FSM / Fortuna Mining Corp. - Arquivamentos da SEC, Relatório Anual, Declaração de Procuração

Fortuna Mining Corp.
US ˙ NYSE

Estatísticas Básicas
LEI 5493003Q88RVK7CW4735
CIK 1341335
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Fortuna Mining Corp.
SEC Filings (Chronological Order)
Esta página fornece uma lista completa e cronológica de Arquivamentos da SEC, excluindo os arquivamentos de propriedade que fornecemos em outro lugar.
May 28, 2026 EX-99.1

Forward-Looking Statements

Exhibit 99.1 NEWS RELEASE Fortuna publishes its 2025 Sustainability Report Vancouver, May 28, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce the publication of its eighth annual Sustainability Report, highlighting 2025 progress across governance, corporate strategy, risk management, and operational performance. The report outlines Fortuna’s continued focus on the sustaina

May 28, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

May 20, 2026 EX-99.4

FORTUNA MINING CORP. Under securities regulations, a reporting issuer must send annually a form to holders to request the Interim Financial Statements and MD&A and/or the Annual Financial Statements and MD&A. If you would like to receive the report(s

Exhibit 99.4 FORTUNA MINING CORP. Under securities regulations, a reporting issuer must send annually a form to holders to request the Interim Financial Statements and MD&A and/or the Annual Financial Statements and MD&A. If you would like to receive the report(s) by mail, please make your selection and return to the address as noted or register online at www.computershare.com/mailinglist. Alterna

May 20, 2026 EX-99.1

NOTIFICATION OF NOTICE AND ACCESS TO SHAREHOLDERS NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

Exhibit 99.1 NOTIFICATION OF NOTICE AND ACCESS TO SHAREHOLDERS AND NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS NOTICE IS HEREBY GIVEN that the Annual General Meeting (the “Meeting”) of the shareholders of Fortuna Mining Corp. (the “Company”) will be held at the office of Blake, Cassels & Graydon LLP, 1133 Melville Street, Suite 3500, Vancouver, British Columbia V6E 4E5 on Thursday, June 25, 2

May 20, 2026 EX-99.3

FORTUNA MINING CORP. 320 Bay Street, 14th Floor Toronto, ON M5H 4A6 www.computershare.com Security Class Holder Account Number Form of Proxy - Annual General Meeting to be held on Thursday, June 25, 2026 This Form of Proxy is solicited by and on beha

Exhibit 99.3 FORTUNA MINING CORP. 320 Bay Street, 14th Floor Toronto, ON M5H 4A6 www.computershare.com Security Class Holder Account Number Form of Proxy - Annual General Meeting to be held on Thursday, June 25, 2026 This Form of Proxy is solicited by and on behalf of Management. Notes to proxy 1. Every holder has the right to appoint some other person or company of their choice, who need not be a

May 20, 2026 EX-99.2

NOTIFICATION OF NOTICE AND ACCESS TO SHAREHOLDERS NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

Exhibit 99.2 May 7, 2026 Fellow Shareholders: On behalf of the Board of Directors and management of Fortuna Mining Corp., I write in connection with the 2026 annual general meeting of shareholders. The meeting will be held at the office of Blake, Cassels & Graydon LLP, 1133 Melville Street, Suite 3500, Vancouver, B.C., V6E 4E5 on Thursday, June 25, 2026 at 10:00 a.m. (Pacific time). The accompanyi

May 20, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

May 7, 2026 EX-99.3

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.3 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Jorge Ganoza Durant, Chief Executive Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended March 31, 2026. 2. No misrepr

May 7, 2026 EX-99.5

Fortuna generates record quarterly free cash flow1 of $174.0 million and adjusted attributable net income1 of $111.0 million

Fortuna Reports Results for the First Quarter 2026 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Fortuna generates record quarterly free cash flow1 of $174.

May 7, 2026 EX-99.4

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.4 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Luis Ganoza Durant, Chief Financial Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended March 31, 2026. 2. No misrepre

May 7, 2026 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2026 As of May 6, 2026

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2026 As of May 6, 2026 Fortuna Mining Corp.

May 7, 2026 EX-99.1

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three months ended March 31, 2026 and 2025

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three months ended March 31, 2026 and 2025 (UNAUDITED) Fortuna Mining Corp.

May 7, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

April 23, 2026 EX-99.1

Fortuna Reports 15% Increase YoY in Consolidated Mineral Reserves and updates estimate of Sunbird deposit, Séguéla

Exhibit 99.1 NEWS RELEASE Fortuna Reports 15% Increase YoY in Consolidated Mineral Reserves and updates estimate of Sunbird deposit, Séguéla Vancouver, British Columbia, April 23, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) provides updated consolidated Mineral Reserve and Mineral Resource estimates for its operating mines and projects in West Africa and Latin America. Fortuna successfully i

April 23, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 22, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 22, 2026 EX-99.1

Fortuna to release first quarter 2026 financial results on May 6, 2026; Conference call at 12 p.m. Eastern time on May 7, 2026

Exhibit 99.1 NEWS RELEASE Fortuna to release first quarter 2026 financial results on May 6, 2026; Conference call at 12 p.m. Eastern time on May 7, 2026 Vancouver, British Columbia, April 22, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its financial statements and MD&A for the first quarter of 2026 on Wednesday, May 6, 2026, after market close. A conference cal

April 20, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 20, 2026 EX-99.1

Elev.

Exhibit 99.1 NEWS RELEASE Fortuna Establishes Presence in the Guyana Shield Through Quartzstone Earn-In Agreement Vancouver, British Columbia, April 20, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce it has entered into an earn-in agreement with Qstone Inc., a private Guyanese company, pursuant to which Fortuna may earn up to a 70% interest in the Quartzstone Project, a l

April 17, 2026 EX-99.1

C ode o f C onduc t an d Busines s Ethics

Exhibit 99.1 C ode o f C onduc t an d Busines s Ethics C on t ent s A Message From Our P residen t , CE O , and Dir e c t or ................ .3 Li v e Our V alues .......................................................................... .3 K n o w Our C ode .......................................................................... .4 Who Must Foll o w Our C ode 4 Speaking Up 4 No R etaliation 5

April 17, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 17, 2026 EX-99.1

Fortuna Renews Share Buyback Program

Exhibit 99.1 NEWS RELEASE Fortuna Renews Share Buyback Program Vancouver, April 17, 2026 – Fortuna Mining Corp. (TSX: FVI) (NYSE: FSM) (“Fortuna” or the “Company”) announced today that its Board of Directors has approved the renewal of its normal course issuer bid (“NCIB”) to purchase up to five percent of its outstanding common shares as at April 10, 2026. An aggregate of up to 15,227,869 common

April 17, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 9, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 9, 2026 EX-99.1

Fortuna reports production of 72,872 gold equivalent ounces in the first quarter of 2026 and provides a business update

Exhibit 99.1 NEWS RELEASE Fortuna reports production of 72,872 gold equivalent ounces in the first quarter of 2026 and provides a business update Vancouver, British Columbia, April 9, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports production results for the first quarter of 2026 from its three operating mines in West Africa and Latin America. All figures presented in this news release a

April 2, 2026 EX-99.1

Re: Notice of Meeting and Record Dates Under NI 54-101

Exhibit 99.1 April 2, 2026 TO: All Securities Commissions of Canada Toronto Stock Exchange Re: Notice of Meeting and Record Dates Under NI 54-101 In accordance with NI 54-101, we hereby give you notice of a meeting of the shareholders for the undermentioned issuer: Issuer: Fortuna Mining Corp. Meeting Date: Thursday, June 25, 2026 Record Date for Notice and Voting: Friday, May 1, 2026 Beneficial O

April 2, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 26, 2026 EX-99.9

CONSENT OF AUTHOR / EXPERT PATRICIA GONZALEZ

EXHIBIT 99.9 CONSENT OF AUTHOR / EXPERT PATRICIA GONZALEZ I hereby consent to the use of my name, Patricia Gonzalez, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Caylloma Mine, Caylloma District, Peru” dated effective December 31, 2023 evaluating the Caylloma Mine of Fortuna Mining Corp. (the “Company”), and the information contained in said technical report

March 26, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 26, 2026 EX-99.13

CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.13 CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jorge Ganoza Durant, certify that: 1. I have reviewed this annual report on Form 40-F of Fortuna Mining Corp. (the “issuer”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or om

March 26, 2026 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 40-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☑ ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2025 Commission File Number: 001-35297 FORTUNA MINING CORP. (Exact name of Registrant as specified

March 26, 2026 EX-99.15

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.15 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Fortuna Mining Corp. (the “Company”) on Form 40-F for the fiscal year ended December 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jorge Ganoza Durant, President, Chief Exe

March 26, 2026 EX-99.1

Fortuna files Form 40-F, Annual Report

Exhibit 99.1 NEWS RELEASE Fortuna files Form 40-F, Annual Report Vancouver, British Columbia, March 26, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it has filed its annual report on Form 40-F for the fiscal year ended December 31, 2025, with the U.S. Securities and Exchange Commission (“SEC”). The Form 40-F, which includes the Company’s audited consolidated financial statement

March 26, 2026 EX-99.12

CONSENT OF AUTHOR / EXPERT RYDA PEUNG

EXHIBIT 99.12 CONSENT OF AUTHOR / EXPERT RYDA PEUNG I hereby consent to the use of my name, Ryda Peung, and reference to my name, the technical report entitled “Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2025 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), and the information contained in said technical report described or incorporated by reference in the C

March 26, 2026 EX-99.5

CONSENT OF AUTHOR / EXPERT ERIC CHAPMAN

EXHIBIT 99.5 CONSENT OF AUTHOR / EXPERT ERIC CHAPMAN I hereby consent to: 1. the use of my name, Eric Chapman, and reference to my name, the technical report entitled “Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2025 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mine and Arizaro Project, Sal

March 26, 2026 EX-99.1

ANNUAL INFORMATION FORM For the Fiscal Year Ended December 31, 2025 DATED: March 23, 2026

Exhibit 99.1 ANNUAL INFORMATION FORM For the Fiscal Year Ended December 31, 2025 DATED: March 23, 2026 CORPORATE OFFICE: MANAGEMENT HEAD OFFICE: 1111 Melville Street, Suite 820 Piso 5, Av. Jorge Chávez #154 Vancouver, BC V6E 3V6, Canada Miraflores, Lima, Peru Tel: 604.484.4085 Tel: 511.616.6060, ext. 2 Fax: 604.484.4029 TABLE OF CONTENTS PRELIMINARY NOTES 1 Cautionary Statement – Forward Looking S

March 26, 2026 EX-99.16

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.16 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Fortuna Mining Corp. (the “Company”) on Form 40-F for the fiscal year ended December 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Luis Ganoza Durant, Chief Financial Offic

March 26, 2026 EX-99.2

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2025 and 2024

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2025 and 2024 MANAGEMENT’S RESPONSIBILITY FOR THE FINANCIAL STATEMENTS Management of Fortuna Mining Corp.

March 26, 2026 EX-99.10

CONSENT OF AUTHOR / EXPERT DMITRY TOLSTOV

EXHIBIT 99.10 CONSENT OF AUTHOR / EXPERT DMITRY TOLSTOV I hereby consent to the use of my name, Dmitry Tolstov, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mine and Arizaro Project, Salta Province, Argentina” dated effective December 31, 2022 evaluating the Lindero property of Fortuna Mining Corp. (the “Company”), and the information contained in sai

March 26, 2026 EX-99.3

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2025 As of February 18, 2026

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2025 As of February 18, 2026 Fortuna Mining Corp.

March 26, 2026 EX-99.14

CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.14 CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Luis Ganoza Durant, certify that: 1. I have reviewed this annual report on Form 40-F of Fortuna Mining Corp. (the “issuer”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omi

March 26, 2026 EX-99.6

CONSENT OF AUTHOR / EXPERT RAUL ESPINOZA

EXHIBIT 99.6 CONSENT OF AUTHOR / EXPERT RAUL ESPINOZA I hereby consent to: 1. the use of my name, Raul Espinoza, and reference to my name, the technical report entitled “Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2025 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mine and Arizaro Project, S

March 26, 2026 EX-99.11

CONSENT OF AUTHOR / EXPERT LEENDERT (LEON) LORENZEN

EXHIBIT 99.11 CONSENT OF AUTHOR / EXPERT LEENDERT (LEON) LORENZEN I hereby consent to the use of my name, Leendert (Leon) Lorenzen, and reference to my name, the technical report entitled “Diamba Sud Gold Project, Kédougou Region, Senegal” dated effective October 15, 2025 evaluating the Diamba Sud Project of Fortuna Mining Corp. (the “Company”), and the information contained in said technical repo

March 26, 2026 EX-99.4

Consent of Independent Registered Public Accounting Firm

EXHIBIT 99.4 Consent of Independent Registered Public Accounting Firm The Board of Directors Fortuna Mining Corp. We consent to the use of: ● our report dated February 18, 2026 on the consolidated financial statements of Fortuna Mining Corp. (the “Entity”) which comprise the consolidated statements of financial position as of December 31, 2025 and 2024, the related consolidated statements of incom

March 26, 2026 EX-99.7

CONSENT OF AUTHOR / EXPERT PAUL WEEDON

EXHIBIT 99.7 CONSENT OF AUTHOR / EXPERT PAUL WEEDON I hereby consent to the use of my name, Paul Weedon, and reference to my name, the technical report entitled “Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2025 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Caylloma Mine, Caylloma District, Peru” dat

March 26, 2026 EX-99.8

CONSENT OF AUTHOR / EXPERT MATHIEU VEILLETTE

EXHIBIT 99.8 CONSENT OF AUTHOR / EXPERT MATHIEU VEILLETTE I hereby consent to the use of my name, Mathieu Veillette, and reference to my name, the technical report entitled “Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2025 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mine and Arizaro Projec

March 23, 2026 EX-99.3

CONSENT OF AUTHOR

Exhibit 99.3 CONSENT OF AUTHOR March 23, 2026 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (Pri

March 23, 2026 EX-99.1

Drilled Interval

Exhibit 99.1 Séguéla Gold Mine, Côte d’Ivoire Technical Report, Effective Date: December 31, 2025 Prepared for Fortuna Mining Corp. Prepared by Eric Chapman, P.Geo. Senior Vice President of Technical Services - Fortuna Mining Corp. Paul Weedon, MAIG Senior Vice President of Exploration - Fortuna Mining Corp. Raul Espinoza, FAusIMM (CP) Director of Technical Services - Fortuna Mining Corp. Mathieu

March 23, 2026 EX-99.6

CONSENT OF AUTHOR

Exhibit 99.6 CONSENT OF AUTHOR March 23, 2026 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (Pri

March 23, 2026 EX-99.5

CONSENT OF AUTHOR

Exhibit 99.5 CONSENT OF AUTHOR March 23, 2026 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (Pri

March 23, 2026 EX-99.4

CONSENT OF AUTHOR

Exhibit 99.4 CONSENT OF AUTHOR March 23, 2026 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (Pri

March 23, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 23, 2026 EX-99.2

CONSENT OF AUTHOR

Exhibit 99.2 CONSENT OF AUTHOR March 23, 2026 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (Pri

February 25, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

February 25, 2026 EX-99.1

Fortuna intersects 6.0 g/t gold over 24.1 meters at Southern Arc, Diamba Sud Project, Senegal

Exhibit 99.1 NEWS RELEASE Fortuna intersects 6.0 g/t gold over 24.1 meters at Southern Arc, Diamba Sud Project, Senegal Vancouver, British Columbia, February 25, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report the latest batch of exploration drilling results from the Southern Arc deposit at its Diamba Sud Gold Project located in Senegal. A further 44 reverse circulation and

February 19, 2026 EX-99.3

Record quarterly and annual free cash flow1 of $132.3 million and $330.0 million as Fortuna delivers on its operational plan and achieves production guidance

Fortuna Reports Results for the Fourth Quarter and Full Year 2025 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Record quarterly and annual free cash flow1 of $132.

February 19, 2026 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2025 As of February 18, 2026

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2025 As of February 18, 2026 Fortuna Mining Corp.

February 19, 2026 EX-99.1

Tonnes

Exhibit 99.1 NEWS RELEASE Fortuna expands Indicated Mineral Resource by 73% to 1.25 million gold ounces, Diamba Sud Project, Senegal Vancouver, British Columbia, February 19, 2026 - Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce an updated Mineral Resource estimate for the Diamba Sud Gold Project, effective January 16, 2026. Indicated Mineral Resources total 1.25 million ounces

February 19, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, BC, Canada V6E 3V6 (Address of pr

February 19, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

February 19, 2026 EX-99.1

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2025 and 2024

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2025 and 2024 MANAGEMENT’S RESPONSIBILITY FOR THE FINANCIAL STATEMENTS Management of Fortuna Mining Corp.

February 12, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

February 12, 2026 EX-99.1

Depth2 From

Exhibit 99.1 NEWS RELEASE Fortuna Extends High Grade Gold Mineralization at Sunbird, Including 6.1 g/t Au over 18.9 meters, Séguéla Mine, Côte d’Ivoire Vancouver, British Columbia, February 12, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report results from ongoing exploration drilling at the Sunbird deposit, located at the Séguéla Mine in Côte d’Ivoire (see Figure 1). Recent d

February 10, 2026 EX-99.1

- 2 -

Exhibit 99.1 NEWS RELEASE Fortuna Submits Exploitation Permit Application for the Diamba Sud Gold Project, Senegal Vancouver, British Columbia, February 10, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it submitted an application for an exploitation permit for the Diamba Sud Gold Project to the Ministry of Energy, Petroleum, and Mines on February 4, 2026. The Company continues

February 10, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

January 20, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2026 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

January 20, 2026 EX-99.1

Fortuna Expands Mineral Reserve Gold Ounces by 31% and Extends Life of Mine to Over 9 Years at the Séguéla Mine, Côte d'Ivoire

Exhibit 99.1 NEWS RELEASE Fortuna Expands Mineral Reserve Gold Ounces by 31% and Extends Life of Mine to Over 9 Years at the Séguéla Mine, Côte d'Ivoire Vancouver, January 20, 2026 - Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce updated Mineral Reserves and Mineral Resources, excluding Mineral Reserves, for the Séguéla Mine as of December 31, 2025. Mineral Reserves total 1.54

January 15, 2026 EX-99.1

Fortuna Achieves 2025 Production Guidance, Delivering

Exhibit 99.1 NEWS RELEASE Fortuna Achieves 2025 Production Guidance, Delivering 317,001 GEO, and Issues 2026 Outlook Vancouver, January 15, 2026 - Fortuna Mining Corp. (NYSE: FSM) (TSX: FVI) reports production results for the fourth quarter and full year 2025 from its three operating mines in Latin America and West Africa. In 2025, Fortuna achieved its annual production guidance, delivering 317,00

January 15, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2026 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

January 8, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2026 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2026 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

January 8, 2026 EX-99.1

Fortuna reports progress on its share buyback program

Exhibit 99.1 NEWS RELEASE Fortuna reports progress on its share buyback program Vancouver, January 8, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report that, from Tuesday, December 23, 2025, through Wednesday, January 7, 2026, the Company repurchased an aggregate of 1,700,000 common shares on the open market of the New York Stock Exchange under its normal course issuer bid (NC

December 8, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2025 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

December 8, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna Expands Southern Arc Mineralization with Drill Intercept of 1.7 g/t Au over 29.6 meters and a further 2.0 g/t Au over 20.0 meters from DSDD574 at the Diamba Sud Gold Project, Senegal Vancouver, December 8, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report additional exploration drilling results from the Southern Arc deposit at its Diamba Sud G

December 3, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna Awards the Séguéla Mine Plant Expansion Study, Côte d’Ivoire Vancouver, December 3, 2025 - Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce that Lycopodium Minerals Canada Ltd. has been selected to undertake Séguéla’s Processing Plant Expansion Options Study (the “Study”), supporting Fortuna´s next phase of growth in Côte d’Ivoire. Key Highlights

December 3, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2025 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

November 28, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

November 28, 2025 EX-99.6

CONSENT OF AUTHOR

Exhibit 99.6 CONSENT OF AUTHOR November 26, 2025 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (

November 28, 2025 EX-99.3

CONSENT OF AUTHOR

Exhibit 99.3 CONSENT OF AUTHOR November 26, 2025 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (

November 28, 2025 EX-99.4

CONSENT OF AUTHOR

Exhibit 99.4 CONSENT OF AUTHOR November 26, 2025 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (

November 28, 2025 EX-99.7

Fortuna Files PEA Technical Report Highlighting the Development Potential of the Diamba Sud Gold Project, Senegal

Exhibit 99.7 NEWS RELEASE Fortuna Files PEA Technical Report Highlighting the Development Potential of the Diamba Sud Gold Project, Senegal Vancouver, November 26, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce that, in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects, it has filed the technical report entitled “Diamba Sud Gold Pro

November 28, 2025 EX-99.1

EOH Depth

Exhibit 99.1 Diamba Sud Gold Project, Kédougou Region, Senegal Technical Report, Effective Date: October 15, 2025 Prepared for Fortuna Mining Corp. Prepared by Eric Chapman Senior Vice President of Technical Services - Fortuna Mining Corp. Paul Weedon Senior Vice President of Exploration - Fortuna Mining Corp. Raul Espinoza Director of Technical Services - Fortuna Mining Corp. Mathieu Veillette Di

November 28, 2025 EX-99.5

CONSENT OF AUTHOR

Exhibit 99.5 CONSENT OF AUTHOR November 26, 2025 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (

November 28, 2025 EX-99.2

CONSENT OF AUTHOR

Exhibit 99.2 CONSENT OF AUTHOR November 26, 2025 VIA SEDAR+ British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission Nova Scotia Securities Commission Securities, Financial and Consumer Services Commission (New Brunswick) Office of the Superintendent of Securities (

November 19, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

November 19, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna Expands Mineral Reserves and Mineral Resources for the Séguéla Mine, Côte d'Ivoire Vancouver, November 18, 2025 - Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce updated Mineral Reserves and Mineral Resources excluding Mineral Reserves for the Séguéla Mine, reporting 1.2 million ounces of gold in Mineral Reserves, 794,000 ounces of gold in Indic

November 6, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

November 6, 2025 EX-99.1

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and nine months ended September 30, 2025 and 2024

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and nine months ended September 30, 2025 and 2024 (UNAUDITED) Fortuna Mining Corp.

November 6, 2025 EX-99.3

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.3 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Jorge Ganoza Durant, Chief Executive Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended September 30, 2025. 2. No mis

November 6, 2025 EX-99.5

Three months ended

NEWS RELEASE Fortuna Reports Results for the Third Quarter of 2025 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Vancouver, November 5, 2025: Fortuna Mining Corp.

November 6, 2025 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2025 As of November 5, 2025

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2025 As of November 5, 2025 Fortuna Mining Corp.

November 6, 2025 EX-99.4

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.4 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Luis Ganoza Durant, Chief Financial Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended September 30, 2025. 2. No misr

October 30, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

October 30, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna intersects 7.3 g/t Au over 16.1 meters and defines second underground shoot at Sunbird, Séguéla Mine, Côte d’Ivoire Vancouver, October 30, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report results from ongoing exploration drilling at the Sunbird Deposit, located at the Séguéla Mine in Côte d’Ivoire. Recent drilling has successfully extended hi

October 27, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

October 27, 2025 EX-99.1

Fortuna to release third quarter 2025 financial results on November 5, 2025; Conference call at 12 p.m. Eastern time on November 6, 2025

Exhibit 99.1 NEWS RELEASE Fortuna to release third quarter 2025 financial results on November 5, 2025; Conference call at 12 p.m. Eastern time on November 6, 2025 Vancouver, October 27, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its financial statements and MD&A for the third quarter of 2025 on Wednesday, November 5, 2025, after market close. A conference call

October 15, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna delivers robust PEA for Diamba Sud Gold Project in Senegal: After-tax IRR of 72% and NPV5% of US$563 million using US$2,750 per ounce (All financial information contained herein are expressed in US dollars unless otherwise stated) Vancouver, October 15, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report the results of the Preliminary Economic A

October 15, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

October 8, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

October 8, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna delivers production of 72,462 gold equivalent ounces for the third quarter of 2025 Vancouver, October 8, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports production results for the third quarter of 2025 from its three operating mines located in West Africa and Latin America. Q3 2025 highlights · Gold equivalent production of 72,462 ounces4 compared to 73,

October 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

October 7, 2025 EX-99.1

Fortuna Files Environmental and Social Impact Assessment for the Diamba Sud Gold Project in Senegal and provides update on

Exhibit 99.1 NEWS RELEASE Fortuna Files Environmental and Social Impact Assessment for the Diamba Sud Gold Project in Senegal and provides update on Preliminary Economic Assessment status Vancouver, October 7, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports that it has filed an Environmental and Social Impact Assessment (ESIA) for the Diamba Sud Gold Project with the Direction de la Régl

October 2, 2025 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna expands West African presence, forms exploration alliance in Guinea with DeSoto Resources Vancouver, October 2, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce it has executed a binding Heads of Agreement (HOA) with DeSoto Resources Limited, an Australian-listed gold exploration company, to establish an exploration alliance and joint ventu

October 2, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

September 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

September 10, 2025 EX-99.1

0.15% Cu 0.12% Cu

Exhibit 99.1 NEWS RELEASE Fortuna advances $19 million generative exploration program across Côte d’Ivoire, Mexico, and Argentina Vancouver, September 10, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its $19 million generative exploration program across its portfolio of projects in Côte d’Ivoire, Mexico, and Argentina. Paul Weedon, Senior Vice President of E

September 9, 2025 EX-2.01

Extractive Sector Transparency Measures Act – Annual Report for the year ended December 31, 2024

EXHIBIT 2.01 Extractive Sector Transparency Measures Act – Annual Report for the year ended December 31, 2024 Extractive Sector Transparency Measures Act - Annual Report Reporting Entity Name Fortuna Silver Mines Inc. Reporting Year From 1/1/2024 To: 12/31/2024 Date submitted 4/19/2025 Reporting Entity ESTMA Identification Number E929085 Other Subsidiaries Included (optional field) Not Consolidate

September 9, 2025 EX-2.01.SCH

EX-2.01.SCH

Seguela Mine [Member] Seguela Mine [Member] Seguela Mine Yaramoko Mine [Member] Yaramoko Mine [Member] Yaramoko Mine San Jose Mine [Member] San Jose Mine [Member] San Jose Mine Lindero [Member] Lindero [Member] Lindero Caylloma [Member] Caylloma [Member] Caylloma CTE D'IVOIRE BURKINA FASO MEXICO ARGENTINA PERU Federal Government of Cote d'Ivoire, Tax Authority [Member] Federal Government of Cote d

September 9, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report FORTUNA MINING CORP. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report FORTUNA MINING CORP. (Exact name of the registrant as specified in its charter) British Columbia, Canada 001-35297 N/A (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) Suite 820, 1111 Melville Street, Vancouver, Br

September 2, 2025 EX-FILING FEES

Security Type

Calculation of Filing Fee Tables F-10 FORTUNA MINING CORP. Table 1: Newly Registered Securities ☐Not Applicable Security Type Security Class Title Fee Calculation Rule or Instruction Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Shares (no par value) 457(o) Other Subscription Receipts 457(o) Other Units

September 2, 2025 EX-99.1

Fortuna to present at Mining Forum Americas 2025 in Colorado Springs, USA

Exhibit 99.1 NEWS RELEASE Fortuna to present at Mining Forum Americas 2025 in Colorado Springs, USA Vancouver, September 2, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce that it will be attending Mining Forum Americas, which is being held at the Broadmoor Hotel & Resort in Colorado Springs, USA, from September 14 to 17, 2025. Jorge A. Ganoza, President, Chief Executive O

September 2, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

September 2, 2025 F-10

As filed with the Securities and Exchange Commission on August 29, 2025

As filed with the Securities and Exchange Commission on August 29, 2025 Registration No.

September 2, 2025 F-X

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING A. Name of issuer or person filing (“Filer”): FORTUNA MINING CORP. B. (1) This is an [check one]: x original filing for the Filer. ¨ amended filing for the Filer. (2) Check the following box if you are filing the Form F-X in paper in accordance with Regulatio

September 2, 2025 EX-5.5

CONSENT OF MATHIEU VEILLETTE CONSENT OF AUTHOR / EXPERT

Exhibit 5.5 CONSENT OF MATHIEU VEILLETTE CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Mathieu Veillette, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 (the “Séguéla Report”), evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report ent

September 2, 2025 EX-5.3

CONSENT OF PAUL WEEDON CONSENT OF AUTHOR / EXPERT

Exhibit 5.3 CONSENT OF PAUL WEEDON CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Paul Weedon, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 (the “Séguéla Report”) evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortun

September 2, 2025 EX-5.6

CONSENT OF PATRICIA GONZALEZ CONSENT OF AUTHOR / EXPERT

Exhibit 5.6 CONSENT OF PATRICIA GONZALEZ CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Patricia Gonzalez, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Caylloma Mine, Caylloma District, Peru” dated effective December 31, 2023 (the “Caylloma Report”) evaluating the Caylloma Mine of Fortuna Mining Corp. (the “Company”), and the informati

September 2, 2025 EX-5.9

CONSENT OF MATTHEW COBB CONSENT OF AUTHOR / EXPERT

Exhibit 5.9 CONSENT OF MATTHEW COBB CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Matthew Cobb, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc: Yaramoko Gold Mine, Burkina Faso” dated effective December 31, 2022 (the “Yaramoko Report”), evaluating the Yaramoko Mine, and the information contained in the Yaramoko Report described or incorpo

September 2, 2025 EX-5.8

CONSENT OF DMITRY TOLSTOV CONSENT OF AUTHOR / EXPERT

Exhibit 5.8 CONSENT OF DMITRY TOLSTOV CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Dmitry Tolstov, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mine and Arizaro Project, Salta Province, Argentina” dated effective December 31, 2022 (the “Lindero Report”), evaluating the Lindero property of Fortuna Mining Corp. (the “Company”),

September 2, 2025 EX-5.4

CONSENT OF RAUL ESPINOZA CONSENT OF AUTHOR / EXPERT

Exhibit 5.4 CONSENT OF RAUL ESPINOZA CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Raul Espinoza, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 (the “Séguéla Report”), evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “F

September 2, 2025 EX-5.7

CONSENT OF PAUL CRIDDLE CONSENT OF AUTHOR / EXPERT

Exhibit 5.7 CONSENT OF PAUL CRIDDLE CONSENT OF AUTHOR / EXPERT I hereby consent to: 1. the use of my name, Paul Criddle, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 (the “Séguéla Report”) evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fort

August 18, 2025 EX-99.1

Depth2 From

Exhibit 99.1 NEWS RELEASE Fortuna drills 4.5 g/t Au over 37.4 meters at Kingfisher and 11.2 g/t Au over 5.6 meters at Sunbird, Séguéla Mine, Côte d’Ivoire Vancouver, August 18, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report updated exploration drilling results from the Kingfisher and Sunbird deposits at the Séguéla Mine in Côte d’Ivoire. Paul Weedon, Senior Vice President o

August 18, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-3529

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (A

August 13, 2025 EX-99.1

Fortuna drills 22.7 g/t gold over 21.6 meters at Southern Arc, Diamba Sud Gold Project, Senegal

Exhibit 99.1 NEWS RELEASE Fortuna drills 22.7 g/t gold over 21.6 meters at Southern Arc, Diamba Sud Gold Project, Senegal Vancouver, August 13, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report additional exploration drilling results from the Southern Arc deposit at the Diamba Sud Gold Project located in Senegal, following the July 7, 2025 resource update (see Fortuna news rel

August 13, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-3529

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (A

August 7, 2025 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2025 As of August 6, 2025

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2025 As of August 6, 2025 This Management’s Discussion and Analysis (“MD&A”) of the financial position and results of operations for Fortuna Mining Corp.

August 7, 2025 EX-99.1

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and six months ended June 30, 2025 and 2024

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and six months ended June 30, 2025 and 2024 (UNAUDITED) Fortuna Mining Corp.

August 7, 2025 EX-99.5

Three months ended

NEWS RELEASE Fortuna Reports Results for the Second Quarter of 2025 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Vancouver, August 6, 2025: Fortuna Mining Corp.

August 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-3529

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (A

August 7, 2025 EX-99.3

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.3 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Jorge Ganoza Durant, Chief Executive Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended June 30, 2025. 2. No misrepre

August 7, 2025 EX-99.4

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.4 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Luis Ganoza Durant, Chief Financial Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended June 30, 2025. 2. No misrepres

August 5, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-3529

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (A

August 5, 2025 EX-99.1

Tonnes

Exhibit 99.1 NEWS RELEASE Fortuna Advances Diamba Sud Gold Project in Senegal with Updated Mineral Resources; PEA Completion Targeted for Q4 2025 Vancouver, August 5, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report an updated Mineral Resource estimate as of July 7, 2025, for the Diamba Sud Gold Project located in Senegal. All dollar amounts in this news release are expressed

July 24, 2025 EX-99.1

Fortuna to release second quarter 2025 financial results on August 6, 2025; Conference call at 12 p.m. Eastern time on August 7, 2025

Exhibit 99.1 NEWS RELEASE Fortuna to release second quarter 2025 financial results on August 6, 2025; Conference call at 12 p.m. Eastern time on August 7, 2025 Vancouver, July 24, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its financial statements and MD&A for the second quarter of 2025 on Wednesday, August 6, 2025, after the market closes. A conference call t

July 24, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Add

July 9, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Add

July 9, 2025 EX-99.1

2025 Annual Guidance7

Exhibit 99.1 NEWS RELEASE Fortuna delivers production of 71,229 gold equivalent ounces from ongoing operations for the second quarter of 2025 Vancouver, July 9, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports production results for the second quarter of 2025 from its three operating mines located in West Africa and Latin America. Q2 2025 highlights · Gold production from ongoing operatio

June 27, 2025 EX-99.1

Annual General Meeting of Shareholders of Fortuna Mining Corp. (the "Company") held on June 26, 2025 Report of Voting Results pursuant to Section 11.3 of National Instrument 51-102 – Continuous Disclosure Obligations

Exhibit 99.1 Annual General Meeting of Shareholders of Fortuna Mining Corp. (the "Company") held on June 26, 2025 Report of Voting Results pursuant to Section 11.3 of National Instrument 51-102 – Continuous Disclosure Obligations The following matters were voted upon at the annual general meeting (the "Meeting") of the holders ("Shareholders") of common shares of Fortuna Mining Corp. (the "Company

June 27, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Add

June 27, 2025 EX-99.2

Fortuna Reports Voting Results of its 2025 Annual General Meeting of Shareholders

Exhibit 99.2 Fortuna Reports Voting Results of its 2025 Annual General Meeting of Shareholders Vancouver, June 26, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces the voting results from its 2025 annual general meeting of shareholders held earlier today. A total of 188,888,907 common shares were represented at the meeting, accounting for 61.54% of Fortuna’s issued and outstanding share

June 12, 2025 EX-99.2

-2-

Exhibit 99.2 NEWS RELEASE Fortuna Completes Strategic Investment in Awalé Resources Limited and Files Early Warning Report Vancouver, June 11, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce that it has acquired 15,037,593 common shares (the “Shares”) of Awalé Resources Limited (“Awalé), a TSX Venture Exchange listed mineral exploration company which is currently advancing

June 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Add

June 12, 2025 EX-99.1

EARLY WARNING REPORT Form 62-103F1 Filed Pursuant to National Instrument 62-103

Exhibit 99.1 EARLY WARNING REPORT Form 62-103F1 Filed Pursuant to National Instrument 62-103 Item 1 – Security and Reporting Issuer 1.1 State the designation of securities to which this report relates and the name and address of the head office of the issuer of the securities. Common shares (each, a “Share”) of Awalé Resources Limited (the “Issuer”). The Issuer’s head office is located at 8681 Cla

May 27, 2025 EX-99.1

Depth From2,3 (m)

Exhibit 99.1 NEWS RELEASE Fortuna drills 8.6 g/t gold over 13.6 meters at Southern Arc prospect, Diamba Sud Project, Senegal Vancouver, May 27, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration programs at the Diamba Sud Gold Project in Senegal. Diamba Sud Gold Project exploration highlights Paul Weedon, Senior Vice President of Exploration, comme

May 27, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

May 21, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

May 21, 2025 EX-99.1

Forward-Looking Statements

Exhibit 99.1 NEWS RELEASE Fortuna publishes its 2024 Sustainability Report Vancouver, May 21, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce the publication of its seventh annual Sustainability Report, highlighting key developments in 2024 related to governance, corporate strategy, risk management, and performance. The report also outlines Fortuna’s commitments and progre

May 13, 2025 EX-99.2

NOTIFICATION OF NOTICE AND ACCESS TO SHAREHOLDERS NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

Exhibit 99.2 May 1, 2025 Fellow Shareholders: On behalf of the Board of Directors and management of Fortuna Mining Corp., I write in connection with the 2025 annual general meeting of shareholders. The meeting will be held at the office of Blake, Cassels & Graydon, 1133 Melville Street, Suite 3500, Vancouver, B.C., V6E 4E5 on Thursday, June 26, 2025 at 10:00 a.m. (Vancouver time). The accompanying

May 13, 2025 EX-99.1

2025 Original (000 oz)

Exhibit 99.1 NEWS RELEASE Fortuna Completes Divestiture of Yaramoko Mine and Provides Updated 2025 Production and Cost Guidance Vancouver, May 13, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) (“Fortuna” or the “Company”) is pleased to announce the successful completion of the sale of its interest in Roxgold Sanu SA (“Roxgold Sanu”), together with the Company’s three other wholly-owned Burkina

May 13, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

May 13, 2025 EX-99.4

FORTUNA MINING CORP. Under securities regulations, a reporting issuer must send annually a form to holders to request the Interim Financial Statements and MD&A and/or the Annual Financial Statements and MD&A. If you would like to receive the report(s

Exhibit 99.4 FORTUNA MINING CORP. Under securities regulations, a reporting issuer must send annually a form to holders to request the Interim Financial Statements and MD&A and/or the Annual Financial Statements and MD&A. If you would like to receive the report(s) by mail, please make your selection and return to the address as noted or register online at www.computershare.com/mailinglist. Alterna

May 13, 2025 EX-99.1

NOTIFICATION OF NOTICE AND ACCESS TO SHAREHOLDERS NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

Exhibit 99.1 NOTIFICATION OF NOTICE AND ACCESS TO SHAREHOLDERS AND NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS NOTICE IS HEREBY GIVEN that the Annual General Meeting (the “Meeting”) of the shareholders of Fortuna Mining Corp. (the “Company”) will be held at the office of Blake, Cassels & Graydon, 1133 Melville Street, Suite 3500, Vancouver, British Columbia V6E 4E5 on Thursday, June 26, 2025

May 13, 2025 EX-99.3

FORTUNA MINING CORP. Security Class Holder Account Number Form of Proxy - Annual General Meeting to be held on Thursday, June 26, 2025 This Form of Proxy is solicited by and on behalf of Management. Notes to proxy 1. Every holder has the right to app

Exhibit 99.3 FORTUNA MINING CORP. Security Class Holder Account Number Form of Proxy - Annual General Meeting to be held on Thursday, June 26, 2025 This Form of Proxy is solicited by and on behalf of Management. Notes to proxy 1. Every holder has the right to appoint some other person or company of their choice, who need not be a holder, to attend and act on their behalf at the meeting or any adjo

May 13, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

May 8, 2025 EX-99.1

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three months ended March 31, 2025 and 2024

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three months ended March 31, 2025 and 2024 (UNAUDITED) Fortuna Mining Corp.

May 8, 2025 EX-99.4

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.4 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Luis Ganoza Durant, Chief Financial Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended March 31, 2025. 2. No misrepre

May 8, 2025 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2025 As of May 7, 2025

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three months ended March 31, 2025 As of May 7, 2025 This Management’s Discussion and Analysis (“MD&A”) of the financial position and results of operations for Fortuna Mining Corp.

May 8, 2025 EX-99.5

Three months ended

NEWS RELEASE Fortuna Reports Results for the First Quarter of 2025 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Vancouver, May 7, 2025: Fortuna Mining Corp.

May 8, 2025 EX-99.3

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.3 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Jorge Ganoza Durant, Chief Executive Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended March 31, 2025. 2. No misrepr

May 8, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Addr

April 30, 2025 EX-99.1

Fortuna renews share repurchase program

NEWS RELEASE Fortuna renews share repurchase program Vancouver, April 30, 2025: Fortuna Mining Corp.

April 30, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 22, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 22, 2025 EX-99.1

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Exhibit 99.1 NEWS RELEASE Fortuna to release first quarter 2025 financial results on May 7, 2025; Conference call at 12 p.m. Eastern time on May 8, 2025 Vancouver, April 22, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its financial statements and MD&A for the first quarter on Wednesday, May 7, 2025, after the market closes. A conference call to discuss the fina

April 14, 2025 EX-99.1

Fortuna completes sale of non-core San Jose Mine, Mexico

Exhibit 99.1 NEWS RELEASE Fortuna completes sale of non-core San Jose Mine, Mexico Vancouver, April 14, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce the successful completion of the sale of its 100 percent interest in Compañia Minera Cuzcatlan S.A. de C.V. (“Cuzcatlan”) to JRC Ingeniería y Construcción S.A.C. (“JRC”), a private Peruvian company (the “Transaction”). Cuzc

April 14, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 11, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 11, 2025 EX-99.1

Fortuna announces sale of Yaramoko Mine, Burkina Faso

Exhibit 99.1 NEWS RELEASE Fortuna announces sale of Yaramoko Mine, Burkina Faso Vancouver, April 11, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) (“Fortuna” or the “Company”) is pleased to announce it has entered into a definitive share purchase agreement (the “Agreement”) to sell its interest in Roxgold Sanu SA (“Roxgold Sanu”) which owns and operates the Yaramoko Mine, together with the Com

April 10, 2025 EX-99.1

2025 Annual Guidance3,5

Exhibit 99.1 NEWS RELEASE Fortuna reports solid production of 103,459 gold equivalent ounces for the first quarter of 2025 Vancouver, April 10, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports production results for the first quarter of 2025 from its four operating mines in West Africa and Latin America. Q1 2025 highlights · Gold production of 91,893 ounces; compared to 89,678 oz Au in Q1

April 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

April 3, 2025 EX-99.1

April 3, 2025

Exhibit 99.1 April 3, 2025 TO: All Securities Commissions of Canada Toronto Stock Exchange Re: Notice of Meeting and Record Dates Under NI 54-101 In accordance with NI 54-101, we hereby give you notice of a meeting of the shareholders for the undermentioned issuer: Issuer: Fortuna Mining Corp. Meeting Date: Thursday, June 26, 2025 Record Date for Notice and Voting: Friday, May 2, 2025 Beneficial O

April 3, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 28, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 28, 2025 EX-99.1

Fortuna files Form 40-F, Annual Report

Exhibit 99.1 NEWS RELEASE Fortuna files Form 40-F, Annual Report Vancouver, March 27, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports that the Company has filed today its fiscal 2024 annual report on Form 40-F with the U.S. Securities and Exchange Commission (“SEC”). The Form 40-F, which includes the Company’s fiscal 2024 annual audited financial statements, management’s discussion and a

March 27, 2025 EX-99.12

CONSENT OF AUTHOR / EXPERT PAUL CRIDDLE

EXHIBIT 99.12 CONSENT OF AUTHOR / EXPERT PAUL CRIDDLE I hereby consent to the use of my name, Paul Criddle, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc: Yaramoko Gold

March 27, 2025 EX-99.6

CONSENT OF AUTHOR / EXPERT RAUL ESPINOZA

EXHIBIT 99.6 CONSENT OF AUTHOR / EXPERT RAUL ESPINOZA I hereby consent to: 1. the use of my name, Raul Espinoza, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc: Yaramoko

March 27, 2025 EX-99.5

CONSENT OF AUTHOR / EXPERT ERIC CHAPMAN

EXHIBIT 99.5 CONSENT OF AUTHOR / EXPERT ERIC CHAPMAN I hereby consent to: 1. the use of my name, Eric Chapman, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mi

March 27, 2025 EX-99.2

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2024 and 2023

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2024 and 2023 MANAGEMENT’S RESPONSIBILITY FOR THE FINANCIAL STATEMENTS Management of Fortuna Mining Corp.

March 27, 2025 EX-99.16

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.16 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Fortuna Mining Corp. (the “Company”) on Form 40-F for the fiscal year ended December 31, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Luis Ganoza Durant, Chief Financial Offic

March 27, 2025 EX-99.15

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.15 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Fortuna Mining Corp. (the “Company”) on Form 40-F for the fiscal year ended December 31, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jorge Ganoza Durant, President, Chief Exe

March 27, 2025 EX-99.1

ANNUAL INFORMATION FORM For the Fiscal Year Ended December 31, 2024 DATED: March 20, 2025

ANNUAL INFORMATION FORM For the Fiscal Year Ended December 31, 2024 DATED: March 20, 2025 CORPORATE OFFICE: MANAGEMENT HEAD OFFICE: 1111 Melville Street, Suite 820 Piso 5, Av.

March 27, 2025 EX-99.4

Consent of Independent Registered Public Accounting Firm

EXHIBIT 99.4 Consent of Independent Registered Public Accounting Firm The Board of Directors Fortuna Mining Corp. We consent to the use of: ● our report dated March 5, 2025 on the consolidated financial statements of Fortuna Mining Corp. (the “Entity”) which comprise the consolidated statements of financial position as of December 31, 2024 and 2023, the related consolidated statements of income (l

March 27, 2025 EX-99.8

CONSENT OF AUTHOR / EXPERT MATHIEU VEILLETTE

EXHIBIT 99.8 CONSENT OF AUTHOR / EXPERT MATHIEU VEILLETTE I hereby consent to the use of my name, Mathieu Veillette, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Lind

March 27, 2025 EX-99.14

CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.14 CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Luis Ganoza Durant, certify that: 1. I have reviewed this annual report on Form 40-F of Fortuna Mining Corp. (the “issuer”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omi

March 27, 2025 EX-99.3

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2024 As of March 5, 2025

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2024 As of March 5, 2025 This Management’s Discussion and Analysis (“MD&A”) of the financial position and results of operations for Fortuna Mining Corp.

March 27, 2025 EX-99.11

CONSENT OF AUTHOR / EXPERT MATTHEW COBB

EXHIBIT 99.11 CONSENT OF AUTHOR / EXPERT MATTHEW COBB I hereby consent to the use of my name, Matthew Cobb, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc: Yaramoko Gold Mine, Burkina Faso” dated effective December 31, 2022 evaluating the Yaramoko Mine of Fortuna Mining Corp. (the “Company”), and the information contained in said technical report described or inc

March 27, 2025 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 40-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☑ ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 Commission File Number: 001-35297 FORTUNA MINING CORP. (Exact name of Registrant as specified

March 27, 2025 EX-99.10

CONSENT OF AUTHOR / EXPERT DMITRY TOLSTOV

EXHIBIT 99.10 CONSENT OF AUTHOR / EXPERT DMITRY TOLSTOV I hereby consent to the use of my name, Dmitry Tolstov, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Lindero Mine and Arizaro Project, Salta Province, Argentina” dated effective December 31, 2022 evaluating the Lindero property of Fortuna Mining Corp. (the “Company”), and the information contained in sai

March 27, 2025 EX-99.9

CONSENT OF AUTHOR / EXPERT PATRICIA GONZALEZ

EXHIBIT 99.9 CONSENT OF AUTHOR / EXPERT PATRICIA GONZALEZ I hereby consent to the use of my name, Patricia Gonzalez, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Caylloma Mine, Caylloma District, Peru” dated effective December 31, 2023 evaluating the Caylloma Mine of Fortuna Mining Corp. (the “Company”), and the information contained in said technical report

March 27, 2025 EX-99.7

CONSENT OF AUTHOR / EXPERT PAUL WEEDOON

EXHIBIT 99.7 CONSENT OF AUTHOR / EXPERT PAUL WEEDOON I hereby consent to the use of my name, Paul Weedon, and reference to my name, the technical report entitled “Fortuna Silver Mines Inc.: Séguéla Gold Mine, Côte d’Ivoire” dated effective December 31, 2023 evaluating the Séguéla Mine of Fortuna Mining Corp. (the “Company”), the technical report entitled “Fortuna Silver Mines Inc.: Caylloma Mine,

March 27, 2025 EX-99.13

CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99.13 CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jorge Ganoza Durant, certify that: 1. I have reviewed this annual report on Form 40-F of Fortuna Mining Corp. (the “issuer”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or om

March 26, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 26, 2025 EX-99.1

Fortuna to present at Mining Forum Europe 2025 in Zürich, Switzerland

Exhibit 99.1 NEWS RELEASE Fortuna to present at Mining Forum Europe 2025 in Zürich, Switzerland Vancouver, March 26, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce that it will be attending Mining Forum Europe, which is being held at the Park Hyatt in Zürich, Switzerland, from March 31 to April 2, 2025. Jorge A. Ganoza, President, Chief Executive Officer, and co-founder o

March 13, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 13, 2025 EX-99.1

Fortuna intersects 7.2 g/t Au over 31.5 meters at Kingfisher,

Exhibit 99.1 NEWS RELEASE Fortuna intersects 7.2 g/t Au over 31.5 meters at Kingfisher, Séguéla Mine, Côte d’Ivoire Vancouver, March 13, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration programs at the Séguéla Mine in Côte d’Ivoire. Paul Weedon, Senior Vice President of Exploration at Fortuna, commented, “Exploration drilling at Kingfisher has mo

March 12, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (Ad

March 12, 2025 EX-99.1

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Exhibit 99.1 NEWS RELEASE Fortuna reports updated Mineral Reserves and Mineral Resources Vancouver, March 12, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) provides its updated Mineral Reserve and Mineral Resource estimates as of December 31, 2024 for its four operating mines in West Africa and the Americas, as well as the Arizaro Project located at the Lindero Mine in Salta, Argentina, the Di

March 6, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, BC, Canada V6E 3V6 (Address of princ

March 6, 2025 EX-99.3

Three months ended,

NEWS RELEASE Fortuna Reports Results for the Fourth Quarter and Full Year 2024 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Vancouver, March 5, 2025: Fortuna Mining Corp.

March 6, 2025 EX-99.1

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2024 and 2023

CONSOLIDATED FINANCIAL STATEMENTS For the years ended December 31, 2024 and 2023 MANAGEMENT’S RESPONSIBILITY FOR THE FINANCIAL STATEMENTS Management of Fortuna Mining Corp.

March 6, 2025 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2024 As of March 5, 2025

MANAGEMENT’S DISCUSSION AND ANALYSIS For the year ended December 31, 2024 As of March 5, 2025 This Management’s Discussion and Analysis (“MD&A”) of the financial position and results of operations for Fortuna Mining Corp.

February 25, 2025 EX-99.1

Fortuna reports a fatal accident at its Séguéla Mine, Côte d’Ivoire

Exhibit 99.1 NEWS RELEASE Fortuna reports a fatal accident at its Séguéla Mine, Côte d’Ivoire Vancouver, February 25, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) regrets to report that a fatal accident occurred yesterday at the Séguéla Mine. The tragic incident took place while an employee of Mapa Protection Incendie (MPI), a specialized service provider to the mine contractor Mota Engil, wa

February 25, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2025 Commission File Number 001-35

6-K 1 tm257568d16k.htm 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, Britis

February 18, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2025 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

February 18, 2025 EX-99.1

Fortuna to release fourth quarter and full year 2024 financial results on March 5, 2025; Conference call at 12 p.m. Eastern time on March 6, 2025

Exhibit 99.1 NEWS RELEASE Fortuna to release fourth quarter and full year 2024 financial results on March 5, 2025; Conference call at 12 p.m. Eastern time on March 6, 2025 Vancouver, February 18, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its financial statements and MD&A for the fourth quarter and full year 2024 on Wednesday, March 5, 2025, after the market c

January 21, 2025 EX-99.1

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Exhibit 99.1 NEWS RELEASE Fortuna reports record production of 455,958 Au Eq ounces for 2024 and provides 2025 outlook. Vancouver, January 21, 2025 – Fortuna Mining Corp. (NYSE: FSM) (TSX: FVI) reports production results for the fourth quarter and full year 2024 from its five operating mines in Latin America and West Africa. For the full year 2024, Fortuna produced a record 369,637 ounces of gold

January 21, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6 (

January 15, 2025 EX-99.1

Fortuna announces sale of non-core San Jose Mine, Mexico

Exhibit 99.1 NEWS RELEASE Fortuna announces sale of non-core San Jose Mine, Mexico Vancouver, January 15, 2025: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce it has entered into a binding letter agreement (the “Letter Agreement”) to sell (the “Transaction”) its 100 percent interest in Compañia Minera Cuzcatlan S.A. de C.V. (“Cuzcatlan”) to Minas del Balsas S.A. de C.V. (“MDB”)

January 15, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Ad

December 16, 2024 EX-99.1

Fortuna extends Kingfisher deposit with drill intersect of 4.1 g/t Au over 15.3 meters at the Séguéla Mine, Côte d’Ivoire

Exhibit 99.1 NEWS RELEASE Fortuna extends Kingfisher deposit with drill intersect of 4.1 g/t Au over 15.3 meters at the Séguéla Mine, Côte d’Ivoire Vancouver, December 16, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration program at the Séguéla Mine in Côte d’Ivoire. Paul Weedon, Senior Vice President, Exploration, commented, “The prospectivity of

December 16, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (A

December 10, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (A

December 10, 2024 EX-99.1

Cautionary Note to United States Investors Concerning Estimates of Reserves and Resources

Exhibit 99.1 NEWS RELEASE Fortuna updates Mineral Reserves and Mineral Resources for the Séguéla Mine, Côte d'Ivoire Vancouver, December 10, 2024 - Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce updated Mineral Reserves and Mineral Resources at its Séguéla Mine with the discovery of over 500,000 gold ounces of new Inferred Resources. Jorge A. Ganoza, President and CEO, commente

December 3, 2024 EX-99.1

Fortuna reports progress on its share buyback program

Exhibit 99.1 NEWS RELEASE Fortuna reports progress on its share buyback program Vancouver, December 3, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to report that during the fourth quarter as of Friday, November 29, 2024, it has repurchased under the Company’s normal course issuer bid (NCIB) an aggregate of 6,402,640 common shares on the open market of the New York Stock Exchange.

December 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (A

November 7, 2024 EX-99.1

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and nine months ended September 30, 2024 and 2023

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and nine months ended September 30, 2024 and 2023 (UNAUDITED) Fortuna Mining Corp.

November 7, 2024 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2024 As of November 6, 2024

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and nine months ended September 30, 2024 As of November 6, 2024 Fortuna Mining Corp.

November 7, 2024 EX-99.5

Three months ended September 30,

NEWS RELEASE Fortuna reports record earnings for the third quarter of 2024 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Vancouver, November 6, 2024: Fortuna Mining Corp.

November 7, 2024 EX-99.3

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.3 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Jorge Ganoza Durant, Chief Executive Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended September 30, 2024. 2. No mis

November 7, 2024 EX-99.4

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.4 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Luis Ganoza Durant, Chief Financial Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended September 30, 2024. 2. No misr

November 7, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number 001-35

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (A

October 22, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Ad

October 22, 2024 EX-99.1

Fortuna to release third quarter 2024 financial results on

Exhibit 99.1 NEWS RELEASE Fortuna to release third quarter 2024 financial results on November 6, 2024; Conference call at 12 pm EST on November 7, 2024 Vancouver, October 22, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its unaudited financial statements and MD&A for the third quarter on Wednesday, November 6, 2024, after the market closes. A conference call to

October 10, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Ad

October 10, 2024 EX-99.1

Guidance 2024 (Moz)

Exhibit 99.1 NEWS RELEASE Fortuna reports solid production of 110,820 gold equivalent ounces for the third quarter of 2024 Vancouver, October 10, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports production results for the third quarter of 2024 from its five operating mines in West Africa and Latin America. Q3 2024 Production highlights · Gold equivalent production of 110,820 ounces1; comp

October 7, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number 001-352

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Ad

October 7, 2024 EX-99.1

Fortuna responds to recent media reports concerning Burkina Faso

Exhibit 99.1 NEWS RELEASE Fortuna responds to recent media reports concerning Burkina Faso Vancouver, October 7, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) today shared an update on its operations at the Yaramoko Mine in Burkina Faso. On October 5, 2024, Burkina Faso’s President Ibrahim Traoré made public comments regarding mining companies operating in the country and the possible withdraw

September 12, 2024 EX-99.1

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EX-99.1 2 tm2423935d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 NEWS RELEASE Fortuna intersects 6.9 g/t Au over 33.3 meters at the Diamba Sud Project, Senegal Vancouver, September 12, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration programs at the Diamba Sud Gold Project in Senegal. Diamba Sud Gold Project exploration highlights Paul Weedon, Senior Vi

September 12, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (

September 10, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (

September 10, 2024 EX-99.1

Depth From (m)

Exhibit 99.1 NEWS RELEASE Fortuna intersects 14.2 g/t Au over 16.8 meters at the Kingfisher prospect, Séguéla Mine, Côte d’Ivoire Vancouver, September 10, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration programs at the Séguéla Mine in Côte d’Ivoire. Séguéla Mine exploration highlights Paul Weedon, Senior Vice President of Exploration at Fortuna,

September 6, 2024 EX-99.1

Extractive Sector Transparency Measures Act – Annual Report for the year ended December 31, 2023

EXHIBIT 99.1 Extractive Sector Transparency Measures Act – Annual Report for the year ended December 31, 2023 Extractive Sector Transparency Measures Act - Annual Report Reporting Entity Name Fortuna Silver Mines Inc. Reporting Year From 1/1/2023 To: 12/31/2023 Date submitted 5/20/2022 Reporting Entity ESTMA Identification Number E929085 Other Subsidiaries Included (optional field) Not Consolidate

September 6, 2024 EX-2.01.INS

EX-2.01.INS

0001341335 country:AR fsm:YpfS.a.Member 2023-01-01 2023-12-31 0001341335 country:AR fsm:NationalGovernmentOfArgentinaTaxAuthorityAfipThreeMember 2023-01-01 2023-12-31 0001341335 country:AR fsm:NationalGovernmentOfArgentinaTaxAuthorityAfipOneMember 2023-01-01 2023-12-31 0001341335 country:PE fsm:FederalGovemementOfPeruOrganismoSupervisorDeLaInversinDeEnergaYMineraOsinergminMember 2023-01-01 2023-12

September 6, 2024 EX-2.01.SCH

EX-2.01.SCH

The member stands for Lindero Mine. Lindero Mine [Member] Lindero Mine The member stands for San Jose Mine. San Jose Mine [Member] San Jose Mine The member stands for Bateas Mine. Bateas Mine [Member] Bateas Mine The member stands for Seguela Mine. Seguela Mine [Member] Seguela Mine The member stands for Chesser. Chesser [Member] Chesser The member stands for Yaramoko Mine. Yaramoko Mine [Member]

September 6, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report FORTUNA MINING CORP. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report FORTUNA MINING CORP. (Exact name of the registrant as specified in its charter) British Columbia, Canada 001-35297 N/A (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 200 Burrard Street, Suite 650, Vancouver, Brit

August 8, 2024 EX-99.5

Three months ended June 30,

NEWS RELEASE Exhibit 99.5 Fortuna reports financial results for the second quarter of 2024 (All amounts are expressed in US dollars, tabular amounts in millions, unless otherwise stated) Vancouver, August 7, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) (“Fortuna” or the “Company”) today reported its financial and operating results for the second quarter of 2024. Second Quarter 2024 highlights

August 8, 2024 EX-99.4

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.4 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Luis Ganoza Durant, Chief Financial Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended June 30, 2024. 2. No misrepres

August 8, 2024 EX-99.3

FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate

Exhibit 99.3 FORTUNA MINING CORP. Form 52-109F2 Certification of Interim Filings – Full Certificate I, Jorge Ganoza Durant, Chief Executive Officer of Fortuna Mining Corp., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the “Interim Filings”) of Fortuna Mining Corp. (the “Issuer”) for the interim period ended June 30, 2024. 2. No misrepre

August 8, 2024 EX-99.1

CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and six months ended June 30, 2024 and 2023

Exhibit 99.1 CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS For the three and six months ended June 30, 2024 and 2023 (UNAUDITED) Fortuna Mining Corp. Condensed Interim Consolidated Statements of Income (Unaudited - Tabular amounts presented in thousands of US dollars, except share and per share amounts) Three months ended June 30, Six months ended June 30, Note 2024 2023 2024 2023 Sales 18 $

August 8, 2024 EX-99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2024 As of August 7, 2024

Exhibit 99.2 MANAGEMENT’S DISCUSSION AND ANALYSIS For the three and six months ended June 30, 2024 As of August 7, 2024 Fortuna Mining Corp. Management’s Discussion and Analysis For the three and six months ended June 30, 2024 This Management’s Discussion and Analysis (“MD&A”) of the financial position and results of operations for Fortuna Mining Corp. (the “Company” or “Fortuna”) (formerly Fortun

August 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number 001-3529

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Add

July 23, 2024 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna to release second quarter 2024 financial results on August 7, 2024; Conference call at 12 pm EST on August 8, 2024 Vancouver, July 23, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces that it will release its unaudited financial statements and MD&A for the second quarter on Wednesday, August 7, 2024, after the market closes. A conference call to discuss

July 23, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Addre

July 9, 2024 EX-99.1

-2-

Exhibit 99.1 NEWS RELEASE Fortuna reports solid production of 116,570 gold equivalent ounces for the second quarter of 2024 Vancouver, July 9, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) reports production results for the second quarter of 2024 from its five operating mines in West Africa and Latin America. Q2 2024 Production highlights · Gold equivalent production of 116,570 ounces1; a 25 p

July 9, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Addre

July 3, 2024 F-X/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-X/A APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING EXPLANATORY NOTE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-X/A APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING EXPLANATORY NOTE The Registrant is filing this Amendment to Form F-X to report a change in the U.S. Agent for Service of Process previously appointed by the Registrant in connection with the Registration Statement on Form 40-F (the "Form 40-F") filed by the

June 25, 2024 EX-99.1

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Exhibit 99.1 NEWS RELEASE Fortuna intersects 31.3 g/t gold over 12.0 meters from the Karakara Prospect at the Diamba Sud Gold Project Vancouver, June 25, 2024: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to provide an update on its exploration programs at the Diamba Sud Gold Project in Senegal. Paul Weedon, Senior Vice President of Exploration at Fortuna, commented, “Drilling at Karakar

June 25, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-35297 Fortuna Mining Corp. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (Addre

June 21, 2024 EX-99.3

Number: BC0392943 CERTIFICATE OF CHANGE OF NAME BUSINESS CORPORATIONS ACT I Hereby Certify that FORTUNA SILVER MINES INC. changed its name to FORTUNA MINING CORP. on June 20, 2024 at 11:46 AM Pacific Time. Issued under my hand at Victoria, British Co

Exhibit 99.3 Number: BC0392943 CERTIFICATE OF CHANGE OF NAME BUSINESS CORPORATIONS ACT I Hereby Certify that FORTUNA SILVER MINES INC. changed its name to FORTUNA MINING CORP. on June 20, 2024 at 11:46 AM Pacific Time. Issued under my hand at Victoria, British Columbia On June 20, 2024 T.K. SPARKS Registrar of Companies Province of British Columbia Canada ELECTRONIC CERTIFICATE

June 21, 2024 EX-99.2

Fortuna reports results of Annual and Special Meeting

Exhibit 99.2 NEWS RELEASE Fortuna reports results of Annual and Special Meeting Vancouver, June 20, 2024- Fortuna Silver Mines Inc. (NYSE: FSM | TSX: FVI) hereby announces the voting results at the Company’s annual and special meeting of shareholders held on June 20, 2024 (the “Meeting”). A total of 153,562,018 common shares were represented at the Meeting, being 50.16% of the Company’s issued and

June 21, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-35297

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-35297 Fortuna Silver Mines Inc. (Translation of registrant’s name into English) 200 Burrard Street, Suite 650, Vancouver, British Columbia, Canada V6C 3L6 (

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