5206.43.00.00 - Exceeding 43 nm but not exceeding 52 nm per single yarn (301)

This HTS category, 5206.43.00.00, specifically classifies multiple (folded) or cabled yarns of cotton, made from combed fibers, where the yarn is intended for non-retail sale. The defining characteristic for inclusion in this sub-heading is the linear density of the single yarn component. These yarns are composed of cotton, containing less than 85% cotton by weight, and are characterized by a single yarn having a linear density exceeding 43 but not exceeding 52 nanometers (nm) per single yarn.

This classification is distinguished from its sibling categories by its precise range of single yarn linear density. For instance, it is distinct from 5206.42.00.00, which covers single yarns not exceeding 43 nm, and 5206.44.00.00, which applies to single yarns exceeding 52 nm but not exceeding 80 nm. The focus on combed fibers indicates a higher quality and smoother finish compared to yarns made from carded fibers.

As this HTS code represents a leaf node, there are no further subcategories for this specific classification. Therefore, practical classification relies solely on meeting the criteria of being a multiple or cabled yarn of cotton (less than 85% cotton by weight), derived from combed fibers, and the specific measurement of the single yarn's linear density falling within the 43 nm to 52 nm range, and crucially, not being put up for retail sale. Examples of such products might include industrial sewing threads not packaged for consumers or yarn intended for use in the manufacturing of textiles by other businesses.