The Daily BriefMorning Briefing · Thursday 18 June 2026 · 22:00 BST
Morning Briefing · Thursday 18 June 2026

Trump and Iran’s President Formally Sign Deal Overnight: $300bn Reconstruction Plan, Uranium Dilution Agreed

President Donald Trump and Iran’s president formally signed the deal Wednesday evening into Thursday morning, hardening the Sunday framework into the operative pact. A US official provided what was described as the text of the preliminary agreement, which outlines a $300 billion plan for Iran’s reconstruction. Iran has agreed to dilute its enriched uranium stockpile under the operative terms. The signing extends the Strait of Hormuz reopening, the lifting of the US naval blockade, and the sanctions-waiver framework. Trump departed the G7 Summit following the signing.

Dive deeper

The formal Trump-Iran-president signing is the structural hardening from the Sunday framework to the operative pact. The $300 billion reconstruction plan is the principal Iran-side concession unlock: the financing architecture reportedly involves Saudi Arabia, Qatar and UAE through sovereign-wealth-fund vehicles tied to the framework Saudi-led six-state alignment. The uranium dilution commitment is the most material nuclear-track concession of the cycle; it materially reduces the breakout-time question that has defined the international Iran-policy debate since 2018. Macron separately confirmed G7 leaders unanimously welcomed the framework and the Hormuz reopening. The first 30-day compliance window for sanctions-waiver operationalisation remains the principal structural test.

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