Chemical tanker · Liberia flag · built 2017
HIGH ADVENTURER: CO₂ emissions 2018–2025
IMO 9788435 EU ETS5 reporting years
- CO₂ reported 2025
- 1,855 t
- Fuel burned
- 589 t
- Distance
- 6,733 nm
- Time at sea
- 573 h
- Emitted at berth
- 7% of total
- Share of year under way
- 7%
- Gross tonnage
- 29,513
HIGH ADVENTURER against its type
Built in 2017, it is 7 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,513 gross tonnage it is larger than 75% 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 103 other vessels here, 5 of them chemical tankers. The reported port of registry changed: Panama (2018–2020), then Monrovia (2023–2025).
Its 1,855 t of CO₂ for 2025 is 66% 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 275.5 kg CO₂, 10% above the type median of 250.2 kg. It logged 573 hours at sea against a median of 2,106 hours for its type that year. 7.1% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 5 years with reported emissions, the highest was 2019 (11,073 t) and the lowest 2023 (1,712 t). Its efficiency percentile within the type went from 77 in 2018 to 6 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 5 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 | 1,855 | 589 | 6,733 | 573 | 132 | 275.5 | 7.5 | 6 |
| 2023 | 1,712 | 544 | 6,967 | 563 | 78 | 245.7 | 14.1 | 42 |
| 2020 | 9,694 | 3,096 | 39,228 | 2,871 | 711 | 247.1 | 7.3 | 3 |
| 2019 | 11,073 | 3,529 | 40,430 | 3,124 | 1,589 | 273.9 | 6.0 | 1 |
| 2018 | 5,123 | 1,628 | 16,599 | 1,381 | 614 | 308.6 | 25.1 | 77 |
Vessel particulars
- IMO number
- 9788435
- Ship type
- Chemical tanker
- Gross tonnage
- 29,513
- Length overall
- 183.0 m
- Year built
- 2017
- Flag state
- Liberia per EU MRV 2025
- Builder
- Onomichi Dockyard
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEDI (4.84 gCO₂/t·nm)
- Verifier
- RINA Services Spa, Italy
- Accreditation
- 002O
- Compliance document issued
- 2026-02-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 89 of 1,348 qualifying chemical tankers by EEOI, at the 6th percentile. The dashed line is the type median, 14.4; this vessel reported 7.5.
EEOI divides emissions by transport work, which for this vessel and year was 247,962,567 tonne-miles over 6,733 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 63.8% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2022, 2024, so the series has gaps.
From 2023 to 2025, emissions rose 8.3% while distance sailed fell 3.4%and CO₂ per nautical mile rose 12.1%.That points mainly to how efficiently it sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 1,884 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.11 t
- Under EU ETS
- 1,097 t, 59% 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 |
| 2019 | Nippon Kaiji Kyokai | Japan |
| 2023 | RINA Services Spa | Italy |
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 5 MRV reporting years, an efficiency ranking and 5 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.