- Massive Gold, Silver, and Copper Deposit (San Juan Province)
In September 2025, geologists confirmed what they described as the largest discovery of the past 30 years in Argentina’s Andean region: over 80 million ounces of gold and silver combined and more than 12 million tons of copper. This discovery, made by the Vicuña joint venture between BHP and Lundin Mining, is valued at approximately $337 billion and is located in San Juan Province, part of the Andes mining corridor that adjoins Chile. - Lunahuasi Copper-Gold Porphyry and High-Grade Gold Discovery (San Juan)
In mid-2025, NGEx Minerals announced two major finds at its Lunahuasi Project in San Juan: a new copper-gold porphyry system and a distinct ultra-high-grade gold vein system. Some assays showed “visible free gold” in quartz veins—indicating exceptionally rich mineralisation. This builds on earlier phases that already established Lunahuasi as one of Argentina’s promising new copper-gold assets. - New Graphite Discovery (La Rioja Province)
In October 2025, Integra Capital disclosed a graphite discovery at its Teo Project in La Rioja Province. Although the resource has not yet been quantified, the company has confirmed the presence of high-quality flake graphite suitable for battery production, particularly for electric vehicles. The find covers roughly a 10 km stretch, expanding Argentina’s exposure to critical minerals beyond lithium. - Filo del Sol Expansion (San Juan–Chile Border)
Updated estimates published mid-2025 revealed that the Filo del Sol copper deposit may contain five times more metal than previously thought, making it one of the largest copper deposits globally. This project, jointly undertaken by BHP and Lundin Mining, continues to garner international attention for its potential contribution to the green energy transition.
Broader Mining Expansion
Argentina’s mining exports have reached record highs in 2025, exceeding US$4.2 billion in the first nine months alone. While gold maintains dominance, lithium and copper are now taking larger shares as new operations come online. The Salta, Catamarca, and Jujuy provinces continue to anchor Argentina’s lithium triangle, but new finds in San Juan and La Rioja are broadening the country’s mineral base.
Altogether, 2025 has marked a historic year for Argentina’s mineral discovery landscape, spanning traditional metals (gold, silver, copper) and critical battery materials (lithium, graphite).
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