7210.90.60.00 - Electrolytically coated or plated with base metal

This HTS category, 7210.90.60.00, specifically covers flat-rolled products of iron or nonalloy steel, measuring 600 mm or more in width, which have been clad, plated, or coated with base metal through an electrolytic process. This includes items where the coating is applied via electroplating or electro-deposition of metals like zinc, tin, nickel, or chromium onto the steel substrate. The primary characteristic defining this category is the method of coating; if the base metal coating is applied electrolytically, it falls here.

At this level, the key sibling is 7210.90.90.00, which encompasses "Other" flat-rolled products not specifically covered by the electrolytic coating designation within the broader "Other" category for flat-rolled steel. Therefore, the crucial distinction lies in the application method of the base metal coating. If the coating is applied by any method other than electrolysis, such as hot-dipping or chemical deposition, it would likely be classified under the sibling "Other" category.

As this is a leaf node, there are no further subcategories to introduce. The classification is finalized at this point, provided the goods meet the width, material, and electrolytic coating criteria of HTS 7210.90.60.00. Understanding the precise method of base metal application is paramount for accurate classification within this "Other" subdivision.