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A Growing Australian Copper Producer Copper to the World September 2026 Bob Fulker Chief Executive Officer & Managing Director (Formerly Hillgrove Resources Limited)
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Disclaimer To the maximum extent permitted by law, neither Kantra nor its related corporations, directors, officers, employees or agents, nor any other person, accepts any liability, including, without limitation, any liability arising from fault or negligence, for any loss arising from the use of this presentation or its contents or otherwise arising in connection with it. Kantra is under no obligation to release any updates or revisions to this presentation to reflect any change in expectation or assumptions and disclaim all responsibility and liability for these forward-looking statements (including, without limitation, liability for fraud or negligence). Nothing contained in this Document constitutes investment, legal, tax or other advice. The information in this Document does not take into account the investment objectives, financial situation or particular needs of any recipient. Before making an investment decision, each recipient of this Document should make its own assessment and take independent professional advice in relation to this Document and any action taken on the basis of this Document. All currency referred to is Australian dollars ($) unless otherwise indicated (e.g. US$). Forward Looking Statement This presentation contains or may contain certain forward-looking statements and comments about future events, that are based on Kantra's beliefs, assumptions and expectations and on information currently available to management as at the date of this presentation. Often, but not always, forward-looking statements can generally be identified by the use of forward-looking words such as "may", "will", "expect", "plan", "believes", "estimate", "anticipate", "outlook", and "guidance", or similar expressions, and may include, without limitation, statements regarding plans, strategies and objectives of management, anticipated production and production potential, financial forecasts, product quality estimates of future Mineral Resources and Ore Reserves. Such statements are only expectations or beliefs and are subject to inherent risks and uncertainties which could cause actual values, results or performance achievements to differ materially from those expressed or implied in this announcement. Where Kantra expresses or implies an expectation or belief as to future events or results, such expectation or belief is expressed in good faith and on a reasonable basis. No representation or warranty, express or implied, is made by Kantra that the matters stated in this presentation will in fact be achieved or prove to be correct. Except as required by law, Kantra undertakes no obligation to provide any additional or updated information or update any forward-looking statements whether as a result of new information, future events, results or otherwise. Readers are cautioned against placing undue reliance on forward-looking statements. These forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties, assumptions and other important factors, many of which are beyond the control of Kantra, the directors, and management of Kantra. These factors include, but are not limited to difficulties in forecasting expected production quantities, the potential that any of Kantra's projects may experience technical, geological, metallurgical and mechanical problems, changes in market prices and other risks not anticipated by Kantra, changes in exchange rate assumptions, changes in product pricing assumptions, major changes in mine plans and/or resources, changes in equipment life or capability, emergence of previously underestimated technical challenges, increased costs, and demand for production inputs. Competent Persons Statement As an Australian company with securities listed on the Australian Securities Exchange (ASX), Kantra is subject to Australian disclosure requirements and standards, including the requirements of the Corporations Act and the ASX. Investors should note that it is a requirement of the ASX listing rules that the reporting of ore reserves and mineral resources in Australia comply with the 2012 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code). The information in this report that relates to the 2025 Kanmantoo Mineral Resource Estimate and the 2025 Ore Reserve is extracted from ASX release titled ‘Hillgrove Resources Delivers Ore Reserve Extension at 1.0%CuEq’ dated 30 October 2025 and is available to view at www.kantra.com. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the Mineral Resource Estimate and Ore Reserve in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcements. The information in this report that relates to the 2024 Kanmantoo Mineral Resource Estimate is extracted from ASX release titled “Maiden Kanmantoo Underground Ore Reserve And 96% Increase In Copper Mineral Resource Endowment” dated 18 October 2024 and is available to view at www.kantra.com. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the Mineral Resource Estimate and Ore Reserve in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcements. The information in this report that relates to planned drilling opportunities was extracted from the ASX release titled ‘2026 Kanmantoo Exploration Update’ previously released on the 11 Dec 2025 and “Exploration Target Defined for Kanappa Drilling Program” released on the 16 April 2026 and is available to view at www.kantra.com. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the information in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. The information in this report that relates to exploration drilling results was extracted from the ASX release titled ‘High-grade Intersects Extend Spitfire Mineralisation’ previously released on the 27 August 2026 and is available to view at www.kantra.com. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the information in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. The information that relates to the Mutooroo Mineral Resource is extracted from two ASX releases. The first titled ‘Mutooroo Copper-Cobalt Deposit Resource Statement’ dated 18 October 2010, and the second titled ‘New Mutooroo Cobalt Resource’ dated 5 June 2020. Both announcements are available to view at www.asx.com.au and at https://www.havilah-resources.com.au/. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and that all material assumptions and technical parameters underpinning the Mineral Resource Estimate in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcements. Important Notice and Disclaimer 2
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Growing Copper Producer Derek Carter Chair Bob Fulker CEO & Managing Director Murray Boyte Non-Exec. Director Roger Higgins Non-Exec. Director Luke Anderson CFO & Co. Sec. Note: Currency is in Australian dollars unless otherwise stated 1. Closing share price on 31 August 2026. 2. Cash balance as at 30 June 2026. 3. Refer to Results for Half Year Ended 30 June 2026 released on 20 August 2026. 4. Register analysis is based on a point-in-time snapshot dated 23 July 2026 and may not reflect later trading activity. With strong development & exploration pipelines 3 13.9% BOARD & MANAGEMENT Share price1 $1.10 Shares on issue1 235.9 M Market capitalisation $260 M Debt Nil Cash2 $32 M Enterprise value $228 M Options on issue 9.7 M Income tax losses (est. & unaudited) $260 M Franking credits3 $18 M ASX:KAN SUBSTANTIAL SHAREHOLDER4 SHARE DISTRIBUTION4 13.9% 25.9% 3.3% 1.0% 56% Freepoint Institutions excl Freepoint Havilah Resources Board & management Others
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4 Copper Market Outlook Copper demand is projected to rise ~50% by 2040, driven primarily by energy transition 4 The number of new copper discoveries has fallen sharply since the 2000s, while average grades have declined Increasing Cash costs reflect grade decline, deeper mining and inflationary pressures Higher incentive prices are required to bring new supply online, contributing to a growing market deficit Sources: All charts and data adapted from S&P Global, “Copper in the Age of AI: Challenges of Electrification.”
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6.19 5.97 2025 H1 2026 AISC $/lb payable Cu Sold Delivering and Growing the Business Building blocks to value creation 5 H1 5,545 H1 6,290 H2 5,770 2025 2026 Cu Production - tonnes H1 12.6 H1 34.8H2 13.4 2025 2026 EBITDA $Million Guidance1: 12,750 – 14,000 Guidance1: 5.75 – 6.25 Delivery ▪ Emily Star Exploration Drive complete, development approved2 ▪ Kavanagh North Exploration Drive development commenced ▪ Major capital $15-17 million in 20261 ▪ Near-mine exploration incl. Saddle Zone, Paringa, Valentine & Critchley GROWTH Growth Opportunities ▪ Utilise latent plant capacity ▪ Inorganic growth opportunities ▪ Mutooroo Farm-In, Pre-Feasibility Study commenced ▪ Regional exploration incl. Kanappa ▪ Assessment of inorganic growth opportunities as they arise Mine Life & Throughput Upsides ▪ Kanmantoo mine life extension ▪ Focusing on 2+Mtpa pathway (currently at 1.8Mtpa) 1. Refer to ASX release on 22 January 2026 titled “Quarterly Report for 31 December 2025, Hillgrove Resources Delivers on 2025 Guidance and Sets Path for 2026”. 2. Refer to ASX release on 17 July 2026 titled ‘Emily Star Development Approved, Capital Guidance Updated’.
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6 Kanmantoo Copper Mine (100%) Latent capacity enables material production and cost reduction upside 160 kt Cu Contained 120 koz Au Contained 22 Mt Resources Resources1 34 kt Cu Contained 29 koz Au Contained 4.0 Mt Reserves Reserves1 Fully Permitted Operation 3.6 Mtpa Processing Plant 1.8 Mtpa UG Run Rate ~95% Cu Recovery >70% Renewable Grid power 6.0 Mt TSF Capacity >95% Local Workforce 1. Refer to ASX release on 30 October 2025 titled “Hillgrove Resources Delivers Ore Reserve Extension at 1.0%CuEq”. 2. Refer to ASX release on 17 July 2026 titled ‘Emily Star Development Approved, Capital Guidance Updated’. TSF Plant Crusher ROM Backfilled Emily Star Pit UG Workshop Railway 2 Active Mining Fronts 700m/mth Development 3rd Mining Front2 Under Development 55km From Adelaide Strong Support By Local Communities Railway On Premise Giant Pit Gird Power
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7 Nugent Kavanagh To be updated Monday 2026 Planned Stopes 2026 Planned Development Existing Development to Aug 2026 Existing Void to Aug 2026 Existing Backfill to Aug 2026 Nugent Kavanagh Open at depth Open at depth Open at depth Open at depth North Kavanagh Spitfire
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Emily Star Development Approved ▪ Geological continuity confirmed ▪ No material geotechnical risks identified ▪ $20 - $22 million capital requirement to completion, in addition to the $2.9 million spent to end of June ▪ $6.5 – 7.5 million spending in H2 2026 ▪ Resource update expected in October ▪ Stope production to commence in H2 2027 ▪ Development commenced from underground with surface preparation underway under existing Programme for Environment Protection and Rehabilitation (PEPR) ▪ Full PEPR update in progress, approval expected ahead of commencing stoping Third mining front under development to provide optionality 1 Emily Star development and stoping plan based on the 2024 Emily Star Mineral Resource Update 1,2 1. Refer to ASX release on 17 July 2026 titled ‘Emily Star Development Approved, Capital Guidance Updated’. 2. Refer to ASX release on 18 October 2024 titled “Maiden Kanmantoo Underground Ore Reserve And 96% Increase In Copper Mineral Resource Endowment”. Image updated with latest development. 8
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Near-Mine Prospects 1. Refer to ASX release on 11 December 2025 titled “Kanmantoo 2026 Exploration Update”. 2. Refer to ASX release on 1 September 2026 titled “High-grade Intersects Extend Spitfire Mineralisation”. 9 13 Targets within 1 km from the Kanmantoo Processing Facility1 Plan View of Location of Target Zones1 ▪ Spitfire resource extension drilling returned high-grade intersects2, results will be incorporated into the 2026 MROR update scheduled for October ▪ Emily Star mine design includes drill platforms enabling future underground drilling at Critchley and Paringa ▪ Matthew & Coopers scheduled for inclusion in the 2027 North Kavanagh drilling program
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10 ▪ PFS Phase 1 – Focused on material risk items, namely rail logistics and metallurgical test work – expected to conclude in the December Quarter1 ▪ Rail logistics: o Potentially 0.7 – 1 Mtpa ore transport o Assessing potential siding locations for Mutooroo o Kanmantoo siding assessment underway with concentrate backhaul under consideration ▪ Metallurgical testing: o Preliminary lab flotation testing shows no fatal flaws o Optimal grind size and process configuration investigation underway 1. Refer to Company June 2026 Quarterly Report released on 21 July 2026. Mutooroo Copper Project High-grade copper growth option unlocked by Kantra’s infrastructure advantage
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Regional Exploration 11 ▪ Strategic tenement holding at high-potential structural corridors ▪ Clear pipeline logic: Regional targets designed to complement Kanmantoo and extend long-term copper optionality ▪ Data-driven targeting: Integrating geophysics, structure, and historical datasets to rank highest-value prospects ▪ Active portfolio management to concentrate effort and capital on the most prospective parts of the province Current progress: ▪ Kanappa (EL 6526) – Drilling commenced in June 2026 and is continuing ▪ Firehawk (EL 6294) – Exploration Target expected in September 2026 ▪ Stakeholder engagement and desktop studies are underway across all remaining tenements, supporting prioritisation of the next phase of exploration Building a multi-asset copper growth pipeline Firehawk Kanappa
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12 Upcoming Milestones Building on consistent delivery to unlock future value Kanmantoo Operation H1 2026 H2 2026 Ramp up to 1.7-1.8Mtpa Run Rate Emily Star Stage 1 Drill Platform Drilling to Inform Stage 2 Decision Stage 2 Investment Decision Resources & Reserves Resources & Reserves Update Mutooroo Farm-In & Joint Venture Pre-Feasibility Study – Phase 1 Pre-Feasibility Study – Phase 2 Regional Exploration Kanappa – Approvals Kanappa – Exploration Target Kanappa – Drilling Firehawk – Geophysics Continue into 2027 Commenced in June 2026 Commenced in June 2026
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Copper Foundation, Multi-Asset Future Building the next mid-tier copper company Cu Strategy in Tier 1 Jurisdiction Robust Resources & Reserves Cash Generating Operation Latent Installed Capacity for Growth Mutooroo Copper Growth Option Near Mine Exploration Upside Potential 13
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To receive up-to-date company information, scan the QR code to join our Investor Hub Kantra Copper Limited 5-7 King William Road Unley SA 5041 info@kantra.com www.kantra.com Bob Fulker CEO & Managing Director +61 (0)8 7070 1698 Luke Anderson CFO & Joint Company Secretary +61 (0)8 7070 1698 Jane Brunton Head of Investor Relations & Growth +61 (0)8 7070 1698 Contact Thank you
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Appendix - Kanmantoo Mineral Reserve 15 Mine Area Classification Tonnes (kt) Cu (%) Au (ppm) CuEq (%) Ag (ppm) Cu Metal (kt) Au Metal (koz) Kavanagh Proved 1,500 0.96 0.11 1.0 2.8 14 5 Probable 900 0.89 0.19 1.0 2.9 8 5 Sub-Total 2,300 0.93 0.14 1.0 2.8 22 10 Nugent Proved 360 0.73 0.37 1.0 1.9 3 4 Probable 1,300 0.73 0.34 0.9 1.9 9 14 Sub-Total 1,600 0.73 0.35 0.9 1.9 12 19 Total Ore Reserves Proved 1,800 0.92 0.16 1.0 2.6 17 9 Probable 2,200 0.79 0.28 1.0 2.3 17 19 Total 4,000 0.85 0.22 1.0 2.4 34 29 Notes: 1. Dry metric tonnes. 2. Stope cut-off grade 0.8% CuEq (Copper Equivalent) to define development limits, 0.6% CuEq for stopes along defined development. Development cut-off grade 0.4% Copper. 3. Approximately 40,000 tonnes of Measured Mineral Resource has been converted to Probable Ore Reserves. The tonnes are in Nugent Mine Area and are contained in a region with high water inflows from intercepting diamond drill holes. Further work is required to determine a strategy to profitably mine these tonnes. 4. Reported Ore Reserves do not include any diluting Inferred or Unclassified material. The mine schedule includes 277kt at 0.2% Cu of non-Reserving material that is mined as unavoidable dilution. 5. Reported grades are rounded to two decimal places, copper equivalent to one decimal place. Tonnes are rounded to two significant figures. Minimum stoping widths of 5m true width. 6. Reported grades are rounded to two decimal places. Tonnes are rounded to two significant figures. 7. Any minor apparent discrepancies for sums in the table are due to rounding. 8. The period of economic extraction is from July 2025 to April 2028. 9. Ore Reserves are converted from Mineral Resources based on October 2025 Mineral Resources, reported herewith. 10. Competent Person: Mark Hamilton MAusIMM (#221080). 11. Over 18 months of mining actual demonstrates very good ground conditions. It is expected that this will continue, with Geotech modelling demonstrating stability over modelled life of mine. CuEq calculation takes into account all material cost drivers that differentiate value derived from copper and gold, expressed as copper grade in-situ. Drivers applied are concentrator recoveries, metal payability and metal prices. Silver (Ag) is not included in CuEq calculation due to immaterial value contribution. The following formula is used to calculate CuEq: CuEq = Cu% + (Au g/t / 31.1034 x Au Rec x Au Pay x Au Price) / Cu Pay / Cu Price / Cu Rec. Driving values used for 2025 ORE: Metal prices: Cu Price = US$3.85/lb, Au Price = US$3,000/Oz. Metallurgical recoveries: Cu Rec = 94.5%, Au Rec = 55% Payability: Cu Pay = 95%, Au Pay = 90%. It is Kantra’s view that all metals within this formula will be recovered and sold. Metallurgical recoveries are based on current plant performance. Metal payability is based on current concentrate quality and contracted marketing terms. The information is extracted from the report entitled “Hillgrove Resources Delivers Ore Reserve Extension at 1.0% CuEq”. released on 30 October 2025 and is available to view on the Kantra Website https://www.kantra.com. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. 15
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Appendix - Kanmantoo Mineral Resource Notes: 1. Due to effects of rounding, total numbers may not sum. 2. Inferred 1 – includes Kavanagh high grade Inferred; Central Kavanagh, North Kavanagh and Valentines Categorical Indicator Kriging (CIK) Inferred. 3. Inferred 2 – includes North Kavanagh high grade Inferred only 4. Inferred 3 – includes Nugent high grade and CIK Inferred 5. Inferred 4 – includes Valentines high grade Inferred only 6. Reporting criteria are: Measured, Indicated and Inferred material (RESCAT = 1 or RESCAT = 2 or RESCAT = 3), Cu >= 0.40% (CU_PCT >= 0.4), in-situ (VOIZONE = 0) with reasonable prospects of eventual economic extraction envelope (MREZONE = 1), Reasonable Prospects for Eventual Economic Extraction (RPEEE=1). 7. Tonnage and metal are rounded to the nearest 1,000 tonnes, grades are rounded to two significant figures. 8. Mineral Resource is reported at a 0.40% Cu cut-off grade for all mine areas. 9. Mineral Resource is depleted for mining to 30 June 2025. 10. Mine depletion refers to the current Kanmantoo underground operation, and historical Giant, Nugent and Emily Star open pits. The information is extracted from the report entitled ‘Hillgrove Resources Delivers Ore Reserve Extension at 1.0% CuEq’. released on 30 October 2025 and is available to view on the Kantra Website https://www.kantra.com. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. 16 Mine Area JORC Classification Tonnage Cu Au Ag Cu Metal Au Metal (kt) (%) (g/t) (g/t) (kt) (koz) Kavanagh (including Spitfire) Measured 4,200 0.80 0.11 2.7 33 15 Indicated 2,700 0.72 0.13 2.5 19 11 Inferred 1 5,800 0.65 0.14 2.5 38 26 Sub-Total 12,700 0.72 0.13 2.6 91 53 North Kavanagh Measured - - - - - - Indicated 180 0.78 0.12 3.4 1.4 0.7 Inferred 2 200 0.74 0.29 2.8 1.5 1.9 Sub-Total 380 0.76 0.21 3.0 2.9 2.6 Nugent Measured 550 0.83 0.38 2.3 4.6 6.7 Indicated 2,300 0.75 0.37 2.0 17 28 Inferred 3 2,800 0.78 0.26 1.9 22 24 Sub-Total 5,700 0.77 0.32 2.0 44 59 Valentines Measured - - - - - - Indicated 200 0.65 0.07 1.3 1.3 0.5 Inferred 4 340 0.55 0.05 1.2 1.9 0.5 Sub-Total 540 0.59 0.06 1.2 3.2 1.0 Emily Star No change to 2024 Measured - - - - - - Indicated - - - - - - Inferred 2,600 0.77 0.08 1.6 20 7 Sub-Total 2,600 0.77 0.08 1.6 20 7 TOTAL 22,000 0.74 0.17 2.3 160 120 16
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Appendix - Mutooroo Mineral Resource Notes: All figures in this table are rounded. The information is extracted from Mineral Resource Estimate stated in the Havilah Resources Limited Annual Report for the financial year ended 31 July 2025, first released in the Havilah ASX media release titled ‘Mutooroo Copper-Cobalt Deposit Resource Statement’, dated 18 October 2010, and ‘New Mutooroo Cobalt Resource’, dated 5 June 2020. The information that relates to the Mutooroo Mineral Resource is extracted from two ASX releases. The first titled ‘Mutooroo Copper-Cobalt Deposit Resource Statement’ dated 18 October 2010, and the second titled ‘New Mutooroo Cobalt Resource’ dated 5 June 2020. Both announcements are available to view at www.asx.com.au and at https://www.havilah-resources.com.au. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and that all material assumptions and technical parameters underpinning the Mineral Resource Estimate in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcements. 17 17 Classification Resource Category Tonnes Copper % Cobalt % Gold g/t Copper tonnes Cobalt tonnes Gold ounces Measured Oxide 598,000 0.56 0.04 0.08 Subtotal Oxide 598,000 0.56 0.04 0.08 3,300 200 1,500 Measured Sulphide 4,149,000 1.23 0.14 0.18 Indicated Sulphide 1,697,000 1.52 0.14 0.35 Inferred Sulphide 6,683,000 1.71 0.17 0.17 Subtotal Sulphide 12,529,000 1.53 0.16 0.20 191,700 20,000 80,600 TOTAL 13,127,000 195,000 20,200 82,100