Iran-Linked Shipping Network Faces New Designations Across Vessels and Service Firms

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The latest US designations reach beyond shipowners to the agents, corporate-services providers and vessels involved in moving Iranian commodities. For shipping businesses, the action puts attention on the service chain around cargoes: company structures, port calls, bunkering and vessel management.

The US Treasury announced the measures on October 21, 2026, naming a Greek-Panamanian law firm, five people linked to it, shipping firms in Singapore and Dubai, and nine vessels. The stated focus is services connected with exports of Iranian oil, liquefied petroleum gas, petrochemicals and steel. The announcement forms part of Operation Economic Outcast, launched in August with the stated aim of cutting Iran off from international financial and shipping services.

Corporate services and a seven-ship manager

Treasury said Karnakis and Karnakis established corporate structures for shipowners moving Iranian commodities worth hundreds of millions of dollars. The five individuals designated in connection with the practice extend the action to people linked to the firm, as well as to the business itself. The source does not name those individuals or detail their specific roles.

Roxette Maritime Shipping and Trading, based in Panama and Greece, was also designated. The company manages seven Panama-flagged bulk carriers and general cargo ships. Treasury said three of those vessels—Anemos, Gloris and Pride—carried cargoes of Iranian origin during the past year. The other four named ships are Destiny, Flamingo 1, Harmony and Prince.

The vessel list and the reported cargo movements make fleet-level due diligence relevant for parties assessing exposure. Ship managers, cargo interests and service providers may need to establish whether a named vessel, its manager or a related company appears in their records. The source provides no voyage dates, cargo quantities, ports of loading or discharge, or details of the commercial arrangements. Those specifics therefore cannot be inferred from the designation alone.

Agents and support vessels also named

Singapore-based Amigoz Singapore was designated over its role as port agent for a shipment of Iranian light crude and its provision of bunkering services to Zixuan, described as a shadow-fleet tanker. Treasury also connected Amigoz to networks associated with Iranian shipping figure Mohammad Hossein Shamkhani. The report does not identify the port, date, bunker supplier or volume involved.

Dubai-based Whales Shipping Line was designated for supporting Amigoz and acting as shipping agent for a company accused of arranging Iranian petrochemical purchases. Two UAE-flagged support vessels associated with the firm, Whales Diamond and Whales Pearl, were included in the action. This links the measures to operational support on shore and at sea, including agency work and vessels used to support shipping activity.

For freight and maritime teams, the case illustrates how exposure can arise through several points in a voyage’s support network. An agent may arrange port services, while a separate provider supplies fuel and a manager oversees the vessel. A company’s role in one part of that chain can therefore matter alongside the ship’s flag, manager and cargo history. The source does not describe new procedures or requirements for carriers and customers, so it does not establish what any particular company must change.

Financial links remain under scrutiny

The report also says US authorities are investigating a Greek bank over possible links with Iran. The bank was not identified, and no findings or timetable were provided. That inquiry signals that scrutiny is reaching financial intermediaries as well as maritime firms, but the available details do not show what transactions or services are under review.

The practical takeaway for companies handling vessels, cargoes or payments tied to these networks is to check counterparties and vessel records against the names in the action, then verify the specific relationships involved. The named vessels, firms and service roles offer the clearest starting points. Further detail on routes, cargoes, banking activity or individual responsibilities has not been reported.