ASX RELEASE 14 NOVEMBER 2023 FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION HIGHLIGHTS • First geochemical assay results received for RC holes MTRC001 and MTRC002 at Mulga Tank • Results highlight broad zones of nickel sulphide mineralisation - elevated Ni and S coincident with highly anomalous Cu and PGE: MTRC001 162m at 0.20% Ni, 123ppm Co, 81ppm Cu, 19ppb Pt+Pd from 95m 29m at 0.42% Ni, 138ppm Co, 85ppm Cu, 17ppb Pt+Pd from 344m 62m at 0.25% Ni, 136ppm Co, 61ppm Cu, 53ppb Pt+Pd from 382m MTRC002 29m at 0.24% Ni, 141ppm Co, 103ppm Cu, 23ppb Pt+Pd from 97m 19m at 0.28% Ni, 112ppm Co, 9ppm Cu, 30ppb Pt+Pd from 182m 63m at 0.35% Ni, 141ppm Co, 71ppm Cu, 46ppb Pt+Pd from 226m inc. 23m at 0.44% Ni, 154ppm Co, 118ppm Cu, 70ppb Pt+Pd from 236m and inc. 9m at 0.43% Ni, 131ppm Co, 18ppm Cu, 34ppm Pt+Pd from 272m • Geochemical characterisation shows high MgO adcumulate dunite averaging MTRC001 48.3% MgO, 0.16% Al2O3 and MTRC002 46.5% MgO, 0.20% Al2O3 (volatile free) • With cumulative 50-60% of the samples from both holes showing mineralisation the results confirm the RC drilling program is so far successful in testing the continuity of the uppermost zone of mineralisation seen in the Company’s diamond drilling results Western Mines Group Ltd (WMG or Company) (ASX:WMG) is pleased to update shareholders on geochemical assay results recently received for reverse circulation (RC) drill holes MTRC001 and MTRC002 at the Mulga Tank Ni-Cu-Co-PGE Project, on the Minigwal Greenstone Belt, in Western Australia’s Eastern Goldfields. WMG completed a 22 hole RC drilling program (totalling 7,035.5m) designed to systematically test the extent of the uppermost zone of shallow disseminated nickel sulphide mineralisation observed in the Company’s diamond core holes across the centre of the Mulga Tank Ultramafic Complex (ASX, Completion of 7000m RC Drilling Program at Mulga Tank, 7 November 2023). First assay results have now been received for holes MTRC001 and MTRC002 which highlight broad intersections of nickel sulphide mineralisation. Cumulatively around 50-60% of the samples from both of the holes appear to show mineralisation with elevated Ni and S, in combination with highly anomalous Cu and PGE. These results confirm the drilling was successful in targeting the uppermost zone of shallow mineralisation and bodes well for the results from the remainder of the program. Western Mines Group Ltd Level 3, 33 Ord Street West Perth WA 6005 ASX:WMG Telephone: +61 475 116 798 Email: contact@westernmines.com.au www.westernmines.com.au Shares on Issue: 66.71m Share Price: $0.285 Market Cap: $19.01m Cash: $3.07m (31/10/23) 1 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION Numerous intervals of interpreted nickel sulphide mineralisation based on geochemical signature were identified down the holes including: MTRC001 162m at 0.20% Ni, 123ppm Co, 81ppm Cu, 19ppb Pt+Pd from 95m 29m at 0.42% Ni, 138ppm Co, 85ppm Cu, 17ppb Pt+Pd from 344m 62m at 0.25% Ni, 136ppm Co, 61ppm Cu, 53ppb Pt+Pd from 382m Cumulative 253m at 0.24% Ni, 128ppm Co, 76ppm Cu, 27ppb Pt+Pd with S:Ni 1.4 MTRC002 29m at 0.24% Ni, 141ppm Co, 103ppm Cu, 23ppb Pt+Pd from 97m 19m at 0.28% Ni, 112ppm Co, 9ppm Cu, 30ppb Pt+Pd from 182m 63m at 0.35% Ni, 141ppm Co, 71ppm Cu, 46ppb Pt+Pd from 226m inc. 23m at 0.44% Ni, 154ppm Co, 118ppm Cu, 70ppb Pt+Pd from 236m and inc. 9m at 0.43% Ni, 131ppm Co, 18ppm Cu, 34ppb Pt+Pd from 272m Cumulative 111m at 0.31% Ni, 136ppm Co, 69ppm Cu, 37ppb Pt+Pd with S:Ni 0.7 Commenting on the first RC assay results, WMG Managing Director Dr Caedmon Marriott said: “Its great to see the first results from the RC program starting to come through. We sent just over 5,700 samples to the lab and we should see a steady flow of results over the next month or two. The 22 hole RC program targeted a significant portion of the main body of the Complex, covering an area of approximately 2.5km x 1km in which we’d previously only drilled four diamond holes. The RC drilling dramatically increases the drilling density in this ‘core’ of the Complex and will yield extremely valuable data in testing the lateral continuity of shallow disseminated mineralisation, as well as beginning to systematically characterise the geology and geochemistry of the system. The results from these first two holes show the concept of testing the uppermost zone of shallow mineralisation is working with broad zones of mineralisation identified in both holes. Around 50-60% of the samples from both holes showed the geochemical signature of mineralisation. These are positive initial results as the program looks to test a volume of some 650,000,000 cubic metres which could host significant nickel in sulphide - and hole MTRC001 was located in the southwestern corner of the area drilled so mineralisation is likely not constrained to this initial area.” MULGA TANK RC DRILLING PROGRAM WMG has been undertaking continuous drilling programs at the Mulga Tank Project since November 2022, with exciting exploration results demonstrating significant nickel sulphide mineralisation and an extensive nickel sulphide mineral system within the Mulga Tank Ultramafic Complex (ASX, MTD023 Assays Confirm Discovery of Significant Nickel Sulphide System, 5 April 2023; MTD026 Assays - 840m of Nickel Sulphide Mineralisation, 30 August 2023; MTD027 Expands Mineralisation 4km Across Mulga Tank, 28 August 2023). The Company recently completed a 22 hole RC drilling program designed to systematically test the lateral continuity of the shallow, uppermost zone of disseminated nickel sulphide mineralisation observed in the Company’s diamond holes MTD012, MTD022, MTD023, MTD026, MTD027 and MTD028 within the main body of the Mulga Tank Ultramafic Complex (ASX, Completion of 7000m RC Drilling Program at Mulga Tank, 7 November 2023) (Figure 7). ASX:WMG www.westernmines.com.au 2 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION The holes were spaced at approximately 500m x 300m and cover a 2,500m x 1,000m area across the centre of the Complex. Each hole was designed to a target depth of ~300m, which was achieved in all but three holes, for a total of 7,035.5mm - of which the top ~60m of each hole, or 1,321m in total, was mud-rotary drilling through the sand cover. All holes were sampled at 1m intervals from the start of RC drilling (i.e. base of mud rotary) with a total of 5,721 samples delivered to the ALS laboratory in Perth for geochemical assay. HIGH MGO ADCUMULATE DUNITE Assay results for MTRC001 averaged 48.3% MgO and 0.16% Al2O3 (volatile free) over the 374m ultramafic portion of the hole, whilst MTRC002 averaged 46.5% MgO and 0.20% Al2O3 (volatile free) over 222m of ultramafic. Using Al2O3 as a proxy for interstitial material and MgO as a proxy for temperature, geochemical characterisation shows the host rock to be nearly entirely high-temperature, adcumulate to extremely adcumulate dunite with Al2O3 generally less than 0.5% and MgO greater than 40%. Figure 1: MTRC001 MgO and Al2O3 (volatile free) Figure 2: MTRC002 MgO and Al2O3 (volatile free) This observation of extensive intersections of high MgO adcumulate dunite within the complex, starting essentially immediately under the sand cover, has positive implications for the targeting of large volume, low grade Type 2 Mt-Keith style disseminated nickel sulphide deposits within the Mulga Tank Complex. ASX:WMG www.westernmines.com.au 3 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION EVIDENCE FOR NICKEL SULPHIDE MINERALISATION Broad intersections of visible disseminated nickel sulphide mineralisation have frequently been observed in the Company’s diamond core drilling. This style on mineralisation is harder to see in RC drill chips but intersections of visual mineralisation were observed in the geological logging of a number of the RC holes e.g. MTRC009 where ~390m of disseminated sulphide was observed down the hole. The geochemical assay results for holes MTRC001 and MTRC002 show the geochemical signature of nickel sulphide mineralisation and demonstrate significant evidence for “live” magmatic sulphide chemical processes. In the absence of magmatic sulphide processes nickel is incorporated into olivine during crystallisation and essentially trapped within the dunite host rock. Whereas, in “live” sulphur saturated mineral systems the nickel will partition into potentially “recoverable” nickel sulphide form. A number of elements, such as Cu and in particular PGE’s (Pt and Pd), have high affinity for sulphide (chalcophile), and in combination with S (and the S:Ni ratio) are used as geochemical indicators to confirm the presence of active magmatic sulphide processes. The assay results for MTDRC001 and MTRC002 demonstrate a number of broad zones of highly anomalous Cu and PGE’s in combination with elevated S, and a S:Ni ratio greater than 0.5 (Figures 3 to 6). Figure 3: MTRC001 Cu and Pt+Pd Figure 4: MTRC001 S:Ni Ratio ASX:WMG www.westernmines.com.au 4 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION Figure 5: MTRC002 Cu and Pt+Pd Figure 6: MTRC002 S:Ni Ratio These anomalous zones provide strong evidence for nickel sulphide mineralisation and were generally defined by a combination of the various geochemical indicators and cut-off grades (Ni >0.16%, Cu >20ppm, Pt+Pd >20ppb, S >0.1% and S:Ni >0.5), with only minimal inclusion of unmineralised material below mineable width. The broad mineralised intersections defined were: MTRC001 162m at 0.20% Ni, 123ppm Co, 81ppm Cu, 19ppb Pt+Pd from 95m 29m at 0.42% Ni, 138ppm Co, 85ppm Cu, 17ppb Pt+Pd from 344m 62m at 0.25% Ni, 136ppm Co, 61ppm Cu, 53ppb Pt+Pd from 382m Cumulative 253m at 0.24% Ni, 128ppm Co, 76ppm Cu, 27ppb Pt+Pd with S:Ni 1.4 MTRC002 29m at 0.24% Ni, 141ppm Co, 103ppm Cu, 23ppb Pt+Pd from 97m 19m at 0.28% Ni, 112ppm Co, 9ppm Cu, 30ppb Pt+Pd from 182m 63m at 0.35% Ni, 141ppm Co, 71ppm Cu, 46ppb Pt+Pd from 226m inc. 23m at 0.44% Ni, 154ppm Co, 118ppm Cu, 70ppb Pt+Pd from 236m and inc. 9m at 0.43% Ni, 131ppm Co, 18ppm Cu, 34ppb Pt+Pd from 272m Cumulative 111m at 0.31% Ni, 136ppm Co, 69ppm Cu, 37ppb Pt+Pd with S:Ni 0.7 ASX:WMG www.westernmines.com.au 5 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION DISCUSSION WMG’s RC program is the first systematic drilling of the Mulga Tank Ultramafic Complex and targets a volume of approximately 650,000,000 cubic metres in the centre of the main body (assuming ~320m average drill hole depth and ~60m sand cover). The drilling aims to test the lateral continuity of the shallow, uppermost zone of disseminated nickel sulphide mineralisation observed in the Company’s diamond holes MTD012, MTD022, MTD023, MTD026, MTD027 and MTD028 (Figure 7). The results from this RC drilling should offer a step change in the understanding of the geology and geochemistry of the Complex and its potential to host a significant disseminated nickel sulphide deposit amenable to large scale open-pit mining. Approximate zone tested by RC drilling Figure 7: Cross-section through the Mulga Tank Complex showing approximate zone tested by RC drilling The results from these first two holes are very positive and demonstrate the continuity of this uppermost zone of shallow mineralisation, with numerous broad intervals of interpreted nickel sulphide mineralisation identified in the holes. Around 50-60% of the samples from both holes showed the geochemical signature of nickel sulphide mineralisation with elevated Ni and S, in combination with highly anomalous chalcophile elements Cu and PGE. Holes MTRC001 and MTRC002 are located towards the fringe, in the southwestern corner, of the main area being tested and extend the current zone of known mineralisation (Figure 8). Hole MTRC001 located right on the edge of the drilled area highlights that mineralisation is not in anyway limited to the zone being tested and very likely extends outside this initial area. It is hoped these results bode well for the remainder of the program given that significant visible mineralisation has been observed in the likes of hole MTRC009 in the centre of the drilling. The Company continues to believe this central area of the main body of the Mulga Tank Complex could host globally significant quantities of disseminated Mt Keith-style nickel sulphide mineralisation which could be amenable to large scale, open-pit mining operation. ASX:WMG www.westernmines.com.au 6 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION Figure 8: Assay results for shallow nickel sulphide mineralisation in the Mulga Tank Ultramafic Complex The Company looks forward to regularly updating shareholders on the assay results from the RC drilling program as they become available. For further information please contact: Dr Caedmon Marriott Managing Director Tel: +61 475 116 798 Email: contact@westernmines.com.au This announcement has been authorised for release to the ASX by Dr Caedmon Marriott, Managing Director ASX:WMG www.westernmines.com.au 7 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION APPENDIX HoleID From (m) To (m) Interval (m) Ni (%) Co (ppm) Cu (ppm) Pt + Pd (ppb) MTRC001 95 257 162 0.20 123 81 19 MTRC001 344 373 29 0.42 138 86 17 MTRC001 382 444 62 0.25 136 61 53 MTRC002 97 126 29 0.24 141 23 21 MTRC002 182 201 19 0.28 112 65 44 MTRC002 226 inc. 236 and inc. 272 289 259 281 63 23 9 0.35 0.44 0.43 141 154 131 71 118 18 46 70 34 Table 1: Holes MTRC001 and MTRC002 significant intersections HoleID Easting (MGA51) Northing (MGA51) Total Depth (m) Azimuth Dip MTRC001 519403 6688703 444 261 -65 MTRC002 519906 6688994 300 275 -70 Table 2: Collar details for holes MTRC001 and MTRC002 ASX:WMG www.westernmines.com.au 8 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION ABOUT WMG Western Mines Group Ltd Western Mines Group Ltd (ASX:WMG) is a mineral exploration company driven by the goal ACN 640 738 834 Level 3, 33 Ord Street West Perth WA 6005 to create significant investment returns for our shareholders through exploration and discovery of high-value gold and nickel sulphide deposits across a portfolio of highlyprospective projects located on major mineral belts of Western Australia. Our flagship project and current primary focus is the Mulga Tank Ni-Cu-PGE Project, a Board Rex Turkington Non-Executive Chairman Dr Caedmon Marriott Managing Director major ultramafic complex found on the under-explored Minigwal Greenstone Belt. Exploration results show significant evidence for an extensive working nickel sulphide mineral system and is considered highly prospective for Ni-Cu-PGE mineralisation. The Company’s primary gold project is Jasper Hill, where WMG has strategically Francesco Cannavo Non-Executive Director consolidated a 3km mineralised gold trend with walk-up drill targets. WMG has a diversified Dr Benjamin Grguric Technical Director Leonora in the heart of the WA Goldfields; Youanmi (Au), Pavarotti (Ni-Cu-PGE), Rock of Capital Structure Shares: 66.71m Options: 21.12m Share Price: $0.285 Market Cap: $19.01m Cash (31/10/23): $3.07m Follow us portfolio of other projects including Melita (Au, Cu-Pb-Zn), midway between Kookynie and Ages (Au), Broken Hill Bore (Au) and Pinyalling (Au, Cu, Li). COMPETENT PERSONS STATEMENT The information in this announcement that relates to Exploration Results and other technical information complies with the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code) and has been compiled and assessed under the supervision of Dr Caedmon Marriott, Managing Director of Western Mines Group Ltd. Caedmon is a Member of the Australian Institute of @westernmines Geoscientists, a Member of the Society of Economic Geologists and a Member of the westernmines Australasian Institute of Mining and Metallurgy. He has sufficient experience that is relevant Western Mines Group 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 JORC Code. Caedmon consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears. DISCLAIMER Some of the statements appearing in this announcement may be in the nature of forward looking statements. You should be aware that such statements are only predictions and are subject to inherent risks and uncertainties. Those risks and uncertainties include factors and risks specific to the industries in which WMG operates and proposes to operate as well as general economic conditions, prevailing exchange rates and interest rates and conditions in the financial markets, among other things. Actual events or results may differ materially from the events or results expressed or implied in any forward looking statement. No forward looking statement is a guarantee or representation as to future performance or any other future matters, which will be influenced by a number of factors and subject to various uncertainties and contingencies, many of which will be outside WMG’s control. WMG does not undertake any obligation to update publicly or release any revisions to these forward looking statements to reflect events or circumstances after today's date or to reflect the occurrence of unanticipated events. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions or conclusions contained in this announcement. To the maximum extent permitted by law, none of WMG, its Directors, employees, advisors or agents, nor any other person, accepts any liability for any loss arising from the use of the information contained in this announcement. You are cautioned not to place undue reliance on any forward looking statement. The forward looking statements in this announcement reflect views held only as at the date of this announcement. ASX:WMG www.westernmines.com.au 9 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION MULGA TANK PROJECT JORC CODE, 2012 EDITION - TABLE 1 SECTION 1: SAMPLING TECHNIQUES AND DATA Criteria Sampling techniques Drilling techniques Drill sample recovery ASX:WMG JORC Code explanation Commentary • Nature and quality of sampling (eg cut channels, • Reverse circulation (RC) drilling was completed random chips, or specific specialised industry using standard industry best practice standard measurement tools appropriate to the • Individual 1m samples were collected directly minerals under investigation, such as down hole from the rig sampling system. Samples were gamma sondes, or handheld XRF instruments, etc). crushed and pulverised to produce a subThese examples should not be taken as limiting the sample for analysis by either multi-element broad meaning of sampling. ICP-AES (ME-ICP61 and ME-ICP41), precious metals fire assay (Au-AA25 or PGM-ICP23) • Include reference to measures taken to ensure sample representivity and the appropriate calibration and loss on ignition at 1,000°C (ME-GRA05) 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, open-hole • Reverse circulation percussion drilling rig with hammer, rotary air blast, auger, Bangka, sonic, etc) a 5.25inch face sampling bit 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 • Standard drilling techniques using “best sample recoveries and results assessed. practice” to maximise sample recovery Measures taken to maximise sample recovery and • • Information not available to assess relationship ensure representative nature of the samples. between sample recovery and grade 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. www.westernmines.com.au 10 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION Criteria Logging Sub-sampling techniques and sample preparation JORC Code explanation Commentary • Whether core and chip samples have been • Drill holes geologically logged on a metre basis geologically and geotechnically logged to a level of • Logging is to a level of detail sufficient to detail to support appropriate Mineral Resource support a Mineral Resource estimation, estimation, mining studies and metallurgical studies. though further information would be required Whether logging is qualitative or quantitative in • • Logging is qualitative in nature and recorded nature. Core (or costean, channel, etc) photography. l i t h o l o g y, m i n e r a l o g y, m i n e r a l i s a t i o n , weathering, colour, and other features of the • The total length and percentage of the relevant samples. Chip trays were photographed in intersections logged. both dry and wet form • Drillhole was logged in full, apart from rock rolled pre-collar intervals • If core, whether cut or sawn and whether quarter, half • Individual 1m samples were collected directly or all core taken. from the rig sampling system. Samples were crushed and pulverised to produce a sub• If non-core, whether riffled, tube sampled, rotary split, sample for analysis by either multi-element etc and whether sampled wet or dry. ICP-AES (ME-ICP61 and ME-ICP41), precious • For all sample types, the nature, quality and metals fire assay (Au-AA25 or PGM-ICP23) appropriateness of the sample preparation technique. and loss on ignition at 1,000°C (ME-GRA05) • Quality control procedures adopted for all subsampling stages to maximise representivity of • Majority of samples were dry however some ground water was encountered and some samples. samples were taken wet • Measures taken to ensure that the sampling is Industry standard sample preparation representative of the in-situ material collected, • techniques were undertaken and considered including for instance results for field duplicate/ appropriate for the sample type and material second-half sampling. sampled • Whether sample sizes are appropriate to the grain • The sample size is considered appropriate to size of the material being sampled. the grain size of the material being sampled • The nature, quality and appropriateness of the • Samples analysed by four-acid digest multiassaying and laboratory procedures used and element ICP-AES (ME-ICP61) or precious whether the technique is considered partial or total. metals fire assay (Au-AA25 or PGM-ICP23) are considered total or near total techniques • For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining • Samples analysed by aqua regia digest multiQuality of the analysis including instrument make and model, element ICP-AES (ME-ICP41) is considered a assay data reading times, calibrations factors applied and their partial technique of soluble sulphide and laboratory derivation, etc. • Standards, blanks and duplicate samples were tests introduced through-out the sample collection • Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory on a 1:20 ratio to ensure quality control checks) and whether acceptable levels of accuracy • ALS will also undertake duplicate analysis and (i.e. lack of bias) and precision have been established. run internal standards as part of their assay regime Verification of sampling and assaying ASX:WMG • The verification of significant intersections by either • Primary logging data was collected using independent or alternative company personnel. Ocris logging system on a laptop computer, • The use of twinned holes. • Significant reported assay results were verified by multiple alternative company personnel • Documentation of primary data, data entry procedures, data verification, data storage (physical • All logging and assay data was compiled into and electronic) protocols. a SQL database server • Discuss any adjustment to assay data. www.westernmines.com.au 11 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION Criteria Location of data points Data spacing and distribution JORC Code explanation Commentary • Accuracy and quality of surveys used to locate drill • Drill holes located using a handheld GPS with holes (collar and down-hole surveys), trenches, mine accuracy of +/-3m workings and other locations used in Mineral • Downhole surveys were performed at collar Resource estimation. and end of hole • Specification of the grid system used. • Coordinates are in GDA94 UTM Zone 51 • Quality and adequacy of topographic control. • Data spacing for reporting of Exploration Results. • The drilling completed was reconnaissance in nature designed to test specific geological • Whether the data spacing and distribution is sufficient targets for first pass exploration purposes only to establish the degree of geological and grade continuity appropriate for the Mineral Resource and O re R e s e r v e e s t i m a t i o n p ro c e d u re ( s ) a n d classifications applied. • Whether sample compositing has been applied. • Whether the orientation of sampling achieves • The drilling was planned to be approximately unbiased sampling of possible structures and the perpendicular to the interpreted stratigraphy extent to which this is known, considering the deposit and mineralisation Orientation of type. data in relation to geological • If the relationship between the drilling orientation and structure the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. Sample security Audits or reviews • The measures taken to ensure sample security. • Samples were delivered to the laboratory by company personnel • The results of any audits or reviews of sampling • No audits or reviews of drilling sampling techniques and data. techniques or data by external parties at this stage of exploration • An internal review of sampling techniques and data will be completed SECTION 2: REPORTING OF EXPLORATION RESULTS Criteria JORC Code explanation Commentary Mineral tenement and land tenure status • Type, reference name/number, location and • Tenement E39/2132, tenement applications ownership including agreements or material issues E39/2223 and E39/2299 with third parties such as joint ventures, partnerships, • Held 100% by Western Mines Group Ltd overriding royalties, native title interests, historical • 1% NSR to original tenement holder sites, wilderness or national park and environmental • Native Title Claim by Upurli Upurli Nguratja not settings. yet determined • The security of the tenure held at the time of reporting No known historical or environmentally • along with any known impediments to obtaining a sensitive areas within the tenement area licence to operate in the area. • Tenement is in good standing Exploration done by other parties • Acknowledgment and appraisal of exploration by • Previous exploration over the Mulga Tank other parties. project area by various companies dates back to the 1980s • Of these, more detailed exploration was completed by BHP Minerals Pty Ltd (1982– 1984), MPI Gold Pty Ltd (1995–1999), North Limited (1999–2000), King Eagle Resources Pty Ltd (2004–2012), and Impact (2013–2018) ASX:WMG www.westernmines.com.au 12 ASX RELEASE | FIRST RC ASSAYS SHOW BROAD ZONES OF MINERALISATION Criteria JORC Code explanation Commentary Geology • Deposit type, geological setting and style of • The geology of the project area is dominated mineralisation. b y t h e i r re g u l a r s h a p e d M u l g a Ta n k serpentinised metadunite intrusive body measuring ~5km x 5km, hosted within metasediments, mafic to felsic schists and foliated metagranite of the northwest trending Archean Minigwal Greenstone Belt • Previous drilling intersected disseminated and narrow zones of massive nickel-copper sulphide mineralisation within the dunite intrusion • The intrusion is concealed under variable thicknesses of cover (up to 70 m in places) with the interpretation of the bedrock geology based largely on aeromagnetic data and limited drilling Drill hole information • A summary of all information material to the • A listing of the drill hole information material to understanding of the exploration results including a the understanding of the exploration results tabulation of the following information for all Material provided in the body of this announcement drill holes: • The use of any data is recommended for indicative purposes only in terms of potential • easting and northing of the drill hole collar Ni-Cu-PGE mineralisation and for developing • elevation or RL (Reduced Level – elevation above exploration targets sea level in metres) of the drill hole collar • dip and azimuth of the hole • down hole length and interception depth hole length. 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. Data aggregation methods • In reporting Exploration