Produced by atomization, electrolysis, or mechanical reduction, copper powders and flakes serve as inputs for powder metallurgy parts, conductive inks and pastes, diamond tooling, and chemical catalysts — each application demanding distinct particle size distribution, morphology, and surface chemistry. Particle shape (spherical atomized vs. dendritic electrolytic vs. lamellar flake) is the primary specification variable that determines suitability for a given end use and can also influence classification at more detailed tariff levels. The electronics and additive manufacturing sectors have driven growing demand for ultra-fine and high-purity copper powder, making this a technically specialized import category. Importers should document particle size (D50, D90) and apparent density on commercial invoices to support classification and buyer acceptance testing.

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