Ongoing US-Iran negotiations mediated by Qatar center on sanctions relief and reopening the Strait of Hormuz in exchange for limits on Iran's nuclear program, with the fate of roughly 440 kilograms of 60 percent enriched uranium remaining the core sticking point. Iranian officials have repeatedly stated that no enriched material will leave the country, rejecting transfer proposals while signaling openness to domestic dilution or IAEA-monitored measures short of export. US demands emphasize verifiable reductions in enrichment capacity and stockpile disposition, with resolution criteria requiring actual US custody rather than agreements alone. Recent statements from Iranian security figures and foreign ministry spokespeople reinforce this position, while diplomatic channels continue amid threats of renewed pressure. Traders price the December 31 outcome at low probability, reflecting structural barriers to physical transfer.