Chemical tanker · Denmark flag · built 2015
STENA IMPORTANT: CO₂ emissions 2018–2025
IMO 9667497 EU ETS6 reporting years
- CO₂ reported 2025
- 5,519 t
- Fuel burned
- 1,766 t
- Distance
- 21,205 nm
- Time at sea
- 1,726 h
- Emitted at berth
- 6% of total
- Share of year under way
- 20%
- Gross tonnage
- 29,666
STENA IMPORTANT against its type
Built in 2015, it is 5 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,666 gross tonnage it is larger than 79% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 93 chemical tankers here under the Denmark flag, 4.0% of the 2,344 on the register. The same builder is recorded for 192 other vessels here, 87 of them chemical tankers. The reported port of registry changed: Hamilton (2020–2022), then Hellerup (2024–2025).
Its 5,519 t of CO₂ for 2025 is close to the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 260.3 kg CO₂, close to the type median of 250.2 kg. It logged 1,726 hours at sea against a median of 2,109 hours for its type that year. 5.6% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 6 years with reported emissions, the highest was 2018 (10,895 t) and the lowest 2020 (2,339 t). Its efficiency percentile within the type went from 11 in 2018 to 17 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 1 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 | 5,519 | 1,766 | 21,205 | 1,726 | 307 | 260.3 | 8.9 | 17 |
| 2024 | 8,993 | 2,865 | 36,317 | 3,087 | 438 | 247.6 | 9.9 | 20 |
| 2022 | 4,490 | 1,429 | 13,885 | 1,248 | 687 | 323.4 | 9.6 | 14 |
| 2021 | 5,510 | 1,748 | 17,280 | 1,786 | 781 | 318.9 | 13.7 | 37 |
| 2020 | 2,339 | 750 | 7,174 | 632 | 35 | 326.0 | 17.7 | 60 |
| 2018 | 10,895 | 3,478 | 36,048 | 3,217 | 694 | 302.2 | 9.5 | 11 |
Vessel particulars
- IMO number
- 9667497
- Ship type
- Chemical tanker
- Gross tonnage
- 29,666
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2015
- Flag state
- Denmark per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Bermuda. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Hellerup MRV 2025
- Technical efficiency (design)
- EEXI (4.43 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 233 of 1,348 qualifying chemical tankers by EEOI, at the 17th percentile. The dashed line is the type median, 14.4; this vessel reported 8.9.
EEOI divides emissions by transport work, which for this vessel and year was 622,201,804 tonne-miles over 21,205 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 49.3% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2023, so the series has gaps.
From 2024 to 2025, emissions fell 38.6% while distance sailed fell 41.6%and CO₂ per nautical mile rose 5.1%.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
- 5,606 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.32 t
- Under EU ETS
- 3,143 t, 57% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 6 MRV reporting years, an efficiency ranking and 5 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.