Solismineralsltd Chess Depositary Interests Reveals Latest Mining Discovery

Significant Copper Mineralisation Points to Major Discovery Potential

Solis Minerals (ASX: SLM) has announced compelling new results from its wholly-owned Cinto Project in Peru, confirming additional high-grade copper mineralisation and substantially expanding the potential footprint of its porphyry copper deposits.

The latest discovery by Solis Minerals Ltd Chess Depositary Interests 1:1 includes channel sampling program highlights of 26.5m at 0.28% copper including 5.4m at 1.0% copper in Channel 11, complementing previous impressive results of 23.4m at 0.88% copper and 16.8m at 0.52% copper from earlier sampling efforts.

These results confirm copper porphyry mineralisation across a potential area measuring 3km long by 0.75km wide, setting the stage for what could develop into a significant copper discovery in one of the world's premier copper jurisdictions.

Strategic Location Near World-Class Copper Mine

What makes the Cinto Project particularly noteworthy is its location just 15km from Toquepala, one of Peru's largest and oldest copper mines with reserves of 2.1 billion tonnes at 0.47% copper and current production of approximately 200,000 tonnes of copper annually.

Solis Minerals CEO Mitch Thomas highlighted the significance of the findings: "These results confirm the significant potential at the Cinto Project, where we've substantially expanded Solis' porphyry copper mineralisation footprint. Notably, we're seeing mineralisation styles similar to those at the major Toquepala mine."

The Cinto Project is situated on the major Incapuquio Fault System, the same structural corridor that hosts the Toquepala, Quellaveco, and Cuajone copper mines, positioning it in prime geological real estate for a major discovery.

Understanding Porphyry Copper Systems: Why They Matter to Investors

Porphyry copper deposits represent some of the world's most valuable mineral resources due to their immense size and relatively consistent grades. These geological formations typically contain hundreds of millions to billions of tonnes of mineralised rock, making them ideal for large-scale, long-life mining operations.

While grades in porphyry systems (typically 0.3-0.7% copper) may appear modest compared to high-grade vein deposits, their massive scale and amenability to low-cost bulk mining methods make them economically attractive targets. The world's largest copper producers, including Freeport-McMoRan and Rio Tinto, derive significant production from porphyry deposits.

For investors, porphyry discoveries can create substantial value. The initial indications at Cinto suggest mineralisation styles similar to nearby Toquepala, which has operated profitably for decades and remains a cornerstone asset for Southern Copper Corporation.

Four Distinct Mineralisation Styles Identified

The latest discovery by Solis Minerals Ltd Chess Depositary Interests 1:1 has identified four distinct styles of copper mineralisation at Cinto:

1. Brecciated andesitic tuffs associated with intrusive hydrothermal breccias
2. Intrusive hydrothermal breccias
3. Dioritic and monzodioritic intrusions with propylitic or argillic alteration
4. Granodioritic batholith, commonly with chlorite

Importantly, the mineralisation styles identified at Cinto closely resemble those at the nearby Toquepala mine, where intrusive hydrothermal breccias serve as significant hosts for copper mineralisation. This geological similarity provides further confidence in the project's potential to host a major copper resource.

Clear Path Forward with Multiple Catalysts

Solis has outlined a clear development pathway for Cinto, with several near-term catalysts that could drive value for shareholders:

• Induced-Polarisation (IP) survey planning underway to support drill target definition
• Permitting initiated for drilling at Cinto in the second half of 2025
• Additional exploration of untested magnetic low anomalies, which typically correlate with hydrothermal alteration in porphyry systems

This progress at Cinto forms part of a broader strategy across Solis Minerals' Peruvian copper portfolio, which includes the Ilo Este and Chancho al Palo projects, both scheduled for drilling in the current quarter.

Why Investors Should Track Solis Minerals

The latest discovery by Solis Minerals Ltd Chess Depositary Interests 1:1 presents a compelling investment opportunity for several key reasons:

1. Strategic Portfolio in Tier-1 Jurisdiction: 100% ownership of multiple copper projects in Peru, one of the world's most productive copper regions.

2. Clear Path to Value Creation: Defined exploration pathway with drilling at two projects this quarter and Cinto planned for H2 2025.

3. Proximity to Major Deposits: Cinto's location near Toquepala (2.1Bt @ 0.47% Cu) enhances the geological potential.

4. Strong Technical Team: Led by Technical Director Mike Parker with significant experience in copper exploration.

5. Multiple Opportunities for Discovery: As CEO Mitch Thomas noted, "Solis Minerals' portfolio of 100% owned projects has incredible potential for discovery of multiple copper-gold resources capable of supporting mining operations."

The latest discovery by Solis Minerals Ltd Chess Depositary Interests 1:1 further validates Solis' exploration model and provides additional confidence in the company's ability to make a significant copper discovery. With copper prices expected to remain strong due to the global electrification trend and supply constraints, Solis Minerals is well-positioned to capitalise on the growing demand for this essential metal.

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