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EVENTS

Annulment of Investor-State Arbitration Awards in Domestic Courts - Empirical Study Launch

Arbitration+1

Date: 15 October 2025

Time: 19.00 - 21.00 (Registration from 18.30)
Followed by a reception

Venue: Baker Botts, Level 30, 20 Fenchurch Street, City of London, London EC3M 3BY and Online

Co-organised by:

Event Details

Join BIICL and Baker Botts on 15 October 2025 at the Baker Botts offices in London for the launch of an innovative empirical study on the annulment of investor-state arbitration awards in domestic courts.

The evening event will bring together leading practitioners, academics, and policymakers to explore key findings, discuss trends in annulment proceedings, and examine the broader implications for international arbitration.

This study reviews 170 non-ICSID annulment proceedings across 16 jurisdictions and compares them with ICSID annulment practice. It shows that national courts annulled awards at a significantly higher rate than the success rate under ICSID's narrowly defined annulment grounds. It analyses the concentration of annulments in a handful of jurisdictions reflecting both their popularity as arbitral seats and the broader grounds available under national laws, particularly public policy and jurisdictional challenges.

While non-ICSID annulments are growing in number and increasingly successful, ICSID annulment remains an exceptional remedy with a consistently low rate of success and limited practical impact. The study identifies notable trends, including the growth in annulment applications, the increasing use of public policy objections, and divergent approaches to intra-EU law objections (accepted in Sweden and France, rejected in Switzerland and outside the EU).

Join the conversation on BlueSky #ITFLaw #ISDS

Speakers

  • Prof. Maxi Scherer, Co-founder, ArbBoutique
  • Prof. Martins Paparinskis, University College London
  • Cyrus Benson, Arbitrator, 4 New Square Chambers
  • Prof. Yarik Kryvoi, Senior Fellow in International Economic Law and Director of the Investment Treaty Forum, BIICL
  • Dr Johannes Koepp, Partner, Baker Botts (UK) LLP
  • David Turner, Partner, Baker Botts (UK) LLP
  • Jack Biggs, Senior Associate, Baker Botts (UK) LLP
  • Irene Zegarra-Ballón, Associate, Baker Botts (UK) LLP


Pricing and Registration 

REGISTRATION IS NOW CLOSED

CPD Information

This event offers the equivalent of 2 CPD hours.

Contact

If you have any queries, please contact the Events team. 

Event Recording

Please note that our events may be photographed or recorded. These materials will be used for internal and external promotional purposes only by the British Institute of International and Comparative Law. If you object to appearing in recordings or photographs, please contact the Events Team to let us know ahead of the event.

Event Cancellation Policy

When you register for an event you will be asked to confirm that you have read and understood our cancellation policy.

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