Marimaca Copper Corp. · TSX:MARI
Marimaca Copper — Investor Presentation (July 2025)
31 slides from Marimaca Copper's investor presentation, July 2025
Slide 1: Chile's New Copper Discovery
S OUTH AME R IC A MEJILLONES MARIMACA ANTOFAGASTA SANTIAGO CHILE’S NEW C H IL E COPPER DISCOVERY Exceptional Development Project, Outstanding Exploration Potential Investor Presentation | July 2025 TSX: MARI ASX: MC2 CHILE’S NEW COPPER DISCOVERY 1 Advancing Development With District Scale Potential
Slide 2: Disclaimer
Disclaimer This presentation includes certain forward-looking statements about future events and/or financial results which are forward- looking in nature and subject to risks and uncertainties. Such forward-looking statements or information, including but not limited to those with respect to the de
Slide 3: Introduction: Marimaca Copper Project
Introduction: Marimaca Copper Project MEJILLONES MARIMACA ANTOFAGASTA D F S underway SANTIAGO Continuous growth of evaluating simple, low oxide copper resources strip ratio, open pit CHILE operation Rapidly advancing Low execution risk CHUQUICAMATA MANTOS DE LA LUNA toward a construction with proxim
Slide 4: Marimaca: Green Copper
Marimaca: Green Copper Mining Project of the Future WATER – recycled seawater supply secured from the Bay of Mejillones POWER – certified renewable electricity supply available COMMUNITIES – no community land overlap, skilled local workforce IMPACT – limited flora & fauna impact expected in th
Slide 5: Water Supply: De-risked and sustainable
Water Supply: De-risked and sustainable Recycled seawater from Mejillones will supply the Marimaca Copper Project • Water option secured from the Bay of Mejilllones – recycled seawater ― De-risks water supply for the MARIMACA COPPER Marimaca Project – intake is already PROJECT permitted ~25km ― No u
Slide 6: Marimaca: Overview
Marimaca: Overview Infrastructure access lowers execution risk Close to all aspects required to build a mine Proximity to first class utilities and infrastructure Water, Power, Transport, Communications Within 25km of Port of Mejillones Access to all major consumables for a SX-EW Marimaca Oxide Depo
Slide 7: Marimaca: Mineral Resource Growth at the MOD
Marimaca: Mineral Resource Growth at the MOD Track record of Consistent resource growth through each drilling campaign M&I (MOD) Inferred (MOD) 1,250 kt 1,000 kt 750 kt 500 kt 250 kt 0 kt 2017 2018 2019 2022 2023 Maiden Mineral 2018 MRE(2): 2019 MRE(3): 2022 MRE(4): 2023 MRE(5): Resource - 290.5kt C
Slide 8: Marimaca Projects: 2025 / 2026 Work Programs
Marimaca Projects: 2025 / 2026 Work Programs Exploration and Development in Parallel 2025 2026 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 MOD DFS Permitting Approval Process First milestone under permitting process achieved in February 2024; receipt of ICSARA Project Project Advancement Detailed Design and Engineeri
Slide 9: MOD: 2023 Resource Update – De-risking Milestone
MOD: 2023 Resource Update – De-risking Milestone 86% of total resource tonnes now in Measured and Indicated categories 2023 MRE Plan View - MOD → Significant conversion of Inferred tonnage and contained metal over the 2022 MRE ― 44% increase in M&I Resource tonnes to 200Mt at 0.45% CuT for 900kt of
Slide 10: Marimaca Oxide Deposit: Why is it unique?
Marimaca Oxide Deposit: Why is it unique? Location & access to infrastructure / utilities deliver lower execution risk Route 1 – National Highway Antofagasta – 40km Port of Mejillones – 25km Existing 110kV Process Plant Powerline Existing Seawater Pipeline 7km Open Pit . Note: Marimaca Copper Projec
Slide 11: MOD Mining: Simple Open Pit Mining
MOD Mining: Simple Open Pit Mining Favorable deposit geometry has potential to improve economics → Low strip ratio with ore body exposed at surface - Favorable geometry of ore body has further reduced strip from MRE 1,500m → High grade zones from surface expected to be accessible early years of deve
Slide 12: MOD Processing: Simple SX-EW Processing
MOD Processing: Simple SX-EW Processing Low complexity processing supports robust project economics Marimaca PEA flowsheet Note: Marimaca Copper Project infrastructure shown per 2020 PEA layout which may or may not be similar or relevant for the Company’s CHILE’S NEW COPPER DISCOVERY 12 planned Defi
Slide 13: Marimaca Oxides: Extensive Met Work Completed
Marimaca Oxides: Extensive Met Work Completed Marimaca has completed rigorous met testing on materials across the deposit Tests completed on materials from across the full extent of the deposit and addressed all defined mineral subzones → Seven extensive phases of met testing complete Addressed all
Slide 14: Marimaca: Two-Pronged Strategy
Marimaca: Two-Pronged Strategy Exploration and Development in Parallel Continued de-risking of the MOD - Project permit submitted – target FID in H1 2026 Project - Phase 7 metallurgical program near complete Advancement - Water supply engagement complete – water option agreement signed - Strong expe
Slide 15: Complementary Resources: District Scale Potential
Complementary Resources: District Scale Potential Strong ‘repetition’ style discovery potential Cindy Target: Compelling complimentary resource 30-40Mt at 0.3-0.4% CuT Roble Target: potential adding leachable resources to 20-30Mt at 0.2-0.3% CuT the MOD production capacity Cedro Merecedes Target: 30
Slide 16: Complementary Resources: Sierra de Medina Region
Complementary Resources: Sierra de Medina Region Compelling district scale potential through exploration Sierra de Medina Claim Block Cachorro: Geological Setting 3,000kt Contained Cu 300 Mt at 1.0% Cu Pampa Medina & Madrugador Marimaca Oxide Deposit Pampa Medina & Madrugador: Oxide and Sulphide Mar
Slide 17: Complementary Resources: Sierra de Medina Region
Complementary Resources: Sierra de Medina Region Clear regional scale synergies – close to all major infrastructure CHILE’S NEW COPPER DISCOVERY 17 Advancing Development With District Scale Potential
Slide 18: Complementary Resources: Sierra de Medina Region
Complementary Resources: Sierra de Medina Region Compelling district scale potential through exploration Pampa Medina & Madrugador Acquisitions →o Both located ~25km from the planned MOD processing plant as defined in the ongoing DFS →o High grade, shallow, open-pitable historical oxide resource whi
Slide 19: Pampa Medina – a Potential Game Changer?
Pampa Medina – a Potential Game Changer? Clear oxide synergies with the MOD, but sulphide potential is compelling CHILE’S NEW COPPER DISCOVERY 19 Advancing Development With District Scale Potential
Slide 20: Pampa Medina – a Potential Game Changer?
Pampa Medina – a Potential Game Changer? Drilling to date has delineated material extensions at depth and along strike Long Section E406900 Looking West CHILE’S NEW COPPER DISCOVERY 20 Advancing Development With District Scale Potential
Slide 21: Pampa Medina – a Potential Game Changer?
Pampa Medina – a Potential Game Changer? Drilling to date has delineated material extensions at depth and along strike Cross Section N7440800 Looking North CHILE’S NEW COPPER DISCOVERY 21 Advancing Development With District Scale Potential
Slide 22: Pampa Medina – a Potential Game Changer?
Pampa Medina – a Potential Game Changer? Sediment-hosted copper, at this scale, potentially unique to Chile Drill Hole SMRD-13 CHILE’S NEW COPPER DISCOVERY 22 Advancing Development With District Scale Potential
Slide 23: Marimaca: Summary
Marimaca: Summary Advancing Development & Outstanding Potential → A unique development stage copper asset with a clear development pathway • Release of MOD DFS targeted for Q3 2024 Tier 1 Location • Confirmation of permitting under the DIA route, fast-tracking the permitting process for the project
Slide 24: Appendices
Appendices CHILE’S NEW COPPER DISCOVERY 20 Advancing Development With District Scale Potential
Slide 25: Experienced Board
Experienced Board Experienced and Leading explorational, invested Board and Deep experience in regional and financial copper and Chile management team experience Michael Haworth Hayden Locke Clive Newall Tim Petterson Non-Executive Chairman CEO, President & Director Non-Executive Director Non-Execut
Slide 26: Experienced Management
Experienced Management Experienced and Leading explorational, invested Board and Deep experience in regional and financial management team copper and Chile experience Hayden Locke Sergio Rivera Jose Antonio Merino Nico Cookson CEO, President & Director Vice President of Exploration Managing Director
Slide 27: Corporate Structure
Corporate Structure $10.00 200,000 $9.00 180,000 $8.00 160,000 $7.00 140,000 $6.00 120,000 $5.00 100,000 $4.00 80,000 $3.00 60,000 $2.00 40,000 $1.00 20,000 $0.00 0 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 Jun-25 Jul-25 Capital Structure Board Analyst Coverage Sto
Slide 28: 2023 Mineral Resource Estimate
2023 Mineral Resource Estimate Cut-off Measured Indicated Measured + Indicated Inferred grade (% CuT) Quantity Quantity Quantity Quantity CuT [%] CuS [%] CuT [%] CuS [%] CuT [%] CuS [%] CuT [%] CuS [%] kt kt kt kt 0.40 44.0 0.77 0.44 37.5 0.69 0.38 81.6 0.73 0.41 12.1 0.64 0.24 0.30 60.2 0.65 0.38 5
Slide 29: 2023 Mineral Resource Estimate by Mineralization
2023 Mineral Resource Estimate by Mineralization Mineral Resource Category and Quantity CuT CuS CuT CuS Type (kt) (%) (%) (t) (t) Measured Brochantite 31,293 0.62 0.45 194,890 141,442 Chrysocolla 24,252 0.44 0.33 105,594 79,863 Wad/Black oxides 10,727 0.29 0.15 30,599 16,116 Mixed 18,626 0.51 0.13 9
Slide 30: Marimaca Copper – Commitment to Sustainability
Marimaca Copper – Commitment to Sustainability Health, Safety and Security Constructive Stakeholder The health, safety and wellbeing of our Engagement employees is at the forefront of We value the trust and support from our everything we do. We implement the local stakeholders. We endeavor to work h
Slide 31: Chile's New Copper Discovery
CHILE’S NEW COPPER DISCOVERY Advancing Development With District Scale Potential CHILE’S NEW COPPER DISCOVERY 27 Advancing Development With District Scale Potential