Navalyze · Container · Ship

YM WITNESS

IMO: 9704609
Type: Container ship
Average cargo carried: 70,460 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EEXI 8.78 g CO₂/t·nm

ISM company (DoC holder) in 2025: Seaspan Ship Management Ltd.

Report year

2019 at a glance

From the 2019 THETIS-MRV report. Carries about 104,344 t of cargo on average.

Fuel kg/nm

260

Container median 174 kg/nm (+49%)

CO₂ per transport work (cargo)

7.77

g CO₂/t·nm · Container median 18.9 (−59%)

Average speed

16.4 kn

Container median 13.7 kn (+20%)

Fuel per day at sea

102.0 t/day

Fuel consumed

25,001 t

CO₂ emitted

78,063 t

Distance sailed

96,284 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,881 h

245 days, 67% of the year

Within the container fleet, 2025

Set against all 2,208 container 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 231 kg/nm · median 177 (+31%)

78.8Ranks 1,501 of 2,208, lowest first302

Average speedThis ship 10.9 kn · median 13.3 (−18%)

9.1Faster than 21% of container ships16.0

CO₂ per transport work (cargo)This ship 10.3 g CO₂/t·nm · median 16.3 (−37%)

7.22Ranks 596 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2019

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 ports6%
From the EU39%
Into the EU53%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

1,335 t

1.7% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

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

Fuel kg/nm

YM WITNESS
Container median

150.0175.0200.0225.0250.0275.0

’182018’192019’202020’252025

Average speed, kn

YM WITNESS
Container median

10.012.014.016.018.0

’182018’192019’202020’252025

CO₂ per transport work (cargo), g CO₂/t·nm

YM WITNESS
Container median

5.010.015.020.025.0

’182018’192019’202020’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2020→2025	−5.0 kn	−11%	−39%	−93%	+32%	5.0 kn slower, fuel per mile down 11%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.5 kn	+0%	−3%	−69%	−0%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.1 kn	+2%	+2%	−1%	−5%	Same speed, fuel per mile up 2%; 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	Seaspan Ship Management Ltd.	494	1,547	2,138	196	10.9	231	10.3	–
2020	not published	7,659	24,135	29,407	1,854	15.9	261	7.76	–
2019	not published	25,001	78,063	96,284	5,881	16.4	260	7.77	–
2018	not published	24,857	77,540	97,622	5,979	16.3	255	8.19	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	Seaspan Ship Management Ltd.	10.3	16.3	−37%	596 of 2,208	DNV	B+C
2020	not published	7.76	17.6	−56%	221 of 1,797	DNV	B+C
2019	not published	7.77	18.9	−59%	173 of 1,788	DNV	B+C
2018	not published	8.19	20.2	−59%	153 of 1,705	DNV	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Container 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 container 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.