Enzyme-based xylanase animal feed additive with limestone and starch carriers classified as animal feeding preparation, not prepared enzymes.

The dominant issue was whether an enzyme-based animal feed additive containing xylanase with carriers (limestone and starch) should be classified as prepared enzymes under CTH 3507 or as preparations used in animal feeding under CTH 2309. Applying common/commercial parlance, functional utility, and predominant use tests, and relying on SC authority that animal feed supplements fall within "animal feed," the AAR found the product was specifically formulated and marketed for use only in animal feeding, with carriers as dominant constituents making it unfit for general enzyme use. Consequently, it was held classifiable under CTH 2309, specifically CTI 23099090, and not under CTH 3507.

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ISSUES PRESENTED AND CONSIDERED

1) Whether "XYLAMAX", an enzyme-based animal feed additive containing xylanase with carriers, is classifiable as "Preparations of a kind used in animal feeding" under Heading 2309 (specifically tariff item 23099090), or as "Enzymes; prepared enzymes not elsewhere specified or included" under Heading 3507.

ISSUE-WISE DETAILED ANALYSIS

Issue 1: Proper tariff classification of XYLAMAX-Heading 2309 vs Heading 3507

Legal framework (as applied by the Court/Authority): The Court applied the sequential approach under the General Rules for Interpretation, particularly Rule 1, requiring classification according to the terms of the headings and the relevant Section/Chapter Notes. The Court treated HSN Explanatory Notes as a safe interpretative aid for understanding the scope of Headings 2309 and 3507, and relied on binding departmental guidance (CBIC circulars/instructions) to the extent they support uniform classification practice.

Interpretation and reasoning: The Court found that Heading 2309 is an end-use based heading covering "preparations of a kind used in animal feeding," including premixes/additives used to make complete or supplementary feeds. The product's material characteristics and commercial identity were assessed from its composition and stated use: XYLAMAX contains xylanase (10-30%) combined with dominant carriers (limestone 70-90% and starch 5-10%), and is prepared and marketed for use solely in animal feed to improve digestibility. The Court accepted that the inclusion of carriers renders the product suitable for specific use in animal feed and makes it unfit for general enzyme use, supporting its treatment as an animal feeding preparation rather than as enzyme simpliciter.

The Court addressed the existence of two competing headings (2309 and 3507) and examined the Chapter 23 explanatory exclusion concerning protein substances of Chapter 35. It reasoned that, on the facts, XYLAMAX is not imported as a pure protein/enzyme substance but as a formulated preparation with carriers, and its functional utility and predominant usage are confined to animal feeding. The Court further treated common/commercial parlance and functional character as relevant indicators of classification, finding that the product is understood in trade as an animal feed additive/premix for animal feeding.

The Court also relied on departmental circular guidance stating that preparations containing active substances along with carriers, used and known in trade as animal feed supplements/premixes for a specific use in animal feeding, fall under the animal feeding preparations heading. Additionally, it considered official recognition in consolidated lists/instructions concerning animal feed additives as supporting the product's character as a feed-grade additive intended for animal feeding.

Conclusions: The Court conclusively held that XYLAMAX is classifiable under Heading 2309 as a "preparation of a kind used in animal feeding," and, since it is neither retail pet food nor specifically enumerated fish/shrimp feed, it falls under the residual entry "Other," i.e., tariff item 23099090, rejecting classification under Heading 3507 for this product as imported and used.

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