Unwrought Copper-Zinc Alloys (Brass)

Unwrought brass — copper-zinc base alloys in primary forms such as ingots, billets, and slabs — enters the US under a single 10-digit line, 7403210000, and is a foundational feedstock for the plumbing fittings, electrical components, and precision machined parts industries. Imports are subject to Section 232 tariffs on certain origins, making supplier selection and certificate-of-origin documentation a routine compliance concern. Canada leads supply to the US market, followed by Italy, Spain, Germany, and Switzerland — a supplier profile reflecting both USMCA-eligible and European sources.