Great Southern Copper (GSCU) Corporate presentation summary

High-grade copper-silver discovery and resource expansion

• Drill hole CNG25DD001 at Mostaza mine intersected 20m at 3.3% Cu and 270g/t Ag, including 7m at 5.72% Cu and 490g/t Ag, significantly exceeding historical grades.

• Resource drilling at Mostaza is being fast-tracked, with a 5,000m diamond drilling and 5,000m scout RC program planned for 2025-26.

• Mineralisation remains open in all directions, with potential to expand along trend and at depth.

• Mostaza mine is a historical operation with non-JORC resource, now confirmed for high grades and lode thickness.

• Metallurgy studies and mapping of parallel structures are included in the ongoing work plan.

District-scale exploration and multi-target pipeline

• Especularita project covers over 75 km² of under-explored lithocap, with multiple drill-ready prospects including Lipa, Victoria, Aurelia, and Viuda.

• The region hosts several significant deposits in development, such as El Espino (123Mt @ 0.66% Cu, 0.24g/t Au) and Llahuin (149Mt @ 0.41% Cu eq).

• Landsat8 spectral surveys highlight the Colorada lithocap as a giant anomaly, suggesting potential for large-scale porphyry systems.

• Exploration strategy includes aggressive, low-cost drilling and continuous newsflow from multiple targets.

• 2025-26 program includes regional geophysics, mapping, sampling, and first-pass drilling at new targets.

Corporate and financial overview

• Market cap stands at £22.58m with 550.6m shares in issue and cash of US$1.10m as of Dec 2024.

• Major shareholders include Foreign Dimensions Pty (46.77%) and several directors.

• Multiple warrant and option schemes are in place, supporting future funding flexibility.

• Board and management bring extensive mining, exploration, and financial expertise, with a track record of major discoveries and successful exits.