Most Emission-Efficient Bulk Carriers

Ships ranked by AER (Annual Efficiency Ratio) — grams of CO₂ emitted per tonne of deadweight carried one nautical mile (g CO₂/dwt·nm), the IMO carbon-intensity metric behind the CII rating — from official EU MRV emissions data for reporting year 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2025)

#1,353 of 3,436 bulk carriers

CO₂ intensity

4.0 g CO₂/dwt·nm

vs segment average (4.71)

-14% greener

Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

3,507

vessels ranked

1.74

greenest (g CO₂/t·nm)

4.46

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
1348	LINDEN ARROW IMO 9552953	55,861	2013	190 m	Kawasaki - 5S50MC-C-MK7	4.0	B
1352	SINCERE SMART IMO 9311177	75,884	2007	225 m	Mitsui - 6S60MC	4.0	B
1355	AQUAHOLIC IMO 9363089	83,730	2008	229 m	MAN - 6S60MC-C	4.0	B
1354	XIN HAI TONG 807 IMO 9624122	81,752	2013	229 m	MAN - 5S60MC-C8	4.0	B
1353	G PACIFIC IMO 9494010	58,114	2010	190 m	MAN - 6S50MC-C	4.0	B
1358	INES CORRADO IMO 9602772	81,271	2012	229 m	HHI - 6S60MC-C8	4.0	B
1361	XIN HAI TONG 801 IMO 9591844	81,680	2012	229 m	MAN - 5S60MC-C	4.0	B
1357	DENSA FLAMINGO IMO 9603283	82,670	2010	229 m	STX - 6S60MC-C8	4.0	B
1363	XIN HAI TONG 808 IMO 9669330	76,079	2010	225 m	Hudong Heavy Machinery - HHM-MAN B&W 5S60ME-C8.2	4.0	B
1362	STAR PISCES IMO 9715854	60,916	2015	198 m	Mitsui - 6S50ME-B9.3TII	4.0	B
1356	BERGE CATHERINE IMO 9856309	63,654	2020	200 m	MAN - 6S50ME-C9	4.0	B
1359	ASTRO VEGA IMO 9720299	63,008	2015	200 m	MAN - 5S60ME-C8	4.0	B
1360	GREAT SHANG IMO 9766906	64,942	2016	200 m	Kawasaki - 6G50ME-B9	4.0	B
1364	TIGER HEBEI IMO 9712204	63,483	2015	200 m	5S60ME-C8.2-TII	4.1	B
1365	PERSEAS IMO 9650638	75,033	2013	225 m	Hyundai - 5 S 60 MC-C	4.1	B
1371	ANGELIC PEACE IMO 9250177	75,007	1999	225 m	Hudong Heavy Machinery - 5S60MC-C	4.1	B
1370	ASIAN SUMMIT IMO 9725005	62,466	2017	200 m	Mitsui - 6S50ME-B9	4.1	B
1372	CHRISTINE OLDENDORFF IMO 9537898	93,077	2010	229 m	Hyundai - 6S60MC-C	4.1	B
1369	ABDULLAH IMO 9745598	58,068	2015	190 m	MAN - 6S50ME-B9	4.1	B
1368	PSARROS D IMO 9855642	81,961	2019	229 m	DALIAN MARINE - 6S60ME-C8 (Tier II)	4.1	B
1367	HF ZHOUSHAN IMO 9268992	75,606	2004	225 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 7S50MC-C	4.1	B
1366	STEFANOS T IMO 9583744	80,499	2011	229 m	Hyundai - 7S50MC-C	4.1	B
1376	EPIC SERENITY IMO 9935442	82,310	2022	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	4.1	B
1375	ZHENG RONG IMO 9593828	81,793	2013	229 m	MAN - 5S60ME-C	4.1	B
1377	FEDERAL TOKORO IMO 9725445	55,543	2015	190 m	Mitsui - 6S50MC-C	4.1	B
1374	YASA JUPITER IMO 9848132	61,077	2019	200 m	MAN - 6S50ME-B9	4.1	B
1379	PHILHOKUSAI IMO 9549451	61,197	2022	200 m	MAN - 6S50ME-B9	4.1	B
1378	HALONA IMO 9286920	75,776	2005	225 m	MITSUI ENGINEERING 7S50MC-C	4.1	B
1373	POPI S IMO 9527233	80,337	2012	229 m	MAN - 7S50MC-C	4.1	B
1383	XIN HAI TONG 63 IMO 9592721	57,022	2011	190 m	Kawasaki - 6S50MC-C	4.1	B
1382	SUN VIL II IMO 9643178	56,042	2013	190 m	Mitsui - 6S50MC-C8.2TII	4.1	B
1381	STAR ANGELINA IMO 9310630	82,981	2006	229 m	Mitsui - 7 S 50 MC-C	4.1	B
1380	JAL MURARI IMO 9849564	81,993	2019	229 m	DALIAN MARINE - 6S60ME-C8	4.1	B
1384	TOMINI DESTINY IMO 9718155	63,590	2017	200 m	Yichang - 5S60ME-C8	4.1	B
1386	BUNA ARROW IMO 9687071	55,967	2014	190 m	Mitsui - 5S60MC-C	4.1	C
1389	SEVA IMO 9336000	76,948	2007	225 m	Hitachi - 6S60MC	4.1	C
1392	PAN IMPERIAL IMO 9699361	63,567	2016	200 m	MAN - 5S60ME-C8	4.1	C
1388	WECO HOLLI IMO 9929699	61,275	2022	200 m	MAN - 6S50ME-B9	4.1	C
1394	AGRAFA IMO 9947304	63,564	2024	200 m	Mitsui E&S DU Co Ltd 6S50ME-C9-EGRBP	4.1	C
1393	W-SKY IMO 9476666	92,929	2011	229 m	HHI - 6S60MC-C7	4.1	C
1387	TAHITI ONE IMO 9597032	81,291	2012	229 m	MAN - 7S50MC-C8	4.1	C
1385	GRETKE OLDENDORFF IMO 9681962	80,444	2015	229 m	MAN - 6S60ME-C8	4.1	C
1391	ULTRA INFINITY IMO 9767481	61,188	2016	200 m	MAN - 6S50MC-C8	4.1	C
1390	VIENNA IMO 9403205	58,736	2009	190 m	Mitsui - 6S50MC-C	4.1	C
1400	AMANI IMO 9729910	61,436	2016	200 m	Hudong Heavy Machinery - 6S50ME-B9	4.1	C
1399	STAR SANTOS IMO 9699347	63,537	2015	200 m	MAN - 5S60ME-C8	4.1	C
1398	AVAX IMO 9289312	75,399	2006	225 m	STX - 7 S 50 MC-C	4.1	C
1397	COMMON ATLAS IMO 9669378	62,985	2014	200 m	Doosan - 5G60ME-C9	4.1	C
1396	GLAFKOS IMO 9696448	63,519	2016	200 m	MAN - 5S60ME-C8	4.1	C
1395	ZOITSA SIGALA IMO 9700861	63,500	2014	200 m	Hudong Heavy Machinery - 5S60ME-C8 Tier II	4.1	C

Page 28 of 69 — 3,436 vessels

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Engine intelligence

Which engines power the greenest fleets?

The main engine is the single largest CO₂ source on board — typically well over 80% of a ship's emissions come from propulsion. We aggregated this ranking the other way around: every engine design is scored by the measured carbon intensity of the vessels carrying it, licensee-built units merged under their design brand. The verdict from the 2025 data — modern dual-fuel designs like MAN B&W's ME-GI and WinGD's X-DF families, together with EGR/SCR-abated and ultra-long-stroke G-type engines, consistently power the most emission-friendly ships in service.

Emission-friendly engine ranking

AER (Annual Efficiency Ratio) = annual CO₂ emissions ÷ (deadweight × distance sailed), the IMO carbon-intensity metric used for CII ratings. It is built only from measured CO₂, distance and deadweight — not the self-reported cargo transport-work figure, which is unreliable. Implausible outliers (top 2% per segment) are excluded. Grade A–E reflects each vessel's rank within its segment. Source: EMSA THETIS-MRV.