5006.00.90.00 - Other (800)

This HTS category, 5006.00.90.00, encompasses silkworm gut and silk yarn or yarn spun from silk waste that are *not* primarily composed of silk or silk waste by weight. Specifically, it covers products where the silk content, either raw silk or waste, constitutes less than 85 percent by weight. This classification applies to such yarns and silkworm gut when they are put up for retail sale, meaning they are packaged and presented for direct purchase by consumers.

The key differentiator for this classification lies in its residual nature compared to its sibling category, 5006.00.10.00. The sibling category specifically addresses silk yarn and silkworm gut containing 85 percent or more by weight of silk or silk waste. Therefore, 5006.00.90.00 serves as the catch-all for eligible silk-related products when the silk content falls below that 85 percent threshold.

As this is a leaf node, there are no further subcategories. Classification within this code relies on the careful determination of the material composition and the presentation of the goods for retail sale. Examples of goods that might fall here include mixed fiber yarns incorporating a significant proportion of non-silk materials, or silkworm gut products with substantial non-silk additives, all presented in retail packaging.