4412.52 - Other, with at least one outer ply of nonconiferous wood:

This HTS category, 4412.52, specifically covers plywood that is not otherwise classified, where at least one of its outer plies is manufactured from nonconiferous wood. This distinguishes it from sibling categories such as 4412.51, which is reserved for plywood with at least one outer ply of tropical wood, and 4412.59, which is designated for plywood where both outer plies are of coniferous wood. The key criterion for this classification is the material composition of the outer plies, focusing on the exclusion of tropical wood and coniferous wood from this specific subcategory when applicable.

Within this classification, the primary subdivision relates to further categorization of "Other" plywood, indicated by subcategory 4412.52.51.00. This suggests that further distinctions are made based on specific characteristics or types of nonconiferous plywood that do not fall under any preceding or subsequent more specific designations. For instance, this might include plywood with specific core materials, bonding agents, or surface treatments that warrant a separate classification under the broader umbrella of nonconiferous outer ply plywood.