Technical classification of centrifuged rubber goods required expert testing, so the matter was remanded for fresh adjudication.

Classification of goods emerging during centrifuging of natural rubber latex depended on their technical characterisation as waste and scrap under Chapter 40.04 or as natural rubber under Heading 40.01. Because no chemical testing or expert opinion had been obtained by the department, while the assessee produced a technical certificate supporting classification as natural rubber, the existing record was insufficient for a final finding. The matter was remanded for de novo adjudication after proper sampling and expert evidence so the classification and related duty demand could be determined afresh.

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Issues: Whether the impugned goods emerging during centrifuging of natural rubber latex were correctly classifiable as waste and scrap under Chapter 40.04 of the Central Excise Tariff, or as natural rubber under Heading 40.01, and whether the matter required remand for fresh adjudication.

Analysis: The classification dispute turned on the true nature of the products obtained in the centrifuging process. The record showed that the department had not drawn samples for chemical testing or obtained expert opinion, while the assessee produced a certificate from the Department of Polymer Science and Rubber Technology indicating that the goods would be identified as natural rubber. In such circumstances, the nature of the goods could not be conclusively determined on the existing material, and the technical evidence required fresh examination. The lower authority was therefore required to consider expert evidence after proper sampling before recording a final finding on classification and the related duty demand.

Conclusion: The classification issue was not finally decided and the matter was remanded to the original authority for de novo consideration after drawal of samples and expert opinion.

Ratio Decidendi: Where the correct tariff classification of goods depends on technical characterisation, and no adequate scientific testing has been undertaken, the matter should be remanded for fresh adjudication on the basis of proper expert evidence.

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