Case Details

Optim Holding GmbH v. Ukraine (ICSID Case No. ARB/25/47)

Subject of Dispute:

Trading company
Economic Sector:

Services & Trade
Instrument(s) Invoked:

BIT Ukraine - Austria 1996
Applicable Rules:

ICSID Convention - Arbitration Rules

(a) Original Proceeding

Claimant(s)/Nationality(ies):

Optim Holding GmbH (Austrian)
Respondent(s):

Ukraine (Ukrainian)
Date Registered:

November 5, 2025
Date of Constitution of Tribunal:

July 7, 2026

Composition of Tribunal

President:

Barton LEGUM (U.S.) - Appointed by Co-Arbitrators
Arbitrators:

Andrea BIANCHI (Italian, Swiss) - Appointed by the Claimant(s)
J. William ROWLEY (British, Canadian) - Appointed by the Respondent(s)

Party Representatives

Claimant(s):

Wagner Arbitration Partnerschaft von Rechtsanwälten mbB, Berlin, Germany
Respondent(s):

Holland & Knight, Boston, MA, U.S.A.
Ministry of Justice of Ukraine, Kyiv, Ukraine
Status of Proceeding:

Pending
Latest Development:

October 8, 2026 - The Respondent files observations on the Claimant’s request of September 23, 2026.

(a) Original Proceeding

Published Decisions

Procedural Order No. 1

Procedural Order No. 2

Available on the ICSID Website

Procedural Order No. 1 (September 7, 2026) English (Original)

Procedural Order No. 2 (September 7, 2026) English (Original)

(a) Original Proceeding

Date	Development
November 5, 2025	The Secretary-General registers a request for the institution of arbitration proceedings.
February 12, 2026	Following appointment by the Claimant, Andrea Bianchi (Swiss/Italian) accepts his appointment as arbitrator.
March 10, 2026	Following appointment by the Respondent, J. William Rowley (British/Canadian) accepts his appointment as arbitrator.
July 7, 2026	Following appointment by his co-arbitrators pursuant to the parties’ agreement, Barton Legum (U.S.) accepts his appointment as presiding arbitrator.
July 7, 2026	The Tribunal is constituted in accordance with 37(2)(b) of the ICSID Convention. Its members are: Barton Legum (U.S.), President, appointed by his co-arbitrators pursuant to the parties’ agreement; Andrea Bianchi (Swiss/Italian), appointed by the Claimant; and J. William Rowley KC (Canadian/British), appointed by the Respondent.
August 26, 2026	The Tribunal holds a first session by video conference.
September 7, 2026	The Tribunal issues Procedural Order No. 1 concerning procedural matters.
September 7, 2026	The Tribunal issues Procedural Order No. 2 concerning transparency and confidentiality.
September 23, 2026	The Claimant files a request for an interim decision on costs.
October 8, 2026	The Respondent files observations on the Claimant’s request of September 23, 2026.