Announcement PDF ASX ANNOUNCEMENT 30 September 2026 Yinnetharra and Mt Ida Project Updates Highlights: Yinnetharra • Drill program to commence on 6 new reconnaissance targets generated from regional surface sampling and detailed mapping • Two strong gold in soil anomalies with corresponding high grade rock chip and drill hole samples provide complementary gold targets within Yinnetharra tenure. o High-grade gold rockchip 6.83 g/t in sample M444 o 2m @ 5.69 g/t gold from 96m in MSRC004 (previously announced) • Drill testing planned during Q4 2026 pending approvals. Mt Ida • Metallurgical testwork on a 1 tonne composite of Mt Ida core is underway to confirm the proposed tantalum flowsheet and to produce additional mica, spodumene and tantalum concentrate for refining testwork. • Drilling continues to provide mineralised lithium, tantalum and rubidium intercepts contributing to increased resource confidence and project development. Best drill intercepts include1 : o 8.0m @ 1.2% Li2O, 58ppm Ta2O5 and 0.31% Rb2O from 615m - TNEX011 o 9.95m @ 1.4% Li2O, 117ppm Ta2O5 and 0.45% Rb2O from 648.05m - TNEX011 Corporate • As of 29 September 2026, Delta’s cash balance was $48.8M and additional ASX-listed investments based on closing prices on 29 September 2026 of $125M2 . Delta Lithium Limited (ASX: DLI) (“Delta” or “the Company”) is pleased to provide a company update across its 100% owned Yinnetharra and Mt Ida Lithium Projects, where exploration and development activities continue in line with the broader company strategy. Yinnetharra The Yinnetharra Lithium project is located in the Gascoyne region of Western Australia. Delta Lithium has 2,325km2 of 100% owned project tenure. A mineral resource estimate (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. Regional exploration has continued across the Project with the team conducting systematic surface exploration and mapping across prospective areas with a current focus on 6 prospects, prior to planned drill 1 Intercepts are from Mt Ida gold drilling by Ballard Mining (BM1) and do not represent true widths 2 Shares in listed investments include 156M BM1 (subject to escrow), 5M MEX (formerly UVA) and 16.1M JAV 2 ASX ANNOUNCEMENT 30 September 2026 testing later in CY2026. Lithium remains the primary focus, however, two of the prospects are following up on significant gold in soil anomalies identified as part of the broader geochemical exploration conducted to date. Initial anomalism identified from regional gridded sampling has been followed up with close spaced targeted soil geochemistry to refine and identify localised drill targets. The Company has now designed reconnaissance drilling programs to test these targets during Q4 this year and pending receipt of approvals. Commenting on ongoing activities, Delta Lithium Managing Director, James Croser said; “The regional lithium and gold anomalies at Yinnetharra present compelling targets for our next program of reconnaissance drilling, after having been identified through detailed mapping and geochemical sampling across the broader tenement package. The gold anomalies in particular warrant further investigation due to both containing high grade gold samples corresponding directly with the underlying soil geochemistry. At Mt Ida, the ongoing metallurgical test work continues to increase confidence in and confirmation of the chosen flow sheet with respect to maximising tantalum recoveries. This work, as it progresses through the flowsheet with the 1 tonne sample, will also generate substantial mica and spodumene concentrate to be used in downstream refining test work, including the production of samples of end use rubidium chemicals for review by potential industrial offtake partners. In addition to our lithium assets, Delta remains very well-funded, with significant strategic investments continuing to deliver solid gains.” Figure 1: Yinnetharra Project and Tenure with current active prospects 3 ASX ANNOUNCEMENT 30 September 2026 Tomahawk LCT – E09/2388 Detailed mapping in conjunction with historic rock chip sampling has identified two sub parallel outcropping pegmatite dykes in an area with little exposure and significant cover with recent sediment. The dykes fall within proximity to the Leake Spring metamorphic unit and to the south-west in similar geological terrain to the Malinda deposit. Rock chip samples from the dykes have returned elevated lithium grades with corresponding low K/Rb ratio’s indicating the evolved nature of the pegmatite. Four drill holes have been planned to test fertility of the outcropping pegmatite at depth and strike extent beneath cover. Figure 2: Tomahawk Lithium target 4 ASX ANNOUNCEMENT 30 September 2026 Bains LCT – E09/3024 This tenement was granted earlier in 2026 and is one of the southern most tenements in the group. Lithology consists of varying types of granite and gneiss broadly aligned with a major structural shear zone trending northwest – southeast through the tenement. Multiple coarse grained pegmatite dykes exist in swarms across the tenure with some in an oblique orientation to the shear and others more perpendicular. Mapping conducted around an historic rock chip containing 453 ppm Li identified an outcropping crosscutting pegmatite in excess of 200m in length, proximal to a trend of mafic (amphibolite) dykes broadly aligned with the regional shear zone. The pegmatite has been described as an albite, quartz, K-feldspar type with limited muscovite content suggesting the rock chipped lithium grade is most likely attributable to a mineral other than mica. Four drillholes have been designed to intersect the pegmatite at regular intervals along its outcropping length. Figure 3: Bains Lithium target 5 ASX ANNOUNCEMENT 30 September 2026 Laphroaig LCT - E09/2302 Located 50km southwest of Malinda and along strike to the west of Bains with similar lithology, abundant swarms of pegmatite dykes have intruded the granitoid country rock in two major orientations. A large part of the tenement was mapped and sampled by the previous tenement holder with targeted rock chips and gridded soil sampling programs returning a number of lithium anomalies. Samples from a section of one of the centrally located pegmatites returned elevated lithium results with corresponding low K/Rb ratio’s indicating a more highly evolved zone within the pegmatite. Four drill holes have been planned to test the fertility of these pegmatites beneath the weathered outcrop. Figure 4: Laphroaig Lithium target Jameson LCT – E90/2621 The Jameson prospect was drilled during 2024 resulting in a defined resource of 0.8Mt @ 1.66% Li20 (ASX announcement 31/03/2025) Some of the outcropping pegmatite was not adequately tested in the previous drilling program along with a mineralised intersection at depth not forming part of the resource and requiring follow up. Two drillholes have been designed test and further define these targets. 6 ASX ANNOUNCEMENT 30 September 2026 Mason’s Gold and LCT Following a recent high grade intercept of 2m @ 5.69 g/t Au in drillhole MSRC004, (announced 16/06/2026) a preliminary soil geochemical program was conducted to identify any broad soil anomalies in the area. This program returned a promising broad gold in soil anomaly coincident with the location of the intercept and was immediately followed up with close spaced surface sampling to further refine the anomaly. Two discrete sub parallel gold trends have been identified with one directly related to the previous drill hole intercept at depth. A program of 22 drill holes has been planned to target gold mineralisation beneath the soil anomaly and along strike of the previous drill hole. The drilling is also intended to test a series of sub-parallel pegmatite occurrences in the same area with elevated lithium in soil results. Figure 5: Masons Gold anomaly 7 ASX ANNOUNCEMENT 30 September 2026 Cathedral Gold The Cathedral prospect is due east and adjacent to the Malinda lithium deposit. A previous wide spaced geochemical program has returned a strong gold in soil anomaly and has since been followed up with close spaced sampling (results pending) to refine the target. Rock chip sampling in the same area returned a peak result of 6.83 g/t Au – M444 from a gossanous schistose sample with several surrounding rock chips returning anomalous ppb gold grade coincident with the broad gold in soil anomaly (full results in Appendix 2A). Three drill holes have been planned across the peak of the broad anomaly which may be subject to adjustment following receipt of results from the recent soil program and remaining rock chips. Figure 6: Cathedral Gold anomaly Mt Ida Lithium Update Mt Ida is located approximately 240km north of Kalgoorlie in Western Australia. The Project area resides on granted mining leases and is fully permitted for commencement of open pit and underground mining at the main Sister Sam and Timoni lithium resources. Mt Ida Lithium updated Mineral Resource Estimate (MRE) currently: 14.8 Mt @ 1.21% Li2O, 170 ppm Ta2O5 and 0.42% Rb2O 8 ASX ANNOUNCEMENT 30 September 2026 Ballard Mining’s gold infill drill program has continued to return high-grade mineralised lithium intervals. These intercepts demonstrate the excellent quality and continuity of the Mt Ida Lithium resource, while also increasing confidence in the block model. Figure 7: Mt Ida Project and Tenure with lithium, tantalum and rubidium resources These additional infill holes have been used to refine the existing MRE model interpretation and will be incorporated into the next resource update. Importantly, this drilling also provides additional diamond core which Delta can utilise for future metallurgical testing. Some of the recent intervals have intercepted deep pegmatite extensions which have returned, • 8.0m @ 1.2% Li2O, 58ppm Ta2O5 and 0.31% Rb2O from 615m, and • 9.95m @ 1.4 Li2O, 117ppm Ta2O5 and 0.45% Rb2O from 648.05m in TNEX011. These mineralised intervals intersect the inferred depth extension of the hanging wall and footwall lodes of the current model. This additional data confirms the mineralisation and will contribute to converting the inferred category to indicated providing increased confidence in the resource model (refer Appendix 1A and 1B for recently received drill hole results). Regarding the current metallurgy testwork program underway at the Nagrom laboratory (Perth), results will be announced at the completion thereof. 9 ASX ANNOUNCEMENT 30 September 2026 Next Steps Yinnetharra • Finalise regional drilling program planning • Complete required heritage surveys and POW works • Target drilling Q4 2026 (subject to rig availability and approvals) Mount Ida • Incorporate recent drill results into the models • Continue metallurgy flowsheet and downstream testwork • Finalise the Mt Ida Scoping Study Release authorised by the Managing Director on behalf of the Board of Delta Lithium Limited. For further information, please contact: Delta Lithium James Croser, Managing Director Peter Gilford, CFO and Company Secretary +61 8 6109 0104 info@deltalithium.com.au About Delta Lithium Delta Lithium (ASX: DLI) is an exploration and development company focused on bringing high-quality, lithium-bearing pegmatite deposits, located in Western Australia, into production. With current global JORC compliant resources of 36.5Mt@1.0% Li2O, strong balance sheet and an experienced team driving the exploration and development workstreams, Delta Lithium is rapidly advancing its Projects. The Mt Ida Project has coincident gold and lithium orebodies and holds a critical advantage over other developers with existing Mining Leases and an approved Mining Proposal. Delta Lithium is pursuing a development pathway to unlock maximum value for shareholders. Delta has recently spun out its gold assets into Ballard mining on 14th July 2025 and retains a 41% equity stake in this company. Delta Lithium also holds the highly prospective Yinnetharra Lithium Project, with exciting lithium discoveries at the Malinda and Jamesons prospects. The Company is currently conducting exploration activities at Yinnetharra with fieldwork continuing in 2026 across our large tenure package, testing additional targets and aiming to build on the current JORC Resources. Competent Person's Statement Information in this Announcement that relates to exploration results is based upon work undertaken by Mr. Olaf Frederickson, a Competent Person who is a Member of the Australasian Institute of Geoscientists (AIG). Mr. Frederickson has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a ‘Competent Person’ as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ (JORC Code). Mr. Frederickson is an employee of Delta Lithium Limited and consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears. Refer to www.deltalithium.com.au for past ASX announcements. Past Exploration results and Mineral Resource Estimates reported in this announcement have been previously prepared and disclosed by Delta Lithium in accordance with JORC 2012. The Company confirms that it is not aware of any new information or data that materially affects the information included in these market announcements. The Company confirms that the form and content in which the Competent Person's findings are presented here have not been materially modified from the original market announcement, and all material assumptions and technical parameters underpinning Mineral Resource Estimates in the relevant market announcement continue to apply and have not materially changed. Refer to www.deltalithium.com.au for details on past exploration results and Mineral Resource Estimates. Disclaimer This release may include forward-looking and aspirational statements. These statements are based on Delta Lithium management’s expectations and beliefs concerning future events as of the time of the release of this announcement. Forward-looking and aspirational statements are necessarily subject to risks, uncertainties and other factors, some of which are outside the control of Delta Lithium, which could cause actual results to differ materially from such statements. Delta Lithium makes no undertaking to subsequently update or revise the forward looking or aspirational statements made in this release to reflect events or circumstances after the date of this release, except as required by applicable laws and the ASX Listing Refer to www.deltalithium.com.au for past ASX announcements. 10 ASX ANNOUNCEMENT 30 September 2026 Appendix 1 A – Lithium Assay Results from recent Mt Ida Drilling Information Appendix 1B - Recent collar information Mt Ida from gold drilling that contained economic lithium HOLEID EAST NORTH RL AZIMUTH DIP BCV019 252615.2 6778690 473.057 52.34 -60.33 BDG031 253006 6778005 476.657 56.03 -59.19 NEB076 251784.7 6780503 460.586 52.59 -60.27 NEB077 251747.4 6780478 460.911 55.79 -60.57 NEB080 251676 6780488 461.181 54.24 -60.45 TNEX011 252527.6 6778612 473.925 62.48 -57.39 HoleID From To Length Li2O% Ta2O5 ppm Fe2O3 % Rb2Oppm BCV019 583.9 588.88 4.98 0.39 74 3.17 2369 BCV019 604.44 608.05 3.61 0.35 70 1.95 4737 BDG031 675.1 679.55 4.45 0.6 265 0.36 4548 NEB076 186 190 4 0.62 126 2.28 3684 NEB077 227 233 6 0.41 95 3.01 4237 NEB080 221 231 10 0.53 118 3.39 1589 NEB080 269 274 5 1.01 286 1.37 4753 TNEX011 615 623 8 1.2 58 0.43 3091 TNEX011 648.05 658 9.95 1.4 117 1.30 4534 11 ASX ANNOUNCEMENT 30 September 2026 Appendix 2A – Yinnetharra Rock Chip Assay results SAMPLEID EAST NORTH Au_ppm Ag_ppm Cu_ppm W_ppm DESCRIPTION M420 428,119 7,288,932 0.04 0.47 3070 4160 Peg/quartz vein in amphibolite, Oxidised + tourmaline, albite. M435 428,696 7,289,222 0.005 0.018 14.75 0.874 Sheared quartz vein in schist. Chlorite and muscovite within. M436 428,795 7,289,256 0.01 0.018 163 0.586 Sheared quartz vein in schist: hematite: muscovite: and chlorite M437 428,832 7,289,162 0.02 0.054 292 0.221 Silicified zone in schist and quartz vein; abundant chlorite: biotite: and minor Fe-oxides. M438 429,017 7,289,164 0.005 0.003 7.59 0.298 Sheared/foliated quartz vein in garnet-schist. Recrystallised quartz: hematite and muscovite and chlorite. M439 428,835 7,288,865 0.005 0.008 24.8 1.325 Sheared quartz vein in schist. Recrystallised texture. Mod chlorite-biotite M440 428,636 7,288,867 0.005 0.007 41.6 0.513 Bucky quartz vein. Minor chlorite: coarse white quartz. M441 428,635 7,288,935 0.07 0.012 20.2 0.248 Sheared/foliated quartz vein in schist. Chlorite-biotite on the fracture/shear planes. M444 428,432 7,289,081 6.83 0.6 413 3.23 Goethite altered schist, schist foliation remains. Proximal to elevated Au soil. M445 428,518 7,289,098 0.02 0.525 127 43.6 Colluvial cover area, abundant pseudo-gossanous alluvials, goethite-limonite. Possible ex- schist. M446 428,715 7,289,257 0.05 0.095 1305 3.3 Schist sample, chlorite-sericite schist, some Fe-ox bands and garnet. Proximal to Au anomalous soils. M447 428,736 7,289,255 <0.01 0.008 25.5 2.69 Schist, outcrop appears brown and Fe-rich. On fresh surfaces the schsit is sericite-chlorite dom. Proximal to Au soils. M448 428,767 7,289,274 0.05 0.028 79 3.09 Fine grained chlorite biotite schist with quartz veinlets and minor garnet. Minor gossanous float. 12 ASX ANNOUNCEMENT 30 September 2026 Appendix 3 A - Lithium MRE Group summary table Delta Lithium Group Mineral Resource estimate (Li₂O only) Resource category Cut-off grade (Li₂O%) Li₂O Ta₂O₅ Rb2O Tonnes (Mt) Grade (% Li₂O) Li₂O (Kt) Grade (Ta₂O₅ ppm) Grade (Rb2O %) Yinnetharra Measured 0.5 - - - - - Indicated 16.1 1.0 158 77 - Inferred 5.8 0.9 54 69 - Total Resource 21.9 1.0 212 75 - Mt Ida Measured 0.3 - 0.5 0.5 1.1 5.9 256 0.39 Indicated 7.2 1.3 96 215 0.45 Inferred 7.1 1.1 83 126 0.38 Total Resource 14.8 1.2 190 173 0.42 Total Measured 0.5 1.1 5.5 256 0.39 Total Indicated 23.3 1.1 254 120 - Total Inferred 12.9 1.0 137 100 - Total 36.7 1.1 402 115 - 13 ASX ANNOUNCEMENT 30 September 2026 Appendix 2 B - Yinnetharra Tantalum Only MRE Yinnetharra Tantalum Only Resource March 2025 Area Resource category Cut-off grade (Ta2O5ppm) Tonnes (Mt) Li2O% Li2O (Kt) Ta2O5 ppm Ta2O5 (Kt) MT1 Measured 65 - - - - - Indicated 3.7 0.1 3 82 0.3 Inferred 0.6 0.0 0 94 0.1 Total Resource 4.3 0.1 4 84 0.4 MT20 Measured 65 - - - - - Indicated - - - - - Inferred 0.2 0.1 0 115 0.0 Total Resource 0.2 0.1 0 115 0.0 MT36 Measured 65 - - - - - Indicated 4.3 0.1 5 123 0.5 Inferred 0.6 0.1 1 106 0.1 Total Resource 4.9 0.1 5 121 0.6 MT42 Measured 65 - - - - - Indicated 0.3 0.2 1 175 0.1 Inferred 2.5 0.1 2 208 0.5 Total Resource 2.8 0.1 3 204 0.6 MT47 Measured 65 - - - - - Indicated 2.1 0.1 3 186 0.4 Inferred 0.5 0.1 0 257 0.1 Total Resource 2.5 0.1 3 199 0.5 MT67 Measured 65 - - - - - Indicated - - - - - Inferred 0.6 0.2 1 113 0.1 Total Resource 0.6 0.2 1 113 0.1 MT69 Measured 65 - - - - - Indicated - - - - - Inferred 1.6 0.1 2 105 0.2 Total Resource 1.6 0.1 2 105 0.2 MT70 Measured 65 - - - - - Indicated - - - - - Inferred 0.7 0.1 1 161 0.1 Total Resource 0.7 0.1 1 161 0.1 Total Measured - - - - Total Indicated 10.4 0.1 12 122 1.3 Total Inferred 7.1 0.1 7 156 1.1 Total 17.5 0.1 19 136 2.4 14 ASX ANNOUNCEMENT 30 September 2026 Appendix 3 – Mount Ida JORC Tables JORC Table 1: Section 1: Sampling Techniques and Data Criteria Explanation Commentary Sampling techniques Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. Aspects of the determination of mineralisation that are Material to the Public Report. In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information • Gold and lithium sampling activities carried out by Delta Lithium and now Ballard Mining at the Mt Ida Project have included reverse circulation (RC)and diamond (DD) drilling. • RC samples were collected from a static cone splitter mounted directly below the cyclone on the rig, DD sampling was carried out to lithological/alteration domain with lengths between 0.3-1.1m • Limited historical data has been supplied, historic sampling has been carried out by Hammill Resources, International Goldfields, La Mancha Resources, Eastern Goldfields and Ora Banda Mining, and has included RC, DD and rotary air blast (RAB) drilling • Sampling of historic RC has been carried out via riffle split for 1m sampling, and scoop or spear sampling for 4m composites, historic RAB drilling was sampled via spear into 4m composites • Historic core has been cut and sampled to geological intervals • These methods of sampling are considered to be appropriate for this style of exploration Drilling techniques Drill type (eg core, reverse circulation, open- hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc). • RC Drilling has been carried out by Orlando Drilling and Frontline Drilling, PXD, RC drilling utilised an Explorac 220RC rig, T66 Schramm RC Rig with a 143 mm face sampling hammer bit, DD drilling was completed by a truck mounted Sandvik DE820 and a KWL 1500 and is HQ2 and NQ2 diameter. • Diamond tails average 200-300m depth • Historic drilling has been completed by various companies including Kennedy Drilling, Wallis Drilling, Ausdrill and unnamed contractors • Historic DD drilling was NQ sized core • It is assumed industry standard drilling methods and equipment were utilised for all historic drilling 15 ASX ANNOUNCEMENT 30 September 2026 Criteria Explanation Commentary Drill sample recovery Method of recording and assessing core and chip sample recoveries and results assessed. Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. • Sample condition is recorded for every RC drill metre including noting the presence of water or minimal sample return, inspections of rigs were carried out daily • Recovery on diamond core is recorded by measuring the core metre by metre • Limited sample recovery and condition information has been supplied or found for historic drilling Logging Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. The total length and percentage of the relevant inersections logged. • Quantitative and qualitative geological logging of drillholes adheres to company policy and includes lithology, mineralogy, alteration, veining and weathering • Diamond core logging records lithology, mineralogy, alteration, weathering, veining, RQD, SG and structural data • All RC chip trays and drill core are photographed in full • A complete quantitative and qualitative logging suite was supplied for historic drilling including lithology, alteration, mineralogy, veining and weathering • It is unknown if all historic core was oriented, limited geotechnical logging has been supplied • No historic core or chip photography has been supplied • Historic comments on logging are very useful in to verify geological details between lithologies. • Logging is of a level suitable to support Mineral resource estimates and subsequent mining studies 16 ASX ANNOUNCEMENT 30 September 2026 Criteria Explanation Commentary Sub-sampling techniques and sample preparation If core, whether cut or sawn and whether quarter, half or all core taken. If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. For all sample types, the nature, quality and appropriateness of the sample preparation technique. Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples. Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling. Whether sample sizes are appropriate to the grain size of the material being sampled. • DD sampling is undertaken by lithological/alteration domain to a maximum of 1.1m and a minimum of 0.3m. Core is cut in half with one half sent to the lab and one half retained in the core tray • Occasional wet RC samples were encountered, extra cleaning of the splitter was carried out afterward • Should over 6 samples in a row be wet, the hole will be abandoned if it is aimed to be used in a MRE, with the intention of Diamond tailing it to retain sample quality. • RC and DD samples have been analysed for Au by 50g fire assay by ALS, Nagrom, NAL and SGS, and via photon assay by ALS • Samples analysed by via fire assay at ALS, Nagrom, NAL and SGS were dried, crushed and pulverised to 80% passing 75 microns before undergoing a selected peroxide fusion digest or 4 acid digest with ICPMS finish or fire assay with ICPMS finish • Samples analysed via photon assay at ALS are dried and crushed to 3mm with 500g of material utilised for the analysis. • The recent system in place has been to conduct Photon assaying and then 4-acid digest to determine Gold and other analytes, then all pegmatite interval pulps are re- submitted for lithium analysis via peroxide fusion. • RC duplicate field samples were carried out at a rate of 1:20 and were sampled directly from the splitter on the rig. These were submitted for the same assay process as the primary samples and the laboratory are unaware of such submissions • Historic chip sampling methods include single metre riffle split and 4m composites that were either scoop or spear sampled, while historic core was cut onsite and half core sampled • Historic samples were analysed at LLAS, Genalysis and unspecified laboratories • Historic Au analysis techniques generally included crushing, splitting if required, and pulverisation, with aqua regia or fire assay with AAS finish used to determine concentration Quality of assay data and laboratory tests The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. • Samples have been analysed by external laboratories utilising industry standard methods • The assay methods utilised by ALS, Nagrom, NAL and SGS for RC chip and core sampling allow for total dissolution of the sample where required • Photon assay is a non-destructive total analysis technique • Standards and blanks are inserted at a rate of 1 in 20 in RC and DD sampling, All QAQC analyses were within tolerance • QAQC reviews are completed on a monthly basis with any fails being investigated thoroughly in conjunction with the lab. • All historic samples are assumed to have been prepared and assayed by industry standard techniques and methods • Limited historic QAQC data has been supplied, industry standard best practice is assumed 17 ASX ANNOUNCEMENT 30 September 2026 Criteria Explanation Commentary Verification of sampling and assaying The verification of significant intersections by either independent or alternative company personnel. The use of twinned holes. Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. Discuss any adjustment to assay data • Significant intercepts have been reviewed by senior personnel • No specific twinned holes have been completed, but drilling has verified historic drilling intervals • Primary data is collected via excel templates and third- party logging software with inbuilt validation functions, the data is forwarded to the Database administrator for entry into a secure SQL database. Historic data was supplied in various formats and has been validated as much as practicable • No adjustments to assay data have been made • Data entry, verification and storage protocols remain unknown for historic operators Location of data points Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. Specification of the grid system used. Quality and adequacy of topographic control • MGA94 zone 51 grid coordinate system is used • Current drilling collars have been pegged using a handheld GPS unit, all collars will be surveyed upon program completion by an independent third party • Downhole surveys are completed by the dri