Navalyze · Container · Ship

HMM DIAMOND

IMO: 9944481
Type: Container ship
Average cargo carried: 87,012 t
Port of registry: Monrovia
Technical efficiency: EEDI 7.04 g CO₂/t·nm

ISM company (DoC holder) in 2025: HMM Ocean Service Co Ltd · part of HMM

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 87,012 t of cargo on average.

Fuel per mile

180.5 kg/nm

Container median 177.0 kg/nm (+2%)

CO₂ per transport work (cargo)

6.46

g CO₂/t·nm · Container median 16.30 (−60%)

Average speed

13.7 kn

Container median 13.3 kn (+3%)

Fuel per day at sea

59.4 t/day

Fuel consumed

85 t

CO₂ emitted

265 t

269 t CO₂eq incl. CH₄ and N₂O

Distance sailed

472 nm

CO₂ ÷ CO₂ per mile

Time at sea

34 h

1 days, 0% 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 per mileThis ship 180.5 kg/nm · median 177.0 (+2%)

78.8Ranks 1,135 of 2,208, lowest first302.4

Average speedThis ship 13.7 kn · median 13.3 (+3%)

9.1Faster than 56% of container ships16.0

CO₂ per transport work (cargo)This ship 6.46 g CO₂/t·nm · median 16.30 (−60%)

7.22Ranks 115 of 2,208, lowest first46.89

Middle 80% of shipsMiddle 50%Container 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 ports0%
From the EU100%
Into the EU0%
At berth in the EU0%

50% of this ship's CO₂ falls under the EU ETS (133 t).

Fuel burned laden

–

Not reported

CO₂ at berth

0.0%

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

Uplift from CH₄ and N₂O, counted in full from 2026

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 per mile, kg/nm

HMM DIAMOND
Container median

160.0180.0200.0220.0

’242024’252025

Average speed, kn

HMM DIAMOND
Container median

12.513.013.514.0

’242024’252025

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

HMM DIAMOND
Container median

5.010.015.020.0

’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+1.2 kn	−14%	−6%	−96%	−19%	1.2 kn faster, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).

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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	HMM Ocean Service Co Ltd	85	265	472	34	13.7	180.5	6.46	–
2024	HMM Ocean Service Co Ltd	2,773	8,640	13,181	1,051	12.5	210.4	7.98	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	HMM Ocean Service Co Ltd	6.46	16.30	−60%	115 of 2,208	Korean Register	C
2024	HMM Ocean Service Co Ltd	7.98	17.52	−54%	268 of 1,974	Korean Register	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.