Chemical tanker · South Korea flag · built 2009
JBU SAPPHIRE: CO₂ emissions 2019–2025
IMO 9412725 EU ETS4 reporting years
- CO₂ reported 2024
- 8,571 t
- Fuel burned
- 2,708 t
- Distance
- 34,479 nm
- Time at sea
- 3,472 h
- Emitted at berth
- 5% of total
- Share of year under way
- 40%
- Gross tonnage
- 11,561
JBU SAPPHIRE against its type
Built in 2009, it is 1 year older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 11,561 gross tonnage it is smaller than 77% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 15 chemical tankers here under the South Korea flag, 0.6% of the 2,344 on the register. The same builder is recorded for 76 other vessels here, 58 of them chemical tankers. The reported port of registry changed: Majuro (2019–2021), then Jeju (2024–2025).
Its 8,571 t of CO₂ for 2024 is 47% above the median of 5,830 t among the 1,451 chemical tankers on this register that reported for 2024. Per nautical mile it emitted 248.6 kg CO₂, close to the type median of 253.5 kg. It logged 3,472 hours at sea against a median of 2,177 hours for its type that year. 4.7% of its 2024 emissions were at berth; the median for chemical tankers was 5.9%. Across 3 years with reported emissions, the highest was 2024 (8,571 t) and the lowest 2019 (2,579 t). Its efficiency percentile within the type went from 59 in 2019 to 68 in 2024 (lower is more efficient). Of the 2 sister ships listed below with a 2024 return, 1 reported a lower CO₂ per nautical mile than this vessel.
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2024 | 8,571 | 2,708 | 34,479 | 3,472 | 401 | 248.6 | 21.6 | 68 |
| 2021 | 5,600 | 1,768 | 27,712 | 2,240 | 726 | 202.1 | 24.5 | 75 |
| 2019 | 2,579 | 827 | 10,656 | 977 | 76 | 242.1 | 18.5 | 59 |
Vessel particulars
- IMO number
- 9412725
- Ship type
- Chemical tanker
- Gross tonnage
- 11,561
- Length overall
- 141.0 m
- Year built
- 2009
- Flag state
- South Korea per EU MRV 2025
- Builder
- Kitanihon Shipbuilding
- Port of registry
- Jeju MRV 2024
- Technical efficiency (design)
- EEXI (7.81 gCO₂/t·nm)
- Verifier
- Korean Register, Korea, Republic of
- Accreditation
- D-VS-20824-01-00
- Compliance document issued
- 2025-03-31
- Compliance document expires
- 2026-06-30
Efficiency against its own type2024
Position 808 of 1,194 qualifying chemical tankers by EEOI, at the 68th percentile. The dashed line is the type median, 15.9; this vessel reported 21.6.
EEOI divides emissions by transport work, which for this vessel and year was 396,263,985 tonne-miles over 34,479 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2024 was 232.3% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2020, 2022, 2023, so the series has gaps.
From 2021 to 2024, emissions rose 53.1% while distance sailed rose 24.4%and CO₂ per nautical mile rose 23.0%.
Where the 2024 emissions occurred
Methane, nitrous oxide and EU ETS2024
- Total CO₂ equivalent
- 8,704 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.49 t
- Under EU ETS
- 6,177 t, 72% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2021 | Nippon Kaiji Kyokai | Japan |
| 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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 MRV reporting years, an efficiency ranking and 5 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.