U.S. imports of Other Nonferrous Metal Foundries (Except Die-Casting) (NAICS 331529) totaled $572K in August 2026, imported from 21 countries.
Importers of Other Nonferrous Metal Foundries (Except Die-Casting) paid $62K in duties in August 2026, an average duty rate of 10.80% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Other Nonferrous Metal Foundries (Except Die-Casting) imports of $572K in August 2026 ran 26% below the year-to-date monthly average of $768K.
Last updated: August 2026 dataSand casting, permanent mold casting, investment casting, and centrifugal casting of nonferrous metals other than by high-pressure die casting fall under NAICS 331529, producing components in bronze, brass, aluminum, magnesium, and specialty alloys for marine, plumbing, pump, valve, and aerospace applications. Bronze and brass castings — copper-tin and copper-zinc alloys respectively — are particularly prominent in this segment, serving corrosion-resistant applications in marine hardware, water works fittings, and industrial valves. The diversity of casting methods and alloys in this segment means that HTS classification of imported parts requires careful attention to both metal composition and article function.
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40 import shipments a month
Both bronze (copper-tin base) and brass (copper-zinc base) castings are classified as copper alloy articles under HTS Chapter 74, but the specific subheading depends on the alloy composition and the article's form or function. Importers should obtain a certified alloy analysis (showing copper, tin, zinc, and other element percentages) from the foundry, as the copper content threshold and alloying elements determine the correct HTS provision and whether any antidumping or countervailing duty orders on copper alloy products apply.
While the casting method (sand, permanent mold, investment) does not typically change HTS classification, it is relevant for buyer qualification and country-of-origin verification. Foundry process records — including mold type, pour temperature logs, and heat treatment records — support ASTM or EN material certifications and demonstrate that the casting was produced (not merely machined or finished) in the declared country of origin, which matters when trade-remedy orders are in scope.
National industry 2 of 2 in naics industry 33152
National industry 331529 · $572K of $8.9M
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Imports · August 2026
origin
Australia and Italy together supply 87% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3315 for those.
entry
Census does not publish port detail for this classification system.
Imports
Imports
$572KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $9.7M of Other Nonferrous Metal Foundries (Except Die-Casting).
Through August 2026. Source: U.S. Census Bureau.