GR SILVER MINING LTD. — Regulatory Filings 2020

Jun 12, 2020

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CERTIFICATE OF QUALIFIED PERSON

Marcelo Filipov, P.Geo.

I, Marcelo Filipov, P.Geo., of Toronto, Ontario do hereby certify:

• I am a Senior Geologist at WSP Canada Inc. with a business address at 2300 Yonge Street, 21[st] Floor, Toronto, Ontario M4P 1E4.

• This certificate applies to the technical report entitled San Marcial Project Resource Estimation and Technical Report Sinaloa, Mexico, with an effective date of March 18, 2019 (the ‘Technical Report’).

• I am a graduate of the Geoscience Institute, University of Sao Paulo, Sao Paulo, Brazil. I am a member in good standing of Association of Professional Geoscientists of Ontario (License #2415). My relevant experience includes 22 years in operations and consulting. For the past 14 years, I have experience with geological and resource modeling of over twenty-five deposits including three epithermal deposits (one in Nevada and two in Nicaragua. During this time, I was employed by Gemcom Brazil, Vale S.A., Dassault Systèmes Geovia Inc. and WSP Canada Inc. In addition, while working for Dassault Systèmes Geovia Inc. and Gemcom Brazil, I was a software instructor, teaching estimation procedures using the Geovia software platform. I am a ‘Qualified Person’ for the purposes of National Instrument 43-101 (the ‘Instrument’).

• My most recent personal inspection of the Property was from November 12 to 16, 2018 inclusive.

• I am responsible for Sections 11, 12, and 14 of the Technical Report.

• I am independent of Goldplay Exploration Ltd. as defined by Section 1.5 of the Instrument.

• I have no prior involvement with the Property that is the subject of the Technical Report.

• I have read the Instrument and the sections of the Technical Report that I am responsible for have been prepared in compliance with the Instrument.

• As of the date of this certificate, to the best of my knowledge, information, and belief, the sections of the Technical Report that I am responsible for contain all scientific and technical information that is required to be disclosed to make the Technical Report not misleading.

Signed and dated this 10[th] day of June 2020 at Toronto, Ontario.

Original signed and stamped by

Marcelo Filipov, P.Geo. Senior Geologist WSP Canada Inc.

San Marcial Project Resource Estimation and Technical Report Project No. 181-15255-00_RPT-01_R4 Goldplay Exploration Ltd..

WSP