貿易圏
not all members participating yet involving goods, services, telecommunications, transport (full liberalisation of railways from 2012), energy (full liberalisation from 2007) telecommunications, transport and energy - proposed sensitive goods to be covered from 2019 least developed members to join from 2012 least developed members to join from 2017 Additionally some non member states also participate (the European Union, EFTA and NATO have overlapping membership and various common initiatives regarding the European integration). Additionally some non member states also participate (ASEAN Plus Three)