Navalyze · Other · Ship

ZHI YUAN KOU

IMO: 9639452
Type: Other ship types
Average cargo carried: 3,446 t
Flag (estimated): China
Port of registry: Yang Pu

ISM company (DoC holder) in 2025: COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD. · part of COSCO Shipping

Report year

2019 at a glance

From the 2019 THETIS-MRV report. Carries about 1,491 t of cargo on average.

Fuel kg/nm

140

Other median 88.8 kg/nm (+58%)

CO₂ per transport work (cargo)

293

g CO₂/t·nm · Other median 90.1 (+225%)

Average speed

10.0 kn

Other median 10.1 kn (−1%)

Fuel per day at sea

33.6 t/day

Fuel consumed

7,709 t

CO₂ emitted

24,040 t

Distance sailed

55,026 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,502 h

229 days, 63% 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 167 kg/nm · median 87.2 (+92%)

47.6Ranks 144 of 159, lowest first161

Average speedThis ship 9.6 kn · median 10.4 (−8%)

5.8Faster than 33% of other ships13.4

CO₂ per transport work (cargo)This ship 152 g CO₂/t·nm · median 86.7 (+75%)

30.8Ranks 104 of 159, lowest first600

Middle 80% of shipsMiddle 50%Other medianThis ship

Where the emissions happen, 2019

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 EU63%
Into the EU36%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

137 t

0.6% 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 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

ZHI YUAN KOU
Other median

50.075.0100.0125.0150.0175.0

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

Average speed, kn

ZHI YUAN KOU
Other median

9.09.510.010.511.011.5

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

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

ZHI YUAN KOU
Other median

0.0100200300

’182018’192019’202020’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.0 kn	+7%	+6%	+145%	+172%	Same speed, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	–	–	–	–	–
2022→2023	–	–	–	–	–
2021→2022	–	–	–	–	–
2020→2021	–	–	–	–	–
2019→2020	−0.9 kn	−6%	−14%	−36%	−47%	0.9 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.1 kn	+15%	+16%	+348%	+76%	Same speed, fuel per mile up 15%; 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	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	3,872	12,120	23,155	2,424	9.6	167	152	–
2024	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	1,480	4,610	9,449	986	9.6	157	55.8	–
2023	not published	0	0	–	0	–	–	–	–
2022	not published	0	0	–	0	–	–	–	–
2021	not published	0	0	–	0	–	–	–	–
2020	not published	4,662	14,561	35,311	3,882	9.1	132	157	–
2019	not published	7,709	24,040	55,026	5,502	10.0	140	293	–
2018	not published	1,494	4,654	12,274	1,235	9.9	122	167	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Other median	vs Other	Rank	Verifier	Methods
2025	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	152	86.7	+75%	104 of 159	China Classification Society	A
2024	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	55.8	51.6	+8%	98 of 189	China Classification Society	A
2023	not published	–	–	–	–	China Classification Society	A
2022	not published	–	–	–	–	China Classification Society	A
2021	not published	–	–	–	–	China Classification Society	A
2020	not published	157	121	+30%	48 of 81	China Classification Society	A
2019	not published	293	90.1	+225%	79 of 96	China Classification Society	A
2018	not published	167	72.9	+129%	54 of 87	China Classification Society	A

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.