5402.20.30.50 - Monofilament; multifilament, untwisted or with twist of less than 5 turns per meter

This HTS subcategory, 5402.20.30.50, specifically classifies high tenacity polyester yarns that are in a single yarn format. The defining characteristic here is the absence of significant twisting; these yarns are either untwisted or have a twist of fewer than 5 turns per meter. This contrasts with other forms of high tenacity polyester yarn that are put up for retail sale or have a more substantial twist. The focus is on the yarn's construction and its potential for industrial applications where strength is paramount, rather than its presentation for direct consumer purchase.

Distinguishing this category from its sibling, 5402.20.30.70, hinges entirely on the degree of twist. While both fall under high tenacity single yarn of polyester, the .50 subheading is reserved for yarns with minimal or no twist (less than 5 turns per meter), whereas the .70 subheading covers those with a twist of 5 turns or more per meter. This distinction is crucial for accurately reflecting the manufacturing process and intended end-use of the yarn, as differing twist levels can affect the yarn's properties and suitability for specific industrial weaving or manufacturing processes.

As this is a leaf node, there are no further subcategories within 5402.20.30.50. Classification at this level requires careful examination of the yarn's decitex (which is established by the parent category "More than 920 decitex"), its fiber content (polyester for high tenacity), and importantly, the absence of significant twist. Examples of goods that would fall here include raw, high-strength polyester yarns intended for tire cord, conveyor belts, or other technical textiles where structural integrity is the primary requirement and the yarn is not yet incorporated into a retail product.