The Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) is a regional supranational meta-framework foundational-CPTPP-treaty framework adopted by the 11 founding Pacific-Rim states in Santiago — structurally distinctive globally as the only modern trans-Pacific supranationa…
P4 Trans-Pacific Strategic Economic Partnership signed 18 July 2005 by Brunei + Chile + New Zealand + Singapore + effective 28 May 2006 — predecessor framework to TPP-CPTPP.
TPP negotiations launched 24 September 2008 — formal TPP negotiation framework operational.
TPP negotiations concluded 5 October 2015 in Atlanta Georgia USA with agreement-in-principle by 12 TPP founding states (US + Japan + Canada + Australia + New Zealand + Singapore + Malaysia + Brunei + Vietnam + Chile + Peru + Mexico) — pivotal modern context preceding subsequent 2016 TPP signing + 2017 Trump US withdrawal + 2018 CPTPP signing framework + foundation for 7-year trans-Pacific negotiation framework conclusion.
Trans-Pacific Partnership signed 4 February 2016 in Auckland New Zealand by 12 TPP founding states — predecessor framework to CPTPP adopted but not entered into force.
Trump-administration US withdrew from TPP 23 January 2017 — formal TPP US-withdrawal framework operational.
CPTPP Agreement signed 8 March 2018 in Santiago Chile by 11 remaining TPP states + effective 30 December 2018 — formal foundational CPTPP treaty framework operational.
UK + China + Taiwan + Ecuador applied for CPTPP membership 2021 — formal CPTPP accession-applicants framework operational.
UK CPTPP Accession Protocol signed 16 July 2023 in Auckland New Zealand — formal CPTPP first-non-Pacific-Rim-state accession framework adopted.
UK CPTPP membership effective 15 December 2024 — formal CPTPP first-non-Pacific-Rim-state accession framework operational.
Continuing CPTPP framework 2025 — Costa Rica accession negotiations launched 2025 + continuing UK CPTPP framework integration + continuing China + Taiwan + Ecuador accession applications + continuing Trump-2.0-US-non-re-engagement framework + 7 years since 2018 CPTPP entry into force + structurally distinctive globally continuing trans-Pacific-binding-treaty-without-US framework.