SILVER GWEN — Know Your Vessel

Updated: 2026-07-25 | Source: ship.rootz.global | Data: OFAC, EIA, EU MRV, GFW, AIS, USCG
Flag State
PANAMA
Type
Chemical tanker
Built
2014
12 years old
DWT
25,000

Present Location

Last seen at
TANJUNG PELEPAS
MYS
Arrived
2025-02-04
Departed
2025-02-09
531d ago

Risk Assessment

Carbon Intensity (CII)

Rating (2021)
Unrated
CO2 Emissions
2,832
tonnes/year
Distance
9,913
nm/year
YearRatingRatio
2021Unrated
2020Unrated
2018Unrated

EU MRV 2021: 2,832 t CO2, 900 t fuel, 285.69 kg CO2/nm

Voyage Pattern

Port Visits
99
Avg Dwell
57h
2d per port
Port Utilization
41.8%
time in port
Dark Events
4
80h total

Primary route: HOUSTON → MOBILE → MONTEGO BAY

Data period: 2023-07-25 to 2025-02-09

PortCountryVisits
HOUSTONUSA8
MONTEGO BAYJAM5
MOBILEUSA5
SAN PEDRO DE MACORISDOM4
KINGSTONJAM4

Recent port calls:

ArrivalDeparturePortCountryDuration
2025-02-042025-02-09TANJUNG PELEPASMYS4.1d
2025-02-022025-02-04SINGAPORESGP2.9d
2025-01-312025-02-02TANJUNG PELEPASMYS1.4d
2025-01-272025-01-31MYS3.3d
2025-01-262025-01-27TELOK RAMUNIAMYS1d
2025-01-212025-01-23IDN1.7d
2025-01-062025-01-14TANJUNG PELEPASMYS7.3d
2024-12-292025-01-01IND2.8d
2024-12-172024-12-20TELOK RAMUNIAMYS2.6d
2024-12-012024-12-09ULSANKOR8.6d
2024-11-052024-11-25CHN-2338CHN19.9d
2024-10-292024-10-31BATANGASPHL1.5d
2024-10-272024-10-29PHL1.9d
2024-10-192024-10-22QUANZHOUCHN3.3d
2024-10-122024-10-13TELOK RAMUNIAMYS1d
2024-09-272024-09-28CAIRNSAUS1.5d
2024-09-262024-09-27AUS0.3d
2024-09-242024-09-26MAGNETIC ISLANDAUS1.4d
2024-09-072024-09-11TWN3.7d
2024-09-022024-09-04KOR2d

AIS Dark Periods

4 events, 80 hours total darkness

StartEndHoursAIS OffAIS OnDistanceImplied SpeedAnalysis
2026-05-062026-05-0737HIGH RISK ZONE
2026-02-252026-02-2514HIGH RISK ZONE
2025-05-302025-05-3112HIGH RISK ZONE
2025-04-032025-04-0317HIGH RISK ZONE

ESTIMATED — implied speed = straight-line distance / dark hours. Actual route unknown. Reference: loaded VLCC ~12-14 kn, ballast ~15-16 kn, stationary <1 kn = possible STS or anchorage.

Loitering Events

27 events, 208 hours total (stationary at sea — possible STS transfers)

StartHoursPositionSpeedRisk Zone
2026-01-281148.2, -126.01.6 kn
2026-01-271048.2, -126.21.5 kn
2025-11-0651.8, 104.70.1 kn
2025-08-2919-34.0, 151.91.7 kn
2025-08-273-34.2, 151.71.6 kn
2025-06-191036.3, 130.11.9 knHIGH RISK
2025-06-191735.9, 130.21.7 knHIGH RISK
2025-06-182135.6, 131.11.7 knHIGH RISK
2025-06-17235.7, 130.62.0 knHIGH RISK
2025-06-171035.7, 130.31.7 knHIGH RISK

STS Encounter Detection

Other vessels detected loitering at the same position and time (within ~30nm, overlapping window)

2025-11-06 — Singapore Strait

VesselIMOStatusDurationSpeed
ALA9198094SANCTIONED1202h0.1 kn
ROZA9197909SANCTIONED582h0.0 kn
ZEVS9168946SANCTIONED42h0.0 kn
KATSUYA9178068SANCTIONED1681h0.0 kn
VETER9233739SANCTIONED166h0.0 kn
BETTLE9323338SANCTIONED896h0.0 kn
SANMAR REGINA9358670Clean12h0.1 kn
XI9174397SANCTIONED575h0.1 kn
NOXEN9189146SANCTIONED818h0.1 kn
FELIX9181194SANCTIONED83h0.1 kn
DYLAN9421336Clean15h0.1 kn
DA LI9113379SANCTIONED1406h0.0 kn
FUR UP9203928SANCTIONED16h0.0 kn
OTHONI9711494Clean347h0.0 kn

14 unique vessels encountered, 11 sanctioned

USCG Registration

StatusActive
Call Sign3FJJ4
Deficiency Count0
Detention Count0
Last Exam

Data sources: USCG CGMIX, EU MRV (EMSA), CII computed, Global Fishing Watch, GFW dark events. All records cryptographically attested on Polygon.

Data sources: U.S. Treasury (OFAC SDN), U.S. Energy Information Administration, European Maritime Safety Agency (EU MRV), U.S. Coast Guard (PSIX), Global Fishing Watch (GFW satellite AIS), AISStream.io. All data cryptographically attested on Polygon blockchain.

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