Bulk carrier · Portugal flag · built 2010
KALLISTI GS: CO₂ emissions 2018–2025
IMO 9494814 EU ETS8 reporting years
- CO₂ reported 2025
- 2,186 t
- Fuel burned
- 695 t
- Distance
- 9,965 nm
- Time at sea
- 992 h
- Emitted at berth
- 7% of total
- Share of year under way
- 11%
- Gross tonnage
- 19,785
KALLISTI GS against its type
Built in 2010, it is 2 years older than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 19,785 gross tonnage it is smaller than 92% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 157 bulk carriers here under the Portugal flag, 1.9% of the 8,138 on the register. The same builder is recorded for 109 other vessels here, 72 of them bulk carriers. Its MRV returns name it UNION ANTON for 2018–2020, KALLISTI GS for 2021–2024 and TRUE PRESTIGE for 2025. The reported port of registry changed: Majuro (2018–2024), then Madeira (2025).
Its 2,186 t of CO₂ for 2025 is 33% 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 219.4 kg CO₂, 16% below the type median of 260.7 kg. It logged 992 hours at sea against a median of 1,200 hours for its type that year. 7.4% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 8 years with reported emissions, the highest was 2018 (5,766 t) and the lowest 2024 (292 t). Its efficiency percentile within the type went from 76 in 2018 to 86 in 2025 (lower is more efficient). Of the 3 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 | 2,186 | 695 | 9,965 | 992 | 161 | 219.4 | 11.5 | 86 |
| 2024 | 292 | 91 | — | 117 | 0 | 396.5 | — | — |
| 2023 | 4,072 | 1,295 | 18,480 | 1,748 | 131 | 220.4 | 8.3 | 54 |
| 2022 | 3,244 | 1,037 | 14,530 | 1,252 | 134 | 223.2 | 10.9 | 74 |
| 2021 | 2,396 | 757 | 9,778 | 913 | 125 | 245.0 | 14.6 | 92 |
| 2020 | 2,503 | 791 | 11,061 | 913 | 23 | 226.3 | 9.5 | 67 |
| 2019 | 3,422 | 1,092 | 15,372 | 2,405 | 246 | 222.6 | 9.3 | 63 |
| 2018 | 5,766 | 1,834 | 23,084 | 2,381 | 150 | 249.8 | 10.7 | 76 |
Vessel particulars
- IMO number
- 9494814
- Previously reported as
- UNION ANTON, TRUE PRESTIGE
- Ship type
- Bulk carrier
- Gross tonnage
- 19,785
- Length overall
- 175.5 m
- Year built
- 2010
- Flag state
- Portugal 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
- Hakodate Dock
- Port of registry
- Madeira MRV 2025
- Technical efficiency (design)
- EIV (7.07 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-04-13
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 2,784 of 3,241 qualifying bulk carriers by EEOI, at the 86th percentile. The dashed line is the type median, 7.6; this vessel reported 11.5.
EEOI divides emissions by transport work, which for this vessel and year was 189,920,938 tonne-miles over 9,965 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 62.1% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 649.0% and CO₂ per nautical mile fell 44.7%.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
- 2,220 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.13 t
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | ICS Verification Services Single Member P.C. | Greece |
| 2021 | HELLENIC LLOYD'S S.A. | Greece |
| 2025 | NORMEC VERIFAVIA SAS | France |
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 8 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.