[ANALYSIS] US-Iran MoU lapses today: Expiry does not automatically trigger a resumption of hostilities

OVERVIEW The 60-day US-Iran Islamabad Memorandum of Understanding reaches its stated deadline on Monday, although the expiry does not automatically trigger a resumption of hostilities. Iran argues there is no ceasefire left to extend because the US already violated the agreement, while there is currently no confirmed deal to extend or replace the MoU. The key market focus is on whether the expiry results in renewed negotiations, additional US sanctions, further military escalation or progress towards reopening the Strait of Hormuz. MOU EXPIRY AGREEMENT The June 17 Islamabad Memorandum of Understanding called for: Immediate and permanent termination of military operations. A final agreement within a maximum of 60 days, extendable by mutual consent. The US to end its naval blockade, ease sanctions and provide waivers for Iranian oil exports. Iran to clear mines from the Strait of Hormuz and allow vessels to transit without charge. Iran to reaffirm that it would not seek nuclear weapons and negotiate further details surrounding enrichment. Since the MoU, both sides accussed the other of violations. Trump said in July that the agreement was "over", while Iran said US actions had violated and suspended Washington's commitments and therefore Tehran had suspended its own commitments. STATE OF PLAY There is currently no confirmed US-Iran agreement to extend the MoU. Iranian Foreign Minister Araghchi said Iran had not decided to restart negotiations with the US. Araghchi said there was no 60-day ceasefire requiring an extension because the US had already violated the MoU. Qatar and Pakistan continue to exchange messages with Iran. Iran is separately negotiating with Oman regarding shipping routes through the Strait of Hormuz. Tehran has stressed that an agreement with Oman alone would not mean unrestricted shipping through Hormuz. The expiry represents a political and diplomatic deadline rather than an automatic military trigger. HORMUZ [RECAP] Iran and Oman have agreed geographical coordinates for a proposed shipping route, although a final political agreement has not been reached. Iran continues to link a broader reopening of Hormuz to US concessions. Iranian demands have included sanctions relief, release of frozen assets and compensation related to the war. Washington has demanded unrestricted commercial passage while maintaining pressure on Iran. RECENT US COMMENTARY President Trump has escalated rhetoric towards Iran and said the US would continue exerting pressure. US President Trump over the weekend described Iran as "very evil" at a political rally on Friday and told Americans to prepare for continued high fuel prices as a result of the war, which he said was worth the cost to ensure Iran could not have a nuclear weapon. US Treasury Secretary Bessent last week said Washington would introduce measures against Iran that had "never been seen". RECENT IRANIAN COMMENTARY Iran maintains that Washington violated the Islamabad MoU and therefore cannot argue that a temporary ceasefire now requires extension. Araghchi said Tehran had not made a decision to resume direct negotiations with Washington. Iran has maintained a hard line on control of Hormuz. Iranian officials have argued that Iran emerged from the conflict in a stronger negotiating position. SCENARIO 1 – MOU EXPIRES WITH NO MATERIAL CHANGE [SHORT-TERM BASE CASE] The MoU expires without a new agreement, but neither side immediately escalates militarily. Iran maintains that the agreement had already ceased to function. Washington continues its existing sanctions and blockade policy. Qatar, Pakistan and Oman continue mediation efforts. Hormuz remains restricted but does not deteriorate materially further. SCENARIO 2 – DIPLOMATIC BREAKTHROUGH / EXTENSION The US and Iran agree to extend the MoU, restart substantive negotiations or establish another diplomatic framework. Alternatively, Iran, Oman and the US reach an arrangement that results in a credible reopening of commercial traffic through Hormuz. The strongest confirmation would be an actual increase in vessel movements rather than another political announcement. SCENARIO 3 – US ESCALATES ECONOMIC PRESSURE The MoU expires and Washington announces additional sanctions or stronger enforcement measures against Iran. Measures could target buyers of Iranian crude, financial institutions facilitating transactions or sanctions-evasion networks. Iran avoids an immediate direct military response but maintains restrictions through Hormuz. SCENARIO 4 – MILITARY / SHIPPING ESCALATION The expiry is followed by another major tanker attack, direct US-Iran military confrontation or an attack on Gulf energy infrastructure. Washington increases naval enforcement around Hormuz. Iran further restricts commercial passage through the strait.