Chemical tanker · Marshall Islands flag · built 2016
NAVIG8 TOURMALINE: CO₂ emissions 2018–2025
IMO 9753698 EU ETS8 reporting years
- CO₂ reported 2025
- 4,379 t
- Fuel burned
- 1,394 t
- Distance
- 15,357 nm
- Time at sea
- 1,373 h
- Emitted at berth
- 4% of total
- Share of year under way
- 16%
- Gross tonnage
- 29,492
NAVIG8 TOURMALINE against its type
Built in 2016, it is 6 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,492 gross tonnage it is larger than 75% 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 TOURMALINE for 2018–2021 and HAFNIA TOURMALINE for 2022–2025. The returns for 2018–2025 all give Majuro as port of registry.
Its 4,379 t of CO₂ for 2025 is 21% 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 285.1 kg CO₂, 14% above the type median of 250.2 kg. It logged 1,373 hours at sea against a median of 2,109 hours for its type that year. 3.8% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2019 (9,166 t) and the lowest 2023 (2,140 t). Its efficiency percentile within the type went from 38 in 2018 to 30 in 2025 (lower is more efficient). Of the 5 comparable vessels listed below with a 2025 return, 2 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 | 4,379 | 1,394 | 15,357 | 1,373 | 166 | 285.1 | 11.1 | 30 |
| 2024 | 5,006 | 1,599 | 18,070 | 1,528 | 236 | 277.0 | 10.9 | 26 |
| 2023 | 2,140 | 676 | 4,884 | 637 | 333 | 438.2 | 13.9 | 41 |
| 2022 | 6,680 | 2,129 | 21,679 | 1,806 | 528 | 308.1 | 8.1 | 6 |
| 2021 | 3,755 | 1,190 | 8,506 | 934 | 1,182 | 441.5 | 14.7 | 42 |
| 2020 | 6,426 | 2,033 | 20,061 | 1,719 | 549 | 320.4 | 8.1 | 6 |
| 2019 | 9,166 | 2,925 | 25,681 | 2,297 | 780 | 356.9 | 14.1 | 37 |
| 2018 | 4,605 | 1,473 | 12,391 | 971 | 342 | 371.7 | 14.1 | 38 |
Vessel particulars
- IMO number
- 9753698
- Previously reported as
- HAFNIA TOURMALINE
- Ship type
- Chemical tanker
- Gross tonnage
- 29,492
- Length overall
- 184.0 m
- Beam
- 30.0 m
- Year built
- 2016
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (4.17 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-03
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 410 of 1,348 qualifying chemical tankers by EEOI, at the 30th percentile. The dashed line is the type median, 14.4; this vessel reported 11.1.
EEOI divides emissions by transport work, which for this vessel and year was 394,115,212 tonne-miles over 15,357 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 4.9% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 12.5% while distance sailed fell 15.0%and CO₂ per nautical mile rose 2.9%.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
- 4,447 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.25 t
- Under EU ETS
- 2,481 t, 57% 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 |
| 2021 | 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.