Question juridique clé
Whether the arbitral tribunal lacked jurisdiction because the arbitration should have lapsed after non-payment of the expert fee advance.
Solution extraite
The jurisdiction objection failed; even if framed as a jurisdiction issue, it was raised too late and therefore forfeited.
Motifs extraits
Challenges to the tribunal’s organization must be raised immediately in good faith; a party may not wait for the outcome and then invoke the defect on review.