Section 232 tariffs apply to aluminum articles imported into the United States, and the scope covers a wide range of products within this sector — from unwrought aluminum to fabricated forms. Importers should verify whether specific product forms qualify for any country-level exclusions or quota arrangements, as these vary by origin and product type.

Primary aluminum is produced directly from alumina through electrolytic smelting, while secondary aluminum is recovered and re-smelted from scrap. This distinction matters for HTS classification, duty treatment, and supply-chain documentation, as secondary material may require additional certification of scrap origin and composition.