Exemption on duty-paid copper inputs includes manufacturing loss when rebate is computed on material actually used in production.

An exemption notification for pipes and tubes made from duty-paid copper or copper alloys was interpreted to grant rebate on the full quantity of duty-paid raw material used in manufacture, not merely on the copper ultimately present in the finished product. Manufacturing loss formed part of the material consumed in the production process, so the exemption extended to that loss as well. The operative principle was that, where relief is linked to duty already paid on input material used in manufacture, the rebate is computed by reference to the input actually consumed, including unavoidable manufacturing loss.

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Issues: Whether, under the exemption notification for pipes and tubes of copper and copper alloys, the rebate was to be computed on the entire quantity of duty-paid raw material used in manufacture, including manufacturing loss, or only on the copper content found in the finished product.

Analysis: The notification granted exemption to pipes and tubes manufactured using duty-paid copper or copper alloys in crude form, with the rebate equating to the duty already paid on the input material. The relevant consideration was the quantity of duty-paid raw material used in manufacture, not merely the portion that ultimately remained in the finished pipes or tubes. Since manufacturing loss is part of the raw material used in the manufacturing process, the exemption was held to extend to that loss as well.

Conclusion: The exemption had to be calculated on the full quantity of duty-paid copper or copper alloys used in manufacture, including manufacturing loss, and not only on the copper content in the finished product.

Final Conclusion: The appeal succeeded and the assessee was held entitled to exemption on the raw material lost in the course of manufacture while producing the pipes and tubes.

Ratio Decidendi: Where an exemption notification grants relief equal to duty already paid on duty-paid input material used in manufacture, the rebate is determined by the quantity of input actually used, including manufacturing loss, and not by the quantity incorporated in the finished product.

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