Case Details
Hiroshi Osumi v. Swiss Confederation (ICSID Case No. ARB/26/1)
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Debt Instruments
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Finance
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JSFTEPA (Agreement on Free Trade and Economic Partnership between Japan and the Swiss Confederation)
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ICSID Convention - Arbitration Rules
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Hiroshi Osumi (Japanese)
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Swiss Confederation (Swiss)
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January 7, 2026
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Mori Hamada & Matsumoto, Tokyo, Japan
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State Secretariat for Economic Affairs SECO, Bern, Switzerland
LKK Arbitration Ltd, Geneva, Switzerland -
Pending
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March 31, 2026 - Following appointment by the Respondent, Gabriel Bottini (Argentine/Spanish) accepts his appointment as arbitrator.
(a) Original Proceeding
Party Representatives
No References Available.
(a) Original Proceeding
| Date | Development |
|---|---|
| January 7, 2026 | The Secretary-General registers a request for the institution of arbitration proceedings. |
| February 24, 2026 | Following appointment by the Claimant, Peter Turner (British/French) accepts his appointment as arbitrator. |
| March 31, 2026 | Following appointment by the Respondent, Gabriel Bottini (Argentine/Spanish) accepts his appointment as arbitrator. |

