Navalyze · Chemical tanker · Ship

UIKKU

IMO: 9797814
Type: Chemical tanker
Average cargo carried: 12,513 t
Port of registry: Helsinki
Technical efficiency: EEXI 6.92 g CO₂/t·nm
Ice class: IA
Former names: STEN TOR

ISM company (DoC holder) in 2025: OSM Ship management Finland Oy · part of OSM Thome

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 12,513 t of cargo on average.

Fuel per mile

73.9 kg/nm

Chemical tanker median 79.7 kg/nm (−7%)

CO₂ per transport work (cargo)

18.93

g CO₂/t·nm · Chemical tanker median 15.04 (+26%)

Average speed

10.4 kn

Chemical tanker median 11.1 kn (−6%)

Fuel per day at sea

18.4 t/day

Fuel consumed

3,424 t

CO₂ emitted

10,977 t

11,145 t CO₂eq incl. CH₄ and N₂O

Distance sailed

46,338 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,454 h

186 days, 51% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical tanker ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel per mileThis ship 73.9 kg/nm · median 79.7 (−7%)

52.8Ranks 581 of 1,460, lowest first111.0

Average speedThis ship 10.4 kn · median 11.1 (−6%)

8.8Faster than 31% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 18.93 g CO₂/t·nm · median 15.04 (+26%)

7.93Ranks 907 of 1,460, lowest first40.17

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports84%
From the EU1%
Into the EU1%
At berth in the EU14%

99% of this ship's CO₂ falls under the EU ETS (10,890 t).

Fuel burned laden

–

Not reported

CO₂ at berth

14.3%

Alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

UIKKU
Chemical tanker median

40.060.080.0100.0120.0140.0

’182018’192019’212021’222022’232023’242024’252025

Average speed, kn

UIKKU
Chemical tanker median

7.08.09.010.011.012.0

’182018’192019’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

UIKKU
Chemical tanker median

5.010.015.020.025.0

’182018’192019’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+0.4 kn	+8%	+12%	+0%	−10%	0.4 kn faster, fuel per mile up 8%; in line with the speed change.
2023→2024	+0.1 kn	+9%	+10%	−10%	+7%	Same speed, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.5 kn	−5%	−9%	+11%	−20%	0.5 kn slower, fuel per mile down 5%; in line with the speed change.
2021→2022	+1.7 kn	−8%	+10%	+16%	−1%	1.7 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2019→2021	−0.2 kn	+37%	+34%	−20%	+37%	Same speed, fuel per mile up 37%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+1.2 kn	−22%	−9%	+228%	+4%	1.2 kn faster, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	OSM Ship management Finland Oy	3,424	10,977	46,338	4,454	10.4	73.9	18.93	–
2024	OSM Ship management Finland Oy	3,172	10,170	46,185	4,614	10.0	68.7	21.02	–
2023	not published	3,241	10,392	51,327	5,171	9.9	63.1	19.57	–
2022	not published	3,046	9,765	46,047	4,444	10.4	66.1	24.49	–
2021	not published	2,857	9,159	39,731	4,557	8.7	71.9	24.66	–
2019	not published	2,609	8,365	49,726	5,595	8.9	52.5	18.01	–
2018	not published	1,013	3,204	15,146	1,976	7.7	66.9	17.33	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	OSM Ship management Finland Oy	18.93	15.04	+26%	907 of 1,460	DNV	B+C
2024	OSM Ship management Finland Oy	21.02	16.73	+26%	804 of 1,274	DNV	B+C
2023	not published	19.57	8.44	+132%	1,533 of 1,797	DNV	C
2022	not published	24.49	8.51	+188%	1,757 of 1,961	DNV	C
2021	not published	24.66	8.86	+178%	1,599 of 1,789	DNV	C
2019	not published	18.01	17.32	+4%	703 of 1,321	DNV	A
2018	not published	17.33	17.14	+1%	657 of 1,294	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical tanker ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's chemical tanker ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.