Navalyze · General cargo · Ship

ASG PORTOFINO

IMO: 9229087
Type: General cargo ship
Average cargo carried: 21 t
Flag (estimated): Palau
Port of registry: Malakal Harbor
Technical efficiency: EEXI 10.89 g CO₂/t·nm
Ice class: IA
Former names: BOTHNIA

ISM company (DoC holder) in 2025: ARGO SHIPPING CO LTD-BUL

Report year

2023 at a glance

From the 2023 THETIS-MRV report.

Fuel kg/nm

45.5

General cargo median 59.9 kg/nm (−24%)

CO₂ per transport work (dwt)

62.0

g CO₂/dwt·nm · General cargo median 20.7 (+200%)

Average speed

12.0 kn

General cargo median 10.5 kn (+14%)

Fuel per day at sea

13.1 t/day

Fuel consumed

1,387 t

CO₂ emitted

4,346 t

Distance sailed

30,451 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,540 h

106 days, 29% 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 48.5 kg/nm · median 35.2 (+38%)

17.4Ranks 1,854 of 2,723, lowest first78.8

Average speedThis ship 5.5 kn · median 9.3 (−41%)

6.9Faster than 4% of general cargo ships12.0

CO₂ per transport work (dwt)This ship 44.7 g CO₂/dwt·nm · median 25.5 (+75%)

10.2Ranks 2,350 of 2,723, lowest first52.7

Middle 80% of shipsMiddle 50%General cargo medianThis ship

Where the emissions happen, 2023

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 ports5%
From the EU42%
Into the EU51%
At berth in the EU1%

Fuel burned laden

–

Not reported

CO₂ at berth

57 t

1.3% 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

ASG PORTOFINO
General cargo median

30.040.050.060.0

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

Average speed, kn

ASG PORTOFINO
General cargo median

4.06.08.010.012.0

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

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

ASG PORTOFINO
General cargo median

0.020.040.060.080.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−4.5 kn	+5%	−42%	−10%	+59%	4.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−2.0 kn	+2%	−15%	−25%	−55%	2.0 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.5 kn	+9%	+14%	−25%	+34%	0.5 kn faster, fuel per mile up 9%; in line with the speed change.
2021→2022	+3.1 kn	−9%	+25%	+5%	+81%	3.1 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2020→2021	−3.0 kn	−6%	−31%	+5%	−3%	3.0 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.9 kn	+7%	+43%	−9%	−7%	2.9 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).
2018→2019	+2.3 kn	−4%	+31%	+2%	−46%	2.3 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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
2025part-year	ARGO SHIPPING CO LTD-BUL	665	2,097	14,671	1,622	9.0	45.3	–	–
2025	Vulcania Shipmanagement Srl	1,006	3,177	20,711	3,761	5.5	48.5	7,479	–
2024	ARGO SHIPPING CO LTD-BUL	1,064	3,337	22,935	2,292	10.0	46.4	–	–
2023	not published	1,387	4,346	30,451	2,540	12.0	45.5	–	–
2022	not published	1,711	5,380	40,808	3,556	11.5	41.9	–	–
2021	not published	1,771	5,572	38,699	4,631	8.4	45.8	–	–
2020	not published	1,790	5,645	36,742	3,227	11.4	48.7	–	–
2019	not published	1,826	5,710	40,205	4,717	8.5	45.4	–	–
2018	not published	1,865	5,861	39,317	6,336	6.2	47.4	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/dwt·nm	General cargo median	vs General cargo	Rank	Verifier	Methods
2025part-year	ARGO SHIPPING CO LTD-BUL	–	–	–	–	DNV	A
2025	Vulcania Shipmanagement Srl	44.7	25.5	+75%	2,350 of 2,723	RINA	A
2024	ARGO SHIPPING CO LTD-BUL	28.1	19.3	+46%	859 of 1,111	DNV	A
2023	not published	62.0	20.7	+200%	1,007 of 1,045	DNV	A
2022	not published	46.3	21.6	+114%	943 of 1,034	DNV	B
2021	not published	25.5	22.7	+12%	703 of 1,142	DNV	B
2020	not published	26.2	24.5	+7%	656 of 1,167	DNV	B
2019	not published	28.3	25.0	+13%	696 of 1,154	DNV	A
2018	not published	51.9	24.9	+109%	922 of 1,044	DNV	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.