Slide 1: Company Presentation
Company Presentation February 2026
Slide 2: Investment Highlights
INVESTMENT HIGHLIGHTS Advancing the UK’s largest copper project (16.1Mt at 1.9% CuEq) Eliminated over £4 million of debt, making the company essentially debt free* BASE METALS PEA 14ktpa CuEq over 12-yrs with pre-tax NPV of $120m (> $270m at spot) Permitting process well advanced and significant inf
Slide 3: Parys Mountain (100% Owned)
PARYS MOUNTAIN (100% OWNED) • Economic development scenarios have been demonstrated at Parys Mountain • The 2021 Preliminary Economic Assessment outlined a best case Pre-tax NPV10% of $120m, 26% IRR, $99m Parys capital * Mountain • Freehold ownership in the UK Holyhead Port • The mine hosts signific
Slide 4: PEA Development Case
PEA DEVELOPMENT CASE PEA released in January 2021 – Low capex, short time-line to production Morris Shaft STOPING PLAN IN RED & DECLINE IN • Base Case ramping up to 3,000tpd BLUE FROM 2021 PEA WHITE ROCK Short construction period, 12-year mine life 0.6m @ 0.5% 14.9m @ 2.6% $99m capex, 3.5-yr pay
Slide 5: Options to Extend Mineral Resources
OPTIONS TO EXTEND MINERAL RESOURCES • Open at depth and along strike – Mineralisation already identified along 1,600m of strike Morris Shaft Total contained metal 114kt 0.34Mt CuEq CuEq 200m 14.9/2.6 E A White Rock Extension 280mRL B Engine Zone Extension 168kt CuEq 16.8/0.8 400m C Linking Deep Engi
Slide 6: H1 2024 Drilling of Northern Copper Zone
H1 2024 DRILLING OF NORTHERN COPPER ZONE • Northern Copper Zone has demonstrated potential to host a significant copper resource View of the 4600mE section line looking west • Drilling is clearly validating the geological model with mineralised zones occurring where anticipated • NCZ002 intersected
Slide 7: Drill Results Confirm Geological Model and Highlight Potential Resource Upside
DRILL RESULTS CONFIRM GEOLOGICAL MODEL AND HIGHLIGHT POTENTIAL RESOURCE UPSIDE View of the 4800mE section line looking west • NCZ001 intersections include: • 63.0m @ 0.7% CuEq (NCZ): and, • 22.0m @ 3.7% CuEq (Garth Daniel) • Garth Daniel intersection includes: • 4.0m @ 4.9% CuEq (5.2% Cu, 5.0g/t Ag
Slide 8: Metallurgy
METALLURGY Pre-concentration and conventional flotation to produce metal concentrate • 2024 testwork confirms Parys Mountain ores can be upgraded 52% by DMS and 55% via XRT prior to flotation Zinc Lead Copper ZnEq Mass Rejection Metal Loss (%) (%) (%) (%) (%) (%) Bulk Sample 3.6 3.1 0.4 7.5 - - DMS
Slide 9: Metal Profile
METAL PROFILE Metal profile supports electrification and decarbonisation of the economy • At 3,000tpd, an average output of c.15ktpa CuEq, peaking at c.20kt CuEq NSR BY METAL (PEA PRICING) ANNUAL OUTPUT IN COPPER EQUIVALENTS 16000 7% 14000 Ag Au 12000 20% Pb Cu 40% 10000 Zn Pb/Ag 8000 Zn Au 6000 400
Slide 10: Current Permitting Status
CURRENT PERMITTING STATUS Permitting process has commenced – existing planning permissions in place • A permit was granted in 1988 to allow sinking of shaft and underground development • Subsequently, the mine portal and spiral decline were permitted in 1991 • Key aspects of permitting will involve
Slide 11: Respecting the Heritage
RESPECTING THE HERITAGE Remaining resources are underground and located outside of the historic mining site • All future mining will be underground • There are no plans to do any surface or open pit mining • Preservation of existing heritage areas, Sites of Special Scientific SSSI’s Interest (SSSI’s
Slide 12: Future Opportunities
FUTURE OPPORTUNITIES Limited modern work opens up significant opportunities for exploration upside • Production studies are the initial focus, but we are keen to explore the VMS system further E E • VMS deposits typically occur in clusters • Very limited modern exploration work has been conducted ov
Slide 13: Underexplored VMS System
UNDEREXPLORED VMS SYSTEM Sporadic exploration followed by infill drilling of White Rock and Engine Zone 80 70 Infill Exploration Number of holes drilled 60 50 40 30 20 10 0 • Northern Copper Zone first identified in 1961 drilling • White Rock and Engine Zone discovered 1980 – 1981 • Since 1961, a to
Slide 14: Potential for Parys Mountain to Grow
POTENTIAL FOR PARYS MOUNTAIN TO GROW Parys Mountain compared to Golden Grove (WA, Aus) and Rosebery (Tas, WA) Parys Mountain Golden Grove Rosebery ~16Mt ~48Mt ~50Mt U/G Discovered – 1962 Discovered – 1971 Discovered – 1893 Opened - 1990 Opened - 1936 ? ? ? ? • The underground resources were all disc
Slide 15: Historical Drill Hits
HISTORICAL DRILL HITS Northern Copper Zone and Southern Contact (Garth Daniel) unfinished business • These zones needs further drilling to confirm grades and continuity (all Inferred resource category) Selection of High Grade Intersections Selection of Broad Lower Grade Intersections Hole ID Depth W
Slide 16: Multiple Target Horizons
MULTIPLE TARGET HORIZONS Garth Daniel Zone Central Zone Northern Copper Zone High-grade polymetallic High-grade polymetallic Cu dominant stockwork, massive sulphides similar to massive sulphides (same veinlets hosting cp-py-qtz Engine Zone stratigraphic level as Engine (feeder to Central Zone) Zone)
Slide 17: Northern Copper Zone History
NORTHERN COPPER ZONE HISTORY M-series holes discovered the lode in 1962 • Internal resource estimate of 17Mt @ 0.71% Cu in 1968, with ‘potential’ scale implied at 60 – 200Mt Morris Shaft WHITE ROCK AMC22 H3 AMC14 M4 280mRL 600m AMC17 AMC15 H32 H33 AMC19 A15 H30 H35 A12 AMC16 NORTHERN AMC9 A3A H34 M1
Slide 18: Potential High-Grade Extension
POTENTIAL HIGH-GRADE EXTENSION Morris Shaft 4600E 1962 1968 - 1972 1973 - 1975 1981 - 1985 2004 - 2008 H3 2012 280mRL 600m 1.8m @ 11.7% 3.3m @ 9.0% IM6 A13 AMC9 2.0m @ 1.4% A12 2.0m @ 1.0% AMC9A A14 1.6m @ 2.5% 0.9m @ 12.1% A29 2.4m @ 5.8% 6.0m @ 3.9% NO 19.4m @ 3.9% 0.3m @ 3.7% NO 4.8m @ 5.4% DRILL
Slide 19: Creating a Brighter Future
CREATING A BRIGHTER FUTURE ENVIRONMENT Focus on emissions & use of renewable energy Tailings and water management Respect of local farming industry DIVERSITY COMMUNITY Ensure that no-one is excluded Licence to Bringing employment to local people Enable local suppliers No barriers Exp
Slide 20: Appendix 1: Resources & Reserves
APPENDIX 1 Resources & Reserves 2/18/2026 www.angleseymining.co.uk 20
Slide 21: Parys Mountain - Resources
PARYS MOUNTAIN - RESOURCES Engine Zone1 Northern Copper Zone2 Total Measured Indicated Measured Inferred NCZ– Garth Daniel – Deep Engine Zone (Jan-21) Mt % Zn % Pb % Cu g/t Ag g/t Au Mt % Zn % Pb % Cu g/t Ag g/t Au Mt % Zn % Pb % Cu g/t Ag g/t Au 0.45 2.38 1.27 0.52 53 0.48 9.38 0.38 0.24 1.27 5 0.1
Slide 22: Contact Information
CONTACT INFORMATION +44 7540 366000 rob.marsden@angleseymining.co.uk