Great Southern Copper Plc · LSE:GSCU
Great Southern Copper — Corporate Update (May 2023)
26 slides from Great Southern Copper's corporate update, May 19, 2023
Slide 1: Exploration Update
Especularita lithocap Chile Focused Copper and Gold Exploration Exploration Update LSE:GSCU May 2023 1
Slide 2: Disclaimer
Disclaimer The information contained in these slides and the accompanying oral presentation (together, the "Presentation") have not been approved by an authorised person within the meaning of the Financial Services and Markets Act 2000 ("FSMA"). If any person is in any doubt as to the contents of th
Slide 3: Highlights
Highlights Multiple high-grade Cu-Au targets drill-ready Large prospective claim block 100% held by GSC Discovery of large-scale intrusive-related Cu-Au system Emerging Cu-Au trend in Tier 1 copper jurisdiction Experienced management with strong discovery record High-grade Cu-Au vein-breccia, Victor
Slide 4: Key achievements
Key achievements Excellent progress since listing in December 2021 (raised c£3.5 million): Especularita Project • Commenced exploration campaign at Especularita • Results demonstrate discovery potential for multiple high-grade Cu-Au deposits • Building pipeline of drill targets • Regional exploratio
Slide 5: Drill-ready targets sticking out of the ground
Drill-ready targets sticking out of the ground 5 km cumulative trend of untested 13.7 g/t Au hydrothermal qtz-carb vein breccias Teresita prospect vein-breccia 5
Slide 6: 2023 Exploration Programme
2023 Exploration Programme Q1 Q2 Q3 Q4 Especularita ESPECULARITA PROJECT • Regional mapping - identifies district-scale potential for porphyry- epithermal-skarn-IRGS deposits Teresita / Victoria exploration • Regional sampling - discovers high-grade vein-breccia swarms at Aurelia exploration Teresit
Slide 7: Exploration Timeline – news flow
Exploration Timeline – news flow H1 2022 Q2 2022 H1 2023 H2 2023 H2 2024 H2 2024 Mag surveys Regional Scout drilling Monzonite targets Prospect exploration PCD Prospect exploration Phase 2 drilling San Lorenzo exploration Chinchillon targets 2022 2023 2024 Especularita H1 2022 H2 2022 H1 2023 Q2-3 2
Slide 8: Investment Opportunity
INVESTMENT OPPORTUNITY Large claim blocks in emerging under-explored coastal belt Two early-stage, large scale Cu-Au projects – 100% owned Exploration results underscore potential for significant discovery San Lorenzo Project: Especularita Project: • Discovery of IRCG* system • District scale PCD* s
Slide 9: Chile: Globally Significant Copper Mining Destination
Chile: Globally Significant Copper Mining Destination MINISTRO HALES (CODELCO) Leading Copper Mines • Largest producer and exporter of copper in Chile in 2020 CENTINELA* (ANTOFAGASTA MINERALS) (by 1000 metric tonnes) • Largest reserves of copper and 4th largest for gold RADIOMIRO TOMIC (CODELCO) • R
Slide 10: Especularita – High-grade Cu-Au targets
Especularita – High-grade Cu-Au targets Punitaqui • District-scale mineralisation system showing evidence of porphyry – Cu-Au mine N epithermal – skarn style mineralisation 10 km • Project partially includes and surrounds the La Colorada lithocap - a large La Colorada lithocap under-explored advance
Slide 11: Especularita – Complete Porphyry – Epithermal System
Especularita – Complete Porphyry – Epithermal System • “Boots-on-ground” exploration by GSC has identified a pipeline of drill targets at Especularita Epithermal style quartz-carbonate vein-breccia Outcropping disseminated copper hosted in Porphyry style stockwork veining in weathered systems with h
Slide 12: Especularita – Pipeline of untested high-grade Cu-Au targets
Especularita – Pipeline of untested high-grade Cu-Au targets Victoria Prospect Teresita Prospect Aurelia Prospect • High grade Cu-Au in vein-breccia • High grade Au-Cu in vein-breccia • High grade Cu-Au in skarn rocks • Up to 6.9% Cu, 1.3g/t Au in outcrop • Up to 13.1g/t Au, 2.9% Cu in outcrop • Up
Slide 13: Teresita prospect – High-grade Au-Cu vein and breccia targets
Teresita prospect – High-grade Au-Cu vein and breccia targets • +5km cumulative strike of quartz-carbonate vein- breccias and open along strike • Gold grades up to 13.7g/t from surface samples • Copper grades up to 2.9% in mine dump samples • No evidence of historical drilling • Copper mineralised t
Slide 14: Victoria prospect – High-grade Cu-Au in vein-breccias
Victoria prospect – High-grade Cu-Au in vein-breccias • Quartz+carbonate vein-breccia swarm • Multiple vein-breccias mapped over 1 x 0.6km • High-grade Cu-Au in quartz-dominant zones • Up to 6.9% Cu and 4.3 g/t Au at surface • No historical drilling • Previous exploration by GSC includes; o Float ma
Slide 15: Victoria prospect – High-grade Cu-Au vein-breccia target
Victoria prospect – High-grade Cu-Au vein-breccia target Victoria • Quartz+carbonate vein-breccia swarm Rock Sample Highlights • Similar style to Teresita < Float Grid 2.1 % Cu* • Follow-up of float geochem led to outcrop 0.2 g/t Au discovery 1.7 % Cu* • Vein-bx structures open along strike 4.3 g/t
Slide 16: La Colorada Lithocap - Porphyry Cu-Au targets
La Colorada Lithocap - Porphyry Cu-Au targets • Project centred on a large (>35km2) advanced argillic alteration system (La Colorada lithocap) • Geological and structural setting like the large Andacollo Cu mine lithocap porphyry deposits on trend – Andacollo (Teck) 90 km • Work by GSC includes; o R
Slide 17: San Lorenzo Cu-Au Project
San Lorenzo Cu-Au Project Productura Cu-Au deposit (HCH) N • Mining and Exploration Concessions covering 28,645 ha (286 km2) Cortadera Cu-Mo deposit 25 km (HCH) Dos Amigos • Re-invigorated exploration district in coastal PCD-IOCG belts due Pajonales & Cu-Mo mine (CEMIN) Frontera Cu-Mo deposits to re
Slide 18: Chinchillon – Intrusive Related Cu-Au Discovery
Chinchillon – Intrusive Related Cu-Au Discovery • >20-25km2 area of calc-potassic alteration in granodiorite intruded by monzonitic stocks • UST* indicates fertile system and cupola level erosion for monzonites • Abundant anomalous surface Cu-Au geochem, artisanal mine workings and placer gold worki
Slide 19: Chinchillon – Cu-Au+Mo fracture-vein mineralisation
Chinchillon – Cu-Au+Mo fracture-vein mineralisation • Oxidised fracture-vein swarms define broad calc-potassic alteration zone in granodiorite • Scout drilling confirms fractures host hypogene Cu-Au+Mo • Broad intervals of elevated Cu-Au-Mo (>250-500ppm Cu) associated with fracturing 1-2 orders of m
Slide 20: Chinchillon – Monzonite-hosted Cu-Au and UST
Chinchillon – Monzonite-hosted Cu-Au and UST • Dyke swarms and stocks of monzonite invade granodiorite o scout drilling tested only 2 dykes • UST indicates high level (cupola) and potential for fertile Cu-Au system • Elevated Cu (>300-500ppm Cu) relative to granodiorite indicates the monzonites are
Slide 21: Copper and Gold – Strong Market Drivers
Copper and Gold – Strong Market Drivers COPPER is powering the clean energy transition • Electric vehicles (up to 4x more copper compared to internal combustion engine) • Solar panels, wind turbines, hydro and thermal energy • Electrical wiring and high-speed telecommunication devices • Infrastructu
Slide 22: Summary
Summary • Chile Largest producer and exporter of copper • Jurisdiction Tier 1 - Globally significant mining location • Copper and gold Strong market drivers • Two projects San Lorenzo Cu-Au and Especularita Cu-Au • 100% rights Leveraged for success. No NSR • Infrastructure Well located near to roads
Slide 23: Appendices
Appendices GSC’s 100% Chilean exploration team, Especularita project 23
Slide 24: Model for Alkali Porphyry Cu-Au Deposits
Model for Alkali Porphyry Cu-Au Deposits (Holliday and Cooke 2007) Ridgeway deposit, Cadia Valley San Lorenzo, West of Chincillon Fault 24
Slide 25: Chinchillon – Trace element ratios SLD013 example
Chinchillon – Trace element ratios SLD013 example • Al3O2/TiO2, Sr/Y and V/Sc ratios used to determine intrusive fertility for intrusive-related Cu-Au deposits* • Chinchillon monzonite ratios indicative of Cu-Au ore productive intrusives • Further studies in progress SLD013 70.0 Monzonites 60.0 SLD0
Slide 26: Contact us: info@gscplc.com
Contact us: info@gscplc.com Drilling at San Lorenzo project 26