Slide 1: December 2025 Quarterly Results Presentation
For personal use only December 2025 Quarterly Results Presentation Rasp & Pinnacles Ag-Pb-Zn Mines Consolidating one of Australia’s great mining jurisdictions
Slide 2: Important Notice & Disclaimer
Important Notice & Disclaimer Summary information This presentation has been prepared by Broken Hill Mines Limited (BHM or the Company) relating to the operation and Not a recommendation or financial product advice For personal use only development of the Rasp Mine and the Pinnacles Mine in Broken H
Slide 3: Growing Silver Exposure Strategy
Broken Hill Mines’ 100% Metal Value Contribution Within ZnEq Grade at Current Spot Silver Price1 Growing Silver For personal use only Zinc Exposure Strategy Zinc Zinc Lead BHM provides investors with Lead Gold significant & increasing exposure to silver production 50% revenue, allowing investors to
Slide 4: Board and Maintaining a Strong Balance Sheet & Tight Capital Structure
Board Maintaining a Strong Balance Track record in developing & operating world-class mature mines Completed reverse listing via the takeover of ASX-listed Coolabah Metals Ltd Patrick Walta Sheet & Tight Capital Structure Executive Chair For personal use only Experience in M&A & large-scale Ag-Pb-Zn
Slide 5: BHM December 2025 Quarter Results Summary
BHM December Completed 2025 reverse listing via the Coolabah Metals Ltd takeover Quarter of ASX-listed Results Summary For personal use only Material improvement across all core Performance Summary Units Sep 2025 Qtr Dec 2025 Qtr % Change production and financial metrics Rasp Operations Highest quar
Slide 6: BHM is Consolidating the Famous Broken Hill Ore Body
BHM is Consolidating the Famous Broken Hill Ore Body For personal use only BHM now controls two of three assets covering the largest & richest silver-lead-zinc ore Continuous ore body growth 300Mt Resource (15% Zn+Pb) Produced >1 Billion oz Ag, body in the world: & mining for 140 years & 300g/t Ag ~
Slide 7: Rasp Mine
Rasp Mine High-grade Main Lode ore feed now online For personal use only 7
Slide 8: Rasp Mine Overview: Transitioning to Multiple Ore Feeds
Rasp Mine Overview: Transitioning to Multiple Ore Feeds 10.1Mt @ 9.9% ZnEq, 273g/t AgEq2 (48.5g/t Ag, 3.2% Pb & 5.7% Zn)1 For personal use only Western Mineralisation N CML7 Centenary Main Lode Perilya North Mine Perilya South Mine High-Grade “Line of Lode” Workings (Remnant mining opportunity) Pinn
Slide 9: High Grade Main Lode Now Online
High Grade Main Lode Now Online Clear upside potential to existing Mineral Resource Estimate (MRE) based on identified targets and historical operational knowledge For personal use only Mining underway, shallow ore body starting ~200m depth December 2025 quarter Main Lode drilling1 highlights: • 4.3
Slide 10: Rasp Operational Infrastructure
Rasp Operational Infrastructure Mining Processing & Surface Tailings For personal use only • Sub-level open stoping and up-hole stoping • Grinding, flotation, thickening and filtration • Current practice: • 100% owned operating mobile fleet • 750ktpa ore throughput capacity o Wet, thickened tailings
Slide 11: Pinnacles Mine
Pinnacles Mine One of the highest-grade and shallowest deposits in Broken Hill For personal use only Overview of Pinnacles Operation 11
Slide 12: Accelerating Pinnacles Growth
Accelerating Pinnacles Growth Fast-track resource growth and development, with a 25,000m expanded drilling program across high-priority targets For personal use only Successful Phase 1 Drilling Program • Phase 1 program (total ~8,500 m) completed with highly encouraging initial results • Over 6,500m
Slide 13: Pinnacles is Potentially the Most Significant Discovery in Broken Hill in 100 Years
Pinnacles is Potentially the Most Significant Discovery in Broken Hill in 100 Years For personal use only BHM’s Inaugural ASX Pinnacles Release (22 September 2025) Exceptional High Grade Shallow Mineralisation (Section A – A’)1, 2 8.9m @ 54.6% ZnEq, 1,537g/t AgEq (922g/t Ag, 12.3% Pb, 1.6% Zn, 3.7g/
Slide 14: Pinnacles Mine Restart Planning
Pinnacles Mine Restart Planning Rapidly progressing toward near-term restart, leveraging installed infrastructure, approved Mining Leases For personal use only and expedited study programs alongside 25,000m expanded drilling program across high-priority targets Pinnacles and Rasp are connected by ha
Slide 15: On Target for Open Pit Mining in June Quarter 2026
On Target for Open Pit Mining in June Quarter 2026 For personal use only BHM’s Operational Readiness Program highlights Mining services and ore haulage contracts executed, to support commencement of Pinnacles mining and ore movements. Surface works underway to upgrade pit access, relocate site offic
Slide 16: Investment Proposition
Investment Proposition For personal use only Solid Foundation: Rasp’s infrastructure and Western Mineralisation, providing a base for growth Near-Term Growth: Rasp’s Main Lode and Pinnacles’ Open Pit to increase metal production Silver Exposure: Silver-rich new ore sources significantly increasing A
Slide 17: Mineral Resource Estimates
Mineral Resource Estimates1,2 Rasp Pinnacles For personal use only Tonnes ZnEq AgEq Zn Pb Ag Tonnes ZnEq AgEq Zn Pb Ag Au Classification (kt) (%) (g/t) (%) (%) (g/t) Classification (kt) (%) (g/t) (%) (%) (g/t) (g/t) Main Lode Open Pit Measured 245 19.3 533 8.50 7.00 152 Measured 84 8.3 230 3.4 2.2 8
Slide 18: Metal Equivalents
Metal Equivalents Metal recoveries used in the zinc equivalent (ZnEq) and silver equivalent (AgEq) calculations for each element are based on the average metallurgical recoveries of Rasp achieved based on historical performance and applied to all ore types, including Pinnacles For personal use only
Slide 19: For personal use only
For personal use only Patrick Walta Shane Goodwin Executive Chairman Head of Corporate Affairs pwalta@brokenhillmines.com sgoodwin@brokenhillmines.com 19