Announcement PDF Hong Kong, October 2026 ASX: LKE; OTC: LLKKF lakeresources.com.au Investor Presentation Presenter: Stuart Crow, Non-Executive Chairman Disclaimers General Statement and Cautionary Statement This presentation has been prepared by Lake Resources N.L. (Lake) for information purposes and not any particular party. The information in this presentation is based upon public information and internally developed data and reflects prevailing conditions and views as of this date, all of which are accordingly subject to change. The information contained in this presentation is of general nature and is not intended to address the circumstances of any particular individual or entity. There is no guarantee that the information is accurate as of the date it is received or that it will continue to be accurate in the future. No warranties or representations can be made as to the origin, validity, accuracy, completeness, currency or reliability of the information. No one should act upon such information without appropriate professional advice after a thorough examination of the particular situation. Lake Resources NL accepts no responsibility or liability to any party in connection with this information or views and Lake disclaims and excludes all liability (to the extent permitted by law) for losses, claims, damages, demands, costs and expenses of whatever nature arising in any way out of or in connection with the information, its accuracy, completeness or by reason of reliance by any person on any of it. The information regarding projects described in this presentation are based on exploration targets, apart from the Kachi project’s resource statement. The potential quantity and grade of an exploration target is conceptual in nature, with insufficient exploration to determine a mineral resource and there is no certainty that further exploration work will result in the determination of mineral resources or that potentially economic quantities of lithium will be discovered. Forward Looking Statements Certain statements contained in this presentation, including information as to the future financial performance of the projects, are forward-looking statements. Such forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable by Lake Resources N.L. are inherently subject to significant technical, business, economic, competitive, political and social uncertainties and contingencies; involve known and unknown risks and uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results, expressed or implied, reflected in such forward-looking statements; and may include, among other things, statements regarding targets, estimates and assumptions in respect of production and prices, operating costs and results, capital expenditures, reserves and resources and anticipated flow rates, and are or may be based on assumptions and estimates related to future technical, economic, market, political, social and other conditions and affected by the risk of further changes in government regulations, policies or legislation and that further funding may be required, but unavailable, for the ongoing development of Lake’s projects. Lake Resources N.L. disclaims any intent or obligation to update any forward-looking statements, whether as a result of new information, future events or results or otherwise. The words “believe”, “expect”, “anticipate”, “indicate”, “contemplate”, “target”, “plan”, “intends”, “continue”, “budget”, “estimate”, “may”, “will”, “schedule” and similar expressions identify forward-looking statements. All forward-looking statements made in this announcement are qualified by the foregoing cautionary statements. Investors are cautioned that forward-looking statements are not guarantees of future performance and accordingly investors are cautioned not to put undue reliance on forward-looking statements due to the inherent uncertainty therein. Lake does not undertake to update any forward-looking information, except in accordance with applicable securities laws. Compliance Statement The information in this presentation that relates to Exploration Results, Mineral Resources and/or Ore Reserves is based on, and fairly represents, information and supporting documentation prepared by a Competent Person(s) whose details are set out in the relevant ASX announcements pertaining to Exploration Results, Mineral Resources and/or Ore Reserves. Those announcements are available on the company's website and on the ASX platform at www.asx.com.au. Statements related to Mineral Resources and/or Ore Reserves have subsequently been reviewed by Mr. Michael Gabora, MAIG, the company’s current Competent Person, who considers the estimates and the underlying assumptions to remain reasonable and appropriate based on the available information. In connection with the issuance of the Environmental Impact Declaration (“DIA”), the Catamarca Ministries of Environment and Mining have adopted in Kachi’s DIA a 200m surficial exclusion zone surrounding the lagoon shoreline as part of Kachi’s environmental management framework to define the spatial and operational boundary between project activities and the lagoon ecosystem. The Company is updating its Mineral Resource Estimate to incorporate the 200 m lagoon exclusion zone adopted under the DIA. Based on current assessments, the exclusion zone is not expected to materially affect the existing Ore Reserve Estimate or the wellfield development plan supporting the planned 25,000 tpa LCE production profile. Other than this, the company confirms that it is not aware of any new information or data that materially affects the information included in those announcements and, in the case of estimates of Mineral Resources or Ore Reserves, that all material assumptions and technical parameters underpinning those estimates continue to apply and have not materially changed. The form and context in which the Competent Person's findings are presented have not been materially modified. 2 Lake Resources Leadership Strong commitment to responsible lithium development  Experienced leadership strongly aligned to shareholder value creation  Strong relationships with the government of Argentina and Catamarca  Experienced, well-credentialed and highly motivated leadership team ready to deliver on Lake’s strategy and accelerate the Company’s next phase of Kachi development Actively pursuing clear strategy with significant upside  STUART CROW Non-Executive Chairman • 40+ years in corporate finance, investor relations, and critical minerals, with strong track record raising capital for emerging listed companies • Board-level experience across global resource companies, including Atlantic Lithium, Pulsar Helium, and Ricca Resources • Active mining investor and entrepreneur, with international experience across Australia, Africa, North and South America DAVID DICKSON Managing Director / CEO • CEO of Lake since 2022, with 30+ years in engineering, EPC, and energy project delivery across global resource and infrastructure sectors • Former CEO of McDermott International, where he led multi-billion-dollar projects and grew the company to 30,000+ employees across 50+ countries; previously President of Technip USA • Energy transition and hydrogen sector leader, serving with the World Hydrogen Council, Quantum Energy Partners Advisory Board, and other industry and safety organizations ROBERT TRZEBSKI Non-Executive Director • 35+ years global mining executive experience, spanning exploration, project development, technology innovation, and strategic advisory • Former senior roles with Rio Tinto, WMC, Inco, Falconbridge, Schlumberger and Phelps Dodge, with extensive international experience including Argentina; currently Director International Business at Austmine • Non-Executive Director of Lake Resources since 2019, Board member of Austral Gold; PhD-qualified geophysicist and Fellow of AusIMM Board of Directors 3 Corporate Overview 4 Capital Structure Share Price A$ 0.04 Basic Shares 2,483M Fully Dilutes Shares Outstanding 3,137M Market Capitalization (undiluted) A$ 99M Market Capitalization (fully diluted) A$ 126M Cash1 A$ 10.1M Debt Nil 22.7% 75.3% 2.0% Source: Company filings, Corporate Registry as of October 7, 2026. 1 Cash balance as of September 30 2026 Top 10 Shareholders KMP Others Shareholder Structure Indexed Share Price Performance Since Oct-2026 50% 150% 250% 350% 450% 550% Oct-2025 Jan-2026 Apr-2026 Jul-2026 Oct-2026 21 % Performance % 12M 9M 6M 3M 1M Lake Resources 21 % (72)% (51)% (9)% (9)% 1 Kachi is owned 80% by Lake Resources and 20% by Lilac Solutions. 2 Refer to ASX announcement 4 August 2025 – Kachi Project Definitive Feasibility Study Addendum. 3 Refer to ASX announcement dated 4 August 2025 – Updated Lithium Ore Reserve. Kachi Project1 Highlights Location Catamarca Province, Argentina Project Stage  Phase 1 DFS completed in December 2023  Phase 1 DFS Addendum completed in August 2025  Exploitation EIA approved September 2026, preparing for FEED stage Products Battery-Grade Lithium Carbonate (>99.5% purity) Resources2  11.1 million tonnes LCE — Measured and Indicated: 8.2 million tonnes LCE — Inferred: 2.9 million tonnes LCE  DFS Update Design basis: 249 mg/L2 — Average concentration of ore reserve estimate: 268 mg/L3 Project Execution Approach  Phase 1: 25 ktpa target plant capacity  Potential Phase 2: construction of second plant with additional total capacity of 25 ktpa Mine Life 25 years2 One of the Largest, Independent Development Projects Across the Lithium Triangle Kachi project site between 2023 and 2024 during pilot program which has subsequently been completed. 5 Accomplishments 2026-2027+ Key Objectives Source: Public Company Statements | 1 Refer to ASX announcement dated 19 December 2023. 2 Refer to ASX announcement dated 26 March 2024. 3 Refer to ASX announcement dated 6 May 2024. 4 Refer to ASX announcement dated 3 June 2025. 5 Refer to ASX announcement 4 August 2025 – Updated Lithium Ore Reserve 6 Refer to ASX announcement dated 2 July 2025. 7 Refer to ASX announcement dated 3 August 2026. 8 Refer to ASX announcement dated 29 September 2026. 2023  Successfully completed demo plant – processed 5.2 million litres of brine and produced more than 1,300kg of >99.5% purity lithium carbonate  Completed Kachi Phase One DFS1 2024  Submitted Environmental Impact Assessment (EIA)2  Signed letter of intent (LOI) with YPF-Luz for power supply3  Right-sized business and cost structure to reflect current scope of activities 2025  JORC Update increased total resource to 11.1 Mt LCE4  Ore reserve statement estimated 268 mg/L lithium grade5  Completed power supply FEED6  Completed Kachi Phase One DFS Addendum  RAMSAR site zoning formally approved for Carachi Pampa lagoon in major step towards EIA approval 2026  Inter-agency technical evaluation complete  EIA public consultation held Aug 20267  DIA approval granted end of Sep 20268  Advancing Kachi into Front-End Engineering Design (FEED) Phase8  RIGI application substantially complete  Optimize technical and commercial power solutions  Submit RIGI Application  Secure offtake/project capital  Complete project FEED  Achieve FID  Produce first lithium 33- months post-FID with full capacity 42-months post-FID 1 2 3 Significant Milestones Achieved in 2026 Following Successful 2023- 2025 Execution on Kachi 6 Kachi Phase One DFS Addendum Highlights 7 Transformational Project Improvements: Significantly Enhanced Economics & Operational Efficiencies1 US$ 1.16B Capex US$ 5,895/t Opex US$ 1.5B2 Pre-Tax NPV10 22.5% Pre-Tax IRR 249mg/L Plant Design Basis  8.2 Mt LCE Measured & Indicated resource (+12% vs. Original DFS)  11.1 Mt LCE Total Resource (+5% vs. Original DFS)  ~22% reduction in well count (vs. Original DFS)  15-20% reduction in plant footprint (vs. Original DFS)  Completion of FEED marks achievement of critical de- risking milestone for grid power  Lilac Gen 4 IX technology improvements • ~90% recovery rate (+13% vs. Original DFS) • 50% reduction in number of DLE modules • 39% lower DLE Capex and 40% lower DLE Opex • Greater throughput and longer IX media cycle  Further Capex and Opex reduction possible due to improved brine concentration of 268 mg/L and Lilac Gen5 Ion Exchange technology3 Resource Excellence & De-risking Technology and Cost Optimization 1 Refer to ASX announcement dated 4 August 2025. 2Based on lithium carbonate average price of $20.5/kg. 3Refer to Lilac announcement dated 28 October 2025. Source: Benchmark Minerals Lithium Mine Supply Forecasts June 2026, Lithium in Chile: Present Status and Future Outlook https://www.sciencedirect.com/org/science/article/pii/S263354092400625X, RIGI Provisions 1 As of June 2026 2 For companies with RIGI approval 20% of world’s lithium reserves 16 RIGI approved projects totaling ~US$30B1 2.6% Monthly inflation down from ~26% in Dec. 2023 25% Flat corporate tax2 Investor Protections2 Concessions granted in perpetuity, accelerated depreciation, zero export duties after year 3, no customs duties Lithium Triangle: Lithium Resources and Production 39% 27% 41% 19% 64% 47% 40% 9% 11% 2% Lithium Resource 0% Production 2026E 1% Production 2035E Others Bolivia Chile Argentina Argentina is an Ideal Location for Investment Streamlined Permitting Favorable environmental permitting process administrated by Province, not federally 30 yr Fiscal stability period Kachi's RIGI Application to be Filed in the Coming Months Kachi Sits In an Attractive Mining Jurisdiction In Argentina With a Supportive Regulatory Environment 8 Nevada IX Material Manufacturing Utah Engineering California Technology and HQ 1 2 3 Santiago LATAM Business & Operations Support 4 Source: Lilac Solutions. GSL = Great Salt Lake Project Lilac Investors Focused on Scale Founded 2016 Granted Patents 44+ Capital Raised $315M+ DOE Award $100M Lilac’s Proven Ion Exchange DLE Technology Performance Low Cost Environment Friendly Ready to Deploy US-Sourced Attractive economics across salar, reservoir, produced water, and geothermal brines Significantly reduces land and freshwater needs US design & manufacturing mitigates supply chain risks 5,000 tpa Li2CO3 (Phase 1) in Great Salt Lake (GSL), USA coming online in 2028 Pilot Plants 8 Lilac’s Global Footprint Proven, Scalable Production of Battery-Grade Lithium Carbonate Using Lilac Ion-Exchange DLE Technology GSL First Lithium 2028 9 Export Credit Agencies of the United Kingdom (UKEF) and Canada (EDC) have provided Expression of Interest of Support of Kachi Subject to due diligence, financing to be ~10+ years on a limited recourse project financing basis with a levered capital structure 100% Political Risk Insurance coverage from Export Credit Agencies to support commercial lenders Leveraging U.S. based Lilac and potential global offtake partners for engagement with additional Export Credit Agencies Citibank and J.P. Morgan Engaged as Joint Coordinators for Proposed Debt Financing for Kachi with GKB Ventures Ltd and SD Capital Advisory Limited acting as Debt Advisors to Lake 10 Lithium Market Overview 11 Rising demand has pushed the lithium market into a deficit starting in late 2025 which deepened in 2026, leading to lithium chemical and spodumene prices more than doubling in the course of the year Source: Benchmark Mineral Intelligence Giga Africa 2026 Lithium demand growth in 2026 driven by the BESS sector Lithium supply growth in 2026 driven by Africa and China Lithium Demand Growth 12 Global lithium demand is expected to reach 4.1 Mt in 2035 a ~100% increase over 2026’s 2.1 Mt. Shifting market dynamics support higher prices as a result of strengthening demand in the short and medium term Source: Benchmark Mineral Intelligence Lithium Forecast, Q3 2026 1.3 1.6 2.1 2.3 2.5 2.7 2.8 3.0 3.3 3.6 3.8 4.1 2026 2030 2035 Global Lithium Demand (Mt LCE) 2026 Demand 2.1 Mt Y-o-Y Change +29% 2035 Demand 4.1 Mt CAGR ’26-35 +8% Long Term Lithium Carbonate Incentive Price (2036 – 2050) $23,600 /t Lithium Battery Demand by Region (kt LCE) Lake Resources Strategic Priorities 13 o Submit RIGI application o Advance Front End Engineering Design (FEED) o Complete Technical Power Optimization o Finalize Offtake and Strategic Partnership Process o Match Cost Structure and Liquidity With Key Priorities o Achieve FID Key areas of focus in 2026 and beyond Appendix 15 Note: This table has been directly extracted from the Mineral Resources Estimate announced on ASX on 3 June 2025. Apart from what is described on Page 2 of this presentation under “Compliance Statement”, Lake Resources N.L. confirms that it is not aware of any information that materially affects the information included in the Mineral Resources Estimate announced on ASX on 3 June 2025 and all material assumptions contained in that announcement continue to apply and have not materially changed. Measured May 2025 (to 600 m depth) Unit Sediment Volume (m 3 ) Specific Yield % Brine Volume (m 3 ) Liters Li (mg/l) Li (Grams) Li (Tonnes) Tonnes LCE A 10,339,000,000 7.8 806,442,000 806,442,000,000 210 169,352,820,000 169,000 901,000 B 4,385,500,000 8.8 385,740,000 385,740,248,000 229 88,334,517,000 88,000 470,000 C to 400 7,561,800,000 6.8 514,202,000 514,202,400,000 230 118,266,552,000 118,000 629,000 Fan West to 400 11,088,000,000 9.5 1,053,360,000 1,053,360,000,000 220 231,739,200,000 232,000 1,233,000 K24 – K25 below 400 7,744,200,000 9.3 720,211,000 720,210,600,000 250 180,132,593,000 180,000 958,000 Total 41,118,500,000 3,479,955,000 3,479,955,248,000 787,825,682,000 788,000 4,191,000 Unit Sediment Volume (m 3 ) Specific Yield % Brine Volume (m 3 ) Liters Li (mg/l) Li (Grams) Li (Tonnes) Tonnes LCE A 3,870,500,000 8.0 309,640,000 309,640,000,000 185 57,283,400,000 57,000 305,000 B 1,569,100,000 7.9 123,959,000 123,958,900,000 191 23,676,150,000 24,000 126,000 C 5,446,470,000 7.4 404,338,000 404,338,308,000 218 88,218,532,000 88,000 469,000 Fan North 9,109,970,000 10.2 929,217,000 929,216,940,000 232 215,578,330,000 216,000 1,147,000 Fan South 2,767,500,000 9.3 257,378,000 257,377,500,000 239 61,513,223,000 62,000 327,000 Under volcano 6,718,700,000 7.4 500,187,000 500,187,059,000 193 96,425,185,000 96,000 513,000 Total 29,482,240,000 - 2,522,621,000 2,522,620,663,000 - 542,294,093,000 542,000 2,885,000 Inferred May 2025 Mineral Resource Estimate Table Unit Sediment Volume (m 3 ) Specific Yield % Brine Volume (m 3 ) Liters Li (mg/l) Li (Grams) Li (Tonnes) Tonnes LCE A (South) 3,694,300,000 7.6 278,924,000 278,924,453,000 181 50,485,326,000 50,000 269,000 B (South) 1,489,000,000 7.5 111,544,000 111,543,670,000 179 19,927,611,000 20,000 106,000 C (South) 4,434,492,000 6.7 297,111,000 297,110,964,000 182 54,076,275,000 54,000 288,000 A (North) 3,075,200,000 9.5 292,144,000 292,144,000,000 232 67,776,824,000 68,000 361,000 B (North) 4,294,400,000 10.2 438,029,000 438,028,800,000 241 105,431,342,000 105,000 561,000 C (North) 4,115,300,000 10.2 419,761,000 419,760,600,000 182 76,396,429,000 76,000 406,000 D (North) 5,073,100,000 10.2 517,456,000 517,456,200,000 182 94,177,028,000 94,000 501,000 K21 8,304,500,000 6.5 541,394,000 541,393,608,000 192 103,822,511,000 104,000 552,000 Under Measured ABC 400 – 600 7,453,100,000 6.7 501,818,000 501,817,968,000 242 121,529,774,000 122,000 647,000 Under Measured Fan 400 – 600 3,775,900,000 6.3 239,343,000 239,343,351,000 242 57,850,485,000 58,000 308,000 Total 45,709,292,000 3,637,524,000 3,637,523,614,000 0 751,473,605,000 751,000 3,998,000 Combined Measured + Indicated 86,827,792,000 7,117,478,861 7,117,478,861,140 1,539,299,286,959 1,539,299 8,189,000 Indicated May 2025 (to 600 m depth) Reserve Statement Note: This table has been directly extracted from the Updated Ore Reserve statement announced on ASX on 4 August 2025, with minor changes due to arithmetic errors. Lake Resources N.L. confirms that it is not aware of any information that materially affects the information included in the Updated Ore Reserve statement announced on ASX on 4 August 2025 and all material assumptions contained in that announcement continue to apply and have not materially changed. Reserve Category Years Lithium (Tonnes) LCE (Tonnes) Average Lithium (mg/L) Proved 1 4,380 23,310 270 Proved 2 – 7 28,360 150,850 270 Probable 8 – 25 85,060 452,540 267 Total 1 – 25 117,800 626,700 Reserve Statement 16