The United States has imposed fresh sanctions on a Chinese “teapot” refinery over its dealings in Iranian oil, as part of President Donald Trump’s broader campaign to tighten pressure on Iran’s “shadow oil fleet.” The move, announced by the US Treasury Department, targets a privately run Chinese refiner that has been importing Iranian crude in violation of Washington’s sanctions framework. US officials say the refinery has handled or facilitated the delivery of Iranian oil worth hundreds of millions of dollars, helping Tehran circumvent the US‑led financial and maritime controls on its energy exports. The targeted firm is the third such “teapot” refinery in China to be sanctioned under the Trump administration’s “maximum pressure” campaign against Iran’s oil‑revenue stream.
In parallel, the Trump administration has ramped up sanctions on the network of ships and companies that make up what Washington calls Iran’s “shadow fleet.” The US has already blacklisted multiple vessels, owners, operators and captains linked to clandestine Iranian oil shipments, and has warned that firms or nations dealing with these entities risk penalties. Officials argue that the revenue from these shadow‑fleet oil sales supports Iran’s security‑related expenditure, including funding for regional proxies and weapons programmes. The latest refinery sanction reinforces the message that Beijing’s independent refiners, even if not state‑owned, will be punished if they continue to buy or refine Iranian crude.
The action comes amid the wider US‑imposed naval blockade around Iranian ports and the Strait of Hormuz, under which American and allied forces are restricting Iranian‑bound and Iranian‑export oil tankers. China, Tehran’s largest crude‑oil customer, faces growing exposure as US sanctions and the blockade together squeeze Iran’s ability to move oil to Chinese ports. The Treasury’s move is being framed as a calibrated escalation aimed at cutting off one of Iran’s last remaining commercial‑financial channels, while signalling to other Asian‑Pacific refiners that similar deals will not be tolerated.