Chemical tanker · Liberia flag
KK MARLIN: CO₂ emissions 2023–2025
IMO 9835939 EU ETS3 reporting years
- CO₂ reported 2025
- 2,382 t
- Fuel burned
- 760 t
- Distance
- 6,698 nm
- Time at sea
- 516 h
- Emitted at berth
- 7% of total
- Share of year under way
- 6%
KK MARLIN against its type
It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. The returns for 2023–2025 all give MONROVIA as port of registry.
Its 2,382 t of CO₂ for 2025 is 57% below the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 355.7 kg CO₂, 42% above the type median of 250.2 kg. It logged 516 hours at sea against a median of 2,106 hours for its type that year. 7.0% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 3 years with reported emissions, the highest was 2023 (5,864 t) and the lowest 2024 (1,490 t). Its efficiency percentile within the type went from 0 in 2023 to 1 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 7 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2023–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 2,382 | 760 | 6,698 | 516 | 168 | 355.7 | 5.6 | 1 |
| 2024 | 1,490 | 474 | 4,423 | 343 | 244 | 336.9 | 6.2 | 1 |
| 2023 | 5,864 | 1,879 | 20,553 | 1,639 | 413 | 285.3 | 4.9 | 0 |
Vessel particulars
- IMO number
- 9835939
- Ship type
- Chemical tanker
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- MONROVIA MRV 2025
- Technical efficiency (design)
- EEDI (3.24 gCO₂/t·nm)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-03-04
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 9 of 1,348 qualifying chemical tankers by EEOI, at the 1st percentile. The dashed line is the type median, 14.4; this vessel reported 5.6.
EEOI divides emissions by transport work, which for this vessel and year was 428,449,640 tonne-miles over 6,698 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 59.4% lower than in 2023, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 59.9% while distance sailed rose 51.4%and CO₂ per nautical mile rose 5.6%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 2,420 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.14 t
- Under EU ETS
- 1,275 t, 54% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2023–2025, published by the European Commission.
This page draws on 3 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.