Arbitration – Agreement. The appeal of the claimant company (JSG) against a preliminary finding of arbitrators in a shipping dispute succeeded. The arbitrators had found that there had been a valid arbitration agreement between the defendant owner and JSG. The Commercial Court held that the owner had not established that a guarantee by which JSG would guarantee the obligations of a third party had been properly authorised by JSG. Accordingly, there had been no valid arbitration agreement between the parties, and the arbitrators had lacked jurisdiction.