Ecograf Ltd. · ASX:EGR
Ecograf — TGS 2026 Annual Conference
19 slides from Ecograf's conference presentation, Sep 15, 2026
Slide 1: TGS 2026 Annual Conference
15 September 2026 TGS 2026 Annual Conference A Geological Interpretation of The Epanko Graphite Project and its Impact, with other Modifying Factors, on Confidence of Industrial Mineral Ore Reserves Samir Khamoud Geologist Duma TanzGraphite ASX: EGR FSE: FMK
Slide 2: Disclaimer
Disclaimer Securities Disclaimer sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity whi ch they are undertaking to qualify as Competent Persons as defined in the 2012 Edition of the Australasian Code for the This document is for
Slide 3: Strategic Vertically Integrated Business
Strategic Vertically Integrated Business Upstream Epanko Mine Midstream Mechanical Shaping Facility Large-scale, development-ready graphite Value-addition processing in Tanzania through the micronising and spheronising of natural project in Tanzania, offering compelling graphite concentrate. This me
Slide 4: The Epanko Graphite Project
The Epanko Graphite Project ASX:EGR FSE: FMK September 2026 www.ecograf.com.au 4
Slide 5: Introduction
Introduction • Progressive geological interpretation Critical Minerals transformed Epanko from regional mapping to LITHIUM deposit-scale understanding NICKEL • Integration of mapping, drilling, geophysics, and MANGANESE Energy Storage & Batteries imagery refined the graphitic schist model GRAPHITE C
Slide 6: Project Overview
Project Overview Epanko Project Advantages for Lithium-ion Battery Market 200m 83,000t Mwanza Average thickness of deposit Per Metre Strike Arusha 0.77 : 1 94.7% SGR Planned Extension SGR Strip Ratio - Amount of Waste to Ore Process Recovery 96% - 98% 63% Morogoro Dar es Salaam Kidatu Hydropower Con
Slide 7: Geological Mapping Progression
Geological Mapping Progression 1962 2017 2026 Original TGS QDS 251 Focused on original ML Covers the entire SML 125,000-scale and deposit footprint and surrounding PLs Graphitic schist Biotite schist Biotite quartz gneiss Marble Quartz garnet gneiss Mica schist quartzite Granitic gneiss Quartzite AS
Slide 8: Geological Mapping Approach
Geological Mapping Approach • Pre-2016: QDS 251 mapping, trenching, and drilling created 2016 map. • 2016–2026: Detailed mapping, high- resolution geophysical interpretation, test pitting and expanded drilling produced updated 2026 map. • Integration of field mapping, existing drilling, geophysics,
Slide 9: Epanko – Graphite Geology
Epanko – Graphite Geology • Proterozoic Mozambique belt: Granulite-Eclogite Metamorphism of Sedimentary units • Graphite-quartz-feldspar schist host rock grading between 3 to 30 % TGC • High proportion of large flake • Structurally thickened Mahenge Fold limb hosts a 200 m graphite schist unit along
Slide 10: Epanko – Waste Rock Geology
Epanko – Waste Rock Geology • Key waste lithologies include schist, gneiss, quartzite, and marble. • Un-mineralised schists contain little to no graphite. • Quartz garnet gneiss is the dominant gneiss unit. • Late intrusives and veins crosscut main lithologies. ASX:EGR FSE: FMK September 2026 www.ec
Slide 11: Epanko – Mineral Resource & Ore Reserve
Epanko – Mineral Resource & Ore Reserve The Largest Development Ready Graphite Resource In Africa Mineral Resource 290.8 Mt at 7.2 %TGC for 21 Mt contained graphite1 Ore Reserve 16.7 Mt at 8.2 %TGC for 1.4 Mt contained graphite 57 % of the Ore Reserve is Proved2 1 ASX announcement dated 11 March 202
Slide 12: Not all Graphite is Created Equal
Graphite Occurrences Natural Graphite Synthetic Graphite Vein Amorphous Flake Synthetic Micro-crystalline Macro-crystalline Graphite, Man-made form of graphite using Lump, Sri Lanka. Graphite (no crystalline disseminated flake In calcined petroleum coke, tar, pitch Vein graphite structure) Proterozo
Slide 13: Importance of Proved
Importance of Proved Exploration Mineral Ore Results Resources Reserves Inferred Increasing level of Indicated Probable Increasing level of geological knowledge and knowledge and confidence in the confidence Measured Proved Modifying Factors Economic extraction demonstrated by a Technical Study or L
Slide 14: Modifying Factors Determine Value
Modifying Factors Determine Value Overarchingly, the pricing of natural flake graphite depends 1. Flake/mesh size on two key parameters of the mine produced concentrate: 2. Carbon content FLAKE/MESH SIZE POTENTIAL PREMIA (US$/TONNE) – CARBON CONTENT China FOB End User +15% +5% +10% Flake Mesh Micron
Slide 15: Importance of Proved – Peer Comparison
Importance of Proved – Peer Comparison Proportion of Proved Material in Global Graphite Ore Reserves • Analysed 18 major graphite deposits • Four deposits without Ore Reserves • Epanko is the only deposit with >50 % Proved • Five deposits with 0 % Proved ASX:EGR FSE: FMK September 2026 www.ecograf.c
Slide 16: The Risks
The Risks Graphite Ore Reserve - % Proved with Project Status • Recent graphite mine closures and ongoing Production Pre-development Feasibility project underperformance 90% • Problems derived from insufficient 80% understanding of Modifying Factors 70% % Proved Ore Reserve • Variation from the expe
Slide 17: Conclusion
Conclusion • A favorable geological environment created by structural fold thickening provides a continuous 200m-wide graphitic schist unit across 5.5km, driving superior project economics • Growing importance of Modifying Factors increases importance of Proved Ore Reserves • A minimum portion of In
Slide 18: Acknowledgments
Acknowledgments Samir Khamoud David Drabble David Williams Andrew Spinks Graduate Geologist, Chief Geologist, Principle Resource Managing Director, Duma TanzGraphite EcoGraf Consultant, ERM EcoGraf Thank you to the TGS for hosting this conference and for the opportunity to present ASX:EGR FSE: FMK S
Slide 19: The future is electric with EcoGraf HFfree purification and Tanzanian graphite
The future is electric with EcoGraf HFfree® purification and Tanzanian graphite 18 Richardson Street, West Perth WA 6005 [email protected] www.ecograf.com.au ASX: EGR FSE: FMK