Tariff classification and limitation in PVC masterbatches: physical mixture fell under residuary entry, and the demand was time-barred.

PVC masterbatches, being a physical mixture of PVC and pigment used for colouring, were held not to answer the technical description of a polyvinyl derivative and also not to qualify as pigment in trade or technical parlance; the residuary tariff entry therefore applied. On limitation, the first show cause notice was treated as defective and superseded by a fresh notice issued on a different basis and for a different amount. In the absence of established suppression to justify extended limitation, the demand raised on the second notice was time-barred.

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Issues: (i) Whether PVC masterbatches were classifiable under Tariff Item 15A(1)(ii) as polyvinyl derivatives, or under Tariff Item 14(1)(ii) as pigments, or fell under the residuary Tariff Item 68; and (ii) whether the demand was barred by limitation in view of the change from the first show cause notice to the second notice.

Issue (i): Whether PVC masterbatches were classifiable under Tariff Item 15A(1)(ii) as polyvinyl derivatives, or under Tariff Item 14(1)(ii) as pigments, or fell under the residuary Tariff Item 68.

Analysis: The product was found to be a single-stream physical mixture of PVC and pigment, used only for imparting colour in the PVC industry. It did not undergo a chemical change so as to become a derivative of polyvinyl chloride. At the same time, it was not bought or sold in trade as a pigment, nor did it answer the trade or technical understanding of pigment as such. Since it was neither covered by Tariff Item 15A(1)(ii) nor by Tariff Item 14(1)(ii), the proper classification was the residuary entry.

Conclusion: PVC masterbatches were not classifiable under Tariff Item 15A(1)(ii) or Tariff Item 14(1)(ii) and were correctly held to fall under Tariff Item 68.

Issue (ii): Whether the demand was barred by limitation in view of the change from the first show cause notice to the second notice.

Analysis: The first notice was held to be defective because it proceeded on a different basis and for a different amount, and it was superseded by the second notice. The second notice alone was treated as the valid notice for the proceedings. As no suppression was established for extending limitation, the demand computed from the second notice was beyond time.

Conclusion: The demand was barred by limitation.

Final Conclusion: The classification issue was decided in the assessees favour to the extent that the goods were kept out of Tariff Item 15A(1)(ii) and Tariff Item 14(1)(ii), and the demand ultimately failed on limitation as well.

Ratio Decidendi: For classification under a technically worded tariff entry, the product must answer the technical description in substance; a mere physical admixture without chemical transformation does not create a derivative, and a defective notice superseded by a fresh notice cannot sustain a time-barred demand in the absence of a valid basis for extended limitation.

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