Bulk carrier · Marshall Islands flag · built 2006

ESTESUN: CO₂ emissions 2018–2025

IMO 9400588 EU ETS8 reporting years

CO₂ reported 2025: 3,034 t
Fuel burned: 955 t
Distance: 24,733 nm
Time at sea: 3,095 h
Emitted at berth: 4% of total
Share of year under way: 35%
Gross tonnage: 7,959

ESTESUN against its type

Built in 2006, it is 6 years older than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 7,959 gross tonnage it is smaller than 99% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 1,603 bulk carriers here under the Marshall Islands flag, 19.7% of the 8,138 on the register. Its MRV returns name it ESTESUN for 2018 and THOE for 2019–2025. The reported port of registry changed: Panama (2018), then Majuro (2019–2025).

Its 3,034 t of CO₂ for 2025 is close to the median of 3,239 t among the 3,731 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 122.7 kg CO₂, 53% below the type median of 260.7 kg. It logged 3,095 hours at sea against a median of 1,200 hours for its type that year. 4.2% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 8 years with reported emissions, the highest was 2018 (3,937 t) and the lowest 2021 (715 t). Its efficiency percentile within the type went from 95 in 2018 to 97 in 2025 (lower is more efficient). Of the 3 comparable vessels listed below with a 2025 return, 0 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	3,034	955	24,733	3,095	128	122.7	18.2	97
2024	1,300	411	—	1,185	36	115.1	20.9	not ranked
2023	1,714	541	14,968	1,539	81	114.5	16.8	94
2022	1,099	347	—	1,009	51	113.8	17.7	not ranked
2021	715	227	—	671	56	125.0	28.6	not ranked
2020	2,045	653	20,410	1,990	43	100.2	17.1	96
2019	2,795	892	24,785	4,817	81	112.8	17.1	96
2018	3,937	1,255	30,804	4,687	117	127.8	16.7	95

Vessel particulars

IMO number: 9400588
Previously reported as: THOE
Ship type: Bulk carrier
Gross tonnage: 7,959
Length overall: 135.8 m
Year built: 2006
Flag state: Marshall Islands per EU MRV 2025
Port of registry: Majuro MRV 2025
Technical efficiency (design): EEXI (9.51 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-03-18
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 3,151 of 3,241 qualifying bulk carriers by EEOI, at the 97th percentile. The dashed line is the type median, 7.6; this vessel reported 18.2.

EEOI divides emissions by transport work, which for this vessel and year was 166,989,543 tonne-miles over 24,733 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 22.9% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 133.4% and CO₂ per nautical mile rose 6.6%.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: 3,081 t
Methane (CH₄): 0.05 t
Nitrous oxide (N₂O): 0.17 t
Under EU ETS: 1,954 t, 64% 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, 4 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.