5404.19.80.40 - Of polyesters

This HTS subcategory, 5404.19.80.40, specifically classifies synthetic monofilaments that are composed of polyesters. These monofilaments must have a decitex of 67 or greater, and their cross-sectional dimensions cannot exceed 1 millimeter. This category also encompasses strips and similar materials, such as artificial straw, made from synthetic textile materials, provided their apparent width does not exceed 5 millimeters. The defining characteristic for classification under this code is the material composition being polyester.

This classification is distinct from its sibling categories by its specific material requirement. The sibling category 5404.19.80.20 covers similar monofilaments and strips, but exclusively those made of nylon or other polyamides. Therefore, to correctly classify a synthetic monofilament or strip under 5404.19.80.40, the importer or exporter must confirm that the material is polyester and not nylon or polyamide. The sibling category 5404.19.80.80 serves as a residual category for other synthetic materials not falling under the polyester or nylon/polyamide designations.

As 5404.19.80.40 represents a leaf node in the HTS classification structure, there are no further subcategories to introduce. Classification decisions at this level rely on precise adherence to the defined physical characteristics (decitex, cross-sectional dimension, width) and the specified material composition (polyester). Examples of goods that would fall under this classification include polyester sewing threads of sufficient decitex, fishing lines made of polyester monofilament, or decorative artificial straw made from polyester.