EWHC 2598 (Comm) Kaifer Aislimientos, is a good illustration of the limits of Article 25 juncto recital 20’s lex fori prorogati rule.
Claimant argues that the Court has jurisdiction pursuant to Article 25 Brussels I Recast because the relevant contract contains an English exclusive jurisdiction clause and further contends that the relevant contract was concluded by AMS Mexico and/or AMS on behalf of AT1 and Ezion as undisclosed principals and that, as undisclosed principals, the contract – together with the jurisdiction agreement – was binding on AT1 and Ezion.
That is the only part of the judgment to feature the Brussels Regulation at all. Peter MacDonald Eggers DJ could have referred to CJEU precedent pro inspiratio, including Refcomp for instance. He could certainly also have referred to recital 20, and equally failed to do so.
In substance he applies the Brussels I Recast rule by applying lex fori prorogati (here: English law) to all but the formation of consent questions relevant to the validity of choice of court (here: under what circumstance undisclosed principals are subject to choice of court).
(Handbook of) EU private international law, 2nd ed. 2016, Chapter 2, Heading 188.8.131.52.