In this article, the authors argue that, in order to reduce public resistance to investor-State dispute settlement (ISDS) in East Asia, arbitral institutions must increase its transparency. They critically discuss the growing demand for transparency in ISDS proceedings and, in particular, highlight the current UNCITRAL/ICSID draft Code of Conduct for Arbitrators in International Investment Dispute Resolution, suggesting that there should be a default rule stipulating that crucial information pertaining to ICSID arbitrations, including as to awards, should be publicly disclosed.