Container ship · Liberia flag · built 2009

ALS JUNO: CO₂ emissions 2019–2025

IMO 9431719 EU ETS5 reporting years

CO₂ reported 2025: 29,405 t
Fuel burned: 9,349 t
Distance: 52,792 nm
Time at sea: 3,755 h
Emitted at berth: 4% of total
Share of year under way: 43%
Gross tonnage: 40,541

ALS JUNO against its type

Built in 2009, it is 1 year newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 40,541 gross tonnage it is smaller than 55% of the other 3,000 container ships with a recorded tonnage. It is one of 976 container ships here under the Liberia flag, 27.9% of the 3,495 on the register. The same builder is recorded for 21 other vessels here, 10 of them container ships. Its MRV returns name it ALS JUNO for 2019–2020 and ZIM IBERIA for 2023–2025. The reported port of registry changed: Singapore (2019–2020), then Monrovia (2023–2025).

Its 29,405 t of CO₂ for 2025 is 1.8 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 557.0 kg CO₂, close to the type median of 545.6 kg. It logged 3,755 hours at sea against a median of 3,155 hours for its type that year. 4.0% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 5 years with reported emissions, the highest was 2024 (35,579 t) and the lowest 2019 (10,162 t). Its efficiency percentile within the type went from 63 in 2019 to 72 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	29,405	9,349	52,792	3,755	1,188	557.0	21.3	72
2024	35,579	11,392	70,130	5,077	955	507.3	19.8	66
2023	16,119	5,160	34,359	2,419	519	469.1	23.1	66
2020	33,488	10,582	65,384	4,616	976	512.2	17.0	54
2019	10,162	3,250	17,629	2,356	291	576.5	20.9	63

Vessel particulars

IMO number: 9431719
Previously reported as: ZIM IBERIA
Ship type: Container ship
Gross tonnage: 40,541
Length overall: 261.1 m
Beam: 32.4 m
Year built: 2009
Flag state: Liberia per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Singapore. The flag shown is from the newest official source, the EU MRV return for 2025.
Builder: Jiangsu New Yangzi Shipbuilding
Port of registry: MONROVIA MRV 2025
Technical efficiency (design): EEXI (13.84 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-02-19
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 1,315 of 1,838 qualifying container ships by EEOI, at the 72nd percentile. The dashed line is the type median, 14.2; this vessel reported 21.3.

EEOI divides emissions by transport work, which for this vessel and year was 1,381,809,210 tonne-miles over 52,792 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 189.4% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2021, 2022, so the series has gaps.

From 2024 to 2025, emissions fell 17.4% while distance sailed fell 24.7%and CO₂ per nautical mile rose 9.8%.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: 29,864 t
Methane (CH₄): 0.47 t
Nitrous oxide (N₂O): 1.68 t
Under EU ETS: 9,101 t, 31% 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 5 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.