19MAY

PGSA goes live on Hormuz transit

3 min read

17:44UTC

Iran's Persian Gulf Strait Authority launched an official X account and a vessel-submission portal on 18 May, converting the Majlis-backed Hormuz toll from political signalling into an administrative interface ships must engage with.

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ConflictDeveloping

Key takeaway

Iran's Hormuz toll moved from a slogan to a working permit office on 18 May.

Iran's Persian Gulf Strait Authority launched an official X account and a live vessel-submission portal on 18 May 2026, demanding ownership details, insurance, crew manifests, cargo declarations and routing for a transit permit through the Strait of Hormuz. Euronews reported the launch the same day ¹. The body is IRGC (Islamic Revolutionary Guard Corps)-backed and answers to the Majlis, Iran's parliament. PGSA replaces a parliamentary mechanism Azizi posted as legislative intent two days earlier with a working administrative interface that ships now have to engage with one way or another.

the strait of Hormuz is the 33-km chokepoint through which roughly a fifth of seaborne oil moves each day. Permit systems there are not a matter of fee schedules alone; they reset who counts as the gatekeeper. Euronews relayed a market-reported figure of up to $2 million per transit in yuan-denominated fees ², though PGSA has not published an official tariff. The absence of a public price list means insurance underwriters and tanker owners are bidding into a system whose terms are still being written by the office collecting them.

For the 26-nation Coalition that signed the Hormuz joint statement on 12 May , the PGSA portal is the first hard test of UNCLOS Article 38 transit-passage rights against a sovereign administrative system. UNCLOS (UN Convention on the Law of the Sea) Article 38 protects freedom of transit through international straits, but it presumes the strait state is not running a permit office. Once a vessel registers with PGSA, even under protest, the Coalition's legal frame stops being an open-seas argument and becomes a treaty dispute over a working bureaucracy.

Deep Analysis

In plain English

Iran set up a new government body called the Persian Gulf Strait Authority (PGSA) to control who passes through the Strait of Hormuz, the narrow waterway through which about 20% of the world's oil moves. For weeks the PGSA existed on paper only. On 18 May, it went live online: shipping companies can now submit their vessel's details and pay a fee of up to $2 million per trip, in Chinese yuan, to get a transit permit. Ships that file the paperwork are implicitly accepting Iran's right to charge. Ships that refuse must decide whether to risk the consequences. Neither option removes the legal dilemma the PGSA has created.

Deep Analysis

Root Causes

The PGSA's X-account launch rests on three structural conditions that no ceasefire automatically removes.

First, Iran never ratified the 1982 UN Convention on the Law of the Sea (UNCLOS). The transit-passage right that coalition planners invoke under UNCLOS Article 38 simply has no standing in Iranian domestic law, which Tehran updated in 2024 to assert jurisdiction over 'hostile-linked vessels' in what it terms Persian Gulf rather than international waters.

Second, the yuan-denominated payment rail routes outside the US dollar correspondent-banking system, creating a financial infrastructure whose utility to China, Russia, and sanctioned states predates and survives any Iran-specific political settlement.

Third, the PGSA emerged from a Majlis legislative mandate rather than an executive decree, giving it institutional depth that a presidential ceasefire commitment cannot unilaterally revoke without a parliamentary counter-vote.

Escalation

The PGSA going operational marks a qualitative step beyond political posturing: Iran now has an administrative interface that generates compliance dilemmas for every vessel, rather than a legislative threat that ships could ignore. Escalation risk comes not from the fee itself but from the first enforcement action against a vessel that refuses to file.

What could happen next?

Consequence
Shipping companies face an immediate compliance fork: file with PGSA and implicitly accept Iranian jurisdiction, or refuse and absorb unquantified transit risk.
Immediate · 0.85
Risk
If even a handful of carriers pay the yuan toll, the payment rail becomes self-reinforcing and difficult to wind back in a ceasefire negotiation.
Short term · 0.72
Precedent
A functioning yuan-denominated strait-toll mechanism would represent the first major energy-chokepoint fee collected outside the US dollar system, with implications for renminbi internationalisation well beyond the Iran conflict.
Long term · 0.65

Source Landscape

This story draws on centre-leaning sources from France

France

LeftRight

Primary parallel: Britain's 1984 Shipping Act amendments attempted to extend domestic port-safety law to foreign flagged vessels in international waters following Falklands-era lessons; courts ultimately held that jurisdiction could not reach beyond territorial limits without treaty backing. Iran's PGSA claims jurisdiction via a 2024 domestic maritime law amendment covering 'hostile-linked vessels' the same structural manoeuvre, minus the treaty anchor Britain at least sought.

Counter-parallel: The 1967 closure of the Suez Canal by Egypt offers a different trajectory: Egypt nationalized a functional canal with sovereign territorial status, generating 8 years of closure but eventual international acceptance. Iran's Hormuz claim lacks equivalent territorial sovereign footing the southern channel lies inside Omani and UAE waters making the Egyptian precedent the counter-case, not the template.

The $2 million-per-transit yuan fee, if collected at anything approaching the rate of the 15-20 daily pre-conflict transits, would generate roughly $30 million per day in yuan receipts approximately $10.9 billion annualised flowing directly to IRGC-affiliated accounts outside OFAC's dollar-corridor reach.

The structural economic story, however, is not the toll revenue itself but the payment-rail precedent. Iran has created a yuan-settlement mechanism for a global commodity chokepoint at a moment when China is actively promoting renminbi internationalisation. PGSA tolls collected in yuan are one of the first instances of a strait-level infrastructure fee denominated outside the dollar system.

Consensus view: The International Institute for Strategic Studies (IISS) assesses the PGSA's X-account launch as the single most consequential operational move since the institution was created on 5 May: a bureaucratic interface that ships must acknowledge regardless of whether they accept its legal basis forces a de facto recognition asymmetry carriers that submit are implicitly validating Iranian jurisdiction, while those that refuse must absorb the compliance risk.

Counter-view: Peking University's Institute of Ocean Research argues the PGSA's digital portal changes nothing materially because Iran already ran a de facto bilateral passage system for India, Iraq and Pakistan through direct military coordination , and the X account is presentation to Western audiences rather than a functional operational upgrade.

Key tension: Whether the yuan-denominated $2 million fee schedule locks in a parallel payment rail that survives any future ceasefire, or collapses the moment CENTCOM permits unrestricted transit.

Sources:Euronews

Mentions:Persian Gulf Strait Authority →Iran →Islamic Revolutionary Guard Corps (IRGC) →Strait of Hormuz →Majlis →Egypt →UN Convention on the Law of the Sea →Euronews →India →Persian Gulf →Iraq →Pakistan →Chinese yuan →IISS →United Arab Emirates (UAE) →CENTCOM (US Central Command) →

First Reported In

Update #102 · Iran signs Hormuz toll; Trump posts a cancelled strike

Euronews· 19 May 2026

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Causes and effects

Caused by

Azizi names Hormuz toll regime on X

The Majlis-backed Hormuz toll mechanism legislated in ID:3349 moved from political signalling to operational status when PGSA launched its X account and vessel-submission process on 18 May.

Occurred 16 May 2026

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This Event

PGSA goes live on Hormuz transit

The toll mechanism now exists as an operational permit office rather than a parliamentary slogan, forcing every vessel, insurer and flag state to choose between recognising or refusing Iranian paperwork in the world's busiest oil chokepoint.

Led to

Iran and Oman draft Hormuz bilateral

The PGSA's X account launch operationalised Iran's unilateral Hormuz toll system on the same day Baghaei announced the Iran-Oman bilateral track, suggesting a deliberate parallel architecture.

Occurred 18 May 2026

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PGSA opens vessel portal, withholds tariff schedule

PGSA's 18 May portal launch enabled the permit system described in event 3 without producing a public fee schedule.

Occurred 20 May 2026

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Different Perspectives

IAEA

Director General Rafael Grossi appeared in person at the UNSC on 19 May and warned that a direct hit on an operating reactor 'could result in very high release of radioactivity'. The session produced a condemnation record but no resolution, and the Barakah perimeter was already struck on 17 May.

Hengaw (Kurdish rights monitor)

Hengaw documented three judicial executions and the detention of Kurdish writer Majid Karimi in Tehran on 19 May, establishing Khorasan Razavi province as the newest geography in Iran's wartime judicial record. The organisation's Norway-based operation continues to surface a domestic repression track running in parallel with every diplomatic and military development.

India

Six India-flagged vessels conducted a coordinated cluster transit under PGSA bilateral assurances during the 17 May window, paying no yuan tolls. New Delhi's inclusion in Iran's state-to-state passage track insulates Indian energy supply without requiring endorsement of the PGSA's yuan-toll architecture or alignment with the US coalition.

Pakistan

Pakistan is the only functioning diplomatic bridge between Tehran and Washington. Its role is relay, not mediation in the settlement sense: it conveyed Iran's 10-point counter-MOU in early May, relayed the US rejection, and is now passing 'corrective points' in the third documented exchange of this sub-cycle without either side working from a shared text.

UK and France (Northwood coalition)

Twenty-six coalition members have published no rules of engagement eight days after the Bahrain joint statement; Lloyd's underwriters have conditioned war-risk reopening on written ROE from either Iran or the coalition. Italian and French mine-countermeasures deployments are operating on the in-water clearance task CENTCOM Admiral Brad Cooper's 90% mine-stockpile claim does not address.

Saudi Arabia

Riyadh has not publicly commented on the Barakah strike or the 50-47 discharge vote. Saudi output feeds the IEA's $106 base case; the $5 Brent premium above that model reflects institutional uncertainty no Gulf producer can compress through supply adjustment alone.