Navalyze · Bulk carrier · Ship

HIROKI

IMO: 9181120
Type: Bulk carrier
Flag (estimated): Belize
Port of registry: Belize City
Technical efficiency: EEXI 4.55 g CO₂/t·nm
Former names: CHALLENGER KASSER

ISM company (DoC holder) in 2025: Hiroki Ship Management LTD

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 34,730 t of cargo on average.

Fuel kg/nm

83.6

Bulk carrier median 91.4 kg/nm (−9%)

CO₂ per transport work (cargo)

7.62

g CO₂/t·nm · Bulk carrier median 8.57 (−11%)

Average speed

9.5 kn

Bulk carrier median 11.5 kn (−17%)

Fuel per day at sea

19.1 t/day

Fuel consumed

3,758 t

CO₂ emitted

11,890 t

Distance sailed

44,928 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,733 h

197 days, 54% of the year

Within the bulk carrier fleet, 2024

Set against all 3,089 bulk carrier ships with a full-year 2024 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 87.7 kg/nm · median 84.6 (+4%)

61.8Ranks 1,742 of 3,089, lowest first119

Average speedThis ship 12.3 kn · median 10.6 (+16%)

8.8Faster than 96% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 10.3 g CO₂/t·nm · median 8.09 (+28%)

4.85Ranks 2,215 of 3,089, lowest first15.8

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 ports18%
From the EU49%
Into the EU29%
At berth in the EU4%

Fuel burned laden

–

Not reported

CO₂ at berth

459 t

3.9% 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

HIROKI
Bulk carrier median

60.070.080.090.0100.0

’182018’192019’202020’212021’242024’252025

Average speed, kn

HIROKI
Bulk carrier median

6.08.010.012.014.0

’182018’192019’202020’212021’242024’252025

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

HIROKI
Bulk carrier median

7.08.09.010.011.0

’182018’192019’202020’212021’242024

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	–	–	–	–	–
2021→2024	+2.8 kn	+5%	+36%	−75%	+36%	2.8 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.1 kn	−2%	−1%	+253%	−26%	Same speed, fuel per mile flat.
2019→2020	+2.6 kn	+12%	+55%	−10%	+28%	2.6 kn faster, fuel per mile up 12%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.9 kn	+10%	−14%	+131%	+13%	1.9 kn slower, fuel per mile up 10%; 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	Hiroki Ship Management LTD	0	0	–	0	–	–	–	–
2024	Hiroki Ship Management LTD	984	3,105	11,217	909	12.3	87.7	10.3	–
2021	not published	3,758	11,890	44,928	4,733	9.5	83.6	7.62	–
2020	not published	1,081	3,419	12,720	1,351	9.4	85.0	10.3	–
2019	not published	1,069	3,339	14,152	2,076	6.8	75.6	8.02	–
2018	not published	423	1,322	6,138	706	8.7	68.9	7.08	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	Hiroki Ship Management LTD	–	–	–	–	Dromon Bureau of Shipping	A
2024	Hiroki Ship Management LTD	10.3	8.09	+28%	2,215 of 3,089	Dromon Bureau of Shipping	A
2021	not published	7.62	8.57	−11%	1,272 of 3,466	Dromon Bureau of Shipping	A
2020	not published	10.3	8.24	+25%	2,221 of 3,150	Dromon Bureau of Shipping	A
2019	not published	8.02	8.38	−4%	1,539 of 3,360	Dromon Bureau of Shipping	A
2018	not published	7.08	8.50	−17%	1,069 of 3,384	Dromon Bureau of Shipping	–

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.