5006.00.10.00 - Containing 85 percent or more by weight of silk or silk waste

This HTS subcategory, 5006.00.10.00, specifically classifies yarn composed of 85 percent or more by weight of pure silk or silk waste. This includes yarns that have undergone processes like spinning, doubling, or twisting, as long as their silk content meets this high threshold. The crucial determining factor for classification under this heading is the quantitative analysis of the silk fiber present.

This heading is distinct from its sibling category, 5006.00.90.00, which serves as a residual classification for "Other" yarns within Chapter 50 that do not meet the 85% silk content requirement. Therefore, if a yarn is predominantly made of silk but contains a significant proportion of other fibers, it would fall under the "Other" category. This distinction ensures precise classification based on the primary material composition.

As this node is a leaf node in the HTS classification, there are no further subcategories. Classification under 5006.00.10.00 is final once the 85% silk content criterion is met. Examples of goods that would be classified here include fine silk knitting yarns, embroidery threads with a very high silk percentage, and spun silk yarns intended for weaving, provided they are presented for retail sale and meet the specified silk weight.