Tertiary Minerals Plc · LSE:TYM

Tertiary Minerals — Investor Presentation (April 2025)

50 slides from Tertiary Minerals's investor presentation, April 2025

  1. Slide 1: Company Presentation

    www.tertiaryminerals.com info@tertiaryminerals.com AIM: TYM Company Presentation Drilling on the Konkola West Project by KoBold Metals April 2025

  2. Slide 2: Disclaimer

    OVERVIEW PROJECTS SUMMARY APPENDICES DISCLAIMER The content of information contained in these slides and the accompanying verbal presentation (together, the “Presentation”) has not been approved by an authorised person within the meaning of the Financial Services and Markets Act 2000 (“FSMA”). Relia

  3. Slide 3: Key Investment Highlights

    OVERVIEW PROJECTS SUMMARY APPENDICES KEY INVESTMENT HIGHLIGHTS Strong Technical Team Portfolio Diversification 100+ years technical & corporate experience Key projects in stable jurisdictions: Zambia, US, within the junior exploration sector. Sweden. Exposure to multiple metals. Right Exploration Ad

  4. Slide 4: Board of Directors

    OVERVIEW PROJECTS SUMMARY APPENDICES BOARD OF DIRECTORS BOARD OF DIRECTORS PATRICK CHEETHAM DR RICHARD BELCHER Executive Chairman Managing Director • Geologist and founder of the Company. • Geologist with over 20 years’ experience in Africa. • Over 40 years’ experience in mineral exploration. • Mult

  5. Slide 5: Project Overview: Zambian Copperbelt

    OVERVIEW PROJECTS SUMMARY APPENDICES PROJECT OVERVIEW ZAMBIAN COPPERBELT • 5 projects held directly or through local JV partnership. • Targeting: Cu, Co, Au, Ag (Sedimentary copper & IOCG). • Drill ready or early drilling stage. • Strategic Alliance: Technical collaboration with First Quantum Minera

  6. Slide 6: Project Overview: Nevada, US

    OVERVIEW PROJECTS SUMMARY APPENDICES PROJECT OVERVIEW NEVADA, US • 4 projects held directly. • Targeting: Cu, Au, Ag (epithermal, skarn & porphyry). 2 projects within Walker Lane belt. • Drill ready or early drilling stage. • Prolific mining jurisdiction: world-class gold district with notable opera

  7. Slide 7: Project Overview: Sweden

    OVERVIEW PROJECTS SUMMARY APPENDICES PROJECT OVERVIEW SWEDEN • 1 project: Storuman Fluorspar Project. • Advanced stage: MRE & Scoping Study completed. • Mining Permit currently in appeal. • Positive EU legislation, potential for improved local mining support. 7

  8. Slide 8: Corporate Strategy

    OVERVIEW PROJECTS SUMMARY APPENDICES CORPORATE STRATEGY PROJECT FOCUS 2025 to 2026 Main Priority Zambia (Cu, Co, Zn, Ag) Mushima North- further drilling of A1 Project (most ‘advanced’, near surface Cu-Zn-Ag target). Joint Ventures (Konkola West, Mukai)- partners manage exploration and fund all explo

  9. Slide 9: Mushima North Project

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH PROJECT ZAMBIAN IOCG REGION COMMODITY: Copper, Zinc, Silver OWNERSHIP: 90% LICENCE : 27068-HQ-LEL, ~350km2 STAGE: Limited (shallow) drilling completed GEOLOGY: Metasediments (sandstones, shales) intruded by the Musondweji granite (related to the Pan

  10. Slide 10: Mupala Project

    OVERVIEW PROJECTS SUMMARY APPENDICES MUPALA PROJECT ZAMBIAN COPPERBELT COMMODITY: Copper OWNERSHIP: 100% LICENCE SIZE: 32139-HQ-LEL, 41km2 STAGE: Early-stage exploration GEOLOGY: Lower & Upper Roan on margin of large domal structure. Cross-cutting NW-SE faults. KEY FEATURES: • Right geology: targeti

  11. Slide 11: Jacks Project

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT ZAMBIAN COPPER BELT COMMODITY: Copper OWNERSHIP: 90% LICENCE SIZE: 27069-HQ-LEL, 70.6km2 STAGE: Initial drilling GEOLOGY: Lower and Upper Roan within large synformal structure. Possible fault bounded along southern margin. KEY FEATURES: • Shallow, n

  12. Slide 12: Mukai Project

    OVERVIEW PROJECTS SUMMARY APPENDICES MUKAI PROJECT ZAMBIAN COPPERBELT COMMODITY: Copper, Zinc, Silver OWNERSHIP: 90% LICENCE SIZE: 27066-HQ-LEL, 27.7km2 STAGE: Initial drilling (on-going) GEOLOGY: Northwestern end of the Tirosa basin, targeting Lower Roan near surface. KEY FEATURES: • JV with FQM •

  13. Slide 13: Konkola West Project

    OVERVIEW PROJECTS SUMMARY APPENDICES KONKOLA WEST PROJECT ZAMBIAN COPPERBELT COMMODITY: Copper OWNERSHIP: 96% LICENCE SIZE: 27067-HQ-LEL, 35.7km2 STAGE: Drilling (on-going) GEOLOGY: Potentially part of the Konkola mineralised complex & southern part of the Kirla Bombwe anticline. KEY FEATURES: • JV

  14. Slide 14: Brunton Pass Project

    OVERVIEW PROJECTS SUMMARY APPENDICES BRUNTON PASS PROJECT COPPER, NEVADA COMMODITY: Copper OWNERSHIP: 100% LICENCE SIZE: 2.0km2 STAGE: Initial scout drilling completed GEOLOGY: Triassic-aged carbonate & clastic sediments overlying/intruded by granitoid & exposed within a ‘window’ through the overlyi

  15. Slide 15: Storuman Project

    OVERVIEW PROJECTS SUMMARY APPENDICES STORUMAN PROJECT FLUORSPAR, SWEDEN COMMODITY: Fluorspar OWNERSHIP: 100% LICENCE SIZE: 1.8km2 STAGE: Scoping Study JORC MRE: 25.0 Mt @ 10.26% CaF2. 2.7 Mt @ 9.87% CaF2. • Good infrastructure: Good road network, rail line <25km away. • Positive economics: NPV(8%) o

  16. Slide 16: Project Timeline: Multiple Upside Milestones

    OVERVIEW PROJECTS SUMMARY APPENDICES PROJECT TIMELINE MULTIPLE UPSIDE MILESTONES PROJECT 2025 2026 Drilling Assay Results Drilling? Assay Results? MUSHIMA NORTH JV/Project Update Drilling? Assay Results? JACKS Project Update MUKAI ZAMBIA Drilling Results JV Establishment/Project Continuation? Future

  17. Slide 17: Key Takeaways

    OVERVIEW PROJECTS SUMMARY APPENDICES KEY TAKEAWAYS WHY INVEST? STRONG PROJECT PORTFOLIO: Attractive portfolio of projects covering key commodities in the right jurisdictions. EXPERIENCED TECHNICAL TEAM: Significant technical & corporate experience within the junior exploration sector. Proven ability

  18. Slide 18: Tertiary Minerals plc contact details

    Tertiary Minerals plc Queens Avenue Macclesfield Cheshire SK10 2BB United Kingdom Tel: +44 (0)1625 838 679 info@tertiaryminerals.com www.tertiaryminerals.com

  19. Slide 19: Corporate Snapshot

    OVERVIEW PROJECTS SUMMARY APPENDICES CORPORATE SNAPSHOT LISTING AIM: TYM ISSUED SHARES 3,713,009,573 Tertiary Minerals WARRANTS/OPTIONS 124,887,500 plc FULLY DILUTED 3,837,897,073 AS OF 01 APRIL 2025: SHARE PRICE GB£ 0.04 MARKET GB£ 1.5M CAPITALISATION 100% 100% 96% Tertiary Minerals US Tertiary Min

  20. Slide 20: Why Zambia?

    OVERVIEW PROJECTS SUMMARY APPENDICES WHY ZAMBIA? ZAMBIA IS A MINING POWERHOUSE WITH WORLD-CLASS COPPEREBELT • Major mining jurisdiction: >100 years of mining, forms the cornerstone to the Zambian economy. • Increase Production: from 0.7 Mt (2023) to >3 Mt by 2032. • Attracting Investment: improvemen

  21. Slide 21: The Copper Problem

    OVERVIEW PROJECTS SUMMARY APPENDICES THE COPPER PROBLEM INSUFFICIENT SUPPLY TO MEET PROJECTED DEMAND, EVEN WITH PROJECTED NEW MINE DEVELOPMENTS Wood Mackenzie’s Accelerated Energy Transition 2 (AET-2) demand scenario is based on a combination of global policy drivers and technical innovation conside

  22. Slide 22: Copper - The No.1 Clean Energy Transition Metal

    OVERVIEW PROJECTS SUMMARY APPENDICES COPPER - THE NO.1 CLEAN ENERGY TRANSITION METAL 22

  23. Slide 23: Mushima North Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH SUMMARY WORK PROGRAMMES DETAILS Geological Mapping Historic reconnaissance mapping. Regional survey interpretation. Detailed mapping Mukundushi area (AML) Geochemistry Musondweji soil Geochem survey & detailed MMI Geochem over Mukundushi (ZamAnglo P

  24. Slide 24: Mushima North Historic Data

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH HISTORIC DATA Various exploration campaigns in the surrounding area included parts of Mushima North: • Focused around the small, high-grade Kalengwa copper-silver mine (4 million tons @ 5.2% Cu, 40 g/t Ag produced), located ~20 km to the west of the

  25. Slide 25: Mushima North Historic Data

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH HISTORIC DATA 25

  26. Slide 26: Mushima North Target Overview

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH TARGET OVERVIEW TARGETS: • A1: Geology/Geochemistry: 3.1 by 1.6km Cu-, 1.7 by 0.5km Zn-, 1.3 by 0.3km Ag-in-soil anomaly. Near granite margin, extensive iron-enrich units (ferruginous conglomerates and ironstone). • A2: Geology/Geochemistry: Small,

  27. Slide 27: Mushima North Targets A1 & A2

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH TARGETS A1 & A2 • 249 soil samples were initially collected on a 200m by 200m spaced grid at the A1 and A2 targets. • A further 310 samples were taken as an infill of the A1 grid at 100m by 100m spacing and at 50m spacing along three east-west lines

  28. Slide 28: Mushima North Target A1: Drilling

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH TARGET A1: DRILLING • 3 drill lines to target key parts of the Cu-in-soil anomaly. Drill results include (pXRF): o Hole 24TMN024: 33m grading 0.21% copper from 22m ▪ inc. 6m downhole grading 0.58% copper from 47m ▪ inc. 1m downhole grading 1.04% cop

  29. Slide 29: Mushima North Target A1: Drilling

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH TARGET A1: DRILLING • Drill results include (down hole, not true widths): • 57m at 25 g/t Ag, 0.20% Cu, 0.15% Zn from 14m downhole (24TMNAC-004). ▪ Including: 26m at 36 g/t Ag, 0.20% Cu, 0.20% Zn from 45m downhole. • 65m at 23 g/t Ag, 0.14% Cu, 0.27

  30. Slide 30: Mushima North Target C1

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH TARGET C1 • 324 soil samples collected on 200m by 200m grid at Target C1. • Target C1: 4km by 1.25km Cu-in-soil anomaly, with peak value of 211ppm Cu. • Corelation of Cu with As, spatially associated with historic drill hole RKN80. • Area was consid

  31. Slide 31: Mushima North Target C1: Drilling

    OVERVIEW PROJECTS SUMMARY APPENDICES MUSHIMA NORTH TARGET C1: DRILLING • 7 AC holes targeting the Cu-in-soil anomaly (west end) & west of historic drill hole. Total of 212m. Maximum hole depth is only 50m. • Drill results include (down hole, not true widths): • 3m @ 0.11% Cu from 29m (24TMN-016) • 3

  32. Slide 32: Jacks Project

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT ZAMBIAN COPPER BELT COMMODITY: Copper OWNERSHIP: 96% LICENCE SIZE: 27069-HQ-LEL, XX km2 STAGE: Initial Drilling GEOLOGY: “Outcropping” of Lower Roan within large synformal structure. Possible fault bounded along southern margin. KEY FEATURES: • Shal

  33. Slide 33: Jacks Project Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT SUMMARY WORK PROGRAMMES DETAILS Geological Mapping Historic Regional Mapping Geochemistry Regional soil geochemistry, 500 by 500m off-set grid, ME analysis (FQM). Eastern part of the licence: 1,000m by 100m grid, Cu only (Cyprus/AMAX) 1,805 samples

  34. Slide 34: Jacks Project Historic Data

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT HISOTRIC DATA BoreHole ID From (m) To (m) Interval (m) Cu % KJ11 65 70 5 0.7 • Historic soil data (FQM) available over the project. KJ12 67 76 9 0.9 • Indicates elevated Cu & Cu/Sc ratio. KJ13 18 31 13 0.7 KJ13 86 96 10 0.4 • Re-interpretation impro

  35. Slide 35: Jacks Project Exploration So Far

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT EXPLORATION SO FAR • 1805 sample programme targeting historic anomalies & margin of synform. • Multiple copper-in-soil anomalies within a 20km strike length of prospective Lower Roan stratigraphy. • Cu/Sc ratio & Cu anomaly similar magnitudes to oth

  36. Slide 36: Jacks Project Initial Drilling

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT INIITAL DRILLING Drill holes prefixed: KJD: Cyprus Amax (1990s) 22KJDD: Tertiary Minerals plc (2022) • Aim of the initial drilling was to confirm historic drill results (drilling by Cyprus Amax- holes with prefix “KJ”). • Highlights include: • 13.5m

  37. Slide 37: Jacks Project Initial Drilling

    OVERVIEW PROJECTS SUMMARY APPENDICES JACKS PROJECT INIITAL DRILLING • Initial (limited) modelling: • E-plunging syncline, 2 horizons in ‘nose’, ‘thicker’ northern limb? • Limited drilling so far: • Northern and southern limbs not tested. • Continuity of limbs into fold hinge. 37

  38. Slide 38: Mukai Project Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES MUKAI PROJECT SUMMARY WORK PROGRAMMES DETAILS Geological Mapping Regional Historic Map. Local interpreted map for Trident project area & Tirosa basin Geochemistry Regional soil sampling (FQM) around project area. Regional sampling undertaken by Sunmine (limited i

  39. Slide 39: Mukai Project Joint Venture Agreement with FQM

    OVERVIEW PROJECTS SUMMARY APPENDICES MUKAI PROJECT JOINT VENTURE AGREEMENT WITH FQM In August 2024, Copernicus Minerals Limited (“Copernicus”) announced a binding letter of agreement (“BLA”) with First Quantum Minerals Limited (“First Quantum”) on the Mukai Copper Project in Zambia. Copernicus is 90

  40. Slide 40: Mukai Project Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES MUKAI PROJECT SUMMARY • Mukai Project is located centrally between: • FQM’sTrident Project (Sentinel Copper Mine & Enterprise Nickel Mine). • Arc Minerals/Anglo American JV, where Anglo American has the right to earn 70% for US$88.5M. • Contains same prospective

  41. Slide 41: Konkola West Project Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES KONKOLA WEST PROJECT SUMMARY WORK PROGRAMMES DETAILS Geological Mapping Regional Geological Map; 1:250,000 interpretative maps (SRK Consulting). Interpretative academic research Geochemistry None Geophysics Historic regional airborne surveys. Seismic lines over L

  42. Slide 42: Konkola West Project Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES KONKOLA WEST PROJECT SUMMARY Konkola-Lubambe-Musoshi ore deposits Mingomba Deposit: “Expected to be one of the top Pre-mining endowment: >775million tons @ three high grade copper deposits in the world” 2-3% copper KoBold Metals Vedanta has committed US$1 billion

  43. Slide 43: Konkola West Joint Venture Agreement with KoBold Metals

    OVERVIEW PROJECTS SUMMARY APPENDICES KONKOLA WEST PROJECT JOINT VENTURE AGREEMENT WITH KOBOLD METALS Tertiary Minerals plc and local partner Mwashia Resources Ltd have concluded an earn-in agreement with US billionaire backed KoBold Metals at Konkola West. KoBold Metals: Earn-In Agreement: • A US-ba

  44. Slide 44: Mupala Project Work Programmes

    OVERVIEW PROJECTS SUMMARY APPENDICES MUPALA PROJECT WORK PROGRAMMES DETAILS Geological Mapping Regional Historic Map Geochemistry Historic hand auger (RST) 684 samples, 300 by 300m off-set grid covering entire licence. Geophysics Regional MAG data (FQM) Drilling None Note: Programmes in italics unde

  45. Slide 45: Mupala Exploration So Far

    OVERVIEW PROJECTS SUMMARY APPENDICES MUPALA EXPLORATION SO FAR • Licence wide soils on a 300 by 300m grid. • Cu-in-soil anomaly 1.8km by 0.6km (up to 422 ppm Cu). Conforms to historic and auger sampling. • Structural control: Anomaly spatially associated with NW-SE cross-cutting fault from regional

  46. Slide 46: Why Nevada?

    OVERVIEW PROJECTS SUMMARY APPENDICES WHY NEVADA? • Ranked highly in the world as a mining jurisdiction by the Frazer Institute. • Major gold and silver producer. • Significant copper and industrial mineral production. • Majority of land is Federally owned and open to claim staking. • Well defined an

  47. Slide 47: Brunton Pass Project Summary

    OVERVIEW PROJECTS SUMMARY APPENDICES BRUNTON PASS PROJECT SUMMARY WORK PROGRAMMES DETAILS Geological Mapping Regional maps and interpretation Geochemistry 47 rock chip samples (2020-2022) 485 soil samples (100m off-set grid, with 50m by 100m infill) Geophysics IP survey (4 profiles 100m spaced, for

  48. Slide 48: Brunton Pass Project

    OVERVIEW PROJECTS SUMMARY APPENDICES BRUNTON PASS PROJECT Cu, NEVADA • An Induced Polarisation (IP)/Resistivity survey was carried out in spring 2024. • Copper mineralisation spread over a 1km by • Distinctive IP anomaly identified on all 0.6km target area. sections (over 700m strike ) below and • S

  49. Slide 49: Storuman Project: Fluorspar, Sweden

    OVERVIEW PROJECTS SUMMARY APPENDICES STORUMAN PROJECT FLUORSPAR, SWEDEN • Fluorspar is a critical mineral in US, EU and Australia, an industrial source of fluorine chemicals: • increasing use in electric vehicle batteries in cathodes, cells and electrolytes. • used to process silicon in solar cells.

  50. Slide 50: Storuman Project: Fluorspar, Sweden

    OVERVIEW PROJECTS SUMMARY APPENDICES STORUMAN PROJECT FLUORSPAR, SWEDEN 50

Tertiary Minerals — Investor Presentation (April 2025) on 6ix