0101.21.00.10 - Males

This HTS category, 0101.21.00.10, specifically covers male horses that are registered as purebred breeding animals. The "purebred" aspect is crucial here, indicating that these animals must meet the stringent lineage and pedigree requirements of recognized breed registries. This classification is applied when the animal is imported or exported for the express purpose of breeding, and its male sex is a definitive characteristic for this particular subheading.

This category is distinguished from its sibling, 0101.21.00.20, by the sex of the animal. While both fall under purebred breeding animals, this subheading is exclusively for males, whereas the sibling subheading is for females. The intent for breeding applies to both, but the sex of the animal is the differentiating factor at this level of the tariff schedule.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, the classification relies solely on the confirmed status of the animal as a purebred male horse intended for breeding purposes. Importers and exporters should ensure they have documentation from recognized breed associations to substantiate the purebred status and intended use of the animal.