Agricultural micronutrient classification turns on functional use and chapter notes, not chemical composition alone.

Tariff classification of agricultural micronutrients turned on their true functional character and the scheme of the chapter notes, not on their chemical composition alone. Products used to correct soil deficiency and support plant nutrition were treated as fertilisers rather than plant growth regulators, because plant growth regulators are hormones that influence growth and do not act as nutrients. The presence of nitrogen in chelated micronutrients was sufficient to attract heading 3105 where the goods were of a kind used as fertilisers and nitrogen functioned as an essential constituent, even if present in small quantity. Functional agricultural use and the chapter notes therefore governed classification.

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Issues: (i) Whether the products in question were classifiable as "plant growth regulators" under heading 3808 or as "other fertilisers" under heading 3105 of the First Schedule to the Central Excise Tariff Act, 1985. (ii) Whether the presence of nitrogen in chelated micronutrients was sufficient to bring them within heading 3105 and deny classification as plant growth regulators.

Issue (i): Whether the products in question were classifiable as "plant growth regulators" under heading 3808 or as "other fertilisers" under heading 3105 of the First Schedule to the Central Excise Tariff Act, 1985.

Analysis: Classification had to be determined with reference to the scheme of the tariff, the chapter notes, and the true functional character of the goods. The tariff recognised fertilisers as a distinct class within the chemical section, and the use of the goods in agriculture was central to their character. The materials on record showed that micronutrients were applied to correct soil deficiency and support plant nutrition, whereas plant growth regulators were hormones that influence growth but do not serve as nutrients. On that basis, the goods could not be treated as plant growth regulators merely because they were chemically compounded products.

Conclusion: The goods were not classifiable as plant growth regulators and were liable to be treated as fertilisers for tariff purposes.

Issue (ii): Whether the presence of nitrogen in chelated micronutrients was sufficient to bring them within heading 3105 and deny classification as plant growth regulators.

Analysis: Note 6 to Chapter 31 limited heading 3105 to products of a kind used as fertilisers containing, as an essential constituent, at least one of the fertilising elements nitrogen, phosphorus or potassium. The Court held that chelated micronutrients used in agriculture contained nitrogen in a manner sufficient for the goods to fall within the chapter when their intended use was as fertilisers. The fact that the quantity of nitrogen was small did not detract from its essentiality in the product's functional use. The chapter notes were construed so as not to exclude products genuinely used as fertilisers unless specifically barred by the notes.

Conclusion: Presence of nitrogen in chelated micronutrients was sufficient to sustain classification under heading 3105 and the claim for exclusion from that heading was rejected.

Final Conclusion: The Revenue's challenge failed on the principal classification dispute, and the assessee's classification under heading 3105 was upheld for the products decided upon, while limited further examination was left open for the remaining products under the direction issued.

Ratio Decidendi: In tariff classification, the functional use and the scheme of the chapter notes prevail over a purely chemical description, and agricultural micronutrients used as fertilisers containing an essential fertilising element cannot be treated as plant growth regulators merely because they are chemically compounded.

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