Pierre Mayer
Arbitrators, counsel and experts
Pierre Mayer
Arbitrator, judge or committee member (published cases) · 15Counsel (published cases) · 5
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Record as arbitrator
Outcome for the appointing side: claimant prevailed in 33% of the 3 claimant appointments; respondent prevailed in 67% of the 3 respondent appointments. Published decisions with a clear outcome; mixed outcomes count as half.
Appointed by (party)
- Mexico 1 · 1 in 3 yrs
- Romania 1
- Bulgaria 1
- Senegal 1
- Guinea 1
- Jan de Nul N.V. 1
- Dredging International N.V. 1
- Cengiz İnşaat Sanayi ve Ticaret A.Ş. 1
Appointed by clients of
Sat most often with
Also appeared as counsel with
- Dechert LLP 2015–2023
- — 2021
Issues decided most often
Energy Charter Treaty 2Achmea 1intra-EU objection 1Article 16 ECT 1Article 26(6) ECT 1Komstroy 1renewable energy 1photovoltaic 1feed-in tariff 1Article 30 VCLT 1Article 58 VCLT 1European Commission amicus 1EU State aid 1denial of benefits 1enforcement 1FSIA arbitration exception 1NextEra 1forum non conveniens 1
Published cases (20)
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2026
Bacanora Lithium Limited, Sonora Lithium Ltd., and Ganfeng International Trading (Shanghai) Co. Ltd. v. United Mexican States
Co-arbitrator — appointed by the respondent · award p. 4
Tribunal: Eduardo Zuleta, Donald Francis Donovan, Joseph E. Neuhaus
-
2026
Buried Hill Serdar Limited v. Turkmenistan
Co-arbitrator (replaced Philippe Sands; Tribunal reconstituted on 2 April 2026) · award p. 4
Tribunal: Eduardo Siqueiros T., Michael S. Goldberg, Philippe Sands
-
2025
ACF Renewable Energy v. Bulgaria
Co-arbitrator — appointed by the respondent · award p. 11
Tribunal: Bruno Simma, Oscar M. Garibaldi, Dabney L. Friedrich
-
2025
Mason Capital L.P. and Mason Management LLC v. Republic of Korea
Co-arbitrator · award p. 1
Tribunal: Klaus Sachs, Elizabeth Gloster
-
2025
Cengiz İnşaat Sanayi ve Ticaret A.S v. Libya
Co-arbitrator — appointed by the claimant (confirmed by the ICC Court upon nomination by Claimant) · award p. 1
Tribunal: Juan Fernández-Armesto, Georges Khairallah
-
2023
Perenco Ecuador Ltd. v. The Republic of Ecuador and Empresa Estatal Petróleos del Ecuador (Petroecuador)
Counsel for the respondent (Dechert LLP) · award p. 2
Tribunal: Lord Bingham of Cornhill, Charles N. Brower, J. Christopher Thomas, Peter Tomka
-
2022
BSG Resources Limited v. Republic of Guinea
Co-arbitrator — appointed by the respondent · award p. 4
Tribunal: Gabrielle Kaufmann-Kohler, Albert Jan van den Berg
-
2022
Alverley Investments Limited and Germen Properties Ltd v. Romania
Co-arbitrator — appointed by the respondent · award p. 1
Tribunal: Christopher Greenwood, Bernard Hanotiau
-
2022
Mason Capital L.P. (U.S.A.) 2. Mason Management LLC (U.S.A.) v. Republic of Korea
Co-arbitrator · award p. 1
Tribunal: Klaus Sachs, Elizabeth Gloster
-
2021
Glencore International A.G. and C.I. Prodeco S.A. v. Republic of Colombia
Counsel for the respondent · award p. 2
Tribunal: Juan Fernández-Armesto, Oscar M. Garibaldi, J. Christopher Thomas, Christopher Greenwood
-
2021
Hope Services LLC v. Republic of Cameroon
Co-arbitrator — appointed by the respondent (Proposed for disqualification by the claimant on 7 July 2020; challenge rejected by the non-challenged members on 21 August 2020) · award p. 5
Tribunal: Maxi Scherer, Nassib G. Ziadé, Frédéric Joachim
- 2019
-
2019
Kontinental Conseil Ingénierie v. Gabonese Republic
President · award p. 2
Tribunal: Nassib G. Ziadé, Mathias Audit, Dominique Guihal
-
2018
Dan Cake S.A. v. Hungary
President — appointed by the parties jointly · award p. 1
Tribunal: Jan Paulsson, Toby Landau, Stephan W. Schill
-
2018
Quiborax S.A., Non Metallic Minerals S.A. and Allan Fosk Kaplún v. Plurinational State of Bolivia
Counsel for the respondent (Dechert LLP) · award p. 2
Tribunal: Gabrielle Kaufmann-Kohler, Marc Lalonde, Brigitte Stern, Andrés Rigo Sureda
-
2017
Burlington Resources Inc. v. Republic of Ecuador (formerly Burlington Resources Inc. and others v. Republic of Ecuador and Empresa Estatal Petróleos del Ecuador (PetroEcuador))
Counsel for the respondent (Dechert LLP) · award p. 1
Tribunal: Gabrielle Kaufmann-Kohler, Brigitte Stern, Francisco Orrego Vicuña, Stephen L. Drymer
-
2016
Menzies Middle East and Africa S.A. and Aviation Handling Services International Ltd. v. Republic of Senegal
Co-arbitrator — appointed by the respondent · award p. 1
Tribunal: Bernard Hanotiau, Hamid G. Gharavi
-
2015
Occidental Petroleum Corporation and Occidental Exploration and Production Company v. The Republic of Ecuador
Counsel for the respondent (Dechert LLP) · award p. 1
Tribunal: L. Yves Fortier, Brigitte Stern, David A. R. Williams, Juan Fernández-Armesto
-
2014
Société Industrielle des Boissons de Guinée v. Republic of Guinea
President — appointed by the parties jointly · award p. 1
Tribunal: Jean-Michel Jacquet, Alexis Mourre
-
2008
Jan de Nul N.V. and Dredging International N.V. v. Arab Republic of Egypt
Co-arbitrator — appointed by the claimant · award p. 1 · award p. 1
Tribunal: Gabrielle Kaufmann-Kohler, Brigitte Stern, Gabrielle Kaufmann-Kohler, Brigitte Stern
Compiled with AI from the published awards and decisions in the Forum’s database; it covers public cases only and may contain matching errors. Each entry links to the page it was read from where available. Corrections: info@arbitration.org.