"If the parties, one or more of whom is domiciled in a member state, have agreed that a court or the courts of a member state are to have jurisdiction to settle any disputes which have arisen or which may arise in connection with a particular legal relationship, that court or those courts shall have jurisdiction. Such jurisdiction shall be exclusive unless the parties have agreed otherwise."
"Subject to the provisions of this Convention, persons domiciled in a Contracting State shall, whatever their nationality, be sued in the courts of that State. Persons who are not nationals of the State in which they are domiciled shall be governed by the rules of jurisdiction applicable to nationals of that State."
"In coming to my conclusion, I applied the following legal principles that can be derived from the authorities: i) The fact that the parties have freely negotiated a contract providing for the non-exclusive jurisdiction of the English courts and English law, creates a strong prima facie case that the English jurisdiction is the correct one. In such circumstances it is appropriate to approach the matter as though the claimant has founded jurisdiction here as of right, even though the clause is non-exclusive; see e.g. per Hobhouse J in S & W Berisford Plc v New Hampshire Insurance Co. [1990] 1 Lloyd’s Rep. 454, at 463; per Waller J in British Aerospace Plc v Dee Howard Co [1993] 1 Lloyd’s Rep. 368; per Moore-Bick J in Mercury Communications Ltd v Communication Telesystems International [1999] 2 AER 33 at page 41. ii) Although, in the exercise of its discretion, the court is entitled to have regard to all the circumstances of the case, the general rule is that the parties will be held to their contractual choice of English jurisdiction unless there are overwhelming, or at least very strong, reasons for departing from this rule; see e.g. British Aerospace Plc supra ; Mercury Communications supra at page 41; per Aikens J in Marubeni Hong Kong & South China Ltd v Mongolian Government [2002] 2 AER (Comm) 873 at 891(b) – (f); per Lawrence Collins J in BasCapital Funding Corporation and others v Medfinco Ltd and Others [2004] 1 Lloyd’s Rep. 652, at paragraphs 192-195; per Gross J in Import Export Metro Ltd v Compania Sud Americana de Vapores SA [2003] 1 Lloyd’s Rep. 405. iii) Such overwhelming or very strong reasons do not include factors of convenience that were foreseeable at the time that the contract was entered into (save in exceptional circumstances involving the interests of justice); and it is not appropriate to embark upon a standard Spiliada balancing exercise. The defendant has to point to some factor which it could not have foreseen at the time the contract was concluded. Even if there is an unforeseeable factor or a party can point to some other reason which, in the interests of justice, points to another forum, this does not automatically lead to the conclusion that the court should exercise its discretion to release a party from its contractual bargain; see cases cited supra. In particular, the fact that the defendant has, or is about, to institute proceedings in another jurisdiction, not contemplated by the non-exclusive jurisdiction clause, is not a strong or compelling reason to relieve a party from his bargain, notwithstanding the undesirability of parallel proceedings. Otherwise a party to a non-exclusive jurisdiction clause could avoid its agreement at will by commencing proceedings in another jurisdiction; see cases cited supra and The El Amria [1981] 2 Lloyd’s Rep. 119; Breams Trustees Ltd v Upstream Downstream Simulation Services[2004] EWHC 211 (Ch) per Patten J at paragraphs 27 and 28."
"As Waller J pointed out in British Aerospace Plc v Dee Howard Co[1993] 1 Lloyd's Rep 368 at 376, speaking of matters of convenience in the context of a non-exclusive jurisdiction clause, it is necessary to point to some factor which could not have been foreseen in order to displace the bargain which has been agreed. In such a case that party must show some good reason or special cause why it should not be held to its agreement to submit to the agreed jurisdiction."