By Adria Leung Lim, Jackson Phillips, Joshua Ward and Jordan Mamelak ( February 6, 2026, 8:13 AM EST) -- On Nov. 28, 2025, the Supreme Court of Canada (SCC) issued its decision in Lundin Mining Corp. v. Markowich, 2025 SCC 39, providing important clarification on one of the more complex areas of Canadian securities law: the distinction between a “material fact” and a “material change” under the Ontario Securities Act (the Act)....