Navalyze · Chemical tanker · Ship

SEAWAYS GRACE

IMO: 9337511
Type: Chemical tanker
Average cargo carried: 17,453 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 4.97 g CO₂/t·nm
Former names: ATLANTIC GRACE

ISM company (DoC holder) in 2025: Heroic Hera Inc.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 17,453 t of cargo on average.

Fuel kg/nm

87.6

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

CO₂ per transport work (cargo)

15.8

g CO₂/t·nm · Chemical tanker median 15.0 (+5%)

Average speed

12.1 kn

Chemical tanker median 11.1 kn (+9%)

Fuel per day at sea

25.5 t/day

Fuel consumed

763 t

CO₂ emitted

2,406 t

2,443 t CO₂eq incl. CH₄ and N₂O

Distance sailed

8,718 nm

CO₂ ÷ CO₂ per mile

Time at sea

720 h

30 days, 8% 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 87.6 kg/nm · median 79.7 (+10%)

52.8Ranks 931 of 1,460, lowest first111

Average speedThis ship 12.1 kn · median 11.1 (+9%)

8.8Faster than 83% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 15.8 g CO₂/t·nm · median 15.0 (+5%)

7.93Ranks 775 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 ports0%
From the EU47%
Into the EU49%
At berth in the EU3%

0% of this ship's CO₂ falls under the EU ETS (0 t).

Fuel burned laden

359 t

47% of all fuel; 53% in ballast or unladen

CO₂ at berth

79 t

3.3% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+37 t

+1.5% 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

SEAWAYS GRACE
Chemical tanker median

70.080.090.0100.0110.0120.0

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

Average speed, kn

SEAWAYS GRACE
Chemical tanker median

6.08.010.012.014.0

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

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

SEAWAYS GRACE
Chemical tanker median

5.010.015.020.0

’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	−2%	−2%	−79%	+74%	Same speed, fuel per mile flat.
2023→2024	+0.4 kn	−0%	+2%	+827%	+41%	0.4 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	+1.1 kn	−25%	−17%	−71%	−42%	1.1 kn faster, fuel per mile down 25%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.2 kn	+9%	−3%	+18%	+9%	1.2 kn slower, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.4 kn	+21%	+18%	−41%	+20%	0.4 kn slower, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+5.2 kn	−20%	+38%	+381%	−24%	5.2 kn faster, fuel per mile down 20%; better than speed alone explains (hull, engine or trade).
2018→2019	−5.0 kn	+28%	−25%	−86%	+25%	5.0 kn slower, fuel per mile up 28%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. 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
2025part-year	Heroic Hera Inc.	763	2,406	8,718	720	12.1	87.6	15.8	47%
2025	HEROIC HERA LTD	763	2,406	8,718	720	12.1	87.6	15.8	47%
2024	Heroic Hera Inc.	3,655	11,502	41,059	3,376	12.2	89.0	9.07	76%
2023	not published	396	1,248	4,431	374	11.8	89.3	6.43	100%
2022	not published	1,805	5,716	15,079	1,415	10.7	120	11.1	86%
2021	not published	1,403	4,441	12,739	1,068	11.9	110	10.2	94%
2020	not published	1,962	6,225	21,626	1,758	12.3	90.7	8.52	89%
2019	not published	511	1,615	4,498	632	7.1	114	11.2	69%
2018	not published	2,762	8,645	31,041	2,568	12.1	89.0	8.96	60%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025part-year	Heroic Hera Inc.	–	–	–	–	ABS	B+C
2025	HEROIC HERA LTD	15.8	15.0	+5%	775 of 1,460	ABS	B+C
2024	Heroic Hera Inc.	9.07	16.7	−46%	177 of 1,274	ABS	B+C
2023	not published	6.43	16.2	−60%	14 of 1,314	ABS	B+C
2022	not published	11.1	16.1	−31%	314 of 1,409	ABS	B+C
2021	not published	10.2	16.7	−39%	193 of 1,343	ABS	B+C
2020	not published	8.52	16.2	−47%	87 of 1,312	ABS	B+C
2019	not published	11.2	17.3	−35%	263 of 1,321	ABS	B+C
2018	not published	8.96	17.1	−48%	101 of 1,294	ABS	B+C

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.