Mayaro (Chemical tanker, Japan flag) was last seen on AIS on Oct 1, 2026, 11:53 UTC, under way at 14.3 kn, in the English Channel. The crew-entered destination was IEORK (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 11:21 UTC). This report does not confirm the ship’s current route.

What kind of ship is Mayaro?

Mayaro is a chemical tanker sailing under the flag of Japan, built in 2015. The vessel is 175 m long with a beam of 27.7 m and has a gross tonnage of 21,129.

What sanctions and inspection records does Seadar hold for Mayaro?

Seadar has no matched sanctions record displayed for Mayaro 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 Mayaro. Missing records do not establish whether the ship has been detained.

Mayaro

Chemical tanker · Japan · built 2015 · AIS Class A

IMO9733703MMSI431228000Call sign7JUNLast AIS position Oct 1, 2026, 11:53 UTC

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In short

Mayaro (Chemical tanker, Japan flag) was last seen on AIS on Oct 1, 2026, 11:53 UTC, under way at 14.3 kn, in the English Channel. Its crew-entered AIS destination is IEORK (Cork), with an ETA of Oct 3, 2026, 02:00 UTC; its reported draught is 8.1 m (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 11:21 UTC).

Current voyage: from Botlek (departed Oct 1, 2026, 02:00 UTC) to IEORK (Cork)

Vessel type: Chemical tanker
Flag: Japan
Year built: 2015
Gross tonnage: 21,129
Size (length × beam): 175 m × 28 m
Registered owner: —

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Last reported position

received Oct 1, 2026, 11:53 UTC

Position: 51.1685° N, 1.6855° E
Area: English Channel
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 14.3 kn
Course: 219°
Heading: 218°

51.1685° N, 1.6855° E

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Last 30 days: 4 port calls (Botlek, Terneuzen, and Terdonk).

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: Mayaro
IMO numberWhat is an IMO number?: 9733703
MMSIWhat is an MMSI?: 431228000
Call signWhat is a call sign?: 7JUN
Flag: Japan
Vessel type: Detailed type from EU MRV (THETIS-MRV) emissionsChemical tanker
AIS ship type: Tanker
Gross tonnageGross tonnage vs deadweight: 21,129
Deadweight (DWT): Source: Wikidata, record Q104036041. Added to Seadar on September 23, 2026. Licence: CC0 1.0.30,940 t
Length overall: 175 m
Beam: 27.7 m
Year built: 2015

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.

ISM manager: MOL GLOBAL SHIP MANAGEMENT PTE. LTD.
Source: EU MRV (THETIS-MRV) emissions · reporting year 2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
MOL Tankship Management Pte. Ltd.
Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Sep 28, 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
Oct 1, 2026, 02:00 UTC	Left BotlekAIS-detected	Seadar port-call detector (AIS geofence)
Sep 29, 2026, 21:21 UTC	Arrived at BotlekAIS-detected	Seadar port-call detector (AIS geofence)
Sep 29, 2026, 13:17 UTC	Left TerneuzenAIS-detected	Seadar port-call detector (AIS geofence)
Sep 29, 2026, 11:12 UTC	Arrived at TerneuzenAIS-detected	Seadar port-call detector (AIS geofence)
Sep 29, 2026, 10:21 UTC	Left TerdonkAIS-detected	Seadar port-call detector (AIS geofence)
Sep 26, 2026, 20:03 UTC	Arrived at TerdonkAIS-detected	Seadar port-call detector (AIS geofence)
during 2025	ISM manager: MOL GLOBAL SHIP MANAGEMENT PTE. LTD. (previously MOL Tankship Management Pte. Ltd.)	Seadar relationship-change derivation (derived by Seadar from EU MRV (THETIS-MRV) emissions)
Dec 28, 2016	Reported arrival at SavannahAuthority-reported	USACE foreign traffic vessel entrances & clearances
Dec 28, 2016	Reported departure from SavannahAuthority-reported	USACE foreign traffic vessel entrances & clearances
Dec 24, 2016	Reported departure from ELIZABETH RIVER (SOUTHERN BRANCH) VAAuthority-reported	USACE foreign traffic vessel entrances & clearances

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.

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	7,341 t	2,349 t	112 days	236 kg
2019	6,807 t	2,176 t	115 days	211 kg
2020	9,031 t	2,856 t	154 days	208 kg
2021	7,118 t	2,252 t	126 days	188 kg
2022	5,916 t	1,869 t	95 days	208 kg
2023	5,807 t	1,832 t	104 days	195 kg
2024	5,842 t	1,848 t	100 days	192 kg
2025	4,742 t	1,498 t	97 days	203 kg

Technical efficiency: EEDI (5.63 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.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Botlek NLBOT	Sep 29, 2026, 21:21 UTC	Oct 1, 2026, 02:00 UTC	28 h 39 min
Terneuzen NLTNZ	Sep 29, 2026, 11:12 UTC	Sep 29, 2026, 13:17 UTC	2 h 5 min
Terdonk BETDK	Sep 26, 2026, 20:03 UTC	Sep 29, 2026, 10:21 UTC	2 d 14 h
Terneuzen NLTNZ	Sep 26, 2026, 17:01 UTC	Sep 26, 2026, 18:23 UTC	1 h 23 min

Detected by Seadar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Savannah USSAV	Arrival	Dec 28, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Savannah USSAV	Departure	Dec 28, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Departure	Dec 24, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Arrival	Dec 24, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Departure	Nov 25, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Arrival	Nov 25, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Departure	Oct 29, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Arrival	Oct 28, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Wilmington USILM	Departure	Sep 25, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Wilmington USILM	Arrival	Sep 24, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Departure	Sep 22, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ELIZABETH RIVER (SOUTHERN BRANCH) VA	Arrival	Sep 22, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: December 11, 2015.

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 Mayaro now?: Mayaro (Chemical tanker, Japan flag) was last seen on AIS on Oct 1, 2026, 11:53 UTC, under way at 14.3 kn, in the English Channel. The crew-entered destination was IEORK (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 11:21 UTC). This report does not confirm the ship’s current route.
What kind of ship is Mayaro?: Mayaro is a chemical tanker sailing under the flag of Japan, built in 2015. The vessel is 175 m long with a beam of 27.7 m and has a gross tonnage of 21,129.
What sanctions and inspection records does Seadar hold for Mayaro?: Seadar has no matched sanctions record displayed for Mayaro 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 Mayaro. Missing records do not establish whether the ship has been detained.

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