Announcement PDF ASX ANNOUNCEMENT 4 November 2026 Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Capricorn and Rockland Drilling Results HIGHLIGHTS • Assay results received for 15 RC holes from the recent drilling at the Capricorn Gold Project and the last five holes of the Stage 2 programme at Rockland, approximately 40km north of Kalgoorlie • Shallow extensional was gold intersected at Capricorn, within the existing drilling:  16m @ 0.8 g/t Au from 28m, including 4m @ 1.9 g/t Au from 28m (26CRC012)  4m @ 1.3 g/t Au from 20m and 4m @ 2.2 g/t Au from 36m (26CRC011) • 26CRC014, drilled on the eastern side of the deposit, intersected 10m @ 1.1 g/t Au from 138m, including 1m @ 5.5 g/t Au from 138m. • At Rockland, 26RKRC014 returned 12m @ 1.0 g/t Au from 104m, including 4m @ 2.5 g/t Au from 112m, and seven of the eight recent drill holes have now intersected gold mineralisation • Following the encouraging Stage 2 results at Rockland, the drill rig is scheduled to return in approximately 10 days to continue resource definition and extensional drilling • Assays for further Capricorn holes are yet to be received and all the drilling at the Baden Powell resource is yet to be received Dundas Minerals Limited (ASX: DUN) (“Dundas” or the “Company”) reports first assay results from southerly extensional drilling at the Capricorn Gold Project (M24/1004) and the last of the Stage 2 results from the Rockland Gold Project (M24/974). Both projects are approximately 40km north of Kalgoorlie in Western Australia. Twenty RC holes for 3,166m are reported, 15 at Capricorn and five at Rockland. They are part of the Company’s 5,000m RC programme across its Kalgoorlie gold projects, which started in September (ASX: 2 September 2026). Every hole is listed in Appendix 1. Results are from 4m composite samples unless marked in Appendix 1 as 1m samples, and all intervals are downhole lengths. Capricorn Capricorn hosts an Inferred Mineral Resource of 659,300t @ 1.2 g/t Au at a 0.5 g/t Au cut-off (100% basis). The estimate was first reported by Horizon Minerals Limited (ASX: HRZ) on 28 September 2022 and was reported by Dundas on 11 March 2026. This year’s holes were designed to infill the deposit and to test for extensions along strike and down dip (ASX: 2 September 2026). Results have been received for 15 holes for 2,130m (Figure 1). The three holes on the 6640530mN line, which lies within the existing drilling, all intersected shallow mineralisation: • 26CRC012: 16m @ 0.8 g/t Au from 28m, including 4m @ 1.9 g/t Au from 28m • 26CRC011: 4m @ 1.3 g/t Au from 20m, 4m @ 2.2 g/t Au from 36m and 4m @ 0.4 g/t Au from 64m • 26CRC013: 4m @ 0.6 g/t Au from 44m and 4m @ 0.4 g/t Au from 68m Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN ASX ANNOUNCEMENT 26CRC014 was drilled from the eastern side of the deposit to test the down dip extension of the east dipping mineralisation. It successfully intersected 10m @ 1.1 g/t Au from 138m, including 1m @ 5.5 g/t Au from 138m, together with 1m @ 1.0 g/t Au from 127m and 6m @ 0.5 g/t Au from 153m (see Figure 1). Figure 1: Capricorn cross-section looking North, showing 26CRC014 down dip and the vertical hole that did not reach the target and will be extended at a later date. Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN ASX ANNOUNCEMENT Figure 2: Capricorn cross-section looking North, showing open ended mineralisation on the line 100m north of Figure 1. The shallow flattening to the West is interpreted to be the product of supergene mineralisation. 26CRC018, in the northern part of the deposit, returned 4m @ 0.4 g/t Au from 52m and 4m @ 0.7 g/t Au from 88m. The nine holes drilled on three lines to the south of the existing drilling (26CRC001 to 26CRC009) were less encouraging, and six of them returned no significant result (26CRC001, 002, 003, 005, 006 and 007). The best was 8m @ 0.9 g/t Au from 28m in 26CRC008, with 4m @ 0.3 g/t Au from 28m in 26CRC004 and 1m @ 0.7 g/t Au from 191m in 26CRC009. 26CRC008 was collared about 20m south of 23WDRC003, which intersected 3m @ 9.14 g/t Au from 114m in 2023 (ASX: 6 February 2024), but did not repeat that result. On current drilling the mineralisation appears to weaken to the south. Assays are pending for four holes in the northern part of the deposit (blue collars on Figure 2). Rockland This drilling campaign at Rockland was an eight-hole programme testing down dip and along strike from the east dipping mineralised shoots. The first three holes were reported on 23 September 2026. The remaining five holes, for 1,036m, returned (Figure 4): • 26RKRC014: 12m @ 1.0 g/t Au from 104m, including 4m @ 2.5 g/t Au from 112m, and 4m @ 0.3 g/t Au from 68m • 26RKRC015: 4m @ 0.6 g/t Au from 160m Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN ASX ANNOUNCEMENT • 26RKRC016: no significant result • 26RKRC017: 4m @ 0.70 g/t Au from 158m • 26RKRC018: 10m @ 0.6 g/t Au from 88m, including 1m @ 1.9 g/t Au from 96m, and 4m @ 0.4 g/t Au from 48m Holes 26RKRC014 to 26RKRC017 were drilled within 70m of 26RKRC005, which returned 3m @ 6.94 g/t Au from 138m, including 1m @ 20.35 g/t Au from 140m (ASX: 23 June 2026). Three of the four intersected mineralisation, but at lower grades than 26RKRC005, and 26RKRC016, about 45m to the west, did not return a significant result. 26RKRC018, about 100m to the north, returned 10m @ 0.6 g/t Au from 88m. Seven of the eight Stage 2 holes have now intersected gold mineralisation. The best Stage 2 results came from the southern drill line (6638759mN), where 26RKRC011 intersected 12m @ 1.25 g/t Au from 168m, including 4m @ 2.18 g/t Au from 176m, and 4m @ 4.87 g/t Au from 200m. These intercepts lie down dip of earlier Dundas results on the same line, including 6m @ 3.3 g/t Au from 78m (24RKRC005) and 8m @ 1.1 g/t Au from 145m (24RKRC007). Historical Paddington hole TLRC042, which plots on the same section, returned 5m @ 5.52 g/t Au from 114m. Following these encouraging results, the drill rig is scheduled to return to Rockland in approximately 10 days to continue resource definition drilling. One metre re-assays of the 26RKRC011 to 26RKRC013 composites are pending. Next Steps Resource definition drilling at Rockland is scheduled to start in approximately 10 days. Assays for the remaining Capricorn holes are expected and drilling results from Baden-Powell are expected through the December quarter. The Capricorn and Rockland results will be used to update the geological models and plan further drilling. Commenting on the results, Dundas Minerals Managing Director Jonathan Downes said: “Drilling at Capricorn has given both shallow gold within the existing resource areas and extended mineralisation down plunge, for example drill hole 26CRC014 has picked up mineralisation at depth on the eastern side. The mineralisation from this campaign and the drilling conducted by Dundas in early 2023 which returned high grade results will be utilised to build an extended resource model. “At Rockland, seven of the eight recent drill holes intersected gold, and the southern line around 26RKRC011 continues to stand out. We are encouraged by what we are seeing there, and we are excited to be bringing the rig back so soon to continue the resource definition and extensional drilling.” Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN ASX ANNOUNCEMENT Figure 3: Capricorn collar plan showing the 2026 holes (yellow), holes awaiting assays (blue) and previous drilling (white), with selected previously reported intercepts. Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN ASX ANNOUNCEMENT Figure 4: Rockland collar plan showing the Stage 2 holes (yellow) and previous drilling (white), with selected previously reported intercepts. Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN ASX ANNOUNCEMENT References 1 06/02/2024 High Grade Gold Intercepts from Windanya Drilling 2 12/12/2024 New 1km Zone of Gold Mineralisation Discovered from RC Drilling at Rockland 3 21/01/2025 High-Grade Intercepts Confirm 1km Mineralised Trend 4 11/03/2026 Presentation and Strategy 5 11/05/2026 Rockland RC Drilling Results 6 23/06/2026 Rockland 1m Re-Assay Results 7 21/07/2026 Heritage Survey Clear – Kalgoorlie Projects 8 02/09/2026 Drilling Commences at Kalgoorlie Gold Projects 9 03/09/2026 Kalgoorlie Gold Belt Consolidated – High-Grade Gold Mineralisation Acquired 10 23/09/2026 Rockland Drilling Extends Gold Mineralisation 11 28/09/2022 Gold Resources Increase to 1.24m oz (Horizon Minerals Limited, ASX: HRZ) - ENDS - This announcement has been authorised for release by the Board of Dundas Minerals Limited. FOR FURTHER INFORMATION Jonathan Downes Managing Director Dundas Minerals Limited P: +61 (08) 9481 0389 | M: +61 412 124 758 E: admin@dundasminerals.com W: www.dundasminerals.com ABOUT DUNDAS MINERALS LIMITED Dundas Minerals Limited (ASX: DUN) is an Australian gold exploration company with a portfolio of projects located in Western Australia. The Company’s strategy is focused on advancing precious metal exploration assets across both established mining districts and under explored frontier regions with demonstrated geological prospectivity. In the Kalgoorlie district, the Company holds interests in three advanced gold projects - Rockland (discovery), Capricorn and Baden-Powell (resource) - all of which are located on granted Mining Licences, open-ended to gold mineralisation and located within close proximity of existing gold processing infrastructure. In the north-eastern Goldfields, the Company is also targeting exploring the Romano Gold Project, a large landholding in the Yamarna region north of the Gruyere gold mine. ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Figure 5: Tenement plan showing the consolidated position and the interpreted mineralised corridor from Rockland through Capricorn and Aquarius to Gemini (ASX 3 September 2026) ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN COMPLIANCE STATEMENTS Competent Person’s Statement The information in this announcement that relates to Exploration Results is based on, and fairly represents, information and supporting documentation compiled and reviewed by Mr Jonathan Downes, a Member of the Australian Institute of Geoscientists. Mr Downes is Managing Director and a full-time employee of Dundas Minerals Limited, and holds shares and options in the Company. Mr Downes has sufficient experience 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 Downes consents to the inclusion in this announcement of the matters based on his information in the form and context in which it appears. Previously Reported Results Previously announced exploration results referred to in this announcement are extracted from the Company’s ASX announcements listed in the References above. The Company confirms that it is not aware of any new information or data that materially affects the information included in those announcements, and that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original announcements. Readers are referred to those announcements for full details, including their JORC Table 1 disclosures. The Capricorn Mineral Resource referred to in this announcement was originally reported by Horizon Minerals Limited on 28 September 2022 and has been reported by the Company in its ASX announcement dated 11 March 2026. The Company confirms that it is not aware of any new information or data that materially affects the information included in that announcement, that all material assumptions and technical parameters underpinning the estimate continue to apply and have not materially changed, and that the form and context in which the Competent Person’s findings are presented have not been materially modified. Forward Looking Statements This announcement contains forward-looking statements. Forward-looking statements are often, but not always, identified by the use of words such as “seek”, “target”, “anticipate”, “forecast”, “believe”, “plan”, “estimate”, “expect” and “intend”, and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved, and other similar expressions. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those expressed or implied in such statements. ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Appendix 1: Drill Hole Collars and Significant Intercepts Hole ID Easting (GDA94) Northing (GDA94) RL (AHD) Dip (°) Azimuth (GDA94) Depth (m) From (m) To (m) Interval (m) Au intercept (>0.3 g/t Au) Capricorn (M24/1004) 26CRC001 332170.8 6640315.6 415 -60 270 108 – – – No significant intercept 26CRC002 332261.8 6640309.2 411.1 -60 270 156 – – – No significant intercept 26CRC003 332171.1 6640361.7 411.9 -60 270 102 – – – No significant intercept 26CRC004 332259.2 6640360.8 410.3 -60 270 156 28 32 4.0 4.0m @ 0.3 g/t from 28m 26CRC005 332340.6 6640361.7 412.2 -60 270 178 – – – No significant intercept 26CRC006 332166.9 6640406.9 412.1 -60 270 84 – – – No significant intercept 26CRC007 332256.7 6640412.2 411.2 -60 270 126 – – – No significant intercept 26CRC008 332298.9 6640413.5 411 -60 270 153 28 36 8.0 8.0m @ 0.9 g/t from 28m 26CRC009 332334.5 6640409.2 411.4 -60 270 210 191 192 1.0 1.0m @ 0.7 g/t from 191m† 26CRC011 332255.5 6640536.4 410 -60 270 102 20 24 4.0 4.0m @ 1.3 g/t from 20m 36 40 4.0 4.0m @ 2.2 g/t from 36m 64 68 4.0 4.0m @ 0.4 g/t from 64m 26CRC012 332274.6 6640528.6 410 -60 270 120 28 44 16.0 16.0m @ 0.8 g/t from 28m 28 32 4.0 incl. 4.0m @ 1.9 g/t from 28m 26CRC013 332310.6 6640529 410 -60 270 144 44 48 4.0 4.0m @ 0.6 g/t from 44m 68 72 4.0 4.0m @ 0.4 g/t from 68m 26CRC014 332413.7 6640498.1 412 -60 270 197 127 128 1.0 1.0m @ 1.0 g/t from 127m† 138 148 10.0 10.0m @ 1.1 g/t from 138m† 138 139 1.0 incl. 1.0m @ 5.51 g/t from 138m† 153 159 6.0 6.0m @ 0.5 g/t from 153m† 153 154 1.0 incl. 1.0m @ 1.2 g/t from 153m† 26CRC014V 332414 6640495.8 412.5 -90 0 180 – – – No significant intercept 26CRC018 332355 6640659 418 -60 270 114 52 56 4.0 4.0m @ 0.4 g/t from 52m 88 92 4.0 4.0m @ 0.7 g/t from 88m Rockland Stage 2 (M24/974) 26RKRC014 332501 6639115 422 -60 270 238 68 72 4.0 4.0m @ 0.3 g/t from 68m 104 116 12.0 12.0m @ 1.0 g/t from 104m 112 116 4.0 incl. 4.0m @ 2.5 g/t from 112m 26RKRC015 332544 6639113 423 -60 270 258 160 164 4.0 4.0m @ 0.6 g/t from 160m 26RKRC016 332456 6639165 420 -60 270 168 – – – No significant intercept 26RKRC017 332544 6639216 422 -60 270 210 158 162 4.0 4.0m @ 0.70 g/t from 158m† 26RKRC018 332462 6639262 422 -60 270 162 48 52 4.0 4.0m @ 0.4 g/t from 48m 88 98 10.0 10.0m @ 0.6 g/t from 88m† 96 97 1.0 incl. 1.0m @ 1.9 g/t from 96m† Notes: Coordinates GDA94 Zone 51. Intercepts are reported using a 0.3 g/t Au cut-off grade and maximum 4m internal dilution, with internal intervals above 1.0 g/t Au reported as “incl.”. Results are from 4m composite samples except those marked †, which are from 1m samples. Down hole lengths are reported; true widths are not known but are interpreted to approximate the reported widths given the -60° westerly drilling into east dipping mineralisation. 26CRC014V was drilled vertically due to limited site line clearing. ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN JORC Code, 2012 Edition – Table 1: 2026 Capricorn and Rockland Stage 2 Drilling Section 1 Sampling Techniques and Data Criteria JORC Code explanation Commentary Sampling techniques • Nature and quality of sampling (e.g., 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.). • 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 Material to the Public Report. One-metre RC samples were collected using the rig-mounted cone splitter, with approximately 2-3 kg retained in individual calico bags. Four-metre composite samples were collected using a PVC spear from four consecutive one-metre bulk samples. Intercepts marked in Appendix 1 are calculated from one-metre sample assays. Samples submitted to SGS Perth were crushed and a representative 400g subsample was placed in a jar for photon assay. The sample preparation and sample sizes are considered appropriate for this stage of exploration. Retained one-metre samples from mineralised composite intervals are being submitted for individual assay. Drilling techniques • Drill type and details (e.g. 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.). RC drilling by Nexgen Drilling Pty Ltd using a track mounted Schramm T450 RC rig with a face-sampling hammer bit 5-1/4 inches. Holes drilled at -60° toward 270°, except 26CRC014V, which was drilled vertically. Drill sample recovery • Method of recording and assessing sample recoveries and results. • 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. Sample recovery and moisture (dry, moist or wet) were visually assessed and recorded for each metre. Recoveries were typically good. All reported intervals were drilled dry. The cyclone and splitter were cleaned regularly to avoid contamination. No relationship between recovery and grade has been observed. Logging • Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. • Whether logging is qualitative or quantitative in nature. • The total length and percentage of the relevant intersections logged. All holes were geologically logged in full by the site geologist for lithology, weathering, alteration, veining and mineralisation. Logging is qualitative. Chips were retained in chip trays. Sub-sampling techniques and sample preparation • If core, whether cut or sawn and whether quarter, half or all core taken. • If non-core, split type, and whether sampled wet or dry. • For all sample types, the nature, quality and appropriateness of the sample preparation technique. • Quality control procedures adopted to maximise representivity of samples. • Measures 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 sampled. 1m samples split at the rig by cone splitter. 4m composites collected by PVC spear from the bulk 1m samples. Laboratory preparation of crush, photon assay jar fill. Sample sizes are considered appropriate for the grain size of the material at this stage of exploration. The retained 1m cone-split samples from all mineralised intervals are being assayed to verify the composite results. ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Criteria JORC Code explanation Commentary Quality of assay data and laboratory tests • 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 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 (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy and precision have been established. Samples were submitted to SGS Perth for photon assay, considered a total gold technique. Certified references were inserted at a rate of 1 in 25. Field duplicates inserted at a rate of 1 in 50. QC results were within acceptable limits. Verification of sampling and assaying • The verification of significant intersections by either independent or alternative company personnel. • The use of twinned holes. • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. • Discuss any adjustment to assay data. Significant intersections have been reviewed by the Competent Person. No twinned holes. Data captured in LogChief and transferred to the Company’s database. No adjustments were made to assay data. Location of data points • Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. • Specification of the grid system used. • Quality and adequacy of topographic control. Collars located by handheld GPS (±3m), MGA94 Zone 51. RL from Geoscience Australia DTM. Downhole surveys by gyro at 5m intervals. Data spacing and distribution • Data spacing for reporting of Exploration Results. • Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. • Whether sample compositing has been applied. Capricorn: holes were drilled on east-west lines, mostly about 50m apart, with holes 20m to 90m apart along each line. Rockland: Stage 2 holes test down dip and strike positions around existing drill sections, which are spaced approximately 100m–150m apart. The 2026 results have not been used in a Mineral Resource estimate. 4m compositing has been applied as described above. Orientation of data in relation to geological structure • Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. • If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. Holes drilled at -60° to 270°, approximately perpendicular to the interpreted east dipping mineralisation (about 30° at Capricorn and 40° at Rockland). 26CRC014V was drilled vertically. There is insufficient data at this stage to fully assess sampling bias. Sample security • The measures taken to ensure sample security. Samples bagged, sealed in larger zip-tied bags and delivered to the laboratory by Company personnel. Audits or reviews • The results of any audits or reviews of sampling techniques and data. None. ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Section 2 Reporting of Exploration Results (Criteria listed in the preceding section also apply to this section) Criteria JORC Code explanation Commentary Mineral tenement and land tenure status • Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. • The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. Capricorn: granted Mining Lease M24/1004 which Dundas has an option to earn 85%, Maritana Minerals Limited 15% free- carried. A heritage survey over Capricorn was clear (ASX: 21 July 2026). Rockland: granted Mining Lease M24/974, acquired by Dundas through exercise of its option from Rockland Pty Ltd. The leases are in good standing. Approved Programmes of Work are in place. Exploration by other parties • Acknowledgment and appraisal of exploration by other parties. Capricorn: previous explorers include Heron Resources (2006- 2010), Vale (2008) and Horizon Minerals Limited (from 2017), whose work included soil sampling, aircore and RC drilling and the Inferred Mineral Resource reported on 28 September 2022. Dundas drilled RC holes at Capricorn in December 2023 (ASX: 6 February 2024). Rockland: previous drilling around the lease was completed by Aberfoyle (1987, RAB), Paddington Gold Pty Limited (2000- 2001 reporting period, RAB and RC) and Rockland Pty Ltd (RC). Historical Paddington hole TLRC042 was reported by Dundas on 23 September 2026, with its own JORC Table 1. Geology • Deposit type, geological setting and style of mineralisation. The exploration target is Archaean orogenic lode gold on the western limb of the Bardoc-Broad Arrow syncline. Mineralisation at Rockland occurs in discrete shoots interpreted to dip east at approximately 40°. At Capricorn, gold mineralisation is interpreted to be controlled by structures dipping east at about 30° (ASX: 3 September 2026). Capricorn and Rockland lie on the same interpreted north-south structural corridor, but continuity between them has not been established by drilling. Drill hole information • A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill hole collar o elevation or RL of the drill hole collar o dip and azimuth of the hole o down hole length and interception depth o 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. Tabulated in Appendix 1. Data aggregation methods • In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. • Where aggregate intercepts incorporate short lengths of high-grade results and longer lengths of low-grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. • The assumptions used for any reporting of metal equivalent values. 2026 intercepts are length-weighted averages of 4m composite assays, or 1m sample assays where marked in Appendix 1, using a 0.3 g/t Au cut-off and maximum 4m internal dilution. Internal intervals above 1.0 g/t Au are reported as “incl.”. No top cuts applied. No metal equivalents reported. ASX ANNOUNCEMENT Dundas Minerals Limited Suite 13, 100 Railway Rd T: +61 (08) 9481 0389 ACN: 640 432 819 Daglish WA 6008 E: admin@dundasminerals.com ASX: DUN Dundas Minerals Li