Constance Castres Saint-Martin is a member of the Paris Bar and holds a Ph.D. in Law and an LL.M. in International Business Law. She joined Teynier Pic as an associate in March 2022. She is experienced in international arbitration before various arbitral institutions (ICC, ICSID, DIAC). She acts in a wide range of sectors, such as commodities, renewable energy and international trade. She is also in charge of disputes relating to the recognition, enforcement and setting aside of arbitral awards. As an expert in ICC arbitration, she provides on a daily basis strategic and financial advice in ICC arbitration cases.

Constance started her career in 2015 as an associate of an Avocat aux Conseils, a special class of qualified lawyers entitled to plead before the Supreme Courts of the French judicial and administrative systems. Then, she joined the ICC as a Deputy Counsel at the Secretariat of the International Court of Arbitration where she supervised around one hundred arbitrations with a particular focus on Africa. Constance is also a member of the Arbitrator Selection Committee of the Mauritius International Arbitration Centre and is on the list of arbitrators of the Paris Mediation and Arbitration Centre.

  • Paris (2014)
  • Representing a Turkish investor against the State of Libya in recognition and enforcement proceedings in Turkey and Libya of an arbitral award issued in an arbitration related to the termination of two large-scale infrastructure projects in Libya and, more generally, losses caused by the Arab Spring, in breach of the Bilateral Investment Treaty between the Republic of Turkey and Libya.
  • Representing a Lebanese businessman in the negotiation and drafting of a Settlement Agreement relating to the enforcement of an ICC award issued without his participation.
  • Representing a Lebanese franchisor against two Qatari franchisees in a DIAC arbitration concerning the performance and termination of a franchise agreement, the non-payment of royalties and the application of a non-compete clause.
  • Representing a Central African State in two ICSID and two ICC arbitrations against four Anglo-Saxon mining companies, concerning the revocation of a licence for an Iron Ore Project in the Democratic Republic of Congo.
  • Representing a Lebanese company against an American hotel Group in the request for revision of two ICC awards deciding on the termination of a management contract related to the opening of a hotel complex in Lebanon.
  • Representing a French company specialised in the cereal and flour processing against Belgian contractors relating to the malfunction of a hot air generator in an industrial mill in France.
  • Representing an Indian company against French insurance company and insurance broker, in a commercial dispute relating to the insurance on the delivery of thousands of cocoa beans bags from the Ivory Coast to India.
  • French
  • English
  • Doctorate in Law (Ph.D.) University of Paris II Panthéon Assas (France) – 2015 – Very honourable
  • LL.M. International Business Law University of Paris II Panthéon Assas (France) / Sorbonne Assas International Law School Asia (Singapore) – 2012 – With honours / Cum Laude 2nd out of 21 students
  • Master’s in Contract Law University of Paris XI (France) – 2012
  • Master’s in Law with a major in Private Law University of Paris II Panthéon Assas (France) – 2011 – With honours
  • Bachelor of Laws University of Paris II Panthéon Assas (France) – 2009
  • The Virtues of Language in Arbitration“, ICC Bulletin, 2023, co-authored with Y. Alaoui
  • Private justice and conflict of interests“, Journal of Sciences Po, 2021
  • Conflicts of interests in International Commercial Arbitration“, Thesis, L’Harmattan, 2016
  • Arb-Med-Arb service in Singapore International Mediation Centre“, in Asian Journal of Mediation, 2015
  • Moderation of a panel on “The Role of Arbitral Institutions” at the Mauritius International Arbitration Centre in Saint Louis, Mauritius, 2022
  • Annual 6-hour seminar on “ICC Arbitration” at the University Jean Monnet Paris XI, Master of Contract Law, since 2021
  • Speaker at the ICC e-PIDA, Paris, 2021
  • Weekly courses in Corporate Law and Dispute Resolution at Sciences Po Paris, Master in Economic Law, 2019-2021
  • Moderation of a panel on “Harmonisation of International Arbitration” at the Paris Arbitration Week, 2020
  • Speaker at the Wake Up with Arbitration Debate on “The arbitrator professor, a professional arbitrator?” with Pr. Mathias Audit, Paris, 2020
  • Speaker at the annual Option Finance Conference, Paris, 2020
  • Annual 3-hour seminar on “The Practice of ICC Arbitration” at Sciences Po Paris, LL.M. in Transnational Arbitration & Dispute Settlement, 2018-2019
  • Speaker at the Geneva Centre for Settlement of International Disputes on “The role of arbitral institutions in the appointment of arbitrators”, Geneva, 2019
  • 3-day seminar for some 60 Togolese lawyers on “The introduction of an ICC arbitration”, organised by the International Union of Lawyers, Lomé, 2019
  • Speaker at the symposium on “ICC and Mining disputes”, Paris, 2018
  • Weekly courses in Comparative Law at the University of Paris Ouest Nanterre La Défense, Master in Comparative Law, 2017
  • Annual 15-hour seminar on “ICC Arbitration” at the University of Versailles Saint Quentin en Yvelines, Master’s in Arbitration & International Trade, 2017-2018
  • Weekly courses on the Introduction to Law at the University Panthéon-Assas Paris II, Bachelor of Laws, 2016
  • “The high level of research makes this book a reference” – Foreword written by Pr. Bertrand Ancel on the Ph.D.Thesis on “Conflicts of Interests in International Commercial Arbitration” published in 2016.
  • Member of the Executive Committee of a Moot Competition organised by Sciences Po Paris
  • Member of the Arbitrator Selection Committee of the Mauritius International Arbitration Centre
  • Member of the list of arbitrators of the Paris Mediation and Arbitration Centre


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