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)

#459 of 3,436 bulk carriers

CO₂ intensity

3.2 g CO₂/dwt·nm

vs segment average (4.71)

-32% 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
444	UNITY SAKURA IMO 9782209	84,808	2016	229 m	Mitsui - 6S60ME-C	3.2	A
455	GOLDEN FAITH IMO 9977177	84,987	2022	227 m	MAN-B&W 6S60ME-C8	3.2	A
454	TAI KINSHIP IMO 9883857	84,509	2021	229 m	Mitsui - 6S60ME-C8	3.2	A
456	CENTURION SIGNIFER IMO 9951898	63,686	2023	200 m	MAN-B&W 6S50ME-B9	3.2	A
453	PHILOSOPHES IMO 9970272	82,644	2024	229 m	MAN-B&W 6S60ME-C10	3.2	A
458	BABITONGA IMO 9858292	81,770	2019	229 m	Mitsui - 1DE : 2 SA 6 CY	3.2	A
457	TRANSCENDEN WISDOM IMO 9900083	82,561	2019	229 m	MAN - 6S60ME-C10	3.2	A
452	AGRI PRINCESS IMO 9718985	82,084	2017	229 m	Hyundai - 6S60ME-C8	3.2	A
460	FUKUJIN MARU IMO 1048968	63,854	2025	200 m	MAN-B&W 6S50ME-C9	3.2	A
462	GCL LEADER IMO 9902550	81,946	2021	229 m	Mitsui - 6S60ME-C8.5	3.2	A
459	GCL LAZARO IMO 9957476	82,447	2023	229 m	MAN-B&W 6S60ME-C10	3.2	A
465	TIANA IMO 9317470	77,283	2008	225 m	Kawasaki - 5S60MC-C	3.2	A
464	NEW WAVELET IMO 9911733	81,984	2021	229 m	MAN - 6S60ME-C8	3.2	A
461	LIVORNO IMO 9855549	81,651	2019	229 m	Yichang - 6S60ME-C8	3.2	A
463	LILA LESVOS IMO 9345764	171,680	2006	289 m	MAN - 6S70MC	3.2	A
469	YM OPUS IMO 9518206	81,863	2015	229 m	MAN - 6S60ME-C8.1	3.2	A
468	KING MILO IMO 9609512	77,198	2012	225 m	Kawasaki - 5S60MC-C	3.2	A
470	AMALIA IMO 9770634	81,783	2019	229 m	Mitsui - 6S60ME-C8	3.2	A
467	OCEAN AZURE IMO 9960150	63,702	2023	200 m	MAN-B&W 6S50ME-B9	3.2	A
474	LEONARDO IMO 1030832	82,013	2025	229 m	MAN-B&W 6G50ME-C9	3.2	A
473	SAKIZAYA GLORY IMO 9713791	84,883	2016	229 m	MAN - 6S60ME-C	3.2	A
472	SSI PHOENIX IMO 9969182	63,734	2024	200 m	MAN-B&W 6S50ME-C10	3.2	A
466	VITAOCEAN IMO 9470492	82,250	2013	229 m	MAN - 6S60MC-C	3.2	A
471	NORVIC COPENHAGEN IMO 9968956	63,640	2023	200 m	MAN-B&W 6S50ME-B9	3.2	A
475	TALA WEALTH IMO 1037658	63,862	2025	200 m	MAN-B&W 6S50ME-C9	3.2	A
477	GRACE LOUISE IMO 9913523	82,519	2022	229 m	Mitsui - 6S60ME-C10	3.2	A
488	CL GANJIANG IMO 9953327	64,747	2023	200 m	MAN-B&W 6S50ME-C9	3.2	A
481	STELLA NAVIS IMO 9909039	81,965	2021	229 m	MAN - 6S60ME-C8	3.2	A
480	BROAD BONNIE IMO 9362231	76,629	2006	225 m	Mitsui - 6S60MC	3.2	A
487	BROAD FORWARD IMO 9287182	77,171	2006	225 m	Kawasaki - 6S60MC-C	3.2	A
486	LILA NANGLI IMO 9596337	180,184	2010	292 m	MAN - 6S70MC-C	3.2	A
485	KING LOONG IMO 9304124	77,430	2006	225 m	Kawasaki - 6S50MC-C	3.2	A
484	SHANDONG XIN SHENG IMO 1026594	81,742	2025	229 m	MAN-B&W 6G50ME-C9	3.2	A
483	PORT FUKUOKA IMO 9932799	64,611	2022	200 m	Japan Engine Corp - Akashi 6UEC50LSH-EcoC3	3.2	A
482	GALAXY GLOBE IMO 9723629	81,167	2015	229 m	MAN - 6S60ME-C8	3.2	A
476	NAVIOS FELICITY I IMO 9864679	81,962	2020	229 m	MAN - 6S60ME-C8	3.2	A
479	SAKIZAYA INTEGRITY IMO 9780146	81,010	2016	229 m	Mitsui - 6S60ME-C8	3.2	A
478	BULK SWEDEN IMO 9691589	77,126	2014	225 m	MAN - 6S60ME-C	3.2	A
490	CHISE IMO 9942160	64,678	2022	200 m	MAN - 6S50ME-C9	3.2	A
489	SPAR MAIA IMO 1015155	63,550	2024	200 m	MAN-B&W 6G50ME-C9	3.2	A
493	IONIC PLEIONE IMO 9785354	84,850	2017	229 m	Hitachi - 6S60ME-C8	3.2	A
492	NBA MILLET IMO 9518189	81,955	2014	229 m	MAN - 6S60MC-C	3.2	A
491	BASIC SUN IMO 9985617	81,913	2024	229 m	6X52	3.2	A
500	LEM MARIGOLD IMO 9845805	64,663	2020	200 m	MAN - 7G50ME-C9	3.2	A
499	MAROUDIO IMO 9815965	64,723	2022	200 m	MAN - 6S50MC-C	3.2	A
498	CL YICHUN IMO 9938793	82,304	2023	229 m	MAN - 6S60ME-C8	3.2	A
497	MEDI ARGENTARIO IMO 9771298	89,499	2018	235 m	Mitsui - 6S60ME-C8.2	3.2	A
496	YM RESPECT IMO 9937218	82,599	2022	229 m	Mitsui Engineering & Shipbuilding C Ltd - Japan 6S60ME-C10-EGRBP	3.2	A
495	NORDIC ODIN IMO 9687239	76,180	2015	225 m	MAN - 5S60MC-C	3.2	A
494	COTINGA IMO 9786011	82,061	2019	229 m	DALIAN MARINE - 6S60ME-C8 (Tier II)	3.2	A

Page 10 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.