Idemitsu Kosan Chiba, Chiba — Japan
Petrochemical in Japan. Approximate location 35.4863, 140.03635.
PetrochemicalJapanCO₂ estimate (modelled)
Idemitsu Kosan Chiba, Chiba is a petrochemical plant in Japan. Its listed capacity is 414,000 t of ethylene. Petrochemical plants crack hydrocarbons at very high temperatures to produce ethylene, propylene and other building-block chemicals — one of the most heat-intensive industrial processes. By capacity it ranks #11 among 12 petrochemical plants in Japan. It emits about 582,070 t CO₂e a year from Climate TRACE. That is 0.36% of the CO₂e from the 105 facilities in Japan that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 8% above the national median for this sector.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-731950.
Data status
Known source data
Calculated from the dataset
Not available
Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.
Similar facilities by modelled emissions
- Borealis AB, Stenungsund · 578,847 t CO₂e/yr · Sweden
- Ilam Petrochemical Company (13th Olefin complex), Lashekan,Ilamm · 586,568 t CO₂e/yr · Iran
- ENEOS Petrochemical Kawasaki, Kawasaki · 568,011 t CO₂e/yr · Japan
- OMV Deutschland GMBH , Burghausen, Bavaria · 564,245 t CO₂e/yr · Germany
- Indorama Ventures Olefins, LLC, Carlyss, La · 558,581 t CO₂e/yr · United States
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Anegasaki · Oil · 3,150 MW · 2 km
- Tokyo Gas Bay power station · Gas · 103 MW · 6 km
- Sodegaura · Gas · 3,600 MW · 6 km
- Shin Nakasode power station · Gas · 112 MW · 6 km
- Nakasode Clean power station · Gas · 100 MW · 6 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
At 414,000 t of ethylene, Idemitsu Kosan Chiba, Chiba is around the median petrochemical plant in Japan (493,000 t of ethylene). Subsector: petrochemical-steam-cracking. As petrochemical plant, it requires high process heat (typically 300–800°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Petrochemical plants crack hydrocarbons at very high temperatures to produce ethylene, propylene and other building-block chemicals — one of the most heat-intensive industrial processes.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 582,070 t CO₂e a year looks like
This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:
Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.
Carbon cost and Scope 1 emissions
At its reported 582k t CO₂e/yr (Scope 1), Idemitsu Kosan Chiba, Chiba carries no domestic carbon price, and its products are not CBAM-covered goods, so there is no border-carbon liability. At the EU ETS reference price (€75/t) the emissions carry an indicative carbon value of €43.9M/yr.
Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.
Capacity vs largest petrochemical plants in Japan
Listed capacity (t of ethylene), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Local climate
Idemitsu Kosan Chiba, Chiba sits in a humid subtropical climate zone (Köppen Cfa), at 35.5°N in the northern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1348 W/m² to ambient — roughly 1.04× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby sites
The #11 largest of 12 petrochemical plants in Japan by listed capacity (Climate TRACE).
Nearby industrial sites
- Idemitsu Kosan Chiba Refinery · Refinery · 1,625,756 t CO₂
- Mitsui Chemicals Chiba, Ichihara, Chiba · Petrochemical · 777,500 t CO₂
- Fuji Oil Sodegaura Refinery · Refinery · 736,584 t CO₂
- Keiyo Ethylene , Ichihara, Chiba · Petrochemical · 970,117 t CO₂
- OIREC Chiba Refinery · Refinery · 1,103,803 t CO₂
- Maruzen Petrochemical, Chiba · Petrochemical · 674,864 t CO₂
Location
Coordinates 35.4863, 140.03635. View on OpenStreetMap.
Frequently asked questions
What type of facility is Idemitsu Kosan Chiba, Chiba?
Idemitsu Kosan Chiba, Chiba is a petrochemical plant in Japan. Petrochemical plants crack hydrocarbons at very high temperatures to produce ethylene, propylene and other building-block chemicals — one of the most heat-intensive industrial processes.
What capacity is listed for Idemitsu Kosan Chiba, Chiba?
The open dataset lists 414,000 t of ethylene of capacity for Idemitsu Kosan Chiba, Chiba.
How much CO₂ does Idemitsu Kosan Chiba, Chiba emit?
The page uses about 582,070 t CO₂e/year from the open dataset It ranks #64 among facilities in Japan by estimated CO₂.
Where is Idemitsu Kosan Chiba, Chiba located?
Idemitsu Kosan Chiba, Chiba is in Japan at approximately 35.4863, 140.03635.