Bulk carrier · Marshall Islands flag · built 2018
CMB RUBENS: CO₂ emissions 2019–2025
IMO 9832640 EU ETS6 reporting years
- CO₂ reported 2024
- 988 t
- Fuel burned
- 317 t
- Distance
- 4,997 nm
- Time at sea
- 444 h
- Share of year under way
- 5%
- Gross tonnage
- 35,834
CMB RUBENS against its type
Built in 2018, it is 6 years newer than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 35,834 gross tonnage it is larger than 53% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 1,603 bulk carriers here under the Marshall Islands flag, 19.7% of the 8,138 on the register. The same builder is recorded for 79 other vessels here, 77 of them bulk carriers. Its MRV returns name it CMB RUBENS for 2019–2024 and ZY DONGSHA for 2025. The returns for 2019–2025 all give MAJURO as port of registry.
Its 988 t of CO₂ for 2024 is 71% below the median of 3,377 t among the 3,676 bulk carriers on this register that reported for 2024. Per nautical mile it emitted 197.7 kg CO₂, 25% below the type median of 264.0 kg. It logged 444 hours at sea against a median of 1,238 hours for its type that year. 0.0% of its 2024 emissions were at berth; the median for bulk carriers was 2.9%. Across 5 years with reported emissions, the highest was 2021 (2,432 t) and the lowest 2024 (988 t). Its efficiency percentile within the type went from 12 in 2019 to 29 in 2024 (lower is more efficient). Of the 3 sister ships listed below with a 2024 return, 0 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 | 988 | 317 | 4,997 | 444 | 0 | 197.7 | 6.4 | 29 |
| 2022 | 1,686 | 540 | 7,136 | 602 | 261 | 236.3 | 6.5 | 25 |
| 2021 | 2,432 | 776 | 9,068 | 764 | 26 | 268.3 | 27.3 | 99 |
| 2020 | 1,849 | 593 | 7,202 | 667 | 116 | 256.8 | 7.2 | 38 |
| 2019 | 2,205 | 707 | 8,460 | 754 | 56 | 260.6 | 5.1 | 12 |
Vessel particulars
- IMO number
- 9832640
- Previously reported as
- ZY DONGSHA
- Ship type
- Bulk carrier
- Gross tonnage
- 35,834
- Length overall
- 199.9 m
- Beam
- 32.0 m
- Year built
- 2018
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- Shin Kasado Dockyard
- Port of registry
- MAJURO MRV 2024
- Technical efficiency (design)
- EEDI (3.68 gCO₂/t·nm)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2025-09-08
- Compliance document expires
- 2026-06-30
Efficiency against its own type2024
Position 845 of 2,858 qualifying bulk carriers by EEOI, at the 29th percentile. The dashed line is the type median, 7.9; this vessel reported 6.4.
EEOI divides emissions by transport work, which for this vessel and year was 153,637,636 tonne-miles over 4,997 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2024 was 55.2% lower than in 2019, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.
From 2022 to 2024, emissions fell 41.4% while distance sailed fell 30.0%and CO₂ per nautical mile fell 16.3%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2024 emissions occurred
Methane, nitrous oxide and EU ETS2024
- Total CO₂ equivalent
- 1,003 t
- Methane (CH₄)
- 0.02 t
- Nitrous oxide (N₂O)
- 0.06 t
- Under EU ETS
- 506 t, 51% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | Nippon Kaiji Kyokai | Japan |
| 2025 | CHINA CLASSIFICATION SOCIETY | China |
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 6 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.