Aspetti problematici dell’accordo sull’estinzione dei trattati bilaterali di investimento tra Stati membri dell’Unione europea

On 5 May 2020, 23 Member States signed the Agreement for the termination of Bilateral Investment Treaties between the Member States of the European Union, providing for the termination of all Intra-EU BITs concluded between the parties. The Termination Agreement, which entered into force on 29 August 2020, represents the last step taken by Member States to comply with the European Court of Justice ruling in the Achmea judgment, where the Court found investor-State arbitration based on BITs incompatible with EU treaties. This paper discusses a number of issues arising out of the Termination Agreement. After illustrating its scope and content, the paper focuses on its most controversial aspects, namely the termination of BITs together with the sunset clauses therein contained, and the impact of the Agreement on pending arbitration proceedings. It is argued that while the Agreement seems to be in line with the general international law on treaty termination, its impact on pending proceedings is likely to be problematic according to the general principles regulating the judicial function in international law. Moreover, the paper analyses the controversial implications stemming from the Agreement in terms of the relations between Member States parties to the Agreement and third parties to the ICSID Convention, as well as its impact on investors’ position under international and domestic law.