Supreme Court Greenlights Candelaria Disclosure Class Action Might Change The Case For Investing In Lundin Mining (TSX:LUN)

• In late November 2025, Lundin Mining Corporation announced that the Supreme Court of Canada upheld a 2023 Ontario Court of Appeal decision allowing a securities class action to proceed over the timing of disclosure of a 2017 pit wall instability and rockslide at the Candelaria Mine in Chile.
• This ruling means the certified class action will now move to the Ontario Superior Court of Justice, introducing additional legal and reputational uncertainty around Lundin Mining’s disclosure practices.
• We’ll now examine how the Supreme Court’s decision to let the Candelaria disclosure class action proceed may reshape Lundin Mining’s investment narrative.

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Lundin Mining Investment Narrative Recap

To own Lundin Mining today, you need to be comfortable with a copper focused, South America heavy portfolio where project execution and commodity prices drive the story. The Supreme Court’s decision to let the Candelaria disclosure class action proceed adds legal and reputational uncertainty, but it does not appear to alter the core near term catalysts around copper production and major project ramp ups, or the existing concentration and execution risks already present in the business.

The most relevant recent announcement is Lundin’s Q3 2025 update, where the company tightened and increased its 2025 copper production guidance to 319,000 to 337,000 tonnes. Against that backdrop, the Candelaria case now sits alongside existing ESG and disclosure concerns, reminding investors that legal and regulatory scrutiny can interact with Lundin’s concentrated asset base and shape how future operational updates are received by the market.

But while production guidance has been reinforced, the added litigation risk around Candelaria is something investors should be aware of as they consider...

Read the full narrative on Lundin Mining (it's free!)

Lundin Mining's narrative projects $3.6 billion revenue and $364.3 million earnings by 2028.

Uncover how Lundin Mining's forecasts yield a CA$24.55 fair value, a 5% downside to its current price.

Exploring Other Perspectives

Six fair value estimates from the Simply Wall St Community span a wide range, from about CA$1.78 to CA$24.55 per share. You can set those varied views against the company’s concentrated exposure to South American copper assets and consider how that risk might affect Lundin Mining’s longer term performance.

Explore 6 other fair value estimates on Lundin Mining - why the stock might be worth less than half the current price!

Build Your Own Lundin Mining Narrative

Disagree with existing narratives? Create your own in under 3 minutes - extraordinary investment returns rarely come from following the herd.

• A great starting point for your Lundin Mining research is our analysis highlighting 1 key reward and 1 important warning sign that could impact your investment decision.
• Our free Lundin Mining research report provides a comprehensive fundamental analysis summarized in a single visual - the Snowflake - making it easy to evaluate Lundin Mining's overall financial health at a glance.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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