Slide 1: Investor Presentation
AUGUST 18, 2025 Investor Presentation NYSE: FSM | TSX: FVI
Slide 2: Cautionary Statement on Forward Looking Statements
Cautionary Statement on Forward Looking Statements This corporate presentation contains forward looking statements which constitute “forward-looking information” within the meaning of are subject to disruption, damage, failure and risks with implementation and integration; risks associated with clim
Slide 3: Financial Information: Non-IFRS Financial Measures
Financial Information NON-IFRS FINANCIAL MEASURES Fortuna’s condensed interim consolidated financial statements of the Company for the three and six months ended June 30, 2025 and These non-IFRS financial measures are widely reported in the mining industry as benchmarks for performance and are used
Slide 4: Financial Information: Non-IFRS Financial Measures
Financial Information NON-IFRS FINANCIAL MEASURES Adjusted EBITDA Adjusted Attributable Net Income The following table presents a reconciliation of Adjusted EBITDA from net income, the most directly comparable IFRS The following table presents a reconciliation of Adjusted Attributable Net Income fro
Slide 5: Why Invest in Fortuna?
Why Invest in Fortuna? Strategically positioned to Prudent Fortress capture high value capital allocation balance sheet growth opportunities strategy Diamba Sud Proven build decision expected in mine developers and H1 2026 following completion operators within our of PEA in late 2025 regions Signifi
Slide 6: Growth in Gold Equivalent Production
Growth in Gold Equivalent Production 500 456 440 Decrease in GEO 450 result of the Yaramoko Mine divestiture4 400 378 Base Metals Ag Au 333 309 - 339 350 300 (GEO 000) 250 191 194 190 195 200 169 134 146 150 86 96 100 44 46 56 50 22 27 0 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 20
Slide 7: Growing in Premier Mining Jurisdictions
Growing in Premier Mining Jurisdictions Regional focus provides a strong competitive advantage 2025E PRODUCTION Gold Equivalent 309 to 339 koz1,2 or Gold 265 to 290 koz + Silver 0.9 to 1.0 Moz 2025E AISC $1,670 – 1,7653 1. Refer to Fortuna news release dated May 13, 2025, “Fortuna Completes Divestit
Slide 8: Q2 2025 Consolidated Production from Continuing Operations
Q2 2025 Consolidated Production from Continuing Operations Solid gold equivalent production of 71,229 ounces1,2 Q2 GOLD1 SILVER1 LEAD1 ZINC1 2025 (koz) (Moz) (Mlbs) (Mlbs) 61.7 13.8 58.8 12.9 0.2 0.2 8.9 8.8 Gold Production 61,736 oz1 Q2 2025 Q1 2025 Q2 2025 Q1 2025 Q2 2025 Q1 2025 Q2 2025 Q1 2025 1
Slide 9: Q2 2025 Consolidated Financial Highlights
Q2 2025 Consolidated Financial Highlights3 Q2 2025 SALES1 ADJUSTED FREE CASH FLOW ADJUSTED ATTRIBUTABLE ($ M) EBITDA1,2 FROM OPERATIONS1,2 NET INCOME1,2 ($ M) ($ M) ($ M) 230.4 127.7 66.7 44.7 195.0 57.4 35.7 Sales 98.2 $230.4 M1 18% higher than Q1 20251 Q2 2025 Q1 2025 Q2 2025 Q1 2025 Q2 2025 Q1 20
Slide 10: Asset Portfolio
Asset Portfolio 2025 exploration budget: $41.0 M | $21.6 M for Brownfields and $19.3 M for Greenfields EXPLORATION PRODUCTION Diamba Sud Senegal 2025 Exploration Budget: $8.3 M Kingfisher Séguéla Mine, Côte d’Ivoire Sunbird Séguéla Mine, Côte d’Ivoire Tongon North Séguéla Mine Yaramoko Mine Lindero
Slide 11: Séguéla Mine, Côte d'Ivoire
Séguéla Mine, Côte d’Ivoire Optimizing Séguéla’s potential through 2026 and beyond Gold Production and AISC Q2 20254 Q1 20255 Gold Production (oz) 38,186 38,500 AISC ($/oz Au) 1,634 1,290 • Mill throughput averaged 210 t/hr in Q2 2025; 36 percent above original design capacity4 • Brownfields explora
Slide 12: Séguéla Mine: Regional exploration
Séguéla Mine, Côte d’Ivoire Regional exploration: Continuing success1 • Highly prospective with a relatively immature exploration profile and a history of new discoveries – Kingfisher the most recent • Strong exploration pipeline with >30 highly prospective targets untested with continuous target ge
Slide 13: Séguéla Mine: Kingfisher deposit
Séguéla Mine, Côte d’Ivoire Kingfisher is newest emerging mineral deposit on the property • 1-kilometer east of Sunbird, “blind deposit” identified through subtle soil anomaly • Hosted along the contact of moderately sheared basalts and dolerites, and in the same package as the Boulder and Agouti de
Slide 14: Séguéla Mine: Sunbird Deposit
Séguéla Mine, Côte d’Ivoire Sunbird Deposit: Drilling continues to expand underground mining potential1 Sunbird long section - looking west • High grade (>20 grams x meter) core extending at least 0.8 kilometer beyond Underground Indicated Resource boundary • Remains open beyond 700 meters below sur
Slide 15: Lindero Mine, Argentina
Lindero Mine, Argentina Leach pad expansion completed in Q1 2025 Gold Production and AISC Q2 20254 Q1 20255 Gold Production (oz) 23,550 20,320 AISC ($/oz Au) 1,783 1,911 • 14.5 MWh photovoltaic plant successfully completed and commissioned on schedule in Q2 2025, contributing to both cost efficiency
Slide 16: Lindero Mine: Arizaro potential
Lindero Mine, Argentina Arizaro has the potential to contribute to Lindero’s future production1 Lindero Arizaro 2.8 km Arizaro 2024/25 Soil geochemistry program highlights Au-Cu porphyry potential mineralization (red) 1. For full details of drill holes ARD-42 to ARD-47 refer to Fortuna news release
Slide 17: Caylloma Mine, Peru
Caylloma Mine, Peru Continued strong operational performance Metals Production and AISC4 Q2 20254 Q1 20255 Silver Production (oz) 240,621 242,993 Lead Production (Mlbs) 8.9 8.8 Zinc Production (Mlbs) 12.9 13.8 AISC ($/oz Ag Eq) 21.73 18.74 • Brownfields exploration budget of $4.8 million: - $2.2 mil
Slide 18: Caylloma Mine: Continued exploration success
Caylloma Mine, Peru Continued exploration success; open at depth Previous drill highlights include1: ANIM086321: 60 g/t Ag, 5.51% Pb and 6.22% Zn over an estimated true width of 7.2 meters ANIM084321: 51 g/t Ag, 2.94% Pb and 5.23% Zn over an estimated true width of 5.8 meters ANIM084721: 106 g/t Ag,
Slide 19: Caylloma Mine: Long history, bright future
Caylloma Mine, Peru Long history, bright future Animas vein NE and oreshoots 1, 3, and 4 1 Expansion of existing resources and current mining 6 2 San Cristóbal vein Extension of historic, Ag-dominant resources in epithermal veins 7 3 Pisacca Project Maiden drilling of high-level, high sulfidation Au
Slide 20: Diamba Sud Gold Project: Prospective geology
Diamba Sud Gold Project, Senegal Prospective geology • 69,100 hectares of tenements over the highly prospective Kedougou-Kinieba Inlier (KKI), a world class mining district • Diamba Sud associated with fertile splays off the Senegal-Mali Shear Zone (SMSZ) • Structurally complex, highlighting regiona
Slide 21: Diamba Sud Gold Project: Exploration program
Diamba Sud Gold Project, Senegal Brownfields exploration program of $8.3 million: 35,000 meters of drilling1 • 69,100 hectares of tenements over the highly prospective Kedougou-Kinieba Inlier (KKI) • Diamba Sud is associated with fertile splays off the Senegal-Mali Shear Zone (SMSZ) Allied Gold Corp
Slide 22: Diamba Sud: Drilling focused on expanding resource base
Diamba Sud Gold Project, Senegal Drilling focused on expanding mineral resource base1 Maintain aggressive exploration pipeline via phased approach: Phase 1: Conduct selected confirmatory drilling to improve resource confidence at Area A, Area D and Karakara, plus drill to test for extensions to the
Slide 23: 2024 ESG Ratings
2024 ESG RATINGS Continuously achieving top tier performance Fortuna Mining - Investor Presentation 23
Slide 24: Sustainability Performance
Sustainability Performance Prioritized corporate sustainability KPIs Q2 2025 2025 Targets Total Recordable Injury Frequency Rate (TRIFR) 1 0.87 1.47 Significant disputes with local communities 0 0 Significant strikes and lockouts 0 0 Significant incidents associated with waste and hazardous material
Slide 25: Pay-For-Performance
Pay-For-Performance CEO’s pay-for-performance1 compensation structure aligned with the long-term interests of shareholders Short-term cash incentives (STI) are aligned to the 78% of CEO’s compensation is at-risk pay achievement of annual, pre-defined corporate financial, operational, growth and ESG
Slide 26: Capital Structure and Ownership
Capital Structure and Ownership Outstanding shares (OS)1 307.0M NYSE: FSM1 TSX: FVI1 52-week range (Hi - Lo) $7.55 – 4.10 52-week range (Hi - Lo) C$10.30 - 5.62 3-month average volume per day 15.1 M shares 3-month average volume per day 1.1 M shares Share Ownership2 Institutional Ownership2 (%) (%)
Slide 27: 2025 Annual Guidance
2025 Annual Guidance 309 to 339 GEO; at an estimated AISC of between $1,670 and $1,765/GEO1,3 Consolidated Production Gold3 Silver Lead Zinc 265 - 290 koz 0.9 - 1.0 Moz 29 - 32 Mlbs 45 - 49 Mlbs AISC1,2 Séguéla Mine Lindero Mine Caylloma Mine CÔTE D’IVOIRE ARGENTINA PERU $1,500 - 1,600 $1,600 - 1,72
Slide 28: Contact
CONTACT CARLOS BACA Vice President, Investor Relations info@fmcmail.com | fortunamining.com NYSE: FSM | TSX: FVI | FSE: F4S0 @fortunamining @fortunamining @fortunamining 28
Slide 29: Appendices
Fortuna Mining Appendices
Slide 30: Financial Performance
APPENDIX Financial Performance7 Where applicable, the Company has presented operating and financial results based on its continuing operations. Contributions from the San Jose and Yaramoko mines have been removed from Q2 2025 quarterly and Q2 2024 figures as they were disposed of during the second q
Slide 31: 2025 Consolidated Cash Cost and AISC Guidance
APPENDIX 2025 Consolidated Cash Cost and AISC Guidance Cash Cost Guidance ($/GEO) AISC Guidance ($/GEO) 2025 Guidance 2025 Guidance Lindero 1,060 - 1,235 Lindero 1,600 - 1,720 Caylloma 1,250 - 1,385 Caylloma 1,810 - 2,060 Yaramoko 1,060 Yaramoko - 1,410 - Séguéla 680 - 750 Séguéla 1,500 - 1,600 Cons
Slide 32: The West Africa Opportunity
APPENDIX Mauritania The West Africa Loulo-Gounkoto | Mali Opportunity Senegal FY24 production: 578 koz Au1 A mining-friendly, favorable Mali Niger Gambia jurisdiction to do business Diamba Sud Significant geological potential Guinea- Gold Project Burkina Faso Host to numerous “Tier 1” Gold Mines wit
Slide 33: The West Africa Opportunity: Discovery to production timelines
APPENDIX Mauritania The West Africa Opportunity Senegal West Africa is among the quickest Mali Gambia Niger timelines from discovery to production • Global average is approximately 15.7 years1 Burkina Faso • Côte d’Ivoire returned the lowest average lead Guinea- Bissau time of mines from discovery t
Slide 34: Board of Directors
APPENDIX Board of Directors DAVID LAING MARIO SZOTLENDER Board Chair | Independent Director Mining engineer with 40 years of experience in the industry. David is an independent mining Director consultant. He was formerly the COO of both Equinox Gold and True Gold Mining. He was also Co-founder of Fo
Slide 35: Executive Leadership Team
APPENDIX Executive Leadership Team DAVID WHITTLE JORGE A. GANOZA Chief Operating Officer – West Africa President, CEO and Director David joined Fortuna in July 2021 and held the position of Vice President Co-founder of Fortuna. Peruvian geological engineer with over 25 years of experience in mineral
Slide 36: Séguéla Mine: Mineral Reserves and Mineral Resources
APPENDIX Séguéla Mine, Côte d’Ivoire Mineral Reserves and Mineral Resources Contained Metal Tonnes Au Au Classification (000) (g/t) (koz) Proven & Probable Reserves 9,751 3.38 1,061 Measured & Indicated Resources 3,438 3.59 396 Inferred Resources 6,765 2.84 618 Mineral Reserve and Mineral Resource e
Slide 37: Lindero Mine: Mineral Reserves and Mineral Resources
APPENDIX Lindero Mine, Argentina Mineral Reserves and Mineral Resources Contained Metal Tonnes Au Cu Au Deposit Classification (000) (g/t) (%) (koz) Lindero Proven & Probable Reserves 69,174 0.54 0.09 1,206 Measured & Indicated Resources 30,724 0.43 0.10 421 Inferred Resources 30,364 0.46 0.11 449 A
Slide 38: Caylloma Mine: Mineral Reserves and Mineral Resources
APPENDIX Caylloma Mine, Peru Mineral Reserves and Mineral Resources Contained Metal Tonnes Ag Au Pb Zn GEOs Classification (000) (g/t) (g/t) (%) (%) (000) Proven & Probable Reserves 2,441 82 0.15 2.73 4.15 307 Measured & Indicated Resources 1,000 86 0.21 1.31 2.38 89 Inferred Resources 3,794 106 0.5
Slide 39: Diamba Sud Gold Project: Mineral Resources
APPENDIX Diamba Sud Gold Project, Senegal Mineral Resources Contained Metal Tonnes Au Au Classification (000) (g/t) (koz) Indicated Resources 14,153 1.59 724 Inferred Resources 6,171 1.44 285 Mineral Reserve and Mineral Resource estimates prepared in accordance with NI 43-101: 1. Mineral Resources a
Slide 40: Appendix: Mineral Reserves – Proven and Probable
APPENDIX Mineral Reserves – Proven and Probable 1. Mineral Reserves and Mineral Resources are as defined by the 2014 CIM Definition Standards for Mineral Resources and Mineral Reserves 2. Mineral Resources are exclusive of Mineral Reserves 3. Mineral Resources that are not Mineral Reserves do not ha