Chemical tanker · Portugal flag · built 2007
ST SARA: CO₂ emissions 2018–2025
IMO 9356646 EU ETS7 reporting years
- CO₂ reported 2025
- 3,498 t
- Fuel burned
- 1,095 t
- Distance
- 28,810 nm
- Time at sea
- 3,522 h
- Emitted at berth
- 5% of total
- Share of year under way
- 40%
- Gross tonnage
- 5,271
ST SARA against its type
Built in 2007, it is 3 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 5,271 gross tonnage it is smaller than 98% 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 8 other vessels here, 3 of them chemical tankers. Its MRV returns name it ST SARA for 2018–2023 and TANKER BEE 11 for 2024–2025. The reported port of registry changed: Marseille (2018–2020), then VALLETTA (2022–2023), then Madeira (2024–2025).
Its 3,498 t of CO₂ for 2025 is 37% 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 121.4 kg CO₂, 51% below the type median of 250.2 kg. It logged 3,522 hours at sea against a median of 2,106 hours for its type that year. 4.7% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 7 years with reported emissions, the highest was 2024 (6,135 t) and the lowest 2022 (1,787 t). Its efficiency percentile within the type went from 99 in 2020 to 88 in 2025 (lower is more efficient). The one sister ship listed below with a 2025 return reported a higher or equal CO₂ per nautical mile.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 3,498 | 1,095 | 28,810 | 3,522 | 166 | 121.4 | 34.1 | 88 |
| 2024 | 6,135 | 1,918 | 37,093 | 3,685 | 540 | 165.4 | 43.9 | 94 |
| 2023 | 4,301 | 1,341 | 22,053 | 2,210 | 1,309 | 195.0 | 68.2 | 99 |
| 2022 | 1,787 | 557 | — | 1,111 | 196 | 179.6 | 100.4 | not ranked |
| 2020 | 5,400 | 1,684 | 18,534 | 3,968 | 950 | 291.4 | 76.5 | 99 |
| 2019 | 3,780 | 1,179 | — | 1,322 | 2,050 | 387.6 | 156.8 | not ranked |
| 2018 | 3,630 | 1,132 | — | 974 | 2,199 | 945.3 | — | not ranked |
Vessel particulars
- IMO number
- 9356646
- Previously reported as
- TANKER BEE 11
- Ship type
- Chemical tanker
- Gross tonnage
- 5,271
- Length overall
- 121.0 m
- Year built
- 2007
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list France. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Anadolu Shipyard
- Port of registry
- Madeira MRV 2025
- Home port
- Madeira
- Technical efficiency (design)
- EEXI (14.38 gCO₂/t·nm)
- Verifier
- Polish Register of Shipping, Poland
- Accreditation
- PL-VG-0013
- Compliance document issued
- 2026-03-21
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,183 of 1,348 qualifying chemical tankers by EEOI, at the 88th percentile. The dashed line is the type median, 14.4; this vessel reported 34.1.
EEOI divides emissions by transport work, which for this vessel and year was 102,471,588 tonne-miles over 28,810 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 3.6% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, so the series has gaps.
From 2024 to 2025, emissions fell 43.0% while distance sailed fell 22.3%and CO₂ per nautical mile fell 26.6%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 3,552 t
- Methane (CH₄)
- 0.05 t
- Nitrous oxide (N₂O)
- 0.20 t
- Under EU ETS
- 2,603 t, 74% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Bureau Veritas Certification France | France |
| 2022 | HELLENIC LLOYD'S S.A. | Greece |
| 2024 | Polish Register of Shipping | Poland |
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 7 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.