If the Parties do not agree on the subject matter of the dispute before the President of the Arbitral Tribunal is designated, the Arbitral Tribunal shall determine the subject matter.
5. 若当事双方在仲裁庭庭长获得指定之前对争端所涉主题事项持不同意见，则应由仲裁庭决定所涉主题事项。