Riverside Resources Inc. — Audit Report / Information 2019

Feb 29, 2020

February 28, 2020

British Columbia Securities Commission Alberta Securities Commission Ontario Securities Commission TSX Venture Exchange

Dear Sirs / Mesdames:

Re: Capitan Mining Inc. (the “Company”)

We refer to the information circular of Riverside Resources Inc. ("Riverside") dated February 25, 2020 relating to the Plan of Arrangement entered into between the Company and Riverside.

We consent to being named and to the use, in the above-mentioned information circular, of our report dated February 21, 2020 to the directors of the Company on the following financial statements:

Statement of financial position as at the date of incorporation on October 30, 2019.

We report that we have read the information circular and all information therein and have no reason to believe that there are any misrepresentations in the information contained therein that are derived from the financial statements upon which we have reported or that are within our knowledge as a result of our audit of such financial statements. We have complied with Canadian generally accepted standards for an auditor's consent to the use of a report of the auditor included in the information circular, which does not constitute an audit or review of the information circular, as these terms are described in the CPA Canada Handbook – Assurance.

This letter is provided solely for the purpose of assisting the securities commissions and stock exchange to which it is addressed in discharging its responsibilities and should not be used for any other purpose.

Yours very truly,

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DAVIDSON & COMPANY LLP

Chartered Professional Accountants