Aluminium Poised to Support Low-Carbon Future, Support Energy Transition

Why It Matters

The announcement underscores aluminium’s pivotal role in decarbonising key industries and demonstrates how policy‑backed energy pricing can accelerate sustainable mining in emerging markets, boosting South Africa’s industrial base and job creation.

Key Takeaways

• Aluminium deemed “green metal” for transport, construction, energy transition.
• South32 receives special Eskom tariff, supporting Hillside smelter sustainability.
• Company targets 50% emissions cut by 2035, net‑zero by 2050.
• Downstream capacity to rise from 110k to 240k tonnes annually.
• R23 billion local procurement creates jobs, boosts South African suppliers.

Pulse Analysis

Aluminium’s reputation as the "green metal" stems from its high strength‑to‑weight ratio and infinite recyclability, traits that make it indispensable for sectors ranging from automotive to renewable‑energy infrastructure. As nations tighten emissions standards, demand for low‑carbon materials is surging, positioning South Africa—home to one of the world’s few integrated smelting operations—to capture a growing share of the market. The country’s strategic designation of aluminium aligns with global supply‑chain shifts toward lighter, more energy‑efficient products.

South32’s Hillside smelter illustrates how targeted policy can bridge the gap between heavy‑industry emissions and climate goals. A special electricity tariff secured in 2021, extended to 2031, lowers operational costs while the firm collaborates with Eskom to inject renewable power into the grid. By pledging a 50% emissions reduction by 2035 and net‑zero by 2050, South32 is betting on technology upgrades and cleaner energy to offset the coal‑intensive legacy that currently drives 60% of its emissions. This partnership model offers a template for other resource‑rich economies seeking to decarbonise legacy assets.

Beyond the smelter, South32 is driving downstream beneficiation, planning to more than double aluminium output to 240,000 t/yr and supporting local producers such as Bingelela Alloys. Substantial R23 billion spent on South African suppliers—nearly R9 billion with black‑owned firms—has generated thousands of jobs and expanded the domestic value chain. Social‑investment programmes reaching over five million people further embed the industry in community development. As the global energy transition accelerates, these integrated initiatives position South Africa as a competitive, low‑carbon aluminium hub.