Conflict of jurisdiction raised by one of the parties between the São Paulo Appellate Court (TJSP) and the CIESP Arbitral Tribunal. Controversy over a mercantile lease agreement. Grant of a preliminary injunction in an incidental emergency relief action staying the arbitration proceedings. Subsequent procedural order issued by the arbitral tribunal to "maintain the date set for the signing of the terms of reference, in order to thereafter decide on its jurisdiction." Conflict of jurisdiction not heard by the Superior Court of Justice (STJ) because the arbitral tribunal had not yet rendered a decision on its own jurisdiction: