5803.00.90.10 - Containing 85 percent or more by weight of silk or silk waste

This HTS category, 5803.00.90.10, specifically classifies gauze fabrics that are not narrow fabrics (as defined in heading 5806), and are composed of 85 percent or more by weight of silk or silk waste. This designation ensures that imports of silk-based gauze, intended for various textile applications, are correctly identified and duty-assessed. The focus on a high silk content is a key determinant for inclusion in this subcategory, distinguishing it from gauze made from other textile materials.

Within the broader category of gauze not elsewhere specified (5803.00), this particular subcategory differentiates itself from its sibling, 5803.00.90.90, which covers gauze of other textile materials. The critical distinction lies in the predominant fiber content; where 5803.00.90.10 mandates a silk composition of 85% or more, the sibling category accommodates gauze made from a different mix of fibers, or materials other than silk.

As this is a leaf node within the HTS, there are no further subcategories. Classification under 5803.00.90.10 is final once the material composition and the nature of the fabric as gauze (non-narrow) are confirmed. Examples of goods that would fall here include fine woven silk gauze used in medical applications, high-end fashion accessories, or as specialized filtration media where the inherent properties of silk are advantageous.