The Tribunal is constituted in accordance with Article 37(2)(a) of the ICSID Convention. Its members are: Bruno Simma (Austrian/German), President, appointed by agreement of the parties; Christoph H. Schreuer (Austrian), appointed by Claimant; and Philippe Sands (British/French), appointed by Respondent.

Following appointment by agreement of the parties, Bruno Simma (Austrian/German) accepts his appointment as presiding arbitrator.

Each party files a request for the Tribunal to decide on the admissibility of new evidence.

Each party files observations on the other party’s request for the admissibility of new evidence.

The Tribunal decides on production of documents.

The non-disputing party files a written submission pursuant to ICSID Arbitration Rule 37(2).

Each party files observations on the non-disputing party’s written submission.

The Tribunal issues Procedural Order No. 12 concerning the organization of the hearing.

Each party files a request for the Tribunal to decide on the admissibility of new evidence.

The Tribunal holds a hearing on jurisdiction and merits in Madrid.

The Tribunal issues Procedural Order No. 13 posing questions to the parties.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence.

Each party file answers to the questions posed by the Tribunal on December 19, 2018.

The Claimant files observations on the Respondent’s request of January 25, 2019.

The Tribunal decides on the admissibility of new evidence.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence.

The Claimant files observations on the Respondent’s request of April 8, 2019.

The Tribunal decides on the admissibility of new evidence.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence. 

The Claimant files observations on the Respondent’s request of November 26, 2019 and files a request for the Tribunal to decide on the admissibility of new evidence.

The Respondent files a response to the Claimant’s observations and request of December 2, 2019.

The Claimant files a response to the Respondent’s observations of January 8, 2020.

The Respondent files observations Claimant’s response of January 23, 2020.

The Tribunal decides on the admissibility of new evidence.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence.

The Claimant files observations on the Respondent’s request of March 5, 2020.

The Tribunal decides on the admissibility of new evidence.

The non-disputing party files a written submission pursuant to ICSID Arbitration Rule 37(2).

Each party files observations on the non-disputing party’s written submission.

The Tribunal issues Procedural Order No. 14 concerning procedural matters.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence.

The Tribunal poses questions to the parties and their respective experts.

The Respondent and their respective expert file answers to the questions posed by the Tribunal on September 8, 2020.

The Claimant and their respective expert file answers to the questions posed by the Tribunal on September 8, 2020.

The Claimant and their respective expert file further answers to the questions posed by the Tribunal on September 8, 2020.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence.

The Tribunal issues Procedural Order No. 15 posing questions to the parties and their respective experts.

The Claimant files observations on the Respondent’s request of October 9, 2020.

The Tribunal decides on the admissibility of new evidence.

The parties and their respective experts file joint answers to the questions posed by the Tribunal on October 19, 2020.

The Tribunal poses questions to the parties.

The parties and their respective experts file joint answers to the questions posed by the Tribunal on November 18, 2020.

The Claimant files a request for the Tribunal to decide on the admissibility of new evidence.

The Claimant files observations on the Respondent’s request of December 18, 2020.

The Tribunal decides on the admissibility of new evidence.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence. 

The Claimant files observations on the Respondent’s request of April 14, 2021.

The Tribunal decides on the admissibility of new evidence and requests the parties and their respective experts file an updated joint model.

The parties and their respective experts file an updated joint model.

The Tribunal requests the parties and their respective experts file an updated joint model.

The parties and their respective experts file an updated joint model.

The Tribunal requests the parties and their respective experts file an updated joint model.

The parties and their respective experts file an updated joint model.

The Respondent files a request for the Tribunal to decide on the admissibility of new evidence.

The Claimant files observations on the Respondent’s request of September 10, 2021.

The Tribunal decides on the Respondent’s request of September 10, 2021.

The Respondent files observations on its request of September 10, 2021.

The Claimant files further observations on the Respondent’s request of September 10, 2021.

The Tribunal declares the proceeding closed in accordance with ICSID Arbitration Rule 38(1).

The Claimant files a submission on costs.

The Respondent files a submission on costs.

The Tribunal extends the period to draw up and sign the award by 60 days in accordance with ICSID Arbitration Rule 46.

The Tribunal renders its award; attached to the award is a dissenting opinion by arbitrator Phillipe Sands.

The Acting Secretary-General registers an application for annulment of the award filed by the Kingdom of Spain and notifies the parties of the provisional stay of enforcement of the award.

The ad hoc Committee is constituted in accordance with Article 52(3) of the ICSID Convention.  Its members are: Dário Moura Vicente (Portuguese), President; Pierre Bienvenu (Canadian); and Alvaro Galindo (Colombian/Ecuadorian); all members appointed by the Chairman of the Administrative Council.