Chemical tanker · Liberia flag
DEE4 NERIUM: CO₂ emissions 2022–2025
IMO 9929821 EU ETS4 reporting years
- CO₂ reported 2025
- 712 t
- Fuel burned
- 228 t
- Distance
- 3,427 nm
- Time at sea
- 287 h
- Share of year under way
- 3%
DEE4 NERIUM 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 2022–2025 all give MONROVIA as port of registry.
Its 712 t of CO₂ for 2025 is 87% 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 207.7 kg CO₂, 17% below the type median of 250.2 kg. It logged 287 hours at sea against a median of 2,106 hours for its type that year. 0.0% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 4 years with reported emissions, the highest was 2024 (6,233 t) and the lowest 2025 (712 t). Its efficiency percentile within the type went from 56 in 2022 to 3 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2022–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 712 | 228 | 3,427 | 287 | 0 | 207.7 | 6.8 | 3 |
| 2024 | 6,233 | 1,984 | 26,688 | 2,411 | 458 | 233.6 | 10.7 | 25 |
| 2023 | 2,479 | 783 | 10,762 | 950 | 79 | 230.4 | 9.1 | 61 |
| 2022 | 5,082 | 1,604 | 20,254 | 1,809 | 287 | 250.9 | 8.6 | 56 |
Vessel particulars
- IMO number
- 9929821
- Ship type
- Chemical tanker
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (4.07 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-16
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 46 of 1,348 qualifying chemical tankers by EEOI, at the 3rd percentile. The dashed line is the type median, 14.4; this vessel reported 6.8.
EEOI divides emissions by transport work, which for this vessel and year was 104,851,252 tonne-miles over 3,427 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 86.0% lower than in 2022, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 88.6% while distance sailed fell 87.2%and CO₂ per nautical mile fell 11.1%.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
- 723 t
- Methane (CH₄)
- 0.01 t
- Nitrous oxide (N₂O)
- 0.04 t
- Under EU ETS
- 356 t, 50% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2022 | Nippon Kaiji Kyokai | Japan |
| 2024 | DNV | Germany |
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 2022–2025, published by the European Commission.
This page draws on 4 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.