〔Overnight Brief〕Hormuz Main TSS Lane Reopens After US Mine Sweep, 500+ Ships Cleared Southern Route in 30 Days, Yet Monday Saw One Bulker — the Lowest Since May 7 — as Iran Vows Retaliation Alongside the Oman Corridor Deal

0. Overnight Arc

The physical channel is reopening while the diplomatic channel narrows. US Navy underwater drones scanned "over 100 suspected mine objects" and cleared the main Traffic Separation Scheme lane between Iran and Oman ^[1], and President Trump said all international-water mines have been removed or detonated ^[2][3]. Iran and Oman moved from a working visit to a joint statement: a temporary joint maritime lane plus a joint mine-clearance project, with a 60-day target for a permanent corridor under Article 5 of the Islamabad Memorandum ^[4][5][6][7]. Yet Monday saw just one bulk-commodity vessel transit Hormuz, the lowest since May 7 ^[3]; a tanker was hit on a US-protected route ^[8]; and Deputy FM Gharibabadi warned the Strait is "not our only tool" against the US ^[9][3].

1. Corridor Diplomacy — Joint Statement, 60-Day Clock

• **[NEW] Iran-Oman joint statement:** Foreign Ministers Badr Albusaidi and Abbas Araghchi agreed on a phased framework — a temporary joint maritime corridor and a joint mine-clearance project — with technical talks to follow on a permanent lane, future management, and traffic-information exchange "in accordance with Article 5 of the Islamabad Memorandum" ^[5][6][7].
• **[NEW] 60-day target:** Iran and Oman aim to finalize a permanent Hormuz corridor within 60 days, per Iranian sources ^[4][3].
• **[ONGOING] Pakistan back-channel:** A source close to Iran's negotiating team says Tehran wants Islamabad to relay its terms, anchored in Article 5 covering Hormuz management; Pakistan's Army Chief Munir met Iranian counterparts on August 24 ^[10].
• **[ESCALATED] Russian-media relay (single source, unverified):** Russian outlets citing sources report the US and Iran have reached consensus on a ceasefire that includes free Hormuz navigation ^[3]. Contradicted below by a White House official ^[3].

2. Mine Clearance and Force Posture

• **[NEW] US Navy mine sweep:** Main TSS lane between Iran and Oman now allows more tankers under US protection; officials cited "over 100 suspected mine objects" found and cleared or detonated ^[1]. Trump: any vessel that re-mines will be "immediately and systematically destroyed," with Space Force monitoring the Strait plus the "Gaoshan" site and three other struck nuclear facilities ^[2][3].
• **[NEW] Tehran's hard line:** Deputy FM Gharibabadi: "any warship must not pass through the Strait of Hormuz," and warned that if the US continues its actions Iran will "show new capabilities"; "the Strait of Hormuz is not our only tool" ^[9][3].
• **[ONGOING] US strike option preserved:** Defense Secretary Pete Hegseth, visiting Wisconsin defense industry on August 24, did not rule out renewed military strikes, calling economic pressure the most damaging lever; he dismissed munitions-inventory questions as "stupid" but said the US has "110%" of what it needs ^[11].
• **[ONGOING] Munitions strain (single source):** US offensive and defensive stockpiles have repeatedly flashed red across reporting, though neither the White House nor Pentagon has formally confirmed ^[11].

3. Flow Data: One Bulker vs. 500 Ships

• **[NEW] Monday transit collapse:** Only one bulk-commodity vessel transited Hormuz on Monday, the lowest since May 7 ^[3].
• **[NEW] Southern corridor throughput:** Over 500 ships passed through the Strait's southern corridor in the past 30 days, with only about 2% hit by Iranian drones or missiles ^[3][1][12].
• **[NEW] Iraq loadings jump:** Seven tankers loaded at Iraq's Persian Gulf export installations on Monday, per satellite and shipping data — the latest sign regional flows are climbing ^[13]. CopernicusEU Sentinel-2 imagery from August 24 shows activity at Iraq, Saudi Arabia (two sites), and Kuwait oil ports inside the Gulf ^[14].
• **[ONGOING] US supply cushion:** Bloomberg's Daniel Lacalle argues the US oil surge is already tempering the Middle East risk premium ^[15].
• **[NEW] Attack tally:** The International Maritime Organization logged 68 maritime attacks in Middle East waters over the past six months, killing at least 20; about half the vessels involved were tankers, with 11 incidents causing seafarer deaths and one strike on a Bahrain port facility killing a shipyard worker ^[16].
• **[ONGOING] China-Iran trade exposure:** Beijing threatened to retaliate after Treasury Secretary Scott Bessent unveiled new sanctions on Chinese and Hong Kong entities and vessels, and warned of secondary sanctions on third-country buyers of Iranian oil ^[17][18].

4. Contradictions and What Decides Next

• Three live claims contradict: Trump says the Strait is open and mines are gone ^[2][3]; Iran says it will not open immediately and bars warships ^[3]; a White House official told reporters there is no negotiation scheduled and the Strait "remains open" ^[3]. The Russian-source ceasefire consensus is single-source and contradicted by the same day's White House read ^[3].
• The August 17 expiration of the original 60-day US-Iran negotiating window passed without a formal agreement, leaving a "neither war nor peace" equilibrium that is now being routed through Oman and Pakistan rather than direct talks ^[19][10].
• Falsifiable test over the next 60 days: a permanent corridor agreement versus a re-mining incident versus a single Hormuz attack on a US-protected tanker. Each path is open. Iraq loadings and southern-corridor traffic are the cleanest read on whether the reopened lane actually clears the risk premium ^[3][13][14].
• Source quality: items ^[3] and ^[19] are aggregators; the Russian-source ceasefire claim, the "500 ships / 2%" throughput, and the Hormuz Monday transit count are wire- or social-relayed and should be treated as one source deep. Iraq loadings are corroborated by independent satellite and shipping data ^[13][14].