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

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Short Name:

Case type:
International Investment Agreement (Investor–State)
Country in which this occurs:
Tunisia
Seat of Arbitration:
Investment treaty:
United Kingdom - Tunisia BIT
Applicable legal instruments:
United Kingdom - Tunisia BIT
Economic sector:
Mining and quarrying, including hydrocarbons (oil and gas)

Available documents

7 Jun 2023
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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
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This summary note is machine-generated. Always consult the original materials.


19 Jan 2024
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


19 Jan 2024
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


20 Mar 2024
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


4 Jun 2024
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


23 Dec 2024
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


26 Dec 2024
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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
This summary note is machine-generated. Always consult the original materials.


9 Jul 2025
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


14 Jul 2025
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


1 Aug 2025
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


5 Aug 2025
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Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


22 Sep 2025
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Participants listed for this document only; this may not include all participants involved in the entire case.
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
This summary note is machine-generated. Always consult the original materials.


23 Oct 2025
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PARTICIPANTS
Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


4 Nov 2025
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PARTICIPANTS
Participants listed for this document only; this may not include all participants involved in the entire case.
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, Me Laura Desan, Charles Russell Speechlys
Respondent's counsel
Ahmed Ouerfelli, Ouerfelli Attorneys & Counsels, Jacob Grierson, Me 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
This summary note is machine-generated. Always consult the original materials.


3 Dec 2025
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Participants listed for this document only; this may not include all participants involved in the entire case.
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
This summary note is machine-generated. Always consult the original materials.