US Sanctions 12 Entities Routing Iranian Oil to China

The U.S. Treasury Department’s Office of Foreign Assets Control designated 12 entities on Monday for facilitating the sale and shipment of Iranian oil to China on behalf of the Islamic Revolutionary Guard Corps, as Treasury Secretary Scott Bessent tied Beijing’s energy purchases directly to terrorism financing.

The designations targeted four Hong Kong-based companies, four UAE-based firms, and one Omani entity, all accused of operating as front companies to move Iranian crude in defiance of existing U.S. sanctions. The action marks the second major OFAC enforcement round targeting the Iran-China oil corridor in recent weeks, following a prior round of designations that covered Iranian weapons procurement networks stretching into China and Belarus.

“Iran is the largest state sponsor of terrorism, and China has been buying 90 percent of their energy, so they are funding the largest state sponsor of terrorism,” Bessent said in a statement accompanying the designations.

The Sanctions Architecture

OFAC’s action targeted the layered network of intermediaries that allow Iranian crude to reach Chinese refiners while obscuring its origin. The designated entities include shipping brokers, vessel operators, and trading companies registered across jurisdictions that have historically offered a degree of regulatory distance from U.S. enforcement reach.

For readers less familiar with how sanctions enforcement works in practice, a plain-language explainer on OFAC designations covers the legal mechanics — including how secondary sanctions exposure can reach non-U.S. companies that continue doing business with designated parties.

The new round compounds pressure on a network that has grown substantially since the Trump administration reimposed maximum-pressure sanctions following its withdrawal from the JCPOA. Independent shipping analysts have estimated that Iran has been moving well over one million barrels per day to China, with much of that volume handled through the kind of front-company structures OFAC targeted Monday.

Beijing’s Position

The sanctions landed as President Trump arrived in Beijing for a two-day summit with President Xi Jinping, with Iran’s oil trade and the ongoing Strait of Hormuz stalemate among the top agenda items. The timing was not coincidental — U.S. officials have used prior sanctions rounds to sharpen negotiating leverage ahead of direct diplomatic contact.

China has consistently refused to recognize U.S. unilateral sanctions as binding on Chinese entities, and Beijing has previously instructed its state-owned banks to disregard OFAC designations that lack UN Security Council backing. That posture makes enforcement against Chinese end-buyers difficult in practical terms, though secondary sanctions can still cut off designated entities from the U.S. dollar system and correspondent banking access.

The broader Russia-China-Iran alignment has complicated U.S. leverage: Beijing calculates that deepening energy dependence on Tehran is strategically preferable to acquiescing to Washington’s unilateral sanctions regime, particularly as the two countries have expanded yuan-denominated oil settlement arrangements that reduce dollar exposure.

Ceasefire Collapse and Market Pressure

The sanctions action came amid a deteriorating diplomatic picture on the Iran nuclear and Hormuz file. Trump on Sunday called Iran’s ceasefire counter-proposal “a piece of garbage” and declared the ceasefire to be on “life support,” language that sent Brent crude to $110.43 per barrel on Monday as traders priced in elevated risk of a sustained blockade or military escalation.

CENTCOM has confirmed that 62 commercial vessels have diverted from their planned routes since the Iranian blockade began, rerouting around the Strait of Hormuz at significant cost in both time and fuel. Lloyd’s and other marine insurers have imposed war-risk surcharges on Hormuz transits that have effectively priced smaller operators out of the route.

The USS Alaska, an Ohio-class ballistic missile submarine, was dispatched to Gibraltar in what U.S. defense officials described as a signaling move — one of several force posture adjustments the Pentagon has made in recent weeks as the Hormuz situation has remained unresolved.

Trump’s rejection of the Iranian counter-proposal has left the diplomatic track without a clear next step. Oman has been serving as an informal back-channel, but the breakdown in the ceasefire framework removes the immediate pressure-release mechanism that both sides had been relying on to manage escalation risk.

The Summit Backdrop

The Trump-Xi summit carries a wider portfolio — trade balances, Taiwan, semiconductor controls — but the Iran file has moved to the center of the agenda in a way that was not originally anticipated when the meeting was scheduled. U.S. negotiators are pressing Beijing to reduce its Iranian oil purchases as a concrete deliverable, framing it as both a sanctions-compliance matter and a counter-terrorism obligation given Bessent’s public formulation.

Beijing has shown little public appetite for accepting that framing. Chinese foreign ministry spokespeople have consistently characterized Iran-China energy trade as a legitimate bilateral economic relationship that predates U.S. sanctions and falls outside their jurisdiction.

Whether the summit produces any enforceable agreement on Iranian oil — or merely a restatement of established positions — will have direct consequences for OFAC’s ability to impose real costs on the oil-routing network it designated Monday. Sanctions designations against front companies have a limited shelf life if the underlying commercial relationship between Beijing and Tehran remains intact and well-funded.

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Brent crude price and CENTCOM diversion figures via Fortune and Al Jazeera liveblog. Treasury designation details via U.S. News.