Lac minerals ltd. v. International corona resources ltd. (1989) - Supreme CourtLac minerals ltd. v. International corona resources ltd.,  2 SCR 574
·Corona and Lac were negotiating for a joint mine exploitation venture.
·It discussed with Lac Minerals about options, and provided them with private information. Including the possibility of purchasing the Williams property
·Lac Minerals acquired the Williams property but never informed Corona.
Issue: Was there a fiduciary obligation from Lac to Corona even if no contract was formed?
Held: YES and it was breached.