Case Details

Webuild S.p.A. v. Argentine Republic (ICSID Case No. ARB/26/7)

Subject of Dispute:

Highway construction concession
Economic Sector:

Transportation
Instrument(s) Invoked:

BIT Argentina - Italy 1990
Applicable Rules:

ICSID Convention - Arbitration Rules

(a) Original Proceeding

Claimant(s)/Nationality(ies):

Webuild S.p.A. (Italian)
Respondent(s):

Argentine Republic (Argentine)
Date Registered:

February 2, 2026
Date of Constitution of Tribunal:

July 27, 2026

Composition of Tribunal

President:

Sean MURPHY (U.S.) - Appointed by the Chairman of the Administrative Council
Arbitrators:

Stephan SCHILL (German) - Appointed by the Claimant(s)
Philippe SANDS (British, French) - Appointed by the Respondent(s)

Party Representatives

Claimant(s):

King & Spalding, Houston, TX and Denver, CO, U.S.A.
Marval, O’Farrell & Mairal, Buenos Aires, Argentina
Webuild S.p.A., Rozzano, Italy
Respondent(s):

Procurador del Tesoro de la Nación, Buenos Aires, Argentina
Status of Proceeding:

Pending
Latest Development:

September 1, 2026 - Each party files further observations on the proposal for disqualification.

No References Available.

(a) Original Proceeding

Date	Development
February 2, 2026	The Secretary-General registers a request for the institution of arbitration proceedings.
April 7, 2026	Following appointment by the Claimant, Stephan Schill (German) accepts his appointment as arbitrator.
April 29, 2026	Following appointment by the Respondent, Philippe Sands (British/French) accepts his appointment as arbitrator.
July 27, 2026	Following appointment by the Chair of the Administrative Council in accordance with Article 38 of the ICSID Convention, Sean Murphy (U.S.) accepts his appointment as presiding arbitrator.
July 27, 2026	The Tribunal is constituted in accordance with Article 37(2)(b) of the ICSID Convention. Its members are: Sean Murphy (U.S.), President, appointed by the Chair of the Administrative Council in accordance with Article 38 of the ICSID Convention; Stephan Schill (German), appointed by the Claimant; and Philippe Sands (British/French), appointed by the Respondent.
July 27, 2026	The Claimant files a proposal for the disqualification of arbitrator Philippe Sands pursuant to ICSID Arbitration Rule 22(1). The proceeding is suspended in accordance with ICSID Arbitration Rule 22(2).
August 21, 2026	The Respondent files observations on the proposal for disqualification.
August 25, 2026	Arbitrator Philippe Sands files a statement regarding the proposal for disqualification.
September 1, 2026	Each party files further observations on the proposal for disqualification.