3920.63.20.00 - Other

This HTS category, 3920.63.20.00, encompasses "Other" plates, sheets, film, foil, and strip made from noncellular and non-reinforced plastics, which are not laminated, supported, or otherwise combined with other materials. Specifically, it falls under the broader group of polyesters, and within that, it pertains to articles of unsaturated polyesters. The "Other" designation signifies that these items do not fit into more specific sub-classifications within the unsaturated polyesters group.

This classification is distinguished from its sibling category, 3920.63.10.00, which covers "Flexible" plates, sheets, film, foil, and strip of unsaturated polyesters. While both deal with unsaturated polyesters in similar forms, 3920.63.20.00 applies to those items that are not characterized by flexibility. Classification here will hinge on objective assessments of rigidity, stiffness, or other physical properties that differentiate them from flexible materials.

As a leaf node, this category does not have further subdivisions. Therefore, the focus for classification purposes is on the precise material composition (unsaturated polyesters) and the physical form (plates, sheets, film, foil, and strip), while ensuring the exclusion of any reinforcing, laminating, or combining with other materials. Examples would include rigid sheets of unsaturated polyester resin used in construction or manufacturing that do not meet the criteria for flexibility.