Slide 1: Corporate Presentation
TSX-V: COCO Corporate Presentation VALUE CREATION THROUGH COPPER-GOLD-SILVER DISCOVERY & DEALS June 2026
Slide 2: Disclaimer Footnotes
TSX-V: COCO Disclaimer Footnotes 1. Cominco Resources, Drill Section Maps “Plan of Cominco’s Benson Lake Operations on Empire Claims Showing Ore Reserves & Proposed Exploration Program”, Forward Looking Statement 1970, Private Files. While Coast Copper notes that Cominco’s historical results are not
Slide 3: Corporate Drivers
TSX-V: COCO Corporate Drivers Team • Collective 175 years of experience in prospecting, discovery and dealmaking Capital Structure • Tight share structure, ~ 60% held by Directors, Officers and Strategic Shareholders, with no issuances since May 2024 Projects • 3 Flagship Projects: Copper Kettle (be
Slide 4: Company Snapshot
TSX-V: COCO Company Snapshot Directors and Management Ownership Insiders Retail 41% • Adam Travis, CEO & Director 35% Share Structure (June 16, 2026) • Dr. Fletcher Morgan, Chair • Dale Wallster, Director • Dan Berkshire, Director TSX Venture Trading Symbol COCO • Tim Thiessen, CFO & Corporate Secre
Slide 5: Relative Value
TSX-V: COCO Coast’s Capital Allocation Strategy Leverage the Lassonde Curve: Minimize Dilution x Discovery Reinvestment = Maximize Share Performance 100 Vending Non-Core Assets Cover G&A $5.5 Million Reinvest in Flagships 50 Generated Since 2021 ACTIVE EXPLORATION Empire Project ACTIVE STAKING PROGR
Slide 6: Property Portfolio
TSX-V: COCO Property Portfolio Coast Flagship Property Coast Property FLAGSHIP PROJECTS: Deposits & Mines GOLDEN TRIANGLE 1. Copper Kettle RED CHRIS TOODOGGONE 2. Empire SHASTA GALORE CREEK BOND PROPERTIES 3. Huckleberry Camp - Virginia Silver & Sweeney KEMESS ESKAY CREEK BRUCEJACK ALEY (TASEKO) SCO
Slide 7: Flagship Projects
TSX-V: COCO Flagship Projects 1 2 3 COPPER KETTLE EMPIRE MINE VIRGINIA SILVER & SWEENEY MINES High Grade Cu-Au, Cu-Mo-Au, skarns possibly IOCG, High Grade Ag porphyry bulk tonnage potential vein hosted bulk tonnage potential, brownfield • Small past producing mines • Past producing operations (Empir
Slide 8: Northern Vancouver Island
TSX-V: COCO Northern Vancouver Island KNOB HILL NW CAPE SCOTT WIND FARM Coast’s Knob Hill NW (exploration stage) NW EXPO PORT HARDY RED DOG HUSHAMU COPPER KETTLE Northisle’s North Island Project (PEA-stage) HOLBERG Northisle Copper & Gold PEMBERTON HILLS 3.1 B lbs Cu & 6.9 Moz Au5 COAL HARBOUR ISLAN
Slide 9: Copper Kettle
TSX-V: COCO Copper Kettle • Calc-alkaline Cu-Mo-Au porphyry system • Part of “Island Copper Cluster” (10 km long structural and magnetic anomaly) • 1983-1989 BHP 31 diamond and 10 percussion holes; blind discovery under gravel cover over 1.8 km x 800m area • 17 drillholes returned significant copper
Slide 10: Copper Kettle
TSX-V: COCO Copper Kettle Drillhole – Hit Mineralization Drillhole – Shallow Depth Geophysical Anomaly Copper in Soil Anomaly 2025 – Coast’s 54-station AMT survey (500m spaced) O • PE spanning 14 km² N • Shallow conductive layer (Cu-Mo mineralization within OPEN sediments) • Larger resistive body un
Slide 11: Empire Mine
TSX-V: COCO Empire Mine < Port CLANCY McNei < Port Alice 18km • Brownfield – past producing mines (Au, Cu, Ag, Fe) ll 33 km PILGRIM PILGRIM TREND • Teck operated until 1972 • 10 km x 30 km property only partially explored KLASKISH INTRUSIVE OLD SPORT MINE Old Sport Trend (including Benson Mine)1 RAG
Slide 12: Empire Mine
TSX-V: COCO Empire Mine Target Drillhole – Hit Mineralization Drillhole – Short of Target Old Sport Trend Drillhole – Did Not Hit Mineralization Copper in Soil Anomaly (>100 ppm) • 2023 CSAMT survey targets: northwest & south of Historic Resistive Low Anomaly Benson underground and upper subparallel
Slide 13: Virginia Silver & Sweeney Mines
TSX-V: COCO Virginia Silver & Sweeney Mines Mine MORICETOWN VIRGINIA SILVER BELL Deposit GRANISLE Forgotten BC Silver Mines GRANISLE GLACIER GULCH SMITHERS DOME MOUNTAIN Virginia Silver • 1975-81 intermittent production, located 30 km north of Smithers LONE PINE TOPLEY • Unclassified resources are 2
Slide 14: Other Projects: Available for Purchase or Option
TSX-V: COCO Other Projects: Available for Purchase or Option Coast Flagship Property Projects ideally located in the heart of Active Mining Camps providing free leverage to millions of dollars Coast Property of exploration being spent by our neighbour's and optionality to monetize Deposits & Mines G
Slide 15: 2026 Work Program and News Flow
TSX-V: COCO 2026 Work Program and News Flow* Q1 2026 Q2 2026 Q3 2026 Q4 2026 1. Copper Kettle AMT Geophysics Compilation IP Geophysics Drill Ready Results 2. Empire Mine CSMAT Geophysics Interpretation Drill Ready Results 3. Virginia & Sweeney Silver Mines Compilation Geophysics Deal Ready 4. Other
Slide 16: Investment Highlights
TSX-V: COCO Investment Highlights Balancing Discovery with Discipline • Building value through strategic prospect generation and flagship project advancement 3 Flagship Brownfield & Strategic Projects • Copper Kettle: Post-discovery copper-moly-gold project located between Northisle and BHP • Empire
Slide 17: Thank You
TSX-V: COCO Thank You Adam Travis, CEO and Director adamt@coastcoppercorp.com HEAD OFFICE 904-409 Granville Street Vancouver, BC, Canada V6C 1T2 Email: info@coastcoppercorp.com Phone: 877-578-9563 coastcoppercorp.com 17