Container ship · Hong Kong flag · built 2012

CSCL NEPTUNE: CO₂ emissions 2019–2025

IMO 9467316 EU ETS4 reporting years

CO₂ reported 2025: 48,292 t
Fuel burned: 15,484 t
Distance: 47,690 nm
Time at sea: 3,504 h
Emitted at berth: 2% of total
Share of year under way: 40%
Gross tonnage: 150,853

CSCL NEPTUNE against its type

Built in 2012, it is 4 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 150,853 gross tonnage it is larger than 91% of the other 3,000 container ships with a recorded tonnage. It is one of 202 container ships here under the Hong Kong flag, 5.8% of the 3,495 on the register. The same builder is recorded for 563 other vessels here, 243 of them container ships. China Shipping Container Lines is linked to 2 vessels on this register. The returns for 2019–2025 all give Hong Kong as port of registry.

Its 48,292 t of CO₂ for 2025 is 3.0 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 1,012.6 kg CO₂, 1.9 times the type median of 545.6 kg. It logged 3,504 hours at sea against a median of 3,155 hours for its type that year. 2.0% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 4 years with reported emissions, the highest was 2024 (59,040 t) and the lowest 2023 (21,680 t). Its efficiency percentile within the type went from 16 in 2019 to 34 in 2025 (lower is more efficient). The one sister ship listed below with a 2025 return reported a lower CO₂ per nautical mile.

Emissions by year2019–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	48,292	15,484	47,690	3,504	956	1,012.6	10.7	34
2024	59,040	18,919	54,346	3,732	1,010	1,086.4	11.6	34
2023	21,680	6,904	23,637	1,810	894	917.2	9.4	20
2019	36,519	11,697	39,096	2,465	573	934.1	8.8	16

Vessel particulars

IMO number: 9467316
Ship type: Container ship
Gross tonnage: 150,853
Length overall: 366.1 m
Beam: 51.2 m
Year built: 2012
Flag state: Hong Kong per EU MRV 2025
Builder: Samsung Heavy Industries
Port of registry: Hong Kong MRV 2025
Home port: Hong Kong
Technical efficiency (design): EEXI (8.67 gCO₂/t·nm)
Operator: China Shipping Container Lines
Verifier: CHINA CLASSIFICATION SOCIETY, China
Accreditation: 0003VV
Compliance document issued: 2026-03-26
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 634 of 1,838 qualifying container ships by EEOI, at the 34th percentile. The dashed line is the type median, 14.2; this vessel reported 10.7.

EEOI divides emissions by transport work, which for this vessel and year was 4,530,167,917 tonne-miles over 47,690 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 32.2% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, so the series has gaps.

From 2024 to 2025, emissions fell 18.2% while distance sailed fell 12.2%and CO₂ per nautical mile fell 6.8%.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: 49,052 t
Methane (CH₄): 0.77 t
Nitrous oxide (N₂O): 2.79 t
Under EU ETS: 28,075 t, 58% of total

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) and Wikimedia Commons.

This page draws on 4 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.