Incidental manufacturing residue is not excisable absent a statutory fiction, and value-based credit reversal cannot follow automatically.

Residue arising incidentally in galvanisation, such as zinc ash and dross, is treated as non-excisable waste unless the statute creates a legal fiction deeming it manufactured goods. Mere marketability, saleability, or a later tariff entry does not by itself make such residue dutiable. On the same reasoning, a value-based demand under Rule 6(3) of the Cenvat Credit Rules cannot be sustained merely because inputs are present in the waste or residue; liability requires a contrary legal basis.

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Issues: (i) Whether zinc ash, dross and other residue arising in the galvanization process were excisable goods; and (ii) whether a demand of 8-10% of their value could be sustained under Rule 6(3) of the Cenvat Credit Rules, 2004.

Issue (i): Whether zinc ash, dross and other residue arising in the galvanization process were excisable goods.

Analysis: The goods arose only as residue in the course of manufacture of galvanised pipes. The governing principle applied was that excise duty can be levied only if the item is the result of manufacture and has the character of excisable goods. The Tribunal relied on the Supreme Court's treatment of zinc ash, dross and similar residues as non-manufactured waste and noted that mere marketability or saleable value does not by itself render such residue excisable. The later tariff entry was also held insufficient, in the absence of a deeming provision or chapter note creating a legal fiction treating the residue as manufactured goods.

Conclusion: The impugned zinc ash, dross and other residue were not excisable goods.

Issue (ii): Whether a demand of 8-10% of their value could be sustained under Rule 6(3) of the Cenvat Credit Rules, 2004.

Analysis: The demand under Rule 6(3) proceeded on the basis that credit attributable to inputs used in relation to the residue was liable to reversal or payment of a percentage of value. The Tribunal applied the principle that where the residue is only waste or refuse arising incidentally in the course of manufacture, the presence of a part of the inputs in such residue does not justify a reversal demand of the kind raised. Reliance was placed on the settled approach recognising that waste, refuse or by-products arising during manufacture do not attract such liability in the absence of a contrary legal basis.

Conclusion: The demand of 8-10% under Rule 6(3) was not sustainable.

Final Conclusion: The stay applications were allowed, the impugned orders were set aside, and the appeals succeeded in full.

Ratio Decidendi: Residue emerging incidentally in manufacture is not excisable unless the statute creates a legal fiction treating it as manufactured goods, and a value-based demand cannot be sustained merely because inputs are present in waste or residue.

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