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Optima Ventures LLC, Optima 7171 LLC and Optima 55 Public Square LLC v. United States
(ICSID Case No. ARB/21/11)
| No. | Procedural Step | Party/Tribunal | +Days | Filing Date¹ |
|---|---|---|---|---|
| 1. | Memorial | Claimants | 240 days from Tribunal’s adoption of proposed procedural calendar. | Wednesday, March 26, 2025 |
| 2. | Counter-Memorial on Merits and Memorial on Jurisdiction | Respondent | 240 days | Friday, November 21, 2025 |
| Non-Disputing Party Submissions and Amicus Submissions | ||||
| 3. | Request for Non-Disputing Party Submission (with proposed Non-Disputing Party submission) & applications by other non-disputing parties for leave to file amicus submissions (with proposed amicus submissions) | Ukraine and the Public | 30 days after Counter-Memorial on Merits and Memorial on Jurisdiction | Monday, December 22, 2025 |
| 4. | Simultaneous Observations on Request for Non-Disputing Party Submission and amicus applications | Claimants and Respondent | 30 days | Wednesday, January 21, 2026 |
| 5. | Tribunal Decision on Non-Disputing Party Submission and amicus applications | Tribunal | 15 days, if possible | Thursday, February 5, 2026 |
| Document Production | ||||
| 6. | Request for Production of Documents (PO1, Annex C – Model Schedule) | Claimants and Respondent | 15 days from Counter-Memorial on Merits and Memorial on Jurisdiction | Monday, December 8, 2025 |
| 7. | Responses and/or Objections to the Request for Production of Documents; Production of Uncontested Documents | Claimants and Respondent | 60 days | Friday, February 6, 2026 |
| 8. | Reply to Objections to the Request for Production of Documents – Sent to Tribunal | Claimants and Respondent | 30 days | Monday, March 9, 2026 |
¹ All dates are subject to recalculation based on the prior procedural step(s) and where a filing would otherwise fall on a holiday or non-business day (including religious holidays observed by the parties), the dates reflect the next business day.
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| No. | Procedural Step | Party/Tribunal | +Days | Filing Date¹ |
|---|---|---|---|---|
| 9. | Decision on Production of Documents | Tribunal | 15 days, if possible | Tuesday, March 24, 2026 |
| 10. | Production of Remaining Documents | Claimants and Respondent | 30 days after Tribunal Decision | Thursday, April 23, 2026 |
| Reply, Rejoinder | ||||
| 11. | Reply on Merits and Counter-Memorial on Jurisdiction, including responses to Non-Disputing Party submission and any amicus briefs | Claimants | 120 days from Production of Remaining Documents | Friday, August 21, 2026 |
| 12. | Rejoinder on the Merits and Reply on Jurisdiction, including responses to Non-Disputing Party submission and any amicus briefs | Respondent | 120 days | Monday, December 21, 2026 |
| 13. | Rejoinder on Jurisdiction | Claimants | 60 days | Friday, February 19, 2027 |
| Pre-Hearing, Hearing, Decision | ||||
| 14. | Pre-Hearing Organizational Meeting | All | At least 45 days after Rejoinder on Jurisdiction | Monday, April 5, 2027 |
| 15. | Hearing on Jurisdiction and the Merits² | All | 90+ days from the Rejoinder on Jurisdiction | TBD |
| 16. | Transcript Errata and Redactions | Claimants & Respondent | 30 days | TBD |
| 17. | Simultaneous Submissions on Costs | Claimants & Respondent | 30 days | TBD |
| 18. | Simultaneous Observations on the Submission on Costs of the Other Party | Claimants & Respondent | 15 days | TBD |
| 19. | Decision or Award | Tribunal | TBD | TBD |
² The Parties may request the opportunity to submit post-hearing briefs (to be discussed at the end of the hearing).