International Arbitration & Investor-State Disputes

We represent States, investors and corporations in international arbitration, including treaty-based disputes, in complex and politically sensitive cross-border environments.

Navigating complex treaty-based disputes

We represent States, public entities, investors and multinational corporations in international commercial and treaty-based arbitrations under all major institutional and ad hoc rules.

Our experience spans energy, infrastructure, concessions, telecommunications and public procurement, often in politically sensitive environments.

We are particularly recognised for our work in annulment proceedings, enforcement strategy and sovereign immunity issues.

Our arbitration practice is fully integrated with litigation and enforcement capabilities, allowing us to manage disputes holistically — from the drafting of dispute resolution clauses through to the enforcement or resistance of arbitral awards.

Representing States and investors in treaty-based arbitrations involving expropriation, regulatory interference and fair and equitable treatment claims. Extensive experience under ICSID, UNCITRAL and bilateral investment treaties, with strong enforcement capabilities in France and Europe.

Acting in disputes arising from corporate transactions, franchise and distribution agreements, misrepresentation, earn-outs and valuation clauses. Combining transactional insight with arbitration and litigation expertise.

Handling disputes in oil and gas, renewable energy and strategic infrastructure projects. Matters include PPAs, pricing mechanisms, performance failures, delay claims and cross-border enforcement of awards.

Advising States, concessionaires and sponsors in disputes involving termination, regulatory change and contract rebalancing in complex PPP projects. Skilled in managing political risk and public interest constraints.

Defending States against enforcement actions targeting sovereign property. Advising on immunity, protected asset classifications and resistance to enforcement involving diplomatic and public-purpose assets.

Coordinating annulment, enforcement and parallel litigation across jurisdictions. Aligning arbitration strategy with litigation involving sovereign immunity, public international law and corruption-related allegations.

Representing States and public entities in annulment proceedings before national courts, particularly before the Paris Court of Appeals, involving violations of international public policy and corruption-related issues.

Representative matters

ICC Arbitration Concerning International Art Exhibition (€120M)

Represented a Middle Eastern Ministry of Culture in an ICC arbitration concerning the cancellation of an international art exhibition and related financial claims.

ICC Arbitration in Multi-jurisdictional Telecom Dispute

Represented a West African telecom operator in arbitration against a Russian software provider involving contractual reassignment issues governed by French law across the UAE, West Africa and Europe.

Treaty-based Arbitration Involving Infrastructure and Energy Concessions

Advised a sovereign entity in arbitration concerning the alleged unlawful termination and renegotiation of major concession agreements involving claims of expropriation and breaches of public international law.

Investor–state Arbitration Concerning Suspension of Energy Concession

Represented a foreign State in treaty-based arbitration arising from the suspension of a long-term concession contract in the energy sector in a politically sensitive environment.

Defence of Arbitral Award in Annulment Proceedings Before The Paris Courts

Represented a State in annulment proceedings before the Paris Court of Appeals. The award was upheld, confirming its enforceability in a cross-border context.

Parallel Annulment and Enforcement Proceedings – Europe & Latin America

Advised a public entity in coordinated proceedings before the Paris Court of Appeals involving arbitral awards challenged on grounds of corruption and public procurement fraud.

Our Strategic Edge

• Dual expertise in arbitration and cross-border litigation involving States, public entities and global investors.
• Ability to align sovereign immunity, treaty protections and enforcement strategies across jurisdictions.
• Extensive experience in politically exposed disputes involving expropriation, corruption and public procurement.
• Proven ability to manage complex multi-forum proceedings requiring legal and geopolitical coordination.
• Trusted by both States and private parties in matters requiring discretion, legal agility and institutional fluency.