Stellar Resources Limited · ASX:SRZ
Stellar Resources — 2025 Diggers & Dealers Mining Forum
35 slides from Stellar Resources's conference presentation, Aug 4, 2025
Slide 1: Stellar Resources Company Presentation for 2025 Diggers & Dealers Mining Forum
ASX Announcement | ASX: SRZ 4 August 2025 Stellar Resources Company Presentation for 2025 Diggers & Dealers Mining Forum Stellar Resources Limited (ASX: SRZ, “Stellar” or the “Company”) is pleased to lodge its latest company presentation, which will be delivered as part of the 2025 Diggers & Dealers
Slide 2: Australia's Next Tin Mine
Australia’s Next Tin Mine Aiming to Become a Global Top 10 Tin Producer Company Presentation 4 August 2025 ASX:SRZ
Slide 3: Zeehan Townsite and Heemskirk Deposit
Zeehan Townsite Built on mining Heemskirk Deposit Proposed portal
Slide 4: Disclaimer
Disclaimer This presentation has been prepared by Stellar Resources Limited (ASX: SRZ) (SRZ or the Company). It contains general information about the Company’s activities current as at the date of the presentation. The information is provided in summary form and does not purport to be complete. Thi
Slide 5: Cautionary Statement
Cautionary Statement Scoping Study Parameters The Scoping Study referred to in this announcement has been undertaken for the purpose of ascertaining whether a business case can be made to proceed to more definitive studies on the viability of the Heemskirk Tin Project. It is a preliminary technical
Slide 6: Heemskirk is the highest-grade undeveloped tin project in Australia
Heemskirk is the highest-grade undeveloped tin project in Australia Project to be supplied by and third highest globally 100% Renewable Energy via 5 hydro power stations and Granville Harbour wind farm within 30km. Potential to rank as a top 10 global producer* and the second largest in Australia St
Slide 7: Corporate Snapshot
Corporate Snapshot Board 2,079M $0.017 $35.3M Mark Connelly | NON -EXECUTIVE CHAIR Shares On Issue Share Price Market Cap Corporate executive with over 35 years in mining and a wealth 31 July 2025 of leadership experience in the resources sector. Mr Connelly $6.14M Nil $29.2M has an outstanding trac
Slide 8: Tin Use
Tin Use Essential to everyday life Global tin use by application in 2023 ✶ Tin ranked as the No.1 metal best placed to benefit from new technology. Source: MIT; Rio Tinto, 2018; ITA ✶ Currently ~50% of all tin is used as solder in electronics. Solder is the ‘glue’ that connects everything electronic
Slide 9: Global Tin Supply Falling
Global Tin Supply Falling 2024 Tin Production Unencumbered offtake in a tier 1 jurisdiction (Australia) likely to be highly sought after Tin Concentrate Total 279,067* tonnes 2024 Tin Concentrate Production Percentage -4.36% down from 2023 Indonesia 19% Myanmar 8% DR Congo 9% Refined Tin Total Banne
Slide 10: LME Tin Spot Price and Stock Levels
LME Spot Tin Price and Stock Levels $55,000 12,000 Spot Tin Price (L) Stock Levels (R) $50,000 $45,000 10,000 $40,000 8,000 $35,000 LME Spot Tin Price (US$/t) LME Tin Stock Levels (Tonnes) $30,000 6,000 $25,000 Stellar Resources | Corporate Presentation | August 2025 $20,000 4,000 $15,000 $10,000 2,
Slide 11: Differentiated Growth on a Global Scale
Differentiated Growth on a Global Scale Path to becoming a global top 10 tin producer Tin concentrate producers ranked by 2024 tin output (tonnes) Company 2024 Global Location of Market cap Rank Notes Name Prod. (t Sn) Prod. % primary asset (AUD$)# 1 Minsur S.A. 39,851* 14.3% Peru A$5.11B Tier 1 Jur
Slide 12: Tin Sector M&A Activity
Oropesa Tin Project, Spain Tin Sector M&A Activity & Cleveland Tin Project, Tasmania May 2025 Highlights strong demand Metals X Ltd (ASX:MLX) acquired approx and tightening supply 19.75% of Elementos Limited (ASX:ELT) via A$5 million strategic placement1 Stellar Resources | Corporate Presentation |
Slide 13: Heemskirk Tin Project
Heemskirk Tin Project Strategic location with development optionality Ideal location to be developing Australia’s next tin mine ✶ World class fertile metal province → Over 100 years of mining with significant production of Tin, Lead, Silver, Nickel and Gold. ✶ Major underground operating mines → Ren
Slide 14: Heemskirk Mineral Resource
Heemskirk Mineral Resource Heemskirk Mineral Resources Estimate1 Highest grade undeveloped project in Australia with clear scope for resource growth High Grade Attractive metallurgy Resource upside Advanced permitting High-grade zones defined 97% tin contained Deposits open at depth Project is on St
Slide 15: Scoping Study – The Base Case
Scoping Study – The Base Case… Materially improved PFS economics expected to underpin standalone project Proposed Heemskirk Tin Processing Plant 2024 Base Case (pre-tax) ~1,900 tpa payable tin Initial Mine Life 12 year Average Annual Production 350kt LOM Tin in Concentrate +22kt ROAD FROM DECLINE TO
Slide 16: Mineral Resource Conceptual Mine Plan
Mineral Resource Conceptual Mine Plan Driving Upside Potential Increase in mining inventory Queen Hill Portal 1,180m Rl Vent Shaft 1150m Rl Scoping Study used indicated resource only, Queen Hill (Upper) Severn Vent Shaft upside into Prefeasibility Study Above 1,100m Rl Increase Indicated Resource th
Slide 17: Mineral Resource Conceptual Mine Plan
Mineral Resource Conceptual Mine Plan Driving Upside Potential Increase in mining inventory Queen Hill Portal 1,180m Rl Vent Shaft 1150m Rl Scoping Study used indicated resource only, Queen Hill (Upper) Severn Vent Shaft upside into Prefeasibility Study Above 1,100m Rl Increase Indicated Resource th
Slide 18: Resource Upgrade – Drilling Underway
Resource Upgrade – Drilling Underway Growth and high-grade tin potential Stellar Resources | Corporate Presentation | August 2025 Refer to ASX Announcement 4 September 2023 – Heemskirk Tin Project MRE Update. ASX:SRZ | 17
Slide 19: Resource Upgrade – Drilling Success
Resource Upgrade – Drilling Success Queen Hill deposit – growth and high-grade tin potential ✶ New drilling delivers wide high-grade tin zones below indicated resource, 23.3m @ 2.20% Sn ✶ DHEM conductor located south of section along strike for drill testing ✶ Positive DHEM testing of historical min
Slide 20: Resource Upgrade – Drilling Success
Resource Upgrade – Drilling Success ZQ170 Queen Hill deposit – growth and high-grade tin potential 17m @ 1.79% Sn ZQ169 inc 7.90m @ 2.74% Sn ZQ170 5.3m @ 1.85% Sn ✶ Drilling delivers high-grade results outside the Indicated Category ZQ173 ZQ181 ✶ Extensions at depth confirmed and open 23.3m @ 2.20%
Slide 21: Resource Upgrade – Drilling Success
Resource Upgrade – Drilling Success Severn deposit – growth and high-grade tin potential ✶ New drilling delivers wide high-grade tin zone below indicated resource, 20.9m @ 1.97% Sn B B’ ZQ166 20.9m @ 1. 97% Sn Stellar Resources | Corporate Presentation | August 2025 ZS187W ZS187 Wedge Hole Completed
Slide 22: Ore Sorting – Excellent Results Across Severn Deposit
Ore Sorting – Excellent Results Across Severn Deposit Ore Sorting XRT Flow Sheet ✶ High-grade product generated: ▪ Head grade increased to 1.65% Sn from 0.70% Sn average (2.4 x uplift) Stellar Resources | Corporate Presentation | August 2025 ▪ 84.7% Sn recovery achieved ▪ 64.2% of the mass rejected
Slide 23: Ore Sorting – Classification
Stellar Resources | Corporate Presentation | August 2025 Ore Sorting – Classification
Slide 24: Development Options – Reducing Environmental Impact
Development Options – Reducing Environmental Impact MOU signed on existing Infrastructure ✶ MOU signed with Australian Hualong Pty Ltd over Heemskirk and Surrounding Infrastructure Comstock Plant located adjacent to Heemskirk. ✶ On-site tailings storage facilities (TSF), a water supply, grid power,
Slide 25: East Renison Project
East Renison Project ✶ Adjoins the Renison Tin Mine mining lease1 and covers the interpreted continuation of the Federal-Bassett and Montezuma Faults. ✶ These faults are main conduits for hydrothermal fluids that play an important part in the localisation of significant mineralisation in the distric
Slide 26: Tin Rock Chips Antimony Rock Chips
Tin Rock Chips Antimony Rock Chips Stellar Resources | Corporate Presentation | August 2025 East Renison Project Rock Chip Samples Refer to SRZ ASX Announcement 29 July 2025 – East Renison Project Update
Slide 27: Heemskirk Tin Project Development pathway
Heemskirk Tin Project Development pathway De-risking delivered in the last 18 months Reconfigured Board to drive transitional strategy from explorer to developer Successfully raised $13.2m. Fully funded to advance development strategy Reinitiated Baseline Studies 9,500m resource extension & PFS dril
Slide 28: Heemskirk is the highest-grade undeveloped tin project in Australia
Heemskirk is the highest-grade undeveloped tin project in Australia and third highest globally Potential to rank as a top 10 global producer* and the second largest in Australia Stable tier-1 jurisdiction in Western Tasmania with a strong mining history, significant processing capacity and quality i
Slide 29: Thank you
Australia’s Next Tin Mine Thank you Please visit us at Booth #6 ASX:SRZ
Slide 30: North Scamander Project
North Scamander Project High-grade discovery ✶ Located in the Scamander Mineral Field in Northeast Tasmania. ✶ Numerous high-priority drill ready targets including North Scamander and Pinnacles. ✶ Stream sediment and soil Geochem returned significant rock-chip results up to 1.1% tin. ✶ Outcropping m
Slide 31: North Scamander Project
North Scamander Project High-grade discovery ✶ Exploration drill hole (NSD005) returned a significant new high-grade Ag-Sn-Zn-Pb-In polymetallic discovery. ✶ 32.0m @ 141 g/t Ag, 0.34% Sn, 3.8% Zn, 2.0% Pb, 77 g/t In, 19 g/t Ga from 130.0m inc. o 5.0m @ 495 g/t Ag, 1.04% Sn, 5.2% Zn, 7.1% Pb, 113 g/t
Slide 32: Appendix – 2024 Scoping Study
Appendix 1 – 2024 Scoping Study Summary of Technical and Financial Parameters Capital Cost Summary Tin Price Sensitivity Unit Total LOM (A$M) (US$M) Tin Price (US$/t Sn) Mining 11 7 26,000 28,000 30,000 32,000 34,000 Ore Production (kt) 3,894 Processing & Surface Infrastructure 40 27 NPV Pre Tax 87
Slide 33: Appendix – Heemskirk Mineral Resource Estimate
Appendix 2 – Heemskirk Mineral Resource Estimate September 2023 Large high-grade 47% of MRE defined in High-grade zones St Dizier Satellite tin resource. Indicated category. defined in all deposits. Tin Project 7.48Mt @ 1.04% Sn 36.99kt of contained tin Mine plan accessing higher-grade 1.20Mt @ 0.69
Slide 34: Appendix – Heemskirk Tin Project Benchmarking Assumptions
Appendix 3 – Heemskirk Tin Project Benchmarking Assumptions As of 20/03/2025 Measured Indicated Inferred Total (M&I&I) Resource Resource Project Tonnes Grade Contained Tonnes Grade Contained Tonnes Grade Contained Resource Company Project Country Source Date Products Grade Contained Stage (Mt) (%) T
Slide 35: Contact Us
Contact Us Simon Taylor Managing Director E: simon@stellarresources.com.au M: +61 409 367 460 Jason Mack White Noise Communications E: jason@whitenoisecomms.com M: +61 400 643 799 ASX: SRZ
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