Osisko Development Corp. — Annual Report 2021

Jun 9, 2021

Extractive Sector Transparency Measures Act - Annual Report

Reporting Entity Name Osisko Development Corp Reporting Entities May Reporting Year From 2020-01-01 To: 2020-12-31 Date submitted 2021-06-04 Insert Their Brand/Logo here Original Submission Report Version Reporting Entity ESTMA Identification Number E335878 Amended Report 2 Other Subsidiaries Included (optional field) Not Consolidated Not Substituted

Attestation by Reporting Entity

In accordance with the requirements of the ESTMA, and in particular section 9 thereof, I attest I have reviewed the information contained in the ESTMA report for the entity(ies) listed above. Based on my knowledge, and having exercised reasonable diligence, the information in the ESTMA report is true, accurate and complete in all material respects for the purposes of the Act, for the reporting year listed above.

Full Name of Director or Officer of Reporting Entity Alexander Dann Date 2021-06-04 Position Title Chief Financial Officer and Vice President, Finance

Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report
Reporting Year	From:	2020-01-01	To:	2020-12-31
Reporting Entity Name	Osisko Development Corp					Currency of the Report	CAD
Reporting Entity ESTMA Identification Number	E335878
Subsidiary Reporting Entities (if necessary)
Payments by Payee
Country	Payee Name1	Departments, Agency, etc… within Payee that Received Payments2	Taxes	Royalties	Fees	Production Entitlements	Bonuses	Dividends	Infrastructure Improvement Payments	Total Amount paid to Payee	Notes34
Canada -British Columbia	Provide of British Columbia				436,802				164,850	601,652	BC Hydro, Minister of Finance, Mineral Title Online
Canada	Lhtako Dene Nation				470,664					470,664
Canada	Canada Revenue Agency	Receiver General of Canada	137,787							137,787
Additional Notes:	Consistency Filing with Sedar and AMF

Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report	Extractive Sector Transparency Measures Act - Annual Report
Reporting Year	From:	2020-01-01	To:	2020-12-31
Reporting Entity Name	Osisko Development Corp					Currency of the Report	CAD
Reporting Entity ESTMA Identification Number	E335878
Subsidiary Reporting Entities (if necessary)
Payments by Project
Country	Project Name1	Taxes	Royalties	Fees	Production Entitlements	Bonuses	Dividends	Infrastructure Improvement Payments	Total Amount paid by Project	Notes23
Canada -British Columbia	Barkerville	137,787		907,466				164,850	1,210,103
Additional Notes3:	Consistency Filing with Sedar and AMF