Chemical tanker · Portugal flag · built 2008
PATEA: CO₂ emissions 2018–2025
IMO 9373632 MMSI 255806341EU ETS8 reporting years
- CO₂ reported 2025
- 9,835 t
- Fuel burned
- 3,087 t
- Distance
- 32,693 nm
- Time at sea
- 3,442 h
- Emitted at berth
- 11% of total
- Share of year under way
- 39%
- Gross tonnage
- 11,935
PATEA 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 11,935 gross tonnage it is smaller than 71% 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 98 other vessels here, 3 of them chemical tankers. Its MRV returns name it PATEA for 2018–2023 and SONGA AURORA for 2024–2025. The reported port of registry changed: Valletta (2018–2019), then Madeira (2020–2025).
Its 9,835 t of CO₂ for 2025 is 1.8 times the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 300.8 kg CO₂, 20% above the type median of 250.2 kg. It logged 3,442 hours at sea against a median of 2,109 hours for its type that year. 11.5% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2018 (10,878 t) and the lowest 2021 (2,499 t). Its efficiency percentile within the type went from 84 in 2018 to 94 in 2025 (lower is more efficient). The one sister ship listed below with a 2025 return reported a lower 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 | 9,835 | 3,087 | 32,693 | 3,442 | 1,127 | 300.8 | 42.8 | 94 |
| 2024 | 8,218 | 2,563 | 27,664 | 2,999 | 918 | 297.1 | 41.7 | 92 |
| 2023 | 5,037 | 1,581 | — | 2,031 | 488 | 257.7 | 40.9 | not ranked |
| 2022 | 9,249 | 2,900 | 31,385 | 3,290 | 987 | 294.7 | 32.9 | 86 |
| 2021 | 2,499 | 787 | 11,879 | 1,053 | 155 | 210.3 | 33.8 | 86 |
| 2020 | 9,747 | 3,067 | 29,336 | 3,056 | 1,653 | 332.3 | 51.9 | 96 |
| 2019 | 10,031 | 3,174 | 31,236 | 5,809 | 1,187 | 321.1 | 41.3 | 92 |
| 2018 | 10,878 | 3,452 | 41,436 | 5,927 | 1,298 | 262.5 | 31.1 | 84 |
Vessel particulars
- IMO number
- 9373632
- Previously reported as
- SONGA AURORA
- MMSI
- 255806341
- Ship type
- Chemical tanker
- Gross tonnage
- 11,935
- Length overall
- 144.1 m
- Beam
- 23.0 m
- Year built
- 2008
- Flag state
- Portugal per EU MRV 2025
- Builder
- Jiangnan Shipyard
- Port of registry
- Madeira MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EIV (13.35 gCO₂/t·nm)
- Verifier
- Korean Register, Korea, Republic of
- Accreditation
- D-VS-20824-01-00
- Compliance document issued
- 2026-03-30
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,274 of 1,348 qualifying chemical tankers by EEOI, at the 94th percentile. The dashed line is the type median, 14.4; this vessel reported 42.8.
EEOI divides emissions by transport work, which for this vessel and year was 229,795,794 tonne-miles over 32,693 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 9.6% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 19.7% while distance sailed rose 18.2%and CO₂ per nautical mile rose 1.3%.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
- 9,987 t
- Methane (CH₄)
- 0.15 t
- Nitrous oxide (N₂O)
- 0.56 t
- Under EU ETS
- 8,604 t, 87% of total
Observed movementsAIS · Norwegian waters
- First seen
- 28 Oct 2025
- Last seen
- 22 Jul 2026
- Days observed
- 39
- Positions
- 2,544
- Median speed
- 10.7 kn
Its recorded positions span 58.0°N to 60.9°N and 4.4°E to 6.2°E.
400 hourly points from 2,544 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Swiss Climate EcoCare GmbH | Germany |
| 2024 | Korean Register | Korea, Republic of |
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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, AIS movements in Norwegian waters and a name history. Not found in the sources for this vessel: 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.