The sanctions listing names Seasky Marine Co Ltd as owner/operator. Ownership stated at designation may have changed since.

What flag does Hanson fly?

San Marino at the time of listing. Sanctioned vessels are frequently reflagged.

VesselSanctions-listedRussian shadow fleet Iranian shadow fleetIMO 9237412

Hanson

Also listed as / former names: SEASKY

Oil Tanker
Flag: San Marino
First dated designation: 2026-01-13
Listed by OFAC SDN (US), UK Sanctions List, SECO (Switzerland)
0 list events tracked

Is Hanson sanctioned?

Yes. Hanson (IMO 9237412) is currently designated on OFAC SDN (US), SECO (Switzerland), UK Sanctions List under IRAN-EO13902, Russia (Sanctions) (EU Exit) Regulations 2019, Situation in Ukraine. The earliest dated designation we hold is 2026-01-13. It has also been listed under the name SEASKY.

Vessel particulars (as published on sanctions lists)

IMO number

9237412

Source

Verified: copied from a structured field of an authoritative source

Source: UK Sanctions List
Retrieved: 2026-09-29
Source date: 2026-02-24
Extractor: sanctions-group/1

Raw evidence

IMO 9237412 (“HANSON”) is involved in activity whose object or effect is to destabilise Ukraine or undermine or threaten the territorial integrity, sovereignty or independence of Ukraine or to obtain a benefit from or support the Government of Russia. Namely, IMO 9237412 is involved in carrying oil or oil products that originated in Russia from Russia to a third country.

Source

Verified: copied from a structured field of an authoritative source

Source: Swiss SECO Sanctions List
Retrieved: 2026-09-29
Source date: 2026-01-13
Extractor: sanctions-group/1

Raw evidence

<target ssid="101289"><sanctions-set-id>77993</sanctions-set-id><object object-type="vessel"><identity ssid="101291" main="true"><name ssid="101292" name-type="primary-name" quality="good" lang="eng"><name-part order="1" name-part-type="whole-name"><value>Hanson</value></name-part></name></identity><justification ssid="101290">Transport crude oil or petroleum products 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).</justification><other-information ssid="101293">IMO number: 9237412</other-information></object><modification modification-type="listed" enactment-date="2026-01-12" publication-date="2026-01-13" effective-date="2026-01-13"/></target>

+1 more

MMSI

268242902

Source

Verified: copied from a structured field of an authoritative source

Source: OFAC Specially Designated Nationals (SDN) List
Retrieved: 2026-09-29
Extractor: sanctions-group/1

Raw evidence

<idNumber>268242902</idNumber>

Call sign

T7BN2

Vessel type

Oil Tanker

Source

Verified: copied from a structured field of an authoritative source

Source: UK Sanctions List
Retrieved: 2026-09-29
Source date: 2026-02-24
Extractor: sanctions-group/1

Raw evidence

<TypeOfShip>Oil Tanker</TypeOfShip>

Source

Verified: copied from a structured field of an authoritative source

Source: OFAC Specially Designated Nationals (SDN) List
Retrieved: 2026-09-29
Extractor: sanctions-group/1

Raw evidence

<vesselType>Crude Oil Tanker</vesselType>

Flag

San Marino

Source

Verified: copied from a structured field of an authoritative source

Source: OFAC Specially Designated Nationals (SDN) List
Retrieved: 2026-09-29
Extractor: sanctions-group/1

Raw evidence

<vesselFlag>San Marino</vesselFlag>

Tonnage

105,010 GRT

Source

Verified: copied from a structured field of an authoritative source

Source: UK Sanctions List
Retrieved: 2026-09-29
Source date: 2026-02-24
Extractor: sanctions-group/1

Raw evidence

<TonnageOfShip>105010</TonnageOfShip>

Year built

2004

Source

Verified: copied from a structured field of an authoritative source

Source: UK Sanctions List
Retrieved: 2026-09-29
Source date: 2026-02-24
Extractor: sanctions-group/1

Raw evidence

<YearBuilt>2004</YearBuilt>

Listed owner / operator

Seasky Marine Co Ltd

Source

Verified: copied from a structured field of an authoritative source

Source: UK Sanctions List
Retrieved: 2026-09-29
Source date: 2026-02-24
Extractor: sanctions-group/1

Raw evidence

<CurrentOwnerOperator>Seasky Marine Co Ltd</CurrentOwnerOperator>

Other / former names

SEASKY

Particulars are as stated by the listing authorities and may be outdated; vessels are frequently renamed and reflagged.

Sanctions listings (3)

Consolidated entry →

OFAC SDN (US)Active listingID 53137

Source

Verified: copied from a structured field of an authoritative source

Source: OFAC SDN (US)
Retrieved: 2026-09-29
Extractor: ofac-xml-parser

Raw evidence

<sdnEntry>
    <uid>53137</uid>
    <lastName>SEASKY</lastName>
    <sdnType>Vessel</sdnType>
    <remarks>(Linked To: SEASKY MARINE CO., LIMITED)</remarks>
    <programList>
      <program>IRAN-EO13902</program>
    </programList>
    <idList>
      <id>
        <uid>46234</uid>
        <idType>Vessel Registration Identification</idType>
        <idNumber>IMO 9237412</idNumber>
      </id>
      <id>
        <uid>46235</uid>
        <idType>MMSI</idType>
        <idNumber>268242902</idNumber>
      </id>
    </idList>
    <vesselInfo>
      <callSign>T7BN2</callSign>
      <vesselType>Crude Oil Tanker</vesselType>
      <vesselFlag>San Marino</vesselFlag>
    </vesselInfo>
  </sdnEntry>

Name on list: SEASKY
Programmes / regimes: IRAN-EO13902
Identifiers: IMO: 9237412
Linked to (per list): SEASKY MARINE CO., LIMITED
Remarks: (Linked To: SEASKY MARINE CO., LIMITED)

SECO (Switzerland)Active listingID 101289

Source

Verified: copied from a structured field of an authoritative source

Source: SECO (Switzerland)
Retrieved: 2026-09-29
Source date: 2026-01-13
Extractor: seco-xml-parser

Raw evidence

<target ssid="101289"><sanctions-set-id>77993</sanctions-set-id><object object-type="vessel"><identity ssid="101291" main="true"><name ssid="101292" name-type="primary-name" quality="good" lang="eng"><name-part order="1" name-part-type="whole-name"><value>Hanson</value></name-part></name></identity><justification ssid="101290">Transport crude oil or petroleum products 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).</justification><other-information ssid="101293">IMO number: 9237412</other-information></object><modification modification-type="listed" enactment-date="2026-01-12" publication-date="2026-01-13" effective-date="2026-01-13"/></target>

Name on list: Hanson
Programmes / regimes: Situation in Ukraine
Listed on: 2026-01-13
Last updated: 2026-01-13
Identifiers: IMO: 9237412
Remarks: Transport crude oil or petroleum products 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). IMO number: 9237412

UK Sanctions ListActive listingID RUS3395

Source

Verified: copied from a structured field of an authoritative source

Source: UK Sanctions List
Retrieved: 2026-09-29
Source date: 2026-02-24
Extractor: uk-xml-parser

Raw evidence

<Designation>
    <LastUpdated>24/02/2026</LastUpdated>
    <DateDesignated>24/02/2026</DateDesignated>
    <UniqueID>RUS3395</UniqueID>
    <Names>
      <Name>
        <Name6>HANSON</Name6>
        <NameType>Primary Name</NameType>
      </Name>
    </Names>
    <RegimeName>The Russia (Sanctions) (EU Exit) Regulations 2019</RegimeName>
    <IndividualEntityShip>Ship</IndividualEntityShip>
    <DesignationSource>UK</DesignationSource>
    <SanctionsImposed>Shipping sanctions: (see "Other information")</SanctionsImposed>
    <SanctionsImposedIndicators>
      <AssetFreeze>false</AssetFreeze>
      <ArmsEmbargo>false</ArmsEmbargo>
      <TargetedArmsEmbargo>false</TargetedArmsEmbargo>
      <CharteringOfShips>false</CharteringOfShips>
      <ClosureOfRepresentativeOffices>false</ClosureOfRepresentativeOffices>
      <CrewServicingOfShipsAndAircraft>false</CrewServicingOfShipsAndAircraft>
      <Deflag>false</Deflag>
      <PreventionOfBusinessArrangements>false</PreventionOfBusinessArrangements>
      <ProhibitionOfPortEntry>false</ProhibitionOfPortEntry>
      <TravelBan>false</TravelBan>
      <PreventionOfCharteringOfShips>false</PreventionOfCharteringOfShips>
      <PreventionOfCharteringOfShipsAndAircraft>false</PreventionOfCharteringOfShipsAndAircraft>
      <TechnicalAssistanceRelatedToAircraft>false</TechnicalAssistanceRelatedToAircraft>
      <TrustServicesSanctions>false</TrustServicesSanctions>
      <DirectorDisqualificationSanction>false</DirectorDisqualificationSanction>
    </SanctionsImposedIndicators>
    <OtherInformation>A specified ship is prohibited from entering a port in the UK, may be given a movement or a port entry direction, can be detained, and will be refused permission to register on the UK Ship Register or have its existing registration terminated, and a master or pilot of a specified ship may be given a port barring direction, a detention direction, and a port entry direction or a movement direction.</OtherInformation>
    <UKStatementofReasons>
The Secretary of State considers that there are reasonable grounds to suspect that 
IMO 9237412 (“HANSON”) is involved in activity whose object or effect is to destabilise Ukraine or undermine or threaten the territorial integrity, sovereignty or independence of Ukraine or to obtain a benefit from or support the Government of Russia. Namely, IMO 9237412 is involved in carrying oil or oil products that originated in Russia from Russia to a third country.
</UKStatementofReasons>
    <ShipDetails>
      <Ship>
        <IMONumbers>
          <IMONumber>IMO9237412</IMONumber>
        </IMONumbers>
        <CurrentOwnerOperators>
          <CurrentOwnerOperator>Seasky Marine Co Ltd</CurrentOwnerOperator>
        </CurrentOwnerOperators>
        <TypeOfShipDetails>
          <TypeOfShip>Oil Tanker</TypeOfShip>
        </TypeOfShipDetails>
        <TonnageOfShipDetails>
          <TonnageOfShip>105010</TonnageOfShip>
        </TonnageOfShipDetails>
        <LengthOfShipDetails>
          <LengthOfShip>243.5</LengthOfShip>
        </LengthOfShipDetails>
        <YearsBuilt>
          <YearBuilt>2004</YearBuilt>
        </YearsBuilt>
      </Ship>
    </ShipDetails>
  </Designation>

Name on list: HANSON
Programmes / regimes: Russia (Sanctions) (EU Exit) Regulations 2019
Listed on: 2026-02-24
Last updated: 2026-02-24
Identifiers: IMO: 9237412
Remarks: The Secretary of State considers that there are reasonable grounds to suspect that IMO 9237412 (“HANSON”) is involved in activity whose object or effect is to destabilise Ukraine or undermine or threaten the territorial integrity, sovereignty or independence of Ukraine or to obtain a benefit from or support the Government of Russia. Namely, IMO 9237412 is involved in carrying oil or oil products that originated in Russia from Russia to a third country. A specified ship is prohibited from entering a port in the UK, may be given a movement or a port entry direction, can be detained, and will be refused permission to register on the UK Ship Register or have its existing registration terminated, and a master or pilot of a specified ship may be given a port barring direction, a detention direction, and a port entry direction or a movement direction. Sanctions imposed: Shipping sanctions: (see "Other information")

Linked parties (1)

Listed owner / operator (1)

Seasky Marine Co., LimitedSanctions-listed party · ofac
Source
Verified: copied from a structured field of an authoritative source
Source
UK Sanctions List
Retrieved
2026-09-29
Source date
2026-02-24
Extractor
sanctions-group/1
Raw evidence
```
<CurrentOwnerOperator>Seasky Marine Co Ltd</CurrentOwnerOperator>
```

Timeline

No list changes detected since monitoring began.

Inclusion on a sanctions list is an administrative designation by the listing authority. Vessel particulars, names and ownership may have changed since designation. This page is informational and not a legal or compliance determination.