Adex Mining Inc. — Audit Report / Information 2021

Oct 6, 2021

October 1, 2021

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• To: British Columbia Securities Commission Alberta Securities Commission Ontario Securities Commission Financial and Consumer Services Commission (New Brunswick) Nova Scotia Securities Commission

We have read the statements made by Adex Mining Inc. in the attached copy of change of auditor notice dated September 27, 2021, which we understand will be filed pursuant to Section 4.11 of National Instrument 51-102.

We agree with the statements in the change of auditor notice dated September 27, 2021.

Yours very truly, DRAFT

Chartered Professional Accountants

PricewaterhouseCoopers LLP

PwC Tower, 18 York Street, Suite 2600, Toronto, Ontario, Canada M5J 0B2 T: +1 416 863 1133, F: +1 416 365 8215, www.pwc.com/ca

“PwC” refers to PricewaterhouseCoopers LLP, an Ontario limited liability partnership.