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Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%Dry Bulk Freight Index2,490 -1.3%Capesize3,538 -2.8%Panamax2,124 +0.7%Dirty Tanker Index1,935 +1.1%Supramax1,668 -0.1%Clean Tanker Index1,280 -1.4%Handysize947 +0.2%
Vehicles Carrier🇯🇵 JapanActive

KOYO MARU

IMO
9279604
MMSI
431401953
Call Sign
JI3710

Technical Specifications

Key Figures

Gross Tonnage
4,238GT
Deadweight
3,743DWT
Length Overall
124.7m
Beam
20.5m
Draught
6m
Year Built
2003

Live Tracking

Current Position

Live AIS · 18 h ago
Position
35.512°N · 139.916°E
Speed
16.8 kn
Course
53°
Status
Under way using engine

Intelligence

Risk & Sustainability

Risk scoreMedium
71/ 100
Safety58
Compliance95
Environment58
Recent port calls

AIS-derived from our live feed.

Operational Status

Activity

Likely laid upLow confidenceFix 12 days ago

An older hull, stopped, whose last broadcast is itself no longer fresh — a cautious lay-up proxy.

Speed
0.0 kn
Nav status
Moored
Last broadcast
12 days ago
Hull age
23 yr

Read from the single most-recent AIS broadcast we hold for this hull — we keep no position history, so this is a point-in-time posture, not a dwell inference. “Likely laid up” is a cautious proxy (an old hull, stopped, with a non-fresh fix), not a confirmed lay-up. Derived in-house from our own AIS feed; weight it by the broadcast age above.

Composite Risk

Risk Score

43/100
Moderate riskLow confidence40% component coverage

Some elevated factors — typically age or a lower-graded flag — but no acute ship-specific flag.

PSC detentionsno data
Sanctions exposureno data
Dark-fleet signalno data
Hull age72
Flag register0

A coverage-weighted blend of the 2 components we could read for this hull — the weights renormalise over only the components present, so a thin read is never inflated and a hull is never credited a “safe 0” for a signal it has no row for. This headline is flagged low-confidence (a thin or structural-only read) and should not be treated as a verdict. Higher means riskier. Derived in-house from government-open port-State-control, flag, sanctions and our own vessel data; weight it by the coverage above.

Estimated

Capacity & Classification

Cargo capacity at draughtMedium confidence
~3,743t at summer draught

Other · summer draught 6 m · 11.3 t per cm immersion

Estimated intake by draught
4.2 m~1,716 t
4.5 m~2,054 t
4.8 m~2,392 t
5.1 m~2,729 t
5.4 m~3,067 t
5.7 m~3,405 t
6 m~3,743 t

Estimate only — modelled from deadweight (deadweight regression) using a first-principles hydrostatic model, not measured hydrostatic tables. The design draught it is anchored to is unreliable across the fleet.

Commercial

Voyage Estimate

From 3,743 DWT · ~9 t/day · bunker @ live VLSFO.
KOYO MARU

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