Integra Resources — Regulatory Filings 2021

Apr 16, 2021

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TSX TRUST COMPANY

VIA ELECTRONIC TRANSMISSION

April 16, 2021

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE: INTEGRA RESOURCES CORP Confirmation of Notice of Record and Meeting Dates

We are pleased to confirm that Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities.

We advise the following with respect to the upcoming Annual General Meeting of Security Holders for the subject issuer:

1 ISIN: CA45826T3010 CUSIP: 45826T301 2 Date Fixed for the Meeting: June 29, 2021 3 Record Date for Notice: May 13, 2021 4 Record Date for Voting: May 13, 2021 5 Beneficial Ownership Determination Date: May 13, 2021 6 Classes or Series of Securities that entitle COMMON the holder to receive Notice of the Meeting: 7 Classes or Series of Securities that entitle COMMON the holder to vote at the meeting: 8 Business to be conducted at the meeting: Annual General 9 Notice-and-Access: Registered Shareholders: YES Beneficial Holders: YES Stratification Level: Not Applicable 10 Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners: YES 11 Issuer paying for delivery to Objecting Beneficial Owners: NO

Yours truly, TSX Trust Company

• " Rosa Garofalo " Senior Relationship Manager Rosa.Garofalo@tmx.com

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