7409.90.10.30 - Of beryllium copper

This classification covers plates, sheets, and strip of copper alloys, specifically those with a thickness of 5 millimeters or more, and which are composed of beryllium copper. Beryllium copper is a unique alloy known for its high strength, electrical conductivity, and non-sparking properties, making it suitable for specialized industrial applications. The primary defining characteristics for this sub-category are the material composition (beryllium copper alloy) and the substantial thickness of the product.

Within the broader category of "Copper plates, sheets and strip, of a thickness exceeding 0.15 mm," this specific node distinguishes itself by focusing on "Of other copper alloys" and further narrowing the scope to those with "a thickness of 5 mm or more." While other copper alloys exist, this classification is exclusively for those containing beryllium. It is crucial to differentiate this from the sibling category 7409.90.10.60, "Other," which would encompass plates, sheets, and strip of other copper alloys meeting the thickness requirement but not specifically of beryllium copper.

As this is a leaf node in the HTS classification system, there are no further subcategories. Therefore, the classification is finalized at this point based on the material (beryllium copper) and the specified thickness (5 mm or more). Importers and exporters should carefully verify the exact alloy composition and the physical dimensions to ensure accurate classification within this specific HTS code.