HSN explanatory note controls tariff classification: absence of mineral oil or fatty substance kept Silfin-9009 under organic surface-active preparation.

Tariff classification under Heading 34.03 required the essential constituents specified in the HSN Explanatory Note, namely a mineral oil or fatty substance mixed with surface-active agents, or a water-dispersible textile lubricating preparation with the stated composition. The record showed Silfin-9009 to be a mixture of organic surface-active agents, with no mineral oil or fatty substance in its composition, and the manufacturing process did not satisfy the note's requirements. It was therefore excluded from Heading 34.03 and held to fall under Heading 34.02 as an organic surface-active preparation; the Revenue's classification was upheld.

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Issues: Whether the product "Silfin-9009" was classifiable under Heading 34.02 as an organic surface-active preparation or under Heading 34.03 as a lubricating preparation or preparation used for oil or grease treatment of textile materials.

Analysis: For classification under Heading 34.03, the HSN Explanatory Note relied upon required a mixture of mineral oil or fatty substance with surface-active agents, or a water-dispersible textile lubricating preparation containing a high proportion of surface-active agents together with mineral oils and other chemicals. The material on record showed the product to be a mixture of organic surface-active agents, with no mention of mineral oil or fatty substance in its composition. The stated manufacturing process did not support classification under Heading 34.03, and the essential requirement indicated by the explanatory note was not satisfied.

Conclusion: The product was not classifiable under Heading 34.03 and was rightly classifiable under Heading 34.02. The appeal was therefore allowed in favour of the Revenue.

Final Conclusion: The disputed product fell within the residual category for organic surface-active preparations rather than lubricating preparations based on lubricants, and the classification adopted by the assessee was rejected.

Ratio Decidendi: Where the tariff entry is guided by HSN explanatory notes, the presence of the essential constituent required by the note is necessary for classification under that heading, and absence of that constituent excludes the product from that entry.

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