Liquid nitrogen as a manufacturing input qualifies for Modvat credit where it is essential to the chemical process.

Liquid nitrogen used to chill reactor vessels and maintain an inert atmosphere during bulk drug manufacture was treated as an input used in relation to manufacture for Modvat credit under Rule 57A. Although it did not become part of the final product or act as a raw material in the chemical reaction, it was found indispensable to secure the proper reaction, prevent oxidation and decomposition, and achieve the desired output. The governing test applied was functional necessity to the manufacturing process, not physical incorporation into the goods. On that basis, it was regarded as a consumable eligible for Modvat credit.

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Issues: Whether liquid nitrogen, used for chilling and maintaining an inert atmosphere in the reactor vessel during manufacture of bulk drugs, is an input used in or in relation to manufacture so as to qualify for Modvat credit under Rule 57A of the Central Excise Rules.

Analysis: Liquid nitrogen did not participate in the chemical reaction as a raw material, but it was found to be indispensable for ensuring the proper chemical reaction to produce the final goods. It was purged into the reactor vessel only for the two specified drugs to provide the required chilled and inert atmosphere, prevent oxidation and decomposition, and secure the desired reaction efficiency. The governing test was whether the item was essential to the chemical process culminating in the final product, not whether it physically formed part of that product. On that test, the item was treated as a consumable used in relation to manufacture and not as a mere item for upkeep or operational maintenance of the equipment.

Conclusion: Liquid nitrogen qualified as an eligible input for Modvat credit.

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