Star Copper Corp. · CSE:STCU

Star Copper — Technical Presentation (April 2026)

46 slides from Star Copper's technical presentation, April 2026

Slide 1: Star Porphyry Copper Gold Project, Northwest British Columbia
Star Porphyry Copper Gold Project, Northwest British Columbia 2026 TECHNICAL PRESENTATION April 2026
Slide 2: Legal Disclaimer
Legal Disclaimer This document contains forward-looking information, including statements relating to the “expectations”, “intentions” or “plans” of the company. Such information involves known and unknown risks, uncertainties and other factors -- including availability of funds, the results of fina
Slide 3: Highlights
Highlights Star Copper is a mineral exploration company focused on advancing Canadian mining projects Our flagship Star Project is located within the well- known Golden Triangle and Golden Horseshoe regions of British Columbia, an exceptionally prolific area for porphyry copper-gold projects. The AI
Slide 4: Star Copper Corp.
Star Copper Corp. Star Copper Corp. is a Canadian mineral exploration company focused on the discovery and advancement of large-scale copper-gold systems in British Columbia. The Company’s flagship Star Project is located in British Columbia’s prolific Golden Triangle and hosts multiple high- priori
Slide 5: Management Team
Management Team DARRYL JONES BRAD NICHOL JEREMY HANSON P.GEO. PRESIDENT & CEO BOARD CHAIRMAN SENIOR PROJECT GEOLOGIST 15+ years of capital market Mr. Nichol has 25+ years of experience as a senior Mr. Hanson is a professional experience and an established executive and director in global finance and
Slide 6: Management Team
Management Team BILL MORTON M.SC., P.GEO. SEAN CHARLAND SEAN KINGSLEY JODY BELLEFLEUR CPA, CGA DIRECTOR, TECHNICAL LEAD DIRECTOR DIRECTOR CHIEF FINANCIAL OFFICER Driving force in the acquiring and A seasoned communications A mining investor & entrepreneur Ms. Bellefleur brings over 20 years’ optioni
Slide 7: History & Region
History & Region Work has been conducted on the Star property since its discovery in 1937. Each program outlined below has returned positive results indicating high potential for significant copper-gold mineralization. • 1937 – Copper Creek showing discovered through prospecting • 1955 (Brikon Explo
Slide 8: Star Project Region
Star Project Region • 100 km west of Dease Lake • 50 km north of Telegraph Creek • Sheslay Airstrip allows for fixed wing service • 5 km trail to Camp/Star Doubleview Gold Corp’s recently announced updated estimate outlines 609 million tonnes of Measured and Indicated Mineral Resources grading 0.43%
Slide 9: Star Porphyry Copper-Gold Project
Star Porphyry Copper-Gold Project Key Points Star Deposit is an Star Copper 2025 Exploration Program drilled intermediate calc-alkaline 5000m across three targets and advanced to alkalic porphyry deposit several satellite targets toward drill testing Multiple mineralizing intrusive Remains Open, to
Slide 10: 2025 Exploration Program - Phase 1 - Complete
2025 Exploration Program - Phase 1 - COMPLETE The Star Project, NW British Columbia Camp & Logistics Completion of Phase 1 Program – maiden drilling + detailed mapping and sampling • Camp refurbishment completed to support 2025 exploration program, upgraded facilities Drilling campaign: 6 holes, <2,
Slide 11: 2025 Exploration Program - Phase 1 - Drilling Overview
2025 Exploration Program - Phase 1 - COMPLETE Plan Map - Phase 1 Drilling Overview The Phase 1 drilling campaign totaled over 2,700 meters and focused on testing: • Near-surface oxide mineralization (supergene zone). • Lateral and vertical continuity of copper and gold mineralization. • Structural c
Slide 12: 2025 Exploration Program - Phase 2 - Complete
2025 Exploration Program - Phase 2 - COMPLETE The Star Project, NW British Columbia Camp & Logistics Phase 2 Program – Complete and awaiting assays • Additional Camp upgrades for late fall and early winter The campaign consisted of: ~4,000m of drilling operations • Target step-outs & deeper drilling
Slide 13: Red Chris Mine vs Star Project Exploration - Comparison
Red Chris Mine vs Star Project Exploration - Comparison Item Red Chris Deposit Star Copper – Star Project Location Golden Triangle, northwestern BC, 78km south of Dease Lake Golden Triangle, northwestern BC, 100km west of Dease Lake, BC Ownership & operator 70% Newmont (operator via Newcrest Red Chr
Slide 15: Regional Geology
Star Project Regional Geology Stikine Arch Comprised of island arc volcanic, marine sedimentary, and plutonic rocks of the Middle to Late Triassic Stuhini Group that forms a dominant portion of the accreted geological terrane of Stikina. In this region, several large Late Triassic calc-alkalic to su
Slide 16: Property Geology
Star Project Property Geology Stuhini Group – Middle to Lake Triassic • sub-marine andesitic volcanics and epiclastics, bedded sediments and breccias Stikine Suite Intrusives Intruded by the Star Stock in the center • multiphase diorite, quartz monzodiorite, late monzonite dykes • Monzonite U/Pb dat
Slide 17: Targets
Star Project Targets Star Main – ~18,000m of drilling over 62 holes (well defined supergene zone) Star North – 400 m drill hole to test chargeability and soil anomaly 1.5 km northeast of Star Main Star East – untested large coincidental soil and chargeability anomaly Copper Creek – historically, dri
Slide 18: Deposit
Star Project Star Deposit The Star stock is a multi-phase intrusion, approx. 500x1000m, comprised of mineralized diorite to tonalite (including qtz- monzodiorites and monzodorite dykes) and later unmineralized phases of monzonite including crowded pink feldspar porphyry The Star target is covered by
Slide 19: Cross Sections
Star Project Cross Sections Intersections showing well mineralized supergene zone and transition to hypogene Strong mineralized corridor open to depth and in most directions © 2026 STAR COPPER CORP. 19
Slide 20: Intrusive Phases
Star Project Intrusive Phases Multi Phase Mineralization QUARTZ MONZODIORITE QUARTZ DIORITE CROWDED PINK FELDSPAR PORPHYRY © 2026 STAR COPPER CORP. 20
Slide 21: Mineralization
Star Project Star Mineralization Typical porphyry style mineralization in supergene and hypogene settings. Supergene zone locally extends to between 80-100 m depth and is characterized by disseminated azurite and malachite with fractures coated in tenorite. Covellite, cuprite, turquoise, and native
Slide 22: Mineralization: Early Veins
Star Project Mineralization Early Veins Sinuous qtz-cpy-stockwork © 2026 STAR COPPER CORP. 22
Slide 23: Mineralization: Early Veins
Star Project Mineralization Early Veins 1- qtz-cpy-py 2- cpy 3- py-cpy±qtz Early Veins: Proximal to QMD - Hotter Sinuous A- veins Sinuous qtz-cpy-stockwork S037 408.00-416.00m 0.64% Cu, 0.19 g/t Au © 2026 STAR COPPER CORP. 23
Slide 24: Mineralization: B Veins
Star Project Mineralization B Veins Sheeted evenly spaced 1 – 10 mm sinuous to planar quartz-pyrite-magnetite-chalcopyrite veins Developing internal banding © 2026 STAR COPPER CORP. 24
Slide 26: Mineralization: A & D Veins
Star Project Mineralization A & D Veins Late D Vein: carb+chl+py reopening A1 vein and displacing A2 Vein Early A1 Vein 2-10mm sinuous qtz-cpy-py w/ kspar alteration halo Early A2 Vein 2-12mm qtz-cpy-py © 2026 STAR COPPER CORP. 26
Slide 27: Mineralization: Late Veins
Star Project Mineralization Late Veins Late – D Veins - Vertical 8-12 mm sinuous quartz-pyrite-chalcopyrite-molybdenite vein with sericite halo © 2026 STAR COPPER CORP. 27
Slide 28: Mineralization: Copper Oxides
Star Project Mineralization Copper Oxides Supergene zone locally extends 4 - zeolite-gypsum 1 - quartz-sulphide to between 80-100 m depth and is characterized by disseminated azurite and malachite with fractures coated in tenorite. Covellite, cuprite, 2 - malachite-azurite turquoise, and native copp
Slide 29: Mineralization: Copper Oxides
Star Project Mineralization Copper Oxides 1 - quartz- sulphide 2 - malachite- azurite DISSEMINATED AZURITE “COPPER-CRETE” NATIVE COPPER CHRYSOCOLLA © 2026 STAR COPPER CORP. 29
Slide 30: Alteration
Star Project Star Alteration Typical porphyry style alteration including argillic, propylitic, phyllic and potassic alteration assemblages. Alteration is extensive, extends several hundred metres from the centre of the deposit and alteration assemblages commonly overlap Argillic – not widespread, co
Slide 31: Drilling
Star Project Drilling 62 DIAMOND DRILL HOLES TOTALLING ~18,000 METRES 2004-07 – FIRESTEEL (23 DDH 4,470 M) 2013 – PROSPER GOLD (6 DDH, 2,340 M) 2014 – PROSPER GOLD (20 DDH, 6,661 M) 2025 – STAR COPPER (12 DDH, 4700 M) Drilling defined mineralized area 550m north-south and 350m east- west, mineraliza
Slide 32: Star Copper Drilling Highlights
Star Copper Drilling Highlights Show Core Sample Assay Composite Interval Historic Historic Historic Hole ID from (m) To (m) Interval Lithology From (m) To (m) Interval Cu % Au g/t From (m) To (m) Interval Cu % Au g/t S-037 91.80 92.00 0.2 Greywacke 90.00 92.00 2.00 0.390 0.170 3.10 188.00 184.90 0.
Slide 33: Drilling to date
Star Project Drilling Drilling to date 2013 Drilling confirmed the deposit remains open to the north, west, northwest, northeast and to depth. 2014 drilling identified two previously unknown zones of highly silicified gold bearing rocks at depth in S037 (12m of 2.33 g/t Au) and near surface in S038
Slide 34: Drilling: Supergene Zone
Star Project Drilling Supergene Zone Supergene enrichment zone intact measuring 550 x 500 x 100 m with grades over 1% CuEq Dominated by Azurite and Malachite mineralization © 2026 STAR COPPER CORP. 34
Slide 38: North Target
Star Project Star North Target The Star North target is located approximately 1000 m northeast of the Star porphyry • 2015 prospecting uncovered new areas of mineralization consisting of chalcopyrite veins and disseminations within quartz monzodiorites with mal+az staining over 350+m, fine grained b
Slide 39: North Target
Star Project Star North Target Assays pending for the hole drilled in Phase 2 of 2025 campaign © 2026 STAR COPPER CORP. 39
Slide 40: Copper Creek Target
Star Project Copper Creek Target The Copper Creek target is the initial (1937) discovery showing on the property • Centered on an impressive gossan in the walls of Copper Creek characterized by extensive malachite and azurite staining • Copper and gold soil anomalies cover the target area over a 100
Slide 41: Copper Creek Target
Star Project Copper Creek Target Historic work: rock chip/trench sample data, no coordinates Sample # Description Au Ag Cu Pb Zn Ni (g/t) (g/t) (%) (%) (%) (%) Chip sample across 12’ of weakly S-1 serpentinized volcanics; 0.313 trace 0.25 chalcopyrite and malachite Chip sample across 55’ of altered
Slide 42: Copper Creek Target
Star Project Copper Creek Target 2014 – rope access sampling • Outlined an area 300x90 m with numerous mineralized samples exceeding 0.5% Cu (XRF) • andesitic volcanic rocks, tuff and crystal tuffs interbedded with tuffaceous argillite (Stuhini Group), intruded by sills and dikes of porphyritic ande
Slide 44: 2026 Planning
Star Project 2026 Planning 10,000 to 15,000m Drilling planned through Star Main, Copper Creek, and Star North Create a 4D geological model of mineralization bringing together surface and drilling data Quantec 3D IP Survey over all target zones Structural study of Star Main Additional Mapping, Trench
Slide 45: 3D Modelling
Star Project 3D Modelling Conceptual deposit model showing open in multiple directions Supergene zone well defined 2026 drilling will look to extend the know model and test the deeper hypogene mineralization © 2026 STAR COPPER CORP. 45
Slide 46: Thank You
Thank You Star Porphyry Copper Gold Project, Northwest British Columbia 2026 TECHNICAL PRESENTATION

Star Copper — Technical Presentation (April 2026) on 6ix

Star Copper — Technical Presentation (April 2026)

Slide 1: Star Porphyry Copper Gold Project, Northwest British Columbia

Slide 2: Legal Disclaimer

Slide 3: Highlights

Slide 4: Star Copper Corp.

Slide 5: Management Team

Slide 6: Management Team

Slide 7: History & Region

Slide 8: Star Project Region

Slide 9: Star Porphyry Copper-Gold Project

Slide 10: 2025 Exploration Program - Phase 1 - Complete

Slide 11: 2025 Exploration Program - Phase 1 - Drilling Overview

Slide 12: 2025 Exploration Program - Phase 2 - Complete

Slide 13: Red Chris Mine vs Star Project Exploration - Comparison

Slide 14: Star Project Topography

Slide 15: Regional Geology

Slide 16: Property Geology

Slide 17: Targets

Slide 18: Deposit

Slide 19: Cross Sections

Slide 20: Intrusive Phases

Slide 21: Mineralization

Slide 22: Mineralization: Early Veins

Slide 23: Mineralization: Early Veins

Slide 24: Mineralization: B Veins

Slide 25: Mineralization

Slide 26: Mineralization: A & D Veins

Slide 27: Mineralization: Late Veins

Slide 28: Mineralization: Copper Oxides

Slide 29: Mineralization: Copper Oxides

Slide 30: Alteration

Slide 31: Drilling

Slide 32: Star Copper Drilling Highlights

Slide 33: Drilling to date

Slide 34: Drilling: Supergene Zone

Slide 35: Targets

Slide 36: Long Section - Drill Traces

Slide 37: IP Chargeability

Slide 38: North Target

Slide 39: North Target

Slide 40: Copper Creek Target

Slide 41: Copper Creek Target

Slide 42: Copper Creek Target

Slide 43: Copper Creek 2025 Mineralization

Slide 44: 2026 Planning

Slide 45: 3D Modelling

Slide 46: Thank You