Following appointment by the parties, Lawrence Collins (British) accepts his appointment as presiding arbitrator.

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

The Tribunal issues Procedural Order No. 4 concerning the organization of the hearing.

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

The non-disputing party files a communication regarding its written submission of April 28, 2017.

Each Party files observations on the non-disputing party’s communication of May 16, 2018.

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

The non-disputing party files a written submission updating its written submission of April 28, 2017.

The Tribunal holds a videoconference in continuation of the hearing.

Each party files a post-hearing brief.

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

The Claimant files observations on the Respondent’s request of January 25, 2019, and files a request for the Tribunal to decide on the admissibility of a new document.

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

The Tribunal decides on the Respondent’s request of January 28 and on the Claimant’s request of February 4, 2019.

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

The Claimant files observations on the Respondent’s request of December 4, 2019, and files a request for the Tribunal to decide on the admissibility of new documents.

The Respondent files observations on the Claimant’s request of December 10, 2019.

The Tribunal decides on the Respondent’s request of December 4 and on the Claimant’s request of December 10, 2019 .

The Tribunal issues a decision on jurisdiction, liability and directions on quantum; attached to the decision is a dissenting opinion by arbitrator David Haigh.

The Tribunal issues Procedural Order No. 5 concerning procedural matters.

The Respondent files a request for reconsideration of the Tribunal’s Procedural Order No. 5 dated January 18, 2021.

The Claimant files observations on the Respondent’s request of January 20, 2021.

The Claimant files a witness statement on quantum.

The Respondent files a witness statement on quantum in response to the Claimant’s filing of February 12, 2021.

The Claimant files a reply witness statement on quantum.

The Respondent files a rebuttal witness statement on quantum. 

The parties file a Joint Memorandum and Joint Model prepared by both parties’ experts on quantum.

The Respondent files an Addendum to the Joint Memorandum prepared by both parties’ experts on quantum.

The Respondent files a request for reconsideration of the Tribunal’s decision of August 31, 2020.

The Claimant files observations on the Respondent’s request of October 4, 2021.

The Tribunal issues a decision concerning the Respondent’s request for reconsideration of the Tribunal’s decision of August 31, 2020.

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

Each party files a statement of costs.

The Respondent files a request for reconsideration of the Tribunal’s decisions of August 31, 2020 and January 10, 2022.

The Respondent files a request to reopen the proceeding pursuant to ICSID Arbitration Rule 38(2); for the Tribunal to decide on the admissibility of new evidence; and for the reconsideration of the Tribunal’s decisions of August 31, 2020 and January 10, 2022.

The Claimant files observations on the Respondent’s request of 28 June 2022.

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

The Tribunal issues a decision concerning the Respondent’s request of June 28, 2022 to reopen the proceeding pursuant to ICSID Arbitration Rule 38(2); for the Tribunal to decide on the admissibility of new evidence; and for the reconsideration of the Tribunal’s decisions of August 31, 2020 and January 10, 2022.

The Claimant files an updated statement of costs.

The Tribunal renders its award.

The Acting Secretary-General registers a request for supplementary decision on the award filed by the Kingdom of Spain.

The Claimant files observations on the Respondent’s request for supplementary decision.

The Respondent files a response on the Claimant’s observations of November 28, 2022.

The Claimant files a response on the Respondent’s observations of December 7, 2022.

Each party files a submission on costs.

The Tribunal issues its decision on the Respondent’s request for a supplementary decision.