Octava Minerals Ltd. · ASX:OCT

Octava Minerals — Shareholder Meeting (November 2025)

14 slides from Octava Minerals's shareholder meeting presentation, Nov 26, 2025

  1. Slide 1: Critical Minerals AGM Presentation & Investor Update

    CRITICAL MINERALS For personal use only WESTERN AUSTRALIA & TASMANIA Critical minerals AGM Presentation & Investor update November 2025 ASX:OCT | octavaminerals.com Critical Minerals Projects – November 2025 Octava Minerals Limited | ASX: OCT 1

  2. Slide 2: Important Notice and Disclaimer

    IMPORTANT NOTICE AND DISCLAIMER The information contained in this document (“Document”) has been prepared by Octava Minerals Limited (referred to as “Octava” or “the Company”). The purpose of this Document is to provide background information to assist readers in obtaining a general understanding of

  3. Slide 3: Executive Summary Highlights

    EXECUTIVE SUMMARY HIGHLIGHTS Federation Copper-Zinc-Silver Project – Tasmania (121km2) For personal use only  Sampling of exploration adit at Sweeney’s prospect by Renison in 1977 recorded 47m @ 0.96% Zinc, 0.64% Tin & 7g/t Silver1.  Recent rock chips returned high grades including 27.5% Zn, 0.58%

  4. Slide 4: Projects with Key Critical & Strategic Minerals

    PROJECTS WITH KEY CRITICAL & STRATEGIC MINERALS For personal use only FEDERATION PROJECT 29 30 47 50 77 Cu Zn Ag Sn In Copper Zinc Silver Tin Indium BYRO CRITICAL MINERALS PROJECT 3 23 Light Heavy Li V REE’s REE’s Lithium Vanadium Driving Strong  Energy Transition Future Demand  Electric Vehicles

  5. Slide 5: Federation Copper Zinc Silver Tin Project Location

    FEDERATION COPPER ZINC SILVER TIN PROJECT PROJECT LOCATION For personal use only  Federation is a high-grade polymetallic exploration target in a world class discovery region  The project area is located 12km west of Zeehan and comprises 2 granted tenements EL16/2023 (Sweeneys), EL1/2023 (Federati

  6. Slide 6: Federation Proven Geological Setting

    FEDERATION PROVEN GEOLOGICAL SETTING For personal use only  The Federation project is located on the margin of the Heemskirk Granite, a multiphase intrusion containing various phases of mineralisation which have intruded a sequence of Proterozoic rocks.  Sweeney’s Prospect: Underexplored. Previous

  7. Slide 7: Federation Mineralisation Targeting

    FEDERATION MINERALISATION TARGETING For personal use only  Potential for minerals rich hydrothermal lenses derived through major structural conduits.  Mineralisation at Sweeney’s may lie between two E-W faults that cause dislocation to the north and south. Aligns with regional success (Rosebery, H

  8. Slide 8: Byro Critical Minerals Project Location, Access & Tenure

    BYRO CRITICAL MINERALS PROJECT LOCATION, ACCESS & TENURE For personal use only • Located on the Byro Plains of the Gascoyne Region, Western Australia.1 • 220km SE of Carnarvon and 650 km N of Perth • Expansive tenure, covering large portion of Byro Sub-basin. Consists of two granted Exploration Lice

  9. Slide 9: Byro Large Scale Opportunity

    BYRO LARGE SCALE OPPORTUNITY For personal use only • The Byro critical minerals project comprises Permian black shales and siltstones located within the Byro Sub-basin of the Carnarvon Basin which is approximately 100km by 150km in size and up to 3km in depth. • Previous Geological Survey of WA soil

  10. Slide 10: Excellent Initial Bioleaching Testwork Results

    EXCELLENT INITIAL BIOLEACHING TESTWORK RESULTS • Initial bioleaching testwork on the Byro material was carried out by two independent bioleaching experts, BiotaTec and the CSIRO in August 2025. For personal use only • Excellent critical minerals recovery rates were achieved including: • 68 – 75% for

  11. Slide 11: Sustainably Produced Critical Minerals

    SUSTAINABLY PRODUCED CRITICAL MINERALS • Biomining / Bioleaching is the technique of extracting metals from ores and other solid materials typically using micro-organisms (i.e. bacteria, For personal use only fungi or plants) • Bioleaching has distinct sustainability and operational advantages over

  12. Slide 12: Corporate Snapshot

    CORPORATE SNAPSHOT Mr Clayton Dodd - Non-Executive Chairman Shares on Issue and Market Capitalisation A Chartered Accountant with more than 40 years’ experience in finance and the resources sector in Australia, South Africa, South America, the UK Shares on Issue (ASX:OCT) 111,009,307 and North Ameri

  13. Slide 13: Key Highlights

    KEY HIGHLIGHTS For personal use only Highly prospective critical Projects located in premier minerals exploration projects discovery regions Byro: potential for long term Federation: High-grade Cu- supply of sustainable, low-cost Zn-Ag-Sn-In in drilling - no critical minerals exploration since 1970’

  14. Slide 14: Competent Person Statement and Forward Looking Statements

    For personal use only This Presentation has been authorised for release by the Board of Octava Minerals Limited. Competent Person Statement Octava confirms that where exploration and metallurgical results are noted in this presentation, it is not aware of any new information or data that materially

Octava Minerals — Shareholder Meeting (November 2025) on 6ix