US tightens sanctions on Iran, targets global oil and petrochemical trading network

The United States has announced a fresh set of sanctions aimed at companies, vessels, and commercial networks allegedly involved in the trade and transportation of Iranian crude oil and petrochemical products, further increasing pressure on Iran’s energy sector.

The new measures, introduced by the US Department of State and the US Treasury Department, mainly focus on what American authorities describe as Iran’s “shadow oil economy.” Washington said the objective is to restrict revenue channels connected to Iran’s strategic and military-linked institutions.

Under the latest sanctions package, several companies accused of supporting the marketing, purchase, and sale of Iranian-origin petrochemical products in international markets have been added to the restrictions list.

US officials stated that Iran’s petrochemical sector has become an increasingly important source of export revenue as long-standing sanctions continue limiting the country’s crude oil sales. By targeting traders, intermediaries, and executives associated with petrochemical transactions, the United States is seeking to tighten monitoring of supply chains moving Iranian cargoes into global markets.

The sanctions also include multiple vessel management companies and several ships allegedly used for transporting Iranian oil and petrochemical products.

According to US authorities, some vessels were involved in deceptive shipping practices such as concealed routing operations and complicated ownership arrangements designed to hide cargo origin and destination details.

Washington believes these maritime networks play a major role in maintaining Iranian energy exports despite existing restrictions. The latest sanctions are intended to increase operational and compliance risks for shipping companies and traders involved in Iranian-linked cargo movements.

In a parallel move, the US Treasury Department also imposed sanctions on a separate oil sales network accused of facilitating the movement of tens of millions of barrels of Iranian crude oil.

American officials alleged that proceeds generated through these oil transactions benefit Iran’s military-related organizations, including the Islamic Revolutionary Guard Corps (IRGC).

The latest sanctions signal a further escalation in US efforts to restrict Iranian oil and petrochemical exports, potentially creating additional uncertainty for regional trade flows, shipping activity, and global energy markets.

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