27 slides from St. George Mining's conference presentation, Mar 3, 2026
Slide 1: ASX Release: St George at PDAC 2026, Toronto
ASX RELEASE. 3 March 2026 ST GEORGE AT PDAC 2026, TORONTO St George Mining Limited (ASX: SGQ) (“St George” or the “Company”) is pleased to announce that it is participating in PDAC 2026 – one of the largest mining events globally, organised by the Prospectors and Developers Association of Canada. Th
Slide 2: Investor Presentation PDAC 2026: Niobium. Rare earths. World class.
PDAC, 3 March 2026 Investor Presentation For personal use only 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: Company Overview
Company Overview Led by an experienced Board, St George has been transformed into a global player in niobium and rare earths Company Snapshot 2025 – Transformational year: For personal use only ASX Code SGQ • Market cap rises from A$25m to +A$500m Share Price1 A$0.16 • Hancock Prospecting becomes la
Slide 5: World class resource and location
World class resource and location For personal use only ASX: SGQ | St George Mining Limited 4
Slide 6: World-class JORC resource
World-class JORC resource1 Major resource upgrade announced 3 March 2026 Table 1: Total JORC 2012 MRE – Grade Tonnage Report using a 2% TREO cut-off. 1 For personal use only Resource Million Tonnes (Mt) TREO (%) MREO (%) Nb₂O₅ (%) Classification Measured 8.02 5.23 0.95 1.06 Indicated 21.46 4.31 0.80
Slide 7: Favourable location
Favourable location Outstanding project logistics for fast-track development MOSAIC St George’s For personal use only Facilities ARAXÁ Project St George brings a new generation of mining to Araxá, Minas Gerais, Brazil Located in Minas Gerais – a Tier 1 mining jurisdiction Several mining operations l
Slide 8: Successful expansion drilling
Successful expansion drilling Oblique view of For personal use only the project tenure showing planned drill holes and maiden resource outline, highlighting high- grade intercepts in recent drilling and the significant amount of drilling planned outside the maiden resource envelope (red labels are t
Slide 9: Expansion drilling continues to redefine the resource
Expansion drilling continues to redefine the resource +10,000m drilling program in progress – now extended indefinitely • East Araxá discovery – first pass auger drilling 1km east of MRE has discovered a new high-grade rare earths zone with grades up to 13.4% TREO with follow-up RC drilling confirmi
Slide 10: Favourable deposit characteristics
Favourable deposit characteristics High grades from surface – up to 8.29% Nb₂O₅ and 32.98% TREO1 Favourable features Deposit starts from surface; amenable to open-pit mining – 100% is within 120m from surface2 For personal use only Mineralisation is free-digging (i.e. no blasting, minimum crushing/g
Slide 11: Project delivery – highly experienced team
Project delivery – highly experienced team For personal use only ASX: SGQ | St George Mining Limited 10
Slide 12: Project Delivery Team
Project Delivery Team In-country experts with combined +100 years experience Brazil Team, Araxa Brazil Team, Perth Thiago Amaral Director, Corporate Development: Caue (Paul) Araujo For personal use only Director, ESG and Technical Development: Engineer with more than 17 years experience in niobium a
Slide 13: Development initiatives
Development initiatives Rare earth production already de-risked Pilot plant study has successfilly processed Araxá REE US strategic alliance - REalloys 9-month pilot plant study before St George became owner produced rare REalloys Inc – a leading magnet materials maker in the US – to work For person
Slide 14: 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 For personal use only St George has initiated socio-environmental projects focused on the local Araxá communit
Slide 15: 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 For personal use only St George and CEFET – The Federal Center for Technological Education of St George
Slide 16: Critical metals with favourable market dynamics
Critical metals with favourable market dynamics For personal use only ASX: SGQ | St George Mining Limited 15
Slide 17: Niobium – supply concentration
Niobium – supply concentration Essential for modern high-tech applications and weapons Niobium is produced into Ferroniobium (88% of demand) and Niobium oxide (12%)1 For personal use only Ferroniobium Niobium Oxide • Widely used in the steel • Niobium oxide is produced industry to create stronger, t
Slide 18: Rare earths – fragile supply chains
Rare earths – fragile supply chains Geopolitical background creates opportunity for emerging producers outside China to create shareholder value For personal use only Company St George Lynas MP Arafura 6.0% Mountain Pass, MP.NYSE Market cap and A$600 million A$20 billion US$11 billion A$1.25 billion
Slide 19: Development initiatives underway
Development initiatives underway Strong newsflow Licencing progresses For personal use only Permitting Process • Two mining concession applications and one exploration permit. in 2026 • Engagement with Government, community and licensing authorities. New drilling/assay results • St George commenced
Slide 20: Building a globally significant niobium-REE mining company
For personal use only 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 5, 7, 8 and 9: 1. See our ASX Releases dated 2 March 2926 “Major Resource Upgrade at Araxa” and dated 1 April 2025 “High-Grade Niobim and REE JORC Resource for Araxa” for Slide 16 details on the JORC resource; see our ASX Release dated 6 August 2024 entitled 1. Mordor
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 which • 24 June 2025 Strong Government Support for Araxa are available on the Company’s website at www.stgm.com.au: • 2 July 2025 Geophysics Underway at Araxa Niobium-REE
Slide 26: Competent Person Statement
Competent Person Statement Competent Person Consent – MRE The information in this ASX Release 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. Rodney Brown, a Competent
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