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Mariana Minerals resumes Copper One operations in Utah
Mariana Minerals has announced the resumption of mining operations at the Copper One project in south-eastern Utah, US. The reopening signifies a notable development in mining as Copper One becomes the first global site to utilise autonomous tools across mining, refining and project execution, all managed by a single operating system. Mariana took control of the 10,000-acre site, known for producing high-purity copper cathode since 2009, following its acquisition of Lisbon Valley Mining Company in the fourth quarter of 2025. Although refinery activities continued, mining operations were suspended in late 2024 due to ... (full story)