Following appointment by the Respondent, Laurence Boisson de Chazournes (French/Swiss) accepts her appointment as arbitrator.

The Tribunal is constituted in accordance with Article 37(2)(a) of the ICSID Convention. Its members are: Mark Kantor (U.S.), President, appointed by agreement of the parties; Francisco Orrego Vicuña (Chilean), appointed by the Claimants; and Laurence Boisson de Chazournes (French/Swiss), appointed by the Respondent.

The Tribunal issues Procedural Order No. 1 concerning procedural matters.

The Tribunal issues Procedural Order No. 5 concerning production of documents.

The Respondent files a rejoinder on the merits and a reply on jurisdiction.

The Claimants file a request for the exclusion of evidence.

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

The Respondent files observations on the Claimants’ request for the exclusion of evidence.

The Claimants' file a rejoinder on jurisdiction.

The Claimants file observations on the Respondent’s request of February 26, 2018.

The Tribunal issues Procedural Order No. 6 concerning the admissibility and exclusion of evidence.

The President holds a pre-hearing organizational meeting with the parties by telephone conference.

The Tribunal issues Procedural Order No. 7 concerning the exclusion of evidence.

The Tribunal issues Procedural Order No. 8 concerning the hearing schedule.

The Claimants file a response to the Respondent’s observations of February 26, 2018.

The Claimants file an additional expert report pursuant to Procedural Order No. 7.

The Claimants file an additional expert report pursuant to Procedural Order No. 1.

The Respondent files observations on Claimants’ additional report of April 15, 2018.

The Tribunal issues Procedural Order No. 9 concerning the Claimants’ additional report of April 15, 2018.

The Tribunal issues Procedural Order No. 10 concerning the organization of the hearing.

The Claimants file a request to clarify the prayer for relief in their reply on the merits and counter-memorial on jurisdiction of August 25, 2017.

The Respondent files observations on Claimants’ request of April 26, 2018.

The Tribunal holds a hearing on jurisdiction and the merits in Paris.

The Tribunal issues  Procedural Order No. 11 concerning the Claimants’ request of April 26, 2018.

A non-disputing party files an application pursuant to ICSID Arbitration Rule 37(2).

The Claimants file observations on the non-disputing party’s application of May 16, 2018.

The Tribunal issues a decision concerning the non-disputing party’s application of May 16, 2018.

The Tribunal issues Procedural Order No. 12 concerning production of documents.

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

Following the passing away of arbitrator Francisco Orrego Vicuña (Chilean), the Secretary-General notifies the parties of the vacancy on the Tribunal and the proceeding is suspended pursuant to ICSID Arbitration Rule 10(2).

Following the passing away of arbitrator Francisco Orrego Vicuña (Chilean), Andrés Jana Linetzky (Chilean) appointed by the Claimants, accepts his appointment as arbitrator in accordance with ICSID Rule 11(1).

The Tribunal is reconstituted. Its members are Mark Kantor (U.S.), President, appointed by agreement of the parties; Andrés Jana Linetzky (Chilean), appointed by the Claimants; and Laurence Boisson de Chazournes (French/Swiss), appointed by the Respondent. The proceeding is resumed pursuant to ICSID Arbitration Rule 12.

The Tribunal issues Procedural Order No. 13 concerning procedural matters.

Each party files a post-hearing brief.

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

The Claimants file observations on the Respondent’s request of January 25, 2019.

The Claimants file further observations on the Respondent’s request of January 25, 2019.

The Respondent files a response to the Claimants’ observations of February 8, 2019.

The Claimants file observations to the Respondent’s response of  February 22, 2019.

The Tribunal decides on the admissibility of new documents.

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

The Claimants file observations on the Respondent’s request of March 12, 2019 and a request for the Tribunal to decide on the admissibility of new documents.

The Tribunal decides on the admissibility of new documents.

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

The Respondent files its observations on a new document.

The Claimants file observations on Respondent’s observations of May 10, 2019 and request the admission of a new document.

The Respondent files observations on Claimant’s request of May 13, 2019.

The Claimants file observations on Respondent’s request of April 11, 2019.

The Tribunal decides on the admissibility of new documents and on procedural matters.

Each party files observations on the new documents.

The Claimants file a response to the Respondent’s observations of June 14, 2019.

The Respondent files a response to the Claimants’ response of June 21, 2019.

The Tribunal provides procedural instructions concerning the parties’ observations of June 21, 2019.

The Claimants file a reply on Respondent’s response of June 21, 2019.

The Respondent files a rejoinder on Claimants’ reply of June 28, 2019.

The Tribunal issues Procedural Order No. 14 concerning the admissibility of new documents.

Each party files a submission on costs.

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

The Claimants file observations on the Respondent’s request of March 5, 2020.

A non-disputing party files an application pursuant to ICSID Arbitration Rule 37(2).

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

The Tribunal issues a decision concerning the non-disputing party’s application of March 13, 2020.

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

The Claimants file observations on the Respondent’s request of June 23, 2020.

The Tribunal decides on the admissibility of new evidence.

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

The Claimants file observations on the Respondent’s request of October 19, 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 Claimants file observations on the Respondent’s request of March 26, 2021.

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 Claimants file observations on the Respondent’s request of September 10, 2021.

The Tribunal decides on the admissibility of new documents.

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

The Claimants file observations on the Respondent’s request of May 11, 2022.

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 Tribunal issues a decision on jurisdiction, liability and principles of quantum.

The Claimants file observations on the Respondent’s request of June 22, 2022.

The Tribunal decides on the admissibility of new evidence.

Each party files an expert report on quantum.

Each party files observations on the other party’s expert report on quantum.

Each party files a response to the other party’s observations of February 10, 2023.

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

The Respondent files a submission on costs.

The Claimants file a submission on costs.

The Tribunal renders its award.