Where In The World Is Iran's Enriched Uranium?

From the Daily Mail: "Israel admits it has no idea where Iran’s stockpile of enriched uranium is - as Tehran declares it has no intention of restarting nuke talks with US." Per the article, Israel's defense minister, "Israel Katz said that the military was unsure of the location of the 400 kilograms of enriched uranium that the UN's nuclear watchdog, the IAEA, claims Tehran has produced." The article also noted comments from Iran's Foreign Minister Abbas Araghchi that Iran had not agreed to conduct new negotiations over its nuclear program.