Tariff classification turned on whether the goods were a feed preparation or a separate chemically defined compound.

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....Classification of B-Traxim 2C Mn-220 turned on whether it met Chapter 29's threshold for a separate chemically defined organic compound. The product failed that test because the technical material showed variable composition, different amino-acid ligands and fluctuating molecular parameters, so it was excluded from heading 2922. It was then placed in Heading 2309 because it was engineered, presented and used as a feed-use preparation, with the literature showing premix application and use in animal nutrition. The goods were therefore classifiable under CTI 23099090 as preparations of a kind used in animal feeding.....