Ann: ICC Arbitration Hearing - Jin Cheng Jurisdictional Challenge, page-45

ARTICLE 35Notification, Deposit and Enforceability of the Award
6 Every award shall be binding on the parties. Bysubmitting the dispute to arbitration under theRules, the parties undertake to carry out any awardwithout delay and shall be deemed to have waivedtheir right to any form of recourse insofar as suchwaiver can validly be made.

But this is NOT an award. It's a ruling about jurisdiction, which can be appealed.