7210.49.00.40 - “Advanced” or “ultra” of a kind described in statistical note 4 to this chapter

This HTS category, 7210.49.00.40, specifically designates flat-rolled products of iron or nonalloy steel that are clad, plated, or coated with zinc, and possess high strength characteristics. The key defining feature of this subheading is the inclusion of "advanced" or "ultra" high-strength steels as outlined in statistical note 4 to Chapter 72. These materials typically exhibit superior mechanical properties such as exceptionally high tensile strength and yield strength, often achieved through specialized manufacturing processes and alloying elements, exceeding the capabilities of standard high-strength steels.

Within the broader classification of "Other" high-strength steel products plated or coated with zinc, this specific subheading is distinguished by its requirement for the steel to meet the advanced or ultra high-strength criteria referenced in statistical note 4. While its sibling category, 7210.49.00.45 "Other," encompasses other high-strength steel products that do not meet these specialized advanced or ultra designations, this category is reserved for those with demonstrably enhanced performance characteristics.

As this is a leaf node in the HTS, there are no further subcategories. Therefore, classification into 7210.49.00.40 relies entirely on meeting the stringent requirements for advanced or ultra high-strength steel content, in addition to the general criteria for zinc-plated or coated flat-rolled products of iron or nonalloy steel with a width of 600 mm or more. Importers and exporters should consult statistical note 4 to Chapter 72 for detailed technical specifications to ensure accurate classification.