Question juridique clé
Whether the public law appeal against the incidental arbitral award was admissible despite the parties' waiver clause.
Solution extraite
The parties validly excluded all appeals against the arbitral tribunal's awards under Art. 192(1) PILA, so the appeal could not be heard.
Motifs extraits
A waiver need not cite Art. 190 or 192 PILA expressly. It is sufficient that the clause clearly and expressly shows the common intention to exclude all possible remedies. The contract wording 'exclude all and any rights of appeal from all and any awards' unambiguously covered all challenges, including the public law appeal.