St. George Mining Ltd. · ASX:SGQ
St. George Mining — 2025 Macquarie Western Australian Forum
27 slides from St. George Mining's conference presentation, Nov 6, 2025
Slide 1: ASX Release: St George at the Macquarie Western Australian Forum
ASX RELEASE. 6 November 2025 St George at the Macquarie Western Australian Forum St George Mining Limited (ASX: SGQ) (“St George” or “the Company”) is participating in the 2025 Macquarie Western Australian Forum – an investor forum being held by Macquarie Bank this week in Perth. Attached is a copy
Slide 2: Niobium. Rare earths. World class.
2025 MACQUARIE WESTERN AUSTRALIAN FORUM 6 November 2025 Niobium. Rare earths. World class.
Slide 3: Disclaimer
Disclaimer Forward-Looking Statements: This Presentation may include forward-looking statements. Forward-looking statements include, but are not limited to, statements concerning St George’s planned exploration program and other statements that are not historical facts. Although St George believes t
Slide 4: Investment Highlights: St George brings a new generation of mining to Araxá
Araxá Project St George brings a–new Investment generation ofHighlights mining to Araxá, Minas Gerais, Brazil Advanced and de-risked world-class niobium-REE opportunity • JORC resource1 announced by St George confirms globally significant high-grade deposits of World-class resource niobium and rare
Slide 5: World class resource and location
World class resource and location ASX: SGQ | St George Mining Limited 4
Slide 6: World-class JORC resource
World-class JORC resource1 Globally significant niobium and rare earths deposits Niobium resource TREO resource 41.2 Mt at 0.68% Nb₂O₅ (6,800ppm Nb₂O₅) 40.6 Mt at 4.13% TREO (41,300ppm TREO) comprising (at a cut-off of 0.2% Nb₂O₅): comprising (at a cut-off of 2% TREO): Classification Million tonnes
Slide 7: Favourable project logistics
Favourable project logistics Existing infrastructure supports fast-track development MOSAIC Facilities St George’s ARAXÁ Project Located in Minas Gerais – a Tier 1 mining jurisdiction Numerous mining operations located near the Araxá Project 6km from Araxá city with an experienced workforce and mini
Slide 8: Favourable deposit characteristics
Favourable deposit characteristics Free-digging mineralisation from surface supports open-pit mine Grades up to 82,970ppm (8.29%) Nb₂O₅ and 329,800ppm (32.98%) TREO with results that include:1 43m @ 1.5% Nb2O5 from surface 60m @ 11.1% TREO from surface 20m @ 2.4% Nb2O5 from surface incl. 30m @
Slide 9: Successful expansion drilling
Successful expansion drilling +10,000m drilling program in progress • Auger drilling – first pass reconnaissance drilling 1km east of MRE has discovered a new high-grade rare earths zone with grades upto 13.4% TREO1 • 2,700m of RC drilling; mostly resource definition drilling to upgrade Inferred to
Slide 10: Project delivery – highly experienced team
Project delivery – highly experienced team ASX: SGQ | St George Mining Limited 9
Slide 11: Project Delivery Team
Project Delivery Team In-country experts with combined +100 years experience Brazil Team, Araxa Brazil Team, Perth Director, ESG and Technical Development: Thiago Amaral Director, Corporate Development: Caue (Paul) Araujo Engineer with more than 17 years experience in niobium and critical metals Exp
Slide 12: Community engagement
Community engagement St George contributes to the community The community in and around Araxá is experienced in the permitting of mining operations and working closely with mining companies Strong support shown for St George with aim of ensuring sustainable project development, long- term jobs St
Slide 13: Development partnerships
Development partnerships Processing, product development and marketing MagBras – Permanent magnet making facility in Brazil US strategic alliance St George is a first mover in Brazil’s emerging rare earths supply chain REAlloys Inc – a leading magnet materials maker in the US – to work making the fi
Slide 14: Pilot plant co-venture with CEFET
Pilot plant co-venture with CEFET Downstream studies in conjunction with leading technology institution St George Technological Centre in Araxá campus of CEFET Community contribution by St George St George and CEFET – The Federal Center for Technological Education of St George will finance construct
Slide 15: Critical metals with favourable market dynamics
Critical metals with favourable market dynamics ASX: SGQ | St George Mining Limited 14
Slide 16: Niobium – Future Facing Commodity
Niobium – Future Facing Commodity Essential for modern high-tech applications and weapons Niobium is produced into Ferroniobium (88% of demand) and Niobec Niobium oxide (12%)1 Quebec, Canada Ferroniobium Niobium Oxide 9% CMOC • Widely used in the steel • Niobium oxide is produced Goias, Brazil indus
Slide 17: Rare earths – fragile supply chains
Rare earths – fragile supply chains Geopolitical background creates opportunity for emerging producers outside China to create shareholder value 6.0% Mountain Pass, Company St George Lynas MP Arafura MP.NYSE Market cap and A$370 million A$15.5 billion US$11.4billion A$880 million Operating 5.0% stoc
Slide 18: Development initiatives underway
Development initiatives underway Strong newsflow • Two mining concession applications and one exploration permit. Licencing progresses Permitting Process in 2025 and 2026 • Engagement with Government, community and licensing authorities. Q2 to Q4 2025 – new • St George commenced expansion and resour
Slide 19: Company Overview
Company Overview Led by an experienced Board, the share price has responded favourably to the Araxá acquisition Company Snapshot1 A$72.5 million fund raising announced in October 2025: ASX Code SGQ • A$50m institutional placement at A$0.10 per share; completed Share Price A$0.105 • A$22.5m strategic
Slide 20: Building a globally significant niobium-REE mining company
ST GEORGE MINING LIMITED Building a globally significant niobium-REE mining company ASX: SGQ | St George Mining Limited 19
Slide 21: Appendix A - References
Appendix A - References Slides 3 and 5: Slide 12 1. See our ASX Release dated 1 April 2025 entitled “High-Grade Niobim and REE 1. See our ASX Release dated 7 October 2025 entitled ‘Government Support for JORC Resource for Araxa” for details on the JORC resource. Pilot Plant at Araxa’ Slide 6 Slide 1
Slide 22: Appendix B – Key Risks
Appendix B – Key Risks The future performance of the Company and the value of its shares may be influenced by a range of factors, many of which are largely beyond the control of the Company and its directors. Key risks associated with the Company’s business and the industry in which it operates as w
Slide 23: Appendix B – Key Risks (continued)
Appendix B – Key Risks (continued) The future performance of the Company and the value of its shares may be influenced by a range of factors, many of which are largely beyond the control of the Company and its directors. Key risks associated with the Company’s business and the industry in which it o
Slide 24: Appendix B – Key Risks (continued)
Appendix B – Key Risks (continued) The future performance of the Company and the value of its shares may be influenced by a range of factors, many of which are largely beyond the control of the Company and its directors. Key risks associated with the Company’s business and the industry in which it o
Slide 25: Appendix C – References to previous announcements
Appendix C – References to previous announcements This ASX announcement contains information extracted from the following reports • 5 March 2025 Niobium and Downstream Processing Study at Araxa which are available on the Company’s website at www.stgm.com.au: • 1 April 2025 High-grade Niobium and REE
Slide 26: Competent Person Statement
Competent Person Statement Competent Person Consent - MRE The information in this Presentation that relates to Mineral Resource Estimate and historical/foreign results is based upon, and fairly represents, information and supporting documentation reviewed and compiled by Mr. Beau Nicholls, a Compete
Slide 27: Competent Person Statement
Competent Person Statement Competent Person Consent - Historical and Foreign Results The information in this Presentation that relates to historical and foreign results is based upon, and fairly represents, information and supporting documentation reviewed by Mr. Carlos Silva, Senior Geologist emplo
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