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FORTUNA MINING CORP.

For the period ended Dec 31, 2025. Filed Mar 26, 2026.

View on SEC.gov

About this filing

The yearly report of certain Canadian companies, filed under a joint US and Canadian system. It is the main yearly account these companies give US investors, largely as filed in Canada.

FY2025 · Filed Mar 26, 2026

Use the contents to explore the available documents and sections.

FSM$9.62+1.5%Stored close · as of Nov 6, 2026
See the whole filing, with its images and exhibits
Contents

EX-99.1 · DATED: March 23, 2026

DATED: March 23, 2026

CORPORATE OFFICE:MANAGEMENT HEAD OFFICE:
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1111 Melville Street, Suite 820Piso 5, Av. Jorge Chávez #154
Vancouver, BC V6E 3V6, CanadaMiraflores, Lima, Peru
Tel: 604.484.4085Tel: 511.616.6060, ext. 2
Fax: 604.484.4029​

TABLE OF CONTENTS

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PRELIMINARY NOTES1
Cautionary Statement – Forward Looking Statements1
Notice Regarding Non-IFRS Measures5
Cautionary Note to United States Investors Concerning Estimates of Reserves and Resources6
Documents Incorporated by Reference7
Scientific and Technical Information7
Currency7
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CORPORATE STRUCTURE7
Name, Address and Incorporation7
Intercorporate Relationships8
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GENERAL DEVELOPMENT OF THE BUSINESS8
Business of the Company8
Three-Year History and Recent Developments9
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DESCRIPTION OF THE BUSINESS28
General28
Risk Factors31
Material Mineral Properties (see Schedules “A”, “B”, “C” and “D”)62
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DIVIDENDS63
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DESCRIPTION OF CAPITAL STRUCTURE63
Common Shares63
Notes64
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MARKET FOR SECURITIES64
Trading Price and Volume65
Prior Sales65
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DIRECTORS AND EXECUTIVE OFFICERS65
Name, Occupation and Shareholding65
Cease Trade Orders or Bankruptcies67
Penalties or Sanctions68
Conflicts of Interest68
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AUDIT COMMITTEE69
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LEGAL PROCEEDINGS70
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TRANSFER AGENT AND REGISTRAR70
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MATERIAL CONTRACTS70
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INTERESTS OF EXPERTS70
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ADDITIONAL INFORMATION71
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Material Mineral Properties:​
Séguéla Mine, Côte d’IvoireSchedule “A”
Lindero Mine, ArgentinaSchedule “B”
Caylloma Mine, PeruSchedule “C”
Diamba Sud Project, SenegalSchedule “D”
Audit Committee CharterSchedule “E”
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.