KOYO MARU (IMO 9853369)
KOYO MARU is a Chemical Tanker built in 2018 and flying the Japan flag, placing it in its eighth year of service. The vessel reports a deadweight tonnage of 395, a gross tonnage of 199, and no length overall is provided. This small-scale tanker is configured for specialized chemical transport operations. The vessel is classed by the flag authority. It has been observed in the East Asia region over recent periods. KOYO MARU has operated under one former name and one former flag state. No port state control (PSC) inspection records are on file for this vessel.
- Type: Chemical Tanker
- Flag: Japan
- Year built: 2018
- MMSI: 431011537
- Call sign: JD4414
- Gross tonnage: 199
- Deadweight: 395 t
- Registered owner: AONO KAIUN/WORKS NET (Japan)
- Ship manager: AONO KAIUN KK (Japan)
- Last AIS position: 33°58.5′N · 133°16.0′E · Speed 0.1 kn · at anchor · received 14 October 2026 at 11:18 UTC
- Destination: >JP IHA SN16A
Frequently asked questions
What is the vessel type of KOYO MARU?
KOYO MARU is a Chemical Tanker. It was built in 2018 and is currently in its eighth year of service.
What are the tonnage specifications for KOYO MARU?
The vessel has a deadweight tonnage of 395. Its gross tonnage is recorded at 199.
Which flag does KOYO MARU fly?
The vessel currently flies the Japan flag. It has previously operated under one different flag state during its service history.
What is the PSC inspection history for this vessel?
No port state control (PSC) inspection records are on file for this vessel.
Where has KOYO MARU been operating recently?
The vessel has been observed in the East Asia region. This is the primary geographic area noted in recent tracking data.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.