4411.12.90 - Other

This HTS category, 4411.12.90, encompasses "Other" medium density fiberboard (MDF) that does not exceed 5 mm in thickness and is not specifically covered by preceding subheadings at this level. Unlike the sibling category 4411.12.60.00, which explicitly excludes surface-covered MDF (except for oil treatment), this classification is for those MDF products that *are* surface covered or treated in a manner not accounted for by other specific descriptions. This typically includes MDF that has undergone treatments beyond simple oiling, such as painting, laminating, veneering, or coating with other protective or decorative substances.

The primary distinction lies in the surface treatment or covering applied. If the MDF is presented in its raw, uncoated state, or has only undergone oil treatment, it would fall under 4411.12.60.00. Conversely, any medium density fiberboard, not exceeding 5 mm in thickness, that features any other form of surface modification or covering falls into this "Other" category.

This category serves as a residual heading for surface-treated MDF within the specific thickness bracket. To further refine classification, two subcategories exist: 4411.12.90.10 for "Standard wood molding" and 4411.12.90.90 for all "Other" applications. The former signifies MDF molded into specific profiles for construction or decorative purposes, while the latter captures any remaining surface-covered MDF not fitting the molding description.