1.12.2025

"Supreme Court Allows Investor Suit Against Lundin Mining"

OTTAWA — The Supreme Court of Canada says an investor’s legal action against a mining company over its decision not to immediately publicize information about a production setback can proceed

OTTAWA — The Supreme Court of Canada has ruled that a legal action initiated by an investor against a mining company can proceed, focusing on the company's failure to promptly disclose critical information regarding a production setback. This case arises from events that unfolded at Lundin Mining Corp.'s open-pit mine located in Chile in October 2017.

Shortly after discovering wall instability at its mine, Lundin experienced a rock slide that resulted in the temporary shutdown of part of its operations. However, the company chose not to disclose these important developments to the public immediately. Instead, it informed its investors during a scheduled update approximately one month later.

Following the release of this update, significant repercussions arose as the price of Lundin’s securities on the Toronto Stock Exchange plummeted by 16 percent the very next day. This drastic decline highlighted the significant impact of the delayed disclosure on investor confidence and market performance.

The investor leading the legal action, Dov Markowich, purchased shares of Lundin after the rock slide occurred but before the company’s announcement made the events public. Markowich sought permission to file a case against Lundin under Ontario's Securities Act, asserting that the company's failure to disclose information constituted a breach of legal obligations that significantly harmed investors like him.

Initially, Markowich's motion to proceed with the case was dismissed by the Ontario Superior Court of Justice. However, the situation took a turn when the Ontario Court of Appeal intervened, reversing the lower court's decision and allowing the case to move forward. In response, Lundin Mining appealed the decision to the Supreme Court of Canada, seeking to overturn the appellate ruling.

This ongoing legal battle underscores the complexities surrounding securities regulation and the obligations of companies to disclose critical information timely, particularly in the context of investment and stock market performance. The Supreme Court's ruling indicates that the case will now be examined further, setting the stage for significant discussions regarding corporate governance and accountability.

This report reveals the intricacies of investor rights and the legal frameworks governing securities in Canada, reflecting broader issues of transparency in corporate practices in the mining industry and beyond.

The ruling is poised to have implications not only for Lundin but also for other companies operating in the mining sector and beyond, as it highlights the importance of timely and accurate communication with investors. The case emphasizes the vital need for companies to act responsibly and in compliance with securities laws to maintain investor trust and protect the integrity of the financial markets.