Latest Sierra Atacama News

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Cobre has outlined a three-stage plan to lift Sierra Atacama’s copper cathode capacity from its existing configuration to 18,000 tonnes per annum, then 25,000 tonnes, with a larger 50,000-tonne case under consideration. The targets depend on refurbishment, permitting, further drilling and resource modelling.
Maxwell Dee
Maxwell Dee
13 Oct 2026
Cobre has lifted its interest in the Sierra Atacama copper project to 62.86% after exercising a control option for approximately US$12 million. The move gives its Chilean subsidiary majority board representation as expansion, satellite pits and exploration plans advance.
Maxwell Dee
Maxwell Dee
12 Oct 2026
Cobre has completed its A$90 million capital raise, including an approximately A$17.7 million second tranche backed by its two largest shareholders and directors. The proceeds will support Sierra Atacama ownership, debt repayment, plant upgrades and exploration in Chile and Botswana.
Maxwell Dee
Maxwell Dee
2 Oct 2026
Cobre Limited (ASX:CBE) says its Sierra Atacama turnaround delivered a first cash-positive quarter, higher recovery and 879 tonnes of copper cathode production. The company remains loss-making at group level, but enters FY27 with more cash, a larger project stake and an ambitious drilling and expansion programme.
Maxwell Dee
Maxwell Dee
30 Sept 2026
Cobre has logged copper sulphide mineralisation in its first deep diamond hole at Sierra Atacama since 2021, extending the system below the existing operation. The result is encouraging but remains visual and preliminary, with laboratory assays due in October.
Maxwell Dee
Maxwell Dee
21 Sept 2026
Cobre has secured two ore supply agreements that could add about 300 tonnes of copper cathode a month from Q4 2026, without changing its existing production guidance. The deal is designed to lift utilisation of the under-used Sierra Atacama plant while the company transitions from underground to open-pit mining in 2027.
Maxwell Dee
Maxwell Dee
9 Sept 2026
Cobre Limited’s Chilean subsidiary has increased its ownership in the Sierra Atacama Copper Project to 62.86%, positioning the company for expanded copper output amid rising global demand.
Maxwell Dee
Maxwell Dee
31 Aug 2026
Strata Investment Holdings delivered a £16.48 million comprehensive profit for H1 2026, driven by a strong revaluation of its investment portfolio and maiden royalty income from Botswana copper assets.
Maxwell Dee
Maxwell Dee
26 Aug 2026
Cobre Limited’s Sierra Atacama project delivers first consecutive positive operating cash flow months, while a major drilling program and $90 million capital raise set the stage for growth.
Maxwell Dee
Maxwell Dee
29 July 2026
Cobre Limited deepens its footprint in Botswana’s Kalahari Copper Belt through a new partnership with Equinor to optimise in-situ copper recovery at Ngami, while drilling campaigns at Ngami and Okavango reinforce mineralisation continuity and highlight fresh exploration targets.
Maxwell Dee
Maxwell Dee
23 July 2026
Cobre Limited has secured A$72.4 million of a planned A$90 million placement, reinforcing its balance sheet and funding key expansions at the Sierra Atacama copper project.
Maxwell Dee
Maxwell Dee
16 July 2026
Cobre Limited has secured A$90 million through a two-tranche placement to boost production and exploration at its Sierra Atacama copper mine while strengthening its balance sheet.
Maxwell Dee
Maxwell Dee
9 July 2026

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