Tariff classification of calcined pyrophyllite: Heading 25.05 prevails over Heading 38.16 under Chapter 25 interpretation.

Calcined pyrophyllite was held classifiable under Heading 25.05, not Heading 38.16, because the tariff scheme, Note 2 to Chapter 25, and the amended sub-headings showed that clays and related mineral products remained within the parent heading whether or not calcined. The interpretation was reinforced by the Board's earlier clarification on calcined magnesite, the Explanatory Notes, and the rule that a sub-heading cannot expand beyond the scope of its heading. The product was therefore treated as covered by Heading 25.05, while the question of manufacture was left open.

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Issues: Whether calcined pyrophyllite is classifiable under Heading 25.05 of the Central Excise Tariff Act, 1985 or under Heading 38.16, and whether the appeal succeeds on classification.

Analysis: The dispute turned on the effect of Note 2 to Chapter 25, the historical treatment of calcined mineral products under Heading 25.05, and the later insertion of sub-headings which expressly covered clays and other materials whether or not calcined. The Board's earlier clarification regarding calcined magnesite, the wording of the amended sub-headings, and the principle that the scope of a sub-heading cannot exceed the parent heading supported the view that calcined products were still within Heading 25.05. The Explanatory Notes and tariff structure also indicated that clays, whether or not calcined, remained within the chapter heading. The question of manufacture was not decided.

Conclusion: Calcined pyrophyllite is classifiable under Heading 25.05 and not under Heading 38.16. The appeal succeeds on classification, while the issue of manufacture is left open.

Final Conclusion: The impugned classification was set aside in favour of the assessee, and the product was held to fall within Heading 25.05 of the tariff.

Ratio Decidendi: Where the tariff heading and its sub-headings, read with the chapter scheme and interpretative rules, indicate that calcined clays remain covered by the parent heading, a calcined mineral product cannot be excluded from that heading merely by reliance on a general chapter note.

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