Most Emission-Efficient General Cargos
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 2024. Lower is greener. Pick a segment and size class to see the greenest vessels first.
| # | Vessel | Size (DWT) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 1 |
YONG XING
IMO 9930911
|
61,642 | 2022 |
3.2
|
A |
| 2 |
MAITACA ARROW
IMO 9515228
|
73,296 | 2013 |
3.5
|
A |
| 3 |
GREEN PECEM
IMO 9976484
|
77,173 | 2024 |
3.6
|
A |
| 4 |
ZHONG YUAN HAI YUN KAI TUO
IMO 9837640
|
62,050 | 2018 |
3.6
|
A |
| 5 |
TANCHOU ARROW
IMO 9567740
|
73,296 | 2014 |
3.7
|
A |
| 6 |
AVOCET ARROW
IMO 9448255
|
62,823 | 2015 |
3.8
|
A |
| 7 |
COSCO SHIPPING TENG DA
IMO 9928932
|
61,645 | 2023 |
3.8
|
A |
| 9 |
TAI XING
IMO 9930909
|
61,642 | 2021 |
3.9
|
A |
| 8 |
OSPREY ARROW
IMO 9687174
|
62,841 | 2015 |
3.9
|
A |
| 10 |
TUJU ARROW
IMO 9443920
|
72,863 | 2010 |
3.9
|
A |
| 11 |
COSCO SHIPPING XING WANG
IMO 9872183
|
62,013 | 2020 |
4.0
|
A |
| 12 |
COSCO SHIPPING JIN XIU
IMO 9872169
|
62,002 | 2019 |
4.0
|
A |
| 13 |
LAWIN ARROW
IMO 9687162
|
62,841 | 2014 |
4.0
|
A |
| 14 |
COSCO SHIPPING CHANG SHENG
IMO 9928918
|
61,567 | 2022 |
4.0
|
A |
| 15 |
DELOS DAWN
IMO 9363675
|
52,224 | 2008 |
4.0
|
A |
| 16 |
DEVBULK GULTEN
IMO 9659189
|
40,614 | 2013 |
4.1
|
A |
| 17 |
DUNNII
IMO 9824978
|
62,346 | 2019 |
4.1
|
A |
| 18 |
HERBERT
IMO 9931551
|
61,762 | 2022 |
4.1
|
A |
| 19 |
PILECKI
IMO 9931563
|
61,747 | 2022 |
4.1
|
A |
| 21 |
GREEN MUNGUBA
IMO 9976496
|
77,216 | 2024 |
4.1
|
A |
| 20 |
SSI ENDEAVOUR
IMO 9883053
|
37,910 | 2020 |
4.1
|
A |
| 22 |
PACIFIC VITALITY
IMO 9913236
|
61,670 | 2022 |
4.1
|
A |
| 23 |
COSCO SHIPPING VISION
IMO 9881677
|
61,942 | 2021 |
4.1
|
A |
| 24 |
COSCO SHIPPING PENG CHENG
IMO 9872195
|
62,002 | 2020 |
4.1
|
A |
| 25 |
JETOUR
IMO 9317377
|
54,881 | 2006 |
4.1
|
A |
| 26 |
ROBUSTA
IMO 9824992
|
62,361 | 2019 |
4.1
|
A |
| 27 |
MACAW ARROW
IMO 9566617
|
73,296 | 2014 |
4.2
|
A |
| 28 |
COSCO SHIPPING WISDOM
IMO 9928889
|
61,570 | 2022 |
4.2
|
A |
| 29 |
YU AN
IMO 9990167
|
61,468 | 2023 |
4.2
|
A |
| 31 |
SAGA FLORA
IMO 9502348
|
55,807 | 2018 |
4.2
|
A |
| 30 |
THOR FEARLESS
IMO 9317341
|
54,881 | 2005 |
4.2
|
A |
| 32 |
BC PISTI
IMO 9851359
|
39,287 | 2019 |
4.2
|
A |
| 33 |
COSCO SHIPPING GLORY
IMO 9881641
|
61,961 | 2020 |
4.2
|
A |
| 34 |
TUNA S
IMO 9779032
|
38,575 | 2019 |
4.2
|
A |
| 35 |
MISAGO ARROW
IMO 9448243
|
62,823 | 2015 |
4.2
|
A |
| 36 |
EAGLE ARROW
IMO 9529592
|
62,967 | 2011 |
4.3
|
A |
| 37 |
COSCO SHIPPING ZHUO YUE
IMO 9872157
|
61,990 | 2019 |
4.3
|
A |
| 38 |
EMMA JANNEKE
IMO 9992256
|
39,974 | 2024 |
4.3
|
A |
| 39 |
SAGA FANTASY
IMO 9658953
|
55,973 | 2013 |
4.3
|
A |
| 40 |
COSCO SHIPPING CHANG QING
IMO 9872171
|
62,000 | 2020 |
4.3
|
A |
| 41 |
COSCO SHIPPING FOUNTAIN
IMO 9928891
|
61,495 | 2022 |
4.3
|
A |
| 43 |
PIPIT ARROW
IMO 9552898
|
62,980 | 2012 |
4.3
|
A |
| 42 |
SALIGNA
IMO 9825001
|
62,358 | 2019 |
4.3
|
A |
| 44 |
COSCO SHIPPING SINCERE
IMO 9928877
|
61,641 | 2022 |
4.4
|
A |
| 45 |
DEVBULK SARE
IMO 9544152
|
40,445 | 2012 |
4.4
|
A |
| 46 |
DELTA PEARL
IMO 9401831
|
52,341 | 2009 |
4.4
|
A |
| 48 |
SAGA FRAM
IMO 9613874
|
54,930 | 2013 |
4.4
|
A |
| 47 |
SAGA FUJI
IMO 9609457
|
55,973 | 2013 |
4.4
|
A |
| 49 |
OKIANA
IMO 9253868
|
57,599 | 2004 |
4.4
|
A |
| 50 |
PELICAN ARROW
IMO 9495923
|
62,942 | 2011 |
4.4
|
A |
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.