What kind of ship is Kosho Maru?

Kosho Maru is an LPG carrier sailing under the flag of Japan, built in 2010 by Kegoya Dock. The vessel is 67 m long with a beam of 11 m and has a gross tonnage of 749.

What sanctions and inspection records does Seadar hold for Kosho Maru?

Seadar has no matched sanctions record displayed for Kosho Maru from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Kosho Maru. Missing records do not establish whether the ship has been detained.

Kosho Maru

LPG carrier · Japan · built 2010 · AIS Class A

IMO9523744MMSI431001659Call signJD3102Last AIS position Sep 28, 2026, 11:33 UTC

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In short

Kosho Maru (LPG carrier, Japan flag) was last seen on AIS on Sep 28, 2026, 11:33 UTC, under way at 13.2 kn, near Imabari (North Pacific Ocean). Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is >JP MIZ TESIMA OFF; its reported draught is 4.5 m (voyage report via AISstream.io global terrestrial AIS, received Sep 28, 2026, 11:04 UTC).

Vessel type: LPG carrier
Flag: Japan
Year built: 2010
Gross tonnage: 749
Size (length × beam): 67 m × 11 m
Registered owner: —

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Last reported position

received Sep 28, 2026, 11:33 UTC

Position: 34.1377° N, 133.1173° E
Area: North Pacific Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 13.2 kn
Course: 61°
Heading: 59°

34.1377° N, 133.1173° 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: Kosho Maru
IMO numberWhat is an IMO number?: 9523744
MMSIWhat is an MMSI?: 431001659
Call signWhat is a call sign?: JD3102
Flag: Japan
Vessel type: LPG carrier
AIS ship type: Tanker
Gross tonnageGross tonnage vs deadweight: 749
Deadweight (DWT): Source: Wikidata, record Q117102541. Added to Seadar on September 23, 2026. Licence: CC0 1.0.1,140 t
Length overall: 67 m
Beam: 11 m
Year built: 2010

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.

Builder: Kegoya Dock
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Behaviour at sea Seadar-derived

Patterns Seadar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.

When	What we observed	Confidence
Sep 20, 2026, 14:03 UTC	AIS gap No AIS position received for 44 h 20 min while our receivers kept hearing other ships there (42 of 43 hours in coverage). Heard again 4 km away. Method seadar.behaviour.ais_gap v1	High (89%)

When

What we observed

Confidence

Sep 20, 2026, 14:03 UTC

AIS gap

No AIS position received for 44 h 20 min while our receivers kept hearing other ships there (42 of 43 hours in coverage). Heard again 4 km away.

Method seadar.behaviour.ais_gap v1

High (89%)

Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.

Derived from AIS positions of feeds whose terms allow display on Seadar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.

How these are computed →

Frequently asked questions

Where is Kosho Maru now?: Kosho Maru (LPG carrier, Japan flag) was last seen on AIS on Sep 28, 2026, 11:33 UTC, under way at 13.2 kn, near Imabari (North Pacific Ocean). Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was >JP MIZ TESIMA OFF (voyage report via AISstream.io global terrestrial AIS, received Sep 28, 2026, 11:04 UTC). This report does not confirm the ship’s current route.
What kind of ship is Kosho Maru?: Kosho Maru is an LPG carrier sailing under the flag of Japan, built in 2010 by Kegoya Dock. The vessel is 67 m long with a beam of 11 m and has a gross tonnage of 749.
What sanctions and inspection records does Seadar hold for Kosho Maru?: Seadar has no matched sanctions record displayed for Kosho Maru from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Kosho Maru. Missing records do not establish whether the ship has been detained.

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