Chemical tanker · Marshall Islands flag · built 2005
KATSUYAMA: CO₂ emissions 2018–2025
IMO 9274678 EU ETS7 reporting years
- CO₂ reported 2025
- 6,577 t
- Fuel burned
- 2,086 t
- Distance
- 20,313 nm
- Time at sea
- 1,788 h
- Emitted at berth
- 4% of total
- Share of year under way
- 20%
- Gross tonnage
- 26,659
KATSUYAMA against its type
Built in 2005, it is 5 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 26,659 gross tonnage it is larger than 62% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 474 chemical tankers here under the Marshall Islands flag, 20.2% of the 2,344 on the register. The same builder is recorded for 160 other vessels here, 8 of them chemical tankers. Its MRV returns name it MAERSK ELLIOT for 2018–2020 and KATSUYAMA for 2022–2025. The reported port of registry changed: Singapore (2018–2020), then MAJURO (2022–2025).
Its 6,577 t of CO₂ for 2025 is 19% above the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 323.8 kg CO₂, 29% above the type median of 250.2 kg. It logged 1,788 hours at sea against a median of 2,109 hours for its type that year. 3.6% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 7 years with reported emissions, the highest was 2019 (13,879 t) and the lowest 2022 (1,064 t). Its efficiency percentile within the type went from 83 in 2018 to 36 in 2025 (lower is more efficient). Of the 2 sister ships listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 6,577 | 2,086 | 20,313 | 1,788 | 235 | 323.8 | 12.0 | 36 |
| 2024 | 8,125 | 2,593 | 24,792 | 1,909 | 745 | 327.7 | 22.6 | 69 |
| 2023 | 4,076 | 1,300 | 14,480 | 1,228 | 168 | 281.5 | 12.9 | 33 |
| 2022 | 1,064 | 336 | — | 278 | 216 | 327.7 | 26.7 | not ranked |
| 2020 | 11,284 | 3,613 | 40,366 | 3,201 | 1,354 | 279.5 | 14.9 | 80 |
| 2019 | 13,879 | 4,372 | 47,900 | 3,838 | 1,359 | 289.8 | 16.3 | 85 |
| 2018 | 12,720 | 4,032 | 41,822 | 3,689 | 1,108 | 304.1 | 15.2 | 83 |
Vessel particulars
- IMO number
- 9274678
- Previously reported as
- MAERSK ELLIOT
- Ship type
- Chemical tanker
- Gross tonnage
- 26,659
- Length overall
- 185.6 m
- Year built
- 2005
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- CSC Jinling
- Port of registry
- MAJURO MRV 2025
- Home port
- Majuro
- Ice class
- IC
- Technical efficiency (design)
- EEXI (5.74 gCO₂/t·nm)
- Verifier
- CHINA CLASSIFICATION SOCIETY, China
- Accreditation
- 0003VV
- Compliance document issued
- 2026-03-25
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 489 of 1,348 qualifying chemical tankers by EEOI, at the 36th percentile. The dashed line is the type median, 14.4; this vessel reported 12.0.
EEOI divides emissions by transport work, which for this vessel and year was 546,275,748 tonne-miles over 20,313 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 48.3% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, so the series has gaps.
From 2024 to 2025, emissions fell 19.1% while distance sailed fell 18.1%and CO₂ per nautical mile fell 1.2%.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
- 6,680 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.38 t
- Under EU ETS
- 3,662 t, 56% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2022 | CHINA CLASSIFICATION SOCIETY | China |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 7 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.