Tariff classification of zinc ash upheld where chemical test report supported the importer's claim and Revenue failed to displace it.

Imported goods were examined for tariff classification as zinc ash or zinc dross, and the chemical test report showing 85.7% free metallic zinc, together with the material description, supported treatment as zinc ash under Heading 26.20. The appellate authority had extended the benefit of doubt to the importer on the basis of the report and specifications, and that classification was not disturbed because the Revenue failed to show error in the finding. The duty position was therefore sustained, and any refund was stated to be subject to the law of unjust enrichment.

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Issues: Whether the imported goods were correctly classifiable as zinc ash under Heading No. 26.20 of the Customs Tariff and entitled to the concessional treatment claimed, or whether they were zinc dross as alleged by the Revenue.

Analysis: The sample was tested and found to contain 85.7% free metallic zinc, with the material described as a heterogeneous mixture of greyish metallic lumps and grey powder. The classification dispute turned on the distinction between zinc ash and zinc dross. The relevant tariff entry covered ash and residues containing metals and metallic compounds, and the chapter note clarified that the entry applied to ash and residues used in industry for extraction of metals or for manufacture of chemical compounds of metals. The appellate authority had relied on the test report and the cited specifications to extend the benefit of doubt to the importer, and no reason was found to disturb that view.

Conclusion: The goods were not shown to warrant interference with the finding that they fell within zinc ash for duty purposes, and the Revenue's challenge failed.

Final Conclusion: The classification adopted by the appellate authority was sustained, and the Revenue appeal was rejected, with any refund to be governed by the law of unjust enrichment.

Ratio Decidendi: Where the chemical test report and surrounding material support the classification adopted by the appellate authority, and the Revenue fails to show error in that classification, the appellate finding will not be interfered with in duty classification disputes.

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