Chemical tanker · Marshall Islands flag · built 2017
CS ANTHEM: CO₂ emissions 2018–2025
IMO 9785691 EU ETS8 reporting years
- CO₂ reported 2025
- 2,159 t
- Fuel burned
- 685 t
- Time at sea
- 499 h
- Share of year under way
- 6%
- Gross tonnage
- 29,738
CS ANTHEM against its type
Built in 2017, it is 7 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,738 gross tonnage it is larger than 83% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 474 chemical tankers here under the Marshall Islands flag, 20.2% of the 2,344 on the register. The same builder is recorded for 983 other vessels here, 330 of them chemical tankers. Its MRV returns name it STI BOSPHORUS for 2018–2024 and CS ANTHEM for 2025. The reported port of registry changed: Majuro (2018–2024), then JACKSONVILLE FL (2025).
Its 2,159 t of CO₂ for 2025 is 61% below the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 331.4 kg CO₂, 32% above the type median of 250.2 kg. It logged 499 hours at sea against a median of 2,109 hours for its type that year. 0.0% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2021 (5,601 t) and the lowest 2025 (2,159 t). Its efficiency percentile within the type went from 33 in 2018 to 50 in 2024 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 6 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 | 2,159 | 685 | — | 499 | 0 | 331.4 | — | — |
| 2024 | 2,568 | 820 | 9,555 | 793 | 215 | 268.8 | 7.6 | 50 |
| 2023 | 2,951 | 945 | 12,775 | 1,013 | 34 | 231.0 | 8.1 | 51 |
| 2022 | 2,555 | 814 | 9,960 | 872 | 130 | 256.5 | 7.0 | 38 |
| 2021 | 5,601 | 1,789 | 19,574 | 1,974 | 136 | 286.1 | 12.6 | 76 |
| 2020 | 3,504 | 1,119 | 14,923 | 1,303 | 136 | 234.8 | 9.4 | 56 |
| 2019 | 5,062 | 1,611 | 18,493 | 1,685 | 797 | 273.8 | 7.5 | 39 |
| 2018 | 2,486 | 787 | 11,140 | 953 | 328 | 223.2 | 6.9 | 33 |
Vessel particulars
- IMO number
- 9785691
- Previously reported as
- STI BOSPHORUS
- Ship type
- Chemical tanker
- Gross tonnage
- 29,738
- Length overall
- 183.3 m
- Year built
- 2017
- Flag state
- Marshall Islands Wikidata/AIS, undated
- Builder
- HD Hyundai Mipo
- Port of registry
- JACKSONVILLE FL MRV 2025
- Technical efficiency (design)
- EEXI (4.48 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-26
- Compliance document expires
- 2027-06-30
Efficiency against its own type2024
Position 776 of 1,566 qualifying oil tankers by EEOI, at the 50th percentile. The dashed line is the type median, 7.6; this vessel reported 7.6.
EEOI divides emissions by transport work, which for this vessel and year was 339,247,028 tonne-miles over 9,555 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 13.2% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 15.9% and CO₂ per nautical mile rose 23.3%.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
- 2,192 t
- Methane (CH₄)
- 0.03 t
- Nitrous oxide (N₂O)
- 0.12 t
- Under EU ETS
- 1,079 t, 50% of total
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.