“When the arbitral tribunal rules that it has substantive jurisdiction and a party to arbitral proceedings who could have questioned that ruling – (a) by any available arbitral process of appeal or review, or (b) by challenging the award, does not do so, or does not do so within the time allowed by the arbitration agreement or any provision of this Part, he may not object later to the tribunal’s substantive jurisdiction on any ground which was the subject of that ruling.” 47. In the present case, the Tribunal made its award on13 February 2013 . If the Spanish State had wished to challenge the Tribunal’s jurisdiction pursuant to s 67 of the Arbitration Act, it would have had to lodge such a challenge within 28 days of the Award i.e. by no later than13 March 2013 . That time has now passed and no challenge has been made. Accordingly, I believe that any right to raise any objection to the Tribunal’s jurisdiction has been lost. 48. Further and in any event, for the reasons given in the Award, I believe that any challenge to the Tribunal’s jurisdiction is likely to fail. “When the arbitral tribunal rules that it has substantive jurisdiction and a party to arbitral proceedings who could have questioned that ruling – (a) by any available arbitral process of appeal or review, or (b) by challenging the award, does not do so, or does not do so within the time allowed by the arbitration agreement or any provision of this Part, he may not object later to the tribunal’s substantive jurisdiction on any ground which was the subject of that ruling.”
“…the right of a party to rely upon want of jurisdiction at enforcement stage will be dependent upon his not having participated in the arbitration proceedings (which is his right under section 72) or upon his having participated after having registered an objection.”