Maja Kocijancic, a spokeswoman for the EU High Representative of the Union for Foreign Affairs and Security Policy Catherine Ashton, responded that "if Armenia were to join any customs union, this would not be compatible with concluding a bilateral Deep and Comprehensive Free Trade Agreement between the EU and Armenia because a customs union has a common external trade policy and an individual member country no longer has sovereign control over its external trade policies."
Maja Kocijancic, portavoz do Alto Representante da Unión para Asuntos Exteriores e Política de Seguridade, Catherine Ashton, respondeu que "Se Armenia entrara noutra unión, iso non sería compatible coa celebración dun acordo bilateral profunda e ampla de Libre Comercio entre a UE e Armenia por mor de que unha unión aduaneira ten unha política comercial externa común e un país membro individual xa non ten o control soberano sobre as súas políticas de comercio exterior."