Altan Nevada Announces Change of Auditor

VANCOUVER, BC (October 27, 2021) - Altan Nevada Minerals Limited (TSXV: ANE) ("Altan Nevada" or the "Company") announces that it has changed its auditor from Davidson & Company LLP (the "Former Auditor") to HLB Mann Judd (WA Partnership) (the "Successor Auditor") effective October 20, 2021 (the "Effective Date").

At the request of the Company, the Former Auditor resigned as the auditor of the Company and the Board of Directors of the Company appointed the Successor Auditor as the new auditor of the Company as of the Effective Date until the close of the Company's next annual meeting of shareholders schedule to take place on December 9, 2021.

There were no modifications of opinion contained in the Former Auditor's reports on the Company's annual financial statements for the period commencing at the beginning of the two most recently completed financial years and ending on the Effective Date. In addition, there were no "reportable events" (as defined in National Instrument 51-102 Continuous Disclosure Obligations ("NI 51-102")) between the Company and the Former Auditor.

In accordance with NI 51-102, the Notice of Change of Auditor, together with the required letters from the Former Auditor and the Successor Auditor, have been reviewed by the Company's Audit Committee and Board of Directors and filed on SEDAR.

On behalf of Altan Nevada Minerals Limited

For more information contact:

Paul Stephen Chief Executive Officer Email: [email protected] +61 9322 1788

Cautionary Statement on Forward-Looking Information

This release may contain forward-looking statements. Forward-looking statements involve known and unknown risks, uncertainties, and other factors which may cause the actual results, performance, or achievements of the Company to be materially different from any future results, performance, or achievements expressed or implied by the forward-looking statements. These forward-looking statements are based on management's current expectations and beliefs but given the uncertainties, assumptions and risks, readers are cautioned not to place undue reliance on such forward-looking statements or information. Actual results may differ materially from those currently anticipated in such statements, and the Company undertakes no obligation to update such statements, except as required by law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Altan Nevada Minerals Limited I www.altnev.com Level 2, 2 Richardson Street, West Perth 6005, Western Australia