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Aclara updates preliminary economics for Chile’s Penco rare-earth project

Aclara Resources reported an updated preliminary economic assessment for its Penco ion-adsorption clay project in Chile’s Biobío region. Announced on 19 October, the study presents a resource-based project scenario; the technical report has an effective date of 18 September 2026.

Newsverum · Source brief1 min read

Event / data period: 2026-10-19

Published: · Updated:

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The assessment estimates a 17-year mine life and average annual production of 732 tonnes of rare-earth oxides contained in super-pure rare-earth carbonate. It lists 35.8 million tonnes of measured and indicated mineral resources and another 2.2 million tonnes inferred.

These are preliminary assessment estimates, not current production. The first-stage environmental approval covers the Victoria Norte, Luna and Maite extraction zones, the Neptuno deposition zone and the processing plant; remaining zones are expected to require a separate second-stage assessment.

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    Updated preliminary economic assessment

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Business

Brazilian Rare Earths reports resource and drilling progress in Bahia

Brazilian Rare Earths’ report for the quarter ended 30 September summarized activity across its Rocha da Rocha province in Bahia, Brazil. The Monte Alto mineral resource was reported at 11.3% total rare-earth-oxide grade, while the company described new mineralization at Sulista South and an extension at Sulista East.

Brazilian Rare Earths1 min read Data included
Business

Chile weather weighs on Anglo American’s third-quarter copper output

Anglo American said copper production across its operations fell 5% year on year to 174,900 tonnes in the quarter ended 30 September 2026. The company attributed the decline to severe winter weather in Chile and the use of lower-grade stockpile ore at Collahuasi.

Anglo American1 min read Data included