Kuwait Court of Cassation principle number 1525

Entitlement to interest for delay in paying commercial debts as soon as they fall due. The condition thereof. Their subject matter must be a sum of money of a known amount when it arises; otherwise, interest runs from the date of the final judgment. - An obligation of a known amount when it arises. Its meaning. Determination of its amount must rest on fixed bases agreed by the parties, with the judiciary having no discretion to assess it, even if the debtor disputes its amount. The challenged judgment's departure from this view. A violation of law requiring its cassation.