Composite manufacturing process not separately dutiable unless the intermediate product is distinct and marketable.

A composite, integrated and uninterrupted manufacturing process producing rubberised and conveyor belts did not attract separate excise duty at the intermediate rubberised canvas stage. Item No. 19(1)(b) was read as covering cotton fabrics subjected to processes in the course of manufacture of the end-product, not as permitting repeated levy at each step. Because the supposed intermediary product was not shown to emerge as a distinct, separately marketable commodity, no separate licence requirement or duty demand could be sustained at that stage. An interpretation imposing duty at every manufacturing step was rejected as commercially impracticable and inconsistent with the charging entry.

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Issues: Whether the intermediary product arising during the manufacture of rubberised belts and conveyor belts was separately dutiable under Item No. 19(1)(b) of the tariff, and whether the excise authorities could require a licence and demand duty at that intermediate stage.

Analysis: The process of manufacture was found to be composite, integrated and uninterrupted, beginning with the rubberised canvas stage and ending only when the finished belts emerged after vulcanisation. Item No. 19(1)(b) was construed as applying to cotton fabrics subjected to one or more processes in the course of manufacture of the end-product, not as authorising repeated levy at every intermediate stage. The Court also held that an interpretation causing duty to be levied at each step of manufacture would produce an unreasonable and commercially impracticable result, which could not be accepted. The supposed intermediary product was not shown to be separately sold or used in the market so as to justify a distinct levy.

Conclusion: The intermediary product was not separately dutiable, and the excise demand and consequential licence requirement could not be sustained.

Ratio Decidendi: Where a manufacturing process is composite, integrated and uninterrupted, no separate excise duty can be levied on an intermediate stage product unless that product emerges as a distinct, separately marketable commodity liable to duty under the charging entry.

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