Navalyze · Bulk carrier · Ship

WOOYANG HERMES

IMO: 9421257
Type: Bulk carrier
Average cargo carried: 33,014 t
Port of registry: Majuro
Technical efficiency: EEXI 4.24 g CO₂/t·nm

ISM company (DoC holder) in 2025: Korea Shipmanagers Co Ltd

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 33,014 t of cargo on average.

Fuel per mile

79.9 kg/nm

Bulk carrier median 82.6 kg/nm (−3%)

CO₂ per transport work (cargo)

7.60

g CO₂/t·nm · Bulk carrier median 7.89 (−4%)

Average speed

10.0 kn

Bulk carrier median 10.7 kn (−7%)

Fuel per day at sea

19.1 t/day

Fuel consumed

825 t

CO₂ emitted

2,591 t

2,631 t CO₂eq incl. CH₄ and N₂O

Distance sailed

10,325 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,036 h

43 days, 12% 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 per mileThis ship 79.9 kg/nm · median 82.6 (−3%)

61.0Ranks 1,606 of 3,610, lowest first114.1

Average speedThis ship 10.0 kn · median 10.7 (−7%)

8.8Faster than 27% of bulk carrier ships11.8

CO₂ per transport work (cargo)This ship 7.60 g CO₂/t·nm · median 7.89 (−4%)

4.80Ranks 1,664 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 ports10%
From the EU4%
Into the EU83%
At berth in the EU3%

57% of this ship's CO₂ falls under the EU ETS (1,468 t).

Fuel burned laden

–

Not reported

CO₂ at berth

3.2%

Alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.015

Uplift 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 per mile, kg/nm

WOOYANG HERMES
Bulk carrier median

60.080.0100.0120.0

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

Average speed, kn

WOOYANG HERMES
Bulk carrier median

10.011.012.013.0

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

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

WOOYANG HERMES
Bulk carrier median

0.010.020.030.040.0

’192019’202020’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−3.0 kn	−4%	−27%	+0%	+1%	3.0 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+2.0 kn	+7%	+28%	−6%	+11%	2.0 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).
2021→2023	+0.3 kn	−35%	−33%	+657%	–	0.3 kn faster, fuel per mile down 35%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.1 kn	+28%	+28%	−90%	–	Same speed, fuel per mile up 28%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−1.7 kn	−17%	−28%	+344%	−67%	1.7 kn slower, fuel per mile down 17%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Korea Shipmanagers Co Ltd	825	2,591	10,325	1,036	10.0	79.9	7.60	–
2024	Wooyang Shipping Co., Ltd	860	2,711	10,278	788	13.0	83.6	7.53	–
2023	not published	852	2,657	10,932	996	11.0	77.9	6.77	–
2021	not published	173	546	1,444	134	10.7	119.6	–	–
2020	not published	1,308	4,125	14,000	1,302	10.8	93.4	10.78	–
2019	not published	353	1,105	3,154	253	12.5	112.1	32.32	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Bulk carrier median	vs Bulk carrier	Rank	Verifier	Methods
2025	Korea Shipmanagers Co Ltd	7.60	7.89	−4%	1,664 of 3,610	Korean Register	C
2024	Wooyang Shipping Co., Ltd	7.53	8.09	−7%	1,310 of 3,089	Korean Register	A
2023	not published	6.77	8.27	−18%	1,089 of 3,548	Korean Register	A
2021	not published	–	–	–	–	Korean Register	A
2020	not published	10.78	8.24	+31%	2,331 of 3,150	Korean Register	A
2019	not published	32.32	8.38	+286%	3,310 of 3,360	Korean Register	C

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.