CASTOR: CO₂ emissions 2019–2025

CASTOR against its type

Built in 2019, it is 9 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,917 gross tonnage it is larger than 85% 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. The returns for 2019–2025 all give Majuro as port of registry.

Its 2,545 t of CO₂ for 2024 is 56% below the median of 5,830 t among the 1,451 chemical tankers on this register that reported for 2024. Per nautical mile it emitted 243.2 kg CO₂, close to the type median of 253.5 kg. It logged 966 hours at sea against a median of 2,177 hours for its type that year. 3.3% of its 2024 emissions were at berth; the median for chemical tankers was 5.9%. Across 6 years with reported emissions, the highest was 2021 (9,939 t) and the lowest 2024 (2,545 t). Its efficiency percentile within the type went from 24 in 2019 to 1 in 2024 (lower is more efficient). The one sister ship listed below with a 2024 return reported a higher or equal CO₂ per nautical mile.

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

Vessel particulars

IMO number

9864356

Ship type

Chemical tanker

Gross tonnage

29,917

Length overall

183.0 m

Beam

32.0 m

Year built

2019

Flag state

Marshall Islands per EU MRV 2025

Builder

HD Hyundai Mipo

Port of registry

Majuro MRV 2024

Technical efficiency (design)

EEXI (4.25 gCO₂/t·nm)

Verifier

DNV, Germany

Accreditation

VS-16026-01

Compliance document issued

2025-03-04

Compliance document expires

2026-06-30

Efficiency against its own type2024

Position 18 of 1,194 qualifying chemical tankers by EEOI, at the 1st percentile. The dashed line is the type median, 15.9; this vessel reported 6.5.

EEOI divides emissions by transport work, which for this vessel and year was 392,804,012 tonne-miles over 10,466 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2024 was 42.2% lower than in 2019, for EU/EEA voyages only.

From 2023 to 2024, emissions fell 31.5% while distance sailed fell 20.4%and CO₂ per nautical mile fell 14.0%.

Where the 2024 emissions occurred

Methane, nitrous oxide and EU ETS2024

Total CO₂ equivalent

2,585 t

Methane (CH₄)

0.04 t

Nitrous oxide (N₂O)

0.15 t

Under EU ETS

1,333 t, 52% of total

Verifier history

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 7 MRV reporting years, an efficiency ranking and 5 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.

Comparable vesselssister ships and nearest by tonnage

• MARVIN CONFIDENCE sister · 2018 · · 9,675 t · 300.7 kg/nm
• ION M sister · 2019 · · 7,191 t · 281.2 kg/nm
• SOLAR SHERIDAN sister · 2021 · 17,800 GT · 2,145 t · 178.3 kg/nm
• SOLAR SHARNA sister · 2020 · 17,915 GT · 7,543 t · 234.6 kg/nm
• GEMMA sister · 2018 · 26,548 GT · 9,627 t · 301.1 kg/nm
• DIADEMA sister · 2018 · 26,548 GT · 8,119 t · 274.5 kg/nm
• BRITISH CIRRUS sister · 2017 · 27,659 GT · 11,039 t · 325.7 kg/nm
• PALANCA MIAMI sister · 2017 · 28,013 GT · 1,874 t · 298.3 kg/nm