A quick note on Hiscox v Weyerhaeuser  EWHC 2671 (Comm), in which Knowles J was asked to continue an anti-suit injunction restraining Weyerhaeuser from continuing proceedings in the US courts and ordering parties to turn to arbitration. He obliged.
In April 2018 Weyerhaeuser filed proceedings in the US District Court (Western District of Washington at Seattle)for a declaratory judgment in respect of certain of its insurance excess policies in the tower of excess liability. Weyerhaeuser sought, among other things, a declaration that there is no valid arbitration agreement applicable to any coverage disputes between itself and various defendant insurers and that the US District Court is the appropriate forum for any such disputes.
Knowles J lists the various proceedings pending in the US however particularly in the light of all parties being established businesses, is not impressed by arguments of comity or fairness to restrain the English courts from further involvement in the matter. He expresses the hope and expectation that the US courts will come to the same conclusion as himself, in light of the contractual provisions.
(Handbook of) EU private international law, 2nd ed. 2016, Chapter 2, Heading 2.2.1.