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)

#363 of 3,436 bulk carriers

CO₂ intensity

3.1 g CO₂/dwt·nm

vs segment average (4.71)

-34% 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
354	HSL VEGAS IMO 9928372	81,981	2022	229 m	Hudong Heavy Machinery - 6S50ME-B9	3.1	A
353	RICHLAND SINGAPORE IMO 9929039	82,037	2022	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.1	A
352	RAIATEA IMO 9580376	178,861	2011	292 m	Hyundai - 6S70MC-C	3.1	A
351	RIK OLDENDORFF IMO 9463657	121,290	2011	260 m	Doosan - DOOSAN-MAN 6S60MC-C	3.1	A
358	QC PUNNY IMO 9984522	63,425	2024	200 m	MITSUI E&S Co., Ltd. Marine Propulsion Systems Div. Tamano Factory	3.1	A
357	MACHERAS IMO 9698850	81,000	2015	229 m	MAN - 6S60ME-C	3.1	A
359	YASA PLUTO IMO 1014670	64,009	2025	199 m	MAN-B&W 6G50ME-C9	3.1	A
356	SHINE PEARL IMO 9971496	82,426	2024	229 m	Hudong Heavy Machinery Co Ltd - China 6S60ME-C10-HPSCR	3.1	A
362	LINDEN TRADER IMO 9867578	82,226	2021	229 m	Kawasaki - 6S60ME-C8	3.1	A
361	ACRUX AMELIA IMO 9909194	82,577	2021	229 m	MAN - 6S60ME-C10	3.1	A
360	TOMAHAWK IMO 9737591	82,056	2017	229 m	DALIAN MARINE - 6S60ME-C8	3.1	A
355	KYPROS SEA IMO 9675602	77,128	2014	225 m	MAN - 6S60MC	3.1	A
364	GLBS GIGI IMO 9623738	81,817	2014	229 m	MAN - 6S60MC-C	3.1	A
363	AP DUBROVNIK IMO 9952660	82,249	2023	229 m	MAN - 6S60ME-C10	3.1	A
368	ZY IDOL IMO 1016472	64,675	2025	200 m	MAN-B&W 6S50ME-C9	3.1	A
372	NEW HYDRA IMO 9579781	179,258	2011	292 m	HHI - 6S70MC-C7	3.1	A
366	FEI YUN JIANG IMO 9990820	64,725	2024	200 m	MAN-B&W 6S50ME-C9	3.1	A
371	STAR SOPHIA IMO 9361201	82,269	2007	229 m	Mitsui - 7 S 50 MC-C	3.1	A
370	PARTNERSHIP IMO 9597848	179,213	2010	292 m	Hyundai - 6S70MC-C	3.1	A
365	CL ZHENJIANG IMO 9728801	81,121	2019	229 m	Doosan - 6S60ME-C8	3.1	A
367	YM PACIFICO IMO 9544102	81,812	2015	229 m	MAN - 6S60ME-C8	3.1	A
369	GOLDEN WAVE IMO 9977153	84,984	2025	227 m	MAN-B&W 6S60ME-C10	3.1	A
380	NORD TAURUS IMO 9782182	81,718	2016	228 m	Hitachi - 6S60ME-C8	3.1	A
381	VITALITY DIVA IMO 9951903	63,665	2023	200 m	MAN-B&W 6S50ME-B9	3.1	A
378	MICHELANGELO IMO 1030820	82,000	2025	229 m	MAN-B&W 6G50ME-C9	3.1	A
379	MINT IMO 9861081	82,015	2020	229 m	Hudong Heavy Machinery - 6S60ME-C8 (Tier II)	3.1	A
377	AM SHRADDHA IMO 9837004	81,754	2019	229 m	MAN - 6S60ME-C8	3.1	A
376	PORT KOBE IMO 9767534	63,520	2016	200 m	Hitachi - 6S50ME-B9	3.1	A
375	ANNA J IMO 9929340	82,279	2022	229 m	Mitsui - 6S60ME-C10	3.1	A
374	ROSTRUM SCEPTIC IMO 9955923	82,191	2024	229 m	MAN - 6S60ME-C10	3.1	A
373	SEACON SHANGHAI IMO 9847889	80,811	2019	228 m	MAN - 6S60ME-C8	3.1	A
382	DOUKATO IMO 9840659	85,123	2019	229 m	Mitsui - 6S60ME-C8	3.1	A
383	ZHONG MENG HANG LIAN IMO 9260122	74,832	2001	225 m	Hudong Heavy Machinery - 5S60MC	3.1	A
386	BW NARA IMO 9836373	81,759	2020	229 m	MAN - 6S50ME-B9.3	3.1	A
385	SWANSEA IMO 9966570	90,023	2021	229 m	Hudong Heavy Machinery Co Ltd - China 5G60ME-C10	3.1	A
384	CRIMSON KINGDOM IMO 9748033	84,860	2016	229 m	Mitsui - 6S60ME-C	3.1	A
390	ADMIRAL JIMMU IMO 9884617	82,024	2020	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.1	A
389	MARAN GLORY IMO 9434383	180,575	2012	292 m	STX - 6S70MC-CMKVII	3.1	A
388	GIRASOLE RIVER IMO 9882322	81,982	2020	229 m	Hudong Heavy Machinery - 6S60ME-C8	3.1	A
387	KEY SONORITY IMO 9836359	81,691	2020	229 m	MAN - 6S60ME-C8	3.1	A
392	NORSE PROGRESS IMO 9964871	66,312	2024	200 m	MAN-B&W 6S50ME-C9	3.1	A
397	CARLTON TRADER IMO 9937567	82,237	2023	229 m	Yichang - 6S60ME-C8	3.1	A
396	CECI IMO 9340544	82,338	2009	225 m	MAN - 5S60MC-C	3.1	A
395	SHINE AMBER IMO 9971458	82,406	2023	229 m	Dalian Marine Diesel Co Ltd - China 6S60ME-C10-HPSCR	3.1	A
394	CEMTEX RENAISSANCE IMO 9599119	98,681	2011	240 m	Mitsui - 6S60MC-C	3.1	A
393	STAR EXPLORER IMO 9989948	82,362	2024	229 m	MAN-B&W 6S60ME-C8	3.1	A
391	BH POWER IMO 1024649	82,197	2024	229 m	MAN-B&W 6S60ME-C10	3.1	A
400	XH SQUARE LEG IMO 1019852	83,055	2024	229 m	MAN-B&W 6S50ME-C9	3.1	A
399	STAR LYDIA IMO 9673795	81,187	2013	229 m	Diesel United - 6RT-flex58T	3.1	A
398	BETEIGEUZE IMO 9313280	77,089	2007	225 m	Kawasaki - 5S60MC-C	3.1	A

Page 8 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.