SECTION 21 — Objection on lack of jurisdiction

21.1 If any of the parties intends to raise a plea that the arbitrator does not have jurisdiction to hear the whole or part of the dispute, for whatever reason, the party shall raise same in the submissions referred to in article s 6 and7 herein above and at the latest, during the meeting referred to in article 15(1) herein above. 21.2 At any time during the hearing, the arbitrator may of his own motion raise question in relation to his own jurisdiction based on grounds of public policy. In such case, the parties shall be invited to make their comments or state their views. 21.3 The arbitrator may rule on an objection on lack of jurisdiction either in an interim award or in a final or partial award on the merits. When in accordance with the provisions of Chapter III herein, an appeal against an interim award acknowledging jurisdiction or not, is filed before the Court in its judicial capacity, the arbitrator may nonetheless continue the arbitral proceedings while the appeal is pending before the Court.