Kuwait Court of Cassation principle number 238

An appeal transfers the action to the Court of Appeal with its factual elements and legal evidence, solely within the limits of what has been appealed. A new ground may be added while the original claim remains unchanged. An example concerning the invalidity of a lease of shops concluded by a non-Kuwaiti, which does not prevent him from basing his appeal on unjust enrichment as a new ground for the claim for equivalent performance.