Navalyze · Bulk carrier · Ship

JNS SEA

IMO: 1038391
Type: Bulk carrier
Average cargo carried: 22,247 t
Port of registry: Hong Kong
Technical efficiency: EEXI 3.99 g CO₂/t·nm

ISM company (DoC holder) in 2025: Synergy Marine Shanghai Ltd · part of Synergy Marine

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 22,247 t of cargo on average.

Fuel kg/nm

65.8

Bulk carrier median 82.6 kg/nm (−20%)

CO₂ per transport work (cargo)

9.29

g CO₂/t·nm · Bulk carrier median 7.89 (+18%)

Average speed

11.1 kn

Bulk carrier median 10.7 kn (+4%)

Fuel per day at sea

17.5 t/day

Fuel consumed

1,842 t

CO₂ emitted

5,788 t

5,879 t CO₂eq incl. CH₄ and N₂O

Distance sailed

28,008 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,533 h

106 days, 29% of the year

Within the bulk carrier fleet, 2025

Set against all 3,610 bulk carrier ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 65.8 kg/nm · median 82.6 (−20%)

61.0Ranks 628 of 3,610, lowest first114.1

Average speedThis ship 11.1 kn · median 10.7 (+4%)

8.8Faster than 67% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 9.29 g CO₂/t·nm · median 7.89 (+18%)

4.80Ranks 2,379 of 3,610, lowest first15.93

Middle 80% of shipsMiddle 50%Bulk carrier medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports21%
From the EU38%
Into the EU36%
At berth in the EU5%

63% of this ship's CO₂ falls under the EU ETS (3,624 t).

Fuel burned laden

–

Not reported

CO₂ at berth

274 t

4.7% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+91 t

+1.6% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Synergy Marine Shanghai Ltd	1,842	5,788	28,008	2,533	11.1	65.8	9.29	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	Synergy Marine Shanghai Ltd	9.29	7.89	+18%	2,379 of 3,610	ClassNK	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's bulk carrier ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.