Bulk carrier · Sierra Leone flag · built 1995
BOSPHORUS KING: CO₂ emissions 2018–2025
IMO 9111357 EU ETS7 reporting years
- CO₂ reported 2025
- 2,196 t
- Fuel burned
- 692 t
- Distance
- 11,570 nm
- Time at sea
- 1,421 h
- Emitted at berth
- 9% of total
- Share of year under way
- 16%
- Gross tonnage
- 16,418
BOSPHORUS KING against its type
Built in 1995, it is 17 years older than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 16,418 gross tonnage it is smaller than 96% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 22 bulk carriers here under the Sierra Leone flag, 0.3% of the 8,138 on the register. The same builder is recorded for 35 other vessels here, 2 of them bulk carriers. Its MRV returns name it BOSPHORUS KING for 2018–2022 and OSMAN BEY for 2023–2025. The reported port of registry changed: PANAMA (2018–2022), then FREETOWN (2023–2025).
Its 2,196 t of CO₂ for 2025 is 32% 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 189.8 kg CO₂, 27% below the type median of 260.7 kg. It logged 1,421 hours at sea against a median of 1,200 hours for its type that year. 9.1% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 7 years with reported emissions, the highest was 2019 (2,487 t) and the lowest 2018 (1,265 t). Its efficiency percentile within the type went from 95 in 2019 to 94 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 | 2,196 | 692 | 11,570 | 1,421 | 199 | 189.8 | 14.6 | 94 |
| 2024 | 1,552 | 496 | — | 926 | 13 | 182.0 | 26.8 | not ranked |
| 2023 | 1,475 | 469 | — | 1,436 | 137 | 254.0 | 22.4 | not ranked |
| 2022 | 1,627 | 511 | — | 2,139 | 118 | 188.0 | 18.4 | not ranked |
| 2021 | 1,950 | 618 | 8,324 | 834 | 81 | 234.3 | 11.2 | 78 |
| 2019 | 2,487 | 792 | 13,734 | 1,192 | 274 | 181.1 | 16.5 | 95 |
| 2018 | 1,265 | 403 | — | 598 | 49 | 198.3 | 12.7 | not ranked |
Vessel particulars
- IMO number
- 9111357
- Previously reported as
- OSMAN BEY
- Ship type
- Bulk carrier
- Gross tonnage
- 16,418
- Length overall
- 165.0 m
- Beam
- 27.0 m
- Year built
- 1995
- Flag state
- Sierra Leone per EU MRV 2025
- Port of registry
- FREETOWN MRV 2025
- Technical efficiency (design)
- EIV (6.9 gCO₂/t·nm)
- Verifier
- Dromon Bureau of Shipping, Greece
- Accreditation
- 1128
- Compliance document issued
- 2026-02-18
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 3,039 of 3,241 qualifying bulk carriers by EEOI, at the 94th percentile. The dashed line is the type median, 7.6; this vessel reported 14.6.
EEOI divides emissions by transport work, which for this vessel and year was 150,329,911 tonne-miles over 11,570 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 73.6% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, so the series has gaps.
From 2024 to 2025, emissions rose 41.5% and CO₂ per nautical mile rose 4.3%.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
- 2,230 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.12 t
- Under EU ETS
- 1,211 t, 55% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Nippon Kaiji Kyokai | Japan |
| 2023 | Dromon Bureau of Shipping | Greece |
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).
This page draws on 7 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.