Captive valuation under cost-of-production rules excludes loan interest and unproven raw-material loss additions for assessable value

Captively consumed zinc and lead concentrates valued under Rule 6(b)(ii) must be assessed on accepted cost-of-production principles. CAS-4 excludes interest on loans from the elements of production cost, so that component could not be added to the valuation. Alleged loss of raw materials also could not be included because the department produced no evidence that the loss related to a recoverable production cost. The revenue valuation on both components was therefore unsustainable, and the consequential demand failed.

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Issues: (i) Whether interest on loans was required to be included in the cost of production while determining the assessable value of captively consumed zinc and lead concentrates under Rule 6(b)(ii) of the Central Excise (Valuation) Rules, 1975. (ii) Whether the cost of alleged loss of raw materials was required to be included in such cost of production.

Issue (i): Whether interest on loans was required to be included in the cost of production while determining the assessable value of captively consumed zinc and lead concentrates under Rule 6(b)(ii) of the Central Excise (Valuation) Rules, 1975.

Analysis: The assessable value of captively consumed goods had to be determined on the basis of cost of production according to the settled principles of costing. The adopted costing standard, CAS-4, excludes interest cost from the elements of cost of production. The later Board circular recognizing CAS-4 was treated as reflecting the correct method of valuation, and the Supreme Court's approach in the cited valuation jurisprudence supported adoption of normal accountancy principles for such computation.

Conclusion: Interest on loans was not required to be included in the cost of production; the finding against the assessee on this point was unsustainable.

Issue (ii): Whether the cost of alleged loss of raw materials was required to be included in such cost of production.

Analysis: The assessee had explained that the loss referred to in its accounts was loss of ore concentrates and not loss of raw materials for which separate inclusion in cost was justified. If the department's case was that the loss related to some other raw materials, the burden lay on the department to establish that fact. No evidence was produced to support that assertion.

Conclusion: The cost of alleged loss of raw materials was not required to be included; the finding against the assessee on this point was unsustainable.

Final Conclusion: The valuation adopted by the revenue could not be sustained on either contested component of cost, and the demand with consequential reliefs failed.

Ratio Decidendi: For captively consumed goods valued under Rule 6(b)(ii) of the Central Excise (Valuation) Rules, 1975, cost of production must be computed according to accepted costing principles, and any component not shown to be part of the relevant production cost cannot be added by the department without evidentiary support.

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