Announcement PDF DELTA LITHIUM LIMITED ACN 107 244 039 Interim Financial Report for the Half-Year Ended 31 December 2025 DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 2 Table of Contents Corporate Directory ............................................................................................... 3 Director’s Report................................................................................................... 4 Auditors’ Independence Declaration ......................................................................... 24 Condensed Consolidated Statement of Profit or Loss and Other Comprehensive Income......... 25 Condensed Consolidated Statement of Financial Position .............................................. 26 Condensed Consolidated Statement of Changes in Equity............................................... 27 Condensed Consolidated Statement of Cash Flows ....................................................... 28 Directors’ Declaration .......................................................................................... 43 Independent Auditor’s Review Report ....................................................................... 44 DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 3 Corporate Directory Directors Nader El Sayed (Non-Executive Chairman) James Croser (Managing Director) Steve Kovac (Non-Executive Director) Joshua Thurlow (Non-Executive Director) Company Secretary Peter Gilford Registered Office and Principal Place of Business Level 2, 18 Richardson Street West Perth WA 6005 Tel: +61 8 6109 0104 Auditors KPMG 235 St George's Terrace Perth WA 6000 Australia Solicitors Thomson Geer Level 29, Central Park 152-158 St Georges Tce Perth WA 6000 Share Registry Computershare Investor Services Pty Ltd Level 17, 221 St Georges Terrace Perth WA 6000 Australian Telephone: 1300 850 505 International Telephone: +61 3 9415 4000 www.computershare.com.au Securities Exchange Listing Delta Lithium Limited shares are listed on the Australian Securities Exchange (ASX) ASX Code: DLI Website www.deltalithium.com.au Email Info@deltalithium.com.au DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 4 Director’s Report The Directors hereby present their Interim Financial Report on Delta Lithium Limited (ASX: DLI) (the ‘Company’ or ‘Delta’) and its subsidiaries for the half-year ended 31 December 2025. Directors Except as otherwise stated below, the following persons were Directors of Delta Lithium Limited during the whole of the half-year and up to the date of this Report as follows: Director Title Appointment Date Resignation Date Nader El Sayed1 Non-Executive Chairman 1 March 2021 - James Croser2 Managing Director 4 December 2020 - Tim Manners Non-Executive Director 1 March 2022 14 July 2025 Steve Kovac Non-Executive Director 2 August 2023 - Joshua Thurlow Non-Executive Director 12 September 2023 - 1 Appointed 1 March 2021 as Non-Executive Director, transitioned to Non-Executive Chairman on 25 November 2024 2 Appointed 13 September 2023 as Managing Director, after serving as Non-Executive Director from 4 December 2020. Company Secretary Mr Peter Gilford has acted as the Company Secretary during the entire period. Review of Operations During the half year ended 31 December 2025, Delta focussed on its two key projects in Western Australia. At Mt Ida, Delta successfully completed the demerger of its Mt Ida Gold Project into a new, standalone entity, named Ballard Mining Limited (Ballard). Ballard commenced trading on the ASX following Delta’s successful completion of the demerger and Initial Public Offering (IPO) of its Mt Ida Gold Project into this new, standalone entity. This strategic separation allows Delta to focus on its core lithium business while providing investors with direct exposure to a promising gold exploration company. At Yinnetharra, target generation was completed prior to the commencement of a drill campaign in late October 2025. Mt Ida Project The Mt Ida Gold Asset is located approximately 100km northwest of Menzies, and approximately 225km by road from Kalgoorlie in Western Australia’s prolific Eastern Goldfields mining region. Figure 1: Location of Delta Lithium’s Projects DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 5 Delta released an updated gold Mineral Resource Estimate (MRE) at the Mt Ida Project with a total Inferred and Indicated Mineral Resources of 10.3Mt @ 3.33 g/t Au for 1.1 Moz. This MRE update significantly increased the global gold inventory at the Mt Ida Project, demonstrating the presence of a large gold system, both immediately at Baldock and across the broader tenement package, and represented significant potential upside for future exploration at the Mt Ida Project. Given the scale of the Mt Ida Gold MRE and a potential future standalone mining operation, together with the funds required to continue advancing the Mt Ida Project towards execution, the Board and management of Delta made a strategic decision to demerge the Gold Asset into Ballard to drive superior value for Delta Shareholders and new Ballard Shareholders. The demerger and IPO have been an outstanding success with the Ballard share price appreciating more than 150% since listing. The demerger, which received very strong institutional and retail support, provided Delta shareholders with one Ballard share for every 11.25 Delta shares held, allowing shareholders to retain exposure to the value and upside of the Gold Asset. Ballard is driven by a high-calibre and experienced team with extensive experience in mineral exploration, project development, mining and financing in the resources industry. Tim Manners and Paul Brennan lead the executive team and carry their current knowledge of the asset over to Ballard to ensure a smooth transition of the Mt Ida Gold asset into the new standalone entity. Todd Hibberd subsequently joined as Exploration Manager. Simon Lill has been appointed Chairman and Stuart Mathews and James Croser are acting as Non-Executive Directors. The demerger was subsequently followed by a successful IPO and ASX listing on 14 July 2025, with an oversubscribed capital raising of $30 million. The capital has allowed Ballard to immediately commence a significant exploration, extensional and infill drilling program, including the drilling of regional growth targets and infill drilling at Baldock to support DFS workstreams and associated study work, with a view to reaching a final investment decision on building a gold mine at Mt Ida. Ongoing Exploration at Mt Ida Delta remains the tenement holder at Mt Ida and retains ownership of all minerals except for gold. Ballard Mining’s gold infill drill program has continued to return broad, high-grade mineralised lithium intervals. These intercepts demonstrate the excellent quality of the Mt Ida Lithium resource while also significantly increasing confidence in the model at minimal cost to Delta. These additional infill holes have been used to refine the existing MRE model and were incorporated into the MRE update which was completed in November 2025. Although the drillholes are oriented slightly obliquely due to the NW trending gold mineralisation, importantly the lithium grade in these holes is consistently higher than existing models. Delta is also able to benefit from the Ballard regional and infill drilling programs. Where pegmatites are intercepted during the gold drilling programs, Delta has been assaying the pegmatites for lithium. Best results intercepted during the quarter (which were drilled obliquely) are outlined below: Hole ID From To Length Li2O % Ta2O5 ppm Rb2O % DFS399 217 254 37 2.05 254 0.71 IDRD381 144 161 17 1.47 209 0.67 DFS066B 212 235 23 1.04 68 0.51 DFS406 251 285 34 1.86 171 0.65 DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 6 Hole ID From To Length Li2O % Ta2O5 ppm Rb2O % DFS392 189 210 21 2.07 188 0.73 DFS395 196 227 31 1.84 150 0.56 DFS396 206 236 30 1.88 145 0.54 DFS398 209 240 31 1.37 190 0.46 DFS402 232 259 27 1.56 206 0.52 DFS406 251 285 34 1.86 171 0.65 DFS680 221 247 26 1.31 250 0.47 DFS695 249 265.17 16.17 2.12 224 0.69 and 268.49 283.07 14.58 1.77 247 0.62 DFS702 309 333 24 2.00 113 0.58 Table 1: List of significant intercepts from infill drilling of the current Mt Ida Lithium MRE These new lithium results and a new pegmatite discovery are very encouraging for the Mt Ida Lithium Project and confirm the high potential of discovering further resources at depth and along strike of the existing Lithium MRE with future drilling. Furthermore, a thorough review of the Mt Ida database during the quarter has confirmed that the Mt Ida LCT pegmatite system also hosts high-grade rubidium, coincident and seemingly correlated with the existing high-grade lithium and tantalum mineralised zones. Very high-grade rubidium intercepts have been assayed, including intercepts of up to 5m @ 1.79% Rb2O in hole GCS0013. Table 2 below includes a selection of the many significant rubidium intercepts contained within the existing Mt Ida LCT pegmatites. The rubidium is completely contained within the existing MRE, potentially adding significant value as a co-product to the lithia production at the Mt Ida Project by reporting to the mica pre-float concentration part of the existing Mt Ida WOF flowsheet design. As a result, this new data was incorporated into a MRE update for Mt Ida (inclusive of rubidium), which Delta released in the December Quarter. Hole ID From To Length Li2O % Ta2O5 ppm Rb2O % IDRD162 275.96 318 42.04 1.77 382 0.71 IDRD077W2 385.1 443.03 57.93 1.37 187 0.55 IDRD077 398.31 436.58 38.27 1.20 146 0.56 IDRD178 353 390.93 37.93 1.26 204 0.54 DFS399 217 254 37 2.05 254 0.71 IDRD229W1 676 740.96 64.96 1.1 122 0.46 SSRD058 574.85 603.58 28.73 1.6 112 0.51 IDRD041 142.92 169 26.08 1 65 0.51 GCS0077 63 89 21 1 203 0.35 GCS0013 55 60 5 0.84 44 1.79 Table 2: Significant rubidium intercepts within the Mt Ida pegmatites Delta has conducted initial metallurgical testwork on the existing lepidolite concentrate which was completed in February. This is discussed in detail below. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 7 MRE Update Delta updated the independent Lithium Mineral Resource Estimate (MRE) which was prepared by Snowden Optiro on the Sister Sam, Timoni and Sparrow pegmatites at the Company’s wholly owned Mt Ida Lithium Project – see Table 3. The MRE update has been reported under the Reasonable Prospectus for Eventual Economic Extraction (RPEEE) criteria. This only includes material that falls within Open Pit shells & Mineable Shape Optimizer’s (MSO’s) – refer to ASX announcement dated 13 November 2025 ‘Mt Ida Lithium and Rubidium MRE’ for full details of the economic parameters used. The MRE update was as a result of previous drilling conducted by Delta and current gold infill drilling by Ballard Mining, which has resulted in the refining of wireframes, reducing volumes in certain areas and extending mineralisation in others but ultimately leading to an increase in overall confidence and tonnes. Mt Ida Lithium, Tantalum & Rubidium Resource November 2025 Li2O Ta2O5 Rb2O Area Resource category Cut-off grade (Li2O%) Tonnes (t) Grade (Li2O%) Tonnes (Li2O) Grade (Ta2O5 ppm) Grade (Rb2O%) Sparrow OP Measured 0.3 - - - - - Indicated 170,000 0.95 1,600 287 0.42 Inferred - - - - - Total Resource 170,000 0.95 1,600 287 0.42 UG Measured 0.5 - - - - - Indicated 1,100,000 1.05 11,000 176 0.43 Inferred 1,100,000 0.93 10,000 141 0.40 Total Resource 2,200,000 0.99 21,000 159 0.42 All Measured - - - - - Indicated 1,300,000 1.03 13,000 191 0.43 Inferred 1,100,000 0.93 10,000 141 0.40 Total Resource 2,400,000 0.99 31,000 168 0.42 Sister Sam OP Measured 0.3 270,000 1.30 3,500 268 0.44 Indicated 3,200,000 1.45 46,000 257 0.48 Inferred 82,000 1.07 880 176 0.39 Total Resource 3,500,000 1.43 51,000 256 0.47 UG Measured 0.5 - - - - - Indicated 2,000,000 1.38 27,000 166 0.45 Inferred 4,900,000 1.12 55,000 119 0.38 Total Resource 6,900,000 1.19 82,000 133 0.40 All Measured 270,000 1.30 3,500 268 0.44 Indicated 5,200,000 1.42 73,000 222 0.47 Inferred 5,000,000 1.12 55,000 120 0.38 Total Resource 10,400,000 1.27 130,000 175 0.42 Timoni OP Measured 0.3 220,000 1.09 2,400 240 0.33 Indicated 290,000 1.18 3,400 216 0.41 Inferred 27,000 0.75 210 185 0.25 Total Resource 540,000 1.12 6,000 224 0.37 UG Measured 0.5 - - - - - Indicated 470,000 1.35 6,400 191 0.33 Inferred 1,000,000 0.99 10,000 137 0.38 Total Resource 1,500,000 1.11 16,000 154 0.37 All Measured 220,000 1.09 2,400 240 0.33 Indicated 760,000 1.29 9,900 200 0.36 Inferred 1,000,000 0.98 10,000 138 0.38 Total Resource 2,000,000 1.11 22,000 173 0.37 Total Measured 490,000 1.20 5,900 256 0.39 Total Indicated 7,200,000 1.34 96,000 215 0.45 Total Inferred 7,100,000 1.07 76,000 126 0.38 Total 14,800,000 1.21 177,000 170 0.42 Notes: Tonnages and grades have been rounded to reflect the relative uncertainty of the estimate. Inconsistencies in the totals are due to rounding. Table 3: Mt Ida lithium, tantalum and rubidium JORC mineral resource estimate. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 8 The incorporation of this additional drilling when combined with advanced metallurgy, environmental and geotechnical works has allowed for the delineation of a portion of measured resources – see figure 2. This is a great benefit to the Project and speaks to the confidence of the shallow material which would be the initial focus in a mining scenario. Figure 2: View facing Southeast showing Mt Ida Lithium Resource Classification & unconstrained rubidium oxide block model The primary aim of the update to the MRE was to determine the spatial distribution of contained rubidium, which occurs entirely within the existing lithium wireframes, while updating the classification based upon the metallurgical and geotechnical feasibility work that has been completed to date. This resulting MRE highlights Mt Ida as a globally significant potential source of rubidium material as well as the world’s current highest-grade resource according to public data – see Figure 3. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 9 Figure 3: Bubble chart illustrating Mt Ida’s Rb Mineral Resource compared with publicly released global Rb Mineral Resources (Inferred, Indicated and Measured reported according to JORC (2012) and NI-43 101). Metallurgical Studies Extensive metallurgical testwork has been completed on the Mt Ida Lithium Project to date. Feasibility testwork has confirmed that the Mt Ida deposit can produce tantalite, mica & spodumene concentrates via a process flowsheet including spirals and whole ‘ore’ flotation (WOF). Figure 4 illustrates the Mt Ida flowsheet and staged separation of spodumene, mica and tantalite concentrates. Existing WOF flowsheet testwork confirmed that rubidium is readily extracted as a byproduct within the mica pre-float stage and reports to the mica concentrate. The amenability of the existing flowsheet to recover >90% of rubidium in the ore feed and up to 50-55% of the total contained Li2O during this mica pre-float process, resulting in production of a high-grade lithium/rubidium concentrate with an overall average grade of 3.01% Li2O and 1.8% Rb2O based on flotation work to date. These results are extremely encouraging and present with significant concentrations of high value critical minerals. As a result, the Company commissioned Strategic Metallurgy to conduct Phase 1 downstream processing optimisation and economic studies to outline a pathway to potential commercial production of lithium, rubidium and potassium products from this mica concentrate. These works are underway and have already returned high recoveries from leaching stages and alum separation, thus confirming the amenability of the concentrate to produce high purity lithium carbonate (Li2CO3) and rubidium carbonate (Rb2CO3) as well as potassium sulphate as a byproduct. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 10 Figure 4: Block Flow diagram showing Mt Ida Lithium process flowsheet with average Li & Rb concentrate grades based on testwork to date Downstream processing work is progressing with Strategic Metallurgy. Work to date have been successful with the generation of a saleable lithium carbonate (Li2CO3) product with purity of >99%. This workstream may add significant value to the Mt Ida project as it confirms the potential for Delta to vertically integrate treatment of the mica concentrate produced from the current Mt Ida Lithium flowsheet. Development of the specific hydromet flowsheet is advancing in line with this testwork, seeking also to produce a rubidium product and potassium sulphate biproduct all from the same mica concentrate. These important workflows demonstrate that Delta’s Mt Ida project has the potential to be a near term producer of critical minerals. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 11 Figure 5: Mt Ida lithium carbonate produced from mica concentrate Rubidium Market The global rubidium market is relatively small but strategically significant segment within the specialty metals sector, underpinned by its unique properties and expanding high-technology applications. Traditionally used in specialty glass, electronics and chemical research, rubidium demand is increasingly driven by the following industries; • Military and Defence Systems • Quantum Technologies • Biomedical Applications • Oil & Gas Drilling Applications • Next-generation Sensors (Atomic Clocks) Emerging uses in quantum navigation, medical imaging, and specialty formate fluids are broadening the market’s commercial footprint beyond its historical niche. Rubidium is a heavier alkali metal with a free outer valance electron, making it particularly valuable in quantum mechanics research where this hydrogen-like characteristic proves ideal for precision modelling in quantum mechanics and atomic physics, particularly where solutions to Schrödinger’s calculation are necessary. The scarcity of high-purity supply and rising demand from defence, aerospace and energy technology sectors point to a tightening geostrategic market and sustained upward demand trajectory through the decade which is expected to reach USD $8 billion by 2033. Its recent designation as a critical mineral in key markets such as the United States and Japan, coupled with the global push to secure non-Chinese supply chains, positions Delta favourably in Western markets. At today’s price of approximately USD$1,067 per kilogram for high-purity rubidium carbonate, the potential value contribution from rubidium represents a significant strategic upside for the Mt Ida Project. Yinnetharra Lithium Project The Yinnetharra Project, in the Gascoyne region of Western Australia, targets Lithium mineralisation, with Delta now owning more than 2,300 km² of tenure outright and as Farm-in Joint Ventures. A MRE update for Yinnetharra was released in March 2025 of 21.9 Mt @ 1% Li2O and 75ppm Ta2O5 and an additional 17.5Mt @ 136ppm Ta2O5. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 12 Figure 6: Yinnetharra tenure showing geology and regional targets Lithium resources at Malinda are present in three main pegmatites: the M1, M36 and M47, with smaller resources at M42, M20, M67 and M69. Mineralisation extends from surface to a depth of greater than 300m. The recent MRE update has now classified 74% of the Resource as indicated underpinning future studies and project development pathways. The Malinda Project is well advanced with DFS-level metallurgy and geotechnical studies completed over the M1 pegmatite in particular, and the mining lease application has been submitted. The investigation of various mining scenarios are well advanced, while the regional tenure presents upside for additional resource tonnes. During the half year ended 31 December 2025, the Company mobilised a reverse circulation (RC) rig up to the Yinnetharra Project to test up to six (6) high priority regional targets adjacent to Jameson (MRE 0.8Mt @ 1.66% Li2O) and extending south then east toward Malinda along the 20km of prospective Leake Springs metasediment unit. Drilling was paused for a two-week period over Christmas before recommencing in early January to continue the program. The RC program is systematically testing the high priority prospects which have been developed throughout 2025 via extensive “boots on the ground” exploration across existing and newly acquired tenure. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 13 The LCT rights agreement with Dalaroo Metals at the Lyons River Project was terminated during the quarter for no consideration. Multiple phases of exploration programs were completed over the tenure with no meaningful LCT anomalies being delineated. Jameson Jameson represents a high priority target in relation to exploration and resource growth. The current Jameson MRE of 0.8Mt @ 1.66% Li2O is mineralised from surface with an open plunge component. The area is structurally complex with several deformational and folding events. Structural analysis undertaken has improved understanding of the paragenesis and subsequent mineralisation which is hosted in these structural traps. Figure 7: Plan view of Jameson with planned drilling The detailed structural review identified the F2 fold hinges and later stage faults as priority targets for future exploration. The current surface data correlates with this thesis, suggesting lithium-enriched fluids have mobilised through these potential structural trap zones – see Figure 7. The majority of this Phase 1 drilling program is targeting these fold hinges, limbs and faults which possess elevated discrete surface anomalies. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 14 Jameson drilling of 6,072m targeted both Jameson South for the first time and follow-up drilling at Jameson North, proximal to the J1 resource. Drilling has been completed across Jameson South, intercepting the target structures in the fold limbs and hinges. Significant pegmatite intercepts were encountered in excess of 60m thick in a zone with anomalous surface geochemistry, however these pegmatites did not host any economic lithium within the pegmatites. The Jameson North program enjoyed some success, increasing confidence in the J1 resource. Best intercepts are summarised below in table 4. Hole ID From To Length Li2O % Ta2O5 ppm Fe2O3 % JREX065 101 114 13 1.96 46 1.03 JREX067 90 92 2 1.87 64 1.1 Table 4: Significant intercepts at Yinnetharra. Step out drilling at Jameson intersected substantial pegmatites but did not host significant lithium. A number of targets could not be tested as a result of difficult drilling conditions and substantial deviation caused by strong regional fabric. As a result, some holes were abandoned and will serve as precollars for diamond tails to be drilled later this year, when Delta undertakes diamond drilling under an approved Exploration Incentive Scheme (EIS) drill program. Yinnetharra Lithium & Tantalum Resource March 2025 Area Resource category Cut-off grade (Li2O%) Tonnes (Mt) Li2O% Li2O (Kt) Ta2O5 ppm Ta2O5 (Kt) M1 Measured 0.5 - - - - - Indicated 9.9 0.9 92 51 0.5 Inferred 2.9 0.8 24 52 0.2 Total Resource 12.7 0.9 117 51 0.6 M2 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.2 1.2 2 29 0.0 Total Resource 0.2 1.2 2 29 0.0 M3 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.2 1.0 1 24 0.0 Total Resource 0.2 1.0 1 24 0.0 M4 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.1 0.8 0 20 0.0 Total Resource 0.1 0.8 0 20 0.0 M20 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.0 0.6 0 54 0.0 DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 15 Yinnetharra Lithium & Tantalum Resource March 2025 Total Resource 0.0 0.6 0 54 0.0 M36 Measured 0.5 - - - - - Indicated 4.7 1.1 51 106 0.5 Inferred 0.7 0.7 5 153 0.1 Total Resource 5.4 1.0 56 112 0.6 M42 Measured 0.5 - - - - - Indicated 0.2 0.6 1 131 0.0 Inferred 0.2 0.7 1 107 0.0 Total Resource 0.4 0.7 2 122 0.0 M47 Measured 0.5 - - - - - Indicated 1.4 0.9 13 154 0.2 Inferred 0.1 0.8 1 185 0.0 Total Resource 1.5 0.9 14 157 0.2 M67 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.3 0.7 2 62 0.0 Total Resource 0.3 0.7 2 62 0.0 M69 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.4 0.8 3 85 0.0 Total Resource 0.4 0.8 3 85 0.0 J1 Measured 0.5 - - - - - Indicated - - - - - Inferred 0.8 1.7 13 44 0.0 Total Resource 0.8 1.7 13 44 0.0 Total Measured - - - - - Total Indicated 16.1 1.0 158 77 1.2 Total Inferred 5.8 0.9 54 69 0.4 Total 21.9 1.0 212 75 1.6 Table 5: Yinnetharra lithium & tantalum JORC Resource Caribou prospect drilling comprised of 1,387m. This drilling targeted notable lithium anomalies at depth intercepted in the previous program. A sequence of pegmatites were intercepted within the prospective host stratigraphy, however they were not the correct composition to host lithium bearing minerals, being predominantly comprised of albite, quartz and feldspars. Drilling has continued with Mason’s North Talisker, and Yamazaki having been completed before moving on to East Calypso, Perseverance as well as targeting Malinda extensions. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 16 Yinnetharra Regional Exploration As part of the regional campaign, exploration work has continued across the >2,300km2 Project and Fam-In tenure. The team have been conducting systematic surface exploration across prospective areas and generated over 25 prospects (see Figure 6, above) with many areas not yet explored. This greenfields geological work comprised of detailed mapping, rock chip and auger sampling as well as a high-resolution drone magnetic survey. The drone magnetics survey was completed in September and flown at 25m spacings and 20m vertical height to produce a high-resolution map which will aid with structural interpretations and target generation. The culmination of these greenfields geological workstreams has resulted in six priority drill targets that is be the focus of the Phase 1 drill program, all of which are hosted in the Leake Springs Metamorphics unit, the preferential host of Jameson and Malinda deposits – see Figure 8. Figure 8: Plan View to Yinnetharra MRE’s and drill targets for current exploration programs DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 17 Mason’s Prospect is a 500m long target characterised by enriched lithium, caesium, tantalum (LCT) pegmatites located 3km along strike from Jamesons within the same host rocks. The first phase of drilling will target these northwest trending pegmatites at depth and along the defined strike. Yamazaki Prospect represents a compelling exploration target sitting just 8km from Jameson and 12km from Malinda along the margin of the continuous Leake Springs unit. It hosts a 4km long lithium surface geochemical anomaly that has never been drilled – see Figure 9. Figure 9: Plan view of Yamazaki prospect showing surface anomalism East Calypso Prospect is a highly ranked target beyond Jameson. This prospect sits immediately adjacent to the Thirty-Three Suites Granite within the Leake Springs which is a mirror image of the geological setting at the Malinda deposit. Contrary to the general LCT models, the 21.1Mt @ 1% Li2O at Malinda is located only a few hundred metres away from the apparent source granite which is identical to East Calypso to the south. East Calypso is also strengthened by the same host rocks and consistently high lithium / caesium levels in the surface dataset, while caesium is generally very immobile and does not travel far from the source – see Figures 10 and 11. These E-W trending pegmatites will be tested thoroughly during this current program. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 18 Figure 10: Plan view of East Calypso with surface data showing lithium anomalism Figure 11: Plan view of East Calypso with surface data showing caesium anomalism DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 19 Approvals and Project Development A Mining Lease application M09/185 has been submitted for the Malinda Mining Area (Figure 12) and Native Title negotiations are ongoing. Environmental permitting has advanced with all flora and fauna field surveys now completed, and technical reports being finalised. The approvals and permitting strategy remain on track, with the submissions to regulators planned for completion in quarter 2 of-CY2026. Figure 12: Plan View to submitted Mining Lease application. Delta is advancing the water exploration program at Yinnetharra via passive seismic surveying, which has been completed across the target terrain and successfully mapped out the paleochannel bedrock in these locations – see Figure 13. Vertical probe holes will be completed during the upcoming drill program to confirm the location of the modelled thalweg, that being the deepest and most productive part of a paleochannel system. This confirmatory drilling will allow for the precise planning of water production bore drilling and construction to follow. The Water Development workstream serves to identify a reliable subsurface water source supporting the Projects’ mining and processing requirements for feasibility, planning and approvals purposes. Water is a crucial aspect of mine feasibility and water investigations are ongoing and in parallel with current exploration activities. DELTA LITHIUM LIMITED Interim Financial Report 31 December 2025 20 Figure 13: Passive seismic survey results mapping paleochannel Corporate Fundraising During the half year ended 31 December 2025, 690,000 performance rights were converted in ordinary share capital, 2,683,330 performance rights issued and 3,672,500 performance rights forfeited. 2025 Annual General Meeting The 2025 AGM was held on 27 November 2025. All resolutions in the Notice of AGM were passed on a poll. Board and Manag