7607.11 - Rolled but not further worked:

This HTS category, 7607.11, specifically covers aluminum foil that has been rolled but not further worked. Crucially, these products are not backed by other materials such as paper, paperboard, or plastics. The defining characteristic for inclusion in this classification is the thickness of the aluminum foil itself, excluding any backing material, which must not exceed 0.2 mm. This category is designed to isolate unbacked aluminum foil with a specific thickness range.

To distinguish this category from its sibling, 7607.19 ("Other"), it is important to note that 7607.11 exclusively pertains to unbacked aluminum foil. The "Other" category would encompass situations where the foil is backed or falls outside the precise thickness parameters implicitly defined by the subcategories. The "Rolled but not further worked" aspect in the parent category emphasizes that no significant post-rolling processes, such as embossing, cutting into specific shapes beyond slitting, or applying coatings beyond basic printing, have occurred.

Within this classification, two subcategories exist to further refine the classification based on thickness. The first subcategory, which is a leaf node, further specifies "Of a thickness not exceeding 0.15 mm." This indicates a more granular breakdown for very thin, unbacked aluminum foil. The second subcategory, 7607.11.90, serves as an "Other" category at this level, capturing unbacked aluminum foil that exceeds 0.15 mm but still falls within the overall 0.2 mm limit defined for 7607.11.