Update December 2016 the Court of Appeal has confirmed in  EWCA Civ 1267.
A longer title than readers are used to from this blog. However judgment itself is also an unusually long 163 pages. In  EWHC 465 Banco Santander Totta, the High Court was asked whether snowball interest rates swaps in loan agreements between a Portuguese Bank and four Portuguese public transport companies, should be declared invalid under Portuguese ‘mandatory’ law, applicable by use of the corrective mechanism of Article 3(3) Rome I.
The Transport Companies do not assert that BST wrongly advised them to enter into the swaps, or misrepresented the swaps to them. Rather, defences raised by the Transport Companies are that:
(1) under Portuguese law, each company lacked capacity to enter the swaps which are therefore void; this is on the basis (among other reasons) of an assertion that the swaps were speculative transactions; this defence applies regardless of the law applicable to the swaps; it is common ground that, if correct, it is a complete answer to the claim;
(2) although English law governs the Master Agreements, this is subject to Art. 3(3) of the Rome Convention; this provides that where all the elements relevant to the situation at the time of the choice of law are connected with one country only, the choice does not prejudice the application of rules of the law of that country which cannot be derogated from by contract (“mandatory rules”). Portuguese mandatory rules apply to the swaps, giving rise to two defences: a) under rules dealing with gaming and betting and ordre public, the swaps are void for being unlawful “games of chance”, alternatively speculations; b) seven of the nine swaps are liable to be terminated under rules dealing with an “abnormal change of circumstances” (which termination takes effect as though the swaps were void); this is on the basis that since 2009 (following the financial crisis), the reference interest rates relating to the swaps (EURIBOR and LIBOR) have been close to zero (and remain so at the time of this judgment);
(3) in presenting the swaps to the Transport Companies, the bank acted in breach of its duties under provisions of the Portuguese Securities Code which implement relevant European Union legislation; these apply to the bank as a financial intermediary and relate to the protection of the legitimate interests of the Transport Companies as clients, and to conflicts of interest; the breach is said to entitle the Transport Companies to damages thereby extinguishing their liabilities under the swaps.
Blair J reviews precedent (European (limited, mostly related to the preparatory works), English and Portuguese (likewise limited) and decides against the engagement of Article 3(3). I will not regurgitate all of the analysis: readers are best referred to the judgment, in particular p.65 onwards, and the decision at 411, where Blair J concludes
because of the right to assign to a bank outside Portugal, the use of standard international documentation, the practical necessity for the relationship with a bank outside Portugal, the international nature of the swaps market in which the contracts were concluded, and the fact that back-toback (sic) contracts were concluded with a bank outside Portugal in circumstances in which such hedging arrangements are routine, the court’s conclusion is that Art. 3(3) of the Rome Convention is not engaged because all the elements relevant to the situation at the time of the choice were not connected with Portugal only. In short, these were not purely domestic contracts. Any other conclusion, the court believes, would undermine legal certainty.
The latter element is quite important. Referring in particular to Briggs (at 374), the Court holds that the uncertainty of the rule of Article 3(3) should lead to its narrow interpretation. I agree. With party autonomy the core consideration of the Regulation, standard recourse to Article 3(3) [or 3(4) for that matter) under the pretext for instance of a general campaign against fraus legis is most definitely not warranted.
Permission was granted to appeal the issues on the Rome Convention (thank you to Ali Malek QC for pointing that out).
(Handbook of) European Private International Law, 2nd ed. 2016, Chapter 3, Heading 3.2.8, Heading 18.104.22.168