1. On 20 March 2001, Compañía de Aguas del Aconquija S.A. (“CAA”) and Compagnie Générale des Eaux (“CGE”; CGE and CAA are referred to, collectively, as “Claimants”) filed with the Secretary–General of the International Centre for Settlement of Investment Disputes (“ICSID”) an application in writing (the “Application”) requesting the partial annulment of an Award dated 21 November 2000 (the “Award”) rendered by the Tribunal in the arbitration between Claimants and Respondent.