Bulk carrier · Liberia flag · built 2012
STAR CHALLENGER: CO₂ emissions 2018–2025
IMO 9632997 EU ETS6 reporting years
- CO₂ reported 2025
- 1,982 t
- Fuel burned
- 632 t
- Distance
- 6,391 nm
- Time at sea
- 636 h
- Emitted at berth
- 1% of total
- Share of year under way
- 7%
- Gross tonnage
- 34,777
STAR CHALLENGER against its type
Built in 2012, it is the same age as the median bulk carrier on this register (build year 2012, 6,882 vessels with a known build year). At 34,777 gross tonnage it is smaller than 51% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 1,589 bulk carriers here under the Liberia flag, 19.5% of the 8,138 on the register. The same builder is recorded for 114 other vessels here, 76 of them bulk carriers. The reported port of registry changed: Majuro (2018–2023), then Monrovia (2025).
Its 1,982 t of CO₂ for 2025 is 39% below the median of 3,239 t among the 3,731 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 310.2 kg CO₂, 19% above the type median of 260.7 kg. It logged 636 hours at sea against a median of 1,200 hours for its type that year. 1.0% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 6 years with reported emissions, the highest was 2018 (7,756 t) and the lowest 2020 (1,658 t). Its efficiency percentile within the type went from 53 in 2018 to 28 in 2025 (lower is more efficient). Of the 2 sister ships listed below with a 2025 return, 1 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 | 1,982 | 632 | 6,391 | 636 | 20 | 310.2 | 6.1 | 28 |
| 2023 | 5,434 | 1,737 | 18,715 | 1,576 | 372 | 290.4 | 6.8 | 34 |
| 2022 | 4,028 | 1,290 | 14,071 | 1,287 | 134 | 286.3 | 7.7 | 39 |
| 2020 | 1,658 | 526 | 5,183 | 448 | 48 | 319.9 | 6.0 | 21 |
| 2019 | 3,225 | 1,030 | 10,879 | 1,642 | 206 | 296.4 | 8.3 | 52 |
| 2018 | 7,756 | 2,480 | 24,652 | 2,355 | 108 | 314.6 | 8.5 | 53 |
Vessel particulars
- IMO number
- 9632997
- Ship type
- Bulk carrier
- Gross tonnage
- 34,777
- Length overall
- 200.0 m
- Year built
- 2012
- Flag state
- Liberia 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
- Iwagi Zosen
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (4 gCO₂/t·nm)
- Verifier
- Bureau Veritas Certification France, France
- Accreditation
- 3-2047 rev. 4
- Compliance document issued
- 2026-03-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 896 of 3,241 qualifying bulk carriers by EEOI, at the 28th percentile. The dashed line is the type median, 7.6; this vessel reported 6.1.
EEOI divides emissions by transport work, which for this vessel and year was 324,959,016 tonne-miles over 6,391 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 74.4% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2024, so the series has gaps.
From 2023 to 2025, emissions fell 63.5% while distance sailed fell 65.8%and CO₂ per nautical mile rose 6.8%.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
- 2,013 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.11 t
- Under EU ETS
- 148 t, 7% of total
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 6 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.