Navalyze · Bulk carrier · Ship

JNS OCEAN

IMO: 1044508
Type: Bulk carrier
Average cargo carried: 32,834 t
Port of registry: Hong Kong, China
Technical efficiency: EEDI 3.99 g CO₂/t·nm

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

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 32,834 t of cargo on average.

Fuel kg/nm

71.2

Bulk carrier median 82.6 kg/nm (−14%)

CO₂ per transport work (cargo)

6.79

g CO₂/t·nm · Bulk carrier median 7.89 (−14%)

Average speed

12.6 kn

Bulk carrier median 10.7 kn (+18%)

Fuel per day at sea

21.6 t/day

Fuel consumed

1,524 t

CO₂ emitted

4,769 t

4,844 t CO₂eq incl. CH₄ and N₂O

Distance sailed

21,390 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,694 h

71 days, 19% 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 71.2 kg/nm · median 82.6 (−14%)

61.0Ranks 960 of 3,610, lowest first114.1

Average speedThis ship 12.6 kn · median 10.7 (+18%)

8.8Faster than 98% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 6.79 g CO₂/t·nm · median 7.89 (−14%)

4.80Ranks 1,264 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 ports4%
From the EU18%
Into the EU73%
At berth in the EU5%

54% of this ship's CO₂ falls under the EU ETS (2,596 t).

Fuel burned laden

–

Not reported

CO₂ at berth

237 t

5.0% 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

+75 t

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

Over the years

Full-year reports only. The Bulk carrier median is the middle ship of all bulk carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

JNS OCEAN
Bulk carrier median

60.065.070.075.080.085.0

’242024’252025

Average speed, kn

JNS OCEAN
Bulk carrier median

10.511.011.512.012.513.0

’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.4 kn	+10%	+14%	+13%	–	0.4 kn faster, fuel per mile up 10%; in line with the speed change.

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

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	1,524	4,769	21,390	1,694	12.6	71.2	6.79	–
2024	Synergy Marine Shanghai Ltd	1,223	3,830	18,882	1,542	12.2	64.8	–	–

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	6.79	7.89	−14%	1,264 of 3,610	ClassNK	B+C
2024	Synergy Marine Shanghai Ltd	–	–	–	–	ClassNK	A

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.