The appellants, secured creditors of a bankrupt company, sought to amend their statement of claim in an Ontario action to allege informal liquidation and improvident realization by the respondent bank.
The respondent argued these issues were res judicata due to a prior Quebec court decision involving another creditor, in which the appellants had intervened.
The Court of Appeal held that the appellants were privies to the plaintiff in the Quebec action due to their active involvement and shared interest.
Therefore, issue estoppel applied, and the appellants were bound by the Quebec court's findings.
The appeal was dismissed, the cross-appeal allowed, and the motion to amend the statement of claim was dismissed.