5006.00 - Silk yarn and yarn spun from silk waste, put up for retail sale; silkworm gut:

This HTS category, 5006.00, specifically addresses silk yarns intended for retail sale, as well as yarn spun from silk waste that is also presented for retail. Additionally, it encompasses silkworm gut, a natural material often utilized in specialized applications. The defining characteristic for inclusion here is the direct preparation and packaging of these materials for consumer purchase or their specific form as silkworm gut.

Unlike its sibling categories within Chapter 50, which might cover raw silk, silk cocoons, or silk waste in a more raw or unprocessed state, 5006.00 focuses on transformed silk products ready for market or the specific commodity of silkworm gut. This distinction is crucial for import and export, ensuring that finished or semi-finished retail-ready goods are correctly identified and taxed.

Within this category, further subclassification is provided to refine the classification based on silk content. The subcategory 5006.00.10.00 is designated for yarns containing 85 percent or more by weight of silk or silk waste, offering a precise breakdown for these predominantly silk-based products. The residual category, 5006.00.90.00, covers all other yarns and silkworm gut not meeting the stringent silk percentage requirement of the preceding subheading.