Chemical tanker · Marshall Islands flag
HAFNIA TANZANITE: CO₂ emissions 2018–2025
IMO 9753703 EU ETS5 reporting years
- CO₂ reported 2025
- 8,547 t
- Fuel burned
- 2,729 t
- Distance
- 28,942 nm
- Time at sea
- 2,475 h
- Emitted at berth
- 5% of total
- Share of year under way
- 28%
HAFNIA TANZANITE against its type
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 TANZANITE for 2018–2019 and HAFNIA TANZANITE for 2022–2025. The returns for 2018–2025 all give Majuro as port of registry.
Its 8,547 t of CO₂ for 2025 is 1.5 times the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 295.3 kg CO₂, 18% above the type median of 250.2 kg. It logged 2,475 hours at sea against a median of 2,106 hours for its type that year. 4.7% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 5 years with reported emissions, the highest was 2025 (8,547 t) and the lowest 2018 (3,305 t). Its efficiency percentile within the type went from 29 in 2018 to 21 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 6 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 | 8,547 | 2,729 | 28,942 | 2,475 | 406 | 295.3 | 9.3 | 21 |
| 2024 | 7,423 | 2,358 | 23,879 | 2,126 | 544 | 310.9 | 9.6 | 18 |
| 2022 | 6,717 | 2,140 | 23,842 | 2,120 | 467 | 281.7 | 7.4 | 3 |
| 2019 | 4,682 | 1,492 | 18,546 | 1,910 | 114 | 252.4 | 6.9 | 2 |
| 2018 | 3,305 | 1,059 | 11,988 | 1,080 | 313 | 275.7 | 12.3 | 29 |
Vessel particulars
- IMO number
- 9753703
- Previously reported as
- NAVIG8 TANZANITE
- Ship type
- Chemical tanker
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (4.12 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 289 of 1,348 qualifying chemical tankers by EEOI, at the 21st percentile. The dashed line is the type median, 14.4; this vessel reported 9.3.
EEOI divides emissions by transport work, which for this vessel and year was 915,047,109 tonne-miles over 28,942 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 158.6% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2023, so the series has gaps.
From 2024 to 2025, emissions rose 15.1% while distance sailed rose 21.2%and CO₂ per nautical mile fell 5.0%.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
- 8,681 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.49 t
- Under EU ETS
- 4,569 t, 53% 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 | 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.
This page draws on 5 MRV reporting years, an efficiency ranking, 1 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.