Announcement PDF PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO ASX Release Buxton Resources Ltd (ASX: BUX, BUXO) 06 July 2026 Zanthus Project – Broken Hill Type Ag-Pb-Zn Target Identified; Ground EM Survey Commencing • Zanthus Project (Fraser Range, WA) returned to 100% BUX ownership • New assay and mineralogical work have identified a Broken Hill/Cannington- style silver-lead-zinc target at the Cohen prospect, within the same stratigraphic package that hosts Buxton's historic magnetite mineralisation • Best result: 2.0 m at 7.5 g/t Ag, 1,405 ppm Pb and 4,230 ppm Zn from 220 m – 222 m (end of hole) in ZRC025, within a broader 8.0 m zone — mineralisation remains open at depth. • Multiple independent lines of evidence point to a Broken Hill-type mineral system including: the metal association, indicator minerals spessartine (Mn garnet) and gahnite (Zn spinel) and a Mn-rich iron-formation marker horizon directly above the mineralisation. • Buxton has engaged a contractor to run a ground electromagnetic survey at Cohen targeting blind sulphide conductors — due to commence in July 2026 Buxton Managing Director Marty Moloney commented: "After IGO withdrew from the Fraser Range JV in 2025, Buxton commenced an internal review of the historic data over the Zanthus tenement. This work identified an anomalous silver-lead-zinc intercept sitting directly beneath the Cohen magnetite mineralisation. By undertaking a detailed geological review, including re-assaying historic pulps, we are now confident that a Broken Hill / Cannington-style mineral system is present at Cohen. Those are two world-class mineral deposits, so we're moving quickly to get a ground EM survey underway in July to help us define drill targets." Buxton is pleased to advise positive results from re-assay of archived pulps, recently returned to BUX by IGO Ltd (IGO). IGO had recently withdrawn from their Farm-In and Joint Venture over the Zanthus license E28/1959 on 30 June 2025, returning a 100% undivided interest in the tenements to Buxton. Buxton then set about analysing the IGO and BUX historical datasets for exploration opportunities. This work identified several historical assay results that indicated a previously undocumented mineralised signal. However, the historic laboratory analysis methods carried high detection limits that limited confidence in the interpretation. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Historical pulps within holes ZRC024 and ZRC025 were selected for re-analysis using an improved geochemical method (ALS ME-MS61r) with follow-up XRD analysis of selected samples. This work has confirmed a coherent Ag-Pb-Zn-Cd-Mn anomaly at the base of ZRC025 (Table 1), immediately beneath a Mn-rich magnetite-quartzite horizon that Buxton has previously drilled and assessed as part of its Cohen magnetite project. The geochemical and mineralogical character of this zone — including spessartine- rich garnet and the presence of gahnite — is consistent with internationally recognised Broken Hill-type (BHT) Pb-Zn-Ag deposits such as Broken Hill (NSW) and Cannington (Qld), where similar garnet-magnetite-quartzite horizons occur as marker horizons adjacent to the ore position. The mineralised interval at the base of ZRC025 remains open, with grades increasing toward the bottom of the hole. Table 1: Key new drill intercepts - ZRC024 & ZRC025 pulp re-assay (ALS ME-MS61r 2026). All intercepts are reported as down-hole lengths. True widths are unknown. Hole ID From (m) To (m) Int. (m) Ag (g/t) Pb (ppm) Zn (ppm) Mn (%) Interpretation ZRC025 214 222 (eoh) 8.0 2.6 691 1,706 0.54 BHT Ag-Pb-Zn zone at EOH — escalating into basal metre, open at depth incl. 218 222 4.0 4.4 1,001 2,933 0.70 Higher-grade core of the BHT interval incl. 220 222 (eoh) 2.0 7.5 1,405 4,230 0.92 Peak 2 m-composite EOH sample; elevated Cd (18 ppm) and Bi (1.3 ppm) ZRC025 164 200 36.0 0.02 4 101 1.46 Mn-rich magnetite BIF — interpreted BHT hangingwall marker horizon ZRC024 44 100 56.0 0.06 8 116 1.45 Mn-Fe BIF marker horizon — same stratigraphy, up-plunge incl. 66 78 12.0 0.09 5 56 2.05 Mn peak (to 2.25%) — centre of marker horizon To follow up this new target, Buxton has engaged Russell Mortimer and GEM Geophysics to design and run a ground-based MLTEM survey over the Cohen area (Figure 1), with an initial line layout integrating existing geophysical data with the drillhole results. The survey is intended to test whether a blind sulphide conductor is present beneath the iron-formation horizon, and to help define priority targets for follow-up drilling. Field work is anticipated to commence in July 2026, subject to contractor scheduling and weather, with results expected to be reported once processing and interpretation are complete. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Figure 1: Plan view of Cohen prospect with the planned MLTEM survey lines and historical drilling. The ground magnetic inversion, together with drill hole data, indicates a synformal setting with the newly identified Ag-Pb-Zn-Cd-Mn anomaly at the base of ZRC025 lying in the footwall of the quartz- magnetite unit mapped by the magnetics. A deeper magnetic feature lies immediately below ZRC025 and is indicated in red (also shown on Figure 6). PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Figure 2: Zanthus Project location map. The Project is situated within the Proterozoic Albany-Fraser Orogen of southern Western Australia which hosts rocks of the right age, composition, metamorphic grade and deformation history to host Broken Hill-type Ag-Pb-Zn mineralisation. The Project takes its name from the Zanthus siding on the Trans-Australian Rail Line, approximately 35 km to the north- east, providing access to multi-user rail infrastructure with a direct connection to Esperance Port. Vehicular access is provided by the Trans Access Road from Kalgoorlie, then the Zanthus Balladonia Road, then existing exploration access tracks in good condition. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Buxton will provide a further update as the program progresses and results become available. ---o0o--- This announcement is authorised by the Board of Buxton Resources Ltd. For further information, please contact: Martin Moloney Managing Director marty@buxtonresources.com.au Sam Wright Company Secretary sam@buxtonresources.com.au PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Technical Discussion The Cohen prospect is concealed beneath a 20-30m veneer of transported regolith and occurs within a sequence of granulite-facies metamorphic rocks within the Proterozoic Albany-Fraser Orogen. The Proterozoic sequence comprises garnet- magnetite quartzite, amphibolite and associated schistose units. Buxton's 2011 RC geological logging of ZRC025 records an amphibolite horizon from approximately 89–165m, interpreted here as a Mn-rich metamorphosed iron formation or mafic volcanic unit, overlying further garnet-magnetite quartzite before a second amphibolite unit commences at 212m and continues to end of hole. The Proterozoic lithological and metamorphic association is the textbook host environment for Broken Hill-type (BHT) Pb-Zn-Ag deposits internationally, including: - Broken Hill (NSW; pre-mining resource of ~280 Mt at ~11% Pb 8.5% Zn and ~148 g/t Ag) 1 - Cannington (Qld; pre-mining resource of ~43.8 Mt at 11.6% Pb, 4.4% Zn and 538 g/t Ag) 2 and - Aggeneys-Gamsberg (South Africa). In BHT terminology, the garnet-magnetite quartzite hosting magnetite mineralisation at Cohen is interpreted as a marker horizon analogous to those flanking the ore position at these other deposits, rather than as the BHT mineralised horizon itself. Petrographic work on chips from ZRC024 described a granoblastic quartz – magnetite – garnet – anthophyllite – orthopyroxene – apatite assemblage, with SEM analysis returning 5–8% MnO in garnet (spessartine-rich) and approximately 1% MnO in magnetite, the latter containing fine exsolved hercynite-spinel lamellae 3 . Spessartine with MnO contents in this range is recognised in the literature 4 as a diagnostic BHT halo indicator, reflecting the distinctive Mn-enrichment of these systems relative to typical iron formations. New Rietveld semi-quantitative XRD analysis on 10 archived pulps (ALS, April 2026) independently corroborates and extends this petrographic work, returning 11–31 wt% magnetite and 16–24 wt% spessartine-rich garnet across the BIF interval, with 1 Leach, D.L., Sangster, D.F., Kelley, K.D., Large, R.R., Garven, G., Allen, C.R., Gutzmer, J. and Walters, S., 2005. Sediment- hosted lead-zinc deposits: a global perspective. Economic Geology, 100th Anniversary Volume, p. 561–607. 2 Walters, S.G. and Bailey, A., 1998. Economic Geology, v. 93, p. 1307–1329. 3 Townend, R., 2011. Petrological report on selected Zanthus drill core samples (ZRC024, ZRC034). BUX internal report. 4 Spry, P.G., Heimann, A., Messerly, J.D., Houk, R.S. & Teale, G.S., 2008. Discrimination of metamorphic and metasomatic processes at the Broken Hill Pb-Zn-Ag deposit using REE systematics in garnet. Economic Geology 103, 1601–1617. These mining projects are cited for geological context only. Zanthus is an exploration-stage project with no certainty that further exploration will define a Mineral Resource. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO gahnite (ZnAl₂O₄) — a metamorphosed zinc-aluminate accessory mineral recognised as a further BHT marker 5 — identified in several of the basal mineralised samples. The new Ag-Pb-Zn-Cd-Mn geochemical signature was identified via re-assay of archived RC pulps from ZRC024 and ZRC025 using ALS's ME-MS61r 48-element ICP- MS method. This method carries a silver detection limit of 0.02 g/t, materially lower than the 0.5 g/t detection limit of the four-acid OES method used on these samples at the time of original drilling. Given that vectoring toward BHT-style mineralisation typically requires resolution at or below approximately 0.05g/t Ag, the original dataset could not unambiguously resolve this signature. Figure 3: Ag vs Cd and Pb vs Zn for historic composites (grey) vs new 2026 ICP-MS assays (blue). The ZRC025 EOH samples (red stars) step decisively into the BHT anomaly quadrant. The new assay data provides significantly improved sensitivity particularly in pathfinder elements like Ag and Cd which allow for higher confidence in isolating anomaly from background levels. Stratigraphically, the 36m Mn-rich magnetite BIF interval logged in ZRC025 from 164–200m is interpreted as the hangingwall marker horizon, with the newly identified sulphide-bearing zone at 214–222m representing the lode-equivalent position immediately adjacent to it — consistent with the typical spatial relationship between marker horizon and ore position seen at Broken Hill and Cannington. This relationship is also observed up-plunge in ZRC024, where a 56m BIF interval (44– 100m) carries a comparable but weaker Mn-Fe geochemical signature. 5 Heimann, A., Spry, P.G. & Teale, G.S., 2005. Zincian spinel associated with metamorphosed Proterozoic base metal sulphide occurrences, Colorado: a re-evaluation of gahnite composition as a guide in exploration. Can. Min. 43, 601–622. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Figure 4: ZRC025 down-hole geochemistry. Upper purple band (164–200 m) is a Mn- and Fe-rich magnetite BIF — interpreted BHT hangingwall marker horizon. Lower pink band (214–222 m) is the newly identified Ag-Pb-Zn-Cd-Mn sulphide zone — the lode-equivalent position; values escalate into the EOH sample, open at depth. The XRD mineralogy results confirm the presence of gahnite – a key BHT indicator mineral – in the lode-equivalent position. Two technical caveats are noted. First, ZRC025 was not downhole gyro-surveyed at the time of drilling (downhole access was deemed unsafe due to caving), so the reported downhole position of the 214–222m intersection relies on the planned collar dip and azimuth rather than a verified downhole survey; the adjacent gyro- surveyed hole ZRC024 shows the drilling typically flattens by several degrees over its length, so some unquantified deviation in ZRC025 cannot be excluded. Second, no field QA/QC sample (standard, blank or duplicate) was inserted within or immediately adjacent to the 214–222m interval during the original 2011 sampling PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO program, so there is presently no independent field duplicate-based precision check specific to the assays driving this interpretation. However, the 2026 ALS re-assay batch (PH26116347) was submitted under ALS's internal laboratory QA/QC protocol, and geologically consistent multi-element proportions which escalate systematically toward end of ZRC025 provide additional confidence in the results. Follow-up work is focused on resolving the geometry and extent of this target. The planned MLTEM ground survey is designed to test for a blind sulphide conductor beneath the BIF horizon, and will be interpreted alongside historic Spectrem airborne EM and ground magnetic inversion data to help define priority drill targets ahead of any follow-up drilling to test the open intersection at ZRC025. Figure 5: Townend (2011) reflected-light photomicrograph of ZRC024 92–94 m: coarse magnetite- quartzite with hercynite-spinel exsolution in magnetite. SEM analysis of associated garnet returned 5– 8% MnO (spessartine-rich) — textbook BHT marker-horizon mineralogy. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Table 2: Collar information for re-assayed drillholes Hole ID Easting (m) Northing (m) RL (m) Total Depth (m) Grid ID Azi True (deg) Dip (deg) ZRC024 583618.3 6540791.2 221.797 144 MGA94 Z51 272.1 -60 ZRC025 583677.6 6540791.3 221.905 222 MGA94 Z51 268.3 -60 Figure 6: Perspective view of the Cohen Project with 3D (ground) magnetic susceptibility model (>0.175 SI) highlighting a) resampled holes ZRC024 & ZRC025, and b) a structurally anomalous zone of high magnetic susceptibility (red, also >0.175 SI) at depth below these holes. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO About the Zanthus Project The Zanthus Project is located in southern Western Australia, within the Proterozoic Albany-Fraser Orogen, approximately 35km south-west of the Zanthus siding on the Trans-Australian Rail Line and within trucking distance of existing multi-user rail infrastructure to Esperance Port. The Project is held 100% by Buxton on live tenement E28/1959 (61.5 km²) with two pending applications E28/3603 & E28/3604 which if granted would extend the total project area to approximately 129 km². Magnetite Exploration 2010-11 Zanthus has historically been explored as a magnetite iron ore project. Geophysical surveying and drilling completed by Buxton between 2010–2012 identified extensive magnetite mineralisation across five prospects — Cohen, Marley, Zappa-Dylan, Joplin-Hendrix and Southern — with efforts focused at Cohen where 27 RC holes for 3,571 metres were drilled. Limited metallurgical testwork was also completed on the Cohen magnetite mineralisation in 2011. Davis Tube Recovery (DTR) tests were performed by ALS-Ammtec on four composite RC drill samples totalling approximately 141 kg, with results indicating that a magnetite concentrate grading above 68% mFe can be produced at relatively coarse grind sizes — p80 of 150 microns, and in some cases 250 microns — without fine grinding. Mass recoveries averaged approximately 75% and DTRs averaged approximately 31% across the three most representative composites (excluding one composite whose head grade was substantially lower than the corresponding drillhole intercept, suggesting a possible sampling error during testwork). No asbestiform minerals were detected in any sample (ASX 08 Dec 2011). The coarse liberation characteristic is considered a significant economic advantage for any potential magnetite mining project, as it avoids the capital and operating cost penalty associated with fine grinding that has historically constrained other WA magnetite projects. Between 2011 and 2015, Buxton undertook exploration for nickel on now surrendered areas of E28/1959. IGO JV 2016-2025 E28/1959 was subject to a farm-in and joint venture arrangement with IGO Ltd (IGO - formerly Independence Group NL) from August 2016, under which IGO acquired a 90% interest in the tenement in respect of all minerals other than iron ore (Buxton retained a 100% interest in, and the exclusive right to explore for, iron ore throughout this period). IGO was exploring for Nova-style magnetic nickel-copper-cobalt mineralisation. IGO flew Figure 7: BUX's WA Project Portfolio PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO detailed airborne EM and magnetics surveys; however, their on-ground exploration in the current E28/1959 tenement area was limited to wide-spaced Air Core drilling and a ground gravity survey. IGO elected to withdraw from the joint venture and resign as manager effective 30 June 2025, terminating the arrangement and transferring its 90% interest back to Buxton via duly executed Form 23 transfers. Buxton therefore holds (and from 30 June 2025 has held the contractual right to) a 100% interest in all minerals on E28/1959, including the newly identified BHT-style mineralisation, subject to finalisation of registered title transfers. BUX 2025 onwards IGO returned Buxton's historic pulps in late 2025 and Buxton initiated a review of all previous exploration results, including limited re-analysis as discussed herein. This work program has identified a new exploration opportunity at Zanthus, distinct from the historical magnetite story: a Broken Hill-type (BHT) Ag-Pb-Zn-Mn geochemical and mineralogical signature at the base of hole ZRC025, within the same stratigraphic sequence previously assessed for its magnetite content. This signature was apparently previously unrecognised, possibly due to high silver / cadmium detection limits of the 2011 4-acid OES assay method. Buxton considers that this newly identified BHT opportunity, alongside the Project's existing magnetite potential and its location close to established rail and port infrastructure, materially enhances the prospectivity of the Zanthus Project. Figure 8: BUX undertaking field reconnaissance June 2026 at the Cohen prospect PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Previously Reported Information – Zanthus There is information in this announcement relating to exploration results previously announced on: - 23 June 2011 Drilling commences at Zanthus Project - 12 September 2011 Wide, High Grade Magnetite Intercepts at Zanthus - 08 December 2011 Premium Metallurgical Characteristics Confirmed at Zanthus - 24 August 2016 BUX & IGO enter into Fraser Range Joint Venture Validity of Referenced Results Buxton confirms that it is otherwise not aware of any new information or data that materially affects the information from previous ASX Announcements which have been referenced in this Announcement. Competent Persons The information in this report that relates to Exploration Results is based on information compiled by Mr Martin Moloney from Buxton's exploration database, ALS laboratory reports, and historical petrological reporting by Roger Townend & Associates (2011). Mr Moloney, (B. App Sc. Hons) is a Member of the Australian Institute of Geoscientists and Society of Economic Geologists. Mr Moloney is a full-time employee of Buxton Resources Ltd. Mr Moloney has sufficient experience which is relevant to the activity being undertaken to qualify as a “Competent Person” as defined in the 2012 edition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Moloney consents to the inclusion in this report of the matters based on the information in the form and context in which it appears. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Cautionary Note Regarding Forward-Looking Information This Announcement contains forward-looking statements and forward-looking information within the meaning of applicable Australian securities laws, which are based on expectations, estimates and projections as of the date of publication. This forward-looking information includes, or may be based upon, without limitation, estimates, forecasts and statements as to management’s expectations with respect to, among other things, the timing required to execute the Company’s programs, access conditions across the Company's project areas, and drilling conditions. Wherever possible, words such as “anticipate”, “believe”, “expect”, “intend”, “should”, “may” and similar expressions have been used to identify such forward-looking information. Forward-looking information is based on the opinions and estimates of management at the date the information is given, and on information available to management at such time. Forward-looking information involves significant risks, uncertainties, assumptions, and other factors that could cause actual results, performance or achievements to differ materially from the results discussed or implied in the forward-looking information. These factors, including but not limited to, fluctuations in currency markets, fluctuations in commodity prices, the ability of the Company to access sufficient capital on favourable terms or at all, weather and access conditions, contractor and equipment availability, changes in national and local government legislation, taxation, controls, regulations, the speculative nature of mineral exploration and development, obtaining necessary licences and permits, the inherent risks involved in the exploration and development of mineral properties, and the possibility of project cost overruns or unanticipated costs and expenses, should be considered carefully. The Company does not undertake, and assumes no obligation, to update or revise any such forward-looking statements or forward-looking information contained herein to reflect new events or circumstances, except as may be required by law. No stock exchange, regulation services provider, securities commission or other regulatory authority has approved or disapproved the information contained in this Announcement. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO JORC Code, 2012 Edition – Table 1 Section 1 Sampling Techniques and Data Criteria JORC Code 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. The exploration results reported are derived from re- assay of archived sample pulps from Buxton's 2011 RC drilling program at the Cohen prospect (holes ZRC024 and ZRC025), together with new Rietveld XRD analysis of 10 archived pulps spanning the same interval. No new drilling has been undertaken for this release. The original 2011 RC drilling was sampled on nominal 1–2m composite intervals; archived pulps from that program were retrieved from Buxton's Perth storage facility and a split was submitted to ALS for 48-element ICP-MS analysis (ME-MS61r) and to ALS for Rietveld XRD. Original RC sample collection, riffle splitting and sample reduction procedures from 2011 have not been independently re-verified as part of this program. In addition to the geochemical sampling and petrology/XRD work described above, this release also references ground magnetic survey data acquired over the Cohen prospect by Fugro Ground Geophysics Pty Ltd in December 2010 (Report G2539). Data were collected using a Geometrics G859 caesium-vapour magnetometer (continuous half-second readings, backpack-mounted with Novatel GPS, sensor height approximately 1.8m) at 100m line spacing, locally tightened to 50m over Cohen (81 lines, 98 line-km total across the Cohen, Joplin and Dylan prospects). Diurnal drift correction was applied using a Scintrex Envimag base magnetometer recording at 30-second intervals, with a base datum of 58,000nT. Data were processed in Geosoft Oasis Montaj, de-spiked on a line-by-line basis to remove single-point cultural/vegetation- deviation artefacts, and delivered in GDA94 MGA Zone 51. 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). Holes ZRC024 and ZRC025 are angled RC holes drilled by Orbit Drilling in September 2011, dipping - 60° at azimuths of 272° and 268° respectively (MGA94 Zone 51). No new drilling has been completed for this release; refer to Buxton's historical 2011 reporting (ASX 03 November 2011 and 12 September 2011) for original drilling details. PO Box 661 Nedlands WA 6009 15 Robinson Av Belmont WA 6104 T: 08-9380 6063 E: info@buxtonresources.com.au W: www.buxtonresources.com.au View online: https://buxtonresources.com.au/link/PB2AjP ASX: BUX & BUXO Criteria JORC Code 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. No formal gravimetric sample recovery was recorded for the ZRC program; no intervals in ZRC024 or ZRC025 were flagged as low recovery in the sample database; all intervals are regular 2m composites with no short intervals that would indicate lost ground; and samples were taken by spearing the cyclone cone product rather than riffle splitting, which is standard practice for the era and region but represents a lower-precision sub-sampling method compared to a riffle splitter. The absence of low- recovery flags and the consistency of full-length sample intervals across ZRC024 and ZRC025 are the available positive indicators; the absence of weight data means a formal recovery assessment cannot be made from the existing records. No new sample recovery issues arise from the re- assay of archived pulps, as these represent previously prepared, dried and pulverised sample material. No apparent relationship can be defined 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. Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. The total length and percentage of the relevant intersections logged. Original geological logging of ZRC024 and ZRC025 was complete