Highlights:

• New third-party ore agreements are expected to add approximately 300 tonnes of copper cathode per month from Q4 2026.
• Existing production guidance remains unchanged as the company targets higher utilisation of its Sierra Atacama processing plant.
• Shares were trading at AU$0.415, up AU$0.035 or 9.21% based on the provided market data.

New Agreements Mark a Growth Step

Cobre Limited (ASX: CBE) has announced a significant development for its Sierra Atacama copper operation in Chile, with two third-party ore purchase agreements expected to strengthen near-term production and cash flow. The announcement was released on 9 September 2026, with the company confirming that its wholly owned subsidiary, Sierra Atacama SpA, had entered agreements with two copper oxide miners in the Antofagasta region. Deliveries are scheduled to ramp up from Q4 2026.

Under the agreements, the company expects to receive between 50,000 and 75,000 tonnes of ore per month, grading approximately 1.0% to 1.5% total copper. This feed is expected to contribute around 300 tonnes of additional copper cathode each month.

Higher Plant Utilisation

The agreements are particularly important because the additional ore can be processed through Sierra Atacama's existing SX-EW infrastructure, which has 20,000 tonnes per annum of installed cathode capacity but is currently operating below nameplate levels. Unlike internally mined material, the third-party ore does not carry Cobre's mining and development costs. Instead, incremental costs are primarily linked to the ore purchase price and variable processing expenses such as acid, power and reagents. Higher throughput could also spread fixed plant costs across a larger tonnage base, potentially improving unit economics.

Bridge Towards 2027 Expansion

Cobre said the agreements support its transition from the current underground operation towards a substantially larger open-pit operation from 2027. The additional third-party feed is intended to maintain higher plant utilisation during this transition while providing further metallurgical and operational experience. The company is also negotiating additional supply agreements with regional ore producers, which could further increase SX-EW utilisation and cash generation.

Market Reaction

The company's shares were quoted at AU$0.415, representing a 9.21% gain or AU$0.035 increase based on the market data provided. Overall, the new agreements could provide Cobre with an additional near-term revenue stream while positioning Sierra Atacama as a regional processing hub ahead of its planned 2027 production expansion.Note- All data presented is based on information available at the time of writing.Disclaimer for Kapitales ResearchThe materials provided by Kapitales Research, including articles, news, data, reports, opinions, images, charts, and videos ("Content"), are intended for personal, non-commercial use only. The primary goal of this Content is to educate and inform readers. This Content is not meant to offer financial advice, nor does it include any recommendation or opinion that should be relied upon for making financial decisions. Certain Content on this platform may be sponsored or unsponsored, but it does not serve as a solicitation or endorsement to buy, sell, or hold any securities, nor does it encourage any specific investment activities. Kapitales Research is not authorized to provide investment advice, and we strongly advise users to seek guidance from a qualified financial professional, such as a financial advisor or stockbroker, before making any investment choices. Kapitales Research disclaims all liability for any direct, indirect, incidental, or consequential damages arising from the use of the Content, which is provided without any warranties. The opinions expressed by contributors or guests are their own and do not necessarily reflect the views of Kapitales Research. Media such as images or music used on this platform are either owned by Kapitales Research, sourced through paid subscriptions, or believed to be in the public domain. We have made reasonable efforts to credit sources where appropriate. Kapitales Research does not claim ownership of any third-party media unless explicitly stated otherwise. 

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