Mongoose Mining Ltd. — Regulatory Filings 2020

Apr 16, 2020

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April 16, 2020

Filed via SEDAR

To All Applicable Exchanges and Securities Administrators

Subject: Mongoose Mining Ltd. (the “Issuer”) Notice of Meeting and Record Date

Dear Sir/Madam:

We are pleased to confirm the following information with respect to the Issuer's upcoming meeting of securityholders:

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----- Start of picture text ----- Meeting Type: Annual and Special MeetingMeeting Date: June 15, 2020Record Date for Notice of Meeting: May 11, 2020Record Date for Voting: May 11, 2020Beneficial Ownership Determination Date: May 11, 2020Class of Securities Entitled to Vote: Common SharesISIN: CA6093611003Meeting Location: Calgary, ABIssuer sending proxy materials directly to NOBOs: NoIssuer paying for delivery to OBOs: YesNotice and Access for Beneficial Holders: NoNotice and Access for Registered Holders: No----- End of picture text -----

In accordance with applicable securities regulations we are filing this information with you in our capacity as agent of the Issuer.

Yours truly,

ODYSSEY TRUST COMPANY

signed “Paul Bedard”

Paul Bedard Associate, Client Services