Key legal question
Whether the appeal against the international arbitral award was admissible despite an express waiver of challenge
Extracted holding
The parties validly and expressly waived any challenge to the award under Art. 192 PILA, so the appeal was inadmissible.
Extracted reasoning
The clause expressly referred to Art. 192 PILA and clearly showed the parties' intention to exclude any action before the Swiss Federal Supreme Court. The appellant was bound as successor to the original contracting party.