Chemical tanker · Liberia flag · built 2008
ISOLDE: CO₂ emissions 2018–2025
IMO 9391385 EU ETS8 reporting years
- CO₂ reported 2025
- 3,854 t
- Fuel burned
- 1,219 t
- Distance
- 14,886 nm
- Time at sea
- 1,421 h
- Emitted at berth
- 4% of total
- Share of year under way
- 16%
- Gross tonnage
- 23,403
ISOLDE 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 23,403 gross tonnage it is larger than 53% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. The same builder is recorded for 983 other vessels here, 330 of them chemical tankers. Its MRV returns name it ISOLDE for 2018–2021 and LADYBUG for 2022–2025. The returns for 2018–2025 all give MONROVIA as port of registry.
Its 3,854 t of CO₂ for 2025 is 30% 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 258.9 kg CO₂, close to the type median of 250.2 kg. It logged 1,421 hours at sea against a median of 2,106 hours for its type that year. 4.3% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2020 (11,995 t) and the lowest 2023 (1,339 t). Its efficiency percentile within the type went from 65 in 2018 to 58 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 0 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 | 3,854 | 1,219 | 14,886 | 1,421 | 166 | 258.9 | 16.5 | 58 |
| 2024 | 2,954 | 941 | 12,588 | 1,024 | 134 | 234.7 | 26.0 | 76 |
| 2023 | 1,339 | 425 | — | 355 | 70 | 428.5 | 24.1 | not ranked |
| 2022 | 9,687 | 3,075 | 27,348 | 2,576 | 724 | 354.2 | 20.8 | 68 |
| 2021 | 11,937 | 3,758 | 38,150 | 4,302 | 1,346 | 312.9 | 18.0 | 60 |
| 2020 | 11,995 | 3,755 | 46,460 | 4,033 | 1,472 | 258.2 | 15.1 | 46 |
| 2019 | 8,452 | 2,685 | 29,357 | 3,287 | 1,415 | 287.9 | 14.4 | 38 |
| 2018 | 5,741 | 1,821 | 19,792 | 2,853 | 712 | 290.1 | 19.7 | 65 |
Vessel particulars
- IMO number
- 9391385
- Previously reported as
- LADYBUG
- Ship type
- Chemical tanker
- Gross tonnage
- 23,403
- Length overall
- 185.0 m
- Year built
- 2008
- Flag state
- Liberia per EU MRV 2025
- Builder
- HD Hyundai Mipo
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EEXI (5.68 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-04-02
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 785 of 1,348 qualifying chemical tankers by EEOI, at the 58th percentile. The dashed line is the type median, 14.4; this vessel reported 16.5.
EEOI divides emissions by transport work, which for this vessel and year was 234,114,216 tonne-miles over 14,886 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 32.9% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 30.4% while distance sailed rose 18.3%and CO₂ per nautical mile rose 10.3%.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
- 3,913 t
- Methane (CH₄)
- 0.06 t
- Nitrous oxide (N₂O)
- 0.22 t
- Under EU ETS
- 2,192 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 |
| 2022 | RINA HELLAS 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.