Chemical tanker · Malta flag · built 2008
HIGH SATURN: CO₂ emissions 2019–2025
IMO 9366263 EU ETS3 reporting years
- CO₂ reported 2025
- 6,137 t
- Fuel burned
- 1,955 t
- Distance
- 21,662 nm
- Time at sea
- 2,791 h
- Emitted at berth
- 5% of total
- Share of year under way
- 32%
- Gross tonnage
- 29,733
HIGH SATURN against its type
Built in 2008, it is 2 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,733 gross tonnage it is larger than 81% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 218 chemical tankers here under the Malta flag, 9.3% of the 2,344 on the register. Its MRV returns name it HIGH SATURN for 2019 and KARDIANI for 2024–2025. The reported port of registry changed: Hong Kong (2019), then VALETTA (2024–2025).
Its 6,137 t of CO₂ for 2025 is 11% above the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 283.3 kg CO₂, 13% above the type median of 250.2 kg. It logged 2,791 hours at sea against a median of 2,109 hours for its type that year. 5.5% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 3 years with reported emissions, the highest was 2024 (7,701 t) and the lowest 2019 (4,656 t). Its efficiency percentile within the type went from 10 in 2019 to 24 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 year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 6,137 | 1,955 | 21,662 | 2,791 | 335 | 283.3 | 9.9 | 24 |
| 2024 | 7,701 | 2,455 | 24,944 | 2,364 | 502 | 308.7 | 12.6 | 36 |
| 2019 | 4,656 | 1,478 | 14,218 | 1,289 | 638 | 327.5 | 9.3 | 10 |
Vessel particulars
- IMO number
- 9366263
- Previously reported as
- KARDIANI
- Ship type
- Chemical tanker
- Gross tonnage
- 29,733
- Length overall
- 183.0 m
- Year built
- 2008
- Flag state
- Malta per EU MRV 2025
- Port of registry
- VALETTA MRV 2025
- Home port
- Majuro MH 96960 Marshall Islands
- Technical efficiency (design)
- EEXI (4.89 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-04-01
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 324 of 1,348 qualifying chemical tankers by EEOI, at the 24th percentile. The dashed line is the type median, 14.4; this vessel reported 9.9.
EEOI divides emissions by transport work, which for this vessel and year was 619,270,434 tonne-miles over 21,662 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 31.8% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, 2023, so the series has gaps.
From 2024 to 2025, emissions fell 20.3% while distance sailed fell 13.2%and CO₂ per nautical mile fell 8.2%.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
- 6,233 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.35 t
- Under EU ETS
- 3,510 t, 57% of total
Laden voyages2025
- CO₂ on laden voyages
- 4,407 t, 72% of total
- Fuel, laden
- 1,409 t
- CO₂ per nm, laden
- 260.2 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2024 | RINA HELLAS LTD | Greece |
| 2025 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | 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 3 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.