Slide 1: Building a Major Gold Producer in South America
Building a Major Gold Producer in South America On the road to 1 million ounces a year Corporate Presentation October 2026 TSX & NYSE: ARIS TSX & NYSE: ARIS
Slide 2: Disclaimer
Disclaimer This presentation contains “forward-looking information” or “forward-looking statements” within the meaning of The forward-looking statements and forward-looking information are made as of the date hereof and Aris Mining Canadian securities legislation. All statements included herein, oth
Slide 3: Overview
OVERVIEW Scale & Growth | Financial Strength | Leadership TSX & NYSE: ARIS
Slide 4: Aris Mining at a Glance
Aris Mining at a Glance Four high-quality gold assets: targeting gold production of 1 Moz/year1 from operating mines and projects. 2 SCALE & GROWTH PRODUCING DEVELOPMENT 2 Operating mines, with expansions underway Development projects 257koz 300 - 350koz MINES PROJECTS Corporate offices 2025 GOLD PR
Slide 5: On the Road to One Million Ounces
On the Road to One Million Ounces Organic growth focused strategy to create a major gold producer in South America. 1 LONG-LIFE ASSETS Targeting 1Moz/year from four assets1 2 3 FINANCIAL EXPERIENCED STRENGTH LEADERSHIP Clean capital structure. Track record of Strong liquidity and success building go
Slide 6: Long-Life Assets
1 Long-Life Assets NEAR-TERM GROWTH FROM PRODUCING ASSETS LONGER-TERM GROWTH FROM DEVELOPMENT PROJECTS SEGOVIA MARMATO TOROPARU SOTO NORTE M&I RESOURCES1 M&I RESOURCES1 M&I RESOURCES1 M&I RESOURCES1 3.6Moz 15.3g/t 6.0Moz 3.0g/t 5.3Moz 1.3g/t 7.0Moz 5.6g/t PRODUCTION POTENTIAL PRODUCTION POTENTIAL 20
Slide 7: Financial Strength
2 Financial Strength Increasing profitability. Free cash flow generation. Strong liquidity, low leverage. INCREASING REVENUE, PROFITABILITY AND FREE CASH FLOW (US$)1 REVENUE ADJUSTED EBITDA FREE CASH FLOW AFTER TAXES (LTM) (LTM) & GROWTH INVESTMENTS (LTM) $1.2B $690M $105M STRONG BALANCE SHEET (US$)
Slide 8: Experienced Leadership
3 Experienced Leadership Board of Directors Management A blend of prominent mining industry leaders and influential business figures, Our executives have years of experience working together, with demonstrated ability including three former Colombian government ministers and a leading Colombian to s
Slide 9: 2025 Operating Performance and 2026 Guidance
2025 Operating Performance and 2026 Guidance Delivered on guidance in 2025. On track to deliver on guidance in 2026. Production Growth on Track 2025 Performance and 2026 Guidance ✓ 2025 production exceeded guidance mid-point Performance 2025 Guidance 2026 Guidance 2025 Actuals Relative to ✓ 22% prod
Slide 10: Building Momentum
Building Momentum Record financial results driven by production growth, strong gold prices and solid cost controls. Gold Ounces Sold Gold Revenue (US$M) & Adjusted EBITDA Adjusted Net Earnings Per (koz) Avg. Realized Gold Price (US$/oz) (US$M) Share1 (US$/share) LTM: LTM: LTM: LTM: 292 koz $1.2B $69
Slide 11: Multiple Catalysts Driving Growth to Moz per Year
Multiple Catalysts Driving Growth to 1 Moz per Year1 Four assets advancing through clearly defined milestones in 2026 and beyond Target Annual Gold Mine / Project Q4 2026 Catalysts 2027 and Beyond Production Colombia Near-term Growth from • ~300 koz/year steady state Producing Assets SEGOVIA ~300 ko
Slide 12: Partnership with Contract Mining Partners
Partnership with Contract Mining Partners How the partnership works • Aris Mining partners with local formal SEGOVIA MARMATO SOTO NORTE contract mining companies (Contract Mining Partners or CMPs) at its mines in Colombia # of CMPs 42 7 (7 IMP, 27 EMP, 8 TP)1 (4 IMP, 4 SCF)2 • CMPs supply mill feed
Slide 13: Aris Mining x CMPs
Aris Mining x CMPs Mutually Beneficial Partnership and Lasting Positive Impact ARIS MINING CMPs ✓ Increases gold production with attractive ✓ Enhanced economics & working capital financing economics ✓ Safer and more responsible operations through ✓ Extends mine life access to industrial processing c
Slide 14: Key Investment Considerations
Key Investment Considerations Cash generating gold producer with peer-leading growth. High-quality asset base in prolific gold belts, with 100% ownership across four core assets Clear, well sequenced organic pathway to one million ounces per year1 Strong balance sheet and cash flow generation to fun
Slide 15: Asset Portfolio
ASSET PORTFOLIO TSX & NYSE: ARIS
Slide 16: Segovia
SEGOVIA TSX & NYSE: ARIS
Slide 17: Segovia: One of the World's Highest-Grade Gold Mines
SEGOVIA One of the world’s highest-grade gold mines MINERAL RESERVES & RESOURCES1 1.5Moz 3.6Moz P&P GOLD RESERVES M&I GOLD RESOURCES AT 10.7 g/t AT 15.3 g/t ANNUAL GOLD PRODUCTION 265-300koz 300koz 2026 GUIDANCE STEADY STATE SITE FACTS • Location: Antioquia, Colombia (~180 km northeast of Medellín)
Slide 18: Segovia: Significant and Expanding Margins
SEGOVIA Significant and Expanding Margins Strong AISC Margin Growth (US$ million) Total AISC and Realized Gold Price Trends (US$/oz) LTM: $629M AISC Margin/oz Realized Gold Price/oz $199 Combined AISC/oz Owner Mining AISC/oz $4,898 $157 $4,489 $151 $4,237 $122 $3,494 $3,303 $87 Q2 margin $2,855 $2,5
Slide 19: Segovia: Focus on Underground Development
SEGOVIA Focus on Underground Development • Segovia H1 2026 capital investment of $48 million, including $31 million in Q2 and $17 million in Q1. EL SILENCIO SANDRA K o Includes $32 million on underground development, $11 million on exploration and $5 million on other projects and equipment. • Underg
Slide 20: Marmato
MARMATO TSX & NYSE: ARIS
Slide 21: Marmato: Production Ramp-Up Starting in Q4 2026
MARMATO Production Ramp-Up Starting in Q4 2026 MINERAL RESERVES & RESOURCES1 MINERALIZATION CROSS SECTION 3.2Moz 6.0Moz Narrow Vein Mining Zone Bulk Mining Zone P&P GOLD RESERVES M&I GOLD RESOURCES AT 3.2 g/t AT 3.0 g/t Fortaleza and Northern prospects ANNUAL GOLD PRODUCTION 35-50koz 200koz 2026 GUI
Slide 22: Marmato: Construction Update: Bulk Mining Zone
MARMATO Construction Update: Bulk Mining Zone ACCESS TO BULK MINING ZONE COMPLETE • Los Indios crosscut completed in April 2026, providing direct access from the Bulk Mining Zone to the new CIP plant • Stopes are being prepared to establish an initial stockpile to support CIP plant commissioning and
Slide 23: Marmato: Mine ready. Mill on schedule.
MARMATO Mine ready. Mill on schedule. CONSTRUCTION PROGRESS • Main civil, mechanical, and electrical works are advancing • SAG and ball mills: mechanical installation underway • The crusher area is moving into mechanical installation • Leach tanks and CIP circuit are progressing well • Tailings thic
Slide 24: Marmato: Construction Update: CIP Plant
MARMATO Construction Update: CIP Plant Watch the latest construction update video on our website. TSX & NYSE: ARIS 24
Slide 25: Toroparu
TOROPARU TSX & NYSE: ARIS
Slide 26: Toroparu: Long-Life, Low-Cost Open Pit Gold Project in Guyana
TOROPARU Long-Life, Low-Cost Open Pit Gold Project in Guyana1 MINERAL RESOURCES2 5.3Moz 1.2Moz M&I GOLD RESOURCES INFERRED GOLD AT 1.3 g/t RESOURCES AT 1.6 g/t PRODUCTION POTENTIAL 5.0Moz 235koz LIFE OF MINE LOM ANNUAL AVERAGE KEY METRICS >21 years <$1,300/oz MINE LIFE AISC3 $820M $1.8B INITIAL CONS
Slide 27: Toroparu: Preliminary Economic Assessment Results
TOROPARU Preliminary Economic Assessment Results1 ANNUAL PROCESSED GOLD GRADE AND TOTAL GOLD PRODUCTION 2.00 300 1.06 1.08 1.16 1.14 1.15 1.06 1.00 1.02 1.02 1.04 1.18 0.98 0.99 1.00 250 Gold produced (koz) - 200 (1.00) 150 227 246 241 243 246 213 224 217 218 219 215 220 (2.00) 100 50 (3.00) 60 - (4
Slide 28: Toroparu: Project Location
TOROPARU Project Location Toroparu Oko West Puruni Landing Toroparu (ARIS) Oko West (GMIN) Bridge construction Groundbreaking ceremony of Puruni bridge (Sept 5, 2026) TSX & NYSE: ARIS 28
Slide 29: Soto Norte
SOTO NORTE TSX & NYSE: ARIS
Slide 30: Soto Norte: One of the Most Attractive Gold Projects in the Americas
SOTO NORTE One of the Most Attractive Gold Projects in the Americas SUMMARY MINERAL RESERVES & RESOURCES (Au Moz)1 • Location: Santander, Colombia (~350 km from Bogota) • Soto Norte is a high-grade, low cost, long-life underground project, designed to use proven and safe mining and processing 4.6Moz
Slide 31: Soto Norte: Prefeasibility Study Results
SOTO NORTE Prefeasibility Study Results ANNUAL PROCESSED GOLD GRADE AND GOLD PRODUCED IN CONCENTRATES1,2 350 9.62 9.82 10.29 8.74 8.92 9.05 8.75 8.17 8.44 7.64 10.0 300 5.32 250 Gold Production (koz) 5.0 200 Au (g/t) 150 294 308 - 262 268 271 263 253 216 229 100 171 158 -5.0 50 - -10.0 Y1 Y2 Y3 Y4 Y
Slide 32: Soto Norte: Responsible Development Approach
SOTO NORTE Responsible Development Approach COMMUNITY PROCESSING CAPACITY MINIMAL WATER USE AND SURFACE A processing plant with 20% excess capacity (750 tpd) TAILINGS STORAGE to facilitate local, small scale miner formalization Recycling system will allow 96.5% water reuse. Almost half of the produc
Slide 33: Well Sequenced Growth Pipeline to 1 Moz/year
Well Sequenced Growth Pipeline to 1 Moz/year1 Near-term Growth from Longer-term Growth from Strong Financial Producing Assets Development Projects Foundation (US$) Colombia Guyana ADJUSTED EBITDA (LTM)2 $690M SEGOVIA TOROPARU FREE CASH FLOW AFTER TAXES & GROWTH INVESTMENTS (LTM)2 $105M Colombia Colo
Slide 34: Appendix
Oliver Dachsel – SVP, Capital Markets Appendix odachsel@aris-mining.com Lillian Chow – Director, Investor Relations & Communications info@aris-mining.com | www.aris-mining.com lchow@aris-mining.com TSX & NYSE: ARIS
Slide 35: Capitalization Overview
Capitalization Overview Current x EBITDA 1 (US$ million) (adjusted) Price Yield Coupon Maturity Rating Cash2 419 Corp: B1 / B+ / B+ Gold-Linked Secured 7.5% Notes3 16 0.02x 282 n/a 7.500% 26-Aug-27 -- Senior Unsecured 8.000% Notes3 450 0.7x 101.896 7.296% 8.000% 31-Oct-29 B1 / B+ / B+ Total debt 466
Slide 36: Capital Markets Profile
Capital Markets Profile Clean capital structure. Dual listed on NYSE and TSX. Significant trading volume. Growing institutional support. MONTHLY TRADING VALUE & TOP 15 SHAREHOLDERS KEY METRICS (US$) SHARE PRICE PERFORMANCE (LTM)1,2 1 VanEck 7.3% Trading in Canada (US$M) MARKET AVERAGE DAILY Trading
Slide 37: Aris Mining's Origin
Aris Mining’s Origin Unlocking value through scale and diversification. CALDAS SOTO NORTE MARMATO SOTO NORTE SEGOVIA MILL TWO MAJOR NYSE GOLD (20%) EXPANSION (51%) EXPANSION STUDIES UPLISTING Acquired Aris Gold PROJECT (PFS/PEA) Uplisted from Acquired an Commissioned control of acquired a 20% Receip
Slide 38: Q2 & H1 2026 Operating Performance
Q2 & H1 2026 Operating Performance Q2 2026 Q1 2026 H1 2026 Consolidated Gold produced (ounces) 73,710 74,339 148,049 Segovia Tonnes milled (t) 202,480 175,370 377,850 Average gold grade processed (g/t) 10.23 12.41 11.24 Gold produced (ounces) 64,424 66,567 130,991 AISC ($/oz) – Owner Mining $1,767 $
Slide 39: Q2 & H1 2026 Financial Results
Q2 & H1 2026 Financial Results (in US$ millions, unless stated otherwise) Q2 2026 Q1 2026 H1 2026 Revenue remained strong in Gold revenue 320.9 363.8 684.7 Q2, over $680M in gold revenue generated in H1 2026. Income from mining operations 167.1 203.7 370.8 EBITDA 162.5 181.9 344.5 Adjusted EBITDA wa
Slide 40: Mineral Reserves & Resources
Mineral Reserves & Resources Property Proven Probable Proven & Probable Tonnes Gold grade Contained Tonnes (kt) Gold grade Contained Tonnes (kt) Gold grade Contained (kt) (g/t) gold (koz) (g/t) gold (koz) (g/t) gold (koz) Marmato 2,196 4.31 304 29,082 3.08 2,874 31,277 3.16 3,178 Soto Norte 2,600 8.
Slide 41: Technical Disclosure
Technical Disclosure Unless otherwise indicated, the scientific disclosure and technical information included in this presentation are based upon information included in the following documents and NI 43-101 compliant technical reports: 1. Technical report entitled “Technical Report for the Marmato