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International Arbitration Forum

Leading arbitrator Public record 23 published cases

Bruno Simma

Arbitrator in 23 published cases (presiding or sole arbitrator in 13) before PCA, ICSID tribunals, in railway transport, renewable energy: wind farms and concentrated solar power (csp) plants, environment; wildlife and habitat conservation disputes.

German PCA, ICSID railway transport, Renewable energy: wind farms and concentrated solar power (CSP) plants, Environment; wildlife and habitat conservation, Renewable energy; solar photovoltaics, Ports; real estate (Seaplane Harbor, Tallinn), rail transport

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Overview

In the published awards, Bruno Simma has been appointed by claimants 5 times and by respondents 1 times, and has presided or sat alone in 13 cases. Of the party appointments, 5 came from States and 1 from investors or companies.

Outcome for the appointing side, where the published decision is clear: claimant prevailed in 25% of the 2 claimant appointments. Mixed outcomes count as half.

Appointed most often by: Belgium (2), Azerbaijan (1), Malaysia (1), Ecuador (1), Limited Liability Company Lugzor (1).

23Published cases
13As chair or sole arbitrator
6Party appointments
0Dissents recorded

Track record

YearCaseRoleAppointed byInstitution / rulesSectorAward
2026 The Islamic Republic of Pakistan (- N/A -) v. The Republic of India (- N/A -) Co-arbitrator — PCA · The Hague Hydro-electric power; transboundary water resources Read award →
2026 William Ralph Clayton, William Richard Clayton, Douglas Clayton, Daniel Clayton and Bilcon of Delaware Inc. v. Government of Canada President — PCA · Toronto Mining (basalt quarry and marine terminal); environmental as Read award →
2026 Azerbaijan v. Armenia Co-arbitrator Claimant PCA · The Hague (hearing venue) Environment; wildlife and habitat conservation Read award →
2025 ACF Renewable Energy v. Bulgaria President Parties jointly ICSID · Washington, D.C. Renewable energy; solar photovoltaics Read award →
2025 ELA U.S.A., Inc. v. The Republic of Estonia President Co-arbitrators PCA · Geneva Ports; real estate (Seaplane Harbor, Tallinn) Read award →
2024 RENERGY S.à r.l. v. Kingdom of Spain President Parties jointly ICSID · Washington, D.C. Renewable energy: wind farms and concentrated solar power (C Read award →
2024 The Renco Group, Inc. v. Republic of Peru (Second Case) President Parties jointly PCA · Paris Metal smelting and refining; environmental regulation (La Or Read award →
2024 The Renco Group, Inc. v. The Republic of Peru | La República del Perú President Parties jointly PCA · Paris Mining; metal smelting and refining (La Oroya complex) Read award →
2024 The Renco Group, Inc., Doe Run Resources, Corp. v. Activos Mineros S.A.C. President — PCA · London Mining and metallurgy (La Oroya Metallurgical Complex); envi Read award →
2024 Rusoro Mining Ltd. v. Bolivarian Republic of Venezuela Co-arbitrator — ICSID Gold mining Read award →
2023 Limited Liability Company Lugzor and Others v. Russian Federation Co-arbitrator Claimant PCA Real estate (Crimea) Read award →
2021 DS Construction FZCO v. Libya (president of the arbitral tribunal whose partial award was annulled) President Co-arbitrators PCA · Paris — Documents →
2021 Silver Ridge Power BV v. Italian Republic President Parties jointly ICSID · Paris Renewable energy (solar photovoltaic) Read award →
2020 KS Invest GmbH and TLS Invest GmbH v. Kingdom of Spain President Parties jointly ICSID Renewable energy Read award →
2019 Jin Hae Seo v. Republic of Korea President Co-arbitrators — — Read award →
2017 Arbitration Between the Republic of Croatia and the Republic of Slovenia Co-arbitrator Parties jointly PCA · Peace Palace, The Hague territorial and maritime boundary Read award →
2016 Merck Sharpe & Dohme (I.A.) Corporation v. The Republic of Ecuador Co-arbitrator Respondent — — Read award →
2015 Ambiente Ufficio S.p.A. and others v. Argentine Republic, (formerly Giordano Alpi and others v. Argentine Republic) President Parties jointly — — Read award →
2014 Railway Land Arbitration (Malaysia/Singapore) (Replacement arbitrator appointed by Malaysia, 6 July 2012, replacing Gavan Griffith) Co-arbitrator Claimant PCA railway land development Read award →
2013 The Argentine Republic v. The Republic of Ghana President — PCA · The Hague maritime law enforcement Read award →
2005 Iron Rhine Arbitration (Belgium/Netherlands) Co-arbitrator Claimant PCA · The Hague railway transport Read award →
2003 the Kingdom of Belgium v. the Kingdom of the Netherlands, decision of 24 May 2005 Co-arbitrator Claimant PCA · The Hague railway transport Read award →
— Interpretation of the Award of the Arbitral Tribunal, decision of 20 September 2005 Co-arbitrator — — rail transport Read award →

Expertise

The legal issues and sectors decided most often in the published awards. Each links to the cases in the database.

fair and equitable treatment 5Energy Charter Treaty 4indirect expropriation 4renewable energy 3intra-EU objection 3Achmea 3legitimate expectations 3set-aside 3denial of justice 3Doe Run Peru 3La Oroya 3PAMA 3Komstroy 2umbrella clause 2DCF valuation 2bifurcation 2inter-State arbitration 2enforcement 2Paris Court of Appeal 2UNCITRAL Rules 1976 2national treatment 2causation 2Peru–United States Trade Promotion Agreement 2Article 10.18.1 2

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Compiled with AI from the published awards and decisions in the Forum’s database. It covers public cases only, counts each case once, and may contain matching errors; every row links to its source. Corrections: info@arbitration.org. All arbitrators →