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IC Power and Kenon Holdings v. Peru, Decision on Annulment, June 26, 2026

26 Jun 2026
IC Power Ltd and Kenon Holdings Ltd v. Republic of Peru, ICSID Case No. ARB/19/19
Decision on Annulment (English)
Decision on Annulment (Spanish)
Document Details:
LISTED PARTICIPANTS
Decision on Annulment (English)
Decision on Annulment (Spanish)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's law firm
Respondent's law firm
Other counsel
Claimant's expert
Claimant's expert firm
Respondent's expert
Respondent's expert firm
Claimant's witness
Respondent's witness
Other witnesses
Tribunal assistant
Third-party funder
Country
Print reporter
Document Summary
Decision on Annulment (English)
Decision on Annulment (Spanish)
This summary note is machine-generated. Always consult the original materials.

Procedural Posture

This document is a Decision on Annulment issued by an ICSID ad hoc Committee regarding an application for partial annulment filed by the Republic of Peru. Peru sought to annul portions of the Award rendered on October 3, 2023, in favor of Claimants IC Power Ltd. and Kenon Holdings Ltd., specifically challenging the Tribunal's finding that Peru breached the Minimum Standard of Treatment (MST) under Article 10.5 of the Singapore-Peru Free Trade Agreement (FTA) by issuing Resolution No. 141.

Principal Legal and Procedural Issues

Peru sought annulment under three grounds pursuant to ICSID Convention Article 52(1): (b) manifest excess of powers, (e) failure to state reasons, and (d) serious departure from a fundamental rule of procedure. Peru argued that the Tribunal failed to apply customary international law (CIL) by relying on arbitral jurisprudence rather than independently analyzing State practice and opinio juris to determine that "seriously arbitrary" conduct violates the MST. Peru further contended the Tribunal failed to state reasons for equating "egregious" conduct with "serious" conduct. Procedurally, Peru alleged a violation of its right to be heard and equality of arms due to the Tribunal's exclusion of belatedly submitted expert evidence (the Tabors Report and PSR Analysis) and its sua sponte reliance on Peru's pleadings from unrelated arbitrations without affording an opportunity to comment.

Committee's Analysis and Findings

The Committee systematically rejected all three grounds for annulment. Regarding the manifest excess of powers, the Committee held that the Tribunal correctly identified CIL as the applicable law. It found that the Tribunal's reliance on prior arbitral awards as subsidiary means to identify the content of CIL was methodologically sound and aligned with international judicial practice, including the International Law Commission's guidelines. The Committee emphasized that assessing the evidentiary value of those awards fell outside its annulment mandate.

On the failure to state reasons, the Committee applied the established MINE standard, concluding that the Tribunal's reasoning could be easily followed from Point A to Point B. The Committee noted that the Tribunal's use of the terms "serious" and "egregious" was merely terminological and reflected the same substantive threshold, thus requiring no further justification.

Addressing the procedural challenges, the Committee affirmed the Tribunal's broad discretion over the admissibility of evidence. It ruled that excluding late-filed expert reports did not violate fundamental procedural rules, as Peru had been afforded ample opportunity to present its case within the established procedural calendar. While the Committee noted that the Tribunal's reliance on Peru's external pleadings lacked "procedural courtesy," it concluded this reference was incidental and not outcome-determinative, thereby failing to constitute a serious departure from a fundamental rule of procedure.

Decision and Operative Directions

The Committee dismissed the Application for Annulment in its entirety. Exercising its discretion on costs, the Committee ordered Peru to bear all costs of the annulment proceeding, including the fees and expenses of the Committee and ICSID. Furthermore, finding that the annulment request was not frivolous but ultimately unsuccessful, the Committee ordered Peru to reimburse 50% of the Claimants' costs of legal representation.