Marketability and effluent treatment use determine excisability, while classification and valuation issues were remanded for fresh decision.

Ammonium hydroxide solution generated in the assessee's premises was treated as marketable and excisable because comparable market evidence had already supported marketability, the test report showed 5.9% ammonium content, and contrary material did not displace saleability. Its consumption in an effluent treatment plant to satisfy pollution control requirements was treated as use in relation to manufacture, attracting captive consumption treatment. For clearances to the other unit, classification under Chapter 29 and valuation required fresh determination, so the duty demand and penalty on those clearances were set aside and the matter was remanded for re-adjudication.

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Issues: (i) whether the ammonium hydroxide solution emerging in the assessee's premises was marketable and excisable, (ii) whether its use in the effluent treatment plant amounted to use in relation to manufacture so as to attract captive consumption treatment, and (iii) whether the classification, valuation, duty demand, and penalty relating to clearances to the other unit required affirmation or remand.

Issue (i): Whether the ammonium hydroxide solution emerging in the assessee's premises was marketable and excisable.

Analysis: Marketability was treated as established because comparable prices of like goods had already been upheld on the basis of market enquiries and that finding was not under challenge. The test report showed ammonium hydroxide content of 5.9%, and a certificate stating that 6% to 8% ammonium solution was not saleable did not displace the conclusion that the product in question was saleable. The presence of other toxic elements also showed that the classification adopted below could not be sustained as stated.

Conclusion: The product was held to be marketable and excisable.

Issue (ii): Whether its use in the effluent treatment plant amounted to use in relation to manufacture so as to attract captive consumption treatment.

Analysis: The product arose as an intermediate by-product or co-product during manufacture of pigments and was consumed in the effluent treatment plant to meet pollution control requirements. Applying the settled principle that use of inputs in an effluent treatment plant for compliance with pollution control requirements is use in or in relation to manufacture, the Tribunal treated such consumption as eligible for the relevant captive consumption exemption.

Conclusion: The use in the effluent treatment plant was held to be use in relation to manufacture and the captive consumption exemption was applicable.

Issue (iii): Whether the classification, valuation, duty demand, and penalty relating to clearances to the other unit required affirmation or remand.

Analysis: The classification under Chapter 29 was not upheld on the reasoning recorded below, and the appropriate classification was left open. For the clearances to the other unit, the period involved was treated as requiring valuation under the applicable valuation rule after excluding the inapplicable rule cited by the department. Since both classification and valuation required fresh determination, the matter was remitted to the original authority. The confiscation and penalty relating to goods at the assessee's premises were set aside, while the duty and penalty relating to clearances to the other unit were also set aside pending re-determination.

Conclusion: The classification and valuation issues were remanded for fresh decision, and the penalty and duty demands were not finally sustained.

Final Conclusion: The appeal succeeded only to the extent of setting aside the demands and penalty on the goods consumed in the assessee's premises, while the dispute concerning clearances to the other unit was sent back for fresh adjudication on classification and valuation.

Ratio Decidendi: Goods consumed in an effluent treatment plant for compliance with pollution control requirements are used in relation to manufacture, and where marketability and valuation are not finally established, classification and duty liability may be remitted for fresh determination.

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