Adex Mining Inc. — Regulatory Filings 2021

Oct 6, 2021

September 27, 2021

• TO: British Columbia Securities Commission Alberta Securities Commission Ontario Securities Commission

New Brunswick Financial and Consumer Services Commission Nova Scotia Securities Commission

Dear Sirs/Madams:

– “ ” Re: Notice of Change of Auditors Adex Mining Inc. (the Company )

Pursuant to National Instrument 51-102 Continuous Disclosure Obligations , we have reviewed the information contained in the Notice of Change of Auditor (“Notice”) of the Company dated September 27, 2021 and, based on our knowledge of such information at this time, we agree with the statements made in the Notice pertaining to our firm. We advise that we have no basis to agree or disagree with the comments in the Notice relating to PricewaterhouseCoopers LLP.

Yours very truly,

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Chartered Professional Accountants Vancouver, British Columbia