Announcement PDF ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Munda Gold Deposit Updated Mineral Resources Precursor to Starter Pit Mining Highlights • Current estimates of resources are pit-constrained to reflect reasonable prospects for eventual economic extraction. • Munda Gold Deposit resources (Indicated and Inferred) re-estimated at 3.65Mt at 1.23g/t at a 0.5g/t cut-off for 145,000 oz Au. • Estimates incorporate new data from 10m x 10m spaced drilling over a shallow portion of the deposit. • Resource model being used to optimise a starter pit mining near surface gold mineralisation. Management Comment Mr. Mark English, Managing Director: “We have steadily progressed our understanding of the Munda gold deposit with infill drilling and this resource update as part of that progression. We’re pushing hard to start mining a starter pit early in 2025” Mr. John Utley, Technical Director: “The 10m x 10m drill program reaffirmed the style of gold mineralisation at Munda, notably very high grades against a background of much lower grades. It is prudent to take a conservative approach to the contribution of the high grades to the mineable grades at Munda in our planning for a starter pit such that any variations should be on the upside” Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 The Announcement Auric Mining Limited (ASX: AWJ) (Auric or the Company) is pleased to announce an updated estimate of gold resources for the Munda gold deposit. Matrix Resource Consultants Pty Ltd (“Matrix”) have completed a new estimate of Mineral Resources for the Munda gold deposit as a precursor to defining an Ore Reserve for a trial pit. To provide estimates with reasonable prospects of eventual economic extraction, Mineral Resources are reported within an optimal pit shell generated at a gold price of $AUD3,200/oz. Mineral Resource estimates at a range of gold cut-off grades are presented in Table 1. The figures are rounded to reflect the precision of the estimates and include rounding errors. Table 1 November 2024 Munda gold deposit Mineral Resource estimates Au g/t Cut-off 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 MTonnes 7.56 5.51 4.24 3.35 2.71 2.24 1.89 1.62 1.41 Indicated Au g/t 0.72 0.89 1.06 1.22 1.38 1.53 1.67 1.81 1.94 Koz 175 158 144 131 120 110 101 94 88 MTonnes 0.5 0.4 0.3 0.3 0.2 0.2 0.2 0.1 0.1 Inferred Au g/t 0.9 1.0 1.2 1.4 1.5 1.7 1.9 2.0 2.1 Koz 14 13 12 14 10 11 12 6 7 Indicated + Inferred MTonnes Au g/t Koz 8.06 0.73 189 5.91 0.90 171 4.54 1.07 156 3.65 1.23 145 2.91 1.39 130 2.44 1.54 121 2.09 1.69 114 1.72 1.82 101 1.51 1.95 95 Since the previous estimate, described in an ASX announcement on 28 January 2022. Auric has completed a close-spaced drill program on a 10m x 10m pattern over a shallow portion of the Munda gold deposit. That information and conservative treatment of outlier assay grades has resulted in a slight reduction in estimated grade relative to previous Mineral Resources. The reporting of resources within an optimal pit shell reduces the tonnes compared with the earlier estimate. For comparison, Table 2 presents the January 2022 Mineral Resource estimates. The figures in this table are also rounded to reflect the precision of the estimates and include rounding errors. Table 2. January 2022 Munda gold deposit Mineral Resource estimates Au g/t Cut-off 0.20 0.30 0.40 0.50 0.60 0.80 1.00 Indicated MTonnes Au g/t 8.928 0.75 6.113 0.98 4.598 1.19 3.684 1.38 3.052 1.55 2.240 1.86 1.737 2.14 Auric Mining Limited ACN 635 470 843 Koz 215.3 193.0 176.3 163.1 152.0 133.9 119.4 Inferred MTonnes Au g/t 2.807 0.61 1.597 0.88 1.070 1.15 0.797 1.39 0.633 1.61 0.450 1.98 0.353 2.28 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 Koz 54.7 45.4 39.5 35.6 32.7 28.7 25.9 Indicated + Inferred MTonnes Au g/t Koz 11.735 0.72 270.0 7.710 0.96 238.4 5.668 1.18 215.8 4.481 1.38 198.7 3.685 1.56 184.7 2.690 1.88 162.6 2.090 2.16 145.3 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Information Material to the Estimates of Mineral Resources Munda Summary The Munda Gold Project is situated on mining lease M15/87, approximately 5km west of Widgiemooltha and is linked to the Coolgardie-Esperance Highway by miscellaneous licence L15/414. There have been numerous phases of exploration and resource drilling at Munda since the 1960’s. The majority of this work was undertaken by Western Mining Corporation with subsequent programs by seven different companies including excavation of a small pit by Resolute Mining in 1999. The most recent drilling was by Auric with 55 deeper RC holes drilled in 2021-22 followed by 361 shallow infill holes drilled on a 10m x 10m pattern in 2023-24 (Figure 1). Figure 1. Munda drilling relative to resource pit crest with resource drill holes referenced by exploration company and hole type. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Mineral Resources are reported within an optimised pit shell generated by Matrix from parameters supplied by Auric. This approach is appropriate for providing estimates with reasonable prospects for eventual economic extraction in accordance with JORC 2012 guidelines. The optimal pit shell (resource pit) extends over around 650m of strike with a maximum width of 300m and reaches a maximum depth of around 150m (Figures 2 and 3). Cross sectional views of drill hole grades and estimated panel grades relative to the resource pit are shown in Figures 2 and 3. Figure 2. Cross section 360390mE – Showing drill hole grade ranges and estimated panel grades relative to resource pit shell. Panels scaled by proportion above 0.50 g/t cut off and coloured by the grade above that cut-off. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Figure 3. Cross section 360470mE – Showing drill hole grade ranges and estimated panel grades relative to resource pit shell. Panels scaled by proportion above 0.50 g/t cut off and coloured by the grade above that cut-off. Geology and Geological Interpretation The Munda gold deposit is hosted predominantly within basalts and to a lesser extent in overlying ultramafic flows. Gold mineralisation, even at very high grades is quite inconspicuous in hand specimen, with subtle albite and quartz alteration and only rare sulphide minerals except where nickel mineralisation is present. The distribution of gold mineralisation is interpreted to be controlled by the intersection of a south-easterly dipping fault or shear and layering in the basalts and ultramafics subparallel to the basalt-ultramafic contact. Drilling Database The drilling database informing the estimates comprises information from drilling completed by previous tenement holders between 1967 and 2024 including Anaconda, WMC, Resolute, Estrella, Titan, Widgie Nickel and Auric Mining. WMC's RC and diamond drilling provides the largest proportion of this drilling (Table 3). Resource drilling tests the currently defined Munda mineralisation over around 940m of east west strike to around 45m depth but is particularly sparse below approximately 230m depth below natural surface. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Table 3. Drill hole database compiled by company and hole type Group Phase Resource Anaconda 1967-75 WMC 1995-99 Resolute 1999-2000 Eureka 2016 Estrella 2019 Titan 2005-06 Widgie Nickel 2021-23 Auric 2021-22 Subtotal Central Southern Subtotal Total Infill (Auric 202324) Subtotal Auric Total 1 Number 241 35 15 36 16 55 398 355 6 361 416 759 RC Metres 21,811.0 1,893.0 1,177.0 4,125.0 2,939.0 6,780.0 38,725.0 11,156.0 145.0 11,301.0 18,081.0 50,026.0 Diamond1 Number Metres 41 5,825.3 57 10,921.2 2 243.9 2 321.3 26 6,917.8 16 6,001.4 144 30,230.9 144 30,230.9 Total Number Metres 41 5,825.3 298 32,732.2 37 2,136.9 15 1,177.0 2 321.3 62 11,042.8 32 8,940.4 55 6,780.0 542 68,955.9 355 11,156.0 6 145.0 361 11,301.0 416 18,081.0 903 80,256.9 Widgie Nickel diamond drilling includes RC pre-collars. From that database, the resource modelling utilised a mineralised domain interpreted by Matrix which captures two metre down-hole composites from RC and diamond drilling with gold grades of generally greater than 0.1 g/t. WMC drill holes contributed around 40% of the dataset informing resources while Titan and Auric drill holes contributed around 11% and 41% respectively. The estimation dataset is dominated by samples from RC drilling with diamond drilling contributing around 8%. Sampling and Sub-sampling Techniques No details of sampling techniques are available for Anaconda’s diamond drilling or WMC’s RC drilling. Sampling and assaying of the other significant drilling phases employed industry standard methods, as follows: A small proportion of the core drilled by WMC is in storage and accessible. The core is NQ in diameter, has been sampled over nominally 1m intervals and has been sawn with mostly half core removed. Sample intervals are generally well marked. For Resolute’s drilling, RC and diamond core samples were generally collected over 1m down-hole intervals by riffle-splitting, or halving with a diamond saw respectively and submitted to Kal Assay Laboratory for gold analysis by aqua regia digest with AAS determination. For Titan’s drilling, 1m riffle split RC samples were submitted for analysis as individual samples or 4 m down-hole composites, and half or quarter core samples were collected over generally 1 m intervals. The samples were assayed by ALS or Genalysis for gold by fire assay. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Estrella drilled two HQ diameter diamond holes. Holes were sampled over nominal 1m lengths with half or quarter, generally sawn core submitted for assay. Auric sampled RC holes at 1m intervals via a rig-mounted cyclone and fixed-cone splitter. The individual samples, typically weighing between 2.5kg and 3.5kg were submitted for assay. Sample Analysis Methods The assay methodology used by WMC is not recorded. Resolute and Estrella sample aliquots of 25g or 50g were assayed via an aqua regia digest with gold concentrations determined by AAS or ICP-MS. Titan and Auric utilised a 50g fire assay with gold concentrations for Titan and Auric samples determined by ICP-OES or ICP_AES. QA Procedures and QC Data Prior to Auric’s infill drilling program, approximately half (57%) of the sample intervals represented in the resource database had no associated qualifying data, that is, no record of QA procedures or QC data. The remainder have at least some associated QC data; duplicate assaying and/or sample standards. There is a significant spatial overlap between the data which have qualifying information and those that do not. Based on analysis of the univariate and spatial statistical properties of the qualified and unqualified data, it is considered reasonable to use the combined qualified and unqualified drill hole data to generate qualified estimates of Mineral Resources. Resource Modelling Munda gold Mineral Resources were estimated by Multiple Indicator Kriging (“MIK”) with block support correction to reflect open pit mining selectivity, a method that has been demonstrated to provide reliable estimates of resources recoverable by open pit mining for a wide range of mineralisation styles. The estimates are based on 2 m down-hole composited gold assay grades from RC and diamond drilling by Auric and previous tenement holders, including 10 by 10 m infill drilling undertaken by Auric. Mineral Resources are primarily informed by information from RC drilling with diamond providing around 8% of mineralised domain composites within the pit shell constraining Mineral Resources. Micromine software was used for data compilation, domain wire framing and coding of composite values and GS3M was used for resource estimation. The resulting estimates were imported into Micromine for pit optimisation and resource reporting. The estimation methodology is appropriate for the mineralisation style. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 The MIK modelling utilised a northerly dipping mineralised domain capturing composites with gold grades of greater than 0.1 g/t which extends over around 940 m of strike with an average horizontal width of around 120 m. Wire-framed surfaces representing the base of oxidation and top of fresh rock and contact between ultramafic and mafic rocks interpreted by Auric geologists from drill hole logging were used for density assignment. Within the mineralised area, the base of complete oxidation averages around 4 m depth with fresh rock occurring at an average depth of around 16 m. Grade continuity was characterised by indicator variograms modelled at 14 indicator thresholds. The modelled variograms are consistent with geological interpretations and trends shown by composite gold grades. For estimation, search ellipsoids and variograms were aligned with local mineralisation trends defined by three zones of consistent orientation. Class grades used for MIK modelling were derived from class mean grades with the exception of the upper bin grades which, for the mineralised domain were determined by oxidation zone and selected from either the bin median (oxide zone) or bin mean excluding small number of outlier composites (transitional and fresh zones). Bulk densities of 2.20 and 2.50 t/bcm were assigned to oxidised and transitional zones respectively, with densities of 2.93 and 2.83 t/bcm allocated to fresh mafic and ultramafic respectively. The densities assigned to transitional and fresh material reflect immersion density measurements of diamond core. The density assigned to oxidised mineralisation, which provides around 0.6% of Mineral Resources is consistent with Matrix’s experience of similar mineralisation. The estimates include a variance adjustment to give estimates of recoverable resources above gold cut-off grades for open pit mining selectivity of around 5 by 5 by 2.5 m. In Matrix’s experience, the Mineral Resource estimates can be reasonably expected to provide appropriately reliable estimates of potential mining outcomes at the assumed selectivity without application of additional mining dilution or mining recovery factors. Mineral Resource Classification Estimates for mineralisation tested by drilling spaced at around 20 m and closer are classified as Indicated. Estimates for more broadly sampled mineralisation, extrapolated up to generally around 30 m from general drilling areas are classified as Inferred. To provide estimates with reasonable prospects of eventual economic extraction, Mineral Resources are reported within an optimal pit shell generated at a gold price of $AUD3,200/oz which extends over around 650 m of strike to a maximum depth of around 150 m. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Cut-off Grades Gold mineralisation at Munda is widely disseminated with higher-grade pockets within a broad halo of lower grade mineralisation. This style is most appropriate to potential development via open pit mining. The resources have been estimated for a range of cut-off grades (Table 1) which are considered appropriate in terms of the ‘reasonable prospects of eventual economic extraction’ criterion for JORC 2012 compliance. Mining and Metallurgical Factors A model for the base of oxidation and top of fresh rock was developed utilising the resource drill holes where appropriate data was available and validated using the 10m x 10m infill drill holes. This was used in the subdivision of the data into oxidised, transitional and fresh rock subdomains for the current estimate of resources. Bottle roll testwork on samples by Titan in 2006, and by Auric in 2020 returned average recoveries of 96.5% and 92% respectively. A fresh rock composite sample submitted by Auric in 2022 for gravity separation and cyanide leaching reported gold extraction of 96.6% after 24 hours. Recent testwork on both oxide/transitional and fresh rock composites representing the principal lithologies identified a refractory gold component in fresh mafics with recoveries ranging from 82.1% under standard cyanide concentrations to 96.8%. Follow-up intense cyanide leaching (LeachWELL method) of 26 fresh mafic samples including the samples used to make up the metallurgical testwork samples provided recoveries ranging from 79.8% to 97.4% and averaged 92.0%. Whist encouraging, the overall recovery will be best determined via a starter pit. COMPETENT PERSONS STATEMENTS The information in this announcement that relates to information informing Mineral Resources is based on and fairly represents information and supporting documentation compiled by Mr John Utley, who is a full-time employee of Auric Mining Limited. Mr Utley is a Competent Person and a member of the Australian Institute of Geoscientists. Mr Utley has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken 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’. Mr Utley consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 The information in this announcement that relates to Mineral Resource estimation is based on information compiled by Mr Jonathon Abbott, who is a Member of The Australian Institute of Geoscientists. Mr Abbott is a director of Matrix Resource Consultants Pty Ltd and has sufficient experience which 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 Exploration Results, Mineral Resources and Ore Reserves”. Mr Abbott consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. FORWARD LOOKING STATEMENTS This Announcement may contain forward-looking statements which are identified by words such as ‘may’, ‘could’, ‘should’, ‘believes’, ‘estimates’, ‘targets’, ‘expecting’, or ‘intends’ and other similar words that involve risks and uncertainties. These statements are based on an assessment of present economic and operating conditions, and on a number of assumptions regarding future events and actions that, as at the date of this Announcement, are considered reasonable. Such forward-looking statements are not a guarantee of future performance and involve known and unknown risks, uncertainties, assumptions, and other important factors, many of which are beyond the control of the Company, the Directors, and the management. The Directors cannot and do not give any assurance that the results, performance, or achievements expressed or implied by the forward-looking statements contained in this Announcement will actually occur and investors are cautioned not to place undue reliance on these forward-looking statements. This announcement has been approved for release by the Board of Auric Mining Ltd. Corporate Enquiries Investor Relations Mark English Managing Director Auric Mining Limited Alex Cowie Director NWR Communications T +61 409 372 775 E menglish@auricmining.com.au T +61 412 952 610 E alexc@nwrcommunications.com.au Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 Follow our communications Click here to subscribe to our updates info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 Appendix A Munda JORC Table 1 checklist Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections) 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. • There are 903 drill holes in the Munda resource database comprising 759 RC holes and 144 diamond drill holes for 80,257m, including 361 infill RC holes for 11,156m drilled on a 10m x 10m pattern in 2023-24. Most of the holes relevant to resource estimation were drilled between 1995 and 2024 but with some resampling by WMC in 1995 of earlier diamond drill core. The resultant drill pattern is a nominal 20m x 20m pattern in central, shallow portions of the deposit to considerably broader in peripheral areas and at depth. The holes were drilled by the following companies, in sequence from earliest to most recent: • Anaconda 1967-1975 – Diamond drill holes where gold was assayed, were sampled at intervals of between 0.15m and 3m, averaging 1m. There are no records as to core sampling techniques including what portion of core was submitted for assay and how split. • Western Mining Corp – 1995-1999; RC holes were sampled at 1m intervals there are no records as to RC sampling techniques. Diamond drill holes were continuously sampled at 1m or shorter intervals – there are no records as to core sampling techniques including what portion of core was submitted for assay and how split. • Resolute Mining – 1999-2000; RC samples were collected via a cyclone at 1m intervals and riffle split to 2-3kg subsamples for lab submission. Diamond core was NQ2 diameter and was half cored using a diamond saw with 1m sample lengths predominant but selective sampling Auric Mining Limited ACN 635 470 843 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 10 DECEMBER 2024 from 0.2m to 1.2m lengths • Titan Resources – 2005-2006; RC samples were collected at 1m intervals via a cyclone and riffle split 75:25. Composite 4m samples were speared and 1m splits were submitted to the lab at the geologist’s discretion. Any composites returning >0.3g/t were resampled at 1m intervals. Diamond core was cut and half core or quarter core submitted for assay. Core sample lengths were predominantly 1m but ranged from 0.1m to 1.6m • Consolidated Nickel – 2006-2007; A single diamond hole was drilled with 1m samples submitted for assay. The Titan Resources sampling procedures appear to have been utilized. • Estrella – 2019; Two diamond holes drilled, both in HQ diameter. Sample lengths predominantly 1m length but ranged from 0.25m to 3m (in zone of poor recovery). Core split when highly weathered and cut when firmer – quarter and half core samples submitted to lab. • Auric Mining – 2021; 39 RC holes (55 RC holes in broader Munda area). RC samples collected at 1m intervals via a cyclone and riffle splitter and 2.53kg sample submitted to laboratory Drilling techniques Drill sample recovery Auric Mining Limited ACN 635 470 843 • 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). • Method of recording and assessing core and chip sample recoveries and results assessed. • Measures taken to maximize sample recovery and ensure representative nature of the samples. • Whether a relationship exists between sample recovery and grade and whether sample Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 • All RC drilling by face-sampling hammer. Core diameter where recorded was NQ or HQ. Titan Resources and Estrella oriented drill core but orientation tool not specified. There is no record by earlier companies if core oriented • No records remain for core and chip sample recoveries prior to Estrella’s 2019 diamond drill holes. Core recoveries for the two Estrella drill holes averaged 91% • Auric RC samples weighed at laboratory and weights reported. Duplicate samples taken after every 15 samples and weights also reported • There is no relationship between info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE Logging • • • Subsampling techniques and sample preparatio n • • • • • • Quality of assay data and laboratory tests • • Auric Mining Limited ACN 635 470 843 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 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 Level 1, 1 Tully Road, East Perth WA 6004 PO Box 1057, Joondalup DC WA 6919 10 DECEMBER 2024 sample recovery and grade and no sample bias • All core and chips were geologically logged. Only rock type is captured in the database for holes drilled till 2000. More detailed features are captured from 2006 – this is sufficient to support mineral resource estimation. • Geotechnical logging is acknowledged in reports but no geotechnical logs have been located. Geotechnical drilling to determine pit wall parameters is required • There is no record of sub-sampling techniques for drilling prior to 1999. • From 1999, RC samples were reduced to 2-3kg subsamples using a riffle splitter or, spear sampling where 4m composites were taken. Those composite samples that returned significant assays were resampled at 1m intervals using a riffle splitter • From 1999, diamond core was sawn except where very weathered when core was split. Half or quarter core was submitted for assay. • Auric submitted duplicate samples at ratio 1 in 15 samples. These 242 sample duplicates showed a sampling precision of +/-30% which is reasonable for RC sampling • Western Mining Corp – 1995-1998; There is no record as to assay method or the lab used. • Resolute Mining – 1999-2000; RC and diamond sample were assayed by aqua regia digest and AAS finish at Kal Assay Laboratory in Kalgoorlie. Duplicate assays were reported. • Titan Resources – 2005-2006; RC and info@auricmining.com.au 08 9548 9997 auricmining.com.au ASX: AWJ ANNOUNCEMENT TO THE AUSTRALIAN STOCK EXCHANGE 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 che