Chemical tanker · Malta flag · built 2015

CIELO DI ULSAN: CO₂ emissions 2018–2025

IMO 9717266 EU ETS8 reporting years

CO₂ reported 2025: 14,830 t
Fuel burned: 4,686 t
Distance: 38,904 nm
Time at sea: 3,996 h
Emitted at berth: 11% of total
Share of year under way: 46%
Gross tonnage: 24,184

CIELO DI ULSAN against its type

Built in 2015, it is 5 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 24,184 gross tonnage it is larger than 57% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 218 chemical tankers here under the Malta flag, 9.3% of the 2,344 on the register. The same builder is recorded for 77 other vessels here, 27 of them chemical tankers. The returns for 2018–2025 all give VALLETTA as port of registry.

Its 14,830 t of CO₂ for 2025 is 2.7 times the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 381.2 kg CO₂, 1.5 times the type median of 250.2 kg. It logged 3,996 hours at sea against a median of 2,109 hours for its type that year. 11.1% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2018 (18,545 t) and the lowest 2022 (10,495 t). Its efficiency percentile within the type went from 59 in 2018 to 71 in 2025 (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	14,830	4,686	38,904	3,996	1,642	381.2	21.2	71
2024	13,170	4,198	29,434	3,486	2,244	447.4	27.0	77
2023	11,869	3,758	36,420	4,034	2,429	325.9	24.2	73
2022	10,495	3,348	34,479	4,269	1,241	304.4	16.1	53
2021	13,798	4,357	37,721	3,960	1,628	365.8	21.8	71
2020	15,119	4,723	45,135	4,402	2,225	335.0	21.0	70
2019	16,663	5,262	51,907	5,949	2,350	321.0	19.2	62
2018	18,545	5,837	54,564	6,085	2,694	339.9	18.3	59

Vessel particulars

IMO number: 9717266
Ship type: Chemical tanker
Gross tonnage: 24,184
Length overall: 184.2 m
Beam: 27.4 m
Year built: 2015
Flag state: Malta per EU MRV 2025
Builder: HD Hyundai Vietnam Shipbuilding
Port of registry: VALLETTA MRV 2025
Ice class: IB
Technical efficiency (design): EEDI (5.09 gCO₂/t·nm)
Verifier: RINA Services Spa, Italy
Accreditation: 002O
Compliance document issued: 2026-04-14
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 962 of 1,348 qualifying chemical tankers by EEOI, at the 71st percentile. The dashed line is the type median, 14.4; this vessel reported 21.2.

EEOI divides emissions by transport work, which for this vessel and year was 697,864,941 tonne-miles over 38,904 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 20.0% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 12.6% while distance sailed rose 32.2%and CO₂ per nautical mile fell 14.8%.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: 15,060 t
Methane (CH₄): 0.23 t
Nitrous oxide (N₂O): 0.84 t
Under EU ETS: 11,906 t, 80% 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 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.