The ICSID unanimously decided to annul an arbitral award issued against Spain because of the improper constitution of the tribunal, namely that the investors’ appointed arbitrator had a conflict of interest. Said conflict of interest was first discovered and disclosed by GST LLP while representing Pakistan in the proceeding with the Australian joint venture, Tethyan Copper Company Pty Ltd in 2017. When asked to comment on the ruling, GST LLP’s Diego Gosis explains, “there is increased momentum for concerns relating to the integrity of tribunals.”