0402.91 - Not containing added sugar or other sweetening matter:

This HTS category, 0402.91, encompasses milk and cream that are concentrated or contain added sugar or other sweetening matter, but specifically *excluding* those with added sugar or sweetening matter. This distinction is crucial for accurate classification. The "Other" designation at this level indicates that these products do not fit into more specific subheadings within 0402 that might detail particular forms or preparations.

The key differentiator between 0402.91 and its sibling, 0402.99, lies in the absence of added sugar or sweetening matter in the former. While both fall under "Other" concentrated milk and cream, 0402.99 covers products that *do* contain added sugar or sweetening matter. Therefore, for classification purposes, it is essential to determine the presence or absence of these sweetening agents.

Within this category, further subdivisions exist to refine classification based on specific entry provisions. These subcategories address goods that might be subject to special rules or requirements, such as those described in general note 15 or additional U.S. note 11 to chapter 4, or a residual "Other" category for products not meeting those specific provisions. These further distinctions help ensure compliance with various trade regulations and tariff treatments.