Announcement PDF ASX Announcement 7 August 2025 ASX: OD6 ION EXCHANGE TECHNOLOGY IMPROVES PROCESSING FLOWSHEET AT THE SPLINTER ROCK RARE EARTH PROJECT Major improvements in Impurity Removal and Product Quality at Splinter Rock REE deposit – JORC Mineral Resource of 682Mt @ 1,338ppm TREO Highlights: • Ion Exchange (IX) resin technology enhances removal of iron (Fe) and aluminium (Al), improving product purity and reducing downstream processing risk • Excellent overall Nd and Pr recovery of ~75% post-impurity removal • Successful development of uranium (U) and thorium (Th) removal circuit improves product payability and expands potential global offtake markets • Minimal Rare Earth Element (REE) loss (<1%) during IX process • IX further improves the downstream scale of the IR Circuit which is expected to further optimise both capital and operating costs • Optimised Impurity Removal (IR) Precipitation and Mixed Rare Earth Carbonate (MREC) separation processes • Enhanced process efficiency and product quality expected to materially improve project economics • Mixed Rare Earth Carbonate (MREC) product test results expected shortly • CPC Engineering is undertaking an Optioneering Study in conjunction with ANSTO to assess and select the preferred development pathway. Managing Director Brett Hazelden, commented: “Our flowsheet development has been led by a clear vision—delivering a high-quality product that meets the needs of global customers. We’ve focused not only on product purity and recovery but also on reducing capital and operating costs to ensure robust project economics. Integrating Ion Exchange into our flowsheet allows us to de-risk and improve the impurity removal process, specifically targeting aluminium, iron, uranium and thorium—key drivers of product payability. The combined heap leaching and impurity removal process flowsheets that we have tested in conjunction with ANSTO, are currently being assessed by CPC Engineering to determine the optimal development pathway. It is also pleasing to see the Hon Madeleine King MP discussing Rare Earths at the Diggers and Dealers Mining forum this week. The innovations of heap leach, nano filtration and ion exchange strongly position the Splinter Rock Rare Earth Project for potential government support moving forward.” MagREE (Magnet Rare Earths) = Nd + Pr + Tb + Dy) MagREO (Magnet Rare Earth Oxide) = Nd 2O3 + Pr6O11 + Tb 4O7 + Dy2O3 TREO (Total Rare Earth Oxide) = La 2O3 + CeO2 + Pr6O11 + Nd 2O3 + Sm2O3 + Eu 2O3 + Gd 2O3 + Tb 4O7 + Dy2O3 + Ho 2O3 + Er2O3 + Tm2O3 + Yb 2O3 + Lu 2O3 + Y2O3. OD6 Metals Limited (OD6 or the Company) is pleased to report highly encouraging results from Ion Exchange (IX) and Impurity Removal (IR) metallurgical testing conducted by the Australian Nuclear Science and Technology Organisation (ANSTO). This work has significantly enhanced the processing efficiency and rare earth product quality at the Splinter Rock Rare Earth Project What is Ion Exchange? Ion Exchange (IX) is a chemical process where ions are swapped between a solution and a solid material (usually a resin). In rare earth processing, ion exchange is used to concentrate rare earth elements from complex mixtures. In our case we are looking to decrease Aluminium (Al) and Iron (Fe) content to improve downstream Impurity Removal (IR) and Mixed Rare Earth Carbonate (MREC) quality. Further Uranium (U) and Thorium (Th) can be selectively removed from the final product to enable safe transport and refining. An analogous process is the use of carbon in gold leaching, whereby gold in liquid is absorbed onto carbon, then eluted into solution for electrowinning. Advantages of IX in Mining • Can be highly selective for removal of impurities eg Fe, Al, U and Th • IX concentrates REEs requiring a smaller IR circuit • <1% rare earth losses during the IX process • Low temperature and energy requirements • Scalable and widely used in existing commercial applications Image courtesy of Roytec Figure 1: Example of an Ion Exchange system 2 Updated Splinter Rock Processing Flowsheet OD6 has identified the following simplified Heap Leach, Nanofiltration (NF), Ion Exchange (IX) and Impurity Removal (IR) processing steps ( Figure 2). The Heap process, when compared to the Tank Leach process, has the potential to remove several expensive processing steps, namely: leach tanks, thickening, clay washing, solid liquid separation and reducing total power requirements and total water requirements. This is expected to significantly reduce capital and operating costs Figure 2: Indicative processing steps including Heap Leach, Nanofiltration plus Ion Exchange &Impurity Removal Inside Centre Deposit Heap Leach Results OD6 intends to focus ongoing works around the Inside Centre Prospect at Splinter Rock which currently has achieved high heap leach recoveries as previously reported (refer ASX announcement 16-10-2024) which is summarised in the following. • Indicated Resource of 119Mt @ 1,632ppm TREO (refer to ASX announcement 29-5-2024). • Column Leach recoveries of: o 79% for Magnetic Rare Earth Elements (MagREE) o ~80% for Nd & Pr o ~60-70% for Dy & Tb • Acid consumption Reduced from 37.2 kg/t. to ~7.5kg/t using nanofiltration • Column leach recoveries continue to increase over 80+ days, suggesting further potential with extended leach duration. Nanofiltration (NF) Results The Inside Centre Prospect has achieved outstanding Nanofiltration acid recovery results as previously reported (refer ASX announcement 4-8-2025) which is summarised in the following. ANSTO has undertaken the test work using actual and synthetic heap leach solutions at 38 bar pressure and commercially available membranes . • 84.5% of HCl recovered to permeate (recycled) • 94% of REEs retained in retentate (processed further) • 69% reduction in liquor volume processed in downstream circuit • Significant reductions in both downstream reagent use and plant size 3 Ion Exchange (IX) Results ANSTO has undertaken the test work using actual and synthetic heap leach solutions. The Heap leach liquor post nanofiltration is passed through a column filled with commercially available resin at a temperature of 23oC over a time period. During this period the resin selectively binds rare earth elements (REEs) ions based on size and charge differences. The barren liquor after that period is then treated and recycled to the Heap Leach pads for further use. Table 1: Ion Exchange Barren solution over time After REEs are captured (adsorbed) onto the ion exchange resin, they need to be recovered. This is done by passing a chosen liquid (eluent) through the resin, which displaces the REEs and washes them off the resin and into a solution. This process is called elution, and the REEs are said to be eluted. The REE loaded resin is “eluted” by utilising a NaCl solution acidified to pH 2 using HCl at a temperature of 23oC over 21 hours at a rate of 0,5 Bed Volume per hour. This puts the REEs back into solution for downstream Impurity Removal (IR) and future MREC precipitation. 4 Figure 3: Eluate Concentration over time (number of bed volumes From Table 1 it can be observed that: • The barren IX solution rejects a significant amount of Fe and to a lesser extent Al • REE losses to the barren solution increase after around 10 hours providing an upper limit on loading times From Figure 3 it can be observed that: • Approximately 10 Bed Volumes is required to elute the REEs back into solution sufficiently • A comparatively small amount of Fe is adsorbed onto the Resin vs the Barron Solution • Aluminium is readily adsorbed onto the resin and will need to be addressed during downstream Impurity Removal (IR) precipitation Uranium and Thorium Removal Results For context, there is a wide variety of acceptable Uranium (U) and Thorium (Th) levels in the final saleable MREC product. Lower U and Th content generally results in an increase in product payability and broadens potential worldwide offtake parties . Specifications for U/Th in MREC vary by customer, but lower values improve payability: • Typical: U < 5–20 ppm; Th < 10–50 ppm • Stringent: U < 2 ppm; Th < 5 ppm ANSTO testing confirms post IX and IR levels of both U and Th are <0.001 wt%. Further follow up testwork utilising Heap leach liquor, Nanofiltration (NF), Ion Exchange (IX) and Impurity Removal (IR) to produce a final Mixed Rare Earth Carbonate (MREC) or Hydroxide (MREH) has been undertaken with final results pending. 5 Impurity Removal (IR) Results Incorporation of an IX circuit prior to the two stage Impurity Removal (IR) precipitation process has significantly reduced REE co-precipitation during IR improving overall REE recovery - refer to Figure 4 below A number of different pH adjusting Alkali have been utilised in previous testwork including Lime, MgO and NaOH. NaOH is the current preferred Alkali when increasing pH during IR Stage 1 and 2 • Stage 1: ~pH 3.5 • Stage 2: ~pH 4.1 – 4.4 Sodium Carbonate (Na2CO3) or Sodium Hydroxide (NaOH) has been utilised to produce a Mixed Rare Earth Carbonate (MREC) or Mixed Rare Earth Hydroxide (MREH) respectively. Final MREC/H precipitation occurs from a starting point of ~4.1 to 4.4 pH to a finish pH of between 7.1 to 7.5. Nd and Pr losses are approximately 5% during the IR and MREC process step. This results in an overall recovery of ~75% from mine through to final MREC Product. Dy and Tb are more readily precipitated at a lower pH which will be important to optimise in future testwork. Figure 3: Impurity Removal Curve showing decreasing Al and Fe concentration as pH is increased Further follow up testwork utilising actual Heap Leach liquor, Nanofiltration (NF), Ion Exchange (IX) and Impurity Removal (IR) to produce a final Mixed Rare Earth Carbonate (MREC) or Hydroxide (MREH) has been undertaken with final results pending. 6 Next Steps Mixed Rare Earth Product Precipitation: Utilising Heap leach liquor, Nanofiltration (NF), Ion Exchange (IX) and Impurity Removal (IR) to produce a final Mixed Rare Earth Carbonate (MREC) or Hydroxide (MREH). Testwork has been undertaken with final results pending. Optioneering Study: As a result of the testwork performed over the last 9 months OD6 has engaged CPC Engineering (CPC) to undertake and Optioneering Study to evaluate the multiple technically viable flowsheets, to enable the techno economic assessment of each flowsheet. This study will identify a preferred flowsheet based on cost, recovery, scalability, and product quality, and is expected to be completed this quarter. Testwork Scale Up: Heap Leach and Impurity Removal testwork would be scaled up by utilising twin holed diamond core material of the original 6 holes. 6 PQ drill holes would provide about 1 tonne of REE bearing material, which can be utilised to conduct multiple optimisation and validation tests findings from the c urrent reported testwork. This volume would also produce ~1kg of MREC which would enable multiple samples to be produced for testing and offtake discussions. 7 Competent Persons Statement The scientific and technical information that relates to process metallurgy is based on information reviewed by Mr Brett Hazelden (Managing Director and CEO) of OD6 Metals Limited. Mr Hazelden is a Member of the AusIMM and has sufficient experience relevant to hydrometallurgical processes to qualify as a Competent Person as defined by the JORC Code. Mr Hazelden owns shares in the Company and participates in the Company’s employee securities incentive plan. Mr Hazelden consents to the inclusion in this announcement of the matters based on their information in the form and context in which it appears. Information in this report relating to Mineral Resource estimation and Exploration Results is based on information reviewed by Mr Jeremy Peters who is a Fellow of the Australasian Institute of Mining and Metallurgy and a Chartered Professional Geologist and Mining Engineer of that organisation. Mr Peters is a Director of Burnt Shirt Pty Ltd, consulting to OD6 and has sufficient experience which is relevant to clay-hosted rare earth mineralisation to qualify as a Competent Person as defined by the 2012 Edition of the Australasian Code for reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Peters consents to the inclusion of the data in the form and context in which it appears. Forward Looking Statements Certain information in this document refers to the intentions of OD6 Metals, however these are not intended to be forecasts, forward looking statements, or statements about the future matters for the purposes of the Corporations Act or any other applicable law. Statements regarding plans with respect to OD6 Metals projects are forward looking statements and can generally be identified by the use of words such as ‘project’, ‘foresee’, ‘plan’, ‘expect’, ‘aim’, ‘intend’, ‘anticipate’, ‘believe’, ‘estimate’, ‘may’, ‘should’, ‘will’ or similar expressions. There can be no assurance that the OD6 Metals plans for its projects will proceed as expected and there can be no assurance of future events which are subject to risk, uncertainties and other actions that may c ause OD6 Metals actual results, performance, or achievements to differ from those referred to in this document. While the information contained in this document has been prepared in good faith, there can be given no assurance or guarantee that the occurrence of these events referred to in the document will occur as contemplated. Accordingly, to the maximum extent permitted by law, OD6 Metals and any of its affiliates and their directors, officers, employees, agents and advisors disclaim any liability whether direct or indirect, express or limited, contractual, tortuous, statutory or otherwise, in respect of, the accuracy, reliability or completeness of the information in this document, or likelihood of fulfilment of any forward -looking statement or any event or results expressed or implied in any forward-looking statement; and do not make any representation or warranty, express or implied, as to the accuracy, reliability or completeness of the information in this document, or likelihood of fulfilment of any forward-looking statement or any event or results expressed or implied in any forward-looking statement; and disclaim all responsibility and liability for these forward -looking statements (including, without limitation, liability for negligence). No new information Except where explicitly stated, this announcement contains references to prior exploration results, all of which have been cross-referenced to previous market announcements made by the Company. The Company confirms that it is not aware of any new information or data that materially affects the information included in the relevant market announcements. The information in this report relating to the Mineral Resource estimate for the Splinter Rock Project is extracted from the Company’s ASX announcements dated 18 July 2024. OD6 confirms that it is not aware of any new information or data that materially affects the information included in the original announcement and that all material assumptions and technical parameters underpinning the Mineral Resource estimate continue to apply. This announcement has been authorised for release by the Board of OD6 Metals Limited 8 About OD6 Metals OD6 Metals is an Australian public company pursuing exploration and development opportunities within the critical mineral s sector, namely rare earths and copper. Copper The Company is advancing the Gulf Creek Copper-Zinc VMS Project located near the town of Barraba in NSW, Australia. Gulf Creek was mined at around the turn of the 20th century and was once regarded as the highest grade copper mine (2% to 6.5% Cu) in NSW until its closure due to weak copper prices in 1912. Very little exploration has occurred at the project i n over 100 years, with OD6 aiming to apply modern day exploration technologies. The 2025 maiden drilling program successfully defined high grade copper below the historical mine plus confirmed the strong relationship between magnetism and massive sulphide mineralisation. Geophysical modelling has identified multiple, high priority and untested targets ready for drilling providing over >3km of untested strike in the immediate minestratigraphy, and over >10km across the tenement. Rare Earth Elements OD6 Metals has successfully identified clay hosted rare earths at its 100% owned Splinter Rock Project which is located in the Esperance-Goldfields region of Western Australia. The Company released a Mineral Resource Estimate (MRE) for Splinter Rock in May 2024, confirming that the project hosts the largest and highest-grade clay-hosted rare earths deposit in Australia with an Indicated Resource of 119Mt @ 1,632ppm TREO and an Inferred Resource of 563Mt @ 1,275ppm TREO with an overall ratio of ~23% high -value Magnetic Rare Earths (MagREE). OD6 Metals believes that Splinter Rock has all the hallmarks of a world class rare earths project with a conceptual development which utilises the large and high-grade Splinter Rock resource to support a long-life REE operation supported by a low strip ratio Corporate Directory Managing Director Non-Executive Chairman Non-Executive Director Mr Brett Hazelden Mr Piers Lewis Dr Mitch Loan Financial Controller/ Joint Company Secretary Joint Company Secretary Mr Troy Cavanagh Mr Joel Ives Contact Investor Relations OD6 Metals Ltd Lucas Robinson ACN 654 839 602 www.od6metals.com.au Mail to: info@od6metals.com.au Corporate Storytime lucas@corporatestorytime.com Phone: +61 408 228 889 Phone: +61 8 6189 8515 Level 1, 1 Alvan Street, Subiaco, WA 6008 9 Metallurgical Sample Selection and Testing Approach The Company has created a composite sample for the Inside Centre that represent an area of consistent geology, prior metallurgical outcomes, low striping ratios and significant grades. A total 6 holes were selected (see table below) to composite at Inside Centre with samples combined by weight to reflect the intercept length to maintain representativity and minimise any bias. Column (Heap) Leach tests agglomerated the samples with a small amount of flocculant (~300g/t) to wet the ore and bind the fines together. They are then irrigated with 25 g/l HCl lixiviant and run at ANSTO’s standard column operating conditions for the duration of the tests. The column tests were conducted over an 80 day period with samples still extracting rare earths at the end of this period. Metallurgical Composite Drill Hole Location Details – Inside Centre Deposit Hole ID Type Easting Northing RL (m) Dip (degrees) Depth(s) SRAC0225 Aircore 501815 6336021 204.1 -90 33-86 SRAC0226 Aircore 501953 6335879 204.4 -90 21-81 SRAC0266 Aircore 501399 6336445 205.4 -90 21-58 SRAC0357 Aircore 502068 6336999 204.9 -90 39-90 SRAC0358 Aircore 502177 6336615 204.0 -90 36-84 SRAC0359 Aircore 501939 6336293 203.5 -90 27-87 Figure 6: Inside Centre Composite Sample Locations overlain on airborne electromagnetic survey interpretation 10 JORC 2012 – Table1: Splinter Rock Section 1 Sampling Techniques and Data (Criteria listed in the preceding section also apply to this section) Criteria JORC Code explanation Commentary Sampling techniques • • • • • Drilling techniques Drill sample recovery • • • • Logging • • • Sub-sampling techniques and sample preparation • • • • • 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. Drill type (eg core, reverse circulation, openhole 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). 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. 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 intersections logged. 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 • • • • • • • • • • • • • • • • Geochemical sampling was undertaken by sampling of metre interval samples returned from the cyclone of a conventional air core drilling rig. Certified reference samples, duplicates and blank samples were inserted into the drill sample stream such as to represent approximately 5% of the samples submitted to the laboratory for analysis Two composite samples were collected over three metre intervals – the first (the A sample) being submitted for laboratory analysis and the second (the B sample) being retained as a reference. A sample from each metre was collected and stored in a chip tray for logging and x-ray diffraction analysis. Drill intercept samples for the two heap leaching metallurgical composites were obtained from the ‘B’ samples located on the company’s Exploration Licenses. Samples were sent to ANSTO for making up the composites and completing the testwork. Air core drilling was completed by hammer and blade industry standard drilling techniques Aircore is considered to be an appropriate drilling technique for saprolite clay Drilling used blade bits of 87mmØ with 3m length drill rods to blade refusal. Air core recoveries were not recorded but are not considered to be materially biased, given the nature of the geology and samples. The assay data will be analysed against control samples and historical assays for any indications of bias All chips were logged qualitatively and quantitatively. A sample from each metre was collected and stored in a chip tray for logging Geological logs recorded lithology, colour and weathering. A composite sample of ~ 3kg for analysis was taken using a scoop from each metre pile to subsample 1 to 1.5kg sample. This was then dispatched to the laboratory. A second composite sample was similarly taken and stored on site as a reference Air core samples were a mix of wet and dry Certified reference samples, duplicates and blank samples were inserted into the sample stream such as to represent approximately 5% of the samples submitted to the laboratory for analysis Heap Leach test samples were composited from the B samples by weight to reflect the intercept length to 11 Criteria JORC Code explanation • Quality of assay data and laboratory tests • • • Verification of sampling and assaying • • • • 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. The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. 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. 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. 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. Commentary maintain representativity and minimise any bias • “A Samples” were submitted for chemical analysis using industry standard sample preparation and analytical techniques including: • Riffle split all “A samples” to 50:50 bagging one half as a coarse reject for storage • Pulverise the balance of the material via LM-5 • Generate a standard 300g master pulp packet • Bag the balance as a bulk pulp master for storage • Multi-Element Ultra Trace method ME-MS61r for exploration in soils or sediments. 4-Acid digest on 0.25g sample analysed via ICP-MS and ICP-AES. REEs included. • The final column residues were also analysed. The following techniques were used: • XRF at ANSTO for major gangue elements (Al, Ca, Cu, Fe, K, Mg, Mn, Na, Ni, P, Si, Sr, Zn) and a range of minor elements • The REEs along with Y, U, Th and Sc in the samples will be analysed by tetraborate fusion digest/ICP-MS (lithium tetraborate method) and four acid digest/ICP-MS at ALS Geochemistry Laboratory, Brisbane • • • • Certified reference samples, duplicates and blank samples were inserted into the drill sample stream such as to represent approximately 5% of the samples submitted to the laboratory for analysis No holes were twinned (duplicated). Data stored in a database, with auto -validation of logging data, Multielement results (REE) are converted to stoichiometric oxide (REO) using element-tostoichiometric conversion factors. Element ppm Ce Dy Er Eu Gd Ho La Lu Nd Pr Sm Tb Tm Y Yb • • Conversion Factor 1.2284 1.1477 1.1435 1.1579 1.1526 1.1455 1.1728 1.1371 1.1664 1.2082 1.1596 1.1510 1.1421 1.2699 1.1387 Oxide Form CeO2 Dy2 O3 Er2 O3 Eu2 O3 Gd2 O3 Ho2 O3 La2 O3 Lu2 O3 Nd2 O3 Pr6 O11 Sm2 O3 Tb4 O7 Tm2 O3 Y2 O3 Yb2 O3 Rare earth oxide is the industry accepted form for reporting rare earths. The following calculations are used for compiling REO into their reporting and evaluation groups: TREO (Total Rare Earth Oxide) = La2O 3 + CeO 2 + Pr 6O 11 + Nd 2O 3 + Sm2O 3 + Eu2O 3 + Gd 2O 3 + Tb4O 7 + Dy 2O 3 + Ho 2O 3 + Er 2O 3 + Tm2O 3 + Yb2O 3 + Lu2O 3 + Y2O 3. Note that Y2O 3 is included in the TREO calculation. 12 Criteria JORC Code explanation Commentary 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. • Data spacing for reporting of Exploration Results. Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. Whether sample compositing has been applied. • • • Data spacing and distribution • • • • • • • • • • • • • • • • Orientation of data in relation to geological structure • • Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. • • • • • Drill hole collars were located using a handheld GPS to +/-5m accuracy Grid system was MGA 94 Zone 51 Downhole survey was not undertaken, the holes being vertical No topography control was used, given the relatively flat topography Drilling intervals were closed to approximately 200m centres where historic drilling returned elevated REE assays Downhole samples were taken on 1m intervals This drilling indicated excellent continuity, particularly when supported by the results of the Tempest Airborne Aeromagnetic Survey, which was used to define basin limits. Tempest Airborne Electromagnetic Survey (AEM), undertaken by Xcalibur Multiphysics Data collected using the TEMPEST EM system (50Hz) using fixed wing aircraft. Nominal flight height of 120 m above ground level. GPS cycle rate of 1 second, accuracy 0.5m Altimeter accuracy of 0.05m Flight line spacing 400 to 800m. Conductivity measurements and sampling interval at approximately 11 to 12 metres along line. This data when combined with further drilling will be utilised to guide future mineral resource estimation Drillholes were vertical and approximately perpendicular to mineralisation hosted in flat lying claybeds This orientation is not considered by the Competent Person to have introduced material sampling bias. For AEM data: Flight lines are North West- South East: drainage and regolith patterns s