Overview

• U.S. envoy Steve Witkoff’s draft, presented on May 31, would let Iran enrich uranium domestically up to 3% purity, join a regional enrichment consortium and submit to enhanced IAEA verification.
• The plan requires Iran to render underground enrichment sites non-operational for agreed periods, dismantle critical conversion infrastructure and suspend new centrifuge research.
• Iran’s nuclear negotiating committee, under Supreme Leader Ali Khamenei’s oversight, denounces the offer as one-sided for its vague sanctions relief timeline and restrictions on peaceful enrichment.
• President Trump later posted that any deal would bar “any enrichment of uranium,” contradicting key elements of his envoy’s proposal.
• A confidential IAEA report shows Iran’s near weapons-grade stockpile has risen to 408.6 kg, prompting calls from Director General Rafael Grossi for greater transparency ahead of Tehran’s formal reply.