Japan flag, 2025
Ships whose port of registry belongs to Japan, as estimated from the THETIS-MRV reports for 2025, and the companies operating them. Each company counts only its ships under this flag.
At a glance
Ships
78
12 with a blank port, flag from another year
Emitted
754,926 t
CO₂, all ships under the flag
EU ETS allowances due
€18.5m
247,180 t of allowances at the chosen price
Largest operator: NYK
€4.1m
21 ships, 22% of the flag's allowances
Ship types under this flag
CO₂ by segment.
- Vehicle carrier300,078 t
- Container292,970 t
- Bulk carrier84,973 t
- LNG carrier42,770 t
- Chemical tanker28,932 t
- Gas carrier (LPG)2,598 t
- Other1,946 t
- Reefer545 t
- Ro-ro114 t
Companies by EU ETS cost
The 19 operators with most EU ETS allowances due for their Japan-flagged ships in 2025. Companies of one group are summed, as on the compare page; their ships under other flags are not counted here.
| # | Operator | Main segment | Shipsunder Japan | CO₂emitted, total | AllowancesEU ETS cost | vs segment medianlower is better | vs similar-size shipssame segment, lower is better |
|---|---|---|---|---|---|---|---|
| 1 | NYK(3 companies) | Vehicle carrier | 21 | 137,701 t | €4.1m | −24% | −14% |
| 2 | MOL(5 companies) | Vehicle carrier | 17 | 147,033 t | €3.4m | +12% | −6% |
| 3 | ONESEA SOLUTIONS PTE LTD | Container | 7 | 162,141 t | €2.6m | −39% | −27% |
| 4 | Bernhard Schulte | Container | 2 | 77,558 t | €2.2m | – | – |
| 5 | K Line(2 companies) | Vehicle carrier | 8 | 64,270 t | €1.8m | −20% | +2% |
| 6 | NS United Kaiun Kaisha, Ltd. | Bulk carrier | 1 | 43,277 t | €1.1m | – | – |
| 7 | Mitsui O.S.K. Lines Ltd. | Container | 1 | 30,722 t | €1.0m | – | – |
| 8 | Toko Unyu Co Ltd | Vehicle carrier | 3 | 17,468 t | €486k | – | – |
| 9 | ASAHI SHIPPING CO., LTD. | Bulk carrier | 2 | 15,478 t | €426k | – | – |
| 10 | EXCEL MARINE CO., LTD. | Vehicle carrier | 2 | 14,546 t | €406k | – | – |
| 11 | HACHIUMA STEAMSHIP CO.,LTD. | Vehicle carrier | 4 | 12,498 t | €334k | – | – |
| 12 | MITSUBISHI ORE TRANSPORT CO., LTD. | Vehicle carrier | 2 | 8,068 t | €212k | – | – |
| 13 | Sugahara Kisen Co.,Ltd | Vehicle carrier | 1 | 5,619 t | €154k | – | – |
| 14 | MIZUHO SANGYO CO., LTD. | Bulk carrier | 1 | 4,583 t | €120k | – | – |
| 15 | MAGSAYSAY MOL SHIP MANAGEMENT, INC. | Bulk carrier | 1 | 3,981 t | €106k | – | – |
| 16 | KITAURA KAIUN CO., LTD. | Other | 1 | 1,946 t | €54k | – | – |
| 17 | MISUGA KAIUN CO., LTD. | Bulk carrier | 2 | 7,490 t | €45k | – | – |
| 18 | TOEI REEFER LINE LTD. | Reefer | 1 | 545 t | €23k | – | – |
| 19 | UNIVERSAL MARINE CORPORATION | Bulk carrier | 1 | 0 t | €0 | – | – |
Show by ISM company (DoC holder) instead of group
| # | Operator | Main segment | Shipsunder Japan | CO₂emitted, total | AllowancesEU ETS cost | vs segment medianlower is better | vs similar-size shipssame segment, lower is better |
|---|---|---|---|---|---|---|---|
| 1 | NYK SHIPMANAGEMENT PTE LTD | Vehicle carrier | 19 | 127,183 t | €3.8m | −24% | −14% |
| 2 | ONESEA SOLUTIONS PTE LTD | Container | 7 | 162,141 t | €2.6m | −39% | −27% |
| 3 | BERNHARD SCHULTE SHIPMANAGEMENT (HONG KONG) LIMITED PARTNERSHIP | Container | 2 | 77,558 t | €2.2m | – | – |
| 4 | MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD. | Vehicle carrier | 8 | 53,102 t | €1.5m | +46% | +6% |
| 5 | "K" Line RoRo Bulk Ship Management Co., Ltd. | Vehicle carrier | 6 | 53,067 t | €1.5m | −18% | +4% |
| 6 | NS United Kaiun Kaisha, Ltd. | Bulk carrier | 1 | 43,277 t | €1.1m | – | – |
| 7 | Mitsui O.S.K. Lines Ltd. | Container | 1 | 30,722 t | €1.0m | – | – |
| 8 | MOL Ship Management Co., Ltd. | Vehicle carrier | 3 | 31,156 t | €833k | – | – |
| 9 | MOL LNG TRANSPORT CO., LTD. | LNG carrier | 1 | 22,001 t | €592k | – | – |
| 10 | Toko Unyu Co Ltd | Vehicle carrier | 3 | 17,468 t | €486k | – | – |
| 11 | ASAHI SHIPPING CO., LTD. | Bulk carrier | 2 | 15,478 t | €426k | – | – |
| 12 | EXCEL MARINE CO., LTD. | Vehicle carrier | 2 | 14,546 t | €406k | – | – |
| 13 | MOL Tankship Management Pte. Ltd. | Chemical tanker | 1 | 11,829 t | €386k | – | – |
| 14 | HACHIUMA STEAMSHIP CO.,LTD. | Vehicle carrier | 4 | 12,498 t | €334k | – | – |
| 15 | Kawasaki Kisen Kaisha, Ltd | Vehicle carrier | 2 | 11,203 t | €278k | – | – |
| 16 | NYK LNG Shipmanagement Ltd | LNG carrier | 1 | 7,921 t | €213k | – | – |
| 17 | MITSUBISHI ORE TRANSPORT CO., LTD. | Vehicle carrier | 2 | 8,068 t | €212k | – | – |
| 18 | Sugahara Kisen Co.,Ltd | Vehicle carrier | 1 | 5,619 t | €154k | – | – |
| 19 | MIZUHO SANGYO CO., LTD. | Bulk carrier | 1 | 4,583 t | €120k | – | – |
| 20 | MAGSAYSAY MOL SHIP MANAGEMENT, INC. | Bulk carrier | 1 | 3,981 t | €106k | – | – |
| 21 | MOL GLOBAL SHIP MANAGEMENT PTE. LTD. | Chemical tanker | 4 | 28,945 t | €83k | – | – |
| 22 | NYK Energy Ocean Shipmanagement Pte Ltd | Gas carrier (LPG) | 1 | 2,598 t | €81k | – | – |
| 23 | KITAURA KAIUN CO., LTD. | Other | 1 | 1,946 t | €54k | – | – |
| 24 | MISUGA KAIUN CO., LTD. | Bulk carrier | 2 | 7,490 t | €45k | – | – |
| 25 | TOEI REEFER LINE LTD. | Reefer | 1 | 545 t | €23k | – | – |
| 26 | UNIVERSAL MARINE CORPORATION | Bulk carrier | 1 | 0 t | €0 | – | – |
- Allowances :
- EU ETS allowances due for the year, at the chosen price.
- vs segment median :
- CO₂ per transport work against the median segment ship. Below 0% is better.
- vs similar-size ships :
- CO₂ per transport work of the median ship, against the median ship of the same size band in its segment (whole segment where the segment has no size bands). Below 0% is better.
EU ETS allowances are not a tax: companies buy and surrender one allowance per tonne of CO₂ in scope. Figures use the 2025 phase-in share and an EUA price of €75 per tonne, which the commercial view lets you change. The flag is estimated from the port of registry; see the Flags page.