Search OpenSanctions

Advanced

TASSOS

Shadow fleet · Person of interest · Sanctioned entity
TypeVessel[sources]
NameTASSOS[sources]
CountryLiberia[sources]
Build Date[sources]
Call Sign5LKI6[sources]
Deadweight Tonnage156436[sources]
DescriptionThe tanker has been involved in the export of russian crude oil / petroleum products to third countries since February 2023. In February 2023, the vessel was sold by Frontline (New York, USA, majority owned by shipping billionaire John Fredricksen) to an unknown company, Bay Global Maritime Inc, registered in Liberia, which was registered as the owner and commercial manager of the vessel. In June 2023, the Turkish company Pier Denizcilik Ve Ticaret Ltd, incorporated on May 26, 2023, became the ship's safety manager. Pier Denizcilik Ve Ticaret Ltd managed the safety of two oil tankers affiliated with the sanctioned PJSC Sovcomflot, the largest state-owned shipping company in russia for servicing and supporting offshore hydrocarbon production, transportation of russian crude oil, petroleum products, and liquefied gas. Since September 2024, the management of the tanker has been transferred to The Zulu Ships Management & Operation - Sole Proprietorship LLC (UAE), which was subject to USA sanctions on July 30, 2025. The Zulu Ships Management & Operation - Sole Proprietorship LLC is part of a network of companies controlled by Mohammad Hossein Shamkhani, son of Ali Shamkhani, Chief Political Advisor to the Supreme Leader of Iran. Mohammad Hossein Shamkhani uses corruption through his father's political influence at the highest levels of the Iranian regime to build and operate a vast fleet of tankers and container ships. This network transports oil and petroleum products from Iran and russia, as well as other cargoes, to buyers around the world, generating tens of billions of dollars in profits. The Mohammad Hossein Shamkhani network consists of a huge fleet of ships, ship management firms and front companies that launder billions of dollars in profits from global sales of Iranian and russian crude oil and petroleum products, mostly to buyers in China. The network takes significant steps to disguise its operations and obfuscate its ties to the Shamkhani family, Iran, and russia. On July 30, 2025, USA imposed sanctions on the tanker IMO 9408695. Since October 24, 2025, the EU has imposed sanctions on the vessel.[sources]
FlagLiberia[sources]
Gross Registered Tonnage83562[sources]
IMO NumberIMO9408695[sources]
MMSI636022764[sources]
Past FlagsMarshall Islands · Panama[sources]
Previous nameBay Global · Front Balder · Roxen Star · Seasalvia[sources]
Type20 · Crude Oil Tanker[sources]
Source linkeur-lex.europa.eu · home.treasury.gov · sanctionssearch.ofac.treas.gov[sources]
Last changeLast processedFirst seen

Relationships

Data sources

US OFAC Specially Designated Nationals (SDN) List35,501

The primary United States' sanctions list, specially designated nationals (SDN) part.

United States · OFAC

EU Sanctions Map1,311

The EU Sanctions Map is a visualisation of EU sanctions policy. It includes a broader set of policies and entities than the EU consolidated sanctions list.

European Union · Council

EU Council Official Journal Sanctioned Entities2,884

Supplemental list of people, companies, and organizations sanctioned for involvement in Russia's invasion of Ukraine.

European Union · Council

US Trade Consolidated Screening List (CSL)23,402

The Consolidated Screening List (CSL) is a list of parties for which the United States Government maintains restrictions on certain exports, re-exports, or transfers of items.

United States · ITA

Ukraine War and Sanctions5,428

Sponsors and accomplices of Russian armed aggression against Ukraine.

Ukraine · GUR

External databases

The record has been enriched with data from the following external databases:

US OFAC Press Releases3,520

US OFAC press releases that provide context and details related to sanctioned entities.

External dataset · United States · OFAC


Source data IDs: ua-ws-vessel-485 · ofac-pr-b3f2b18d66264e5e6466c3e54c2598db97e3ac15 · NK-dhVWZhVQyt3oyU5S8RRQZX · eu-sancmap-803a8770bae37d449f424c315c8825298dc705b9 · ofac-54815 · ua-ws-d5f12f2aa0ac8ad274c6babb7922c1b728d26a77 · eu-oj-e4bb233956940a268cdf400fc2d91a63eda73759

For experts: raw data explorer