Treaty

Convention on Transparency in Treaty-based Investor-State Arbitration

PartiesParties with a link have a reservation.

Party Signature RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known Entry into force Renunciation Termination
Australia 18-07-2017 17-09-2020 (R) 17-03-2021
Belgium 15-09-2015
Benin 10-07-2017 19-07-2021 (R) 19-01-2022
Bolivia 16-04-2018 13-10-2020 (R) 13-04-2021
Cameroon 11-05-2017 18-06-2018 (R) 18-12-2018
Canada 17-03-2015 12-12-2016 (R) 18-10-2017
EU (European Union) 02-07-2024 25-09-2025 (R) 25-03-2026
Finland 17-03-2015
France 17-03-2015
Gabon 29-09-2015
Gambia, The 20-09-2017 28-09-2018 (R) 28-03-2019
Germany 17-03-2015
Iraq 13-02-2017 20-08-2021 (R) 20-02-2022
Italy 19-05-2015
Luxembourg 15-09-2015
Madagascar 01-10-2015
Mauritius 17-03-2015 05-06-2015 (R) 18-10-2017
Netherlands, the Kingdom of the 18-05-2016
Panama 10-01-2025
Republic of the Congo 30-09-2015
Sweden 17-03-2015
Switzerland 27-03-2015 18-04-2017 (R) 18-10-2017
Syria 24-03-2015
United Kingdom 17-03-2015
United States of America 17-03-2015

Parties with reservations, declarations and objections

Party Reservations / Declarations Objections
Belgium Yes No
EU (European Union) Yes No

Belgium

15-09-2015

This signature also engages the Wallon Region, the Flemish Region and the Brussels-Capital Region.

EU (European Union)

02-07-2024

Reservation by the European Union pursuant to Article 3(l)(a) of the United Nations Convention on Transparency in Treaty-based Investor-State Arbitration (10 December 2014) (‘the Convention’)
Pursuant to Article 3(l)(a) of the Convention, the European Union declares that it shall not apply the Convention when acting as a respondent in the case of a dispute under the Energy Charter Treaty initiated against a Member State of the European Union which is not a party to the Convention, unless agreed upon otherwise with the Member State of the European Union concerned.
The Energy Charter Treaty is a multilateral agreement. At the date of this reservation, the Energy Charter Treaty has 56 contracting parties. This reservation shall apply in respect of all contracting parties that are parties to the Convention.


25-09-2025

Pursuant to Article 3(l)(a) of the Convention, the European Union declares that it shall not apply the Convention when acting as a respondent in the case of a dispute under the Energy Charter Treaty, including as a result of the application of Article 47(3) of the Energy Charter Treaty, initiated against a Member State of the European Union which is not a party to the Convention, unless agreed upon otherwise with that Member State.
The Energy Charter Treaty is a multilateral agreement. This reservation shall apply in respect to all parties to the Energy Charter Treaty that are parties to the Convention, including parties and former parties to the Energy Charter Treaty that made, have made and will make a notification pursuant to Article 47 of the Energy Charter Treaty.

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