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Chemical tanker — emissions rankings

Chemical tankers are the artisans of the tanker world: smaller ships, dozens of segregated stainless-steel tanks, and port-intensive parcel trades that string many short legs together. All of that works against headline efficiency — more time manoeuvring and heating cargo, less time at steady economical speed.

Their MRV figures should be read with that trade pattern in mind: a chemical carrier's CO₂ per tonne-mile naturally exceeds a crude tanker's, without implying worse technology. Within the type, the ranking rewards the modern IMO II fleets running dense European parcel networks.

Verified data reported under the EU MRV regulation (source: EMSA / THETIS-MRV).

Most efficient: Chemical tanker

Ranked by CO₂ emitted per tonne of cargo carried over one nautical mile — the metric that makes ships of different sizes comparable. Lower is better.

#VesselCompanyRegistryEfficiency
1VoyagerWangang (tianjin) International Shipping Co.,ltdMonroviatop 1%
2Besiktas Iceland—VALLETTAtop 1%
3Ls Christine—Madeiratop 1%
4Hafnia BeijingDonnelly Tanker Management LtdVallettatop 1%
5Bow LeopardSynergy Pacific Private LimitedSingaporetop 1%
6Uacc Sila—MAJUROtop 1%
7Silver RayMtm Ship Management Pte LtdMonroviatop 1%
8Sinar Malahayati—Singaporetop 1%
9Lavender RayMtm Ship Management Pte LtdMonroviatop 1%
10Scarlet RayMtm Ship Management Pte LtdMonroviatop 1%
11Lilac RayMtm Ship Management Pte LtdMonroviatop 1%
12Chemroad QueenIino Marine Service Co., Ltd.PANAMAtop 1%
13Amber RayMtm Ship Management Pte LtdMONROVIAtop 1%
14Uacc Marah—Majurotop 1%
15Aqua RayMtm Ship Management Pte LtdMonroviatop 1%
16Seaways OliveHeroic Pisces IncMAJUROtop 1%
17Nord Andes—KOBENHAVNtop 1%
18Ardmore DauntlessAnglo Ardmore Ship Management Pte. Ltd.Majurotop 1%
19Dat VenusExecutive Ship Management Pte LtdMajurotop 1%
20Al AmeratOman Ship Management Company LlcPanamatop 1%
21Torm EmilieTorm A/sFrederikshavntop 1%
22Sea ElephantPantheon Tankers Management LtdMajurotop 1%
23Magnolia Express—Majurotop 1%
24Solar KarenColumbia Shipmanagement LtdMonroviatop 1%
25Ardmore PurposeAnglo Ardmore Ship Management Pte. Ltd.Majurotop 1%

Biggest CO₂ emitters

#VesselCompanyCO₂ 2025 (t)
1Bow StarOdfjell Management AS18,388
2Bow SeaOdfjell Management AS18,148
3Northern SpiritTb Marine Shipmanagement Gmbh & Co. Kg17,006
4Jose ProgressVigorous & Ksk ( Panama) S.a.16,697
5Stromboli MNavalmed Ship Management Srl16,693
6Bow SunOdfjell Management AS16,485
7Red Diamond3m Shipping16,270
8Atlantic SpiritTb Marine Shipmanagement Gmbh & Co. Kg15,607
9Green Spinel3m Shipping15,422
10Iver AbilityIver Ships Bv15,340
Oil tankerBulk carrierLNG carrierVehicle carrierGeneral cargo shipRo-pax shipPassenger ship (Cruise Passenger ship)