4403.25.01.52 - Other hemlock

This HTS category, "Other hemlock," specifically classifies rough wood, whether or not stripped of bark or sapwood, or roughly squared, which is coniferous, has a smallest cross-sectional dimension of 15 cm or more, and is in the form of logs or timber. The key distinguishing feature is that it pertains to hemlock species *other than* Western hemlock (Tsuga heterophylla).

This classification is distinct from its sibling categories by the species of coniferous wood. For instance, Douglas-fir, Western red cedar, and other named cedars are classified separately. "Other hemlock" is reserved for hemlock species that do not fall under the specific "Western hemlock" designation, often referring to species like Eastern hemlock (Tsuga canadensis) or other less common hemlock varieties.

As this is a leaf node within the HTS, there are no further subcategories. Classification under 4403.25.01.52 relies on accurately identifying the wood as hemlock and confirming it meets the established criteria for rough, coniferous logs or timber of significant dimensions, while excluding the specifically enumerated "Western hemlock."