of plutonium. However, the Islamic Republic reneged on its promise to permit the IAEA to carry out their inspections and suspended the Additional Protocol agreement outlined above in October 2005. A comprehensive list of Iran's specific "breaches" of its safeguards agreement, which the IAEA described as part of a "pattern of concealment," can be found in a 15 November 2004 report of the IAEA on Iran's nuclear program. Iran attributed its failure to report certain acquisitions and activities to US obstructionism, which reportedly included pressuring the IAEA to cease providing technical assistance to Iran's uranium conversion program in 1983. On the question of whether Iran had a hidden nuclear weapons program, the IAEA's November 2003 report states that it found "no evidence" that the previously undeclared activities were related to a nuclear weapons program, but also that it was unable to conclude that Iran's nuclear program was exclusively peaceful. In June 2004, construction began on IR-40, a 40 MW heavy water reactor. Under the terms of the Paris Agreement, on 14 November 2004, Iran's chief nuclear negotiator announced a voluntary and temporary suspension of its uranium enrichment program (enrichment is not a violation of the NPT) and the voluntary implementation of the Additional Protocol, after pressure from the United Kingdom, France, and Germany on behalf of the European Union. The measure was said at the time to be a voluntary confidence-building measure, to continue for some reasonable period of time (six months being mentioned as a reference) as negotiations with the EU-3 continued. On 24 November, Iran sought to amend the terms of its agreement with the EU to exclude a handful of the equipment from this deal for research work. This request was dropped four days later. According to Seyed Hossein Mousavian, one of the Iranian representatives to the Paris Agreement negotiations, the Iranians made it clear to their European counterparts that Iran would not consider a permanent end to uranium enrichment: In February 2005, Iran pressed the EU-3 to speed up talks, which the EU-3 refused to do. The talks made little progress because of the divergent positions of the two sides. Under pressure from US, European negotiators could not agree to allow enrichment on Iranian soil. Although Iranians presented an offer, which included voluntary restrictions on the enrichment volume and output, it was rejected. The EU-3 broke a commitment they had made to recognize Iran's right under