The latest Carbon Performance data for the world’s largest
aluminium companies is now available on the
TPI tool. This update covers 26 aluminium companies.
[1] As of April 2026, these companies represent a combined market capitalisation of over $418 billion.
[2] The
International Energy Agency (IEA) estimates that in 2024, the aluminium sector emitted nearly 251 million tonnes of CO2, accounting for 3% of the world’s direct industrial CO2 emissions.
Our methodology assesses historical and projected greenhouse gas emissions, comparing companies against sector-specific benchmarks to evaluate their alignment with the goals of the Paris Agreement.
In Section 3 of our flagship annual report,
State of the Corporate Transition 2025, we explore how assessed companies in high-emitting sectors align with the Paris Agreement using the Cumulative Benchmark Divergence (CBD) metric. This metric quantifies the cumulative emissions overshoot or undershoot for each sector relative to the Below 2°C or 1.5°C benchmarks over the period from 2020 to 2050. We find that the aluminium sector would overshoot these benchmarks by 97% and 176%, respectively.
Explore the
results of relevant companies now on the
TPI tool.
The aluminium Carbon Performance
methodology note can be found
here.
The TPI Global Climate Transition Centre (TPI Centre) is the academic partner of the Transition Pathway Initiative (TPI), a global investor-led initiative supported by over 155 asset owners and asset managers. Based at the London School of Economics and Political Science, it is an independent and authoritative source of research and data on the progress being made by corporate and sovereign entities in the transition to a low-carbon economy.
For any questions related to the Carbon Performance data or methodology, please email:
tpi.centre@lse.ac.uk.
[1] These assessments cover TPI companies outside the
Climate Action 100+ (CA100+) universe, allowing an earlier publication of results. This ensures investors have up-to-date data well ahead of the typical Q4 publication of CA100+ company assessments.
[2] Market capitalisation coverage is calculated for the companies for which this sector represents their primary activity. The calculation can change due to fluctuating corporate valuations, the size of the company universe assessed, or due to company sectoral reclassifications.
Photo credit: Mika Baumeister on Unsplash
