Chemical tanker · Panama flag · built 2008
AAPUS 11: CO₂ emissions 2021–2025
IMO 9508158 EU ETS5 reporting years
- CO₂ reported 2025
- 1,932 t
- Fuel burned
- 611 t
- Distance
- 9,399 nm
- Time at sea
- 697 h
- Emitted at berth
- 9% of total
- Share of year under way
- 8%
- Gross tonnage
- 11,572
AAPUS 11 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 11,572 gross tonnage it is smaller than 77% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 259 chemical tankers here under the Panama flag, 11.0% of the 2,344 on the register. The same builder is recorded for 76 other vessels here, 58 of them chemical tankers. Its MRV returns name it CHEM JUPITER for 2021–2023 and AAPUS 11 for 2024–2025. The reported port of registry changed: MONROVIA (2021–2023), then PANAMA (2024–2025).
Its 1,932 t of CO₂ for 2025 is 65% below the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 205.6 kg CO₂, 18% below the type median of 250.2 kg. It logged 697 hours at sea against a median of 2,109 hours for its type that year. 8.8% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 5 years with reported emissions, the highest was 2023 (8,873 t) and the lowest 2025 (1,932 t). Its efficiency percentile within the type went from 58 in 2021 to 49 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2021–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 1,932 | 611 | 9,399 | 697 | 170 | 205.6 | 14.3 | 49 |
| 2024 | 8,748 | 2,798 | — | 3,216 | 0 | 228.7 | — | not ranked |
| 2023 | 8,873 | 2,800 | 31,639 | 2,632 | 1,420 | 280.4 | 10.2 | 19 |
| 2022 | 6,972 | 2,199 | 29,556 | 2,399 | 658 | 235.9 | 18.9 | 62 |
| 2021 | 8,681 | 2,740 | 36,388 | 3,205 | 668 | 238.6 | 17.4 | 58 |
Vessel particulars
- IMO number
- 9508158
- Previously reported as
- CHEM JUPITER
- Ship type
- Chemical tanker
- Gross tonnage
- 11,572
- Length overall
- 141.0 m
- Beam
- 24.2 m
- Year built
- 2008
- Flag state
- Panama per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Liberia. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Kitanihon Shipbuilding
- Port of registry
- Panama MRV 2025
- Technical efficiency (design)
- EEXI (7.82 gCO₂/t·nm)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2026-03-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 665 of 1,348 qualifying chemical tankers by EEOI, at the 49th percentile. The dashed line is the type median, 14.4; this vessel reported 14.3.
EEOI divides emissions by transport work, which for this vessel and year was 135,224,633 tonne-miles over 9,399 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 77.7% lower than in 2021, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 77.9% and CO₂ per nautical mile fell 10.1%.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
- 1,962 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.11 t
- Under EU ETS
- 1,339 t, 69% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2021–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 5 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.