Chemical tanker · Panama flag
MTM ST JEAN: CO₂ emissions 2018–2025
IMO 9278674 EU ETS6 reporting years
- CO₂ reported 2025
- 1,305 t
- Fuel burned
- 408 t
- Time at sea
- 347 h
- Emitted at berth
- 16% of total
- Share of year under way
- 4%
MTM ST JEAN against its type
It is one of 259 chemical tankers here under the Panama flag, 11.0% of the 2,344 on the register. Its MRV returns name it MTM ST JEAN for 2018–2023 and WISDOM STAR for 2024–2025. The reported port of registry changed: Singapore (2018–2023), then PANAMA (2024–2025).
Its 1,305 t of CO₂ for 2025 is 76% 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 357.1 kg CO₂, 43% above the type median of 250.2 kg. It logged 347 hours at sea against a median of 2,106 hours for its type that year. 16.1% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 6 years with reported emissions, the highest was 2022 (6,340 t) and the lowest 2025 (1,305 t). Its efficiency percentile within the type went from 84 in 2018 to 19 in 2023 (lower is more efficient). Of the 2 comparable vessels listed below with a 2025 return, 1 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 | 1,305 | 408 | — | 347 | 211 | 357.1 | 26.5 | not ranked |
| 2024 | 3,727 | 1,193 | — | 1,308 | 0 | 253.4 | — | — |
| 2023 | 2,479 | 794 | 9,243 | 963 | 62 | 268.2 | 10.3 | 19 |
| 2022 | 6,340 | 2,006 | 23,145 | 2,021 | 435 | 273.9 | 21.9 | 72 |
| 2019 | 3,674 | 1,164 | 11,260 | 1,536 | 403 | 326.3 | 12.7 | 30 |
| 2018 | 3,634 | 1,166 | 9,498 | 1,953 | 69 | 382.6 | 31.1 | 84 |
Vessel particulars
- IMO number
- 9278674
- Previously reported as
- WISDOM STAR
- Ship type
- Chemical tanker
- Length overall
- 174.0 m
- Beam
- 27.0 m
- Flag state
- Panama per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Singapore. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Panama MRV 2025
- Technical efficiency (design)
- EEXI (5.93 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2025)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2026-03-29
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 64.1% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, so the series has gaps.
From 2024 to 2025, emissions fell 65.0% and CO₂ per nautical mile rose 40.9%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 1,325 t
- Methane (CH₄)
- 0.02 t
- Nitrous oxide (N₂O)
- 0.07 t
- Under EU ETS
- 996 t, 76% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2022 | HELLENIC LLOYD'S S.A. | Greece |
| 2024 | Nippon Kaiji Kyokai | Japan |
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.
This page draws on 6 MRV reporting years, 2 of 5 vessel particulars and a name history. Not found in the sources for this vessel: an efficiency ranking, 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.