Gateway Mining Limited · ASX:GML
Gateway Mining — Resource Rising Stars Gold Coast 2025
20 slides from Gateway Mining's conference presentation, September 2025
Slide 1: Building the next emerging mid-tier Western Australian gold company
1 Building the next emerging mid-tier Western Australian gold company • Transformational acquisition of Yandal Gold Project • Strong balance sheet to fund exploration & growth Resource Rising Stars Gold Coast Presentation | September 2025 Andrew Bray, Executive Chairman 1
Slide 2: Important Information and Disclaimer
2 Important Information and Disclaimer Forward Looking Statements ▪ This presentation has been prepared by Gateway Mining Ltd (GML). The information contained in this presentation is a professional opinion only and is given in good faith. Certain information in this document has been derived from th
Slide 3: Highly Successful and Experienced Leadership Team
3 Highly Successful and Experienced Leadership Team ▪ +15 years experience in formation, financing and development of natural resources companies, including Andrew Bray Strickland Metals Ltd, Silver Mines Ltd, Futura Resources Ltd, amongst others. Executive Chairman ▪ Former Chief Executive Officer
Slide 4: A busy three weeks…
4 A busy three weeks… Since completion of the acquisition, price sensitive news flow includes: ▪ 26 August: New Board appointments and resignations New Management appointed ▪ 26 August: New shear zones identified at the Yandal Project and deal completed ▪ 29 August: Key mineralised trend identified
Slide 5: Corporate Summary
5 Corporate Summary CAPITAL STRUCTURE ASX Ticker GML Shares on issue 1,908,820,295 Options on issue1 89,495,985 Pro-forma cash balance (30 June 2025) $3.8M Pro-forma BTR Shareholding2 $9.8M Share Price $0.065 Market Capitalisation $124.1M 1. 72,558,083 options expiry 15/12/2026 at $0.033 per option
Slide 6: Discovery New Shear Zones
6 Discovery New Shear Zones Regional scale fertile exploration ground identified ▪ Historically, work focused almost exclusively on Celia Shear zone (main regional shear). ▪ Often, the more significant mineralisation is found on ‘splays’ off the main shear. ▪ Aeromagnetic and gravity surveying recen
Slide 7: Key Target Areas
7 Key Target Areas Priority regional target zones have potential for major discoveries ▪ Great Western ▪ Mustang ▪ Dusk ‘til Dawn
Slide 8: Great Western
8 Great Western High priority splay corridor with gold anomalism untested by drilling ▪ Drilling by previous holder targeted the intrusion itself – no follow up. ▪ Extremely strong Mo-Bi-Te anomalism remained unexplained. ▪ GML soil sampling and lag sampling identified key gold trends.1 ▪ Mafic-inte
Slide 9: Great Western
9 Great Western Confirmation of significant gold mineralisation Cautionary Statement: 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 pot
Slide 10: Great Western
10 Great Western High priority splay corridor with gold anomalism untested by drilling 10
Slide 11: Key Target Areas
11 Key Target Areas Priority regional target zones have potential for major discoveries ▪ Great Western ▪ Mustang ▪ Dusk ‘til Dawn
Slide 12: Mustang
12 Mustang Analogous Horse Well camp identified at Mustang ▪ Multielement geochemistry by GML over last month accurately mapped key lithologies. ▪ Same contact position immediately to the south hosts high grade mineralisation. ▪ Historic BOH +0.1g/t Au identified in old RAB and aircore drilling – no
Slide 13: Pony, Colt, Haflinger
13 Pony, Colt, Haflinger Multiple intrusions immediately north of Mustang ▪ Recent gravity modelling delineated three intrusions immediately north of Mustang – Pony, Colt and Haflinger. ▪ Very high structural complexity – shear zone kinks and flexures around intrusions, cross-cut by NE structures. ▪
Slide 14: Key Target Areas
14 Key Target Areas Priority regional target zones have potential for major discoveries ▪ Great Western ▪ Mustang ▪ Dusk ‘til Dawn
Slide 15: Dusk 'til Dawn
15 Dusk ‘til Dawn Advanced gold targets – potential for major discovery ▪ Extensive geophysical work has defined the Eastern and Western intrusions.1 ▪ Alteration and large Au-Mo-Cu-Bi- Te geochemical trends coincident with intrusive features. ▪ Very large hydrothermal system. ▪ IP survey currently
Slide 16: Horse Well Mineral Resources
Horse Well Mineral Resources ▪ Solid resource base from which to build more substantial gold resource. ▪ Mineralisation from surface. ▪ Remains open at depth and along strike. ▪ Oxide + transition inferred mineral resource of 103k ozs @ 1.8 g/t Au.1 ▪ Combined open pit mineralisation of 278k ozs @ 1
Slide 17: Other Projects – Glenburgh South
17 Other Projects – Glenburgh South Strategic Acquisition in High Prospective location ▪ Adjacent to Benz Mining Corp’s Glenburgh Project. ▪ Early signs of similar mineralisation. ▪ Repeat fault structure to the south of Glenburgh. ▪ Airborne magnetic survey and surface sampling programs planned. Re
Slide 18: Summary
18 Summary
Slide 19: Appendix A: Yandal Inferred Mineral Resource Estimates
19 Appendix A: Yandal Inferred Mineral Resource Estimates Prospect Tonnes (t) Au (g/t) Au (oz) Cut-off Palomino Pit 1,963,000 1.84 116,000 0.5 Palomino UG 155,000 2.69 13,500 2.0 Palomino Total 2,118,000 1.90 129,500 - Warmblood 1,656,000 2.37 126,000 0.5 Filly 581,000 1.15 21,500 0.5 Bronco 324,000
Slide 20: Thank You
20 Thank You Contact Details B1/431 Roberts Road, Subiaco WA 6008, Australia info@gatewaymining.com.au +61 8 6383 9969 www.gatewaymining.com.au
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