The administration of US President Donald Trump announced a broad package of economic sanctions targeting a major Chinese oil refinery along with some 40 shipping companies suspected of involvement in transporting Iranian oil, in a move that reflects a new escalation in the policy of pressuring Iran and its trade networks.

These sanctions would deny targeted entities access to the U.S. financial system, a severe blow to their ability to conduct international transactions, particularly in the energy and maritime transport sectors.

This move comes shortly before the anticipated summit between Donald Trump and Chinese President Xi Jinping, adding a sensitive political dimension to the economic escalation between Washington and Beijing.

The measures included a facility belonging to Hengli Petrochemical, one of the largest independent refineries in China, with a refining capacity of about 400,000 barrels per day, making its targeting a clear indication of the widening scope of US sanctions.

According to data from the US Treasury Department, the company has been accused of receiving Iranian oil shipments since 2023, generating revenues estimated at hundreds of millions of dollars, which are believed to have gone to support activities linked to the Iranian military.

In a related context, Treasury Secretary Scott Bisent confirmed that the US administration is prepared to expand the scope of sanctions by imposing secondary measures targeting banks and financial institutions in China, Hong Kong and other regions, should they continue to facilitate financial flows related to Iran.