Kluwer: A Threat to The Kompetenz-Kompetenz Principle? The Intervention of The São Paulo Appellate Court in The Formation of The Arbitral Tribunal in Vale v. Shareholders

In the appeal no. 1129029-43.2024.8.26.0100, judged on November 18, 2025, the São Paulo Appellate Court (TJSP), the largest in Latin America, rendered a decision that disrespects the independence of the arbitral jurisdictional system by annulling a decision of the President of CAM B3 (CAM B3 Decision) before the arbitral tribunal had the opportunity to assess the issue.