Bulk carrier · Marshall Islands flag · built 2011
FOUR BUTTERFLY: CO₂ emissions 2018–2025
IMO 9480708 EU ETS7 reporting years
- CO₂ reported 2025
- 4,082 t
- Fuel burned
- 1,300 t
- Distance
- 15,265 nm
- Time at sea
- 1,433 h
- Emitted at berth
- 6% of total
- Share of year under way
- 16%
- Gross tonnage
- 23,456
FOUR BUTTERFLY against its type
Built in 2011, it is 1 year older than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 23,456 gross tonnage it is smaller than 81% 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 180 other vessels here, 74 of them bulk carriers. Its MRV returns name it FOUR BUTTERFLY for 2018–2024 and MDS APHRODITE for 2025. The reported port of registry changed: La Valletta (2018–2019), then Valletta (2021–2024), then Majuro (2025).
Its 4,082 t of CO₂ for 2025 is 26% above the median of 3,239 t among the 3,731 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 267.4 kg CO₂, close to the type median of 260.7 kg. It logged 1,433 hours at sea against a median of 1,200 hours for its type that year. 5.7% 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 (25,547 t) and the lowest 2021 (2,405 t). Its efficiency percentile within the type went from 97 in 2018 to 87 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 4 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 | 4,082 | 1,300 | 15,265 | 1,433 | 234 | 267.4 | 11.7 | 87 |
| 2024 | 6,774 | 2,165 | 31,246 | 2,682 | 268 | 216.8 | 8.4 | 57 |
| 2023 | 5,534 | 1,756 | 22,447 | 2,012 | 341 | 246.5 | 8.8 | 60 |
| 2022 | 2,877 | 917 | 10,268 | 841 | 176 | 280.2 | 13.4 | 86 |
| 2021 | 2,405 | 768 | 7,597 | 687 | 23 | 316.5 | 13.7 | 90 |
| 2019 | 25,547 | 4,075 | 25,280 | 2,048 | 523 | 1,010.5 | 35.3 | 100 |
| 2018 | 11,522 | 1,839 | 21,583 | 1,960 | 269 | 533.8 | 20.2 | 97 |
Vessel particulars
- IMO number
- 9480708
- Previously reported as
- MDS APHRODITE
- Ship type
- Bulk carrier
- Gross tonnage
- 23,456
- Length overall
- 180.0 m
- Beam
- 30.0 m
- Year built
- 2011
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- SPP Shipbuilding Co., Ltd.
- Port of registry
- Majuro MRV 2025
- Home port
- Majuro
- Technical efficiency (design)
- EEXI (5.13 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
- 2026-04-09
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 2,815 of 3,241 qualifying bulk carriers by EEOI, at the 87th percentile. The dashed line is the type median, 7.6; this vessel reported 11.7.
EEOI divides emissions by transport work, which for this vessel and year was 347,717,206 tonne-miles over 15,265 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 64.6% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, so the series has gaps.
From 2024 to 2025, emissions fell 39.7% while distance sailed fell 51.1%and CO₂ per nautical mile rose 23.3%.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
- 4,146 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.23 t
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.