2309.90.28.10 - Milk replacer

This HTS subheading, 2309.90.28.10, specifically classifies "Milk replacer" intended for animal feeding. These products are formulated to substitute for whole milk or milk-based feeds for young animals, such as calves, piglets, or poultry. They are characterized by their composition, which typically includes a high proportion of milk solids, often exceeding 10% by weight, along with other nutrients and additives to ensure proper growth and development. The primary purpose is to provide a cost-effective and nutritionally complete alternative to natural milk for weaned or orphaned animals.

This classification is distinct from its sibling category, 2309.90.28.90, which covers "Other" animal feeds containing milk or milk derivatives where the milk solids content is not specified or falls below a certain threshold. Subheading 2309.90.28.10 applies exclusively to those preparations where the milk solids constitute a significant portion of the product, indicating a deliberate formulation for milk-replacement purposes.

As this is a leaf node in the HTS structure, there are no further subcategories. The classification is precise and does not allow for further subdivision. Therefore, the determining factor for classification under 2309.90.28.10 hinges on confirming the product's identity as a milk replacer and verifying that it contains over 10 percent by weight of milk solids. Examples would include commercial calf milk replacers, piglet milk formulas, and similar feed preparations designed to mimic the nutritional profile of milk.