Bacilio Amorrortu (USA) v. The Republic of Peru

The Permanent Court of Arbitration provides administrative support in this arbitration, which is being conducted under the UNCITRAL Arbitration Rules 2013.

Case information

Name(s) of Claimant(s) Mr. Bacilio Amorrortu (Private entity )
Name(s) of Respondent(s) The Republic of Peru (State)
Names of Parties -
Case number 2023-22
Administering institution Permanent Court of Arbitration (PCA)
Case status Pending
Type of case Investment arbitration
Subject matter or economic sector Oil and gas
Procedural rules UNCITRAL Arbitration Rules 2013
Treaty or contract under which proceedings were commenced

Bilateral treaty
United States – Peru Trade Promotion Agreement, entered into force on 1 February 2009
Country A: United States
Country B: Peru

Language of Proceeding English
Seat of Arbitration (by Country) United States
Arbitrator(s), Conciliator(s), Other Neutral(s)

Hon. Justice Mr. David Unterhalter (Presiding Arbitrator)

Professor Bryan Schwartz

Mr. Hugo Perezcano Díaz

Representatives of the Claimant(s)

Francisco A. Rodriguez

Gilberto A. Guerrero-Rocca

Rebeca E. Mosquera

Sandra J. Millor

Ana R. Ulseth

Reed Smith LLP

Representatives of the Respondent(s)

Vanessa Rivas Plata Saldarriaga

Jhans Armando Panihuara Aragón

Ministerio de Economía y Finanzas


Kenneth Juan Figueroa

Derek C. Smith

Ofilio J. Mayorga

Eva Paloma Treves

Karim M’ziani

Foley Hoag LLP


Ricardo Puccio Sala

Estudio Navarro & Pazos Abogados

Representatives of the Parties
Number of Arbitrators in case 3
Date of commencement of proceeding 22 August 2022
Date of issue of final award -
Length of Proceedings Pending
Additional notes

This arbitration is being conducted in accordance with the UNCITRAL Rules on Transparency in Treaty-Based Investor-State Arbitration, as adopted by UNCITRAL on July 11, 2013, in accordance with Article 1(2)(a) thereof, with the PCA assuming the role of the repository foreseen under these Rules with respect to this arbitration.


Notice of Arbitration
Notice of Arbitration
Written submission
Response to Notice of Arbitration
Statement of Claim
Procedural Documents
Procedural Order No. 1
Terms of Appointment
Procedural Order No. 2 (Decision on Bifurcation)
20240418 - Procedural Order No. 3 (Updated Procedural Calendar)
Letter from Respondent to PCA