Sunstone Metals (STM) Noosa Mining Investor Conference summary

Conference overview

• Session focused on gold and copper mining, highlighting major assets, industry trends, and value realization through resource growth and early production opportunities.

Strategic vision and market positioning

• Focus on developing large, long-life gold-copper assets with low all-in sustaining costs and scalable growth potential.

• Portfolio weighted 75% gold and 25% copper, targeting commodities with strong future demand.

• Emphasis on value realization through resource growth, development, and funding pathways.

• Projects located in Ecuador, a region with significant gold-copper endowment and supportive government policies.

• Strategic options under consideration include joint ventures, strategic investments, and corporate opportunities to unlock value.

Project portfolio and growth

• Bramaderos: 2.7Moz AuEq maiden JORC resource, targeting 10M+ oz, with an additional exploration target of 3.3–8.6Moz AuEq.

• El Palmar: 1.2Moz AuEq maiden JORC resource, targeting 15M–45M oz, with significant expansion potential.

• Both projects feature large, at-surface porphyry systems with complementary high-grade epithermal zones and low strip ratios.

• Limon deposit at Bramaderos offers near-term, lower CapEx production potential (100,000 oz/year) and high-grade intersections up to 185m @ 2.85g/t AuEq.

• Ongoing drilling and exploration are expected to expand resources and define higher-grade zones.