Navalyze · General cargo · Ship

ZHONG YUAN HAI YUN KAI TUO

IMO: 9837640
Type: General cargo ship
Flag (estimated): China
Port of registry: Guangzhou
Technical efficiency: EEDI 3.81 g CO₂/t·nm

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

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 29,558 t of cargo on average.

Fuel kg/nm

82.4

General cargo median 55.9 kg/nm (+47%)

CO₂ per transport work (dwt)

4.14

g CO₂/dwt·nm · General cargo median 22.7 (−82%)

Average speed

13.4 kn

General cargo median 10.9 kn (+23%)

Fuel per day at sea

26.5 t/day

Fuel consumed

1,713 t

CO₂ emitted

5,340 t

Distance sailed

20,789 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,549 h

65 days, 18% of the year

Within the general cargo fleet, 2025

Set against all 2,723 general cargo 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 86.0 kg/nm · median 35.2 (+144%)

17.4Ranks 2,568 of 2,723, lowest first78.8

Average speedThis ship 13.3 kn · median 9.3 (+43%)

6.9Faster than 97% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 281 g CO₂/dwt·nm · median 25.5 (+1,003%)

10.2Ranks 2,693 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo 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 ports11%
From the EU38%
Into the EU48%
At berth in the EU3%

Fuel burned laden

–

Not reported

CO₂ at berth

134 t

2.5% 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 General cargo median is the middle ship of all general cargo ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

ZHONG YUAN HAI YUN KAI TUO
General cargo median

20.040.060.080.0100.0120.0

’202020’212021’222022’232023’242024’252025

Average speed, kn

ZHONG YUAN HAI YUN KAI TUO
General cargo median

8.010.012.014.0

’202020’212021’222022’232023’242024’252025

CO₂ per transport work (dwt), g CO₂/dwt·nm

ZHONG YUAN HAI YUN KAI TUO
General cargo median

0.0100200300

’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	+0.0 kn	+20%	+20%	−50%	+7,732%	Same speed, fuel per mile up 20%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.1 kn	−12%	−12%	−3%	−13%	Same speed, fuel per mile down 12%; better than speed alone explains (hull, engine or trade).
2022→2023	+1.2 kn	−19%	−10%	+141%	−19%	1.2 kn faster, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.4 kn	+22%	+9%	−72%	+23%	1.4 kn slower, fuel per mile up 22%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.9 kn	+15%	+24%	+144%	+15%	0.9 kn faster, fuel per mile up 15%; in line with the speed change.

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.	586	1,843	6,815	513	13.3	86.0	–	–
2024	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	972	3,029	13,585	1,023	13.3	71.6	–	–
2023	not published	1,149	3,580	14,034	1,061	13.2	81.8	60.4	–
2022	not published	585	1,831	5,814	486	12.0	101	5.51	–
2021	not published	1,713	5,340	20,789	1,549	13.4	82.4	8.69	–
2020	not published	612	1,908	8,533	685	12.5	71.7	25.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	281	25.5	+1,003%	2,693 of 2,723	China Classification Society	A
2024	COSCO SHIPPING SPECIALIZED CARRIERS CO.,LTD.	3.59	19.3	−81%	6 of 1,111	China Classification Society	A
2023	not published	4.11	20.7	−80%	7 of 1,045	China Classification Society	A
2022	not published	5.08	21.6	−76%	17 of 1,034	China Classification Society	A
2021	not published	4.14	22.7	−82%	6 of 1,142	China Classification Society	A
2020	not published	3.60	24.5	−85%	2 of 1,167	China Classification Society	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. General cargo ships are benchmarked on CO₂ per transport work (dwt) (TW), in g CO₂/dwt·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 general cargo 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.