Latest Sierra Atacama News

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Cobre Limited’s Chilean subsidiary has increased its stake in the Sierra Atacama Copper Project from 45% to over 54% through a $12 million capital raise, with a clear path to majority control by year-end.
Maxwell Dee
Maxwell Dee
7 July 2026
Cobre Limited has achieved a swift operational turnaround at its Sierra Atacama copper mine, generating positive operating cash flow within two months of assuming control. The company targets a significant production ramp-up supported by capital investments and ongoing optimisation.
Maxwell Dee
Maxwell Dee
6 July 2026
Cobre Limited is progressing a major upgrade of its Sierra Atacama copper project in Chile, aiming to convert a large foreign resource estimate into a JORC-compliant Mineral Resource Estimate while launching a 40,000-metre drilling program targeting near-mine expansion and deeper sulphide mineralisation.
Maxwell Dee
Maxwell Dee
1 July 2026
Cobre Limited has secured an option to acquire 100% of 25 mining concessions adjacent to its Sierra Atacama copper project, significantly enlarging its landholding in northern Chile's IOCG belt with a staged, low-cost payment plan.
Maxwell Dee
Maxwell Dee
29 June 2026
Cobre Limited has secured majority control of the Sierra Atacama Copper Project in Chile through a $60 million capital raise, marking its transition from explorer to producer. The company plans extensive drilling and operational upgrades to boost production and resource confidence.
Maxwell Dee
Maxwell Dee
30 Apr 2026
Cobre Limited has kicked off a major 40,000-metre drilling campaign at its Sierra Atacama copper project in Chile, aiming to convert its existing NI 43-101 resource to JORC compliance and explore opportunities for a larger open-pit operation.
Maxwell Dee
Maxwell Dee
15 Apr 2026
Cobre Limited has completed a $60 million capital raise to acquire majority ownership of the Sierra Atacama Copper Mine in Chile, marking its transition from explorer to producer. Meanwhile, substantial shareholder Sinomine has increased its investment in Cobre’s Botswana copper project.
Maxwell Dee
Maxwell Dee
30 Mar 2026
Cobre Limited’s Chilean subsidiary has secured a majority stake and operational control of the Sierra Atacama Copper Project, setting the stage for potential full ownership through staged acquisitions and strategic governance changes.
Maxwell Dee
Maxwell Dee
26 Mar 2026
Strata Investment Holdings plc reported a striking £6.16 million comprehensive profit for 2025, propelled by robust investment portfolio returns and a significant revaluation uplift in its copper royalty assets. Despite operational delays from adverse weather, the company’s strategic focus on high-conviction resource investments and royalties positions it well amid evolving commodity markets.
Maxwell Dee
Maxwell Dee
27 Feb 2026
Cobre Limited has secured A$60 million to acquire a majority stake in the Sierra Atacama Copper Project in Chile, positioning itself as a significant copper producer with strong expansion potential.
Maxwell Dee
Maxwell Dee
12 Feb 2026

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