UMC Metals Chon Buri plant — Thailand
Steel Plant in Thailand. Approximate location 13.27568, 100.97054.
Steel PlantThailandCO₂ estimate (modelled)
UMC Metals Chon Buri plant is a steel plant in Thailand. Its listed capacity is 805,000 t of steel. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels. It is operated by UMC Metals Ltd. By capacity it ranks #2 among 3 steel plants in Thailand. It emits about 30,501 t CO₂e a year from Climate TRACE. That is 0.06% of the CO₂e from the 37 facilities in Thailand that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 96% below the national median for this sector.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1567062.
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
- Millcon Steel Rayong plant · 30,312 t CO₂e/yr · Thailand
- Simec Pindamonhangaba steel plant · 30,762 t CO₂e/yr · Brazil
- CMC Tennessee steel plant · 30,193 t CO₂e/yr · United States
- Sidenor Steel Industry Thessaloniki plant · 30,001 t CO₂e/yr · Greece
- Ternium Apodaca steel plant · 29,740 t CO₂e/yr · Mexico
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Sriracha Thai Oil Company power station · Gas · 239 MW · 14 km
- Amata B Grimm · Gas · 675 MW · 17 km
- Sriracha · Gas · 700 MW · 19 km
- Saha Patana · Gas · 203 MW · 20 km
- Laem Chabang · Gas · 196 MW · 22 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
At 805,000 t of steel, UMC Metals Chon Buri plant is around the median steel plant in Thailand (805,000 t of steel). Subsector: iron-and-steel. As steel plant, it requires high process heat (typically 800–1500°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 30,501 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 31k t CO₂e/yr (Scope 1), UMC Metals Chon Buri plant carries no domestic carbon price — and as a CBAM-covered product, its 31k t at the EU CBAM rate (€75/t) is €2.3M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).
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 steel plants in Thailand
Listed capacity (t of steel), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Operator
Operated by UMC Metals Ltd.
Local climate
UMC Metals Chon Buri plant sits in a tropical savanna climate zone (Köppen Aw), at 13.3°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 1218 W/m² to ambient — roughly 0.94× 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 #2 largest of 3 steel plants in Thailand by listed capacity (Climate TRACE).
Nearby industrial sites
- Bangchak Sriracha Refinery · Refinery · 1,704,227 t CO₂
- Thai Oil Company Sriracha Refinery · Refinery · 2,693,462 t CO₂
- Nippon GJS steel plant · Steel Plant · 126,315 t CO₂
- Tata Steel Manufacturing NTS Plant · Steel Plant · 30,312 t CO₂
- TY Steel Rayong Steel Plant · Steel Plant
- Millcon Steel Rayong plant · Steel Plant · 30,312 t CO₂
Location
Coordinates 13.27568, 100.97054. View on OpenStreetMap.
Frequently asked questions
What type of facility is UMC Metals Chon Buri plant?
UMC Metals Chon Buri plant is a steel plant in Thailand. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels.
What capacity is listed for UMC Metals Chon Buri plant?
The open dataset lists 805,000 t of steel of capacity for UMC Metals Chon Buri plant.
How much CO₂ does UMC Metals Chon Buri plant emit?
The page uses about 30,501 t CO₂e/year from the open dataset It ranks #32 among facilities in Thailand by estimated CO₂.
Where is UMC Metals Chon Buri plant located?
UMC Metals Chon Buri plant is in Thailand at approximately 13.27568, 100.97054.
Who operates UMC Metals Chon Buri plant?
The operator recorded in the open dataset is UMC Metals Ltd.