Chemical tanker · Portugal flag · built 2016
CTG BISMUTH: CO₂ emissions 2018–2025
IMO 9739290 EU ETS8 reporting years
- CO₂ reported 2025
- 6,097 t
- Fuel burned
- 1,942 t
- Distance
- 28,128 nm
- Time at sea
- 2,438 h
- Emitted at berth
- 4% of total
- Share of year under way
- 28%
- Gross tonnage
- 17,139
CTG BISMUTH against its type
Built in 2016, it is 6 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 17,139 gross tonnage it is smaller than 59% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 71 chemical tankers here under the Portugal flag, 3.0% of the 2,344 on the register. The same builder is recorded for 40 other vessels here, 32 of them chemical tankers. Its MRV returns name it CTG BISMUTH for 2018–2019 and STOLT BISMUTH for 2020–2025. The reported port of registry changed: Majuro (2018–2019), then Monrovia (2020–2024), then Madeira (2025).
Its 6,097 t of CO₂ for 2025 is 10% 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 216.8 kg CO₂, 13% below the type median of 250.2 kg. It logged 2,438 hours at sea against a median of 2,109 hours for its type that year. 4.5% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2019 (10,991 t) and the lowest 2021 (3,135 t). Its efficiency percentile within the type went from 54 in 2018 to 35 in 2025 (lower is more efficient). Of the 8 sister ships listed below with a 2025 return, 8 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 | 6,097 | 1,942 | 28,128 | 2,438 | 273 | 216.8 | 12.0 | 35 |
| 2024 | 5,362 | 1,713 | 21,103 | 2,168 | 313 | 254.1 | 16.3 | 52 |
| 2023 | 6,847 | 2,185 | 29,764 | 2,318 | 904 | 230.0 | 11.8 | 28 |
| 2022 | 6,707 | 2,141 | 32,612 | 2,582 | 641 | 205.7 | 12.0 | 30 |
| 2021 | 3,135 | 1,000 | 15,477 | 1,624 | 139 | 202.5 | 22.6 | 73 |
| 2020 | 9,886 | 3,124 | 34,410 | 2,818 | 1,377 | 287.3 | 15.5 | 49 |
| 2019 | 10,991 | 3,513 | 43,144 | 3,890 | 631 | 254.8 | 16.4 | 49 |
| 2018 | 5,717 | 1,826 | 23,541 | 1,864 | 422 | 242.9 | 17.2 | 54 |
Vessel particulars
- IMO number
- 9739290
- Previously reported as
- STOLT BISMUTH
- Ship type
- Chemical tanker
- Gross tonnage
- 17,139
- Length overall
- 165.2 m
- Beam
- 27.0 m
- Year built
- 2016
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Marshall Islands. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- AVIC Dingheng Shipbuilding
- Port of registry
- Madeira MRV 2025
- Technical efficiency (design)
- EEXI (6.25 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-16
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 478 of 1,348 qualifying chemical tankers by EEOI, at the 35th percentile. The dashed line is the type median, 14.4; this vessel reported 12.0.
EEOI divides emissions by transport work, which for this vessel and year was 509,366,750 tonne-miles over 28,128 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 6.6% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 13.7% while distance sailed rose 33.3%and CO₂ per nautical mile fell 14.7%.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
- 6,192 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.35 t
- Under EU ETS
- 3,419 t, 56% 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 |
| 2021 | DNV | Germany |
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 8 MRV reporting years, an efficiency ranking, 5 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.