Treaty of Amity & Cooperation in Southeast Asia

As of July 2025, there are 57 countries and regional organisations signed to the Treaty.

The European Union (EU) signed the Treaty on 12 July 2012, binding all 27 of its member countries to it. However, six EU members have chosen to individually sign the Treaty.
Chart: Garasi BernamaSource: asean.orgCreated with Datawrapper