Members agreed that these materials fell outside the scope of NPT Article III.2 for inclusion on the Trigger List. Sweden, Chair of a working group to consider addition of plutonium enrichment equipment to the Trigger List, reported no agreement as yet. The Chairman reported on an initial informal meeting with IAEA staff to discuss procedures for keeping the Agency informed on Trigger List changes and the rationale for such changes, since the Agency uses the Zangger Trigger List as a reference document.