Chemical tanker · Marshall Islands flag · built 2015
HAFNIA VIOLETTE: CO₂ emissions 2018–2025
IMO 9690626 EU ETS8 reporting years
- CO₂ reported 2025
- 1,692 t
- Fuel burned
- 541 t
- Time at sea
- 476 h
- Share of year under way
- 5%
- Gross tonnage
- 29,531
HAFNIA VIOLETTE 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 29,531 gross tonnage it is larger than 76% 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. Its MRV returns name it NAVIG8 VIOLETTE for 2018–2020 and HAFNIA VIOLETTE for 2021–2025. The returns for 2018–2025 all give Majuro as port of registry.
Its 1,692 t of CO₂ for 2025 is 69% below the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 342.5 kg CO₂, 37% above the type median of 250.2 kg. It logged 476 hours at sea against a median of 2,109 hours for its type that year. 0.0% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2024 (8,391 t) and the lowest 2025 (1,692 t). Its efficiency percentile within the type went from 26 in 2018 to 22 in 2024 (lower is more efficient). Of the 5 comparable vessels listed below with a 2025 return, 5 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 | 1,692 | 541 | — | 476 | 0 | 342.5 | — | — |
| 2024 | 8,391 | 2,680 | 25,173 | 2,154 | 587 | 333.4 | 10.3 | 22 |
| 2023 | 3,299 | 1,053 | 10,787 | 957 | 189 | 305.9 | 10.6 | 21 |
| 2022 | 4,290 | 1,357 | 15,682 | 1,309 | 324 | 273.5 | 13.8 | 40 |
| 2021 | 6,358 | 2,011 | 21,344 | 1,914 | 376 | 297.9 | 11.8 | 24 |
| 2020 | 5,728 | 1,810 | 20,678 | 1,693 | 373 | 277.0 | 10.5 | 17 |
| 2019 | 3,410 | 1,087 | 10,467 | 1,121 | 283 | 325.8 | 9.0 | 9 |
| 2018 | 5,644 | 1,791 | 14,911 | 1,852 | 226 | 378.5 | 11.8 | 26 |
Vessel particulars
- IMO number
- 9690626
- Previously reported as
- NAVIG8 VIOLETTE
- Ship type
- Chemical tanker
- Gross tonnage
- 29,531
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2015
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (4.32 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2024
Position 268 of 1,194 qualifying chemical tankers by EEOI, at the 22nd percentile. The dashed line is the type median, 15.9; this vessel reported 10.3.
EEOI divides emissions by transport work, which for this vessel and year was 814,690,291 tonne-miles over 25,173 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 70.0% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 79.8% and CO₂ per nautical mile rose 2.8%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 1,719 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.10 t
- Under EU ETS
- 846 t, 50% 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 |
| 2023 | 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 8 MRV reporting years, an efficiency ranking, 4 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.