5515.99 - Other:

This HTS category, 5515.99, encompasses other woven fabrics manufactured from synthetic staple fibers. It specifically covers fabrics where the synthetic staple fibers are not the sole component, nor are they predominantly blended with man-made filaments. The key characteristic for inclusion here is the presence of synthetic staple fibers as a primary component, but in combinations not specified elsewhere within the broader 5515 heading.

Distinguishing this category from its sibling, 5515.91, is crucial. While 5515.91.00 exclusively covers woven fabrics of synthetic staple fibers mixed mainly or solely with man-made filaments, 5515.99 addresses blends where other fibers, such as cotton, regenerated cellulose staple fibers, or even small proportions of natural animal hair (but not predominantly wool or fine animal hair), are present alongside the synthetic staple fibers.

Further subdivision is provided by the subcategories. The category "Mixed mainly or solely with wool or fine animal hair" (which would lead to a specific sub-code) distinguishes fabrics with a significant wool or fine animal hair content. The residual classification, 5515.99.90, then captures all remaining woven fabrics of synthetic staple fibers that do not fit into the previously mentioned specific blends, effectively serving as a catch-all for other compositions.