**Exhibit 23.11**

 

**VIA SEDAR / EDGAR**

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**Ontario Securities Commission, as Principal Regulator**

**British Columbia Securities Commission**

**Alberta Securities Commission**

**United States Securities and Exchange Commission**

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Dear Sirs/Mesdames:

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**Annual Information Formfor the Company’s fiscal year ended December 31, 2017 (the “AIF”) and the Management’s Discussion and Analysisfor the year ended December 31, 2017 (the “MD&A”), incorporated by reference into the Company’s ProspectusSupplement dated October 10, 2017 to the Short Form Base Shelf Prospectus dated June 29, 2017 (the “Prospectus Supplement”)and the Annual Report incorporated by reference into the Company’s registration statement on Form F-10 (Registration No.333-218076) (the “Registration Statement”)**

**Consent of Qualified Person**

 

Reference is made to the Annual Reporton Form 40-F for the fiscal year ended December 31, 2017 of the Company (the “**Form 40-F**”), filed with the UnitedStates Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Reference is also made tothe AIF and the MD&A, and their incorporation by reference: (i) into the Prospectus Supplement, and (ii) as exhibits to andincorporated by reference into the Form 40-F.

 

I hereby consent to: (i) the inclusionof the information under the heading "Updated Mineral Resource and Mineral Reserve Information," consisting of the mineralresource and reserve estimates as of December 31, 2017 for the Yauricocha Mine (the “**Yauricocha Mineral Resource and ReserveEstimate**”), the mineral resource and reserve estimates as of December 31, 2017 for the Bolivar Mine (the “**BolivarMineral Resource and Reserve Estimate**”), and the mineral resource estimates as of December 31, 2017 for the Cusi Mine(the “**Cusi Mineral Resource Estimate**” and, together with the Yauricocha Mineral Resource and Reserve Estimateand the Bolivar Mineral Resource and Reserve Estimate, the “**Updated Mineral Estimates**”), in the AIF and anyamendments thereto, and the incorporation of such estimates in the AIF, (ii) the use of, and inclusion of information derived fromthe report entitled “*NI 43-101 Technical Report on Resources and Reserves, Yauricocha Mine, Yauyos Province, Peru*”dated effective July 31, 2017 (the “**Yauricocha Technical Report**”), the report entitled “*NI 43-101 TechnicalReport on Resources and Reserves, Bolivar Mine, Mexico*” dated effective February 28, 2017 (the “**Bolivar TechnicalReport**”) and the report entitled “*Amended NI 43-101 Technical Report on Resources, Cusi Mine, Mexico*”dated effective August 31, 2017 (the “**Cusi Technical Report**” and together with the Yaurichocha Technical Reportand Bolivar Technical Report, the “**Technical Reports**”) as disclosed in the MD&A, (iii) incorporation ofthe AIF and MD&A in the Form 40-F and any amendments thereto, and in the Company's Registration Statement, including the prospectuscontained therein, as amended or supplemented, (iv) incorporation by reference of the AIF, MD&A and any amendments thereto,into the Prospectus Supplement and (iii) being named in, and the use of the Updated Mineral Estimates and Technical Reports orportions thereof prepared, reviewed and/or approved by me, in the AIF, MD&A and Form 40-F.

 

I also hereby confirm that I have readthe AIF and MD&A and have no reason to believe that there are any misrepresentations in the information contained therein thatare derived from the Updated Mineral Estimates or Technical Reports or within my knowledge as a result of the services I performedin connection with the Updated Mineral Estimates or Technical Reports.

 

Dated: March 22, 2018