3 The seat of the arbitration.E+W+N.I.
In this Part “the seat of the arbitration” means the juridical seat of the arbitration designated—
(a)by the parties to the arbitration agreement, or
(b)by any arbitral or other institution or person vested by the parties with powers in that regard, or
(c)by the arbitral tribunal if so authorised by the parties,
or determined, in the absence of any such designation, having regard to the parties’ agreement and all the relevant circumstances.