Tier One Silver is making significant strides at its Curibaya project in southern Peru, reporting exceptional rock sampling results that include silver grades up to 298,000 g/ton and gold grades nearing 1 kilogram. The company is strategically focusing its drilling efforts on the Cambaya corridor, a region believed to hold a more intact precious metals window with potential for a large porphyry copper system at depth.
Key Takeaways
- Exceptional rock sampling results with silver grades up to 298,000 g/ton and gold grades approaching 1 kilogram.
- Over 80 samples exceeded 1 kilogram of silver across a 5 km² footprint.
- Focus on the Cambaya corridor for drilling due to potential for preserved precious metals and porphyry copper upside.
- Experienced leadership team with extensive mining and exploration backgrounds.
- Significant progress made in consolidating 100% ownership of the ~17,000-hectare property.
Curibaya Project: A Glimpse into Exceptional Discoveries
The Curibaya project, located in a historically significant mining region of Peru, has yielded remarkable initial exploration findings. Tier One Silver’s extensive rock sampling campaign identified silver grades soaring to nearly 300,000 grams per ton and gold grades approaching one kilogram. More importantly, these high-grade results were consistent across a substantial five-square-kilometer area, with over 80 samples assaying more than one kilogram of silver per ton and 2.5 grams per ton of gold. This discovery is particularly noteworthy as the project is situated in Peru’s copper belt, where silver is typically a byproduct rather than a primary target.
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Get Your Free Starter GuideEvolving Geological Understanding and Strategic Drilling
Initial drilling programs at Curibaya, while targeting geophysical anomalies, did not yield the expected results. However, a strategic pivot to drilling directly beneath high-grade surface samples and trenches proved successful, revealing high-grade intercepts closer to the surface. This led the exploration team to believe they were intersecting the base of an eroded precious metals system. Independent consultants have validated this hypothesis, recommending a focus on the Cambaya corridor at higher elevations, which is expected to have preserved more of the precious metals mineralization. This area has since produced rock samples with eight kilograms per ton of silver and four grams per ton of gold.
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Get Your ChecklistUnveiling Porphyry Copper Potential
An unexpected but significant development from the drilling and consultant reviews is the indication of a large porphyry copper system underlying the precious metals mineralization. Deeper drill holes have shown increasing base metal content and alteration intensity with depth, alongside characteristic surface features of porphyry environments. This aligns with the project’s location within a prolific porphyry belt known for hosting major copper-silver producers.
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Compare Crash PerformancePath to Resource Definition and Operational Considerations
Tier One Silver is currently undertaking a second phase of drilling, focusing on the Cambaya corridor. While the company has identified six kilometers of vein corridors and widespread mineralization across its 17,000-hectare property, an estimated 10,000 meters of additional drilling is required before a resource can be defined. Operating in southern Peru presents unique challenges, including water scarcity and the need for significant infrastructure development, contributing to higher operational costs. However, the company benefits from Peru’s established mining framework, skilled workforce, and a cooperative relationship with the single local community.
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Create My RMD PlanFinancing in a Volatile Market
The company successfully raised approximately $6.5 million in late 2025, buoyed by a recent surge in silver prices. Despite subsequent market fluctuations, the current silver price environment remains more favorable than in previous years, enabling Tier One Silver to fund its ongoing exploration activities. The company’s strategy is centered on discovery and resource definition, aiming to attract a strategic partner or acquirer once the scale of the mineralized system is demonstrated.
Sources
- Tier One Silver Targets Bonanza Silver Veins with Porphyry Copper Upside at Curibaya – Article, Crux Investor.
