7408.19.00.30 - With a maximum cross-sectional dimension of 3 mm or less

This HTS classification, 7408.19.00.30, specifically identifies copper wire manufactured from refined copper that has a maximum cross-sectional dimension of 3 millimeters or less. This category encompasses various forms of refined copper wire meeting this precise dimensional criterion, such as those used in electrical wiring, electronic components, and manufacturing processes where fine gauge wire is required. The key defining characteristic for inclusion here is the wire's diameter, ensuring it falls within the specified narrow range.

This classification distinguishes itself from its sibling category, 7408.19.00.60, which covers "Other" refined copper wire. While both fall under the broader heading of "Other" refined copper wire, this specific subcategory is defined by its limited cross-sectional dimension (3 mm or less). The sibling category would therefore encompass refined copper wire exceeding this dimensional limit.

As this is a leaf node within the HTS structure, there are no further subcategories. Consequently, the focus for classification within 7408.19.00.30 rests entirely on confirming that the refined copper wire possesses a cross-sectional dimension not exceeding 3 millimeters. Classification decisions for goods falling under this code will rely solely on verifying this physical attribute, in conjunction with the material being refined copper and the product being wire.