Navalyze · Other · Ship

CS BEST

IMO: 9350989
Type: Other ship types
Average cargo carried: 3,754 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EIV 24.35 g CO₂/t·nm
Former names: STAR BEST

ISM company (DoC holder) in 2025: BRIGHT STAR SHIP MANAGEMENT INC.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 3,754 t of cargo on average.

Fuel kg/nm

104

Other median 87.2 kg/nm (+19%)

CO₂ per transport work (cargo)

86.4

g CO₂/t·nm · Other median 86.7 (−0%)

Average speed

17.4 kn

Other median 10.4 kn (+67%)

Fuel per day at sea

43.2 t/day

Fuel consumed

1,256 t

CO₂ emitted

3,924 t

3,985 t CO₂eq incl. CH₄ and N₂O

Distance sailed

12,097 nm

CO₂ ÷ CO₂ per mile

Time at sea

697 h

29 days, 8% of the year

Within the other fleet, 2025

Set against all 159 other 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 104 kg/nm · median 87.2 (+19%)

47.6Ranks 97 of 159, lowest first161

Average speedThis ship 17.4 kn · median 10.4 (+67%)

5.8Faster than 97% of other ships13.4

CO₂ per transport work (cargo)This ship 86.4 g CO₂/t·nm · median 86.7 (−0%)

30.8Ranks 79 of 159, lowest first600

Middle 80% of shipsMiddle 50%Other 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 ports3%
From the EU41%
Into the EU54%
At berth in the EU3%

53% of this ship's CO₂ falls under the EU ETS (2,069 t).

Fuel burned laden

–

Not reported

CO₂ at berth

100 t

2.5% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+61 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 Other median is the middle ship of all other ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

CS BEST
Other median

80.0100.0120.0140.0

’192019’202020’212021’232023’242024’252025

Average speed, kn

CS BEST
Other median

10.012.014.016.018.0

’192019’202020’212021’232023’242024’252025

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

CS BEST
Other median

40.060.080.0100

’192019’202020’212021’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+2.5 kn	−26%	−14%	−22%	–	2.5 kn faster, fuel per mile down 26%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.5 kn	+31%	+19%	−73%	–	1.5 kn slower, fuel per mile up 31%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2023	+1.4 kn	−17%	−9%	+153%	+64%	1.4 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.0 kn	+4%	−9%	−25%	+15%	2.0 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.6 kn	+11%	+7%	−53%	−55%	0.6 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading 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	BRIGHT STAR SHIP MANAGEMENT INC.	1,256	3,924	12,097	697	17.4	104	86.4	–
2024	BRIGHT STAR SHIP MANAGEMENT INC.	2,169	6,814	15,522	1,041	14.9	140	–	–
2023	not published	6,097	19,018	56,972	3,482	16.4	107	77.2	–
2021	not published	2,891	9,021	22,558	1,507	15.0	128	47.1	–
2020	not published	3,702	11,552	29,962	1,758	17.0	124	40.9	–
2019	not published	7,147	22,316	64,153	3,644	17.6	111	91.3	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Other median	vs Other	Rank	Verifier	Methods
2025	BRIGHT STAR SHIP MANAGEMENT INC.	86.4	86.7	−0%	79 of 159	ClassNK	B+C
2024	BRIGHT STAR SHIP MANAGEMENT INC.	–	–	–	–	ClassNK	B+C
2023	not published	77.2	93.5	−17%	52 of 116	ClassNK	B+C
2021	not published	47.1	55.0	−14%	49 of 158	ClassNK	B+C
2020	not published	40.9	59.1	−31%	21 of 149	ClassNK	B+C
2019	not published	91.3	62.6	+46%	115 of 147	ClassNK	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Other 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 other 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.