Navalyze

Navalyze · Container · Ship

GFS LETO

IMO
9346562
Type
Container ship
Average cargo carried
3,730 t
Port of registry
Limassol
Technical efficiency
EEXI 21.80 g CO₂/t·nm
Former names
CONTSHIP LEX

ISM company (DoC holder) in 2025: CONTSHIPS MANAGEMENT INC.

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2025 at a glance

From the 2025 THETIS-MRV report. Carries about 3,730 t of cargo on average.

Fuel per mile
91.6 kg/nm
Container median 177.0 kg/nm (−48%)
CO₂ per transport work (cargo)
77.08
g CO₂/t·nm · Container median 16.30 (+373%)
Average speed
10.0 kn
Container median 13.3 kn (−25%)
Fuel per day at sea
22.0 t/day
Fuel consumed
1,858 t
CO₂ emitted
5,835 t
5,926 t CO₂eq incl. CH₄ and N₂O
Distance sailed
20,296 nm
CO₂ ÷ CO₂ per mile
Time at sea
2,026 h
84 days, 23% 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 91.6 kg/nm · median 177.0 (−48%)
78.8Ranks 426 of 2,208, lowest first302.4
Average speedThis ship 10.0 kn · median 13.3 (−25%)
9.1Faster than 15% of container ships16.0
CO₂ per transport work (cargo)This ship 77.08 g CO₂/t·nm · median 16.30 (+373%)
7.22Ranks 2,177 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 ports28%
  • From the EU34%
  • Into the EU36%
  • At berth in the EU2%

46% of this ship's CO₂ falls under the EU ETS (2,678 t).

Fuel burned laden
–
Not reported
CO₂ at berth
2.4%
Alongside in EU ports
Methane (CH₄)
0.1 t
Mainly from LNG; small for oil
CO₂eq ÷ CO₂
1.016
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

  • GFS LETO
  • Container median

Average speed, kn

  • GFS LETO
  • Container median

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

  • GFS LETO
  • Container median

Year on year

YearSpeedFuel per mileFuel per dayDistanceCO₂ per TWReading
2024→2025−1.6 kn+18%+2%−12%+44%1.6 kn slower, fuel per mile up 18%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024+0.9 kn−8%−0%+471%−37%0.9 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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

YearISM companyFuel tCO₂ tDistance nmAt sea hSpeed knFuel kg/nmCO₂ g/t·nmLaden fuel
2025part-yearCONTSHIPS MANAGEMENT INC.7292,2738,38372811.587.075.46–
2025GFS Ship Management FZE1,8585,83520,2962,02610.091.677.08–
2024CONTSHIPS MANAGEMENT INC.1,7855,57023,0091,98711.677.653.52–
2023not published3401,0684,03037710.784.584.76–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmContainer medianvs ContainerRankVerifierMethods
2025part-yearCONTSHIPS MANAGEMENT INC.––––DNVA
2025GFS Ship Management FZE77.0816.30+373%2,177 of 2,208DNVC
2024CONTSHIPS MANAGEMENT INC.53.5217.52+205%1,806 of 1,974DNVA
2023not published84.7619.40+337%1,886 of 1,899DNVA

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.