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Biggest industrial CO₂ emitters in Japan

The highest-emitting industrial facilities in Japan ranked by estimated annual CO₂e (Climate TRACE, modelled). Open data.

#FacilityTypeCountryt CO₂e/yr
1JFE West Japan Works (Fukuyama) steel plantSteel PlantJapan19,085,123
2JFE West Japan Works (Kurashiki) steel plantSteel PlantJapan13,044,457
3Nippon East Japan Works (Kimitsu) steel plantSteel PlantJapan12,921,079
4Nippon Kyushu Works (Oita Area, Oita) steel plantSteel PlantJapan11,600,217
5Nippon East Japan Works (Kashima) steel plantSteel PlantJapan9,268,493
6Kobe Kakogawa Works steel plantSteel PlantJapan7,135,332
7Nippon Nagoya steel plantSteel PlantJapan6,948,397
8JFE East Japan Works (Chiba) steel plantSteel PlantJapan5,434,534
9Nippon Kyushu Works (Yawata Area, Tobata) steel plantSteel PlantJapan4,653,899
10Nippon Kansai Works (Wakayama Area, Wakayama) steel plantSteel PlantJapan4,074,166
11Nippon Setouchi Works (Hirohata Area) steel plantSteel PlantJapan3,541,361
12Mitsubishi Materials Kanda Cement PlantCement PlantJapan3,022,664
13ENEOS Mizushima RefineryRefineryJapan2,996,525
14North Nippon Muroran Works steel plantSteel PlantJapan2,191,669
15Idemitsu Kosan Yokkaichi RefineryRefineryJapan2,181,935
16ENEOS Kawasaki RefineryRefineryJapan2,080,342
17Sumitomo Osaka Cement Kochi Cement PlantCement PlantJapan1,974,641
18Cosmo Oil Chiba RefineryRefineryJapan1,940,569
19Ube Industries Isa Cement PlantCement PlantJapan1,793,454
20Idemitsu Hokkaido RefineryRefineryJapan1,644,550
21ENEOS Kashima RefineryRefineryJapan1,640,471
22Idemitsu Kosan Chiba RefineryRefineryJapan1,625,756
23Idemitsu Kosan Aichi RefineryRefineryJapan1,454,624
24ENEOS Negishi RefineryRefineryJapan1,364,480
25Sumitomo Osaka Cement Ako Cement PlantCement PlantJapan1,273,046
26ENEOS Sakai RefineryRefineryJapan1,206,482
27ENEOS Sendai RefineryRefineryJapan1,193,308
28Tosoh Nanyo Cement PlantCement PlantJapan1,180,850
29OIREC Chiba RefineryRefineryJapan1,103,803
30ENEOS Oita RefineryRefineryJapan1,090,460
31Taiyo Oil Shikoku RefineryRefineryJapan1,069,669
32JPN-Takaishi_ammoniaChemical PlantJapan1,066,712
33Aso Cement Kanda Cement PlantCement PlantJapan1,040,172
34Keiyo Ethylene , Ichihara, ChibaPetrochemicalJapan970,117
35Idemitsu Kosan Tokuyama , TokuyamaPetrochemicalJapan970,117
36Ube Industries Ube Cement PlantCement PlantJapan956,906
37Taiheiyo Cement Omi Cement PlantCement PlantJapan934,377
38Resonac Oita, KK OitaPetrochemicalJapan868,888
39Cosmo Oil Sakai RefineryRefineryJapan855,661
40Taiheiyo Cement Saitama Cement PlantCement PlantJapan847,925
41Taiheiyo Cement Kamiiso Cement PlantCement PlantJapan843,082
42Taiheiyo Cement Fujiwara Cement PlantCement PlantJapan810,669
43Nippon Steel Muroran Cement PlantCement PlantJapan805,980
44Shizuoka (Shimizu) Alumina RefineryAluminium SmelterJapan796,230
45Aso Cement Tagawa Cement PlantCement PlantJapan782,869
46Mitsui Chemicals Chiba, Ichihara, ChibaPetrochemicalJapan777,500
47Idemitsu Kosan Keihin RefineryRefineryJapan767,457
48Taiheiyo Cement Ofunato Cement PlantCement PlantJapan761,740
49Fuji Oil Sodegaura RefineryRefineryJapan736,584
50Myojo Cement Itoigawa Cement PlantCement PlantJapan710,267
51Asahi Kasei Mitsubishi Chemical Ethylene Corp, Kurasiki, OkayamaPetrochemicalJapan697,360
52Tosoh Yokkaichi Complex, YokkaichiPetrochemicalJapan693,142
53ENEOS Tonen Chemcial, KawasakiPetrochemicalJapan690,330
54Mitsubishi Chemical Kashima, Kashima (Unit 2)PetrochemicalJapan681,894
55Hachinohe Cement Hachinohe Cement PlantCement PlantJapan675,856
56Maruzen Petrochemical, ChibaPetrochemicalJapan674,864
57Taiheiyo Cement Oita Cement PlantCement PlantJapan670,290
58ENEOS Marifu RefineryRefineryJapan659,320
59Daio Paper Corporation - Mishima MillPulp & Paper MillJapan657,794
60Cosmo Oil Yokkaichi RefineryRefineryJapan655,429
61Sumitomo Osaka Cement Gifu Cement PlantCement PlantJapan644,402
62Osaka Petrochemical, Takaishi City, OsakaPetrochemicalJapan639,715
63Ube Industries Kanda Cement PlantCement PlantJapan592,454
64Idemitsu Kosan Chiba, ChibaPetrochemicalJapan582,070
65ENEOS Petrochemical Kawasaki, KawasakiPetrochemicalJapan568,011
66Nippon Steel Kitakyushu Cement PlantCement PlantJapan534,961
67Sumitomo Osaka Cement Tochigi Cement PlantCement PlantJapan510,706
68DC Co Kawasaki Cement PlantCement PlantJapan475,468
69Mitsubishi Materials Yokoze Cement PlantCement PlantJapan467,110
70Taiheiyo Cement Kumagaya Cement PlantCement PlantJapan314,996
71Ryukyu Cement Nago Cement PlantCement PlantJapan245,696
72Tsuruga Cement Tsuruga Cement PlantCement PlantJapan237,259
73JPN-Kawasaki_ammoniaChemical PlantJapan232,966
74Osaka Steel Sakai WorksSteel PlantJapan199,522
75Nippon Stainless Steel Yamaguchi Works (Shunan Area) steel plantSteel PlantJapan191,744
76JPN-Toyama_ammoniaChemical PlantJapan189,269
77Idemitsu Kosan Tokuyama RefineryRefineryJapan179,808
78Mitsubishi Materials Iwate Cement PlantCement PlantJapan177,401
79JPN-Ube_ammoniaChemical PlantJapan174,716
80JFE Sendai Works steel plantSteel PlantJapan166,712
81Tokyo Steel Tahara plantSteel PlantJapan150,365
82Shizuoka CityAluminium SmelterJapan139,266
83Daio Paper Corporation - Kani MillPulp & Paper MillJapan115,245
84Nippon Stainless Steel Yamaguchi Works (Hikari Area) steel plantSteel PlantJapan97,836
85Nippon Sanyo Special SteelSteel PlantJapan92,301
86Daido Steel Chita plant (Tokai)Steel PlantJapan86,749
87Aichi Steel Chita Plant (Tokai)Steel PlantJapan86,460
88Kyoei Steel Nagoya Division (Tokai)Steel PlantJapan73,158
89Topy Industries Toyohashi steel plantSteel PlantJapan55,519
90JapanChemical PlantJapan53,814
91JFE Bars & Shapes Himeji Works steel plantSteel PlantJapan52,049
92Kyoei Steel Hirakata Division (Osaka)Steel PlantJapan46,555
93Chubu Steel Plate Nagoya plantSteel PlantJapan46,266
94Tokyo Steel Utsunomiya plantSteel PlantJapan46,266
95Nippon Daishowa Paperboard Co. Ltd - Akita MillPulp & Paper MillJapan44,730
96JFE Bars & Shapes Kashima Works steel plantSteel PlantJapan41,639
97Tokyo Steel Okayama plantSteel PlantJapan40,945
98Godo Steel Funabashi WorksSteel PlantJapan40,483
99Yamato Steel Himeji PlantSteel PlantJapan40,483
100Tokuyama Soda Ash FacilityChemical PlantJapan39,686
101Tokyo Steel Kyushu plantSteel PlantJapan39,210
102JPN-Kashima_ammoniaChemical PlantJapan38,822
103Kyoei Steel Yamaguchi Division (Yamaguchi)Steel PlantJapan33,254
104JPN-Harima_ammoniaChemical PlantJapan6,435
105Toho Tokushu Pulp Pulp MillPulp & Paper MillJapan4,736

Method: ranked from open data — capacity and CO₂e from Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0). Sorted server-side; company-level data only.