Navalyze · Chemical tanker · Ship

NAVIG8 CONSTELLATION

IMO: 9489118
Type: Chemical tanker
Average cargo carried: 36,457 t
Port of registry: Singapore
Technical efficiency: EIV 7.24 g CO₂/t·nm

ISM company (DoC holder) in 2025: Suntech Ship management Pte Ltd

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 36,457 t of cargo on average.

Fuel per mile

139.6 kg/nm

Chemical tanker median 79.7 kg/nm (+75%)

CO₂ per transport work (cargo)

11.95

g CO₂/t·nm · Chemical tanker median 15.04 (−21%)

Average speed

11.5 kn

Chemical tanker median 11.1 kn (+4%)

Fuel per day at sea

38.6 t/day

Fuel consumed

1,625 t

CO₂ emitted

5,072 t

5,152 t CO₂eq incl. CH₄ and N₂O

Distance sailed

11,643 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,011 h

42 days, 12% 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 139.6 kg/nm · median 79.7 (+75%)

52.8Ranks 1,440 of 1,460, lowest first111.0

Average speedThis ship 11.5 kn · median 11.1 (+4%)

8.8Faster than 63% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 11.95 g CO₂/t·nm · median 15.04 (−21%)

7.93Ranks 492 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 ports10%
From the EU32%
Into the EU44%
At berth in the EU14%

62% of this ship's CO₂ falls under the EU ETS (3,163 t).

Fuel burned laden

–

Not reported

CO₂ at berth

14.4%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

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

NAVIG8 CONSTELLATION
Chemical tanker median

60.080.0100.0120.0140.0160.0

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

Average speed, kn

NAVIG8 CONSTELLATION
Chemical tanker median

10.011.012.013.014.0

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

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

NAVIG8 CONSTELLATION
Chemical tanker median

5.010.015.020.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+0.8 kn	+13%	+22%	+21%	+20%	0.8 kn faster, fuel per mile up 13%; in line with the speed change.
2023→2024	−2.0 kn	−8%	−22%	−71%	−10%	2.0 kn slower, fuel per mile down 8%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.3 kn	−5%	+7%	+123%	−20%	1.3 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.0 kn	−1%	−1%	−47%	+16%	Same speed, fuel per mile flat.
2020→2021	−0.6 kn	+56%	+49%	+28%	+57%	0.6 kn slower, fuel per mile up 56%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−1.6 kn	+11%	−3%	+43%	+13%	1.6 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+2.2 kn	−25%	−10%	+52%	−45%	2.2 kn faster, fuel per mile down 25%; 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	Suntech Ship management Pte Ltd	1,625	5,072	11,643	1,011	11.5	139.6	11.95	–
2024	Suntech Ship management Pte Ltd	1,189	3,711	9,655	900	10.7	123.1	9.98	–
2023	not published	4,464	13,946	33,380	2,623	12.7	133.7	11.11	–
2022	not published	2,100	6,569	14,982	1,315	11.4	140.2	13.92	–
2021	not published	3,978	12,447	28,083	2,460	11.4	141.7	12.00	–
2020	not published	1,980	6,200	21,856	1,826	12.0	90.6	7.63	–
2019	not published	1,248	3,920	15,327	1,124	13.6	81.4	6.78	–
2018	not published	1,091	3,409	10,097	886	11.4	108.1	12.35	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Suntech Ship management Pte Ltd	11.95	15.04	−21%	492 of 1,460	Korean Register	B+C
2024	Suntech Ship management Pte Ltd	9.98	16.73	−40%	246 of 1,274	Korean Register	–
2023	not published	11.11	16.23	−32%	297 of 1,314	Korean Register	–
2022	not published	13.92	16.06	−13%	547 of 1,409	Korean Register	A
2021	not published	12.00	16.69	−28%	332 of 1,343	Korean Register	A
2020	not published	7.63	16.16	−53%	49 of 1,312	Korean Register	B+C
2019	not published	6.78	17.32	−61%	16 of 1,321	Korean Register	A
2018	not published	12.35	17.14	−28%	355 of 1,294	Korean Register	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.