Iran's foreign minister arrived Monday in Tokyo for talks expected to focus on Teheran's commitment to a recent joint uranium enrichment proposal aimed at easing concerns that the country wants to build nuclear weapons. Japan, which relies on Iran for much of its oil imports, has been keen to play a role in resolving the standoff. Tokyo also has a special link with Mottaki, who served as ambassador to Japan from 1994-1999. Iranian Foreign Minister Manouchehr Mottaki was slated to meet Japan's Foreign Minister Taro Aso later Monday. Prime Minister Junichiro Koizumi also was to greet Mottaki, the Foreign Ministry said.