Transnational res judicata in international commercial disputes and potential influences for BRI dispute resolution

Res judicata plays an important role in the management of complex cross-border commercial disputes. Courts and tribunals are increasingly required to grapple with the application of res judicata on the basis of a prior determination from a different, and potentially unfamiliar, legal system. These considerations come even more alive in the context of the ambitious transnational project of the Belt & Road Initiative. This paper critically examines the Singapore Court of Appeal's decision in Merck Sharp & Dohme Corp v Merck KgGA, which offers a cooperative vision of transnational res judicata that strikes a balance between comity and mutual trust between national legal systems, and each system's own sovereign and constitutional responsibilities and interests. The paper also considers the potential influences of Merck's unique transnational vision for the BRI dispute resolution ecosystem.