The EU Carbon Border Adjustment Mechanism is expanding beyond basic commodities like unwrought aluminium to cover complex downstream manufactured goods by 2028. This shift forces OEMs to trace embedded emissions from every upstream input material, known as precursors, through fragmented multi-tiered global supply chains. The goal is to prevent carbon leakage from being pushed down the value chain as European manufacturers face domestic carbon costs while foreign competitors import finished goods without border adjustments. Under the expanded CBAM, approximately 180 downstream product categories will be captured, with heavy machinery and specialized equipment accounting for 94 percent of targeted goods. This includes motor vehicles, industrial robots, agricultural tractors, and components like chassis, gearboxes, and radiators. The mechanism retroactively taxes the energy-intensive raw materials embedded within final products rather than the assembly process itself, creating a significant data mandate for aluminium-intensive supply chains from bauxite extraction through alumina refining to finished goods.
