Announcement PDF 1 ASX CODE: DUN Leveraging into Western Australian Gold - Existing resources and blue- chip exploration portfolio Corporate Presentation March 2026 2 Important Information Disclaimer • This presentation has been prepared by Dundas Minerals Ltd (ACN 640 432 819) (Dundas) and is current as at the date of this document. The information contained in this presentation is for informational purposes only and does not constitute an offer to issue, or arrange to issue, securities or other financial products. The information contained in this presentation is not investment or financial product advice and is not intended to be used as the basis for making an investment decision. The presentation has been prepared without considering the investment objectives, financial situation or needs of any particular person. Before making an investment decision, you should consider, with or without the assistance of a financial adviser, whether an investment is appropriate considering your particular investment needs, objectives and financial circumstances. Past performance is no guarantee of future performance. Any securities that may be issued by Dundas should be considered speculative and there is no guarantee implied or explicit that there will be a return on the capital invested or that any dividend will be paid or that there will be an increase in the price or value of Dundas’s shares in the future. • No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in this presentation. To the maximum extent permitted by law, none of Dundas, its directors, employees or agents, nor any other person accepts any liability, including, without limitation, any liability arising out of fault of negligence, for any loss arising from the use of the information contained in this presentation. In particular, no representation or warranty, express or implied is given as to the accuracy, completeness or correctness, likelihood of achievement or reasonableness or any forecasts, prospects or returns contained in this presentation nor is any obligation assumed to update such information. Such forecasts, prospects or returns are by their nature subject to significant uncertainties and contingencies. No New Information • For details about source of the information in this report relating to the Mineral Resource estimates for the Baden-Powell and Capricorn gold deposits, please refer to the Competent Person’s Statement (Appendix 1). Dundas confirms that it is not aware of any new information or data that materially affects the information included in the original announcements and that all material assumptions and technical parameters underpinning the Mineral Resource estimate continue to apply. • This document contains information extracted from ASX market announcements reported in accordance with the 2012 edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” (2012 JORC Code) and available for viewing at https://www.dundasminerals.com. Dundas confirms that it is not aware of any new information or data that materially affects the information included in any original ASX market announcement. Forward Looking Statements • Certain statements contained in this presentation, including information as to the future financial or operating performance of Dundas and its projects, are forward looking statements. Such forward looking statements: • may include, among other things, statements regarding incomplete and uncertain proposals or targets, production and prices, operating costs and results, capital expenditures, and are or may be based on assumptions and estimates related to future technical, economic, market, political, social and other conditions; • are necessarily based upon several estimates and assumptions that, while considered reasonable by Dundas, are inherently subject to significant technical, business, economic, competitive, political and social uncertainties and contingencies; and • involve known and unknown risks and uncertainties that could cause actual events or results to differ materially from estimated or anticipated events or results reflected in such forward-looking statements. • Dundas disclaims any intent or obligation to update publicly any forward-looking statements, whether as a result of new information, future events or results or otherwise. The words “believe”, “expect”, “anticipate”, “indicate”, “contemplate”, “target”, “plan”, “intends”, “continue”, “budget”, “estimate”, “may”, “will”, “schedule” and similar expressions identify forward looking statements. All forward looking statements made in this presentation are qualified by the foregoing cautionary statements. Recipients are cautioned that forward looking statements are not guarantees of future performance and accordingly investors are cautioned not to put undue reliance on forward looking statements due to the inherent uncertainty therein. • No representation is made that, in relation to the tenements the subject of this presentation, Dundas has now or will at any time in the future develop further resources or reserves within the meaning of the Australian Code for Reporting of Exploration Results, Mineral resources and Ore Reserves (The JORC Code). Cautionary statement • Certain information in this announcement may contain references to visual results. The Company draws attention to the inherent uncertainty in reporting visual results. Visual estimates of mineral abundance should never be considered a proxy or substitute for laboratory analyses where concentrations or grades are the factor of principal economic interest. Visual estimates also potentially provide no information regarding impurities or deleterious physical properties relevant to valuations. 3 CAPITAL STRUCTURE (Pro Forma)* Shares on Issue 218M Options (ex. $0.033 - $0.16) 80M Cash / Investments +$3M Convertible Note $1.0M Share Price (9 February 2026) $0.05 Market Capitalisation $11M EXPERIENCED LEADERSHIP TEAM Steve Formica - Chairman Jonathan Downes - Managing Director Graeme Purcell - Technical Director “New management with strong track record in value appreciation, exploration, development and financing” Corporate Overview * Subject to shareholder approval at the General Meeting to be held in April 2026. 4 • Romano – targeting “major” gold discoveries in frontier terrain environments, with proven large scale gold endowments nearby (+6M ounces of gold) • Kalgoorlie – targeting near term gold production opportunities from multiple advanced projects with open ended resources • Gerry Well – Early stage Greenfields project Key Project Centres and Company Focus 5 Romano – the next major discoveries are likely to continue in the frontier terrains (Hemi, Nova, Gruyere) • The Romano Project, North-Eastern WA Goldfields hosts early exploration targets, including: • Gruyere North ( 1km on strike from Gruyere +6M Oz mine)* • Bloodwood ( 5km soil anomaly with a best air core drill hole returned of 12m @ 3.3 g/t gold )* • Brahman prospect ( large scale intrusion related target with a best intercept of 2m @ 3.9 g/t gold )* • Targeting large scale gold mineralisation in frontier terrains of the WA goldfields * ASX 30/12/2025 Kalgoorlie – Blue chip terrain with supportive infrastructure and proven gold results and resources, targeting exploration driven growth and production • Several open-ended resources - last calculated in 2022, when the gold price averaged AUD$2,650/oz compared • Rockland - identified first pass 1,000m shallow gold mineralisation – unmined with results including 6m @ 3.3 g/t gold (potential resource following further drilling)** • Capricorn – unmined open-ended resource of 23,000 oz of gold, with results including 12m @ 3.6 g/t gold from 28m (WDRC19031)*** • Baden-Powell - unmined open-ended resource of 26,000 oz of gold***, with results including 17m @ 3.0 g/t gold from 104m (BPRC1703-ASX:HRZ: 12/11/2019 “Regional Drilling confirms two new prospects at the Baden Powell and Windanya Project areas”) • Extensional and infill drilling imminent to advance resource and development studies • Substantial Nearby Infrastructure - numerous local Gold Processing Plants, proximity to Kalgoorlie, highway access nearby • Effectively previously unmined resources ** ASX 21/1/2025 *** ASX 30/4/2025 Two Priority Growth Centres 6 1. Romano Project • Immediately on strike of the Gruyere 6Moz gold mine • Huge position -800km2 land position across multiple poorly explored greenstone belts • Over 70km of prospective greenstone belts • Targeting large scale gold deposits in this frontier terrain • Mineralised prospects already identified through direct drilling by previous explorers 7 Romano Project – High Priority Drill Targets Romano Project – Bloodwood Exploration • Modelled shear hosted gold First pass soil sampling and shallow air-core drilling identified gold anomalism over 5km strike • Encouraging first drilling results • Single follow up Diamond Drilling returned encouraging result • Targeting large scale gold deposits • Prospects advanced through direct drilling by previous explorers and open to further exploration Refer to Appendix I for further information 8 Romano Project – Brahman Exploration • Modelled intrusive unit – targeting a Gruyere intrusion hosted analogue • First pass shallow air-core drilling identified gold anomalism • Follow up RC and Diamond Drilling returned encouraging results over 2km strike • Targeting large scale gold deposits • Prospects advanced through direct drilling by previous explorers and open to further exploration Refer to Appendix I for further information 9 10 2. Kalgoorlie - Three Advanced Gold Prospects • Capricorn - Resource • Baden Powell - Resource • Rockland - Discovery 11 Capricorn • Mineralisation: Multiple Loads 2m – 4m thick • Opportunity: Not previously mined – discovery stage • Strike: +250m • Resource: 659,300t @ 1.2g/t (0.5g/t cut-off)* • Vertical limit of resource : 135m • Open: North, South and at depth • Access: Proximal to the Goldfields Highway • Nearby Gold Deposits: Eureka (JAV:ASX) 3km north along strike, Zoroastrian (GEN:ASX) and Rockland 1.5km southwest. • Previous gold drill results include (ASX 6/2/2024) • 12m @ 3.6 g/t from 28m • 5m @ 6.6 g/t from 43m • 5m @ 6.2 g/t from 66m • Well positioned to potentially expand resources with further drilling and using higher gold prices. • Targeting a platform to assess for production *ASX 30/4/2025 12 • Mineralisation across the Kalgoorlie suite remains open at depth • Regional surface depletion down to approximately 30m, as shown in this cross section of the Capricorn project • Assets recently discovered and not previously mined or minimal production • Primary gold mineralisation at depth has not been adequately tested • The North-South mineralisation trend broadly aligns Capricorn, Rocklands and Aquarius on a single structural corridor Capricorn Cross Section 13 • Mineralisation: Sub vertical loads • Resource: 595,300t @ 1.2g/t (0.5g/t cut-off)* • Vertical Limit: Majority of resource within 100m of surface • Open: North and South, and at depth • Access: <1km from Goldfields Highway • Milling: ~30km from Paddington and multiple other gold processing plants • Tenure: Granted ML, no associated royalties • Well positioned to expand with further drilling, review for resource re-evaluation using higher gold prices and assess for production options • Previous gold drill results(ASX 13/2/2025) include: • 8m @ 2.8 g/t from 76m • 3m @ 5.7 g/t from 12m • 9m @ 4.0 g/t from 18m Baden-Powell *ASX 30/4/2025 14 • Located south of Aphrodite (>1.3m Oz Au – Genesis Minerals), southern extension of prospective greenstone / basalt contact • Strong north-south soil & auger gold anomalies, many of which remain untested, ie. Olympia Prospect • Mostly shallow air-core / RAB (~50m – 70m) – proven to be deeply weathered with depletion modelled up to 100m deep (similar to Aphrodite) • Olympia is a high priority target that likely displays depletion rendering much past shallow exploration ineffective Numerous Priority Exploration Targets 15 1km Mineralised Gold Trend – barely tested • Gold mineralisation open at depth • Impressive gold grades (ASX 21/1/2025) from first-pass Dundas drilling including: • 6m @ 3.3g/t Au from 78m • 5m @ 2.3g/t Au from 109m • 2m @ 5.6g/t Au from 74m • Mineralisation extends north into the Aquarius prospect? (3m @10.2 g/t gold from 109m) (ASX 6/2/2024) • Granted Mining Lease and no prior modern mining – this reduces strip ratios and potentially enhances economics. • No resources calculated Rockland – a New Discovery 16 • Rockland is emerging as part of a larger combined system with >1km Au trend at Rockland (granted M24/974) • Mineralisation open along strike and at depth • Down-dip potential across the ‘Rockland’ for maiden resource potential targeted • High-grade primary gold intercepts include*: • 6m @ 3g/t Au from 78m • 9m @ 4g/t Au from 69m • 5m @ 4g/t Au from 65m * (ASX 21/1/2025) Next Steps at Rockland Drilling planned March 2026 Company Strategy • Targeting district-scale discoveries in the frontier Romano (Yamarna region). • Consolidating shallow gold resources in the Kalgoorlie district. • The Kalgoorlie Projects are well positioned with supporting infrastructure and warrant further exploration and development studies • Capricorn Gold Resource – previously unmined, open ended and shallow • Baden-Powell Resource – practically unmined (very minor prospector pit), open ended and shallow • Rockland Gold Project – previously unmined, open ended and shallow. No resource yet but significant strike is highly encouraging 17 • Advancing near-surface deposits for contract mining. 18 ASX CODE: DUN Thank You +61 0 412 124 758 Suite 13 100 Railway Road Daglish, WA 6008 admin@dundasminerals.com facebook.com/people/Dundas- Minerals/100075968741064/ https://www.linkedin.com/company/dundas- minerals/ Leveraged WA Gold Focussed Gold Explorer Targeting Production Transition Project Inferred Material Tonnes Au g/t Oz Au Baden-Powell Oxide 75,000 1.19 2,900 Transition 61,000 1.04 2,000 Fresh 459,500 1.22 18,000 Total 595,000 1.2 23,000 Capricorn Oxide 313,100 1.23 12,400 Transition 138,800 1.24 5,500 Fresh 207,400 1.13 7,500 Total 659,300 1.2 25,500 Tonnages are dry metric tonnes. Minor discrepancies may occur due to rounding. Mineral Resource Estimates Baden-Powell and Capricorn Gold Projects reported at a 0.5g/t Au cut-off The above Mineral Resource Estimates comprise Inferred Mineral Resources, which are unable to have economic considerations applied to them, nor is there certainty that further sampling will enable them to be converted to Measured or Indicated Mineral Resources. Please refer to the Competent Persons Statement pursuant to these Mineral Resource Estimations for additional information. Competent Persons Statement The information in this announcement that relates to the Gerry Well project and historic drill holes is based on information compiled by Jonathan Downes (B.Sc.) (Geology), MAIG, an employee of Dundas Minerals Limited. Mr Downes has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking 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 the report of the matters based on this information in the form and context in which it appears. The information included in this report also relates to some information based on historic Exploration Results Mr Downes has not independently verified the historical assay data but considers the information suitable for inclusion to illustrate prospectivity. Mr Downes holds securities in the Company. The information in this announcement that relates to the Baden-Powell and Capricorn Gold Mineral Resources is extracted from and was originally reported in the ASX Announcement titled “Gold Resources Increase to 1.24m oz” published on 28 September 2022 by Horizon Minerals Limited (ASX: HRZ). And, in its report titled “Group Minerals Resources Statement - Amended” published on 1 August 2024, HRZ confirmed (page 24) that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the estimates published in the 28 September 2022 announcement continue to apply and have not materially changed. A copy of both announcements are available to view on the HRZ web site: www.horizonminerals.com.au. Furthermore, the Mineral Resources estimates for the Capricorn and Baden-Powell projects were undertaken by Mr Stephen Godfrey, a Fellow of the Australasian Institute of Mining and Metallurgy and a member of the Australian Institute of Geoscientists, who has sufficient experience of relevance to the styles of mineralisation and the types of deposits under consideration, and to the activities undertaken, to qualify as a Competent Person as defined in the ‘JORC Code 2012’. Mr Godfrey is a full time employee of HRZ and has consented to Dundas Minerals Limited reporting details of the Baden-Powell and Capricorn gold Minerals Resource Estimates in the form and context as set out in Appendix 1. The relationship between the Company and HRZ: Dundas Minerals has an option (expiring 9 month following the grant of Mining Lease application M 24/1004) to acquire an 85% Joint Venture Interest in various mineral tenements from HRZ, including tenements within which the Capricorn and Baden-Powell projects and gold deposits sit; for complete details refer to the Company’s ASX announcement dated 30 August 2023. 19 HoleID Easting Northing Depth (m) RL Dip Azi From (m) To (m) Interval (m) Au (g/t ) 17SRAC022 562393 6902983 68 413 -60 270 64 68 4 0.0262 18CWAC0920 551896 6922319 40 434 -60 273 21 32 12 3.31 including 20 24 4 9.53 18CWAC0944 551853 6921518 90 442 -60 270 76 80 4 0.24 18CWAC1059 551543 6923126 31 442 -60 270 16 20 4 0.31 18CWDD0028 551946 6922320 199.4 433 -60 270 114.00 114.70 1.70 3.29 18SRDD0012 561755 6904197 300.1 413 -60 70 128.08 129.00 0.92 2.25 18SRRC001 561803 6904210 160 413 -61 72 92 94 2 3.92 including 92 93 1 7.01 18SRRC002 562080 6903750 178 413 -60 72 27 29 2 1.30 18SRRC004 562375 6902974 220 414 -61 71 114 115 1 0.82 Appendix I Table of drill hole collars from the Romano Project (Slides 8 & 9) All drilling was completed by Gold Road Resources 20 Appendix I JORC Table 1 for the Romano Project Section 1 21 22 23 24 25 Section 2 26 27 28