4411.12.10.00 - Not mechanically worked or surface covered

This HTS category, 4411.12.10.00, specifically classifies medium density fiberboard (MDF) that has a thickness not exceeding 5 mm and has not been mechanically worked or surface-covered. This means the material is in its raw state after production, without any sanding, polishing, lamination, painting, or other surface treatments. The classification is focused on the physical form and initial processing state of the MDF.

To distinguish this category from its sibling, "Other" (which would encompass MDF of a thickness not exceeding 5 mm that *has* been mechanically worked or surface-covered), the key differentiating factor is the absence of any further manipulation beyond its initial manufacturing. This implies that any MDF within this subcategory will have the characteristic texture and appearance of freshly manufactured fiberboard, lacking any enhancements or alterations to its surface or form.

As this is a leaf node, there are no further subcategories under 4411.12.10.00. This means that all products meeting the criteria of medium density fiberboard, with a thickness not exceeding 5 mm, and without mechanical working or surface covering, will be classified here. Examples of typical uses might include basic paneling applications where subsequent finishing will be performed by the importer, or as raw material for further fabrication.