9902.13.43 - Polyethylene Terephthalate (PET) heat exchange capillary material consisting of parallel PET tubes arranged and secured in a knitted fabric of PET threads (provided for in subheading 6003.30.60)

HTS Code 9902.13.43 classifies specific Polyethylene Terephthalate (PET) heat exchange capillary material. This material is characterized by its construction: parallel PET tubes meticulously arranged and secured within a knitted fabric also composed of PET threads. This particular configuration is specifically intended for heat exchange applications and is provided for under subheading 6003.30.60, indicating its linkage to knitted fabrics of synthetic fibers.

This classification is found within Chapter 99 of the Harmonized Tariff Schedule, which encompasses temporary legislation and special provisions. Unlike the foundational categories of live animals found at the beginning of Chapter 01, HTS 9902.13.43 deals with manufactured goods subject to specific temporary trade measures. The key differentiator from other temporary provisions is the precise nature of the PET capillary material described, focusing on its specialized structure and intended use in heat exchange systems.

As a leaf node, HTS Code 9902.13.43 has no further subdivisions. Classification at this level is definitive for this specific PET capillary material. Its distinct physical construction, comprising parallel PET tubes within a PET knitted fabric, serves as the primary criterion for its identification and import/export processing under this special tariff provision.