On 11 June 2024, the UK Court of Appeal handed down its judgment in the case of Celestial Aviation Services Limited v UniCredit Bank GmbH (London Branch) [2024] EWCA Civ 628. In summary, the Court of Appeal determined that, in the context of payment obligations under standby letters of credit (“LCs”), sanctions measures relating to financing the supply of restricted items can apply retrospectively as well as prospectively, significantly widening the scope of application of…