CBAM and the Green Aluminium Premium: Opportunity for South African Producers

The Green Aluminium Premium: A CBAM Opportunity

While CBAM is primarily discussed as a cost and compliance burden, it also creates a significant commercial opportunity for South African aluminium producers who invest in low-carbon production: the green aluminium premium.

What Is the Green Aluminium Premium?

EU aluminium buyers — particularly in the automotive, packaging, and construction sectors — are under increasing pressure from their own customers and regulators to reduce the carbon footprint of their supply chains. This is creating demand for "green aluminium" with verified low embedded emissions.

The green aluminium premium is the additional price that buyers are willing to pay for aluminium with a lower carbon footprint. This premium has been growing as CBAM makes the carbon cost of aluminium more visible and quantifiable.

Current Market Pricing

As of 2026, the green aluminium premium in EU markets is approximately:

• €50–€150/t for aluminium with verified emissions below 4 tCO₂/t (hydropower-based)
• €20–€50/t for aluminium with verified emissions below 8 tCO₂/t (partial renewable)
• No premium for standard aluminium with emissions above 10 tCO₂/t

Norwegian aluminium producers (Hydro, Alcoa) are commanding the highest premiums due to their hydropower-based production.

The South African Opportunity

South African aluminium producers are currently unable to command a green premium due to their Eskom grid-based production. However, a successful renewable energy transition could change this:

Scenario: South32 Hillside with 60% renewable PPA

• Actual embedded emissions: ~6.0 tCO₂/t (vs. 13.9 tCO₂/t currently)
• CBAM saving vs. default: (12.4 - 6.0) × €65 = €416/t
• Green premium potential: €30–€80/t
• Total commercial benefit: €446–€496/t

At 100,000 tonnes of EU exports, this represents a total commercial benefit of €44.6–€49.6 million per year — transforming CBAM from a cost into a competitive advantage.

The Investment Required

To achieve 60% renewable energy supply for a large aluminium smelter:

• Renewable capacity required: ~60% × 14 MWh/t × 890,000 t/year = ~7,400 GWh/year
• Renewable capacity: ~2,500 MW (wind + solar)
• Estimated PPA cost: R0.65–0.85/kWh (competitive with Eskom tariffs)
• Capital investment: Primarily borne by the renewable energy developer

The key insight is that renewable PPAs in South Africa are now cost-competitive with Eskom tariffs, meaning the renewable energy investment does not increase electricity costs — while delivering significant CBAM savings and green premium revenue.

The Strategic Imperative

South African aluminium producers face a choice:

1. Do nothing: Pay CBAM at default rates, lose EU market share to lower-carbon competitors
2. Invest in renewables: Reduce CBAM costs, command green premium, maintain EU competitiveness

Given the trajectory of EU ETS prices (forecast to reach €80–€100/tCO₂ by 2030), the business case for renewable energy investment strengthens every year. Early movers will have a significant competitive advantage.