5205.23.00.20 - Ring spun (301)

This HTS category specifically covers single yarns of combed cotton fibers, where the yarn's fineness falls within a precise range. The yarn must contain 85 percent or more by weight of cotton and is intended for industrial or manufacturing purposes, not for direct sale to consumers. The defining characteristic of this subcategory is its yarn count, specifically exceeding 43 nanometers (nm) but not exceeding 52 nm. This fineness is a critical determinant for classification, impacting the yarn's suitability for various textile applications.

Within this classification level, the distinction lies in the manufacturing method. This category is for "Ring spun" yarns, a common and well-established spinning technique that imparts strength and uniformity to the yarn. It is differentiated from its sibling category, 5205.23.00.90 ("Other"), which would encompass single yarns of combed cotton fibers within the same nm range but produced by spinning methods other than ring spinning.

As this is a leaf node in the HTS classification structure, there are no further subcategories. Therefore, the classification is definitive based on the material (cotton), yarn type (single), fiber preparation (combed), spinning method (ring spun), and the specific yarn count range (exceeding 43 nm but not exceeding 52 nm). Importers and exporters should ensure their documentation accurately reflects these precise specifications to facilitate correct customs clearance.