557.83  |   |                             |   | 9,736.41 |   |   |   | 117,950.32 |   |
| 13         |   | 01 Oct 13            |   |           | 9,922.62   |   |          |   | 27.52  |                       |   |   | 172.01       |   |   |                      | 1,560.10  |   |                             |   | 9,750.60 |   |   |   | 108,199.72 |   |
| 14         |   | 01 Nov 13            |   |           | 9,922.62   |   |          |   | 25.25  |                       |   |   | 157.79       |   |   |                      | 1,562.37  |   |                             |   | 9,764.82 |   |   |   | 98,434.90 |   |
| 15         |   | 01 Dic 13            |   |           | 9,922.62   |   |          |   | 22.97  |                       |   |   | 143.55       |   |   |                      | 1,564.65  |   |                             |   | 9,779.06 |   |   |   | 88,655.84 |   |
| 16         |   | 01 Ene 14            |   |           | 9,922.62   |   |          |   | 20.69  |                       |   |   | 129.29       |   |   |                      | 1,566.93  |   |                             |   | 9,793.33 |   |   |   | 78,862.51 |   |
| 17         |   | 01 Feb 14            |   |           | 9,922.62   |   |          |   | 18.40  |                       |   |   | 115.01       |   |   |                      | 1,569.22  |   |                             |   | 9,807.61 |   |   |   | 69,054.90 |   |
| 18         |   | 01 Mar 14            |   |           | 9,922.62   |   |          |   | 16.11  |                       |   |   | 100.71       |   |   |                      | 1,571.51  |   |                             |   | 9,821.91 |   |   |   | 59,232.99 |   |
| 19         |   | 01 Abr 14            |   |           | 9,922.62   |   |          |   | 13.82  |                       |   |   | 86.38        |   |   |                      | 1,573.80  |   |                             |   | 9,836.23 |   |   |   | 49,396.76 |   |
| 20         |   | 01 May 14            |   |           | 9,922.62   |   |          |   | 11.53  |                       |   |   | 72.04        |   |   |                      | 1,576.09  |   |                             |   | 9,850.58 |   |   |   | 39,546.18 |   |
| 21         |   | 01 Jun 14            |   |           | 9,922.62   |   |          |   | 9.23   |                       |   |   | 57.67        |   |   |                      | 1,578.39  |   |                             |   | 9,864.94 |   |   |   | 29,681.24 |   |
| 22         |   | 01 Jul 14            |   |           | 9,922.62   |   |          |   | 6.93   |                       |   |   | 43.29        |   |   |                      | 1,580.69  |   |                             |   | 9,879.33 |   |   |   | 19,801.91 |   |
| 23         |   | 01 Ago 14            |   |           | 9,922.62   |   |          |   | 4.62   |                       |   |   | 28.88        |   |   |                      | 1,583.00  |   |                             |   | 9,893.74 |   |   |   | 9,908.11 |   |
| 24         |   | 01 Sep 14            |   |           | 9,922.62   |   |          |   | 2.31   |                       |   |   | 14.45        |   |   |                      | 1.585.31  |   |                             |   | 9,908.17 |   |   |   | 0.00 |   |
|       |   | Total                |   |           | 279,411.58 |   |          |   | 685.90 |                       |   |   | 4,286.83     |   |   |                      | 44,019.96 |   |                             |   | 275,124.67 |   |   |   |   |   |

| (1) May change due to the base rate and the VAT pursuant to Article 18-A of the VAT law.             |
|------------------------------------------------------------------------------------------------------|
|                                                                                                 |
| In witness whereof, this agreement is signed in triplicate on the 18th day of  July, 2012. |

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|   | A D D I T I O N A L    A U T H O R I Z A T I O N                                                                                                                                                                                                                                                                                                                                                                                                                           |   |
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|   | I hereby expressly and irrevocably authorize CATERPILLAR CRÉDITO, S.A. DE C.V., SOCIEDAD FINANCIERA DE OBJETO MÚLTIPLE, E.N.R., through its authorized employees, to use any means to investigate and monitor my credit history and performance, personal information or any preventive measures put in place by banking, financial, business, or service institutions in connection with my credit performance, in the credit reporting companies that it deems pertinent.          |   |
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|   | Likewise, I state that I am aware of the nature and scope of the information to be requested and of the use that CATERPILLAR CRÉDITO, S.A. DE C.V., SOCIEDAD FINANCIERA DE OBJETO MÚLTIPLE, E.N.R., will make of that information.  This authorization will remain in place until the end of the legal relationship between CATERPILLAR CRÉDITO, S.A. DE C.V., SOCIEDAD FINANCIERA DE OBJETO MÚLTIPLE, E.N.R.,  and myself or the company I represent. |   |
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|   | I am aware of and accept the fact that this document will remain in the possession of CATERPILLAR CRÉDITO, S.A. DE C.V., SOCIEDAD FINANCIERA DE OBJETO MÚLTIPLE, E.N.R. to track and enforce this authorization.                                                                                                                                                                                                                                                                     |   |

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|   | FEDERAL CIVIL CODE:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                                          |
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|   | Article 1913. When a party uses mechanisms, instruments, devices or substances that are hazardous in and of themselves, due to the speed involved, due to their explosive or flammable nature, due to the electrical current they conduct or due to other similar causes, that party will be held accountable for any damage it causes, even where it has not acted illegally, unless such party is able to demonstrate that the damage was caused by the inexcusable fault or negligence of the victim.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                                                                                                                                          |
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|   | Article 1987. In addition to joint liability, there will be active joint and several liability when two or more creditors have the right to demand, each on its own, full performance of the obligation, and passive joint and several liability when two or more debtors report the obligation to provide, each one on its own, the full performance due.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                          |
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|   | VALUE ADDED TAX LAW:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                                                          |
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|   | Article 18-A. To calculate taxes, the value will be considered to be the actual value of the accrued interest arising from credit facilities granted by the financial system institutions referenced in Article 8 of the Income Tax Law, on credit facilities issued by means of line of credit or checking account agreements where the borrower or checking account holder may draw down on credit by using cards issued by the lender, and on finance lease transactions.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                                          |
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|   | For the transactions referenced in this article, the fees charged to the debtor, borrower, checking account holder or lessee for drawdowns of cash or any other item, and contractual penalties, except default interest, will not be considered to be part of the accrued interest.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                                                          |
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|   | The actual value of the accrued interest will be determined as follows:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |                                                                                                                                                                                                                                                                                          |
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|   | I. When the transaction in question is denominated in the domestic or a foreign currency, the actual value of the interest will be calculated by applying the base used to calculate accrued interest, the actual interest rate, in accordance with the following:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                          |
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|   | a) The actual interest rate will be calculated by subtracting the inflation for the period involved from the interest rate for that same period. Inflation will be calculated by dividing the investment unit value set by Banco de México for the last day in the period by the investment unit value for the day immediately prior to the first day in the period and subtracting the unit quotient.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                          |
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|   | b) When the credit transaction is in foreign currency, the exchange rate gains accrued in the period involved, expressed as a proportion of the average principal balance for that same period, will be added to the pertinent interest rate for that period. To express the exchange rate gains accrued in the period involved as a proportion of the average principal balance for that same period, the exchange rate gains in Mexican pesos will be divided by that average balance converted into Mexican pesos at the exchange rate published by Banco de México in the Federal Official Gazette for the last day in the  period in which interest is accrued. If Banco de México does not publish the exchange rate, the last exchange rate published by that institution prior to that date will be applied. The average principal balance will be the sum of the daily principal balances in the period divided by the number of days in that same period in which interest is accrued. |                                                                                                                                                                                                                                                                                          |
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|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | When the result of adding up the interest rate for the period and the exchange rate gains accrued in the same period expressed in the terms of the preceding paragraph is equal to or less than the inflation in the period in which interest is accrued, no tax will be due for that period. |   |
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|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | If the interest rate for the period is expressed as a percentage, it should be divided by one hundred prior to doing the additions and subtractions as mentioned in the preceding paragraphs.                                                                                                 |   |
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|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | II. When the transactions involved are denominated in investment units, the actual value of the interest will be the interest accrued in the period without considering the adjustment pertaining to the principal due to being denominated in investment units.                              |   |
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|   | When the payment for interest accrued monthly is not received for a period of three consecutive months, the taxpayer may, beginning with the fourth month, defer the tax on interest that is accrued beginning with that month until the month when the payment is actually received. Beginning with the month when the full payment is received for the accrued interest that was not collected as referenced in this paragraph, the pertinent tax on the interest that is accrued subsequently will take effect on the month when the interest is accrued. The contents of this paragraph will only be applicable to finance leases for transactions engaged in with the general public.                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                          |
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|   | For credit transactions or finance leases in foreign currency that are entered into with the general public, to calculate interest, instead of the actual value of the accrued interest referenced in this article, the value of the accrued interest may be considered. When this option is exercised for a credit facility, it may not be changed during the lifetime of that credit facility.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |                                                                                                                                                                                                                                                                                          |
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|   | GENERAL SPECIAL-PURPOSE FINANCIAL INTERMEDIARIES AND ACTIVITIES LAW:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                                                          |
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|   | Article 87-F. The agreement recording the credit facility, finance lease or factoring executed by multiple-purpose financial institutions, so long as the instrument is accompanied by a certification of the pertinent account statement as referenced in the preceding article, will be a commercial executory instrument without the need for authentication of signature or any other requirement whatsoever.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                          |

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|   | The account statement specified in the first paragraph of this article must contain the identification information on the contract or agreement recording the credit facility, factoring or finance lease that has been executed, the initial capital available or, as the case may be, the determined rent payment, the principal, or, as the case may be, outstanding, unpaid rent; principal or, as the case may be, rent coming due; the credit interest rate or, as the case may be, the variability of the rent applicable to the rent that may be determined for each payment period, default interest incurred, the interest rate applicable to default interest, and the amount of ancillary fees incurred. |   |
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|   | Article 87-J. Finance lease, factoring, or credit facility agreements that are entered into by multiple-purpose financial institutions must expressly indicate that, for the agreements to be created and operate as such, they do not require authorization from the Secretary of Treasury and Public Credit. The same thing must be stated in any type of information that multiple-purpose financial institutions use to promote their operations and services.                                                                                                                                                                                                                                                   |   |
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|   | In addition to the foregoing, multiple-purpose unregulated financial institutions must state, in the documentation and information referenced in the preceding paragraph, that they are not subject to supervision and oversight by the National Banking and Securities Commission to engage in the transactions indicated in that same paragraph.                                                                                                                                                                                                                                                                                                                                                                   |   |
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|   | GENERAL LAW ON NEGOTIABLE INSTRUMENTS AND CREDIT TRANSACTIONS:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |
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|   | Article 4. For credit transactions that are governed by this law, it is presumed that the co-debtors are jointly and severally bound.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |
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|   | Article 408. In virtue of the finance lease agreement, the lessor undertakes to acquire certain assets and grant their temporary use or enjoyment for a mandatory term to the lessee, who may be an individual or company. The latter undertakes to pay, as consideration, in installment payments, as agreed, an amount of money that is determined or that is to be determined, to pay for the purchase of the goods, financial charges, and other ancillary fees as stipulated, and choose, upon the expiration of the agreement, one of the ending options referenced in Article 410 of this Law.                                                                                                                |   |
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|   | Finance lease agreements must be executed in writing and may be registered in the Public Registry of Commerce at the request of the parties to the agreement without prejudice to registering it in other registries as determined by law.                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |
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|   | In the case specified in the preceding paragraph, the parties must stipulate the period in which the advance payments are to be made, after which the lessee must pay them in the finance lease with the characteristics and conditions agreed to in the pertinent agreement.                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |
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|   | Article 414. Unless stipulated otherwise, the lessee is responsible for the following:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |
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|   | I.           Any hidden defects or faults in the assets that impede their partial or total use. In such a case, the lessor will transfer to the lessee the rights pertaining thereto as buyer so the lessee may exercise them against the seller or will authorize the lessee to represent it to exercise said rights.                                                                                                                                                                                                                                                                                                                                        |   |
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|   | II.          Full or partial loss of the assets, even where the loss is due to force majeure or acts of God; and                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |
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|   | III.         In general, any risks, losses, theft, destruction or damage affecting the assets under the finance lease.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |
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|   | In the event of the specified contingencies, the lessee is not released from making the payment for consideration and must make payment as agreed to in the agreement.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |
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|   | Article 417. Any insurance or guarantee that is set forth in finance lease agreements must cover, under the terms as stipulated, at least the risks involved in construction, transportation, receipt, or installation, depending on the nature of the assets, damages or losses to the assets themselves, in connection with their possession and use, as well as civil and professional liability of any nature that may be caused in light of the use or enjoyment of the assets themselves, when dealing with assets that may cause personal or property damage to third parties.                                                                                                                                |   |
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|   | The agreements or documents recording the guarantee must indicate the lessor as primary beneficiary so that, first of all, with the payment for compensation the lessor is paid the outstanding balances for the obligation under agreement, or the liability to which the lessor is bound as the owner of the assets. If the compensation amount paid does not cover the balances or liability, the lessee must pay the shortfall.                                                                                                                                                                                                                                                                                  |   |
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|   | Article 418. Insurance premiums and expenses will be borne by the lessee, even when the lessor takes out the insurance referenced in the preceding article, should the case be such that the insurance is stipulated to be taken out by the lessee and the lessee does not do so within three days after the agreement is executed.  This is without prejudice to this omission being considered to be grounds for termination of the agreement.                                                                                                                                                                                                                                                           |   |
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|   | LAW FOR FINANCIAL SERVICES TRANSPARENCY AND REGULATION:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   |
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|   | Through the means stipulated with their clients, entities must announce any increase in fee amounts as well as any new fees to be charged at least thirty calendar days in advance of the date provided for the changes to take effect. Without prejudice to the foregoing, under the terms set forth in the agreements, clients will have the right to terminate the provision of services provided by the entities if they do not agree with the new amounts without the entity being able to charge any additional sum whatsoever therefor, with the exception of the amounts owed that would have already been generated as of the date when the client requests that the service be terminated.                 |   |

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|   | Breach of the contents of the preceding paragraph will result in the invalidation of the fee, independently of any penalties that may be appropriate.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
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|   | MONETARY LAW OF THE UNITED MEXICAN STATES.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |
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|   | Article 8. Foreign currency is not legal tender in the Republic except in cases when the Law expressly deems otherwise. Payment obligations in foreign currency that are entered into inside or outside the Republic will be complied with in Mexico by providing an equivalent amount in Mexican pesos at the current exchange rate in the place and on the date that the payment must be made.                                                                                                                                                                                                                                                                     |   |
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|   | The exchange rate will be determined based on the provisions that Banco de México issues under the terms of its Constitutional Law.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
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|   | Payments in foreign currency arising from situations or funds transfers from abroad that are carried out through Banco de México or financial institutions must be fulfilled by delivering the currency that underlies the transfer or situation. This is without prejudice to enforcement of the obligations that the current exchange rate program entails.                                                                                                                                                                                                                                                                                                   |   |
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|   | The obligations referenced in the first paragraph of this article that arise from irregular bank deposits created in foreign currency will be settled based on the contents of that paragraph unless the debtor is expressly bound to make the payment in precisely that foreign currency, in which case that currency must be delivered. The latter payment method may only be stipulated in cases where the competent banking authorities authorize it by means of general rules that must be published in the Federal Official Gazette. This is without prejudice to enforcement of the obligations that are entailed in the current exchange rate program.  |   |

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