Possible Clues:

• European trade group
• Acronym for a European trade group
• Iceland, Liechtenstein, Norway and Switzerland are the remaining members of ____
• An intergovernmental organisation whose members include Iceland, Liechtenstein, Norway and Switzerland
• European trade association whose members include Norway and Iceland
• Free trade group (abbrev.)
• Twisted fate of European trade group
• In brief, talked about trade group, initially