Alumina/Bauxite/Aluminium

• Complete view of emissions associated with the production of primary bauxite, alumina and aluminium, covering close to 100% of global primary production
• Data presented from a refinery viewpoint (alumina) and a smelter viewpoint (aluminium)
• Like for like comparison of assets through carefully defined supply chain system boundaries
• Allocation of emissions according to equity ownership of smelter or refinery and the upstream emissions from mining and refining related to that asset
• Includes emissions for minority shareholdings which are often excluded from company sustainability reports

Emission data is presented as total tonnes of CO₂e and emissions intensity, expressed as tonnes of CO₂e per tonne of alumina or aluminium

We incorporate upstream emissions from mining and refining in our E₁ metric.

Our Alumina/Bauxite and Aluminium research defines E₀ and E₁ emissions as follows:

E₀: Scope 1 and 2 emissions relating to a mine, refinery or smelter site.

E₁: E₀ plus Scope 3 emissions from transport; mine to refinery and from refinery to smelter.