4403.21.01 - Of pine (Pinus spp.), of which the smallest cross-sectional dimension is 15 cm or more

HTS Code 4403.21.01 specifically classifies rough wood of pine (Pinus spp.) where the smallest cross-sectional dimension measures 15 centimeters or more. This category falls under coniferous woods, intended for further processing or use as structural timber. The defining characteristic is the minimum dimension, indicating a substantial size for timber applications.

This category is distinguished from its siblings by its exclusive focus on pine species and the explicit size requirement. For instance, HTS 4403.22.01, also for pine, covers pieces with a smallest cross-sectional dimension of less than 15 cm, or those not otherwise specified. Similarly, categories 4403.23.01 and 4403.24.01 differentiate based on species (fir and spruce) and size.

Within this HTS code, further subclassification may occur to delineate specific product forms. Subcategories under 4403.21.01 might further specify whether the wood is classified as poles, piles, and posts, or as logs and timber, reflecting their intended end-use and processing. The residual category, "Other," captures any qualifying pine wood that does not fit into these more defined sub-groups.