Coast Copper Corp · TSXV:COCO
Coast Copper — K.E.G Conference 2026
24 slides from Coast Copper's conference presentation, April 2026
Slide 1: Skarns, IOCG and Porphyries of Northern Vancouver Island
Skarns, IOCG and Porphyries of Northern Vancouver Island Coast’s Empire and Copper Kettle Projects K.E.G Conference April 2026
Slide 2: Disclaimer
Disclaimer TSX-V: COCO Forward Looking Statement Certain information regarding the Company contained herein may constitute forward-looking statements within the meaning of applicable securities laws. Forward- looking statements may include estimates, plans, expectations, opinions, forecasts, project
Slide 3: Summary of Key Projects with 4-Pronged Targeted Strategy
Summary of Key Projects with 4-Pronged Targeted Strategy TSX-V: COCO 1 2 3 Copper Kettle Empire Mine Virginia & Emerald Cu-Mo-Au, High Grade Cu-Au, skarns Silver Mines porphyry bulk tonnage potential possibly IOCG, High Grade Ag bulk tonnage potential, brownfield • Strategic location within Island C
Slide 4: Other Projects – Ace Cards
4. Other Projects – “ Ace Cards” TSX-V: COCO Leveraging Hundred’s of Years of B.C Exploration Experience Picking up Strategic Land Positions for Pennies on the Dollar Coast has assembled an enviable portfolio of 18 other projects throughout B.C mainly by claim staking some of these include : 1. Tood
Slide 5: Key Projects - Northern Vancouver Island – Empire & Copper Kettle
Key Projects - Northern Vancouver Island – Empire & Copper Kettle TSX-V: COCO Re-Discovery and Expansion of the Benson Mine and Empire-Merry Widow Open Pits and the NW Porphyry System at Copper Kettle Empire Mine • 10 km wide x 29 km long with 30 minfile occurrences including 3 past producing open p
Slide 6: What happens when we wrongly assume that a prior deposit classification is correct?
What happens when we wrongly assume that a prior deposit classification TSX-V: COCO is correct? Empire – NOT A “ SKARN” 1. Why do some skarns have cobalt, copper, gold, telluride's, bismuth etc. and others don’t? 2. Why is there little to no mineralization at Empire in the limestones and instead in
Slide 7: What happens when we assume that mineralization is only related to the Middle Jurassic
What happens when we assume that mineralization is only related to the Middle TSX-V: COCO Jurassic porphyries and that island arcs and other terranes simply accreted to the western edge of North America? Could there be at least three stages/ages of mineralization at Empire? Copper Kettle 1. Early (M
Slide 8: So now that we have some doubts about deposit classifications, ages of mineralization and
So now that we have some doubts about deposit classifications, ages of mineralization TSX-V: COCO and even plate tectonics on Northern Vancouver Island let's look at the data! • The Empire Project historically mined about 3 mt of magnetite (iron oxide) at Merry Widow5 and about 4 mt of approximately
Slide 9: IOCG Deposits
IOCG Deposits TSX-V: COCO More recent work by Skirrow (2022, 2026) on IOCG Deposits notes the enrichment of Co, Ni, Bi, Se, Te compared to porphyries and skarns, importance of fluid mixing and along with work by Bains (2024, 2026). These show remarkable similarities to what we see at Empire 7 Keysto
Slide 10: Empire Mine - Reminder of Significant Geological Setting
Empire Mine - Reminder of Significant Geological Setting TSX-V: COCO The Empire Mine Property covers: • 30 mineral occurrences > 20 km trend! • 3 past producing open pit and 2 underground past producing mines (magnetite, Cu, Au, Ag), • Merry Widow Mine: Inferred Mineral Resource Estimate of 81,322 o
Slide 11: Empire - let’s look at the entire (> 1 km) section
Empire - let’s look at the entire (> 1 km) section TSX-V: COCO In the past two separate mining companies one focused on open pit magnetite and the other on underground copper Merry Widow Pit (Empire Mines) 1956-1968 mined 3 mt of magnetite and avoided sulphides, sent to the waste dump, later work co
Slide 12: Empire - We have Significant Crustal and Cross Structures!
Empire - We have Significant Crustal and Cross Structures! TSX-V: COCO Empire- Yes, the Merry Widow Pluton is adjacent to the west but its relatively “fresh” there’s no endoskarn and in the Merry Widow pit alteration drops off as approach the pluton, better correlations to the younger Keystone dykes
Slide 13: Empire - Re-activation of old structures plugged by dykes brings in critical minerals
Empire - Re-activation of old structures plugged by dykes brings in critical minerals TSX-V: COCO Keystone mafic dyke in the Kingfisher adit below Merry Widow Pit, near mapped cobalt, tellurium and arsenopyrite bearing north trending structures, re-activations of dykes mapping out structures, dykes
Slide 14: Empire - High Angled Structures, Dykes and Traps
Empire - High Angled Structures, Dykes and Traps TSX-V: COCO Our December 2023 CSAMT survey shows that known mineralization and underground workings at the past-producing Benson Lake Mine are associated with a resistivity low exhibited by two CSAMT lines over a 300 m x 500 m area . Based on the CSAM
Slide 15: Empire Conclusions - More Compatible with an IOCG Model
Empire Conclusions - More Compatible with an IOCG Model TSX-V: COCO Iron Oxide and Copper and Gold Mineralization at Empire plus accessory cobalt, bismuth, tellurium and the association with m afic dykes and structures is more analogous to an Arc Hosted IOCG Setting. Recent papers and presentations
Slide 16: Copper Kettle - Island Copper Cluster Adjacent to Island Copper and Northisle
Copper Kettle - Island Copper Cluster Adjacent to Island Copper and Northisle TSX-V: COCO • The NW Zone on the Copper Kettle Property is part of the Island Copper cluster of mineral deposits as noted by BHP geologists, NOT JUST A SKARN ! • Significant mineralization over a large area in historical d
Slide 17: BHP’s Island Copper Mine (1970-1995)
BHP’s Island Copper Mine (1970-1995) TSX-V: COCO Adjacent to the Copper Kettle property, the Island Copper Mine, was Canada's third largest copper mine at the time. Between 1 970 to 1995, Copper, Gold, Silver, Molybdenum and a by-product Rhenium were mined, using conventional open pit truck and shov
Slide 18: Copper Kettle - Northwest Zone Geology
Copper Kettle - Northwest Zone Geology TSX-V: COCO Geology of the Northwest Zone (CIM Special Volume 46) The Northwest Zone is a large, mineralized porphyry system. In contrast to other centres in the ICC, this centre is mainly wi thin Vancouver Group rocks, Branching, west-northwest striking, north
Slide 19: Copper Kettle - Northwest Zone Geology (CIM Special Volume 46)
Copper Kettle - Northwest Zone Geology (CIM Special Volume 46) TSX-V: COCO Copper and Molybdenum Mineralization The Northwest Zone carries anomalous amounts of copper, molybdenum, zinc and silver, but no gold. ( We discovered a new skarn showing which returned 0.66 g/t Au, 55 g/t Ag, 0.46% Cu and 5.
Slide 20: Copper Kettle Historical Drilling NW Zone Section 293 N (with 301 N)
Copper Kettle Historical Drilling NW Zone Section 293 N (with 301 N) TSX-V: COCO Final BHP Report 1989 More drilling recommended but never completed ! 1. Strong skarn & porphyry system 2. High moly grades 3. QFP Dykes 4. Thick intercepts of “ low grades” 5. Porphyry style in drillholes outside magne
Slide 21: Copper Kettle – Coast Copper 2025 AMT Survey and Fieldwork
Copper Kettle – Coast Copper 2025 AMT Survey and Fieldwork TSX-V: COCO 2025 Coast Copper Surface Field Work Expands Target Area: Collected rock grab samples showing up to 2.21%, 2.09%, and 1.86% Cu across a 5 km west-northwest stretch, Discovered a new polymetallic skarn target, with assays reaching
Slide 22: Empire and Copper Kettle Properties Conclusions
Empire and Copper Kettle Properties Conclusions TSX-V: COCO • Good Place to Work/Large Past and Present Resources: Northern Vancouver Island was and is a resource district where you can work year-round on road accessible properties staying in resource friendly communities to work on good brownfield
Slide 23: Investment Highlights
• Experienced Board of Directors and Management with large share positions , demonstrated financial prudence and low corporate burn rate and selling three non- core projects in the past for > $ 5 m in cash and shares. Investment Highlights • Year-round, road accessible and cost-effective exploration
Slide 24: Footnotes
Footnotes TSX-V: COCO 1. Cominco Resources, Drill Section Maps “Plan of Cominco’s Benson Lake Operations on Empire Claims Showing Ore Reserves & Proposed Exploration Program”, 1970, Private Files. While Coast Copper notes that Cominco’s historical results are not NI 43-101 compliant and have not bee