ICSID Arbitration

Strategic Representation in ICSID Proceedings and Investment Treaty Disputes

The International Centre for Settlement of Investment Disputes (ICSID) is the leading institution for resolving investor-state disputes. Established under the ICSID Convention and administered by the World Bank Group, ICSID provides a specialised framework for disputes between foreign investors and sovereign states.

NZP NAGY LEGAL advises investors, companies, state entities and stakeholders in disputes arising from foreign investments, bilateral investment treaties (BITs), multilateral treaties and investment agreements. We assist clients throughout the lifecycle of an ICSID dispute, from the initial assessment of treaty protection and jurisdiction through to arbitration proceedings, annulment applications and enforcement strategy.

Drawing on experience in international arbitration and public international law, our team combines arbitration expertise with a practical understanding of treaty frameworks, sovereign conduct and complex cross-border commercial realities.

How We Help

• Assessment of protection under bilateral and multilateral investment treaties.
• Analysis of ICSID jurisdiction and admissibility requirements.
• Evaluation of investor nationality and qualifying investment status.
• Investment structuring and treaty-planning advice before disputes arise.
• Preparation of notices of dispute and requests for arbitration.
• Representation in ICSID Convention and ICSID Additional Facility proceedings.
• Coordination of damages, valuation and quantum experts.
• Jurisdictional, procedural and merits-phase advocacy.
• Advice regarding settlement negotiations and parallel proceedings.
• Representation in annulment proceedings.
• Strategic guidance concerning recognition and enforcement of arbitral awards.

Typical ICSID Disputes

ICSID proceedings frequently arise from:

• Expropriation and indirect expropriation.
• Breaches of fair and equitable treatment obligations.
• Discriminatory governmental measures.
• Regulatory interference affecting investments.
• Termination of licences, permits or concessions.
• Infrastructure and energy projects.
• Natural resource disputes.
• Privatisation-related disputes.
• State measures adversely affecting foreign investments.
• Treaty-based claims under bilateral and multilateral investment treaties.

Our Approach

Every ICSID dispute begins with a focused jurisdictional assessment. We analyse the applicable treaty, the investor’s nationality, the characteristics of the investment, procedural prerequisites and potential jurisdictional objections before significant resources are committed.

Where arbitration is appropriate, we develop an integrated strategy addressing treaty interpretation, evidentiary issues, damages, expert testimony and enforcement considerations from the outset of the matter.

Particular attention is given to disputes involving European investments, including the interaction between investment treaty obligations and European Union law, as well as the practical implications of post-Achmea developments for intra-EU investment disputes.

Why NZP NAGY LEGAL

ICSID proceedings require expertise in both international arbitration and public international law.

• Peter Taller holds a PhD in Public International Law and regularly advises on matters involving international investment law and treaty protection.
• Laszlo Nagy has served as an arbitrator with the German Arbitration Institute (DIS) and has acted as an arbitrator in Switzerland.

With offices across Europe and the UAE, multilingual capabilities and experience in complex cross-border disputes, NZP NAGY LEGAL provides strategic, practical and commercially focused advice throughout all phases of ICSID proceedings.

Speak to Our Arbitration Team

If your investment has been affected by state action, or if you are considering the commencement or defence of an ICSID arbitration, our team can assist you in confidentially evaluating your available options and developing an appropriate dispute-resolution strategy.