5408.21.00.30 - Weighing not more than 170 g/m² (618)

This HTS classification pertains to woven fabrics composed of artificial filament yarn, specifically those that are unbleached or bleached. A key characteristic defining this category is that the fabric must weigh no more than 170 grams per square meter. These fabrics are derived from artificial filaments, which are continuous strands manufactured from man-made materials, and are woven into a textile structure. Examples include certain types of satin, taffeta, or plain weave fabrics made from rayon or other artificial filaments, intended for various textile applications where a lighter weight fabric is required.

The primary distinction for this subcategory lies in its weight specification. It is differentiated from its sibling category, 5408.21.00.60, by the criterion of fabric weight. While both categories cover woven fabrics of artificial filament yarn, unbleached or bleached, and containing 85 percent or more by weight of artificial filament or strip, this subcategory specifically encompasses those fabrics weighing *not more than* 170 g/m². Conversely, the sibling category covers fabrics that weigh *more than* 170 g/m². This weight threshold is a critical factor for accurate classification and duty assessment.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. The classification ends at this level, meaning that once a woven fabric of artificial filament yarn meets the criteria of being unbleached or bleached, containing 85 percent or more by weight of artificial filament or strip, and weighing not more than 170 g/m², it is definitively classified under HTS code 5408.21.00.30. Therefore, the focus for classification at this point is solely on confirming these specific material composition and weight characteristics.