5402.20 - High tenacity yarn of polyesters, whether or not textured:

This HTS category encompasses high tenacity yarns specifically manufactured from polyesters. The term "high tenacity" signifies yarns with exceptionally high tensile strength relative to their linear density, making them suitable for demanding applications. This classification includes such polyester yarns whether they have been textured or not. Textured yarns are treated to impart bulk, stretch, or other aesthetic and functional properties.

This category is distinct from its siblings which cover high tenacity yarns of other synthetic fibers, such as nylon or other polyamides. Furthermore, it differentiates itself from categories that focus on non-high tenacity polyester yarns, whether they are textured, single, untwisted, or twisted to varying degrees, or are multiple (folded) or cabled. The defining characteristic here is the combination of polyester material and high tenacity properties.

Within this category, further distinctions are made based on the yarn's construction. The subcategory 5402.20.30 covers single yarns, meaning individual strands of polyester. The subcategory 5402.20.60.00 applies to multiple (folded) or cabled yarns, which are formed by combining two or more single yarns. This subdivision is crucial for differentiating yarn structures and their intended end-uses.