The CMA CGM Kribi is a 5,500-TEU container ship, flagged in Malta, owned by CMA CGM — the French shipping and logistics giant that is the world's third-largest container line. On April 2, 2026, it crossed the Strait of Hormuz. MarineTraffic vessel tracking data confirmed the passage, per Bloomberg, Al Jazeera, Reuters, and WorldCargoNews. It is the first Western-linked vessel documented to have made the transit since Iran effectively closed the strait to non-Iranian traffic after the war began on February 28.
The ship's AIS transponder displayed the message "Owner France" rather than a destination, according to WorldCargoNews, which reported the crossing based on MarineTraffic data. The Guardian reported that the Kribi "switched on its transponder near the coast off Dubai on March 28 before passing through the strait with cargo." The ship sailed eastbound from waters off Dubai on Thursday afternoon, per Euronews.
The same day, Al Jazeera confirmed additional passages: three Oman-linked tankers and a Japanese-owned gas carrier also crossed. None of these is a large-volume crude oil tanker — the class of vessel whose transit would most directly affect global energy markets. But the fact that five non-Iranian vessels made the passage represents a documented shift from the near-total shutdown that had persisted for five weeks.
The Iranian Government Letter
On April 4, two days after the CMA CGM Kribi's crossing, Iran's semi-official Tasnim news agency published an internal government letter that provides important context for what happened. The letter, dated March 1 and sent by Acting Deputy Minister of Agriculture Hooman Fathi to the head of Iran's Ports and Maritime Organization, read: "Permission is hereby granted for the transit of vessels carrying essential goods — especially basic commodities and livestock inputs — through the Strait of Hormuz," according to CNN's citation of the document.
Reuters confirmed the letter's existence and content on April 4: "Iran has authorised the passage of vessels carrying essential goods to its ports through the Strait of Hormuz, according to a letter cited by Iran's Tasnim news agency on Saturday." Xinhua also confirmed the document, noting it was "a directive sent by Iranian acting Deputy Minister of Agriculture Hooman Fathi to the leadership of Iran's Ports and Maritime Organization."
Several things are notable about this letter. First, it is dated March 1 — one day after the war began. This means Iran appears to have maintained a private carve-out for essential goods transit from near the start of the war, even as it publicly declared the strait closed. Second, the letter specifically requires "coordination with authorities" for passage, meaning Iran is not simply opening the strait but selectively permitting specific cargo categories under its own control. Third, the letter's publication via Tasnim on April 4 — 48 hours before Trump's April 6 deadline — appears deliberate. Publishing it now, rather than keeping it internal, signals to the outside world that Iran is not enforcing a total blockade.
What Reuters Said About the Signal
Reuters' reporting on the CMA CGM Kribi crossing offered the most direct interpretation of what the transit signals. The Reuters headline read: "French-owned CMA CGM container ship passes Strait of Hormuz, data shows." The article stated that the passage is "a sign that Iran may not consider France a hostile nation."
That framing matters. France, unlike the United States, Israel, the United Kingdom, and Germany, has maintained a relatively neutral diplomatic posture on the Iran war. France was one of the three permanent members — along with Russia and China — that blocked the original Arab-backed UN Security Council resolution authorizing force to reopen Hormuz. France's objection was to the "use of force" language, not to the resolution's goal. From Iran's perspective, France may represent a category of Western nations that did not actively participate in or facilitate the war.
If that is the calculus, it would explain the selective nature of the passage. The Kribi is not an American-affiliated ship. It is not Israeli-chartered or British-flagged. It is French-owned and Malta-flagged — a combination that may have allowed it to present itself as acceptable under whatever criteria Iran is privately using to decide which vessels can transit.
What "5,500 TEU" Actually Means
The Kribi's capacity of 5,500 TEU (twenty-foot equivalent units) places it in the medium-large container ship category. For context, the largest container ships carry over 24,000 TEU. The Kribi is a meaningful vessel — it can carry thousands of shipping containers of manufactured goods, food, medicine, and raw materials — but it is not a VLCC (very large crude carrier) of the sort that moves major oil volumes through the strait.
The distinction is important. The global energy market crisis created by the Hormuz closure is primarily driven by crude oil and LNG not flowing through the strait. A container ship carrying general cargo passing through the strait does not materially relieve oil supply constraints. It does signal that Iran is willing to allow at least some non-energy cargo to move, which has modest implications for the food security and supply chain disruptions that have been building in Asia and Europe over five weeks.
For global oil markets to normalize, Iran would need to allow VLCCs and LNG carriers to transit freely. That has not happened. The CMA CGM Kribi's crossing — and the three Omani tankers and Japanese gas carrier — are steps, not solutions.
The April 6 Deadline Context
Trump's April 4 Truth Social post gave Iran 48 hours before "all Hell will reign down on them," with an April 6 deadline to reopen Hormuz or face strikes on energy infrastructure. The CMA CGM Kribi crossing occurred on April 2 — two days before that post — and the Iranian government letter was published on April 4, the same day as the ultimatum.
The sequence creates a plausible interpretation: Iran may be using the selective passage of non-hostile Western vessels and the published carve-out for essential goods as its response to the deadline pressure — signaling partial flexibility without formally conceding to the ultimatum. This is consistent with Iran's broader diplomatic posture throughout the war: rejecting American demands publicly while making tactical adjustments quietly.
Whether Trump accepts this as sufficient to avoid energy infrastructure strikes on April 6 is the central question of the next 48 hours. His post made no mention of selective passage or humanitarian carve-outs. It demanded the strait be open, full stop. If his threshold is a total reopening, the Kribi crossing and the essential goods letter do not meet it. If his threshold can be met by a demonstrated willingness to allow passage to non-hostile parties, these signals might be enough to produce another extension.
What the Shipping Industry Is Watching
The shipping industry's response to the war has been to halt nearly all commercial traffic through the strait, park vessels at anchor, and wait. Insurers have suspended or dramatically repriced coverage for Gulf transit. The practical barrier to full reopening is not only Iranian permission — it is also the willingness of commercial vessels to trust that permission and actually make the passage.
The Guardian reported that the Kribi switched its transponder on near Dubai before the crossing, suggesting the transit was not covert — it was visible to all parties. That Iran allowed a visible, trackable Western ship to cross without incident is itself a signal to the broader shipping market: passage may be possible for the right vessels carrying the right cargo under the right flag.
Whether that signal is sufficient to move the 20,000 or more seafarers stranded in the Gulf — a figure reported earlier in the war — and the dozens of vessels anchored and waiting is a different question. One crossing does not reopen a strait. It demonstrates a crack, not an open door.
The Numbers
- April 2 — CMA CGM Kribi transits Hormuz, confirmed by MarineTraffic data per Bloomberg, Reuters, Al Jazeera
- 5 — Total non-Iranian vessels confirmed crossing around the same period (Kribi plus three Oman-linked tankers and one Japanese gas carrier), per Al Jazeera
- 5,500 TEU — Capacity of the CMA CGM Kribi (container ship, not crude oil carrier)
- March 1 — Date of Iran's internal letter permitting essential goods vessels to transit, per Tasnim/Xinhua/CNN
- April 4 — Date the letter was published publicly via Tasnim, 48 hours before Trump's deadline
- April 6 — Trump's deadline for Hormuz reopening before threatened energy infrastructure strikes
- 35+ days — Duration of the near-total Hormuz closure to Western commercial traffic before the Kribi crossing
The Bottom Line
The CMA CGM Kribi's crossing is the most significant development at the Strait of Hormuz since the war began — not because it restores normal shipping, but because it demonstrates that Iran is making selective, case-by-case decisions about which vessels can pass, rather than enforcing a total military blockade. The internal letter confirms this is policy, not accident. Iran is maintaining leverage while quietly allowing a humanitarian carve-out.
Whether this is enough to satisfy Trump's April 6 ultimatum, pause the threatened energy infrastructure strikes, and begin the process of genuine negotiation is what the next 48 hours will determine. The strait has its first documented crack. Whether that crack widens or slams shut again is now the most consequential open question of the war.