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U.S. imports of other nonferrous metal foundries (except die-casting) (NAICS 331529) totaled $573K in July 2026, traded with 20 countries.
Importers of Other Nonferrous Metal Foundries (Except Die-Casting) paid $51K in duties in July 2026 — an effective duty rate of 10% on $501K in dutiable value, based on actual customs collections rather than the published tariff schedule. Other Nonferrous Metal Foundries (Except Die-Casting) imports of $573K in July 2026 ran 28% below the year-to-date monthly average of $797K.
Last updated: July 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.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
51 shipments/mo
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.
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National industry 2 of 2 in naics industry 33152
National industry 331529 · $573K of $10.0M
NAICSSector 33
ImportsExports
Imports
$573KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Australia and Philippines together supply 70% 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.