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Zenith Energy Africa Ltd., Zenith Overseas Assets Ltd. and Compagnie du Désert Ltd. v. Republic of Tunisia, ICSID Case No. ARB/23/18

New
Short Name:

Zenith and others v. Tunisia

Case Type:
International Investment Agreement (Investor–State)
Country in Which This Occurs:
Tunisia
Applicable Treaty:
United Kingdom-Tunisia BIT (1989)
Applicable Legal Instruments:
United Kingdom - Tunisia BIT
Economic Sector:
Mining and Quarrying, Including Hydrocarbons (oil and Gas)

Available documents

7 Jun 2023
Claimant Stock Exchange Filing (I)
Document Details:
PARTICIPANTS
Claimant Stock Exchange Filing (I)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant Stock Exchange Filing (I)
This summary note is machine-generated. Always consult the original materials.


19 Jan 2024
Procedural Order No. 1 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 1 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 1 (French)
This summary note is machine-generated. Always consult the original materials.


19 Jan 2024
Procedural Order No. 2 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 2 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 2 (French)
This summary note is machine-generated. Always consult the original materials.


20 Mar 2024
Claimant Stock Exchange Filing (II)
Document Details:
PARTICIPANTS
Claimant Stock Exchange Filing (II)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant Stock Exchange Filing (II)
This summary note is machine-generated. Always consult the original materials.


4 Jun 2024
Claimant Stock Exchange Filing (III)
Document Details:
PARTICIPANTS
Claimant Stock Exchange Filing (III)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant Stock Exchange Filing (III)
This summary note is machine-generated. Always consult the original materials.


23 Dec 2024
Procedural Order No. 3 (Decision on the Defendant's Request for Bifurcation) (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 3 (Decision on the Defendant's Request for Bifurcation) (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 3 (Decision on the Defendant's Request for Bifurcation) (French)
This summary note is machine-generated. Always consult the original materials.


26 Dec 2024
Claimant Stock Exchange Filing Regarding Tribunal's Decision on Bifurcation Request (IV)
Document Details:
PARTICIPANTS
Claimant Stock Exchange Filing Regarding Tribunal's Decision on Bifurcation Request (IV)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant Stock Exchange Filing Regarding Tribunal's Decision on Bifurcation Request (IV)
This summary note is machine-generated. Always consult the original materials.


9 Jul 2025
Procedural Order No. 4 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 4 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 4 (French)
This summary note is machine-generated. Always consult the original materials.


14 Jul 2025
Procedural Order No. 5 (Decision on the Claimants' Application for Interim Measures)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 5 (Decision on the Claimants' Application for Interim Measures)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 5 (Decision on the Claimants' Application for Interim Measures)
This summary note is machine-generated. Always consult the original materials.


1 Aug 2025
Procedural Order No. 6 (Decision on the Application for Admission of the Final Award Rendered in ICC Case No. 23799/SP/ETT/SVE)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 6 (Decision on the Application for Admission of the Final Award Rendered in ICC Case No. 23799/SP/ETT/SVE)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 6 (Decision on the Application for Admission of the Final Award Rendered in ICC Case No. 23799/SP/ETT/SVE)
This summary note is machine-generated. Always consult the original materials.


5 Aug 2025
Procedural Order No. 7 (Decision on Claimants's Request for Interim Measures) (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 7 (Decision on Claimants's Request for Interim Measures) (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 7 (Decision on Claimants's Request for Interim Measures) (French)
This summary note is machine-generated. Always consult the original materials.


22 Sep 2025
Claimant's Press Release on Final Submission of ICSID on the Merits
Document Details:
PARTICIPANTS
Claimant's Press Release on Final Submission of ICSID on the Merits
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant's Press Release on Final Submission of ICSID on the Merits
This summary note is machine-generated. Always consult the original materials.


23 Oct 2025
Procedural Order No. 8
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 8
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 8
This summary note is machine-generated. Always consult the original materials.


4 Nov 2025
Procedural Order No. 9
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 9
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Claimant appointee:
Henri C. Alvarez
Respondent appointee
Respondent appointee:
Nassib G. Ziadé
Tribunal/Panel chair
Chair/President:
Loretta Malintoppi
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Simon Le Wita, Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Thomas Granier, Anima Dispute Resolution
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 9
This summary note is machine-generated. Always consult the original materials.


3 Dec 2025
Claimant's Press Release on Legal Representative
Document Details:
PARTICIPANTS
Claimant's Press Release on Legal Representative
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Ben Juratowitch, Matthieu Gregoire, Essex Court Chambers
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant's Press Release on Legal Representative
This summary note is machine-generated. Always consult the original materials.


22 Mar 2026
Procedural Order No. 10 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 10 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 10 (French)
This summary note is machine-generated. Always consult the original materials.


30 Mar 2026
Procedural Order No. 11 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 11 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 11 (French)
This summary note is machine-generated. Always consult the original materials.


10 Apr 2026
Procedural Order No. 12 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 12 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 12 (French)
This summary note is machine-generated. Always consult the original materials.


14 May 2026
Procedural Order No. 13 (French)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 13 (French)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 13 (French)
This summary note is machine-generated. Always consult the original materials.