Navalyze · Oil tanker · Ship

JIN ZHOU WAN

IMO: 9802580
Type: Oil tanker
Flag (estimated): China
Port of registry: Hai Kou
Technical efficiency: EEDI 10.35 g CO₂/t·nm

ISM company (DoC holder) in 2025: COSCO Shipping Asphalt (Hainan) Co., Ltd · part of COSCO Shipping

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 5,326 t of cargo on average.

Fuel kg/nm

56.5

Oil tanker median 129 kg/nm (−56%)

CO₂ per transport work (cargo)

33.1

g CO₂/t·nm · Oil tanker median 8.86 (+273%)

Average speed

12.4 kn

Oil tanker median 10.7 kn (+16%)

Fuel per day at sea

16.8 t/day

Fuel consumed

2,179 t

CO₂ emitted

6,799 t

Distance sailed

38,579 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,114 h

130 days, 36% of the year

Within the oil tanker fleet, 2024

Set against all 1,787 oil tanker 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 57.6 kg/nm · median 129 (−55%)

79.5Ranks 61 of 1,787, lowest first194

Average speedThis ship 11.6 kn · median 10.9 (+6%)

8.1Faster than 72% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 15.2 g CO₂/t·nm · median 8.06 (+88%)

4.44Ranks 1,428 of 1,787, lowest first25.7

Middle 80% of shipsMiddle 50%Oil tanker 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 ports0%
From the EU47%
Into the EU51%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

128 t

1.9% 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 Oil tanker median is the middle ship of all oil tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

JIN ZHOU WAN
Oil tanker median

50.075.0100.0125.0150.0

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

Average speed, kn

JIN ZHOU WAN
Oil tanker median

9.010.011.012.013.014.0

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

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

JIN ZHOU WAN
Oil tanker median

0.020.040.060.080.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	–	–	–	–	–
2023→2024	−0.7 kn	+11%	+6%	−83%	−34%	0.7 kn slower, fuel per mile up 11%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.2 kn	−11%	−12%	+100%	−6%	Same speed, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.1 kn	+2%	+3%	−59%	−25%	Same speed, fuel per mile up 2%; in line with the speed change.
2020→2021	+0.4 kn	−9%	−6%	+27%	+7%	0.4 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2019→2020	−1.0 kn	+1%	−6%	−26%	−3%	1.0 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.1 kn	−17%	−18%	+37%	−53%	Same speed, fuel per mile down 17%; better than speed alone explains (hull, engine 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 Asphalt (Hainan) Co., Ltd	0	0	–	0	–	–	–	–
2024	COSCO Shipping Asphalt (Hainan) Co., Ltd	314	979	5,441	469	11.6	57.6	15.2	–
2023	not published	1,621	5,081	31,373	2,555	12.3	51.7	23.1	–
2022	not published	905	2,834	15,659	1,257	12.5	57.8	24.7	–
2021	not published	2,179	6,799	38,579	3,114	12.4	56.5	33.1	–
2020	not published	1,890	5,905	30,387	2,529	12.0	62.2	30.9	–
2019	not published	2,520	7,884	41,088	3,166	13.0	61.3	31.8	–
2018	not published	2,225	6,938	30,007	2,298	13.1	74.1	67.4	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	COSCO Shipping Asphalt (Hainan) Co., Ltd	–	–	–	–	China Classification Society	A
2024	COSCO Shipping Asphalt (Hainan) Co., Ltd	15.2	8.06	+88%	1,428 of 1,787	China Classification Society	A
2023	not published	23.1	8.44	+174%	1,592 of 1,797	China Classification Society	A
2022	not published	24.7	8.51	+190%	1,761 of 1,961	China Classification Society	A
2021	not published	33.1	8.86	+273%	1,673 of 1,789	China Classification Society	A
2020	not published	30.9	9.03	+242%	1,735 of 1,870	China Classification Society	A
2019	not published	31.8	8.83	+260%	1,804 of 1,919	China Classification Society	A
2018	not published	67.4	8.86	+661%	1,759 of 1,779	China Classification Society	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Oil tanker 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 oil tanker 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.