Endeavour Silver Corp. · TSX:EDR

Endeavour Silver — Investor Presentation (July 2025)

45 slides from Endeavour Silver's investor presentation, Jul 3, 2025

  1. Slide 1: Growth on the Horizon

    Growth on the Horizon July 2025 November 2024 TSE: EDR | NYSE: EXK TSX: EDR | NYSE: EXK www.edrsilver.com

  2. 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

  3. 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

  4. Slide 4: Investor Highlights

    Investor Highlights MID-TIER BUILDING SIGNIFICANT LEADING STRATEGICALLY SILVER MEXICO’S NEXT ORGANIC SILVER ACQUIRING KEY PRODUCER SILVER MINE GROWTH LEVERAGE ASSETS Two high grade, Terronera Leading organic A leader in silver Opportunistic underground commissioning growth profile in price beta, anc

  5. Slide 5: 2025 Outlook – Core Assets Focused in Mexico

    2025 Outlook – Core Assets Focused in Mexico Exploration Operation Development 2023 CONSOLIDATED OUTLOOK (3) Parral Project Guanacevi Mine Chihuahua State, Mexico 2025 CONSOLIDATED OUTLOOK (2) (3) Durango State, Mexico 4.5 – 5.2 Moz $25 - $26/oz Silver Production All-in Sustaining Costs, Net of Gold

  6. Slide 6: 2024 Sustainability Highlights

    2024 Sustainability Highlights TSX: EDR | NYSE: EXK 6

  7. Slide 7: Recent Developments

    Recent Developments Bolanitos 17% STEADY MOMENTUM WITH Q2 2025 PRODUCTION • Consolidated production was 1,483,736 oz Ag and 7,755 oz Au • Silver equivalent(1) production of 2.5 million oz, including base metal production Kolpa from Kolpa 32% Guanacevi TERRONERA RAMP UP PROGRESSES STEADILY IN Q2 51%

  8. Slide 8: Kolpa Mine

    Kolpa Mine Peru 40% Ag 60% Pb, Zn, Cu Metals Mix Production • 2016-2023: 9.1 Moz Ag, 100.1 kt Pb, 79.1 kt Zn, 4.1 kt Cu • 2024: 2.0 Moz Ag, 19.8 kt Pb, 12.6 kt Zn, 0.5 kt Cu (5.1 Moz AgEq) TSX: EDR | NYSE: EXK 8 1. Full details in the appendix, under Reserves and Resources 8

  9. Slide 9: Strategic Acquisition of Endeavour’s Third Producing Mine

    Strategic Acquisition of Endeavour’s Third Producing Mine CONSISTENT WITH PLAN TO BECOME SENIOR SILVER PRODUCER • Fully funded operating silver asset, expected to increase Endeavour’s production profile by 5.0 Moz AgEq, assuming continued production at Kolpa is consistent with 2024 production • Stra

  10. Slide 10: Kolpa – Integration Progressing Smoothly

    Kolpa – Integration Progressing Smoothly ADVANCING OPERATIONAL ALIGNMENT • Ensuring seamless integration of systems, teams, and operational processes • The team remains focused on maintaining steady output and advancing Kolpa’s contribution to the Company’s long-term growth strategy Q2 2025 PRODUCTI

  11. Slide 11: Kolpa Project Overview

    Kolpa Project Overview (1) • Huachocolpa District, Huancavelica, Peru Location • 490 km SE of Lima • Avg elevation: 4,400 metres above sea level • 143 mining rights covering 25,177 ha of Land Package effective area and one beneficiation concession covering 366 ha • Silver polymetallic mineralization

  12. Slide 12: Kolpa Mining Concessions

    Kolpa Mining Concessions Total:143 Rights ( 25,177 Ha) • Kolpa holds mining rights to 143 mining concessions and claims covering 25,177 ha, and one beneficiation concession covering 366 ha. 63 of those mining claims comprise the Administrative Economic Unit (UEA) Huachocolpa Uno • 23 mining concessi

  13. Slide 13: Guanacevi Mine

    Guanacevi Mine Durango 80% Ag 20% Au 2024 Mine Plan, Metals Mix Production • 2005 - 2023: 53.5M oz Ag, 135k oz Au • 2024: 4.0M oz Ag, 13.8k oz Au Reserves(1) : • Proven – 0.2 million tonnes at 506 g/t AgEq containing 3.3 million AgEq oz. TSX: • Probable – 0.3 million tonnes at 414 g/t AgEq TSX: cont

  14. Slide 14: Guanacevi – Q2 Production On Track

    Guanacevi – Q2 Production On Track MAINTAINED CONSISTENT PRODUCTION IN Q2 AgEq Quarterly Production (oz)(1) Production in line with plan, with gold production slightly above plan and silver production at the lower end of the planned range 1,535,161 1,334,447 1,282,853 THROUGHPUT AND GRADE IN LINE WI

  15. Slide 15: Guanacevi – Delivering High Grade Drill Results

    Guanacevi – Delivering High Grade Drill Results PROLIFIC AREA CONTINUITY TO THE EAST POTENTIAL Situated along prolific Intersecting excellent Connecting El Curso to One continuous Santa Cruz vein 15 km results with step-out holes Porvenir Dos orebody - comparable long, producing in area from the mar

  16. Slide 16: Bolanitos Mine

    Bolanitos Mine Guanajuato 80% Au 20% Ag 2024 Mine Plan, Metals Mix Production • 2007 - 2023: 17.4M oz Ag, 361.9k oz Au • 2024: 0.5M oz Ag, 25.2k oz Au Reserves(1) : • Proven: 0.08 million tonnes at 259 g/t AgEq containing 0.6 million AgEq oz • Probable: 0.3 million tonnes at 222 g/t AgEq containing

  17. Slide 17: Bolanitos – Continues to Perform

    Bolanitos – Continues to Perform AgEq Quarterly Production (oz)(1) Q2 2025 PRODUCTION Lower throughput in May and June, silver and gold production were both slightly below plan 621,292 622,779 621,972 538,386 440,678 FREE CASH FLOW Bolanitos provides optionality to the gold price and exploration ups

  18. Slide 18: Terronera Project

    Terronera Project Jalisco 60% Ag 40% Au Reserve, Metals Mix • Endeavour’s next core asset • Wet commissioning commenced in Q2 2025 • 2 defined mineralization areas: • Terronera • La Luz • Proposed LOM + 10 years (optimized scenario) TSX: TSX: • Probable Reserves(1) : EDR • EDR| NYSE: 7.4 million ton

  19. Slide 19: Terronera – Mexico’s Next Silver Mine

    Terronera – Mexico’s Next Silver Mine STEADY RAMP-UP UNDERWAY ALMOST 100% ORGANIC GROWTH • Endeavour’s largest mine and next operating mine • 10 years of technical work has prepared the project for construction including 6 technical reports (105,000 m of drilling) EXPECTED TO NEARLY DOUBLE PRODUCTIO

  20. Slide 20: Terronera – Advancing Toward Commercial Production

    Terronera – Advancing Toward Commercial Production COMMISSIONING AND RAMP-UP PROGRESSING STEADILY • Daily production averaged 1,400 tpd in the second half of June • Plant throughput gradually increasing as operational bottlenecks and system issues are identified and resolved SENIOR SECURED DEBT FACI

  21. Slide 21: 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 veins

  22. Slide 22: Pitarrilla Project

    Pitarrilla Project, Durango 60% Ag 40% Pb, Zn Resource metals mix • Acquired from SSR Mining in July 2022 • Silver dominant project with extensive historical database and comprehensive work completed to date : • SSR invested $140 million to advance the project since 2002 TSX: TSX: • +225,000 metres

  23. Slide 23: Pitarrilla – One of the World’s Largest Undeveloped Silver Projects

    Pitarrilla – One of the World’s Largest Undeveloped Silver Projects ENHANCES ORGANIC GROWTH PROFILE ORGANIC GROWTH POTENTIAL • Complimentary to regional existing platform in Mexico • Provides both open pit and underground optionality SUPPORTED BY LARGE RESOURCE • Maintains growth portfolio geared to

  24. Slide 24: 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 • Confirmed management’s geological interpretation and identified directly above the manto at least four structures extending through

  25. Slide 25: Pitarrilla – Summary of Historically Contemplated Operations

    Pitarrilla – Summary of Historically Contemplated Operations 2009 PFS(1,3) MODELLED ON AN UNDERGROUND MINE • 4,000 tpd mining operation over 12-year mine life ENDEAVOUR SILVER IS EVALUATING THE BUSINESS • Targets sulphides beyond the limits of conceptual OP mine CASE FOR AN UNDERGROUND MINE, FOCUSED

  26. Slide 26: Pitarrilla – Opportunity & History of the Project

    Pitarrilla – Opportunity & History of the Project Focus pivots to expanding resources with evaluation of open-pit SSR shifts focus of the project to reducing initial concepts following surge in silver price capex and maximizing returns Pre-feasibility study published, Feasibility study Scoping study

  27. Slide 27: Parral Project

    Parral Project, Chihuahua 10% 90% Ag other Resource metals mix • Acquired Parral from SSR Mining in 2016 • Located in prolific silver mining district • 4 distinct mineralized vein systems • Veta Colorado • San Patricio • Palmilla • Cometa TSX: TSX:EDR EDR| NYSE: | NYSE: EXK EXK 27

  28. Slide 28: Parral – Potential Core Asset

    Parral – Potential Core Asset SURFACE VIEW – 4 MINERALIZED AREAS HISTORIC SILVER PRODUCING DISTRICT • Existing development / access to ore from past producers • Historic annual production was 4 million Ag oz until 1990 from the Veta Colorada mine • Palmilla – highest grade silver mine in Mexico in 1

  29. Slide 29: Sector Leading Organic Growth Strategy

    Sector Leading Organic Growth Strategy Guanacevi Bolanitos Kolpa OPERATIONS 4.0M oz Ag, 13.8k oz Au 0.5M oz Ag, 25.2k oz Au 2.0 Moz Ag, 19.8 kt Pb, 12.6 kt Zn, 0.5 kt Cu 2024 production (5.1 Moz AgEq) (2.5 Moz AgEq) (5.1 Moz AgEq) Terronera DEVELOPMENT Next core asset in Jalisco, near Puerto LOM pro

  30. Slide 30: Shareholder Information

    Shareholder Information CAPITAL STRUCTURE KEY DATA Issued/outstanding* 289.5 million Exchange listings NYSE:EXK, TSX:EDR, FSE:EJD Potentially dilutive units* 5.9 million Working capital US$15 million Total diluted shares* 295.4 million Cash position US$65 million Recent closing price – NYSE (July 7,

  31. Slide 31: Focused on Becoming a Premier Senior Silver Producer

    Focused on Becoming a Premier Senior Silver Producer Optimize Extend Mine Develop Advance Growth Grow Through Terronera TSX: EDR | NYSE: EXK Operations Lives Pipeline M&A Focus on delivering mine free Complete wet Drill world class Pitarrilla Acquire new mines that Continue exploration cash flow; ra

  32. Slide 32: Appendix

    Appendix Endeavour Silver Suite 1130-609 Granville Street Vancouver, BC Canada V7Y 1G5 TF: 1 877 685 9775 P: 604 685 9775 info@edrsilver.com Allison Pettit Director, Investor Relations TSX: TSX: apettit@edrsilver.com EDR EDR | NYSE: | NYSE: EXK EXK 32

  33. Slide 33: 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

  34. Slide 34: 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 Oz Tonnes (000s) Ag g/t Au g/t Ag Eq g/t Ag oz (000s) Au oz (000s) (000s) Pb% Zn% Guanaceví 363 208 0.26 229 2,421 3.1 2,670 0.78 1.32 Pitarrilla In Pit (Oxide & Transition) 133,90

  35. Slide 35: 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

  36. Slide 36: 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

  37. Slide 37: Qualified Persons

    Qualified Persons Guanacevi and Bolanitos 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 Guanacevi Report ”) with an effective date of November 5, 2022, and “NI 43-101 Techni

  38. Slide 38: Non-IFRS Financial Measures for Kolpa

    Non-IFRS Financial Measures for Kolpa Consolidated Production - Cash Costs, AISC and Direct Costs TSX: EDR | NYSE: EXK 1. Please see the Kolpa Technical Report for more information. 38

  39. Slide 39: Non-IFRS Financial Measures for Kolpa

    Non-IFRS Financial Measures for Kolpa Income Statement, Revenue & Cost Reconciliation INCOME STATEMENT EXTRACTS Twelve Months Ended December 31, (2) REVENUE BY METAL TYPE Twelve Months Ended December 31, Expressed in thousands US dollars 2024 2023 Expressed in thousands US dollars 2024 2023 Sales &

  40. Slide 40: 2023 Optimized Plan (2,000 tpd) Compared to 2021 FS

    2023 Optimized Plan (2,000 tpd) Compared to 2021 FS Detailed View - 2,000 TPD Plant Compared to 2021 FS 2023 2021 % Change Silver Price 20.00 20.00 0% Gold Price 1,575 1,575 0% Silver: Gold Ratio 79 79 0% Operating Statistics LOM Tonnes Processed LOM (thousands) 7,382 7,380 0% Life of Mine (Years) 1

  41. Slide 41: 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 Average gold grade (g/t) 2.25 2.13 TCRC $15.25 , 17% Silv

  42. Slide 42: 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 p roduction costs per ounce, all-in sustaining costs per ounce, direct production costs per tonne, silver co-product cash costs and gold co-product cash c

  43. Slide 43: Management Team

    Management Team Dan Dickson, CPA, CA, Don Gray, Ing., MBA, MSE, Elizabeth Senez, FCA CEO COO (ICAEW) CFO TSE: EDR | NYSE: EXK Greg Blaylock, B.Sc, MSE, Luis Castro, Ing., Geo. Dale Mah, B.Sc., P.Geo. VP Operations SVP Exploration VP Corporate Development 43

  44. Slide 44: Board of Directors

    Board of Directors Rex McLennan, B.Sc., Dan Dickson, CEO Margaret Beck MBA, ICD.D Director, CPA, CA B.Sc. Director and Chairman and Audit Director Corp. Gov. & Nom. Committee Chair Committee Chair TSE: EDR | NYSE: EXK Amy E. Jacobsen Ken Pickering Mario Szotlender Angela Johnson QP, P.E., MBA P. Eng

  45. Slide 45: TSX: EDR | NYSE: EXK

    45 TSX: EDR | NYSE: EXK

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