International Arbitration 2026

PHILIPPINES Trends and Developments Contributed by: Ricardo Ma P. G. Ongkiko, John Christian Joy A. Regalado and Ma Patricia B. Paz-Jacoba, SyCip Salazar Hernandez & Gatmaitan

matters is permissible only in the most exceptional circumstances, namely, where there is a violation of the Philippine Constitution, denial of due process, or serious questions about the arbitral tribunal’s integrity. These cases also illustrate that a claim of “evident partiality” is a serious allegation, which must be suf - ficiently and demonstrably shown, and that loosely invoking it will not merit a factual review of arbitral awards. Overall, these rulings strengthen arbitration in the Phil - ippines. They affirm the authority of arbitral tribunals and uphold the finality of their awards, reinforcing the value of party autonomy, the special character of arbi - tration, and its purpose to resolve, rather than prolong, disputes.

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