Questão jurídica principal
Whether the arbitral tribunal violated the right to be heard by refusing document production and closing evidence
Decisão extraída
No violation: the tribunal could, through anticipatory assessment of evidence, refuse further internal files as irrelevant to its equitable assessment.
Fundamentação extraída
The hearing right includes the right to offer relevant, timely evidence, but it does not prevent a tribunal from limiting evidence to material and suitable proof or from ending evidence when further proof would not change its conviction. The challenge attacked evidentiary handling, not a prohibited exclusion of a party from the process.