Navalyze · Other · Ship

CS QUALITY

IMO: 9438494
Type: Other ship types
Average cargo carried: 8,216 t
Flag (estimated): Singapore
Port of registry: Singapore
Technical efficiency: EIV 27.18 g CO₂/t·nm
Former names: STAR QUALITY

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

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 7,303 t of cargo on average.

Fuel kg/nm

130

Other median 97.2 kg/nm (+34%)

CO₂ per transport work (cargo)

55.4

g CO₂/t·nm · Other median 74.1 (−25%)

Average speed

17.6 kn

Other median 11.3 kn (+56%)

Fuel per day at sea

54.8 t/day

Fuel consumed

6,861 t

CO₂ emitted

21,377 t

Distance sailed

52,867 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,005 h

125 days, 34% 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 141 kg/nm · median 87.2 (+61%)

47.6Ranks 130 of 159, lowest first161

Average speedThis ship 17.8 kn · median 10.4 (+71%)

5.8Faster than 98% of other ships13.4

CO₂ per transport work (cargo)This ship 53.3 g CO₂/t·nm · median 86.7 (−39%)

30.8Ranks 46 of 159, lowest first600

Middle 80% of shipsMiddle 50%Other medianThis ship

Where the emissions happen, 2022

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 ports0%
From the EU16%
Into the EU81%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

601 t

2.8% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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 QUALITY
Other median

80.0100.0120.0140.0160.0

’182018’192019’222022’232023’242024’252025

Average speed, kn

CS QUALITY
Other median

10.012.515.017.520.0

’182018’192019’222022’232023’242024’252025

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

CS QUALITY
Other median

40.060.080.0100

’182018’192019’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.0 kn	+24%	+31%	−13%	–	1.0 kn faster, fuel per mile up 24%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.9 kn	+1%	+7%	−7%	–	0.9 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−1.7 kn	−14%	−22%	+2%	+27%	1.7 kn slower, fuel per mile down 14%; in line with the speed change.
2019→2022	+1.5 kn	+8%	+18%	+198%	−12%	1.5 kn faster, fuel per mile up 8%; better than speed alone explains (hull, engine or trade).
2018→2019	−2.4 kn	−4%	−17%	−80%	−13%	2.4 kn slower, fuel per mile down 4%; 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.	6,102	19,017	43,426	2,443	17.8	141	53.3	–
2024	BRIGHT STAR SHIP MANAGEMENT INC.	5,675	17,710	50,046	2,980	16.8	113	–	–
2023	not published	6,051	18,883	54,062	3,401	15.9	112	70.2	–
2022	not published	6,861	21,377	52,867	3,005	17.6	130	55.4	–
2019	not published	2,137	6,687	17,735	1,100	16.1	121	63.2	–
2018	not published	11,373	35,521	90,466	4,883	18.5	126	72.9	–

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.	53.3	86.7	−39%	46 of 159	ClassNK	B+C
2024	BRIGHT STAR SHIP MANAGEMENT INC.	–	–	–	–	ClassNK	B+C
2023	not published	70.2	93.5	−25%	48 of 116	ClassNK	B+C
2022	not published	55.4	74.1	−25%	28 of 78	ClassNK	B+C
2019	not published	63.2	62.6	+1%	77 of 147	ClassNK	B+C
2018	not published	72.9	72.8	+0%	69 of 136	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.