Dispute Resolution

Multilingual and dual-qualified, Alexis excels in large-scale multi-jurisdictional disputes.

Alexis is qualified in both England and France and has unparalleled experience working on investment treaty and energy arbitrations in English, Spanish and French.

Alexis’s recent energy arbitration successes involve the payment of hundreds of millions of US$ to clients in several pricing disputes under long-term natural gas and LNG contracts. His commercial arbitration practice encompasses complex energy, construction, mining and financial disputes.

Highlights of Alexis’ investment treaty arbitration experience involve the successful representation in multiple cases of Slovakia, Ecuador, the Czech Republic, Turkey, Uzbekistan and other states. He has also acted for claimants against states in 11 cases in Latin America, Africa, Asia and the Caribbean, all of which resulted in favourable multimillion awards or settlements.

He has extensive experience advising sovereigns and international companies on public international law issues, such as the extent and international impact of sovereign rights, international sanctions and the application of international treaties.

Alexis also regularly acts as arbitrator.

He has been recommended as a leader in his field for many years. He has been recognised every year since 2017 as a ‘Future Leader’ by Who’s Who Legal: Arbitration. Alexis has also been recommended for international arbitration by The Legal 500 every year since 2016.

In the 2023 edition of The Legal 500, Alexis is noted as being “appreciated for his open-minded and client-based approach, as well as his high-level coordination of all communication to the tribunal and opposing party throughout the arbitration process.” He is also described as “very easy to work with and absolutely committed to his clients. He is very thoughtful in sharing articles and legal updates, and has broad geographic experience and connections. His depth of knowledge about recent and relevant arbitration decisions is also very impressive.”

Member, Study Group on the Practice and Procedure of International Tribunals, International Law Association Member, LCIA, The London Court of International Arbitration Member, YAG, The Association Suisse d’Arbitrage Member, YAF, The International Chamber of Commerce Member, Young & International, ICDR Member, Club Español del Arbitraje Member, The Moot Alumni Association

2023 · European University Institute and Harvard Law School, Summer School on Law & Logic 2007 · Admitted as a Solicitor of England & Wales 2004 · Admitted as Avocat at the Paris Bar 2002 · Panthéon-Assas University, DEA, Droit des Relations Economiques Internationales 2001 · Panthéon-Assas University, Maitrise en Droit 2001 · University College London, Diploma, English Law, 2000 · Panthéon-Assas University, Licence en Droit