The Acting Secretary-General registers a request for the institution of arbitration proceedings.

Following appointment by the Claimant, Dr. Guido Santiago Tawil (Argentine/Portuguese) accepts his appointment as arbitrator.

Following appointment by the Respondent, Prof. Mónica Pinto (Argentine) accepts her appointment as arbitrator.

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

The Tribunal is constituted in accordance with Article 37(2)(a) of the ICSID Convention.  Lawrence A. Collins (British), President, appointed by agreement of the parties; Guido Santiago Tawil (Argentine/Portuguese), appointed by Claimant; and Mónica Pinto (Argentine), appointed by Respondent.

The Tribunal holds a first session by video conference.

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

The Claimant files a memorial on the merits.

The Respondent files a counter-memorial on the merits.

The Tribunal issues Procedural Order No. 2 concerning procedural matters. 

The Tribunal consents to the resignation of arbitrator Guido Tawil pursuant to ICSID Arbitration Rule 8(2) and the Secretary-General notifies the parties thereof.

Following the resignation of arbitrator Guido Tawil, 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 resignation of Guido Tawil, John Beechey (British) accepts his appointment as arbitrator, appointed by the Claimant in accordance with ICSID Arbitration Rule 11(1).

The Tribunal is reconstituted.  Its members are: Lawrence Collins (British), President, appointed by agreement of the parties; John Beechey (British), appointed by the Claimant in accordance with ICSID Arbitration Rule 11(1); and Mónica Pinto (Argentine) appointed by the Respondent. The proceeding is resumed pursuant to ICSID Arbitration Rule 12.

The Tribunal issues Procedural Order No. 3 concerning production of documents.

The Claimant files a reply on the merits.

The Respondent files a rejoinder on the merits.

The Tribunal holds a hearing on jurisdiction and the merits in Washington, D.C.

Each party files a post-hearing brief.

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

The Respondent files observations on the Claimant’s request of January 16, 2025.

The Claimant files a response to the Respondent’s observations of January 31, 2025.

The Respondent files observations to the Claimant’s response of February 7, 2025.

The Tribunal decides on the Claimant’s request of January 16, 2025.

The Claimant files observations on the new evidence. 

The Respondent files a response to the Claimant’s observations of April 15, 2025.

The Claimant files observations on the Respondent’s response of May 13, 2025.

The Respondent files a response to the Claimant’s observations of June 11, 2025, together with a request for the Tribunal to decide on the admissibility of new evidence.

The Claimant files observations on the Respondent’s request of July 9, 2025.

The Respondent files a response to the Claimant’s observations of July 24, 2025.

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

The Respondent files observations on the Claimant’s request of August 19, 2025.

The Tribunal issues Procedural Order No. 5 on the admissibility of new evidence.

The Claimant files a statement of costs.

The Respondent files a statement of costs.

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