Mathieu Oppermann is an Associate at Wordstone, specializing both in commercial and in investor-State arbitration. Mathieu has acted in proceedings involving States, State entities and private companies across various sectors, including mining, energy, healthcare and construction.

Prior to joining Wordstone, Mathieu worked as a law clerk and intern in the international arbitration departments of global law firms in Paris.

• Representing  the subsidiary of a Turkish power group against a Panamanian company in an ICC arbitration concerning a terminated consulting agreement.
• Representing a US health care system against the Republic of Malta in an ICC arbitration concerning the termination of a hospital licensing agreement.
• Representing a Spanish construction group against a Saudi Arabian contractor in an ICC arbitration concerning a delayed construction project in the energy sector.
• Representing the Republic of Colombia against the UK subsidiary of an Australian mining group in an ICSID arbitration concerning a ferronickel mining royalty dispute.

Columbia Law School, LL.M., 2023

Sciences Po Law School, Master in Economic Law (specialization in Global Governance Studies), 2022

The University of British Columbia, Bachelor of Arts in International Relations and Human Geography, 2019

Sciences Po Paris, Bachelor of Arts in Political Science, 2019

New York

French, German, English, Spanish (professional proficiency)