State Responsibility and Investor-State Dispute Settlement Workshop

The State Responsibility and Investor–State Dispute Settlement Workshop will take place on 13 November 2026 at Nishimura & Asahi (Gaikokuho Kyodo Jigyo) in Tokyo. The workshop will begin with the general principles of State responsibility under international law, including attribution, breach, circumstances precluding wrongfulness, causation and reparation. It will then examine how these principles operate in the specific context of investor–State arbitration and shape the presentation, defence and resolution of investment treaty claims. The workshop will be particularly useful for government officials, State counsel, legal advisers and practitioners involved in disputes concerning State responsibility, as well as academics, researchers and others seeking to deepen their understanding of this area of international law and its practical application in investor–State proceedings. The hybrid event will bring together leading experts to discuss current developments in Japan, Asia and the wider ISDS landscape, followed by an audience Q&A and networking reception. In-person participation is by invitation only; online participation requires advance registration.