A. & O. Shearman

Participant Type: 

Law Firm

Based on the existing information, A. & O. Shearman has been involved in 23 investor-State disputes and 1 commercial arbitration involving a State.

Claimant's Law Firm 6 cases in this role

• 9REN Holding S.a.r.l v. Kingdom of Spain, ICSID Case No. ARB/15/15 View case details
  3 source documents

  • 9REN Holding S.a.r.l v. Kingdom of Spain, Judgment from the Federal Court of Australia
  • NextEra Energy Global Holdings B.V. and NextEra Energy Spain Holdings B.V. v. Kingdom of Spain, Judgment of the Federal Court of Australia relating to the Terms of Final Relief
  • italaw180978 - 9REN v. Spain, Supplemental Brief of Respondents NextEra and 9REN, June 9, 2026.pdf
• ArcelorMittal S.A. v. Italian Republic, ICSID Case No. ARB/25/34 View case details
  1 source document

  • ArcelorMittal S.A. v. Italian Republic, Registration of the Request for Arbitration
• NextEra Energy Global Holdings B.V. and NextEra Energy Spain Holdings B.V. v. Kingdom of Spain, ICSID Case No. ARB/14/11 View case details
  5 source documents

  • NextEra Energy Global Holdings B.V. and NextEra Energy Spain Holdings B.V. v. Kingdom of Spain, Judgment of the Federal Court of Australia relating to the Terms of Final Relief
  • NextEra Energy Global Holdings B.V. and NextEra Energy Spain Holdings B.V. v. Kingdom of Spain,Judgment from the Federal Court of Australia
  • NextEra Energy v. Spain, Brief of NextEra and Others, Aug 14, 2025
  • NextEra Energy v. Spain, Supplemental Brief of NextEra and Others, Sep 12, 2025
  • italaw180977 - NextEra v. Spain, Supplemental Brief of Respondents NextEra and 9REN, June 9, 2026.pdf
• RREEF Infrastructure (G.P.) Limited and RREEF Pan-European Infrastructure Two Lux S.à r.l. v. Kingdom of Spain, ICSID Case No. ARB/13/30 View case details
  2 source documents

  • RREEF Infrastructure (G.P.) Limited and RREEF Pan-European Infrastructure Two Lux S.à r.l. v. Kingdom of Spain, Judgment of the Federal Court of Australia relating to the Terms of Final Relief
  • RREEF Infrastructure (G.P.) Limited and RREEF Pan-European Infrastructure Two Lux S.à r.l. v. Kingdom of Spain, Order of the US Court of Appeals for the District of Columbia
• Sevilla Beheer B.V. and others v. Kingdom of Spain, ICSID Case No. ARB/16/27 View case details
  2 source documents

  • Sevilla Beheer and others v. Spain, Decision on Annulment, June 11, 2025
  • Sevilla Beheer and others v. Spain, Petition to Enforce Arbitral Award and Annulment Costs, May 20, 2026
•  Watkins Holdings S.à r.l. and others v. Kingdom of Spain, ICSID Case No. ARB/15/44 View case details
  2 source documents

  • Watkins Holdings S.à r.l. and others v. Kingdom of Spain, Order of the US Court of Appeals for the District of Columbia
  • Watkins Holdings S.à r.l. and others v. Kingdom of Spain, Judgment of the Federal Court of Australia relating to the Terms of Final Relief

Respondent's Law Firm 4 cases in this role

• Hasenberg AG v. Republic of Lithuania, PCA Case No. 2025-16 View case details
  1 source document

  • Hasenberg AG v. Republic of Lithuania, Notice of Intent
• Mimoza Ndroqi v. Republic of Albania, PCA Case No. 2023-64 View case details
  1 source document

  • Mimoza Ndroqi v. Republic of Albania, Commencement of Proceeding
• Omega Engineering LLC and Oscar Rivera v. Republic of Panama, ICSID Case No. ARB/16/42 View case details
  1 source document

  • Omega Engineering LLC and Oscar Rivera v. Republic of Panama, Petitioner's Motion to Stay Discovery
• The Renco Group, Inc. v. Republic of Peru [II], PCA Case No. 2019-46 View case details
  13 source documents

  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 4)
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 7)
  • The Renco Group, Inc. v. Republic of Peru [II], Claimant's Post-Hearing Brief
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 1) (
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 2)
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 3)
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 5)
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 6)
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 8)
  • The Renco Group, Inc. v. Republic of Peru [II], Hearing on Jurisdiction and Liability (Day 9)
  • The Renco Group, Inc. v. Republic of Peru [II], Orden Procesal No. 12
  • The Renco Group, Inc. v. Republic of Peru [II], Procedural Order No. 13
  • The Renco Group, Inc. v. Republic of Peru [II], Respondent’s Post-Hearing Brief

Law Firm (side unconfirmed) 14 cases in this role

• BM Mühendislik ve İnşaat A.Ş. v. United Arab Emirates, ICSID Case No. ARB/17/20 View case detailsCase-profile record
• Canepa Green Energy Opportunities I, S.á r.l. and Canepa Green Energy Opportunities II, S.á r.l. v. Kingdom of Spain, ICSID Case No. ARB/19/4 View case detailsCase-profile record
• Chevron Bangladesh Block Twelve, Ltd. and Chevron Bangladesh Blocks Thirteen and Fourteen, Ltd. v. People’s Republic of Bangladesh and Bangladesh Oil Gas and Mineral Corporation, ICSID Case No. ARB/24/39 View case detailsCase-profile record
• Corral Morocco Holdings AB v. Kingdom of Morocco, ICSID Case No. ARB/18/7 View case detailsCase-profile record
• Eiser Infrastructure Limited and Energía Solar Luxembourg S.à r.l. v. Kingdom of Spain, ICSID Case No. ARB/13/36 View case detailsCase-profile record
• Emergofin B.V. and Velbay Holdings Ltd. v. Ukraine, ICSID Case No. ARB/16/35 View case details
  1 source document

  • Emergofin and Velbay v. Ukraine, Award, May 1, 2026
• Fengzhen Min v. Republic of Korea, ICSID Case No. ARB/20/26 View case detailsCase-profile record
• Groupe Pizzorno Environnement v. Kingdom of Morocco, ICSID Case No. ARB/23/34 View case detailsCase-profile record
• Huawei Technologies Co., Ltd. v. Kingdom of Sweden, ICSID Case No. ARB/22/2 View case detailsCase-profile record
• Infracapital F1 S.à r.l. and Infracapital Solar B.V. v. Kingdom of Spain, ICSID Case No. ARB/16/18 View case detailsCase-profile record
• Mikhail Fridman v. Luxembourg (UNCITRAL) View case detailsCase-profile record
• Naftiran Intertrade Co. (NICO) Limited v. Kingdom of Bahrain, ICSID Case No. ARB/22/34 View case details
  1 source document

  • Naftiran v. Bahrain, Decision on Preliminary Objections, June 15, 2026
• Qiong Ye and Jianping Yang v. Kingdom of Cambodia, ICSID Case No. ARB/21/42 View case detailsCase-profile record
• Renco Group Inc. & Doe Run Resources Corp. v. Activos Mineros S.A.C., PCA Case No. 2019-47 View case detailsCase-profile record