Announcement PDF ASX Release 11 July 2023 Phosphoric acid leach test supports RareX Stage-3 rare earth operations for the Cummins Range Project Results show high phosphorous extraction into solution with high rare earth (RE) recovery into residue, supporting the Stage-3 RE extraction and monetisation proposition. HIGHLIGHTS • Testwork supports Stage-3 proposed monetisation path with good, rare earths extraction from the monazite and apatite mineral concentrate allowing for higher potential value-in-use of the concentrate containing enriched rare earths. • High apatite extraction into solution, with low gangue content, using low strength phosphoric acid, is suitable for high purity phosphoric acid production. • High recovery of rare earths to leach residue means low loss of RE value into the phosphate product streams from Cummins Range, a benefit of the Cummins Range monazite – apatite mineral relationship. RareX Limited (ASX: REE – RareX or the Company) is pleased to advise that recent testwork on a phosphate concentrate sample from the Cummins Range Rare Earths & Phosphate Project in the Kimberley region of Western Australia has showed promising results for processing the combined monazite-apatite phosphate concentrate. Recent testwork confirmed high bioavailability of the potential direct shipping ore (DSO) material1 and showed positive results for phosphate concentrate production 2. This positive result on the monazite-apatite mineral concentrate follows these previous positive results and provides further support to the Company's proposed staged development of the Cummins Range Project3. RareX CEO, James Durrant, said: “Whilst the initial DSO Stage-1 is our near-term focus, it is still necessary to build the case for Stage-2 and Stage-3. These results are very positive in reinforcing our proposed path to maximising resource utilisation and value by moving from phosphates and into rare earths. We’re building out the operational philosophy and product market for Stage-1, we’ve demonstrated phosphate concentrate is readily achievable for Stage-2, and now, by being able to separate, at high recovery, the rare earths from the concentrate, we are able to build our case for Stage-3.” 1 2 3 ASX Announcement 23 March 2023; Phosphate Testwork Confirms Potential to Produce Fertiliser ASX release 04 October 2023; Met Testwork Delivers Premium Phosphate Concentrate ASX Announcement 13 April 2023; Cummins Range Rare Earths-Phosphate Project – Development and Strategy Update For more information, please contact: Investors: James Durrant, CEO Media: Nicholas Read, Read Corporate Engage and Contribute: Investor Hub RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 P +61 (0) 8 9388 1474 W ree.investorhub.com/welcome P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Beginning the project as a DSO phosphate operation, before transitioning through Stage-2 and into rare earths at Stage-3, significantly de-risks the Cummins Range development from the complexity, uncertainty, and significant cost implications of designing and constructing the full rare earth value chain from the outset. Phosphoric Acid Gangue Leach Test The test was undertaken at Nagrom, Perth where a rougher flotation concentrate was leached with 20% w/w phosphoric acid at atmospheric conditions to assess the extractability of apatite and confirm RE deportment to leach solution and residue. Future tests will use flotation cleaner concentrate (a further beneficiation step) which should improve the results even further. The leach results are outlined in Table 1. Table 1: Deleterious Elements Results Summary Analyte % Dissolution P2O5 43.2% Ca 65.3% TREE Fe Al Si % Mass Loss 10.4% 3.2% 39.8% 3.1% 5.7% As indicated, the results showed 43% of P2O5 dissolution into solution. Based on previous mineralogical analysis on float concentrate streams, this dissolution rate aligns to the percentage of phosphate deporting to apatite suggesting that most, if not all, of the apatite was dissolved into solution. This is well aligned to previous leach testwork undertaken at Nagrom and ANSTO, highlighting the potential of using the concentrate for production of phosphoric acid, particularly with low gangue (i.e., iron (Fe), aluminium (Al) and silicon (Si)) dissolutions. The results also showed high TREE (total rare earth element) recovery of 90% to the residue, suggesting that very little monazite was solubilised allowing the majority of the RE to be maintained in the leach residue. This, together with the apatite removal, offered good upgrades of TREE and made the leach residue better suited for further processing to extract the rare earths values. It is worth noting that the sample tested was a rougher concentrate and the beneficiation testwork is still in progress hence there is still potential for higher TREE grade in the final concentrate. In addition to the gangue leach test, further phosphate mineral beneficiation testwork for both the Rare Dyke and Phos Dyke materials are underway, to both further improve the flotation regime, test different areas of the resource, and provide mineral concentrate for offtake support. Phosphate-optimised beneficiation is a strong alternative to rare earth-optimised flotation and may deliver greater value realisation from the Cummins Range Resource. RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx RareX has also recently announced an updated Mineral Resource Estimate (MRE) 4 for Cummins Range, which significantly enlarged the Resource and positioned Cummins Range as the largest undeveloped rare earths project in Australia. This Resource update, together with the testwork results outlined in this and previous announcements, will underpin the assumptions of the scoping level study that is currently in progress. A Scoping Study for the Stage-1 DSO mining operation and Stage-2 phosphate beneficiation is scheduled for delivery in July 2023, with a fast-tracked Definitive Feasibility Study (DFS) for the DSO product due at the end of 2023. The Cummins Range Project is located approximately 535km by road to the port of Wyndham, and slightly less to Kununurra, making transport logistics feasible for bulk products such as phosphate fertiliser. The port of Wyndham has been used for the commercial transport of bulk iron ore. This announcement has been authorised for release by the Board of RareX Limited. Competent Person’s Statements The information in this release that relates to metallurgical testwork is based on information compiled and / or reviewed by Mr Gavin Beer who is a Member of The Australasian Institute of Mining and Metallurgy (AusIMM) and a Chartered Professional. Mr Beer is a consulting metallurgist with sufficient experience relevant to the activity which he is undertaking to be recognised as competent to compile and report such information. Mr Beer consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. Mr Beer does not hold securities in RareX. The mineral resource estimate referred to in this announcement was reported by the Company in accordance with Listing Rule 5.8 on 1 May 2023. The Company confirms it is not aware of any new information or data that materially affects the information included in the previous announcement and that all material assumptions and technical parameters underpinning the estimates in the previous announcement continue to apply and have not materially changed. 4 ASX Announcement 01 May 2023; Cummins Range Resource Soars to 519Mt 0.32% TREO, 4.6% P2O5 RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Table 2. Cummins Range Mineral Resource Estimate, P2O5≥2.5% RARE DYKE Tonnes P2O5 TREO + Y2O3 HREO Nd2O3 Classification (Mt) (%) (ppm) (ppm) (ppm) 45.9 6.2 5700 290 910 Indicated Pr6O11 (ppm) 270 Nb2O5 (ppm) 1000 Sc2O3 (ppm) 90 ThU (ppm) 90 Inferred 368.9 4.0 3030 160 490 150 570 60 40 414.8 4.2 3320 180 540 160 620 70 50 PHOS DYKE Classification Indicated Tonnes (Mt) 20.8 P2O5 (%) 8.0 TREO + Y2O3 HREO (ppm) (ppm) 3580 300 Nd2O3 (ppm) 720 Pr6O11 (ppm) 190 Nb2O5 (ppm) 470 Sc2O3 (ppm) 80 ThU (ppm) 100 Inferred 83.8 5.4 2340 200 470 120 450 60 60 Total 104.6 5.9 2590 220 520 140 450 70 70 COMBINED Classification Indicated Tonnes (Mt) 66.6 P2O5 (%) 6.8 TREO + Y2O3 HREO (ppm) (ppm) 5010 290 Nd2O3 (ppm) 850 Pr6O11 (ppm) 250 Nb2O5 (ppm) 830 Sc2O3 (ppm) 90 ThU (ppm) 90 452.7 4.2 2900 170 490 140 550 60 40 Total 519.3 4.6 3170 190 540 160 580 70 50 Total Inferred Notes: 1. Due to effects of rounding, the total may not represent the sum of all components 2. TREO (ppm) includes: Light Rare Earth Oxides (LREO): La2O3, CeO2, Pr6O11, Nd2O3; and Heavy Rare Oxides (HREO): Sm2O3, Eu2O3, Gd2O3, Tb4O7, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3, Lu2O3; + Y2O3 3. ThU comprises ThO2 + U3O8 (ppm) 4. Mineral Resource is reported from all blocks, classified as either Indicated or Inferred, where interpolated block grade is >2.5%P2O5 About RareX Limited – ASX: REE RareX Limited (ASX: REE), a Perth based project development and exploration Company, was founded on the fundamental belief of the electronics revolution and the electric vehicle mega-trend. Our focus is rare earths and associated battery and electronic metals. Cummins Range, in the East Kimberley region of Western Australia, is our flagship project which aims to produce a sustainable, ethical, transparent and secure low carbon rare earth and phosphate supply chain solution for its products which satisfy the two global mega-trends of population growth and electrification. RareX maintains exploration upside programs in the immediate vicinity of the Cummins Range Project and also more broadly to identify targets and progress projects complementary to the founding beliefs and expertise of the core team. Rare earths and in particular, NdPr, are core enablers of decarbonisation and electrification of our society. NdPr supports high strength magnets which enables low carbon technologies, especially in the electric mobility sector, robotics solutions and renewable energy, particularly the wind energy sector. Phosphates are one of the three macro nutrients required in fertilisers. Fertilisers are in ever more demand due to population growth, depleting soils and reduced arable land requiring ever more intensive farming. RareX maintains material investments in Kincora Copper (ASX:KCC), Cosmos Exploration (ASK:C1X) and Canada Rare Earth Corporation (LL.V). For further information on the Company and its projects visit www.rarex.com.au RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 863 836 593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx APPENDIX A Table 1: Drill Collar Information Hole ID East MGA North MGA RLUTM End Depth Azimuth Dip Type CDX0008 307240 7866470 391 218 53 60 Diamond CDX0011 307073 7866694 392 227 50 59 Diamond CDX0015 307374 7866770 392 205 48 58 Diamond CRX0060 307140 7866752 392 120 50 61 RC CRX0063 307107 7866722 392 144 49 60 RC CRX0068 307429 7866762 391 96 53 60 RC Appendix B JORC Code, 2012 Edition – Table 1 Section 1: Sampling techniques and data - Metallurgy Criteria Sampling techniques RareX Limited ASX:REE ABN: 65 105 578 756 JORC Code explanation • Nature and quality of sampling (e.g., 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. Commentary • Diamond drill cores and RC chips were sampled for the metallurgical testwork. Samples were selected based on drill assays, drill hole location and intervals, geological and mineralogical data. Samples were riffle split from bulk samples and sent to Auralia Metallurgy Perth and/or BV Perth and/or ALS Perth and/or Nagrom Perth for assays and further testwork. • Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. • For RC chips, the entire bulk samples were riffle split to ensure a representative sample from the selected interval. Quarter diamond drill cores were sent to laboratories to conduct crushing, sampling and assaying. All laboratories used in the assaying of the Cummins Range material were checked for sampling and assaying equipment and equipment calibrations / accuracy. RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria JORC Code explanation • 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 (e.g., ‘reverse circulation drilling was used to obtain 1m 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 (e.g., submarine nodules) may warrant disclosure of detailed information. Drilling techniques Drill sample recovery RareX Limited ASX:REE ABN: 65 105 578 756 Commentary • Sample interval selection for the metallurgical testwork was based on geological controls and mineralisation of the deposit, the samples were considered representative of the mineralisation that were intended to be tested. • Drill type (e.g., core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g., core diameter, triple or standard tube, depth of diamond tails, facesampling bit or other type, whether core is oriented and if so, by what method, etc). • Drilling techniques used for the Cummins Range samples used for the metallurgical testwork were: • Method of recording and assessing core and chip sample recoveries and results assessed. • Samples used for the metallurgical testwork were collected by riffle split. Additional laboratory assays were undertaken on the samples submitted for the testwork and showed good alignments to the drill assays. • Measures taken to maximise sample recovery and ensure representative nature of the samples. • Larger and more capable rigs were used for collection of the metallurgical samples which allowed for good recoveries of samples. During each drill program, all drill rigs were checked by professional geologists, and all drill holes were logged and monitored for recoveries and accuracy prior to sample splitting and logging. RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia o Reverse Circulation (RC) drilling in 20202021, 2022 using 5 ½ inch diameter hammer. o Diamond drilling in 2021- 2022 using HQ and PQ sized rods. P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria JORC Code explanation • 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. Commentary • Holes used for the metallurgical testwork had good sample recovery hence minor sample bias. There is no distinctive relationship exist between sample recovery and grade. 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. • All samples used for the metallurgical testwork were geologically logged to a detail level that supported the metallurgical studies. • Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. • The logging is qualitative and quantitative in nature for the metallurgy samples. The recorded details included: lithology, grainsize, weathering, colour, alteration, sulphide quantity and type, structure and veining. Photos were taken for all core samples. • The total length and percentage of the relevant intersections logged. • Logging of all metallurgical samples were carried out on geological intervals. • If core, whether cut or sawn and whether quarter, half or all core taken. • Cores were cut in half and quarter, quarter cores from each selected interval were used for this metallurgical testwork. • If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. • RC chips were riffle split from the bulk bags. Samples were dry when riffle split. • For all sample types, the nature, quality and appropriateness of the sample preparation technique. • Samples used for the metallurgical testwork were diamond drill cores and RC chips which were split and prepared with appropriate equipment. Where required, the samples were crushed and ground to ensure the samples were properly prepared for the required testwork. • Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples. • All sample preparation and sampling equipment was cleaned with adequate procedures before taking of each sample to ensure there is no cross-contamination between samples. Sub-sampling techniques and sample preparation RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria Quality of assay data and laboratory tests Verification of sampling and assaying RareX Limited ASX:REE ABN: 65 105 578 756 JORC Code explanation • 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. Commentary • Drill assays, mineralogical and geological information were reviewed for selection testwork samples. Additional assays on the samples showed high repeatability of drill assays suggesting good representivity of the in-situ material hence no further sampling was required. • Whether sample sizes are appropriate to the grain size of the material being sampled. • The metallurgical sample sizes were appropriate to the grain size of the material being sampled. Where necessary, material was crushed and/or pulverised before riffle / rotary split to ensure good consistency of sampling representivity. • The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. • The assay analyses of all samples were conducted by registered laboratories (i.e., ALS, BV and Nagrom etc.) with suitable equipment and well-known quality assurance accreditation to ensure the accuracy of the assay results. Samples were assayed by X-ray fluorescence (XRF) and Inductively Coupled Plasma (ICP). • 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. • There was no reliance upon geophysical tools, spectrometers, or any other techniques for the required metallurgical testwork. All assays were undertaken with appropriate XRF and ICP equipment at registered laboratories. • Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established. • The metallurgical samples were tested against the standards and the good alignments to drill assays confirmed the accuracy of the results. • The verification of significant intersections by either independent or alternative company personnel. • There are no significant intercepts mentioned in this announcement. • The use of twinned holes. • Twin holes were not used for collection of metallurgical samples. RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria Location of data points Data spacing and distribution RareX Limited ASX:REE ABN: 65 105 578 756 JORC Code explanation • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. Commentary • An electronic geological database was used for data storage. For metallurgical testwork, all raw data from laboratories, results analysis and summary reports were documented in a metallurgy database. • Discuss any adjustment to assay data. • No adjustment was made to the assay data. • 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. • Drill hole collar locations for the metallurgical testwork have been surveyed using a differential GPS with accuracy to 0.1 m. • Specification of the grid system used. • MGA2020 Zone 52 • Quality and adequacy of topographic control. • Topographic control of the metallurgical testwork has been established from surveyed drill collars and are within 0.1 m. The Cummins Range deposit is located on flat terrain. • Data spacing for reporting of Exploration Results. • All the samples tested were selected from 6 holes from Rare Dyke and Phos Dyke from a range of depth and weathering profiles with varying TREO and P2O5 grades. • 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. • The data spacing is considered appropriate for the metallurgical testwork at this study level. • Whether sample compositing has been applied. • Samples were composited for the metallurgical testwork. Representative portion of each selected intervals were sent to the designated laboratories to undergo staged crushing and grinding before being composited and homogenised with suitable equipment. Where drill cores were used for the testwork, quarter cores were crushed into suitable sizes before splitting the representative samples used for composition. RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria Orientation of data in relation to geological structure JORC Code explanation • Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. Commentary • The orientation of the metallurgical sampling is not considered to be biased towards any geological characteristics. • 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. • N/A Sample security • The measures taken to ensure sample security. • All metallurgical samples were secured with appropriate labelling system. Samples were labelled with standard designations and were stored in locked shed. Samples were transported to Perth from site by reputable transport companies. Individual bags are cable tied and the pallets are wrapped in plastic with detailed logging sheet included. Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No audits were undertaken however the Competent Person was involved in all stages of the metallurgical sampling and tests. Inhouse reviews were also completed on the sampling techniques and testwork results. RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Section 2: Exploration Results - Metallurgy (Criteria listed in the preceding section also apply to this section.) Criteria JORC Code explanation Commentary Mineral tenement and land tenure status • Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. • The Cummins Range deposit is located on tenement E80/5092 and is 100% owned by Cummins Range Pty Ltd which is a wholly owned subsidiary of RareX Ltd. Cummins Range Pty Ltd purchased the tenement from Element 25 with a potential capped royalty payment of AU$1m should a positive PFS be completed within 36 months of purchase finalisation. • The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. • No security or impediments with tenement E80/5092. Exploration done by other parties • Acknowledgment and appraisal of exploration by other parties. • CRA Exploration defined REO mineralisation at Cummins Range in 1978 using predominantly aircore drilling. Navigator Resources progressed this discovery with additional drilling after purchasing the tenement in 2006. Navigator announced a resource estimate in 2008. Kimberly Rare Earths drilled additional holes and upgraded the resource estimate in 2012. RareX Limited ASX:REE ABN: 65 105 578 756 RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria Geology RareX Limited ASX:REE ABN: 65 105 578 756 JORC Code explanation • Deposit type, geological setting and style of mineralisation. RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia Commentary • The Cummins Range REO deposit occurs within the Cummins Range carbonatite complex which is a 2.0 km diameter nearvertical diatreme pipe that has been deeply weathered but essentially outcropping with only thin aeolian sand cover in places. The diatreme pipe consists of various mafic to ultramafic rocks with later carbonatite intrusions. The primary ultramafic and carbonatite rocks host low to high-grade rareearth elements with background levels of 1000-2000 ppm TREO and high-grade zones up to 20% TREO. Disseminated apatite is through all rock types and is also contained in phoscorite. Above the carbonatite dykes is a well-developed regolith profile that extends to 100 m below the surface where a combination of residual, or eluvial and chemical weathering have redistributed and upgraded rare earths and phosphate. • QEMSCAN and MicroXRF results have showed that all the phosphate is contained in Apatite and Monazite. The Apatite contains low UTh, no cadmium and chlorine, and elevated levels of Fl that are well below acceptable limits. • QEMSCAN and MicoXRF have showed the REO in the Regolith are deporting mostly to monazite, with lesser amounts deporting to bastnaesite, crandallite, and REE intergrowths. • QEMSCAN and MicoXRF indicate the REO in the fresh rock are deporting to monazite, bastnaesite, parisite and REE intergrowths. P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria Drillhole Information Data aggregation methods RareX Limited ASX:REE ABN: 65 105 578 756 JORC Code explanation • A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill hole collar o elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar o dip and azimuth of the hole o down hole length and interception depth o hole length. Commentary • All drill hole details used in this metallurgical testwork have been previously announced on the ASX between 2019 and 2023. • If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case. • N/A • In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g., cutting of high grades) and cut-off grades are usually Material and should be stated. • No maximum or minimum cut-off grades are used in this announcement. • Where aggregate intercepts incorporate short lengths of highgrade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. • N/A • The assumptions used for any reporting of metal equivalent values should be clearly stated. • No metal equivalent values are used in this report. RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia P +61 (0) 8 6383 6593 E info@rarex.com.au ree.investorhub.com/welcome rarex.com.au RareX Limited (ASX:REE) @rarex_asx Criteria Relationship between mineralisation widths and in