Director Vivienne Li will be speaking at the 2026 IPBA Arbitration Day.

Expert Testimony in Arbitration: Boon or Bane?

The use of expert evidence in international arbitration continues to evolve as transactions become more sophisticated, disputes become more data-driven, and methodologies for quantification of claims and damages develop. The insights of expert witnesses are more frequently adduced in high-stakes, complex commercial cases and technical construction disputes, where tribunals are asked to rely heavily on external technical or financial expertise. The dual nature of expert evidence in international arbitration–as boon or bane–is an ongoing debate. This session will explore the usefulness of expert testimonies and the challenges these pose to arbitrators and arbitration lawyers specifically and to the process of international arbitration as a whole. The session aims to provide the conference participants with valuable insight into managing experts and collaboration with them, to ensure they provide independent, objective, and useful assistance rather than potentially biased or confusing evidence.

Moderator

• Patricia-Ann Prodigalidad, Manil

Speakers

• Alessa Pang, Singapore
• Rouven Bodenheimer, Cologne
• Iain Potter, Singapore
• Hao Wu, Hong Kong
• Vivienne Li, Singapore