Endeavour Silver Corp. · TSX:EDR
Endeavour Silver — Investor Presentation (September 2026)
33 slides from Endeavour Silver's investor presentation, Sep 9, 2026
Slide 1: Growth on the Horizon
Growth on the Horizon C O R P O R AT E P R E S E N TAT I O N SEPTEMBER 2026 TSX: EDR | NYSE: EXK edrsilver.com
Slide 2: Cautionary Note
Cautionary Note This presentation contains “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and "forward-looking information" within applicable Canadian securities legislation. Such forward-looking statements and information herein
Slide 3: Non-IFRS Financial Measures
Non-IFRS Financial Measures The Company has included certain performance measures that are not defined under International Financial Reporting Standards (IFRS). The Company believes that these measures, in addition to conventional measures prepared in accordance with IFRS, provide investors an impro
Slide 4: Investor Highlights
Investor Highlights Mid-tier Silver Operating Mexico’s Significant Leading Silver Strategically Producer Newest Silver Mine Organic Growth Leverage Acquiring Key Assets Two underground silver gold mines Terronera commercial production Leading organic growth profile in A leader in silver price beta,
Slide 5: Core Assets and Outlook
Core Assets and Outlook ABOUT ENDEAVOUR SILVER Parral Endeavour Silver is a mid-tier silver producer with mining operations in Chihuahua Exploration Mexico and Peru. In addition to its operational mines, the Company Guanaceví Operation maintains a diverse portfolio of exploration projects across Mex
Slide 6: Silver Miners Trade at Higher Multiples Compared to Gold
Silver Miners Trade at Higher Multiples Compared to Gold Few Pure Silver Producers Endeavour Silver is one of the few primary • Silver mining shares trade at a premium to gold mining shares due to the scarcity of primary silver mining companies silver producers with over 60% revenue from • Mid-tier
Slide 7: Terronera Mine, Jalisco
Terronera Mine, Jalisco OPERATING MINE Reserve, Metals Mix 60% Ag 40% Au +10 YRS 2,000 Life of Mine Tonnes per day Endeavour’s newest mine 2 • Terronera Defined mineralization areas • La Luz Probable Reserves(1) • 7.4 million tonnes at 374 g/t AgEq containing 88.8 million AgEq oz 1. Full details in
Slide 8: Terronera: Endeavour's Newest Mine
Terronera: Endeavour’s Newest Mine Q2 2026 Direct Costs Per Tonne Ramp-Up Initiatives • Silver grades in line with plan and are expected to increase during H2 as processing costs mining operations access higher grade areas 22% • LNG plant began commissioning in June and is now in operation with mine
Slide 9: Terronera: Exploration Opportunities
Terronera: Exploration Opportunities TERRONERA PROJECT SURFACE VIEW TERRONERA VEIN • Endeavour controls 25 concessions totaling 20k hectares • The Terronera vein holds over 90% of the defined reserve • +50 mines on +50 known veins • Inferred envelope is open along strike and at depth • Thick vein wi
Slide 10: Kolpa Mine, Peru
Kolpa Mine, Peru OPERATING MINE Metals Mix 40% Ag 60% Pb, Zn, Cu 2016-2024 Production 11.1M 119.9 91.7 4.6 oz Ag kt Pb kt Zn kt Cu 2025 Production (May 1 – December 31, 2025) 1.6M 14.9 9.0 0.3 oz Ag kt Pb kt Zn kt Cu (3.4 Moz AgEg) 1. Full details in the appendix, under Reserves and Resources TSX: E
Slide 11: Kolpa: Integration Progressing Smoothly
Kolpa: Integration Progressing Smoothly Advancing Operational Alignment Q2 2026 Direct Costs Per Tonne • Kolpa acquisition closed on May 1, 2025 • Focus remains on maintaining steady output and advancing Kolpa’s 3% 9% processing costs contribution to the Company’s long-term growth strategy mining co
Slide 12: Kolpa: Mining Concessions
Kolpa: Mining Concessions Total: 145 Rights (25,786 Ha) • Kolpa holds mining rights to 120 mining concessions covering 23,741 ha, and one beneficiation concession covering 366 ha. 63 of those mining claims comprise the Administrative Economic Unit (UEA) Huachocolpa Uno • Includes 23 mining concessio
Slide 13: Guanaceví Mine, Durango
Guanaceví Mine, Durango OPERATING MINE Metals Mix 80% Ag 20% Au 2005-2024 Production 2025 Production 61.4M 149k 3.9M 13.7k oz Ag oz Au oz Ag oz Au Reserves(1) • Proven – 0.2 million tonnes at 506 g/t AgEq containing 3.3 million AgEq oz. • Probable – 0.3 million tonnes at 414 g/t AgEq containing 3.4
Slide 14: Guanaceví: Maintaining Steady Production
Guanaceví: Maintaining Steady Production AgEq Quarterly Production (Oz)(1) Q2 2026 Production • Guanaceví throughput was 4% higher than Q2 2025 and in line with plan 1,282,853 1,279,860 1,117,703 • Produced 955,070 AgEq (1) ounces in Q2 2026 1,042,779 955,070 • Drilling continued throughout Q2, focu
Slide 15: Guanaceví: Delivering High Grade Drill Results
Guanaceví: Delivering High Grade Drill Results Prolific Area Continuity To The East Potential Situated along prolific Santa Cruz vein Intersecting excellent results with Connecting El Curso to One continuous orebody - comparable to 15 km long, producing in area since step-out holes from the margins
Slide 16: Pitarrilla Project, Durango
Pitarrilla Project, Durango EXPLORATION ADVANCED Resource Metals Mix 60% Ag 40% Pb, Zn 2022 $140M Acquired from SSR Mining SSR invested to advance the project since 2002 +225,000 600 Moz Ag metres in drilling Defined by NI 43-101 Silver dominant project with extensive historical database and compreh
Slide 17: Pitarrilla: One of the World's Largest Undeveloped Silver Projects
Pitarrilla: One of the World’s Largest Undeveloped Silver Projects Organic Growth Potential Enhances Organic Growth Excellent Infrastructure in Supported By Large Resource Profile Place • Complimentary to regional existing • Road access platform in Mexico • Connected to power grid and water • Provid
Slide 18: Pitarrilla: Exploration Supports Underground Mining Potential
Pitarrilla: Exploration Supports Underground Mining Potential Pitarrilla Cross Section Pitarrilla Plan View • Underground exploration ramp extended over 1.3km, lying directly • Confirmed management’s geological interpretation and identified at least above the manto four structures extending through
Slide 19: Pitarrilla: Summary of Historically Contemplated Operations
Pitarrilla: Summary of Historically Contemplated Operations Endeavour Silver is evaluating the business case for 2009 PFS(1,3) Modelled on an Ag 4 an underground mine, focused on the high-grade core Key LOM Metrics Underground Mine of the deposit Average Head Grade (gpt) • 4,000 tpd mining operation
Slide 20: Shareholder Information
Shareholder Information 55% Institutional Capital Structure $3.3B 296.1M issued/outstanding Market Cap 31.3M potentially dilutive shares 327.4M total diluted shares $11.13 $15.15/$5.75 45% Retail *As of June 30, 2026 NYSE share price NYSE 52-week high/low Sept 9, 2026 $237M Top Shareholders Analysts
Slide 21: Sector Leading Organic Growth Strategy
Sector Leading Organic Growth Strategy OPERATIONS ADVANCED EXPLORATION GREENFIELDS Guanaceví Terronera (Oct 1-Dec 31, 2025) Pitarrilla Bruner 3.9M oz Ag 0.4M oz Ag One of largest known undeveloped 8.1k oz Au silver projects globally Gold project in Nevada 13.7k oz Au (5.0 Moz AgEq) (1.0 Moz AgEq) Ko
Slide 22: Contact
@edrsilvercorp @EDRSilverCorp Endeavour Silver Corp. @EDRSilverCorp Endeavour Silver Corp. Allison Pettit Endeavour Silver TF: 1 877 685 9775 Vice President, Investor Relations Suite 1130-609 Granville Street P: 604 685 9775 apettit@edrsilver.com Vancouver, BC info@edrsilver.com Canada V7Y 1G5 TSX:
Slide 23: 2026 Production & Cost Guidance
2026 Production & Cost Guidance(2) Sustaining Silver Gold Lead Zinc Copper Silver Eq Cash Costs AISC Operation Capital (Moz) (Koz) (k t) (k t) (T) (Moz)(1) ($/oz)(3) ($/oz)(3) ($M) Guanacevi 3.6 – 3.8 11.0 – 12.0 - - - 4.6 – 4.9 $21.00 - $22.00 $29.00 - $30.00 $24.5 Kolpa 2.3 – 2.5 - 22.0 – 24.0 16.
Slide 24: Mineral Reserves and Mineral Resources Estimates
Mineral Reserves and Mineral Resources Estimates Silver-Gold Proven and Probable Reserves (as of December 31, 2024) Tonnes (000s) Ag g/t Au g/t Ag Eq g/t Ag oz (000s) Au oz (000s) Ag Eq Oz (000s) Guanaceví 202 413 1.10 506 2,688 7.1 3,291 Bolanitos 75 79 2.13 259 190 5.1 625 Total Proven 277 323 1.3
Slide 25: Mineral Reserves and Mineral Resources Estimates (continued)
Mineral Reserves and Mineral Resources Estimates (continued) Silver-Lead-Zinc Resources (as of December 31, 2024) Ag Eq Tonnes (000s) Ag g/t Au g/t Ag Eq g/t Ag oz (000s) Au oz (000s) Pb% Zn% Oz (000s) Guanaceví 363 208 0.26 229 2,421 3.1 2,670 0.78 1.32 Pitarrilla In Pit (Oxide & Transition) 133,90
Slide 26: Notes to Mineral Reserves and Mineral Resources Tables
Notes to Mineral Reserves and Mineral Resources Tables 1. Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. There is no certainty that any or all part of the Mineral Resources will be converted into Mineral Reserves. The estimate of Mineral Resources may be
Slide 27: Notes to Mineral Reserves and Mineral Resources Tables (continued)
Notes to Mineral Reserves and Mineral Resources Tables (continued) Notes on the Pitarrilla Resource Estimate 18. The classification of the current Mineral Resource Estimate into Indicated and Inferred Mineral Resources is consistent with current 2014 CIM Definition Standards - For Mineral Resources
Slide 28: Qualified Persons
Qualified Persons Guanaceví and Bolañitos The Technical Reports are entitled “NI 43-101 Technical Report: Updated Mineral Resource and Reserve Estimates for the Guanaceví Project, Durango State, Mexico” (the “ 2022 Guanaceví Report ”) with an effective date of November 5, 2022, and “NI 43-101 Techni
Slide 29: Non-IFRS Financial Measures for Kolpa
Non-IFRS Financial Measures for Kolpa Consolidated Production - Cash Costs, AISC and Direct Costs KOLPA KEY METRICS CONSOLIDATED PRODUCTION (12 MONTHS ENDED DECEMBER 31) CALCULATION OF SILVER EQUIVALENT (AgEq) ounces produced 2024 2023 Prices $(USD) 2024 2023 Ore Tonnes processed 686,503 661,535 A
Slide 30: Non-IFRS Financial Measures for Kolpa
Non-IFRS Financial Measures for Kolpa Income Statement, Revenue & Cost Reconciliation INCOME STATEMENT EXTRACTS (12 MONTHS ENDED DECEMBER 31) (1) GROSS REVENUE RECONCILIATION (12 MONTHS ENDED DECEMBER 31) ALL-IN SUSTAINING COSTS (12 MONTHS ENDED DECEMBER 31) Expressed in thousands US dollars 2024 20
Slide 31: 2023 Optimized Plan (2,000 tpd) Compared to 2021 FS
2023 Optimized Plan (2,000 tpd) Compared to 2021 FS (continued) DETAILED VIEW - 2,000 TPD PLANT COMPARED TO 2021 FS 2023 2021 % Capital Expenditure Statistics Operating Cost Metrics Change Silver Price 20.00 20.00 0% Initial Capital Expenditure (millions) 230.4 175.0 32% 1,403. LOM Gross Revenue (mi
Slide 32: Terronera: Operational Metrics & Updated Initial Capex Scenario
Terronera: Operational Metrics & Updated Initial Capex Scenario Select Operating Metrics 2021 FS(1) Optimized(2) DIRECT COST PER TONNE LOM tonnes processed (thousands) 7,380 7,382 Life of Mine (Years) 12 10 Average silver grade (g/t) 197 196 17% TCRC - $15.25 29% Average gold grade (g/t) 2.25
Slide 33: Non-IFRS Measures
Non-IFRS Measures Endeavour Silver reports non-IFRS measures which include cash costs net of by-product revenue on a payable silver basis, total production costs per ounce, all-in sustaining costs per ounce, direct production costs per tonne, silver co-product cash costs and gold co-product cash cos
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