Kuala Tanjung aluminium plant — Indonesia
Aluminium Smelter in Indonesia. Approximate location 3.35034, 99.4546.
Aluminium SmelterIndonesiaCO₂ estimate (modelled)
Kuala Tanjung aluminium plant is an aluminium smelter in Indonesia. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment. It is operated by PT Indonesia Asahan Aluminium. It emits about 580,039 t CO₂e a year from Climate TRACE. That is 0.80% of the CO₂e from the 53 facilities in Indonesia that have an emissions figure in IndustryAtlas.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3673069.
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
- Lamerd City aluminium plant · 580,039 t CO₂e/yr · Iran
- Jharsuguda District · 580,273 t CO₂e/yr · India
- Kwinana Town · 580,845 t CO₂e/yr · Australia
- Karmoy aluminium plant · 583,940 t CO₂e/yr · Norway
- Portland aluminium plant · 574,610 t CO₂e/yr · Australia
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Kuala Tanjung Inalum captive power station · Coal · 950 MW · 0 km
- Kuala Tanjung-2 power station · Coal · 450 MW · 3 km
- Lamhotma power station · Coal · 200 MW · 3 km
- Kuala Tanjung-1 power station · Coal · 270 MW · 5 km
- Batubara power station · Gas · 4,800 MW · 9 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
Subsector: aluminum. As aluminium smelter, it requires high process heat (typically 600–900°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 580,039 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 580k t CO₂e/yr (Scope 1), Kuala Tanjung aluminium plant carries no domestic carbon price — and as a CBAM-covered product, its 580k t at the EU CBAM rate (€75/t) is €43.7M/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.
Operator
Operated by PT Indonesia Asahan Aluminium.
Local climate
Kuala Tanjung aluminium plant sits in a tropical rainforest climate zone (Köppen Af), at 3.4°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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1242 W/m² to ambient — roughly 0.95× 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
Nearby industrial sites
- P.T. Toba Pulp Lestari Tbk · Pulp & Paper Mill · 105,161 t CO₂
Location
Coordinates 3.35034, 99.4546. View on OpenStreetMap.
Frequently asked questions
What type of facility is Kuala Tanjung aluminium plant?
Kuala Tanjung aluminium plant is a aluminium smelter in Indonesia. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment.
How much CO₂ does Kuala Tanjung aluminium plant emit?
The page uses about 580,039 t CO₂e/year from the open dataset It ranks #36 among facilities in Indonesia by estimated CO₂.
Where is Kuala Tanjung aluminium plant located?
Kuala Tanjung aluminium plant is in Indonesia at approximately 3.35034, 99.4546.
Who operates Kuala Tanjung aluminium plant?
The operator recorded in the open dataset is PT Indonesia Asahan Aluminium.