Abstract

The recent practice of States to amend, suspend or terminate investment treaties has moved questions of potential ‘post-termination responsibility’ to the forefront of the contemporary legal discourse in international investment law. Although States have often included provisions in their respective treaties to regulate post-termination protection of investments, some aspects of the aftermath of treaty terminations are still unsettled. This article defines and discusses various types of ‘post-termination responsibility’ by reviewing current practice, doctrine and jurisprudence on the matter. In that vein, it examines terminations, modifications and suspensions that were unlawful and ineffective, or effective but not capable of releasing the State from all treaty obligations either by virtue of survival clauses or separate principles of vested or third-party rights. It then elaborates on denunciations of the ICSID Convention or terminations of BITs and their effects on pending proceedings or the right to initiate proceedings in the future. Moreover, the article discusses whether survival clauses apply solely to unilateral or also to mutual terminations of investment treaties. It will also address the question whether investor rights may continue to be protected as a result of acquired/vested rights or third-party rights. By analysing the most recent jurisprudence and practice of States, as well as more general foundations of general international law, this article aims to contribute to a clarification of these questions.

中文翻译：

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国家的终止后责任？——投资条约的修订/修改、暂停和终止对投资者（既得）权利的影响

摘要

各国最近修改、暂停或终止投资条约的做法已将潜在的“终止后责任”问题推到了当代国际投资法法律讨论的前沿。尽管各国经常在其各自的条约中纳入条款来规范投资终止后的保护，但条约终止后的某些方面仍未解决。本文通过回顾有关此事的当前实践、学说和判例来定义和讨论各种类型的“终止后责任”。在这种情况下，它会检查非法和无效的终止、修改和暂停，或有效但不能凭借生存条款或既得或第三方权利的单独原则使国家免除所有条约义务。然后，它详细阐述了退出 ICSID 公约或终止 BIT 及其对未决程序或未来启动程序的权利的影响。此外，本文还讨论了生存条款是否仅适用于单方面或也适用于投资条约的相互终止。它还将解决投资者权利是否会因获得/既得权利或第三方权利而继续受到保护的问题。本文通过分析各国最新的判例和实践，以及更普遍的一般国际法基础，旨在帮助澄清这些问题。然后，它详细阐述了退出 ICSID 公约或终止 BIT 及其对未决程序或未来启动程序的权利的影响。此外，本文还讨论了生存条款是否仅适用于单方面或也适用于投资条约的相互终止。它还将解决投资者权利是否会因获得/既得权利或第三方权利而继续受到保护的问题。本文通过分析各国最新的判例和实践，以及更普遍的一般国际法基础，旨在帮助澄清这些问题。然后，它详细阐述了退出 ICSID 公约或终止 BIT 及其对未决程序或未来启动程序的权利的影响。此外，本文还讨论了生存条款是否仅适用于单方面或也适用于投资条约的相互终止。它还将解决投资者权利是否会因获得/既得权利或第三方权利而继续受到保护的问题。本文通过分析各国最新的判例和实践，以及更普遍的一般国际法基础，旨在帮助澄清这些问题。文章讨论了生存条款是仅适用于单方面终止投资条约还是也适用于相互终止投资条约。它还将解决投资者权利是否会因获得/既得权利或第三方权利而继续受到保护的问题。本文通过分析各国最新的判例和实践，以及更普遍的一般国际法基础，旨在帮助澄清这些问题。文章讨论了生存条款是仅适用于单方面终止投资条约还是也适用于相互终止投资条约。它还将解决投资者权利是否会因获得/既得权利或第三方权利而继续受到保护的问题。本文通过分析各国最新的判例和实践，以及更普遍的一般国际法基础，旨在帮助澄清这些问题。