Navalyze · Container · Ship

COSCO VIETNAM

IMO: 9448815
Type: Container ship
Average cargo carried: 71,923 t
Port of registry: Hong Kong
Technical efficiency: EEXI 11.12 g CO₂/t·nm

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 71,923 t of cargo on average.

Fuel per mile

261.9 kg/nm

Container median 165.1 kg/nm (+59%)

CO₂ per transport work (cargo)

11.34

g CO₂/t·nm · Container median 19.40 (−42%)

Average speed

13.4 kn

Container median 13.2 kn (+2%)

Fuel per day at sea

84.5 t/day

Fuel consumed

2,491 t

CO₂ emitted

7,756 t

Distance sailed

9,509 nm

CO₂ ÷ CO₂ per mile

Time at sea

708 h

30 days, 8% of the year

Within the container fleet, 2023

Set against all 1,899 container ships with a full-year 2023 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 261.9 kg/nm · median 165.1 (+59%)

77.6Ranks 1,574 of 1,899, lowest first290.9

Average speedThis ship 13.4 kn · median 13.2 (+2%)

10.0Faster than 57% of container ships15.4

CO₂ per transport work (cargo)This ship 11.34 g CO₂/t·nm · median 19.40 (−42%)

7.34Ranks 479 of 1,899, lowest first51.88

Middle 80% of shipsMiddle 50%Container medianThis ship

Where the emissions happen, 2023

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 ports18%
From the EU72%
Into the EU5%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

4.5%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

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

COSCO VIETNAM
Container median

150.0175.0200.0225.0250.0275.0

’182018’192019’202020’212021’222022’232023

Average speed, kn

COSCO VIETNAM
Container median

13.014.015.016.0

’182018’192019’202020’212021’222022’232023

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

COSCO VIETNAM
Container median

10.012.515.017.520.022.5

’182018’192019’202020’212021’222022’232023

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2022→2023	−0.7 kn	+8%	+3%	−85%	−7%	0.7 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.2 kn	+3%	+2%	−5%	+7%	Same speed, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−1.0 kn	−7%	−13%	−13%	−14%	1.0 kn slower, fuel per mile down 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.2 kn	−3%	−4%	−9%	−6%	Same speed, fuel per mile down 3%; in line with the speed change.
2018→2019	+0.4 kn	−0%	+2%	+9%	+6%	0.4 kn faster, fuel per mile flat; 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
2023	not published	2,491	7,756	9,509	708	13.4	261.9	11.34	–
2022	not published	15,780	49,725	64,804	4,596	14.1	243.5	12.18	–
2021	not published	16,118	50,826	68,425	4,778	14.3	235.6	11.36	–
2020	not published	20,029	63,460	78,839	5,143	15.3	254.0	13.18	–
2019	not published	22,686	70,955	86,923	5,614	15.5	261.0	13.99	–
2018	not published	20,797	65,026	79,596	5,257	15.1	261.3	13.14	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2023	not published	11.34	19.40	−42%	479 of 1,899	DNV	B+C
2022	not published	12.18	19.13	−36%	495 of 1,825	DNV	B+C
2021	not published	11.36	17.90	−37%	426 of 1,781	DNV	B+C
2020	not published	13.18	17.58	−25%	589 of 1,797	DNV	B+C
2019	not published	13.99	18.88	−26%	569 of 1,788	DNV	B+C
2018	not published	13.14	20.22	−35%	438 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.