A structural transformation is underway in aluminum pricing, driven by the emergence of distinct green premiums and the implementation of the EU's Carbon Border Adjustment Mechanism (CBAM). Low-carbon aluminum — produced using hydro or renewable power with Scope 1 and 2 emissions below 4 tonnes CO2 per tonne of aluminum — now commands premiums of $50-150/t over standard LME pricing, and this gap is expected to widen as CBAM takes full effect.
CBAM, which began its transitional phase in late 2025 and is moving toward full implementation in 2026, requires importers of aluminum into the EU to purchase certificates equivalent to the carbon price that would have been paid if the goods were produced under EU carbon pricing rules. This directly increases the cost of high-carbon aluminum imports from China, India, and other coal-powered producers.
Corporate decarbonization commitments are accelerating the shift. Major automakers, packaging companies, and construction firms have set targets for low-carbon aluminum content in their supply chains. This demand is creating a growing premium for certified green metal that exists independently of LME price movements.
The US market has evolved differently, with 50% tariffs creating an extreme premium environment. All-in US prices above $5,200/t reflect tariff costs rather than decarbonization. However, the Biden-era Inflation Reduction Act provisions and growing corporate ESG requirements are beginning to drive green premium differentiation in the US market as well.
Producers are responding. Middle East smelters with low-cost gas power are marketing their output as low-carbon. Hydro-powered producers in Canada, Iceland, and Norway command the highest premiums. Chinese producers face the steepest CBAM cost exposure, with coal-powered smelters potentially facing carbon costs of $200-400/t of aluminum under full CBAM implementation.
The aluminum market is splitting into green and conventional tiers. European buyers must urgently qualify suppliers for CBAM compliance — non-compliant metal will face increasing cost penalties. US buyers should monitor CBAM developments as potential future policy direction. For long-term contracts, include a green premium formula tied to independently verified emissions data. Procurement teams should build a multi-source strategy that includes at least one low-carbon supplier to maintain flexibility as regulatory and customer requirements evolve.