Announcement PDF 12-14 November 2025 Noosa Mining Investor Conference Presenter: Stu 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 contained in this presentation relating to financial forecasts, production targets, exploration targets, exploration results, Measured, Indicated and Inferred resource estimates, project execution, infrastructure and testing work, has been derived from the information in Lake’s Kachi Project Phase One Definitive Feasibility Update Study Results (“DFS Addendum”) and Lake’s Updated Ore Reserve Statement (“Ore Reserve Update”) both announced on ASX on 4 August 2025 and mineral resource update announced on ASX on 3 June 2025. Lake confirms that it is not aware of any information that materially affects the information included in the DFS Addendum or the Ore Reserve Update both announced on ASX on 4 August 2025 and mineral resource update announced on ASX on 3 June 2025 and all material assumptions contained in those announcements continue to apply and have not materially changed, including all material assumptions underpinning the production targets or forecast information derived from production target, and all technical parameters underpinning the estimates of mineral resource and ore reserves. On this basis, Lake confirms that the findings of Mr. Andrew Fulton, the Competent Person, in the DFS Addendum and the Ore Reserve Update both announced on ASX on 4 August 2025 and, in respect of Lake’s mineral resource, in the mineral resource update announced on 3 June 2025,have not changed nor been modified in any material respects since those announcements. 1Kachi is owned 80% by Lake Resources and 20% by Lilac Solutions. 2Refer to ASX announcement 4 August 2025 – Kachi Project Definitive Feasibility Study Addendum. 3Refer to ASX announcement dated 4 August 2025 – Updated Lithium Ore Reserve. About Lake Resources 3 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 approval now expected in 2026 Products Battery Grade Lithium Carbonate (>99.5% purity) Resources2  11.1 Mt LCE — Measured and Indicated: 8.2 Mt LCE — Inferred: 2.9 Mt LCE  DFS Update Design basis: 249mg/L2 — Average brine concentration: 268mg/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 (including additional expansion in subsequent phases) Mine Life 25 years2 Strong commitment to responsible lithium development  Experienced leadership strongly aligned to shareholder value creation  Strong relationship with the provincial government of Catamarca  Developing a world class global lithium asset in Argentina – the largest, independent development project across the lithium triangle with significant expansion potential Clear strategy with significant upside  Major Milestones Achieved in 2025 4 De-Risking Kachi Through Strategic Advancement 1 Refer to ASX announcement dated 4 August 2025. 2 Refer to ASX announcement dated 3 June 2025. 3 Refer to ASX announcement 4 August 2025 – Updated Lithium Ore Reserve. 4 Refer to ASX announcement dated 2 July 2025. FEED = Front End Engineering Design Completed Kachi Phase One DFS Addendum1 JORC Update Increased Total Resource To 11.1Mt LCE2 Completed Power Supply FEED4 Ore Reserve Statement Confirmed Lithium Grade Of 268 mg/L3 Continue To Engage With Offtake and Strategic Partners Kachi Project Phase One DFS Addendum 5 Transformational Project Improvements: Significantly Enhanced Economics & Operational Efficiencies1 US$ 1.16B Capex US$ 5,895/t Opex US$ 1.5B 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 IX technology2 Resource Excellence & De-risking Technology and Cost Optimization 1 Refer to ASX announcement dated 4 August 2025. 2Refer to Lilac announcement dated 28 October 2025. Lilac DLE Technology Update – Gen 5 Ion Exchange 6 Higher performance than any competing DLE technology featuring lower costs with first quartile economics Gen 3 Lilac IX (Original DFS) Gen 4 Lilac IX (DFS Addendum) Gen 5 Lilac IX Lithium Recovery 80% 90% >95% Media Productivity (kg LCE/day/m3) 550 800 1,500 IXM Cycle Life 2,200+ 4,000+ 10,000+  Lilac Solutions has developed Gen 5 lithium extraction technology that significantly outperforms conventional methods and addresses key industry challenges around cost, sustainability, and scalability  The Gen 5 technology delivers breakthrough performance improvements across the following critical areas:  Media productivity is 20x higher than alumina adsorbents  Lithium recovery rates increased from 90% (Gen 4) to 95%+  Extended IX media durability delivers up to 10,000 cycles before replacement  Impurity rejection of 99.9%+ (like Gen 4 IX)  Solids tolerance allows passage of 70x larger particles and avoids expensive ultrafiltration versus alumina adsorbents  10x lower water consumption compared to alumina adsorbents  Eluate quality: 7x higher lithium concentration and higher purity with 100x lower Li:B ratio than alumina adsorbents For more information, refer to Lilac announcement dated 28 October 2025 and its accompanying whitepaper. Potential incremental Kachi Capex / Opex savings with Gen 5 IX vs. Gen 4 IX Kachi Exploitation Environmental Impact Assessment  Lake continues to advance the Exploitation EIA approval process in close coordination with the Catamarca Environmental and Mining Ministries  Recent efforts have been focused on technical collaboration to align environmental baselines and mitigation strategies with provincial expectations  Lake is proactively supporting the Ministries by providing hydrological, ecological, and socio-environmental data to ensure that all environmental factors are properly evaluated, documented, and understood by regulatory authorities and local stakeholders  Timing of Exploitation EIA final approval is determined and controlled by the government of Catamarca with which Lake remains in close contact and continuous dialogue  While the government of Catamarca has committed to completing approval of the EIA by the end of 2025, Lake believes it is more likely approval will be received in 2026 Exploitation EIA Approval now expected in 2026 7 Kachi has undergone a rigorous permitting process and has been optimized through multiple studies Argentina Macro and Political Update 8 President Milei's reform agenda received strong voter endorsement in October midterm elections, securing his ability to continue fiscal discipline and austerity policies Events Summary Implications for Lake Macroeconomic Developments • 2.08% Monthly Inflation (Sept) • Continued Disinflation • Remarkable progress from the 200%+ annual inflation rate Milei inherited upon taking office Positive US Financial Support • US$40 Billion package • Pre-Election Timing • The White House arranged US$40 billion in support to help Argentina stabilize finances ahead of October 26 midterm elections • US continued financial support conditioned on Milei’s electoral performance Positive Midterm Elections • Decisive victory for Milei’s Party (41%) • Dramatic reversal from 13-point loss in September provincial elections • 68% Voter turnout (record low) • La Libertad Avanza: Won 64 new seats (total 111) • LLA becomes largest bloc in congress • Opposition parties can no longer override presidential vetoes • Positioned strongly for potential 2027 re-election • Main Opposition Party: Won 46 new seats (total of 99) Positive Financial Markets • Capital markets rally on Milei’s strong electoral performance • Triggered a bond rally and renewed investor optimism • Pressure to accelerate structural reforms to increase Positive Continued optimism and positive momentum for foreign direct investment in Argentina Lithium Price Volatility in 2025 9 Q3 2025 witnessed extraordinary volatility driven by a strong news cycle fueling supply uncertainty Lithium Carbonate (Li2CO3 EXW China, BG)1 Latest Price (5 Nov) $11,025 Change from Jul - Nov +$1,985/t (+22%) Lithium Hydroxide (LiOH EXW China, BG)1 Latest Price (5 Nov) $10,525 Change from Jul - Nov +$2,360/t (+29%) Spodumene (Li2O FOB Australia)1 Latest Price (5 Nov) $935 Change from Jul - Nov +$258/t (+38%) 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 0 10 20 5 15 $/kg LCE 9.0 8.4 9.6 11.5 13.5 19.0 13.5 11.3 Benchmark Minerals Q3 2025 Goldman Sachs Spot 8.6 Long Term Incentive Prices Goldman Sachs - $14/kg Benchmark Minerals - $19/kg (previously $21) Battery Grade Lithium Carbonate Price Forecasts Source: Benchmark Minerals Lithium Price Assessment, Benchmark Minerals Q3 2025 Lithium Forecast, Goldman Sachs Australian Lithium & Gold Coverage September 2025. Figures in USD, real prices. 1Li2CO3 EXW China (Battery Grade), LiOH EXW China (Battery Grade) and Li2O FOB Australia prices as of 05 November 2025. Note: The Company does not verify the accuracy of information derived from BMI or from other company presentations or reports. 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 0 (‘000 LCE) 2024 2025 2026 2027 2028 2029 2031 2032 2033 2034 2035 1,145 2,266 3,573 2030 +98% +58% 2025-2035 CAGR = 12% Source: BMI Q3 2025 Lithium Forecast. Note: The Company does not verify the accuracy of information derived from BMI or from other company presentations or reports. 10 However, significant demand growth is anticipated to induce market shortfall beginning in 2029 Lithium Market Demand Outlook Lithium demand expected to double between 2025 and 2035, driven by continued strong EV demand in Asia and Europe, Middle East BESS boom and additional policy actions Lithium Battery Demand (BMI Q3 2025 Forecast) Lake Resources Financial Highlights Q3 2025 11 Financial Position & Liquidity  Cash position of A$18.0M at 30 September 2025 with zero debt  Pro-forma quarter-end liquidity of ~A$20.5M with A$2.5M ATM proceeds received post-quarter Cost Management  Expected ~40% reduction in 2025 cash expenditures vs. 2024, exceeding projections  Actively monitoring cash balance and minimizing outgoings Capital Allocation  Funds allocated to finalize Exploitation EIA, evaluate power options and advance strategic alternatives  Recently completed business right-sizing improves liquidity outlook Outlook  Recent cost reductions and organizational right-sizing will further reduce costs in 2026 compared to 2025  Current liquidity expected to extend through 2026 Strong Balance Sheet and Disciplined Capital Management Lake Resources Strategic Priorities 12 o Obtain EIA Approval o Continue to optimize technical and commercial power solutions o Engage with Offtake and Strategic Partners o Work towards FID o Continue to optimize cost structure and extend financial runway Key areas of focus beyond 2025 Board of Directors Lake Resources Leadership Team 13 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 Leadership experience acquired across technical, financial and project execution Don Miller Chief Financial Officer Justin Olson Chief Legal Officer Stu Crow Non-Executive Chairman Robert Trzebski Non-Executive Director David Dickson Managing Director / CEO Barbara Cozzi Country Manager, Argentina Thank You Appendix Note: This table has been directly extracted from the JORC update announced on 3 June 2025. Lake Resources N.L. confirms that it Is not aware of any information that materially affects the information included in Lake's JORC update 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 0.078 806,442,000 806,442,000 0.210 169,352,820,000 169,000 901,000 B 4,385,500,000 0.088 385,740,000 385,740,248,000 0.229 88,334,517,000 88,000 470,000 C to 400 7,561,800,000 0.068 514,202,000 514,202,400,000 0.230 118,266,552,000 118,000 629,000 Fan West to 400 11,088,000,000 0.095 1,053,360,000 1,053,360,000,000 0.220 231,739,200,000 232,000 1,233,000 K24 – K25 below 400 7,744,200,000 0.093 720,211,000 720,210,600,000 0.250 180,132,593,000 180,000 958,000 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 0.08 309,640,000 309,640,000,000 0.185 57,283,400,000 57,000 305,000 B 1,569,100,000 0.079 123,959,000 123,958,900,000 0.191 23,676,150,000 24,000 126,000 C 5,446,470,000 0.074 404,338,000 404,338,308,000 0.218 88,218,532,000 88,000 469,000 Fan North 9,109,970,000 0.102 929,217,000 929,216,940,000 0.232 215,578,330,000 216,000 1,147,000 Fan South 2,767,500,000 0.093 257,378,000 257,377,500,000 0.239 61,513,223,000 62,000 327,000 Under volcano 6,718,700,000 0.074 500,187,000 500,187,059,000 0.193 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 0.076 278,924,000 278,924,453,000 0.181 50,485,326,000 50,000 269,000 B (South) 1,489,000,000 0.075 111,544,000 111,543,670,000 0.179 19,927,611,000 20,000 106,000 C (South) 4,434,492,000 0.067 297,111,000 297,110,964,000 0.182 54,076,275,000 54,000 288,000 A (North) 3,075,200,000 0.095 292,144,000 292,144,000,000 0.232 67,776,824,000 68,000 361,000 B (North) 4,294,400,000 0.102 438,029,000 438,028,800,000 0.241 105,431,342,000 105,000 561,000 C (North) 4,115,300,000 0.102 419,761,000 419,760,600,000 0.182 76,396,429,000 76,000 406,000 D (North) 5,073,100,000 0.102 517,456,000 517,456,200,000 0.182 94,177,028,000 94,000 501,000 K21 8,304,500,000 0.065 541,394,000 541,393,608,000 0.192 103,822,511,000 104,000 552,000 Under Measured ABC 400 – 600 7,453,100,000 0.067 501,818,000 501,817,968,000 0.242 121,529,774,000 122,000 647,000 Under Measured Fan 400 – 600 3,775,900,000 0.063 239,343,000 239,343,351,000 0.242 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) 16 Reserve Statement Note: This table has been directly extracted from the Updated Ore Reserve statement announced on ASX on 4 August 2025. 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 4,390 23,310 270 Proved 2 – 7 28,360 150,850 270 Probable 8 – 25 85,060 452,540 267 Total 1 – 25 117,810 626,760 Reserve Statement 17