Announcement PDF ASX RELEASE 9 OCTOBER 2024 FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu HIGHLIGHTS • Geochemical assay results received for Phase 3 RC holes MTRC051 to MTRC055 at Mulga Tank • All holes show broad zones of nickel sulphide mineralisation - elevated Ni and S coincident with highly anomalous Cu and PGE: MTRC051 Cumulative 156m at 0.27% Ni, 133ppm Co, 212ppm Cu, 17ppb Pt+Pd with S:Ni 1.4* MTRC052 192m at 0.28% Ni, 125ppm Co, 63ppm Cu, 11ppb Pt+Pd from 114m S:Ni 0.8* MTRC053 205m at 0.28% Ni, 129ppm Co, 85ppm Cu, 16ppb Pt+Pd from 87 S:Ni 1.0* MTRC054 200m at 0.28% Ni, 124ppm Co, 31ppm Cu, 10ppb Pt+Pd from 100m S:Ni 0.6* MTRC055 216m at 0.30% Ni, 144ppm Co, 109ppm Cu, 20ppb Pt+Pd from 84m S:Ni 1.2* • Holes drilled to the south of previous drilling with some outside the area modelled in JORC Exploration Target - extending mineralisation in the south of the Mulga Tank Complex • All holes ended in mineralisation with shallow zones of higher grade mineralisation in some holes: MTRC051 3m at 0.70% Ni, 400ppm Co, 0.38% Cu, 0.17g/t Pt+Pd from 147m inc. 1m at 1.18% Ni, 650ppm Co, 0.67% Cu, 0.31g/t Pt+Pd from 148m MTRC053 21m at 0.37% Ni, 148ppm Co, 71ppm Cu, 43ppb Pt+Pd from 189m MTRC055 11m at 0.63% Ni, 211ppm Co, 535ppm Cu, 4ppb Pt+Pd from 175m inc. 4m at 1.16% Ni, 345ppm Co, 0.13% Cu, 6ppb Pt+Pd from 182m that inc. 2m at 1.97% Ni, 542ppm Co, 0.26% Cu, 12ppb Pt+Pd from 183m which inc. 1m at 2.46% Ni, 641ppm Co, 0.43% Cu, 18ppb Pt+Pd from 183m 7m at 0.48% Ni, 226ppm Co, 248ppm Cu, 42ppb Pt+Pd from 234m inc. 1m at 1.26% Ni, 489ppm Co, 431ppm Cu, 49ppb Pt+Pd from 239m • WMG continues to expand and de-risk a potentially globally significant, large-scale, open-pitable nickel sulphide deposit at Mulga Tank Western Mines Group Ltd (WMG or Company) (ASX:WMG) is pleased to update shareholders on geochemical assay results recently received for five Phase 3 reverse circulation (RC) drill holes at the Mulga Tank Project, on the Minigwal Greenstone Belt, in Western Australia’s Eastern Goldfields. Assay results have been received for holes MTRC051 to MTRC055, which were all drilled in new area in the southeastern part of the main body of the Mulga Tank Complex. Results from all five holes highlight broad intersections of nickel sulphide mineralisation, with all holes ending in mineralisation. The holes extend nickel sulphide mineralisation outside of previously known and tested zones within the Complex. 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: 85.15m Share Price: $0.24 Market Cap: $20.44m Cash: $2.13m (30/06/24) 1 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu Hole MTRC055 is of particular interest, that returned cumulative mineralisation of 216m at 0.30% Ni, 144ppm Co from 84m that included some shallow, higher-grade intervals of 11m at 0.63% Ni, 211ppm Co, 535ppm Cu from 175m, with 4m at 1.16% Ni, 345ppm Co, 0.13% Cu from 182m that included 1m at 2.46% Ni, 641ppm Co, 0.43% Cu from 183m. MTRC051 also returned a high-grade intersection of 1m at 1.18% Ni, 650ppm Co, 0.67% Cu, 0.31g/t Pd+Pt from 148m. Assay results have now been received for 16 of the 19 Phase 3 RC holes drilled to date, with all holes mineralised. The program is successful in its goals of infilling around previous drilling in the core of the Complex with holes MTRC040 to MTRC043 (ASX, Phase 3 RC Results Yield Broad Sulphide Mineralisation Zones, 13 September 2024) and extending mineralisation outside of previous tested zones, with results from recent hole MTRC046 showing the best high-grade intersection ever drilled at the project (ASX, MTRC046: Two High-Grade Zones inc. 5m at 1.92% Ni 0.21% Cu, 17 September) and holes MTRC047 to MTRC050 extending mineralisation (ASX, Phase 3 Assays Extend Known Mineralisation at Mulga Tank, 26 September 2024). These latest holes MTRC051 to MTRC055 again step out from previous drilling and extend known mineralisation with numerous intervals of logged disseminated nickel sulphide mineralisation coinciding with assay results showing elevated Ni and S, in combination with highly anomalous Cu and PGE, including: MTRC051 130m at 0.27% Ni, 136ppm Co, 252ppm Cu, 20ppb Pt+Pd from 113m inc. 9m at 0.38% Ni, 170ppm Co, 358ppm Cu, 34ppb Pt+Pd from 121m and inc. 3m at 0.70% Ni, 400ppm Co, 0.38% Cu, 0.17g/t Pt+Pd from 147m that inc. 1m at 1.18% Ni, 650ppm Co, 0.67% Cu, 0.31g/t Pt+Pd from 148m and inc. 3m at 0.32% Ni, 141ppm Co, 155ppm Cu, 13ppb Pt+Pd from 229m 26m at 0.28% Ni, 121ppm Co, 17ppm Cu, 2ppb Pt+Pd from 258m* inc. 6m at 0.32% Ni, 141ppm Co, 33ppm Cu, 6ppb Pt+Pd from 258m Cumulative 156m at 0.27% Ni, 133ppm Co, 212ppm Cu, 17ppb Pt+Pd with S:Ni 1.4* MTRC052 192m at 0.28% Ni, 125ppm Co, 63ppm Cu, 11ppb Pt+Pd from 114m S:Ni 0.8* inc. 4m at 0.46% Ni, 147ppm Co, 144ppm Cu, 53ppb Pt+Pd from 108m and inc. 5m at 0.32% Ni, 135ppm Co, 87ppm Cu, 5ppb Pt+Pd from 131m and inc. 7m at 0.32% Ni, 122ppm Co, 56ppm Cu, 5ppb Pt+Pd from 200m and inc. 15m at 0.32% Ni, 137ppm Co, 65ppm Cu, 3ppb Pt+Pd from 210m and inc. 3m at 0.47% Ni, 217ppm Co, 219ppm Cu, 0.15g/t Pt+Pd from 249m MTRC053 205m at 0.28% Ni, 129ppm Co, 85ppm Cu, 16ppb Pt+Pd from 87m S:Ni 1.0* inc. 8m at 0.32% Ni, 134ppm Co, 195ppm Cu, 14ppb Pt+Pd from 114m and inc. 3m at 0.35% Ni, 131ppm Co, 47ppm Cu, 24ppb Pt+Pd from 162m and inc. 2m at 0.36% Ni, 207ppm Co, 451ppm Cu, 35ppb Pt+Pd from 168m and inc. 21m at 0.37% Ni, 148ppm Co, 71ppm Cu, 43ppb Pt+Pd from 189m and inc. 9m at 0.34% Ni, 132ppm Co, 33ppm Cu, 5ppb Pt+Pd from 215m and inc. 4m at 0.35% Ni, 161ppm Co, 153ppm Cu, 29ppb Pt+Pd from 231m MTRC054 200m at 0.28% Ni, 124ppm Co, 31ppm Cu, 10ppb Pt+Pd from 100m S:Ni 0.6* inc. 11m at 0.34% Ni, 134ppm Co, 119ppm Cu, 48ppb Pt+Pd from 126m and inc. 2m at 0.41% Ni, 208ppm Co, 404ppm Cu, 64ppb Pt+Pd from 181m ASX:WMG www.westernmines.com.au 2 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu MTRC055 216m at 0.30% Ni, 144ppm Co, 109ppm Cu, 20ppb Pt+Pd from 84m S:Ni 1.2* inc. 3m at 0.46% Ni, 212ppm Co, 341ppm Cu, 75ppb Pt+Pd from 127m and inc. 11m at 0.63% Ni, 211ppm Co, 535ppm Cu, 4ppb Pt+Pd from 175m that inc. 4m at 1.16% Ni, 345ppm Co, 0.13% Cu, 6ppb Pt+Pd from 182m which inc. 1m at 2.46% Ni, 641ppm Co, 0.43% Cu, 18ppb Pt+Pd from 183m and inc. 6m at 0.51% Ni, 207ppm Co, 385ppm Cu, 52ppb Pt+Pd from 197m and inc. 10m at 0.38% Ni, 156ppm Co, 90ppm Cu, 60ppb Pt+Pd from 207m and inc. 4m at 0.44% Ni, 148ppm Co, 136ppm Cu, 72ppb Pt+Pd from 224m and inc. 7m at 0.48% Ni, 226ppm Co, 248ppm Cu, 42ppb Pt+Pd from 234m that inc. 1m at 1.26% Ni, 489ppm Co, 431ppm Cu, 49ppb Pt+Pd from 239m and inc. 9m at 0.63% Ni, 156ppm Co, 54ppm Cu, 35ppb Pt+Pd from 257m and inc. 10m at 0.36% Ni, 165ppm Co, 41ppm Cu, 12ppb Pt+Pd from 280m * Ending in mineralisation Commenting on the latest RC assay results, WMG Managing Director Dr Caedmon Marriott said: “Results from these five holes complete the two southern fences of the Phase 3 program, stepping out to the south from our previous drilling in the main body of the Mulga Tank Complex. Some of these holes are well outside the area modelled in our JORC Exploration Target, but yet again we are still seeing nickel sulphide mineralisation and the system just keeps getting bigger. Four of the holes show ~200m intervals of sulphide mineralisation, with sulphur and associated chalcophile element results (Cu and PGE’s). Various intersections of higher grade results may provide vectors to further pods or zones of richer material. MTRC055 is the best hole of this batch of results returning 216m at 0.30% Ni, which contained a number of higher grade intervals including 11m at 0.63% Ni, with 4m at 1.16% Ni that had 1m at 2.46% Ni and 0.43% Cu. Once again showing this extensive system is capable of making some strong nickel and copper grades. We’re continuously learning more about the Mulga Tank Complex, as these results and recent results from previous hole MTRC046 highlight. This information feeds back into our geological modelling and ongoing exploration targeting work.” MULGA TANK RC DRILLING PROGRAM Exploration results from the Company’s various drilling programs at the Mulga Tank Project over the last 18 months have demonstrated significant nickel sulphide mineralisation and an extensive nickel sulphide mineral system within the Mulga Tank Ultramafic Complex. The Company has now completed a 24 hole, ~7,400m Phase 3 RC program in follow-up to previous exploration. Of which, 19 holes, totalling 6,002m, were drilled within the main body of the Mulga Tank Ultramafic Complex looking to infill around previous holes and extend mineralisation to the south of previous drilling (ASX, First 19 Phase 3 RC Holes Complete at Mulga Tank, 2 September 2024). Assay results from these holes are steadily being received (ASX, Phase 3 RC Results Yield Broad Sulphide Mineralisation Zones, 13 September 2024; MTRC046 Two High-Grade Zones inc. 5m at 1.92% Ni 0.21% Cu, 17 September 2024; Phase 3 Assays Extend Known Mineralisation at Mulga Tank, 26 September 2024). ASX:WMG www.westernmines.com.au 3 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu An additional five hole, 1,411m regional component of the Phase 3 RC program was designed to test the interpreted komatiite channel system (based on aeromagnetic interpretation), extending from the main body of the Mulga Tank Complex, and the interpreted lithologies of the Minigwal Greenstone Belt (ASX, Regional EIS Drilling Confirms Belt-Scale Mineral System, 3 October 2024). Four of the holes were drilled with the aid of one of WMG’s current EIS grants (ASX, WMG Wins Two More EIS Awards to Drill Mulga Tank, 29 April 2024). Figure 1: Phase 3 assay results for disseminated nickel sulphide mineralisation HIGH MGO ADCUMULATE DUNITE Assay results for MTRC051 averaged 45.0% MgO and 0.97% Al2O3 (volatile free) over the 219m ultramafic portion of the hole, MTRC052 averaged 46.3% MgO and 0.39% Al2O3 (volatile free) over 224m of ultramafic, MTRC053 averaged 46.9% MgO and 0.38% Al2O3 (volatile free) over 240m of ultramafic, MTRC054 averaged 48.9% MgO and 0.32% Al2O3 (volatile free) over 233m of ultramafic and MTRC055 averaged 46.1% MgO and 0.52% Al2O3 (volatile free) over 234m 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 extreme adcumulate dunite with Al2O3 generally between 0.1% and 0.5% and MgO greater than 40%. ASX:WMG www.westernmines.com.au 4 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu 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. NICKEL SULPHIDE MINERALISATION 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. The Company uses a number of elements, such as Cu and PGE’s (Pt and Pd), that have high affinity for sulphide (chalcophile), in combination with S (and the S:Ni ratio) as geochemical indicators to confirm the presence of active magmatic sulphide processes and the geochemical signature of nickel sulphide mineralisation. The geochemical assay results for holes MTRC051 to MTRC055 demonstrate significant evidence for “live” magmatic sulphide chemical processes and show 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 2 to 11). 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 >0.15% and S >0.1%; Cu >20ppm, Pt+Pd >20ppb and S:Ni >0.5), with only minimal inclusion of unmineralised material below mineable width. MTRC051 130m at 0.27% Ni, 136ppm Co, 252ppm Cu, 20ppb Pt+Pd from 113m inc. 9m at 0.38% Ni, 170ppm Co, 358ppm Cu, 34ppb Pt+Pd from 121m and inc. 3m at 0.70% Ni, 400ppm Co, 0.38% Cu, 0.17g/t Pt+Pd from 147m that inc. 1m at 1.18% Ni, 650ppm Co, 0.67% Cu, 0.31g/t Pt+Pd from 148m and inc. 3m at 0.32% Ni, 141ppm Co, 155ppm Cu, 13ppb Pt+Pd from 229m 26m at 0.28% Ni, 121ppm Co, 17ppm Cu, 2ppb Pt+Pd from 258m* inc. 6m at 0.32% Ni, 141ppm Co, 33ppm Cu, 6ppb Pt+Pd from 258m Cumulative 156m at 0.27% Ni, 133ppm Co, 212ppm Cu, 17ppb Pt+Pd with S:Ni 1.4* * Ending in mineralisation Figure 2: MTRC051 Cu and Pt+Pd ASX:WMG www.westernmines.com.au 5 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu Figure 3: MTRC051 S:Ni Ratio MTRC052 19m at 0.52% Ni, 332ppm Co, 240ppm Cu, 35ppb Pt+Pd from 63m S:Ni 0.1 inc. 1m at 1.01% Ni, 282ppm Co, 146ppm Cu, 41ppb Pt+Pd from 68m S:Ni 0.05 192m at 0.28% Ni, 125ppm Co, 63ppm Cu, 11ppb Pt+Pd from 114m S:Ni 0.8* inc. 4m at 0.46% Ni, 147ppm Co, 144ppm Cu, 53ppb Pt+Pd from 108m and inc. 5m at 0.32% Ni, 135ppm Co, 87ppm Cu, 5ppb Pt+Pd from 131m and inc. 7m at 0.32% Ni, 122ppm Co, 56ppm Cu, 5ppb Pt+Pd from 200m and inc. 15m at 0.32% Ni, 137ppm Co, 65ppm Cu, 3ppb Pt+Pd from 210m and inc. 3m at 0.47% Ni, 217ppm Co, 219ppm Cu, 0.15g/t Pt+Pd from 249m * Ending in mineralisation Figure 4: MTRC052 Cu and Pt+Pd Figure 5: MTRC052 S:Ni Ratio ASX:WMG www.westernmines.com.au 6 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu MTRC053 205m at 0.28% Ni, 129ppm Co, 85ppm Cu, 16ppb Pt+Pd from 87m S:Ni 1.0* inc. 8m at 0.32% Ni, 134ppm Co, 195ppm Cu, 14ppb Pt+Pd from 114m and inc. 3m at 0.35% Ni, 131ppm Co, 47ppm Cu, 24ppb Pt+Pd from 162m and inc. 2m at 0.36% Ni, 207ppm Co, 451ppm Cu, 35ppb Pt+Pd from 168m and inc. 21m at 0.37% Ni, 148ppm Co, 71ppm Cu, 43ppb Pt+Pd from 189m and inc. 9m at 0.34% Ni, 132ppm Co, 33ppm Cu, 5ppb Pt+Pd from 215m and inc. 4m at 0.35% Ni, 161ppm Co, 153ppm Cu, 29ppb Pt+Pd from 231m * Ending in mineralisation Figure 6: MTRC053 Cu and Pt+Pd Figure 7: MTRC053 S:Ni Ratio ASX:WMG www.westernmines.com.au 7 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu MTRC054 200m at 0.28% Ni, 124ppm Co, 31ppm Cu, 10ppb Pt+Pd from 100m S:Ni 0.6* inc. 11m at 0.34% Ni, 134ppm Co, 119ppm Cu, 48ppb Pt+Pd from 126m and inc. 2m at 0.41% Ni, 208ppm Co, 404ppm Cu, 64ppb Pt+Pd from 181m * Ending in mineralisation Figure 8: MTRC054 Cu and Pt+Pd Figure 9: MTRC054 S:Ni Ratio ASX:WMG www.westernmines.com.au 8 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu MTRC055 216m at 0.30% Ni, 144ppm Co, 109ppm Cu, 20ppb Pt+Pd from 84m S:Ni 1.2* inc. 3m at 0.46% Ni, 212ppm Co, 341ppm Cu, 75ppb Pt+Pd from 127m and inc. 11m at 0.63% Ni, 211ppm Co, 535ppm Cu, 4ppb Pt+Pd from 175m that inc. 4m at 1.16% Ni, 345ppm Co, 0.13% Cu, 6ppb Pt+Pd from 182m which inc. 1m at 2.46% Ni, 641ppm Co, 0.43% Cu, 18ppb Pt+Pd from 183m and inc. 6m at 0.51% Ni, 207ppm Co, 385ppm Cu, 52ppb Pt+Pd from 197m and inc. 10m at 0.38% Ni, 156ppm Co, 90ppm Cu, 60ppb Pt+Pd from 207m and inc. 4m at 0.44% Ni, 148ppm Co, 136ppm Cu, 72ppb Pt+Pd from 224m and inc. 7m at 0.48% Ni, 226ppm Co, 248ppm Cu, 42ppb Pt+Pd from 234m that inc. 1m at 1.26% Ni, 489ppm Co, 431ppm Cu, 49ppb Pt+Pd from 239m and inc. 9m at 0.63% Ni, 156ppm Co, 54ppm Cu, 35ppb Pt+Pd from 257m and inc. 10m at 0.36% Ni, 165ppm Co, 41ppm Cu, 12ppb Pt+Pd from 280m * Ending in mineralisation Figure 10: MTRC055 Cu and Pt+Pd Figure 11: MTRC055 S:Ni Ratio ASX:WMG www.westernmines.com.au 9 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu DISCUSSION Holes MTRC051 to MTRC055 were designed to test to the south of previous drilling, forming the eastern ends of two east-west fences at ~200m drill spacing around ~100m and 300-400m south of the Phase 1 and 2 drilling and linking up to WMG’s diamond hole MTD020. This part of the main body of the Mulga Tank Ultramafic Complex has not had any previous drilling, other than hole MTD020, which was the first hole drilled by the Company to show broad visible disseminated sulphide mineralisation (ASX, Disseminated Sulphides Seen Over >300m in Hole MTD020, 26 July 2022) and was drilled as a follow-up to historical hole MTD011 (ASX:IPT, Exploration Update: Mulga Tank Project, 19 December 2013). Similar to holes MTRC044 to MTRC046 and MTRC047 to MTRC050, at the western end of these drill fences, the results demonstrate the system remains open to the south with all five holes showing broad intersections of disseminated nickel sulphide mineralisation containing high sulphur, S:Ni and chalcophile element (Cu and PGE’s) results. The holes extend nickel sulphide mineralisation outside of previously known and tested zones within the Complex and highlight a larger system than that modelled in the Company’s JORC Exploration Target (ASX, Mulga Tank JORC Exploration Target, 5 February 2024). Figure 12: Cluster of >1.0% Ni assay results within the core of the Mulga Tank Ultramafic Complex ASX:WMG www.westernmines.com.au 10 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu High-grade intersections of >1% Ni with strong Cu were seen in holes MTRC051 and in particular MTRC055: MTRC051 3m at 0.70% Ni, 400ppm Co, 0.38% Cu, 0.17g/t Pt+Pd from 147m inc. 1m at 1.18% Ni, 650ppm Co, 0.67% Cu, 0.31g/t Pt+Pd from 148m MTRC055 11m at 0.63% Ni, 211ppm Co, 535ppm Cu, 4ppb Pt+Pd from 175m inc. 4m at 1.16% Ni, 345ppm Co, 0.13% Cu, 6ppb Pt+Pd from 182m that inc. 1m at 2.46% Ni, 641ppm Co, 0.43% Cu, 18ppb Pt+Pd from 183m 1m at 1.26% Ni, 489ppm Co, 431ppm Cu, 49ppb Pt+Pd from 239m Hole MTRC051 was drilled to the south of MTRC046, which contained two high-grade zones, and was itself drilled to the south of Phase 2 holes MTRC032 and MTRC038: MTRC046 10m at 0.81% Ni, 352ppm Co, 0.28% Cu, 77ppb Pt+Pd from 224m inc. 4m at 1.14% Ni, 501ppm Co, 803ppm Cu, 0.14g/t Pt+Pd from 224m and inc. 5m at 0.61% Ni, 258ppm Co, 0.49% Cu, 32ppb Pt+Pd from 229 7m at 1.52% Ni, 578ppm Co, 0.16% Cu, 0.17g/t Pt+Pd from 282m inc. 5m at 1.92% Ni, 711ppm Co, 0.21% Cu, 0.18g/t Pt+Pd from 283m MTRC032 1m at 1.08% Ni, 602ppm Co, 379ppm Cu, 83ppb Pt+Pd from 131m 6m at 1.01% Ni, 443ppm Co, 0.32% Cu, 0.12g/t Pt+Pd from 254m MTRC038 4m at 1.09% Ni, 404ppm Co, 0.43% Cu, 71ppb Pt+Pd from 133m 2m at 1.00% Ni, 397ppm Co, 0.10% Cu, 0.44g/t Pt+Pd from 169m 1m at 3.16% Ni, 662ppm Co, 385ppm Cu, 0.18g/t Pt+Pd from 192m A number of holes across the three RC programs have returned higher grade assay results between 1% to 4.5% Ni. These intervals have generally only been logged as matrix to semi-massive sulphide in RC chips, highlighting the high tenor of the sulphide system. Figure 13: Cross section W-E through the Mulga Tank Ultramafic Complex ASX:WMG www.westernmines.com.au 11 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu Each phase of drilling and batch of geochemical assay results continues to build our understanding of the Mulga Tank Complex and the extensive disseminated sulphide mineralisation observed. The Company looks forward to regularly updating shareholders on further assay results from the Phase 3 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 12 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu APPENDIX HoleID From (m) To (m) Interval (m) Ni (%) Co (ppm) Cu (ppm) Pt + Pd (ppb) MTRC051 113 inc. 121 and inc. 147 that inc. 147 which inc. 147 and inc. 229 243 130 150 149 149 232 130 9 3 2 1 3 0.27 0.38 0.70 0.88 1.18 0.32 136 170 400 501 650 141 252 358 3799 5260 6730 155 20 34 174 241 312 13 MTRC051 258 inc. 258 284 264 26 6 0.28 0.32 121 141 17 33 2 6 MTRC052 63 inc. 68 82 69 19 1 0.52 1.01 332 282 240 146 35 41 MTRC052 108 inc. 108 and inc. 131 and inc. 200 and inc. 210 and inc. 259 300 112 136 207 225 262 300 4 5 7 15 3 0.28 0.46 0.32 0.32 0.32 0.47 125 147 135 122 137 217 63 144 87 56 65 219 11 53 5 5 3 153 MTRC053 87 inc. 114 and inc. 162 and inc. 168 and inc. 189 and inc. 215 and inc. 231 292 122 165 170 210 224 235 205 8 3 2 21 9 4 0.28 0.32 0.35 0.36 0.37 0.34 0.35 129 134 131 207 148 132 161 85 195 47 451 71 33 153 16 14 24 35 43 5 29 MTRC054 100 inc. 100 and inc. 126 that inc. 126 and inc. 181 and inc. 231 300 102 137 131 183 263 200 2 11 5 2 32 0.28 0.43 0.34 0.43 0.41 0.31 124 197 134 159 208 125 31 313 119 213 404 2 10 67 48 96 64 0 MTRC055 84 Inc. 127 and inc.175 that inc. 182 which inc. 183 that inc. 183 and inc. 197 and inc. 207 and inc. 224 and inc. 234 that inc. 239 and inc. 257 and inc. 280 300 130 186 186 185 184 197 207 224 234 239 257 280 216 3 11 4 2 1 6 10 4 7 1 9 10 0.30 0.46 0.63 1.16 1.97 2.46 0.51 0.38 0.44 0.48 1.26 0.35 0.36 144 212 211 345 542 641 207 156 148 226 489 156 165 109 341 535 1330 2555 4260 385 90 136 248 431 54 41 20 75 4 6 12 18 52 60 72 42 49 35 12 Table 1: Significant intersections holes MTRC051 to MTRC055 HoleID Easting (MGA51) Northing (MGA51) Total Depth (m) Azimuth Dip MTRC051 520900 6688350 284 270 -70 MTRC052 521101 6688500 300 270 -70 MTRC053 521300 6688500 300 270 -70 MTRC054 521100 6688350 300 270 -70 MTRC055 521300 6688350 300 270 -70 Table 2: Collar details for holes MTRC051 to MTRC055 ASX:WMG www.westernmines.com.au 13 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu 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-Co-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 (100% WMG). WMG’s exploration work has discovered a significant nickel sulphide mineral system and is considered highly prospective for globally significant Ni-Co-Cu-PGE deposits. 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: 85.15m Options: 19.60m Share Price: $0.24 Market Cap: $20.44m Cash (30/06/24): $2.13m 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 14 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu 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 15 ASX RELEASE | FURTHER HIGH-GRADE INTERVALS UP TO 2.46% Ni 0.43% Cu 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 samplin