Announcement PDF ASX/Media Announcement 23 July 2025 High grade gold and copper intercepts at SOZ underground Highlights: • Continued multiple high-grade gold and copper assays from underground drilling at Southern Ore Zone (SOZ). • Outstanding gold and copper grades intersected including: o 4.0m @ 12.89g/t Au, 5.05g/t Ag and 0.73% Cu from 86m (KSNDDH034). ▪ Incl. 1.0m @ 48.8g/t Au, 12.6g/t Ag and 2.05% Cu from 89m (KSNDDH034) o 14m @ 19.35g/t Au, 3.07g/t Ag and 0.79% Cu from 113m (KSNDDH041) o 4.2m @ 0.13g/t Au, 11.4g/t Ag and 2.42% Cu from 78.1m (KSNDDH036) o 11.16m @ 2.29g/t Au, 4.49g/t Ag and 1.74% Cu from 67m (KSNDDH039) o 6.36m @ 1.64g/t Au, 3.1g/t Ag and 1.44% Cu from 64m (KSNDDH040) • Extension potential for gold-copper dominant resources to the north. • These results boost confidence in the near-term underground mine plan and indicate a potential improvement in economic returns. Kingston Resources Limited (ASX: KSN) (‘Kingston’ or ‘The Company’) is pleased to announce the results of an additional eight drill holes from underground drilling at the Southern Ore Zone. Drilling commenced in February 2025 (see ASX announcement on 26 February 2025, and 3 June 2025) with 29 holes drilled with 19 holes returned with assays and 8 holes still pending assays. Drill holes were designed to infill planned stopes for the first 12 months of underground production. Results clearly demonstrate the high grade nature of the ore at Mineral Hill and have confirmed the initial stope designs in terms of location and tenor of gold-copper mineralisation. KSNDDH034 has intersected outstanding gold and copper grades, with the highest grade being a 4.0m interval grading 12.89 g/t gold from 86m down hole. High-grade structures within this broader zone returned assays of 1.0m at 48.8g/t gold and 2.05% copper from 89m down hole. KSNDDH041 intersected high grade gold down dip of the previously reported intersections, returning 14m @ 19.35g/t gold from 113m down hole. Kingston Resources Managing Director & CEO, Andrew Corbett, comments: "These results further solidify our mine planning and highlight the upside potential at Mineral Hill. It is important to reiterate the strength of the gold mineralisation at Mineral Hill, particularly for the G and H Lodes on the western side of the SOZ, which are anticipated to be high margin production areas. ASX: KSN Shares on Issue: 833M Market Cap: A$117M Cash: (31 March 2025) A$12.5m 202/201 Miller Street, North Sydney, NSW 2060 +61 2 8021 7492 info@kingstonresources.com.au www.kingstonresources.com.au @KSNResources With underground development already in place, we’re well positioned to convert these results into early cash flow. These outcomes strengthen our confidence in Mineral Hill as a long-life, high-margin operation and we look forward to unlocking further value as we continue drilling throughout 2025. Dewatering the historical mine workings is continuing below the 1080 level, to enable access to deeper drilling positions aimed at resource extension. In addition, the company is working on a revised underground mining schedule to expedite underground development at Mineral Hill.” Resource Definition Drilling The current underground drilling campaign is being collared at drill drives on the 1100 level and off the decline to infill the copper-gold dominant lodes on the western side, and the lead-zinc-silver lodes on the eastern side of SOZ. Twenty-nine (29) drill holes are complete with final assays received for 19 holes. Results pending (8 holes) are due by the end of Q3 CY25. This round of results is focused on the G and H Lodes on the western side of the SOZ. Drill holes KSNDDH034, 36, 39 and 40 have all reinforced the significant recent intercept in G lode from drillhole KSNDDH032, which returned 8.8m @ 42.51g/t Au, 1.77% Cu from 62m down hole (see ASX announcement on 3 June 2025). Silver grades in these results are also significant and will be recoverable in the concentrate products and precious metal dore. Table 1: Key highlights from the significant intercepts. Hole ID KSNDDH034 KSNDDH034 KSNDDH036 KSNDDH036 KSNDDH037 KSNDDH037 KSNDDH038 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH040 KSNDDH040 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH042 CuEq Insitu COG% 1 2.5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 From (m) To (m) 86 89 78.1 83.1 21 57.4 1.35 0 67 84 0 64 30 102 113 144.8 190 122.6 90 90 82.3 84 21.8 69.95 2 0.3 78.16 85 0.3 70.36 31 103 127 145.8 191 123.14 Length Au Ag Cu Pb Zn (m) (g/t) 12.89 48.80 0.13 0.46 0.18 0.19 1.17 12.20 2.29 7.80 8.96 1.64 7.85 4.98 19.35 0.09 0.08 7.81 (g/t) 5 13 11.4 11.6 15.7 12.5 30.6 45.0 4.5 2.6 28.1 3.1 2.9 1.2 3.1 8.6 11.3 15.1 (%) 0.73 2.05 2.42 3.75 2.91 3.11 8.82 8.54 1.74 0.77 9.97 1.44 1.08 0.31 0.79 3.51 5.39 6.08 (%) 0.14 0.12 0.48 0.07 0.17 0.17 0.10 0.37 0.01 0.03 0.13 0.01 0.02 0.01 0.01 0.01 0.04 0.08 (%) 0.11 0.20 0.11 0.07 0.02 0.28 0.02 0.14 0.01 0.05 0.08 0.01 0.04 0.01 0.01 0.02 0.12 0.02 4 1 4.2 0.9 0.8 12.55 0.65 0.3 11.16 1 0.3 6.36 1 1 14 1 1 0.54 CuEq Insitu (%) 9.33 34.44 2.73 4.18 3.20 3.45 9.87 17.08 3.29 5.96 16.16 2.55 6.29 3.61 13.59 3.65 5.58 11.38 CuEq Rec (%) 7.10 26.18 2.18 3.35 2.56 2.75 7.90 13.33 2.57 4.55 12.73 2.01 4.82 2.75 10.33 2.93 4.49 8.92 Est. True Width 2.5 0.0 3.6 0.8 0.4 6.6 0.4 0.2 6.0 0.5 0.2 4.8 0.5 0.5 7.2 0.5 0.5 0.3 High Grade 2 www.kingstonresources.com.au Figure 1: Plan view of SOZ drill holes with G-Lode assay results. G-Lode dips to the west. Drill hole KSNDDH041 has also intersected very high-grade gold down-dip of the previously announced KSNDDH032 (see ASX announcement on 3 June 2025). This has firmed up confidence in the planned high grade stoping panels in the mine plan. Additionally, the KSNDDH041 and 042 were extended into the footwall of G-Lode and have intersected additional mineralisation, indicative of a potential extension of resources into this area. 3 www.kingstonresources.com.au Figure 2: Cross section at 500mN (local grid) showing G-Lode (yellow), high grade gold in KSNDDH041 and potential new mineralised zones in the footwall (pink). Kingston recently announced the completion of Misima Gold Project transaction and receipt of the initial $50m cash component of the $95m total consideration (see ASX Announcements on 20 May 2025 and 11 July 2025 date). The Company will now be intensifying exploration and development drilling at all scales across the Mineral Hill mining lease and the two exploration leases. This current drill campaign was initially budgeted to be 3000m of drilling, however drilling will be ongoing when the underground drill rig returns to site in August. Key targets include additional production areas within the mine and potential extensions to the Mineral Resources. Testing the southern extensions of the SOZ ore zone will be the immediate focus for the drill rig. 4 www.kingstonresources.com.au MRE Measured MRE Indicated MRE Inferred Assays Received 1100 Level Drilled Hole 1080 Level Planned Hole 1060 Level 1040 Level 1010-1020 Level Figure 3: Long section of the SOZ drillholes looking east. Table 2: Drillhole collar information. Hole ID KSNDDH034 KSNDDH036 KSNDDH037 KSNDDH038 KSNDDH039 KSNDDH040 KSNDDH041 KSNDDH042 KSNDDH043 KSNDDH044 Local Local Local EAST NORTH 1135.9 1119.4 1128.3 1129.3 1129.3 1129.3 1100.6 1101.5 1102.0 1126.0 547.8 552.7 553.8 547.4 547.4 547.4 547.8 549.8 549.8 553.5 RL MGA20 z55 EAST MGA20 z55 NORTH AHD Dip Azimuth (Local) 1093.6 1094.0 1093.7 1093.6 1093.6 1093.6 1094.1 1094.1 1094.1 1094.1 498998.9 498983.8 498989.4 498994.6 498994.6 498994.6 498974.0 498973.3 498973.6 498988.0 6395346.6 6395338.5 6395345.5 6395341.6 6395341.6 6395341.6 6395321.7 6395323.7 6395324.1 6395343.6 93.6 94.0 93.7 93.6 93.6 93.6 94.1 94.1 94.1 94.1 -16 -24 -67 -12 -18 -21 -62 -66 -78 -73 159 59 39 154 137 130 139 121 94 11 Total Depth (m) 90 88 80 130 90 90 200 200 200 200 Assay Status Final Final Final Final Final Final Final Final Pending Pending Table 3: Full list of significant intercepts. Hole ID KSNDDH034 KSNDDH034 KSNDDH034 KSNDDH034 KSNDDH034 KSNDDH034 KSNDDH036 KSNDDH036 KSNDDH036 KSNDDH036 KSNDDH036 KSNDDH036 KSNDDH036 KSNDDH036 KSNDDH037 Incl CuEq Insitu COG % 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 From (m) 12 20 39.25 67 80 86 31 34 37.75 44.5 49 78.1 83.1 87 21 Length Au Ag Cu Pb Zn CuEq Insitu CuEq Rec (m) (g/t) (g/t) (%) (%) (%) (%) (%) Est. True Width 1 1 0.75 1 1 4 0.8 4.8 1.05 0.5 2 4.2 0.9 1 0.8 1.39 0.11 0.06 0.01 0.01 12.89 0.09 0.17 0.56 0.08 0.03 0.13 0.46 0.09 0.18 1 6 6 4 6 5 5 2 5 3 2 11.4 11.6 2.2 15.7 0.08 0.89 0.39 0.09 0.49 0.73 0.92 0.65 1.36 0.56 0.48 2.42 3.75 0.58 2.91 0.02 0.05 0.13 0.87 0.17 0.14 0.01 0.00 0.01 0.02 0.04 0.48 0.07 0.03 0.17 0.01 0.01 0.11 0.97 0.13 0.11 0.01 0.01 0.01 0.02 0.06 0.11 0.07 0.14 0.02 1.02 1.03 0.54 0.58 0.62 9.33 1.02 0.78 1.77 0.64 0.55 2.73 4.18 0.70 3.20 0.77 0.82 0.42 0.40 0.48 7.10 0.82 0.62 1.40 0.51 0.43 2.18 3.35 0.55 2.56 0.6 0.6 0.5 0.6 0.6 2.5 0.7 4.1 0.9 0.4 1.7 3.6 0.8 0.9 0.4 To (m) 13 21 40 68 81 90 31.8 38.8 38.8 45 51 82.3 84 88 21.8 5 www.kingstonresources.com.au Hole ID KSNDDH037 KSNDDH037 KSNDDH037 KSNDDH037 KSNDDH037 KSNDDH038 KSNDDH038 KSNDDH038 KSNDDH038 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH039 KSNDDH040 KSNDDH040 KSNDDH040 KSNDDH040 KSNDDH040 KSNDDH040 KSNDDH040 KSNDDH040 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH041 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 Incl Incl Incl Incl Incl Incl Incl Incl Incl Incl Incl Incl Incl Incl Incl CuEq Insitu COG % 0.5 1 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 0.5 0.5 1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 1 0.5 0.5 0.5 1 1 0.5 1 0.5 0.5 0.5 0.5 1 1 0.5 0.5 0.5 1 From (m) 31.2 31.2 57.4 72 73 1.35 20 29 34 0 16.3 24 24 28.42 41 59 63.09 67 84 0 14.22 22.85 33 39 64 64 73.38 0 1 5 9.07 30 51 87 90 96 96 102 108 113 143.6 144.8 160 167 172 177 179 188.7 190 195.2 0 3.5 12.19 12.19 15.77 28.2 78.4 85 87.07 Length Au Ag Cu Pb Zn CuEq Insitu CuEq Rec (m) (g/t) (g/t) (%) (%) (%) (%) (%) Est. True Width 3.8 1.8 12.55 4 1 0.65 1 1.05 3.4 0.3 0.7 3 1 0.58 1 1 15.71 11.16 1 0.3 0.34 0.32 2 1.23 6.95 6.36 0.62 2.03 1.03 1.1 6.93 1 1 1 1 7 1 1 1.4 14 2.2 1 1.2 1 9 1 1 4.3 1 1.3 1.33 0.82 4.81 0.36 0.32 2.68 1.2 2.82 0.75 0.24 0.41 0.19 0.11 0.14 1.17 0.58 0.40 0.06 12.20 0.69 0.11 0.23 0.04 0.04 0.01 1.65 2.29 7.80 8.96 0.13 0.22 0.05 0.02 1.50 1.64 0.09 0.09 0.05 0.10 0.64 7.85 0.05 0.12 0.23 1.05 1.00 4.98 0.68 19.35 0.06 0.09 0.02 0.05 0.05 0.16 0.06 0.04 0.08 0.01 0.04 0.08 0.24 0.80 1.05 0.37 0.23 0.90 2.99 2.4 4.2 12.5 6.8 11.3 30.6 9.6 2.8 11.5 45.0 2.7 3.1 4.9 4.3 6.2 3.2 3.6 4.5 2.6 28.1 3.4 4.8 2.9 3.7 2.9 3.1 6.4 6.4 8.8 5.6 3.0 2.9 3.1 2.8 1.7 2.2 4.7 1.2 2.1 3.1 4.8 8.6 1.5 1.5 1.9 4.8 3.1 4.2 11.3 1.9 4.0 2.1 5.2 2.3 56.8 13.4 1.8 3.0 5.7 0.71 1.22 3.11 0.49 0.74 8.82 0.36 0.66 0.51 8.54 0.08 0.50 0.82 0.47 0.52 0.72 1.40 1.74 0.77 9.97 1.48 0.47 0.61 0.59 1.36 1.44 1.09 1.09 1.32 0.69 0.76 1.08 0.76 0.52 0.46 0.45 1.00 0.31 0.58 0.79 1.93 3.51 0.75 0.52 0.61 1.23 1.22 1.66 5.39 0.63 0.46 0.45 0.53 0.70 2.81 1.02 0.33 0.58 1.21 0.00 0.00 0.17 0.13 0.19 0.10 0.11 0.01 0.19 0.37 0.02 0.02 0.02 0.06 0.12 0.25 0.01 0.01 0.03 0.13 0.00 0.06 0.05 0.03 0.01 0.01 0.18 0.18 0.31 0.18 0.06 0.02 0.02 0.03 0.01 0.02 0.03 0.01 0.01 0.01 0.01 0.01 0.00 0.01 0.02 0.11 0.01 0.02 0.04 0.02 0.23 0.01 0.15 0.01 1.88 0.22 0.02 0.02 0.02 0.01 0.01 0.28 0.42 1.30 0.02 0.01 0.01 0.06 0.14 0.00 0.02 0.01 0.06 0.07 0.87 0.01 0.01 0.05 0.08 0.00 0.04 0.38 0.02 0.01 0.01 0.21 0.21 0.38 0.16 0.08 0.04 0.01 0.01 0.01 0.02 0.04 0.01 0.01 0.01 0.01 0.02 0.01 0.01 0.02 0.10 0.01 0.04 0.12 0.01 0.12 0.03 0.46 0.01 6.08 0.12 0.07 0.02 0.01 0.89 1.53 3.45 0.76 1.32 9.87 0.84 0.95 0.70 17.08 0.57 0.60 1.02 0.56 0.65 1.05 2.52 3.29 5.96 16.16 1.59 0.68 0.77 0.64 2.38 2.55 1.30 1.30 1.60 0.88 1.24 6.29 0.82 0.62 0.63 1.18 1.71 3.61 1.05 13.59 2.01 3.65 0.78 0.57 0.67 1.42 1.28 1.73 5.58 0.66 0.60 0.53 0.89 1.25 6.06 1.46 0.52 1.20 3.23 0.71 1.22 2.75 0.58 0.98 7.90 0.65 0.75 0.55 13.33 0.43 0.48 0.81 0.44 0.51 0.79 1.98 2.57 4.55 12.73 1.28 0.53 0.60 0.51 1.87 2.01 1.03 1.03 1.26 0.69 0.97 4.82 0.66 0.50 0.50 0.91 1.34 2.75 0.82 10.33 1.62 2.93 0.62 0.46 0.53 1.13 1.03 1.39 4.49 0.53 0.47 0.42 0.68 0.98 4.44 1.14 0.40 0.94 2.50 2.0 0.9 6.6 2.1 0.5 0.4 0.6 0.6 2.1 0.2 0.4 1.6 0.5 0.3 0.5 0.5 8.5 6.0 0.5 0.2 0.3 0.2 1.5 0.9 5.2 4.8 0.5 1.0 0.5 0.6 3.6 0.5 0.5 0.5 0.5 3.6 0.5 0.5 0.7 7.2 1.1 0.5 0.6 0.5 4.6 0.5 0.5 2.2 0.5 0.7 0.7 0.4 2.5 0.2 0.2 1.4 0.6 1.5 0.4 To (m) 35 33 69.95 76 74 2 21 30.05 37.4 0.3 17 27 25 29 42 60 78.8 78.16 85 0.3 14.56 23.17 35 40.23 70.95 70.36 74 2.03 2.03 6.1 16 31 52 88 91 103 97 103 109.4 127 145.8 145.8 161.2 168 181 178 180 193 191 196.5 1.33 4.32 17 12.55 16.09 30.88 79.6 87.82 87.82 6 www.kingstonresources.com.au Hole ID KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 KSNDDH042 Incl Incl Incl Incl CuEq Insitu COG % 0.5 0.5 1 1 0.5 0.5 1 0.5 0.5 1 0.5 0.5 0.5 0.5 From (m) To (m) 90 101.94 103 107 113.62 121.4 122.6 150.68 177.91 177.91 193 198 207.6 220 91.2 107.98 104 107.98 114.06 125.4 123.14 152 182 181 194 205.2 211.33 221 Length Au Ag Cu Pb Zn CuEq Insitu CuEq Rec (m) (g/t) (g/t) (%) (%) (%) (%) (%) Est. True Width 1.2 6.04 1 0.98 0.44 4 0.54 1.32 4.09 3.09 1 7.2 3.73 1 0.13 0.24 0.70 0.19 0.48 1.26 7.81 0.03 0.07 0.05 0.01 0.00 0.01 0.07 2.5 1.6 2.8 2.6 2.1 2.9 15.1 1.2 3.0 2.9 1.9 1.7 1.7 2.0 0.53 0.67 1.13 1.17 0.71 1.05 6.08 0.48 1.08 1.28 0.49 0.60 0.58 0.70 0.02 0.00 0.00 0.00 0.01 0.01 0.08 0.01 0.08 0.02 0.11 0.07 0.04 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.09 0.01 0.10 0.04 0.01 0.03 0.64 0.85 1.61 1.31 1.05 1.91 11.38 0.52 1.20 1.34 0.56 0.65 0.62 0.77 0.51 0.68 1.28 1.05 0.83 1.50 8.92 0.42 0.96 1.08 0.45 0.52 0.49 0.62 0.6 3.1 0.5 0.5 0.2 2.1 0.3 0.7 2.1 1.6 0.5 3.7 1.9 0.5 7 www.kingstonresources.com.au Metal Equivalents This announcement quotes metal equivalent grades for drilling assay results. Price assumptions used are based primarily on consensus forecasts with adjustments based on company expectations. Copper equivalent insitu (CuEqIS) conversion factors are used within the announcement and are calculated by dividing price/unit for each commodity (Cu/t, Au/oz, Ag/oz, Pb/t, Zn/t). Copper equivalent recovered (CuEq) conversion factors are used within the announcement and are calculated by dividing price/unit for each commodity (Cu/t, Au/oz, Ag/oz, Pb/t, Zn/t) and multiplying by the metallurgical recovery. Metallurgical recoveries are based on historical production (2010-2016) as well as recent metallurgical test work and are applied to the calculated grades for each commodity. The Company is of the opinion that all the elements included in the metal equivalent calculations have a demonstrated potential to be recovered and sold. Mineral Hill has a CIL circuit, Cu flotation circuit, Pb flotation circuit and Zn flotation circuit to produce three different concentrates as well as gold dore. CuEq Insitu % = (1.0 * Cu %) + (0.66 * Au g/t) + (0.008 * Ag g/t) + (0.221 * Pb %) + (0.277 * Zn %) CuEq Recovered % = (0.809 * Cu %) + (0.50 * Au g/t) + (0.0052 * Ag g/t) + (0.175 * Pb %) + (0.167 * Zn %) Commodity Unit Price Recovery (%) CuEqRec Factor Gold US$/oz 2,236 76 0.50 Silver US$/oz 27.6 64 0.0052 Copper US$/lb 4.95 80 0.809 Lead US$/lb 1.09 79 0.175 Zinc US$/lb 1.37 60 0.167 8 www.kingstonresources.com.au About Kingston Resources Kingston Resources is currently producing gold and silver from its Mineral Hill gold and copper mine in NSW. The Company’s objective is to establish itself as a mid-tier gold and base metals company with multiple producing assets. • • • • • Mineral Hill Mine, NSW (100%) Mine plan out to the end of 2031: Open pit and underground mining. Significant upside: Current life of mine only utilises 27% of the current 8.2Mt of Mineral Resources. Infrastructure excellence: Extensive existing infrastructure with all permits and approvals in place. Exploration potential: Exceptional upside within current Mining Leases (ML) and Exploration Licenses (EL). Current Focus: Open pit mining at Pearse. Mineral Hill is a gold and copper mine located in the Cobar Basin of NSW. On 30 September 2024, Kingston released an updated life-of-mine (LOM) production target, outlining a six-year LOM plan comprising a maiden underground Ore Reserve and a revised open pit Ore Reserve. The Company is focused on meeting near mine production targets located on the existing MLs. The aim is to extend the mine’s life through organic growth and consider regional deposits that could be processed at Mineral Hill’s processing plant. The Mineral Hill Mineral Resource estimate outlined below was released in ASX announcements on 15 March 2023 (Pearse South), 14 May 2024 (Pearse North), 24 November 2022 (Southern Ore Zone), 21 March 2023 (Jack’s Hut) and 13 September 2011 (Parkers Hill by KBL). The Ore Reserve estimate outlined below was released in ASX announcements on 30 September 2024 (Pearse South, Pearse North and Southern Ore Zone). Further information is included within the original announcements. Kingston is not aware of any new information or data that materially affects the information included in this announcement. All material assumptions and technical parameters underpinning the Mineral Resources and Ore Reserve estimates continue to apply and have not materially changed. 9 www.kingstonresources.com.au This release has been authorised by the Kingston Resources Limited Board. For all enquiries, please contact Managing Director , Andrew Corbett, on +61 2 8021 7492. Mineral Resources and Ore Reserves Mineral Hill JORC 2012 & JORC 2004 Mineral Resource & Ore Reserve summary table Resource Category Measured Tonnes (kt) 233 Gold Grade (g/t) 2.01 Silver Grade (g/t) 11 Cu % 1.2% Pb % 0.5% Zn % 0.4% Au (koz) 15 Ag (koz) 81 Cu (kt) 3 Pb (kt) 1.2 Zn (kt) 0.8 Indicated 4,501 1.13 29 1.1% 1.9% 1.1% 164 4,556 47 77 46 Inferred 3,020 1.81 18 0.9% 0.9% 0.7% 175 1,727 25 26 20 Total 7,755 1.4% 0.9% 354 6,364 75 104 67 Tonnes (kt) - 26 Silver Grade (g/t) - 1.0% Reserve Category Proved 1.42 Gold Grade (g/t) - Cu % - Pb % - Zn % - Au (koz) - Ag (koz) - Cu (kt) - Pb (kt) - Zn (kt) - Probable 1,100 2.2 31 0.8% 1.9% 1.6% 74 1,087 5.5 13 11 Total 1,100 2.2 31 0.8% 1.9% 1.6% 74 1,087 5.5 13 11 1. 2. 3. 4. Due to rounding to appropriate significant figures, minor discrepancies may occur, tonnages are dry metric tonnes. Probable Ore Reserves are derived from Indicated Mineral Resources. The Ore Reserves do not include, or depend upon, Inferred Mineral Resources. The Ore Reserves form part of the Mineral Resources. 5. Total Mineral Resources account for mining depletion of the Tailings Project as at 23 April 2024 Competent Persons Statement and Disclaimer The information in this report that relates to Exploration Results and Mineral Resources is based on information compiled by Mr. Stuart Hayward BAppSc (Geology) MAIG, a Competent Person who is a member of the Australian Institute of Geoscientists. Mr. Hayward is an employee of the Company. Mr. Hayward 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 2 012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr. Hayward confirms that the information in the market announcement provided is an accurate representation of the available data and studies for the material mining project and consents to the inclusion in this report of the matters based upon the information in the form and context in which it appears. The Competent Person signing off on the overall Pearse Opencut Ore Reserves Estimate is Mr John Wyche BE (Min Hon), of Australian Mine Design and Development Pty Ltd, who is a Fellow of the Australasian Institute of Mining and Metallurgy and who has sufficient relevant experience in operations and consulting for open pit metalliferous mines. Mr Wyche consents to the inclusion in this report of the information pertaining to the Pearse Opencut Ore Reserve in the form and context in which it appears. 10 www.kingstonresources.com.au JORC CODE 2012 EDITION, Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria JORC Code explanation 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. 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). www.kingstonresources.com.au Commentary Diamond Drilling Sample Collection • A diamond core drill rig was used to produce rock samples of core. Run length was variable between 3m and 1m depending on the ground conditions and any expected mineralisation. • Triple Tube HQ and NQ barrel set up was utilised to maximize recoveries. • Diamond drill core is orientated where orientation tools provided an outcome that is assessed as reliable. • The geologist selects sample intervals based on logged geology (lithology, alteration, mineralisation, structures) with minimum sample length of 0.3m and maximum of 1.5m. Half core samples were taken from start to end of hole. All drill core is sampled using an automated/mechanical core cutting machine with diamond cutting blade. Samples comprise half core with sample intervals determined by the geologist and recorded as a cut sheet. • For orientated drill core a cutting refence line is drawn approximately 15mm offset form the orientation line. Drill core is cut along the cut line with the orientation line not sampled and returned to the core box for future reference. • Non-orientated drill core is cut along a reference line that is the best approximation of the extensions of the orientation reference line with the intent of ensuring the same half core is sampled. • Samples are placed in calico bags and dispatched to ALS laboratory where they are received and registered with a sample receipt document provided as a record of the chain of custody process. Analysis of Geotechnical Samples • Field point load testing (PLT) was conducted on solid pieces of core >100mm in length from every 3rd core tray. Different rock type samples were selected to collect a range of data reflecting varying rock mass strengths throughout each hole. • Diamond Core Drilling: - 29 diamond drill holes have been completed to date for a total of 3963.6 metres • This release refers to 8 diamond drill holes that have been completed in the program for a total of 978 m. • The holes were collared in two separate sites in existing SOZ underground drives on the 1100 Level. • All holes were diamond cored with HQ3 with the option to reduce to NQ3 where adverse ground conditions were encountered. • All holes were oriented using an Axis North-seeking Gyroscopic tool. During drilling a collar 11 Criteria Drill sample recovery Logging JORC Code explanation Commentary • 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. check survey and a 15m survey was taken, followed by surveys every 30m from 30m depth to end of hole. Prior to completing each hole, a multi-shot continuous gyro survey was taken. Each single shot and EOH multi-shot was then uploaded to the cloud-hosted Axis database for retrieval and review by Geology. • Reverse Circulation Drilling • No Reverse Circulation drilling was completed as part of the program being reported or depicted in the release. • Diamond Drill Core • Diamond drill core is recovered on a run-by-run basis where the length drilled, and axial length recovered is recorded by the drilling crew. Run length and recovery are remeasured and calculated in the core processing area. No significant discrepancies have been noted between driller and KSN determined runs and recovery. • Diamond drill core is sampled as half core using a diamond blade auto saw. • Core loss zones have not been sampled. These ‘gaps’ in sampling have been assigned zero (0) grade for the purposes of significant interval calculation. • 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. www.kingstonresources.com.au • Reverse Circulation Drilling • No Reverse Circulation drilling referred to or reported or depicted in the release. • A qualified geologist logs all drill core from this program. • Logging captured, lithological, alteration, mineralisation, structural and weathering information. Drill core also provided geotechnical data based on physical counts of and physical measurement of angles, hardness, roughness, of discontinuities and visual assessment and description of structural features. • Geological logging is generally qualitative in nature noting the presence of various geological features and their intensities using a numerical 1-5 scale. Quantitative features of the logging include structural alpha and beta measurements captured as well as magnetic susceptibility and bulk density data. • Bulk density intervals were chosen to represent the range of lithology/alteration and mineralisation within the hole. The test can only be completed on competent core, so areas of broken or clay-ey core are not represented in the bulk density measurements, • “Dry weight” and “Wet weight” measurements were taken every 3 trays for pieces of core >= 10cm and bulk density calculated using the Archimedes Principal: • Bulk Density = (Sample Weight in Air) *(Fluid Density) / (Sample Weight in Air) – Sample Weight in Water). • The entire set of holes are fully logged and photographed. • Diamond Core Drilling • Recoveries were measured by the driller and/or offsider whilst in the splits on the rack 12 Criteria JORC Code explanation Commentary at the rig site using a handheld tape measure. Recoveries were written in permanent marker on a core block placed in the core tray. The Geologist and/or field assistant measured the length of recovered core in the trays when meter marking the core. Recovery is recorded as a percentage per run. • Drill core recoveries across the drill holes average >95% with 5-0% recovery in mineralised zones. • There is no observed relationship between sample recovery and grade. Sub-sampling techniques and sample preparation • 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 subsampling 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. • Diamond drill core sampling intervals are determined by the logging geologist and is defined by key geological characteristics such as lithology, alteration, mineralisation style paragenesis etc, and structure. • Drill core is sampled as half core using an automated diamond blade core saw. • Core is sampled from the same half with a cut at approximately 15mm offset from the BOH orientation line that is retained in the core tray for future reference. • Primary sample intervals are not subsampled further. • Routine QAQC was used in the sampling process. Blank material was introduced at 1:30. Certified Reference Material was introduced at a ratio of 1:25 and in areas of identified mineralization. mineralisation. Crush and pulp d