Adell, Stephan

Stephan Adell


Stephan Adell is a partner in our International Dispute Resolution Practice Group, focusing on international arbitration. He has extensive experience acting as counsel in international commercial and investment arbitrations under the major arbitration rules (e.g. ICC, LCIA, CRC, ICDR, UNCITRAL and ICSID), and also acts as arbitrator. He is a member of the ICC International Court of Arbitration.

Stephan is recognized in Who's Who Legal: Arbitration - Future Leaders 2017.

He is qualified in both Paris and the Dominican Republic, and conducts arbitrations in English, Spanish and French. Prior to joining Squire Patton Boggs, Stephan worked at a top tier Paris-based boutique specializing in international arbitration.

He is currently involved in disputes in the oil and gas sector – in particular, price re-openers of long-term natural gas supply contracts, as well as disputes related to upstream projects. He is also part of the team representing a European State in multiple arbitrations arising from a share purchase agreement in an oil and gas company.

Stephan’s investment arbitration experience includes successfully acting for the Republic of Turkey in the US$19 billion Saba Fakes ICSID Case No. ARB/07/20, which led to an award dismissing jurisdiction and granting legal costs to his client. Stephan also successfully acted in the annulment proceedings in Joseph C. Lemire v. Ukraine, ICSID Case No. ARB/06/18, and obtained a favorable decision dismissing the annulment application in its entirety.

Stephan’s experience in commercial international arbitration includes successfully representing a European scientific entity defending a claim for cost overruns and time extensions in a construction project and obtaining an award dismissing all claims and granting legal costs.

Stephan successfully defended a group of Eastern European companies with investment in gold mines in Asia, obtaining a full dismissal of the opposing party’s claims and an award on legal costs. He also successfully led a team in an arbitration against a European supplier for deficiencies in the design, supply and supervision of an MDF plant in the Middle East, obtaining an award granting damages to his client.

Stephan commented and reviewed the draft Commercial Arbitration Law of the Dominican Republic, which came into force on 30 December 2008, and participated extensively in the redrafting and updating of the Arbitration Rules for the Santo Domingo Chamber of Commerce, in force as of 21 July 2011.



  • Universit√© de Versailles, Masters in Arbitration and International Commerce, 2007
  • Institut du Droit Compar√©, Diploma in Comparative Law, 2007
  • Pontificia Univer. Catolica Madre y Maestra, Law Degree, 2005


  • Paris, 2010
  • Dominican Republic, 2008

Memberships and Affiliations

  • Member of the ICC International Court of Arbitration
  • Member of the ICC Commission on Arbitration and ADR
  • Board of Reporters of the Institute for Transnational Arbitration, reporting for the Dominican Republic
  • Club Español del Arbitraje, Member of the French Executive Committee
  • Comité Français de l’Arbitrage
  • Asociación Latinoamericana de Arbitraje (ALARB), Member of the Commercial Arbitration Committee


  • English
  • Spanish
  • French


  • Co-author, “Cooling-off periods in investment arbitration”, in “Oxy Case: The Defense of a Sovereign and Legal Decision of the Ecuadorian State,” Procuraduría General of Ecuador, 2014.
  • Co-author, “Los Nuevos Principios de Lealtad, Celeridad y Confidencialidad del Código de Procedimiento Civil Francés,” Spain Arbitration Review No. 11/2011, 2011.
  • Author, “France – Enforcement of Money Judgments,” Enforcement of Money Judgments, Juris Publishing, 2010.
  • Co-author, Commentary on the French case SNF vs. Cytec, Spain Arbitration Review No. 6/2009, 2009.
  • Author, “La Nouvelle loi Dominicaine sur L’arbitrage Commercial du 19 Décembre 2008,” Revue de l’Arbitrage, October 2009.
  • Author, “L’exequatur d’une Sentence Arbitrale Attaquée au lieu du Siège de L’arbitrage, Dont le Droit est Soumis au Traité OHADA,” Petites Affiches, October 2008.

Speaking Engagements

  • Lecturer, Madrid International Arbitration Summer Course, Carlos III University, jointly organized by ICC, Madrid, Spain, 19 July 2016.
  • Panelist, “Back to the Future: Tecnología y Arbitraje,” ICC YAF Conference, San Jose, Costa Rica, 14 February 2016.
  • Panelist, “Problems and Practical Cases in Relation to Arbitration Clauses,” III Judicial Dimension of Arbitration Conference, Santo Domingo, Dominican Republic, 29 October 2015.
  • Lecturer, Diploma on International Arbitration, organized by Universidad Privada Boliviana and Bolivia’s General Attorney’s Office, La Paz, Bolivia, 23-24 October 2015.
  • Panelist, “Differences Between Lost Profits and Loss of Chance,” 1st International Forum of ICC Arbitration, Santo Domingo, 23 April 2015.
  • Panelist, “Arbitration and Company Law,” ICC YAF Conference, Managua, Nicaragua, 26 November 2014.
  • Panelist, “The Assessment of Damages in Investment Arbitration,” ICC Conferencia de Arbitraje Internacional, Santa Cruz, Bolivia, 12 August 2014.
  • Panelist, “Contractualization of National Rights,” CLA/ICC VI Conferencia Latinoamericana de Arbitraje, Punta Cana, Dominican Republic, 29-30 May 2014.
  • Seminar, “Organization of Arbitral Proceedings,” OMG Institute, Santo Domingo, Dominican Republic, 12-13 February and 4-5 April 2014.
  • Panelist, “Precedents: Benefits, Dangers and Myths,” ICC YAF Conference, Miami, Florida, 2 November 2013.
  • Panelist, “Advocacy in International Arbitration,” Encontros Internacionais de Arbitragem de Coimbra, Coimbra, Portugal, 24 October 2013.
  • Panelist, on Investment Arbitration, seminar, OMG Institute, Santo Domingo, Dominican Republic, 16 July 2013.
  • Panelist, “The Next Wave of Investor-State Claims: Arbitration Under Concession Agreements, Special Regulatory Regimes and Different Institutional Rules,” International Business Transactions Conference of the Florida Bar, Miami, Florida, 1 March 2013.
  • Panelist, on Damages in Investment Arbitration, ICC Young Arbitrators Forum Conference on the Omnipresence of Damages in International Arbitration, Paris, France, 12 July 2012.
  • Panelist, on Investment Arbitration, Generations in Arbitration Conference, Hong Kong, China, 19 March 2012.
  • Courses, on Commercial Arbitration for Trainee Judges, Escuela Nacional de la Judicatura, Santo Domingo, Dominican Republic, 6 and 13 October 2010.
  • Speaker, “Arbitration in Energy Sector,” Jornada de Arbitraje Nacional e Internacional en el Sector Energético, Madrid, Spain, 24 May 2010.