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Claire Pauly advises and represents companies before international arbitral tribunals, including the International Chamber of Commerce (ICC), International Centre for Settlement of Investment Disputes (ICSID), London Court of International Arbitration (LCIA), Belgian Centre for Arbitration and Mediation (CEPANI), and ad hoc rules under the United Nations Commission on International Trade Law (UNCITRAL). She works with clients across various industries, particularly those in the energy, retail, real estate, and pharmaceuticals sectors. She also represents clients in annulment, enforcement, and arbitration-related proceedings before French courts.

Claire is currently advising major oil & gas companies in complex contractual issues, including an Italian-law governed EPC (engineering, procurement, and construction) contract and English-law governed LNG ( liquefied natural gas) purchase agreements. Claire is also representing a major international beauty company in a post-acquisition dispute involving complex issues of law and damages. Claire is also currently involved in ICSID arbitration proceedings and ICC commercial proceedings in the MENA (Middle East and North Africa) region.

Claire has represented a Japanese investor in ICSID proceedings against Spain arising out of the overhaul of the legal framework applicable to the renewable energy sector, a Belgian company and its mother company in a complex dispute relating to the distribution of pharmaceutical products, and companies in gas pricing disputes relating to long-term agreements.

Claire has authored numerous publications in the field of arbitration. She teaches arbitration and litigation strategy at the University of Paris II-Panthéon Assas, Sciences Po Paris, the University of Paris Saclay, and the Centre for Mediation and Arbitration of Paris (CMAP).


  • Middle eastern company defends against complex multi-party arbitration proceedingsJones Day represents a middle-eastern engineering company in an ICC arbitration commenced by a middle eastern contractor against the client, an Algerian joint venture in a dispute relating to an agreement for the construction of a security base, a security camp and guardhouse in the Algerian Sahara.
  • State-owned company involved in post M&A arbitration proceedings relating to environmental reps and warrantiesJones Day has successfully represented a French state-owned company in an arbitration that was commenced by another company in ICC arbitration proceedings arising out of claims concerning certain environmental guarantees and indemnities that were granted under a Contribution Agreement concluded with respect to a joint venture.
  • Mass retail group defends against claims in complex ad hoc international arbitration proceedingsJones Day represents a Belgian mass retail group against another group in the same sector in complex ad hoc international arbitration proceedings, the value of which was near €1 billion.
  • Spanish industrial company defends against annulment proceedings before Paris Court of AppealJones Day represented a Spanish industrial company in annulment proceedings brought by a Latin American Government against an UNCITRAL but ICC administered award on jurisdiction issued by a Paris-seated arbitral tribunal and successfully dismissed all of the State's arguments.
  • Major middle-eastern construction company successfully settles construction dispute related to significant refinery project in Saudi ArabiaJones Day has advised and successfully settled on behalf of a major middle-eastern construction company a significant dispute against the main contractor for prolongation costs, disruption, and other claims arising out of the performance of subcontracting work on a significant refinery project in Saudi Arabia.