Navalyze · Bulk carrier · Ship

KYVELI GS

IMO: 9881146
Type: Bulk carrier
Average cargo carried: 30,617 t
Technical efficiency: EEDI 4.71 g CO₂/t·nm
Former names: ARIES SAKURA

ISM company (DoC holder) in 2025: GS MARITIME CO LTD

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 30,617 t of cargo on average.

Fuel kg/nm

61.3

Bulk carrier median 82.6 kg/nm (−26%)

CO₂ per transport work (cargo)

6.27

g CO₂/t·nm · Bulk carrier median 7.89 (−21%)

Average speed

10.5 kn

Bulk carrier median 10.7 kn (−2%)

Fuel per day at sea

15.4 t/day

Fuel consumed

815 t

CO₂ emitted

2,554 t

2,594 t CO₂eq incl. CH₄ and N₂O

Distance sailed

13,302 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,271 h

53 days, 15% of the year

Within the bulk carrier fleet, 2025

Set against all 3,610 bulk carrier 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 61.3 kg/nm · median 82.6 (−26%)

61.0Ranks 368 of 3,610, lowest first114.1

Average speedThis ship 10.5 kn · median 10.7 (−2%)

8.8Faster than 42% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 6.27 g CO₂/t·nm · median 7.89 (−21%)

4.80Ranks 1,007 of 3,610, lowest first15.93

Middle 80% of shipsMiddle 50%Bulk carrier 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 ports7%
From the EU12%
Into the EU76%
At berth in the EU5%

56% of this ship's CO₂ falls under the EU ETS (1,429 t).

Fuel burned laden

–

Not reported

CO₂ at berth

131 t

5.1% 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

+40 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 Bulk carrier median is the middle ship of all bulk carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

KYVELI GS
Bulk carrier median

50.060.070.080.090.0100.0

’212021’222022’232023’242024’252025

Average speed, kn

KYVELI GS
Bulk carrier median

6.08.010.012.0

’212021’222022’232023’242024’252025

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

KYVELI GS
Bulk carrier median

6.07.08.09.010.0

’212021’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.2 kn	+6%	+8%	+33%	–	Same speed, fuel per mile up 6%; in line with the speed change.
2023→2024	−1.2 kn	−1%	−12%	+49%	–	1.2 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.7 kn	−11%	−5%	+40%	−28%	0.7 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2021→2022	+3.6 kn	−8%	+38%	+17%	−13%	3.6 kn faster, fuel per mile down 8%; 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	GS MARITIME CO LTD	815	2,554	13,302	1,271	10.5	61.3	6.27	–
2024	KOBE SHIPMANAGEMENT COMPANY LTD.	577	1,822	10,002	972	10.3	57.6	–	–
2023	not published	391	1,239	6,699	581	11.5	58.3	6.24	–
2022	not published	314	997	4,786	443	10.8	65.7	8.69	–
2021	not published	292	927	4,104	569	7.2	71.2	9.99	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	GS MARITIME CO LTD	6.27	7.89	−21%	1,007 of 3,610	Lloyd's Register	A
2024	KOBE SHIPMANAGEMENT COMPANY LTD.	–	–	–	–	ClassNK	A
2023	not published	6.24	8.27	−25%	855 of 3,548	ClassNK	A
2022	not published	8.69	8.71	−0%	1,976 of 3,968	ClassNK	A
2021	not published	9.99	8.57	+17%	2,256 of 3,466	ClassNK	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Bulk carrier 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 bulk carrier 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.