Navalyze · Bulk carrier · Ship

YAMAN

IMO: 9504944
Type: Bulk carrier
Average cargo carried: 10,310 t
Flag (estimated): Sierra Leone
Port of registry: Freetown
Technical efficiency: EEXI 6.38 g CO₂/t·nm
Former names: MBEYA

ISM company (DoC holder) in 2025: Marine Repair & Supply Pte Ltd

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 9,277 t of cargo on average.

Fuel kg/nm

55.1

Bulk carrier median 91.4 kg/nm (−40%)

CO₂ per transport work (cargo)

19.1

g CO₂/t·nm · Bulk carrier median 8.57 (+122%)

Average speed

9.6 kn

Bulk carrier median 11.5 kn (−17%)

Fuel per day at sea

12.7 t/day

Fuel consumed

528 t

CO₂ emitted

1,694 t

Distance sailed

9,586 nm

CO₂ ÷ CO₂ per mile

Time at sea

995 h

41 days, 11% of the year

Within the bulk carrier fleet, 2025

Set against all 3,611 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 49.7 kg/nm · median 82.6 (−40%)

61.0Ranks 87 of 3,611, lowest first114

Average speedThis ship 7.4 kn · median 10.7 (−31%)

8.8Faster than 4% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 15.5 g CO₂/t·nm · median 7.90 (+96%)

4.80Ranks 3,225 of 3,611, lowest first15.9

Middle 80% of shipsMiddle 50%Bulk carrier medianThis ship

Where the emissions happen, 2021

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 ports12%
From the EU47%
Into the EU35%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

111 t

6.6% 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 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

YAMAN
Bulk carrier median

40.060.080.0100.0

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

Average speed, kn

YAMAN
Bulk carrier median

6.08.010.012.0

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

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

YAMAN
Bulk carrier median

5.010.015.020.0

’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	−1.4 kn	−3%	−18%	−16%	+5%	1.4 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.4 kn	−2%	−7%	+13%	+2%	0.4 kn slower, fuel per mile down 2%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.4 kn	+1%	−3%	+182%	+38%	0.4 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.0 kn	−5%	−6%	+0%	−45%	Same speed, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.3 kn	−15%	−12%	−30%	+46%	Same speed, fuel per mile down 15%; better than speed alone explains (hull, engine or trade).
2019→2020	–	–	–	–	–
2018→2019	–	–	–	–	–

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	Marine Repair & Supply Pte Ltd	1,268	4,067	25,515	3,436	7.4	49.7	15.5	–
2025	TQ Ship Management Denizcilik Ltd. Sti.	1,268	4,067	25,515	3,436	7.4	49.7	15.5	–
2024	Marine Repair & Supply Pte Ltd	1,574	5,045	30,542	3,489	8.8	51.5	14.7	–
2023	not published	1,429	4,582	27,130	2,958	9.2	52.7	14.4	–
2022	not published	502	1,610	9,621	1,001	9.6	52.2	10.4	–
2021	not published	528	1,694	9,586	995	9.6	55.1	19.1	–
2020	not published	892	2,860	13,729	1,479	9.3	65.0	13.1	–
2019	not published	0	0	–	0	–	–	–	–
2018	not published	0	0	–	0	–	–	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025part-year	Marine Repair & Supply Pte Ltd	–	–	–	–	China Classification Society	A
2025	TQ Ship Management Denizcilik Ltd. Sti.	15.5	7.90	+96%	3,225 of 3,611	Verifavia	B
2024	Marine Repair & Supply Pte Ltd	14.7	8.09	+81%	2,724 of 3,089	China Classification Society	A
2023	not published	14.4	8.27	+74%	3,044 of 3,548	China Classification Society	A
2022	not published	10.4	8.71	+20%	2,611 of 3,968	China Classification Society	A
2021	not published	19.1	8.57	+122%	3,275 of 3,466	China Classification Society	A
2020	not published	13.1	8.24	+59%	2,703 of 3,150	China Classification Society	A
2019	not published	–	–	–	–	China Classification Society	A
2018	not published	–	–	–	–	China Classification Society	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.