HS Code 76.03 – Aluminium; powders and flakes

HS code 7603 is a 4-digit heading in the Harmonized System that covers: Aluminium; powders and flakes. HS Code 7603 covers 'Aluminium; powders and flakes,' representing a category of finely divided aluminium products with a wide array of specialized industrial applications. This heading encompasses both non-agglomerated and agglomerated powders, as well as lamellar (flake-like) forms. The scope is defined by particle size and shape, typically differentiating these products from granular forms (which might fall under 7601 if considered primary aluminium in granular form) or larger semi-finished products. Key sub-categories include atomized powders, used in metallurgy, additive manufacturing (3D printing), and as a reducing agent; and aluminium flakes or pigments, widely utilized in paints, coatings, printing inks, and pyrotechnics for their metallic luster and reflective properties. Accurate classification is crucial for trade compliance due to the high-value, specialized nature of these products and potential dual-use concerns (e.g., in explosives or propellants). Tariffs and regulations can vary significantly based on purity, particle size, and intended application. Historically, the development of aluminium powder technologies has been integral to advancements in various high-tech industries. This heading fits within Chapter 76 by representing a processed form of aluminium, derived from primary aluminium (7601) or scrap (7602), that serves as a raw material for further manufacturing into advanced materials and finished goods, highlighting aluminium's versatility beyond its bulk forms. Its classification is critical for industries ranging from automotive and aerospace to electronics and defense.

Aluminium powder for 3D printing, aluminium pigment for automotive paints, aluminium flakes for metallic coatings, pyrotechnic aluminium powder, atomized aluminium powder, sintered aluminium powder, lamellar aluminium flakes, aluminium powder for cold spray, aluminium powder for thermite reactions, aluminium powder for solid rocket propellants, aluminium powder for solar paste, aluminium powder for abrasive applications, aluminium powder for anti-corrosion coatings, spherical aluminium powder, irregular aluminium powder, ultrafine aluminium powder, nano aluminium powder, aluminium powder for chemical reagents, aluminium powder for cermets, aluminium powder for metal matrix composites, aluminium powder for welding electrodes, aluminium powder for lightweight concrete, aluminium powder for explosives, aluminium powder for reflective materials

Misclassification under HS 7603 often arises from confusion with other finely divided aluminium forms or non-aluminium powders. One common mistake is classifying very fine granular aluminium (if not specifically powder or flake) under 7601 (unwrought aluminium), which typically covers ingots, billets, and primary granules. The distinction lies in the manufacturing process (atomization, milling for powder/flakes vs. casting, granulation for unwrought) and particle characteristics. Another error is confusing aluminium powder with other metal powders, such as iron powder (7205) or copper powder (7406), which have different tariff rates and regulations. Traders must pay close attention to the exact physical form (powder, flake) and particle size to ensure accurate classification, as the specific use of these materials can also influence their perceived classification.

In 2025, the top exporters of HS code 7603 in UN Comtrade data were Germany ($90M, 13% of world exports), the United States ($89M) and Malaysia ($71M). World exports came to about $669M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

In 2025, the top importers of HS code 7603 in UN Comtrade data were Germany ($123M, 19% of world imports), the United States ($84M) and Malaysia ($57M). World imports came to about $639M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

HS code 7603 is a 4-digit heading under Chapter 76 of the Harmonized System. The first 2 digits (76) identify the chapter, and digits 3-4 (03) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.