Silicone emulsion classification under excise tariff turns on specific coverage of silicones and emulsions in liquid form.

Silicone emulsion prepared from duty-paid imported silicone oil, emulsifier and water was analysed under the Central Excise Tariff Schedule as a product expressly covered by Item 15A(1). The entry was read in its technical and scientific sense, and the explanations were taken to extend it to silicones and emulsions in liquid form. On that basis, conversion of silicone oil into a stable silicone emulsion was treated as manufacture for excise purposes, while Item 68 was excluded because a specific tariff entry applied. Arguments based on the earlier customs duty on the input and on absence of chemical reaction were rejected.

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Issues: Whether silicone emulsion prepared from duty-paid imported silicone oil, emulsifier and water is classifiable under Item 15A(1) of the Central Excise Tariff Schedule and chargeable to excise duty thereunder, and whether it can instead be treated as falling under Item 68 or outside the scope of manufacture.

Analysis: Item 15A(1) was construed in its technical and scientific sense. The entry expressly includes silicones, and the combined operation of Explanation II and Explanation III brings within its scope products of the relevant kind in liquid form, including emulsions. Silicone oil is a product of chemical synthesis and, when converted into silicone emulsion, the resultant product is a stable and distinct dispersion and not a mere unchanged mixture. The process therefore falls within manufacture for excise purposes. The arguments based on earlier tariff wording, on absence of chemical reaction, on prior duty paid as additional customs duty, and on double taxation were rejected. The tribunal also held that Item 68 could not apply where the specific tariff entry covered the product.

Conclusion: The emulsion is dutiable under Item 15A(1) of the Central Excise Tariff Schedule and not under Item 68; the appeal fails on the majority view.

Final Conclusion: The majority held the product liable to excise duty under the specific tariff entry, with the result that the departmental classification was sustained and the assessee's challenge did not succeed.

Ratio Decidendi: Where a tariff entry specifically covers silicones and its explanations extend the entry to emulsions in liquid form, conversion of duty-paid silicone oil into silicone emulsion attracts excise duty under that entry notwithstanding the earlier customs countervailing duty on the input.

Concurring Opinion: Shri H.R. Syiem took the view that emulsification of duty-paid silicone oil did not justify a second levy under the same tariff item, and that the appeal should be allowed because the same duty could not be imposed again on the converted product.

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