High-purity silk content—at least 85% by weight of silk or silk waste other than noil—defines this heading, covering the premium end of woven silk fabric trade: charmeuse, crepe de chine, habotai, and similar constructions used in luxury apparel and accessories. The explicit exclusion of noil silk separates these goods from the matte, textured noil category, keeping this heading focused on filament-based and schappe-based fabrics with the characteristic luster associated with fine silk. Pile, chenille, and narrow fabrics are excluded. Given the value density of these goods, accurate fiber content certification and country-of-origin documentation are particularly important for customs valuation and classification.

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