Since 2019, a multilateral instrument on investor-State dispute settlement (“ISDS”) reform (“MIIR”) has been under discussion by UNCITRAL Working Group III (“WGIII”) as a potential mechanism for implementing a suite of reforms to ISDS. The MIIR is envisaged to serve as the framework by which States may apply various innovative features in their investment disputes….

Among the items on the agenda of the 43rd session of UNCITRAL Working Group III (“WGIII“) was the multilateral instrument on investment reform (the “MIIR“). This instrument is being developed as a mode for delivering the reforms to ISDS that are agreed upon by WGIII. Although the Secretariat was instructed to do further work on…