Chemical tanker · Marshall Islands flag · built 2019
IONIAN STAR: CO₂ emissions 2019–2025
IMO 9828895 EU ETS6 reporting years
- CO₂ reported 2025
- 4,702 t
- Fuel burned
- 1,498 t
- Distance
- 21,133 nm
- Time at sea
- 1,876 h
- Emitted at berth
- 3% of total
- Share of year under way
- 21%
IONIAN STAR against its type
Built in 2019, it is 9 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). It is one of 474 chemical tankers here under the Marshall Islands flag, 20.2% of the 2,344 on the register. The returns for 2019–2025 all give Majuro as port of registry.
Its 4,702 t of CO₂ for 2025 is 15% 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 222.5 kg CO₂, 11% below the type median of 250.2 kg. It logged 1,876 hours at sea against a median of 2,106 hours for its type that year. 3.1% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 6 years with reported emissions, the highest was 2019 (11,857 t) and the lowest 2023 (1,490 t). Its efficiency percentile within the type went from 7 in 2019 to 11 in 2025 (lower is more efficient). Of the 5 comparable vessels listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 4,702 | 1,498 | 21,133 | 1,876 | 146 | 222.5 | 8.1 | 11 |
| 2023 | 1,490 | 478 | 6,387 | 524 | 182 | 233.3 | 10.1 | 18 |
| 2022 | 5,773 | 1,843 | 26,177 | 2,134 | 673 | 220.5 | 7.8 | 4 |
| 2021 | 6,252 | 1,977 | 24,661 | 2,049 | 1,183 | 253.5 | 8.7 | 8 |
| 2020 | 4,211 | 1,329 | 21,390 | 1,742 | 325 | 196.9 | 7.5 | 4 |
| 2019 | 11,857 | 3,782 | 48,662 | 4,281 | 833 | 243.7 | 8.5 | 7 |
Vessel particulars
- IMO number
- 9828895
- Ship type
- Chemical tanker
- Year built
- 2019
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEDI (4.07 gCO₂/t·nm)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-04-01
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 150 of 1,348 qualifying chemical tankers by EEOI, at the 11th percentile. The dashed line is the type median, 14.4; this vessel reported 8.1.
EEOI divides emissions by transport work, which for this vessel and year was 581,908,416 tonne-miles over 21,133 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 60.3% lower than in 2019, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2023 to 2025, emissions rose 215.5% while distance sailed rose 230.9%and CO₂ per nautical mile fell 4.6%.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
- 4,775 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.27 t
- Under EU ETS
- 2,457 t, 52% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 6 MRV reporting years, an efficiency ranking and 2 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.