What kind of ship is TASSOS?

TASSOS is an oil tanker sailing under the flag of Cameroon, built in 2009 by Jiangsu Rongsheng Heavy Industries. The vessel is 274 m long with a beam of 48 m and has a gross tonnage of 83,562.

Sanctioned vessel

TASSOS appears on the UK Sanctions List, the OFAC SDN list, the EU list of designated vessels and the Canadian autonomous sanctions list under Russia, IRAN-EO13902, Russia (Reg. 833/2014 Annex XLII). Verify at GOV.UK.

Every vessel on:UK Sanctions List OFAC SDN list EU list of designated vessels Canadian autonomous sanctions list

TASSOS

Oil tanker · Cameroon · built 2009 · AIS Class A

IMO9408695MMSI613442805Call signTJM53TLast AIS position Aug 5, 2026, 02:32 UTC

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In short

TASSOS (Oil tanker, Cameroon flag) was last seen on AIS on Aug 5, 2026, 02:32 UTC, at anchor, near Ambarli (Sea of Marmara). Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report. It appears on 4 sanctions lists (details below).

Vessel type: Oil tanker
Flag: Cameroon
Year built: 2009
Gross tonnage: 83,562
Size (length × beam): 274 m × 48 m
Registered owner: —

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Last reported position

received Aug 5, 2026, 02:32 UTC

Position: 40.9442° N, 28.764° E
Area: Sea of Marmara
StatusWhat do AIS statuses mean?: At anchor
Speed: 0 kn
Course: 336°
Heading: 314°

40.9442° N, 28.764° E

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Seadar detected no port call in the last 30 days.

Port calls are detected by Seadar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: TASSOS
IMO numberWhat is an IMO number?: 9408695
MMSIWhat is an MMSI?: 613442805
Call signWhat is a call sign?: TJM53T
Flag: Cameroon
Vessel type: Detailed type from EU MRV (THETIS-MRV) emissionsOil tanker
AIS ship type: Tanker
Gross tonnageGross tonnage vs deadweight: 83,562
Deadweight (DWT): Source: Wikidata, record Q86059800. Added to Seadar on September 23, 2026. Licence: CC0 1.0.156,436 t
Length overall: 274 m
Beam: 48 m
Year built: 2009

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Owner or operator (sanctions listing): Zulu Ships Management(not linked to a company record)
Source: UK Sanctions List (FCDO) · reported · confidence 0.7 · retrieved Oct 1, 2026
Builder: Jiangsu Rongsheng Heavy Industries
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Seadar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Jun 12, 2026	Listed on the Canadian autonomous sanctions list (Russia)	Canada Consolidated Autonomous Sanctions List (SEMA/JVCFOA)
Feb 24, 2026	Listed on the UK Sanctions List (Russia)	UK Sanctions List (FCDO)
Oct 24, 2025	Listed on the EU designated vessels (Official Journal) (Russia (Reg. 833/2014 Annex XLII))	EU designated vessels (Reg. 833/2014 Annex XLII; Reg. 2017/1509 Annex XIV)
Dec 28, 2022	Port State Control inspection at CORPUS CHRISTI, Texas	USCG PSIX / CGMIX inspections
Oct 21, 2018	Inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Oct 20, 2018	Port State Control inspection at STATEN ISLAND, New York	USCG PSIX / CGMIX inspections
Dec 29, 2016	Reported arrival at HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Dec 29, 2016	Reported departure from HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Dec 6, 2016	Reported departure from Marcus HookAuthority-reported	USACE foreign traffic vessel entrances & clearances
Dec 3, 2016	Inspection at Lewes, Delaware	USCG PSIX / CGMIX inspections
Nov 23, 2016	Inspection at PHILADELPHIA, Pennsylvania	USCG PSIX / CGMIX inspections
Oct 15, 2012	Port State Control inspection at Lewes, Delaware	USCG PSIX / CGMIX inspections
Nov 30, 2011	Inspection at Honolulu, Hawaii	USCG PSIX / CGMIX inspections
Sep 8, 2011	Inspection at Honolulu, Hawaii	USCG PSIX / CGMIX inspections
Sep 6, 2011	Inspection at Honolulu, Hawaii	USCG PSIX / CGMIX inspections
Jan 26, 2011	Inspection at TEXAS CITY, Texas	USCG PSIX / CGMIX inspections

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Safety & inspections

Inspections

not recorded

Detentions

Deficiencies

Date	Type	Port	Findings
Dec 28, 2022	Vessel InspectionPSC	CORPUS CHRISTI, Texas	clean
Oct 21, 2018	Vessel Inspection	STATEN ISLAND, New York	clean
Oct 20, 2018	Vessel InspectionPSC	STATEN ISLAND, New York	clean
Dec 3, 2016	Vessel Inspection	Lewes, Delaware	clean
Nov 23, 2016	Vessel Operational Control	PHILADELPHIA, Pennsylvania	clean
Oct 15, 2012	Vessel InspectionPSC	Lewes, Delaware	clean
Nov 30, 2011	Vessel Operational Control	Honolulu, Hawaii	clean
Sep 8, 2011	Boarding	Honolulu, Hawaii	clean
Sep 6, 2011	Vessel Operational Control	Honolulu, Hawaii	clean
Jan 26, 2011	Boarding	TEXAS CITY, Texas	clean
Jan 20, 2011	Vessel InspectionPSC	TEXAS CITY, Texas	clean

Source: U.S. Coast Guard Port State Information Exchange (PSIX) — public domain. Covers inspections recorded in U.S. waters. Free on Seadar; the incumbents charge for this.

Sanctions listings

Every listing of this ship on the sanctions lists Seadar tracks, current and past.

List	Programme	Listed as	Listed	Status
Canadian autonomous sanctions list	Russia	Tassos	Jun 12, 2026	In force
UK Sanctions List	Russia	TASSOS	Feb 24, 2026	In force
EU designated vessels (Official Journal)	Russia (Reg. 833/2014 Annex XLII)	Tassos	Oct 24, 2025	In force
OFAC SDN list (US)	IRAN-EO13902	TASSOS	not published by the list	In force

Source: Canada Consolidated Autonomous Sanctions List (SEMA/JVCFOA). Contains information licensed under the Open Government Licence – Canada. Licence: Open Government Licence – Canada.

Source: UK Sanctions List (FCDO). Contains public sector information licensed under the Open Government Licence v3.0. Licence: OGL v3.

Source: Council Regulation (EU) No 833/2014, Annex XLII, and Council Regulation (EU) 2017/1509, Annex XIV (Official Journal of the European Union); list compiled by the Danish Maritime Authority. Licence: EU legislation (Official Journal): reuse "for commercial or non-commercial purposes" (Decision 2011/833/EU); facts.

Source: OFAC Specially Designated Nationals list. Licence: US Government public domain (17 U.S.C. §105).

Emissions & fuel consumption

Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.

Year	CO₂ emitted	Fuel burned	Time at sea	CO₂ / n mile
2018	26,161 t	8,383 t	224 days	521 kg
2019	3,867 t	1,232 t	30 days	584 kg
2020	5,297 t	1,690 t	41 days	503 kg
2021	14,720 t	4,702 t	99 days	556 kg
2022	17,942 t	5,733 t	139 days	519 kg

Technical efficiency: EIV (3.34 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

Port calls

Two kinds of evidence, kept apart: calls Seadar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Dec 29, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Dec 29, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Marcus Hook USMAH	Departure	Dec 6, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
LOWER DELAWARE BAY DEL	Arrival	Dec 2, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Marcus Hook USMAH	Departure	Mar 22, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Marcus Hook USMAH	Arrival	Mar 18, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Philadelphia USPHL	Departure	Oct 17, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
Philadelphia USPHL	Arrival	Oct 15, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
Honolulu USHNL	Departure	Dec 8, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
BARBERS POINT, HI (NET TABLE)	Arrival	Dec 5, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
BARBERS POINT, HI (NET TABLE)	Departure	Sep 11, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances
BARBERS POINT, HI (NET TABLE)	Arrival	Sep 8, 2011(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: January 26, 2011.

Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.

Frequently asked questions

Where is TASSOS now?: TASSOS (Oil tanker, Cameroon flag) was last seen on AIS on Aug 5, 2026, 02:32 UTC, at anchor, near Ambarli (Sea of Marmara). Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is TASSOS?: TASSOS is an oil tanker sailing under the flag of Cameroon, built in 2009 by Jiangsu Rongsheng Heavy Industries. The vessel is 274 m long with a beam of 48 m and has a gross tonnage of 83,562.
What sanctions and inspection records does Seadar hold for TASSOS?: TASSOS appears on the UK Sanctions List, the OFAC SDN list, the EU list of designated vessels and the Canadian autonomous sanctions list under Russia, IRAN-EO13902, Russia (Reg. 833/2014 Annex XLII). TASSOS has 11 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

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