Navalyze · Chemical tanker · Ship

LIBERA

IMO: 9293973
Type: Chemical tanker
Average cargo carried: 15,020 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 5.53 g CO₂/t·nm

ISM company (DoC holder) in 2025: Medcare Shipping SA

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 15,020 t of cargo on average.

Fuel kg/nm

87.4

Chemical tanker median 79.7 kg/nm (+10%)

CO₂ per transport work (cargo)

18.3

g CO₂/t·nm · Chemical tanker median 15.0 (+22%)

Average speed

9.9 kn

Chemical tanker median 11.1 kn (−11%)

Fuel per day at sea

20.9 t/day

Fuel consumed

2,927 t

CO₂ emitted

9,204 t

9,348 t CO₂eq incl. CH₄ and N₂O

Distance sailed

33,486 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,366 h

140 days, 38% 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 kg/nmThis ship 87.4 kg/nm · median 79.7 (+10%)

52.8Ranks 927 of 1,460, lowest first111

Average speedThis ship 9.9 kn · median 11.1 (−11%)

8.8Faster than 23% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 18.3 g CO₂/t·nm · median 15.0 (+22%)

7.93Ranks 888 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports44%
From the EU20%
Into the EU23%
At berth in the EU12%

64% of this ship's CO₂ falls under the EU ETS (5,868 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,099 t

11.9% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+144 t

+1.6% CO₂eq on top of CO₂ alone, 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 kg/nm

LIBERA
Chemical tanker median

70.080.090.0100.0110.0120.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

LIBERA
Chemical tanker median

6.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

LIBERA
Chemical tanker median

15.020.025.030.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.1 kn	−23%	−23%	+16%	+4%	Same speed, fuel per mile down 23%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.2 kn	+9%	+7%	−19%	−1%	Same speed, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.1 kn	+10%	−0%	+11%	+0%	1.1 kn slower, fuel per mile up 10%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.8 kn	+10%	+46%	+48%	+6%	2.8 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.6 kn	−19%	−32%	−21%	−8%	1.6 kn slower, fuel per mile down 19%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.5 kn	+24%	+63%	−6%	+19%	2.5 kn faster, fuel per mile up 24%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.3 kn	−19%	−16%	+48%	−39%	Same speed, fuel per mile down 19%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Medcare Shipping SA	2,927	9,204	33,486	3,366	9.9	87.4	18.3	–
2024	Medcare Shipping SA	3,261	10,264	28,863	2,875	10.0	113	17.7	–
2023	not published	3,685	11,559	35,431	3,469	10.2	104	17.8	–
2022	not published	3,032	9,511	32,025	2,841	11.3	94.7	17.7	–
2021	not published	1,857	5,826	21,573	2,549	8.5	86.1	16.7	–
2020	not published	2,890	9,097	27,241	2,686	10.1	106	18.3	–
2019	not published	2,478	7,771	28,863	3,774	7.6	85.9	15.3	–
2018	not published	2,070	6,482	19,455	2,653	7.3	106	25.1	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Medcare Shipping SA	18.3	15.0	+22%	888 of 1,460	ICS Verification Services	A
2024	Medcare Shipping SA	17.7	16.7	+6%	687 of 1,274	ICS Verification Services	A
2023	not published	17.8	16.2	+10%	719 of 1,314	ICS Verification Services	A
2022	not published	17.7	16.1	+10%	786 of 1,409	ICS Verification Services	A
2021	not published	16.7	16.7	+0%	678 of 1,343	ICS Verification Services	A
2020	not published	18.3	16.2	+13%	781 of 1,312	ICS Verification Services	A
2019	not published	15.3	17.3	−11%	535 of 1,321	ICS Verification Services	A
2018	not published	25.1	17.1	+47%	949 of 1,294	ICS Verification Services	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.