Chemical tanker · Türkiye flag · built 2006

ARIONAS

IMO 9315757 EU ETS8 reporting years

CO₂ reported 2025: 2,913 t
Fuel burned: 923 t
Distance: 10,077 nm
Time at sea: 918 h
Emitted at berth: 13% of total
Share of year under way: 10%
Gross tonnage: 23,270

Vessel particulars

IMO number: 9315757
Previously reported as: HACI KEMAL KA
Ship type: Chemical tanker
Gross tonnage: 23,270
Length overall: 184.2 m
Beam: 27.4 m
Year built: 2006
Flag state: Türkiye
Builder: HD Hyundai Mipo
Port of registry: İSTANBUL
Home port: İSTANBUL
Ice class: IA Super
Technical efficiency (design): EEXI (5.66 gCO₂/t·nm)
Verifier: AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
Accreditation: 1083-2
Compliance document issued: 2026-03-30
Compliance document expires: 2027-06-30

Flag state is derived from the reported port of registry, not reported directly, and reflects the registry at the time of reporting.

Efficiency against its own type2025

Position 863 of 1,348 qualifying chemical tankers by EEOI, at the 64th percentile. The dashed line is the type median, 14.4; this vessel reported 18.2.

EEOI divides emissions by transport work, which for this vessel and year was 159,723,136 tonn-nmover 10,077 nautical miles.

Reported CO₂ by year

Between 2018 and 2025 reported CO₂ fell by 73.9%.

From 2024 to 2025, emissions rose 105.9% while distance sailed rose 122.4%and CO₂ per nautical mile fell 7.4%.That points mainly to how much the vessel sailed, rather than the other.

Annual returns2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	2,913	923	10,077	918	381	289.1	18.2	64
2024	1,415	447	4,531	678	61	312.2	13.6	40
2023	4,409	1,396	14,188	1,216	123	310.8	17.2	56
2022	420	132	—	97	31	338.6	25.6	not ranked
2021	2,759	872	6,526	608	844	422.8	18.4	61
2020	8,801	2,796	28,998	2,650	748	303.5	21.3	71
2019	6,519	2,077	20,198	1,901	405	322.7	12.4	28
2018	11,179	3,567	38,257	3,488	658	292.2	17.1	53

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 2,959 t
Methane (CH₄): 0.05 t
Nitrous oxide (N₂O): 0.17 t
Under EU ETS: 1,647 t, 57% of total

Laden voyages2025

CO₂ on laden voyages: 1,291 t, 44% of total
Fuel, laden: 409 t
CO₂ per nm, laden: 254.3 kg

The share carried on laden voyages separates productive sailing from ballast legs. For tankers, bulkers and ro-ro vessels that split is the operational question; a low laden share means the ship spent much of the year moving empty.

Verifier history

From reporting year	Verifier	Accredited in
2018	Lloyd's Register Quality Assurance Ltd	United Kingdom
2019	HELLENIC LLOYD'S S.A.	Greece
2021	AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD)	Greece

A change of accredited verifier is shown because it matters for audit and data continuity. It is not in itself a sign of anything being wrong.

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).

What this page is built on

Reporting years: 8
Ranked by efficiency: yes
Vessel particulars: 5 of 5
Movement data: not observed
Name history: yes
Photograph: none licensed
Sanctions record: none
Inspection record: none in US waters

Caveats that apply to every vessel page

EEOI above 100,000 is withheld. Those values come from returns where reported transport work is near zero, which makes the ratio meaningless rather than extreme. Median across the dataset is around 12.

Emission categories overlap. In the MRV return, emissions at berth are also counted inside the voyage legs, so the categories do not sum to the total. They are shown side by side rather than stacked for that reason.

Distance is derived, intensity is reported. The MRV return publishes CO₂ per nautical mile but not the distance itself, which is null in all 106,564 rows of the source. The distance column is therefore filled from the ranking step, which reconstructs it, and is blank for years where a vessel was not ranked. That is why a row can show an intensity without a distance.

Percentile is within type and year. It is the vessel's position among qualifying ships of the same type that year, where lower is more efficient. A blank means the vessel did not qualify for ranking that year.

Sister ships share a builder, a type and a build year within two years of this vessel. That holds hull and machinery roughly constant and leaves operation as the variable, which is why they are listed before nearest-by-tonnage.

Methane and nitrous oxide start in 2024. They were not reported before that period, so earlier years cannot be compared against them.

Technical efficiency is a design figure fixed at construction. A vessel can hold a good index and still emit heavily by sailing fast, waiting at anchor or carrying little.

Inspection records cover United States waters only. An empty record is not evidence of a clean history elsewhere.

Empty means unreported, never zero. Nothing here is modelled, estimated or interpolated. See the methodology.

Something wrong on this page? See corrections. We do not hold the source registers and cannot amend them, but we will fix anything we have got wrong in reproducing them.