Bulk carrier · Marshall Islands flag · built 2015
RUBY: CO₂ emissions 2018–2025
IMO 9714707 EU ETS6 reporting years
- CO₂ reported 2025
- 3,201 t
- Fuel burned
- 1,008 t
- Distance
- 13,947 nm
- Time at sea
- 1,262 h
- Emitted at berth
- 6% of total
- Share of year under way
- 14%
- Gross tonnage
- 34,835
RUBY against its type
Built in 2015, it is 3 years newer than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 34,835 gross tonnage it is larger than 50% 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 323 other vessels here, 238 of them bulk carriers. Its MRV returns name it SBI TANGO for 2018–2020 and RUBY for 2023–2025. The returns for 2018–2025 all give Majuro as port of registry.
Its 3,201 t of CO₂ for 2025 is close to the median of 3,239 t among the 3,731 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 229.5 kg CO₂, 12% below the type median of 260.7 kg. It logged 1,262 hours at sea against a median of 1,200 hours for its type that year. 6.0% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 6 years with reported emissions, the highest was 2024 (5,080 t) and the lowest 2019 (943 t). Its efficiency percentile within the type went from 16 in 2019 to 74 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 3 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 | 3,201 | 1,008 | 13,947 | 1,262 | 193 | 229.5 | 9.6 | 74 |
| 2024 | 5,080 | 1,612 | 20,393 | 1,841 | 340 | 249.1 | 5.6 | 19 |
| 2023 | 3,482 | 1,104 | 14,851 | 1,371 | 168 | 234.4 | 7.3 | 41 |
| 2020 | 1,668 | 528 | 6,362 | 753 | 285 | 262.2 | 8.3 | 53 |
| 2019 | 943 | 300 | 4,080 | 438 | 73 | 231.1 | 5.5 | 16 |
| 2018 | 3,556 | 1,142 | — | 1,790 | 43 | 212.5 | 184.8 | not ranked |
Vessel particulars
- IMO number
- 9714707
- Previously reported as
- SBI TANGO
- Ship type
- Bulk carrier
- Gross tonnage
- 34,835
- Length overall
- 199.9 m
- Beam
- 32.2 m
- Year built
- 2015
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- Imabari Shipbuilding
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (4.01 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-10
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 2,406 of 3,241 qualifying bulk carriers by EEOI, at the 74th percentile. The dashed line is the type median, 7.6; this vessel reported 9.6.
EEOI divides emissions by transport work, which for this vessel and year was 333,416,667 tonne-miles over 13,947 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 10.0% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2022, so the series has gaps.
From 2024 to 2025, emissions fell 37.0% while distance sailed fell 31.6%and CO₂ per nautical mile fell 7.9%.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
- 3,250 t
- Methane (CH₄)
- 0.05 t
- Nitrous oxide (N₂O)
- 0.18 t
- Under EU ETS
- 1,759 t, 55% of total
Laden voyages2025
- CO₂ on laden voyages
- 1,666 t, 52% of total
- Fuel, laden
- 527 t
- CO₂ per nm, laden
- 200.1 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2023 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | 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 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.