OFACPosts by

Trump and Xi met in Beijing on 14-15 May, the first US state visit to China since 2017. The joint position supports reopening the strait and rejects ‘a charge for transiting through it.’ This post reads what the phrase means against UNCLOS Article 26 and the Suez/Panama services-fee precedent, separates the rejection of the Iranian sovereignty-asserting toll from the question of how a working authority recovers its institutional cost, and identifies where the summit narrows the negotiating space.

On 2 May 2026, China’s Ministry of Commerce issued the first formal prohibition order under the 2021 Blocking Rules, barring compliance inside China with US sanctions on five Chinese refineries buying Iranian crude. The order hardens the buyer leg of the four-leg toll architecture against further OFAC erosion. This post reads what changes, what doesn’t, and why a treaty-backed transit authority can coexist with the bifurcated buyer-side legal environment by design.

On April 30, three news items combined: the US carrier in theatre is expected to leave with the war’s cost approaching $25B; Trump is being briefed by CENTCOM Admiral Brad Cooper on options; and the Senate failed to advance an Iran War Powers Resolution for the sixth time. Standing military commitment is being scaled back. Institutional commitment — blockade, sanctions, payment rules — is being scaled up. Both sides are recognising that institutions outlast operations.

The US Treasury has stated this week that payments to Iran or the IRGC for Hormuz passage, direct or indirect, are not authorised for US persons or US banks. Walked through at desk level for tanker owners, charterers, correspondent banks, and refiners, the rule closes the dollar payer set for the current toll arrangement. The four-leg architecture of the regime is now complete from the US compliance side.

On 25 April OFAC sanctioned Hengli Petrochemical (Dalian), China’s second-largest teapot refinery, for buying Iranian crude, plus 40 shadow-fleet vessels, plus the named Iranian Armed Forces General Staff oil-sales arm Sepehr Energy. Combined with yesterday’s $344M USDT freeze, three of the four legs of the Hormuz toll architecture have been entity-mapped in 48 hours. The Suez and Panama models have no off-grid leg because they are treaty-backed.

On 24 April the US Treasury and Tether jointly executed a 344 million dollar USDT freeze across two Tron wallets associated with Hormuz transit-fee receipts. The action is less a political moment than an architectural one. It reveals what kind of payment channel a non-treaty toll regime can sustain, and why a treaty-backed authority chooses conventional banking instead.

Phemex analysis confirms the Strait of Hormuz is now a Bitcoin and stablecoin tollbooth. One dollar per barrel, up to 2 million per VLCC, settled in USDT on Tron and Bitcoin on Lightning. Public estimates run to 7.5 billion dollars a year at full scale. The infrastructure is operational. The question is not whether tolls can be collected. Iran has proven they can. The question is under what governance.