Tariff classification by trade meaning: aluminium silicate used as an extender was not a filler and qualified for refund.

Tariff classification of Aluminium Silicate P. 820 depended on its trade and technical meaning in the paint industry, where it functioned as an extender to adjust paint properties, reduce cost, improve storage behaviour and prevent settling. The Court distinguished an extender from a filler, which is used to fill cracks or indentations and produce a smooth surface, and held that the customs authorities wrongly treated the terms as synonymous. It also stated that, when the Department invokes a more specific tariff entry, it must prove that the goods actually fall within it. On that basis, the goods were classified under Tariff Item 28.01/58(1), not 32.04/12(1), and the refund of excess customs duty was upheld.

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Issues: Whether Aluminium Silicate P. 820 imported for use in paints was classifiable under Tariff Item 28.01/58(1) as an inorganic chemical compound, or under Tariff Item 32.04/12(1) as a filler, and whether the excess customs duty was refundable.

Analysis: The decisive question was the proper tariff classification of the imported product according to its commercial and technical meaning in the paint industry. The material showed that Aluminium Silicate P. 820 functioned as an extender used to adjust paint properties, reduce cost, improve storage behaviour and prevent settling. An extender is distinct from a filler, which is used to fill cracks or indentations and to obtain a smooth surface before painting. The trade literature and glossary relied upon by the Court supported the distinction between extenders and fillers, and the customs authorities proceeded on an erroneous assumption that the two were synonymous. The Court also held that, where the Department seeks to classify goods under a more specific charging entry, it must establish that the goods fall within that entry; the impugned orders were not supported by the evidence and were perverse.

Conclusion: Aluminium Silicate P. 820 was not covered by Tariff Item 32.04/12(1) but fell under Tariff Item 28.01/58(1), and the assessee was entitled to refund of the excess customs duty.

Final Conclusion: The writ petition succeeded, the customs classification adopted by the authorities was set aside, and the refund claim was upheld.

Ratio Decidendi: Tariff classification of goods must be determined according to their trade and technical meaning in the relevant industry, and a product used as an extender cannot be treated as a filler unless it answers that description in commercial parlance.

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