Keep updated
Get in touch
| Type | Vessel | [sources] | |||
|---|---|---|---|---|---|
| Name | GUANYIN · Guanyin | [sources] | |||
| Country | Liberia | [sources] | |||
| Build Date | [sources] | ||||
| Call Sign | A8FD8 | [sources] | |||
| Deadweight Tonnage | 109857 | [sources] | |||
| Description | The tanker is affiliated with Silver Tetra Marine Co. (Marshall Islands), which was sanctioned by the United States in July 2025 for providing financial, material, or technological support, as well as goods or services, to the sanctioned Mohammad Hossein Shamkhani – the son of Ali Shamkhani, the chief political advisor to Iran’s Supreme Leader. Mohammad Hossein Shamkhani leverages his father’s political influence to corrupt senior Iranian regime officials to build and operate a vast fleet of tankers and container ships. This fleet transports oil and petroleum products from Iran and russia, as well as other cargoes, to customers around the world, generating tens of billions of dollars in profits. His shipping empire consists of a large fleet of vessels, ship management firms, and front companies that launder billions of dollars in proceeds from global sales of Iranian and russian crude oil and petroleum products, primarily to buyers in China. The network takes significant steps to conceal its operations and obscure its connections to the Shamkhani family, Iran, and russia. On July 30, 2025, the United States imposed sanctions on the tanker IMO 9299707. The vessel is also affiliated, through the sanctioned company Sun Ship Management (UAE), with the sanctioned PJSC Sovcomflot (ПАО "Совкомфлот") – the largest state-owned shipping company in russia responsible for servicing and supporting offshore hydrocarbon production, as well as transporting russian oil, petroleum products, and liquefied gas. The primary charterers of Sovcomflot’s vessels are russia’s largest oil and gas companies and traders. Sovcomflot is involved in major russian oil and gas projects, including Sakhalin-1, Sakhalin-2, Varandey, Prirazlomnoye, Novy Port, and Yamal LNG, among others. Since October 24, 2025, the EU has imposed sanctions on the vessel. | [sources] | |||
| Flag | Liberia | [sources] | |||
| Gross Registered Tonnage | 57248 | [sources] | |||
| IMO Number | IMO9299707 | [sources] | |||
| MMSI | 636012383 | [sources] | |||
| Previous name | NS Concept | [sources] | |||
| Type | 20 · Crude Oil Tanker | [sources] | |||
| Source link | eur-lex.europa.eu · home.treasury.gov · sanctionssearch.ofac.treas.gov | [sources] | |||
| Last change | Last processed | First seen | |||
IMO number: 9299707
Transport crude oil or petroleum products as listed in Annex XXV or mineral products that originate in Russia or are exported from Russia and practice irregular and high-risk shipping practices as set out in the International Maritime Organisation General Assembly resolution A.1192(33).
The primary United States' sanctions list, specially designated nationals (SDN) part.
United States · OFAC
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
Supplemental list of people, companies, and organizations sanctioned for involvement in Russia's invasion of Ukraine.
European Union · Council
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
Sponsors and accomplices of Russian armed aggression against Ukraine.
Ukraine · GUR
Switzerland manages a sanctions lists with a high degree of detail on the individuals that are subject to it's embargoes
Switzerland · SECO
The record has been enriched with data from the following external databases:
US OFAC press releases that provide context and details related to sanctioned entities.
External dataset · United States · OFAC
ofac-54912 · ch-seco-99613 · ua-ws-vessel-596 · eu-sancmap-79b5ccf742166e08f93e1bf3104450671fd2ddcf · NK-8LXaxxy6VeobA9FhzZijk8 · eu-oj-53b0ff0a2528f696135ffdcf4f1639e9896064c8 · ofac-pr-0f93f8bec93f3a6fe6c2d3dfdbe2fcf9c9a9b874For experts: raw data explorer
OpenSanctions is free for non-commercial users. Businesses must acquire a data license to use the dataset.
| Sanctions | |||||
|---|---|---|---|---|---|
| Country | Authority | Program | Start date | End date | |
| Switzerland | State Secretariat for Economic Affairs | - | |||
| Documents | ||
|---|---|---|
| Document | Date | |
| Treasury Takes Massive Action Against High-Profile Iranian Network | ||
| Linked from | ||||
|---|---|---|---|---|
| Subject | Role | Start date | End date | |
| American Steamship Owner P&I association | P&I Club | - | - | |
| SILVER TETRA MARINE CO. Sanctioned entity | commerce_manager | |||
| Owners | ||||
|---|---|---|---|---|
| Owner | Percentage held | Start date | End date | |
| SILVER TETRA MARINE CO. Sanctioned entity | - | - | - | |
| Ukraine | ГУР МО України | Vessels involved in the transportation of weapons, stolen Ukrainian products and in the circumvention of sanctions | - | - |
| United States | Office of Foreign Assets Control | Iran Sanctions | - | - |
| European Union | Council of the European Union | EU Designated Vessels (Council Regulation 833/2014) | - |
| - |
| Tarabya Logistics Ltd Sanctioned entity | security_manager | - |
| SILVER TETRA MARINE CO. Sanctioned entity | - | - |