Maputo aluminium plant is an aluminium smelter in Mozambique. Its listed capacity is 575,000 t of alumina/aluminum. 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 South32 Ltd. By capacity it ranks #1 among 2 aluminium smelters in Mozambique. It emits about 1,272,345 t CO₂e a year from Climate TRACE. That is 52% of the CO₂e from the 5 facilities in Mozambique that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 6% above the national median for this sector.

575,000t of alumina/aluminum
1,272,345t CO₂e / yr (Climate TRACE)
#1CO₂ rank in Mozambique
2.21t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3673105.

Data status

Known source data

FacilityMaputo aluminium plant Climate TRACE
CountryMozambique Climate TRACE
Coordinates-25.9155, 32.40831 Climate TRACE
Sector / subsectoraluminum Climate TRACE
Reported capacity575,000 t of alumina/aluminum Climate TRACE
Owner / operatorSouth32 Ltd Climate TRACE
Modelled CO₂e1,272,345 t/yr Climate TRACE

Calculated from the dataset

Mozambique rank#1 of 5 · top 20.0% calculated
Global aluminum rank#74 of 257 · top 28.8% calculated
Climate contextderived from coordinates calculated

Not available

Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

At 575,000 t of alumina/aluminum, Maputo aluminium plant is around the median aluminium smelter in Mozambique (575,000 t of alumina/aluminum). 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 1,272,345 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:

17ktanker trucks of gasoline burned
297kgasoline cars driven for a year
380wind turbines running for a year

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Carbon cost and Scope 1 emissions

At its reported 1.3M t CO₂e/yr (Scope 1), Maputo aluminium plant carries no domestic carbon price — and as a CBAM-covered product, its 1.3M t at the EU CBAM rate (€75/t) is €95.9M/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).

1.3M t CO₂e / yrScope 1 emissions
€95.9M/yrCBAM exposure on EU exports

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 aluminium smelters in Mozambique

Maputo aluminium plant: 575,000 t of alumina/aluminum575kMaputo alu…Boane District: 90,444 t of alumina/aluminum90kBoane Dist…

Listed capacity (t of alumina/aluminum), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Local climate

Maputo aluminium plant sits in a hot semi-arid steppe climate zone (Köppen BSh), at 25.9°S in the southern hemisphere.

~23°Ctypical annual mean
~31°Ctypical warm-season
Hot semi-arid steppe: hot summers and mild winters

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.

C5ISO 9223 corrosivity (indicative)
55/100environmental-severity index
7.7°Cseasonal temperature swing
38 kmdistance to coast
Very highCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1280 W/m² to ambient — roughly 0.98× 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 #1 largest of 2 aluminium smelters in Mozambique by listed capacity (Climate TRACE).

Nearby industrial sites

Location

Coordinates -25.9155, 32.40831. View on OpenStreetMap.

Frequently asked questions

What type of facility is Maputo aluminium plant?

Maputo aluminium plant is a aluminium smelter in Mozambique. 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.

What capacity is listed for Maputo aluminium plant?

The open dataset lists 575,000 t of alumina/aluminum of capacity for Maputo aluminium plant.

How much CO₂ does Maputo aluminium plant emit?

The page uses about 1,272,345 t CO₂e/year from the open dataset It ranks #1 among facilities in Mozambique by estimated CO₂.

Where is Maputo aluminium plant located?

Maputo aluminium plant is in Mozambique at approximately -25.9155, 32.40831.

Who operates Maputo aluminium plant?

The operator recorded in the open dataset is South32 Ltd.

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