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| A) | TO      PROVIDE ANY NECESSARY PERSONNEL THAT THE CLIENT DOES NOT HAVE SO THAT THE      CLIENT CAN CARRY OUT ITS REGULAR ACTIVITIES WITHOUT ANY INCONVENIENCE      WHATSOEVER. |
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| B) | THE      SERVICE PROVIDER SHALL PROVIDE THE NECESSARY SKILLED AND QUALIFIED      PERSONNEL AS REQUIRED, ALWAYS WITH THE      SERVICE PROVIDER’S OWNRESOURCES. |
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| C) | ANY      INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER RENDERS THE SERVICES SHALL      NOT BE UNDER THE ORDERS OF THE CLIENT, NOR SHALL THEY DEPEND ON THE      CLIENT; THEREFORE, SAID INDIVIDUALS SHALL NOT BE SUBORDINATED TO THE      CLIENT NOR SHALL THEY BE EMPLOYEES OF THE CLIENT. SIMILARLY, ANY      INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER RENDERS THE SERVICES SHALL      CONDUCT THEIR ACTIVITIES AT THE PLACE AND TIME THEY DEEM CONVENIENT, THAT      IS, WITHOUT ANY OBLIGATION TO WORK ANY MANDATORY HOURS, WHICH THEY SHALL      DO WITH THEIR OWN RESOURCES. |
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| D) | SIMILARLY,      ANY INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER PERFORMS ITS      OBLIGATIONS SHALL NOT BE ENTITLED TO ANY FIXED WAGES OR SALARIES OR ANY      FRINGE BENEFITS SUCH AS INFONAVIT [MEXICAN INSTITUTE OF NATIONAL WORKERS’      HOUSING FUND], MEXICAN SOCIAL SECURITY, AFORE [MEXICAN RETIREMENT FUND],      ET CETERA FROM THE CLIENT, BY REASON THAT THERE SHALL BE NO LABOR      RELATIONSHIP AMONG SAID INDIVIDUALS AND THE CLIENT; THEREFORE, ANY      INDIVIDUALS THAT ARE SUBORDINATED TO THE SERVICE PROVIDER SHALL BE FREE TO      RENDER THEIR PROFESSIONAL SERVICES TO ANY OTHER INDIVIDUAL OR CORPORATION,      PROVIDED SAID SERVICES ARE NOT ILLEGAL, IMMORAL OR DISLOYAL. THE SERVICE      PROVIDER SHALL BE RESPONSIBLE FOR ANY SERVICES OF THE AFOREMENTIONED TYPE      THAT MAY BE RENDERED BY SAIDINDIVIDUALS. |
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| E) | THE      SERVICE PROVIDER SHALL BE RESPONSIBLE REGARDING ANY LABOR MATTERS AND,      GENERALLY, FOR ANY KIND OF ACTIONS CARRIED OUT BY THE SKILLED PERSONNEL      RENDERING THEIR SERVICES AT THE CLIENT’S PREMISES AS A RESULT OF THIS      AGREEMENT FOLLOWING THE DATE THIS INSTRUMENT COMES INTO FULL FORCE AND      EFFECT. |
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| F) | THE      SERVICE PROVIDER SHALL BE RESPONSIBLE FOR SATISFACTORILY EXECUTING ANY AND      ALL LEGAL AND MATERIAL ACTS THAT MAY BE NECESSARY FOR THE PERFORMANCE OF      THIS AGREEMENT AND THE SERVICES REQUIRED, WITH ITS OWN HUMAN RESOURCES.      THEREFORE, THERE SHALL BE NO PRESENT OR FUTURE TAX OR LABOR LIABILITY ON      THE PART OF THE CLIENT TO THE SERVICE PROVIDER OR TO THE SERVICE      PROVIDER’S EMPLOYEES AND SHAREHOLDERS AND TO ANY THIRD PARTIES ENGAGED BY      THE SERVICE PROVIDER, IN ACCORDANCE WITH THE LAWS IN FORCE IN THIS COUNTRY      AND PURSUANT TO THE STIPULATIONS SET FORTH HEREIN. THE FOREGOING SHALL      ONLY BE APPLICABLE TO THE PERIOD COMMENCING ON THE DATE OF EXECUTION OF      THIS AGREEMENT THROUGH THE TERMINATION HEREOF, BUT IT SHALL NOT BE      APPLICABLE TO ANY CONTINGENCY OF THE CLIENT PRIOR TO THE EXECUTION OF THIS      SERVICE AGREEMENT. |
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| G) | THE      SERVICE PROVIDER AGREES TO PAY IN DUE TIME AND FORM ANY COMMISSION,      PAYMENT, RETURNS, DIVIDENDS OF THE PERSONNEL SUBJECT TO THIS AGREEMENT WHO      RENDER THEIR SERVICES AT THE CLIENT’S PREMISES, IN ACCORDANCE WITH THE      STIPULATIONS SET FORTH HEREIN. IT IS WORTHWHILE MENTIONING THAT THE      SERVICES THAT ARE THE SUBJECT-MATTER HEREOF SHALL BE EXCLUSIVELY RENDERED      IN THE REPUBLIC OF MEXICO. |
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| H) | FURTHERMORE,      THE SERVICE PROVIDER SHALL HAVE THE OBLIGATION TO DELIVER TO THE CLIENT      EVERY WEEK, EVERY TEN DAYS, EVERY FIFTEEN DAYS OR EVERY MONTH, PROOF OF      TIMELY PAYMENT TO THE INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDERS      RENDERS THE SERVICES TO THE CLIENT IN ACCORDANCE HEREWITH AND PURSUANT TO      THE OBLIGATION ASSUMED HEREUNDER BY THE SERVICE  PROVIDER. |
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| I) | THE      SERVICE PROVIDER AGREES TO CAUSE THE INDIVIDUALS THROUGH WHICH THE FORMER      RENDERS THE SERVICES TO DULY FULFILL ANY ASSIGNED TASKS ACCORDING TO THE      CLIENT’S NEEDS, WITHOUT THEREBY IMPLYING ANY TYPE OF SUBORDINATION OF SAID      INDIVIDUALS TO THE CLIENT. AS STATED ABOVE, THE INDIVIDUALS PROVIDED BY      THE SERVICE PROVIDER FOR THE DUE PERFORMANCE OF THIS AGREEMENT SHALL NOT      BE SUBJECT TO ANY WORKING HOURS WHATSOEVER; HOWEVER, THE SERVICE PROVIDER      SHALL USE ITS BEST EFFORTS TO ENSURE THAT THE INDIVIDUALS THROUGH WHICH      THE SERVICES ARE RENDERED TRY TO ADAPT THEMSELVES TO THE WORKING HOURS      DURING WHICH THE CLIENT RENDERS ITS SERVICES TO ITS    CUSTOMERS. |
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| J) | TO      SUBMIT A MONTHLY REPORT TO THE CLIENT SO AS TO INFORM THE CLIENT’S      MANAGEMENT OF ANY PROGRESS MADE AND ANY EVENTS THAT MAY BE OF INTEREST AND      DIRECTLY ASSOCIATED WITH THE SERVICESRENDERED. |
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| K) | TO      MAINTAIN ABSOLUTE CONFIDENTIALITY OF ANY INFORMATION RECEIVED FROM THE      CLIENT WITH RESPECT TO THE RENDERING OF SERVICES THAT ARE THE      SUBJECT-MATTER HEREOF. |
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| L) | TO      ANSWER FOR ANY LABOR LIABILITY RESULTING FROM ANY LAWSUIT AGAINST THE      CLIENT FILED BY ANY OF THE INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER      RENDERS THE SERVICES, WHICH SHALL ONLY BE APPLICABLE TO THE PERIOD      COMMENCING ON THE DATE OF EXECUTION OF THIS INSTRUMENT AND THROUGH THE      TERMINATION HEREOF, BUT IT SHALL NOT BE APPLICABLE TO ANY CONTINGENCIES OF      THE CLIENT PRIOR TO THE EXECUTION OF THIS SERVICE AGREEMENT; THE      FOREGOING, NOTWITHSTANDING ANY PERSONNEL PRESENTLY WORKING AT THE PREMISES      IS INVOLVED OR NOT. |
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| M) | TO      INDEMNIFY THE CLIENT FOR ANY DAMAGES AND/OR LOSS THAT MAY ARISE AS A      RESULT OF THE RENDERING OF THE SERVICES DESCRIBED HEREIN, AND FOR WHICH      THE SERVICE PROVIDER IS SOLELYRESPONSIBLE. |
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| N) | THE      SERVICE PROVIDER AGREES TO PAY THE APPLICABLE TAXES IN CONNECTION WITH THE      INDIVIDUALS THROUGH WHICH THE SERVICES ARE RENDERED AND ANY INCOME EARNED      BY SAID INDIVIDUALS FOR THE SERVICES RENDERED TO THE CLIENT. FOR SUCH      PURPOSE, IT SHALL FILE ANY TAX RETURNS REQUIRED BY LAW. THEREFORE, THE      CLIENT SHALL BE EXEMPTED FROM ANY PAYMENT OF TAXES WITH RESPECT TO THE      INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER RENDERS THE SERVICES, SINCE      SAID INDIVIDUALS ARE NOT SUBORDINATED TO THE CLIENT, NOR HAVE THEY ANY      DIRECT RELATIONSHIP WITH THECLIENT. |
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| O) | THE      SERVICE PROVIDER AGREES TO SUBMIT TO THE CLIENT THE RESPECTIVE INVOICE FOR      THE SERVICES IN COMPLIANCE WITH THE TAX REQUIREMENT UPON PAYMENT OF SAID      SERVICES. |
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| P) | THE      SERVICE PROVIDER AGREES TO PERFORM ANY AND ALL OBLIGATIONS DERIVED FROM      THE STRICT INTERPRETATION OF THE CLAUSES HEREOF. THE SERVICES SHALL BE      RENDERED BY THE PERSONNEL DEEMED CONVENIENT BY THE SERVICE PROVIDER, IN      STRICT COMPLIANCE WITH THE HIGHEST LEVELS OF PROFESSIONAL ETHICS AND      EFFICIENCY AT ALL TIMES. |
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| A) | TO      SUPPLY TO THE SERVICE PROVIDER ANY INFORMATION THAT MAY BE NECESSARY SO AS      TO RENDER THE SERVICES IN A CORRECT AND EFFICIENT FASHION, WITH THE      UNDERSTANDING THAT SAID INFORMATION SHALL BE AVAILABLE TO THE CLIENT UPON      REQUEST. |
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| B) | TO      TIMELY INFORM THE SERVICE PROVIDER OF ANY REQUIRED SERVICES SO THAT THE      SERVICE PROVIDER IS ABLE TO RENDER SAID REQUIRED  SERVICES. |
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| C) | TO      TIMELY PAY THE RESPECTIVE FEES THAT HAVE BEEN DESCRIBED HEREIN. SAID FEES      MUST BE PAID IN FULL, IN DUE TIME AND FORM AND SOLELY FOR PURPOSES THAT      THE SERVICE PROVIDER IS ABLE TO PAY THE PERSONNEL THROUGH WHICH IT RENDERS      THE SERVICES AT THE CLIENT’SPREMISES. |
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| D) | IT      SHALL BE STRICTLY PROHIBITED THAT THE CLIENT MAKES ANY PAYMENT WHATSOEVER      TO THE INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER RENDERS THE      SERVICES, BY REASON THAT SAID INDIVIDUALS FROM WHICH THE CLIENT RECEIVES      SAID SERVICES ARE NOT SUBORDINATED TO THE CLIENT, NOR HAVE THEY ANY DIRECT      RELATIONSHIP WITH THE CLIENT. |
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| E) | TO      INFORM THE SERVICE PROVIDER OF ANY AND ALL IRREGULARITIES OF THE PERSONNEL      THROUGH WHICH THE SERVICE PROVIDER RENDERS THE SERVICES AND WHO RENDERING      THEIR SERVICES AT THE CLIENT’S PREMISES SO THAT THE SERVICE PROVIDER TAKES      ANY NECESSARY MEASURES IN THATREGARD. |
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| F) | TO      TIMELY DELIVER TO THE SERVICE PROVIDER A LIST OF THE INDIVIDUALS THROUGH      WHICH THE SERVICE PROVIDER RENDERS THE SERVICES, INDICATING ANY FAILURE,      SUCCESS, PROGRESS AND ANY OTHER NECESSARY INFORMATION IN CONNECTION WITH      THE RENDERING OF SERVICES, SO THAT THE SERVICE PROVIDER IS ABLE TO      CORRECTLY PAY EACH ONE OF THE INDIVIDUALS THROUGH WHICH IT RENDERS THE      SERVICES. SAID LIST MUST BE DELIVERED 24 HOURS PRIOR TO THE DATE OF      PAYMENT. |
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| G) | THE      CLIENT SHALL NOT BE RESPONSIBLE FOR THE PAYMENT OF TAXES APPLICABLE TO THE      INCOME EARNED BY THE INDIVIDUALS RENDERING INDEPENDENT SERVICES FOR SAID      SERVICES BY REASON THAT SAID INDIVIDUALS SHALL NOT HAVE ANY DIRECT      RELATIONSHIP WITH THE CLIENT AND IT SHALL BE THE OBLIGATION OF THE SERVICE      PROVIDER TO PERFORM SAID OBLIGATION BY REASON THAT ANY INCOME EARNED BY      THE INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER RENDERS THE SERVICES      DEPENDS SOLELY AND EXCLUSIVELY ON A RELATIONSHIP BETWEEN THE SERVICE      PROVIDER AND SAID INDIVIDUALS. |
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| H) | IN      THE EVENT OF ANY LEGAL CONTINGENCY THAT MAY ARISE IN CONNECTION WITH ANY      OF THE INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER RENDERS THE      SERVICES, THE CLIENT SHALL HAVE THE OBLIGATION TO PROVIDE TO THE SERVICE      PROVIDER ANY DATA, ELEMENTS AND DOCUMENTATION REQUIRED BY THE SERVICE      PROVIDER SO AS TO SETTLE ANY SUCHCONTINGENCY. |
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| I) | TO      INDEMNIFY THE SERVICE PROVIDER FOR ANY FAILURE TO COMPLY WITH ANY CLAUSE      HEREOF THAT MAY RESULT IN ANY DAMAGE AND/OR LOSS TO THE SERVICE      PROVIDER. |
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| J) | IT      SHALL BE STRICTLY PROHIBITED THAT THE CLIENT DISMISSES, REPREHENDS, OR      PREVENT ANY OF THE INDIVIDUALS THROUGH WHICH THE SERVICE PROVIDER FULFILLS      THE OBJECT HEREOF FROM DEVELOPING THEIR TASKS; FURTHERMORE, THE CLIENT      SHALL NOT BE AUTHORIZED TO SUBJECT SAID INDIVIDUALS TO ANY WORKING OURS BY      REASON THAT SAID INDIVIDUALS ARE NOT SUBORDINATED OR EMPLOYED BY THE      CLIENT. |
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| K) | THE      CLIENT RESERVES THE RIGHT TO SUPERVISE ON A REGULAR BASIS ANY WORK      CONDUCTED BY THE SERVICE PROVIDER, WITHOUT THEREBY CREATING ANY TYPE OF      SUBORDINATION RELATIONSHIP, BUT MERELY TO VERIFY THAT THE SERVICES      REQUIRED ARE BEING EFFICIENTLY RENDERED; TO THAT EFFECT, THE CLIENT MAY      REQUEST REPORTS OR ANY DOCUMENT THAT MAY INFORM THE CLIENT OF THE PROGRESS      OF THE SERVICES RENDERED. |
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| SIGNED      BY THE PARTIES:                |
|--------------------------------------------|
|                                       |   |   |
| MINERA      SANTA RITA, S. DE R.L. DE C.V. |   | CABORCA      INDUSTRIAL, S.A. DE C.V. |
|                                       |   |   |
| /s/ MARCO ANTONIO GALINDO      RAMIREZ     |   | /s/ IGNACIO LIMON  GONZALEZ |
| ENG.      MARCO ANTONIO GALINDO RAMIREZ    |   | C.P.A.      IGNACIO LIMON GONZALEZ |
|                                       |   |   |   |
|                                       | WITNESS |   |   |

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