Tariff classification of polypropylene glycol turns on its use as a plasticizer, placing it under the plasticizer heading.

Polypropylene glycol imported for use as a plasticizer was classified under the tariff heading for plasticizers and not under the competing heading for plastic materials. The Supreme Court applied its earlier classification ruling that plasticizers fall within the relevant plastics-related tariff entry, and accepted the Tribunal's view that the product's use as a plasticizer brought it within that heading. The revenue's challenge to the classification therefore failed, while the refund issue was left for separate examination by the customs authority in accordance with law.

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Issues: Whether Polypropylene Glycol imported by the assessee was classifiable under Item 38.01/19(1) of the Customs Tariff Act, 1975 or under Item 39.01/06 of the Customs Tariff Act, 1975.

Analysis: The Court noted that the controversy stood covered by its earlier decision holding that plasticizers fall under Heading 38.01/19(6) and not under Heading 39.01/19(6). Since the imported product was accepted as being used as a plasticizer, the Tribunal's view placing it in the assessee's claimed tariff entry was consistent with the settled classification position.

Conclusion: The product was held classifiable under Item 38.01/19(1) and not under Item 39.01/06, in favour of the assessee.

Final Conclusion: The revenue's challenge to the tariff classification failed, and the refund aspect was left to be examined separately by the customs authority in accordance with the governing law.

Ratio Decidendi: Goods used as plasticizers are to be classified under the tariff heading applicable to plasticizers, and not under the competing plastic materials heading.

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