"The attitude and the actions of the Europeans in the next few days will be the determining factor," Foreign Ministry spokesman Hamid-Reza Asefi told reporters. Three European heavyweights – Britain, France and Germany – have been trying to obtain guarantees that Tehran's nuclear program was peaceful in exchange for expanded trade benefits. Asefi said Iran's decision last week to resume uranium conversion work, which is a precursor to enrichment, was "not negotiable”. He added the Iranian government had not yet reached a consensus on uranium enrichment to make fuel for nuclear reactors. At an emergency meeting Thursday, the International Atomic Energy Agency called on Iran to halt the nuclear fuel cycle work and ordered the UN watchdog to report on September 3 on Tehran's compliance with international safeguards. Asefi said the resolution was not acceptable because it singled out the restart of work in the Uranium Conversion Facility in Isfahan.