Inevitable exempt emergence in manufacturing cannot revive a settled input liability question after binding precedent.

The Court held that no substantial question of law arose because the dispute had already been concluded by an earlier binding decision on the same issue. It applied the principle that where the exempt product necessarily emerges in the manufacture of the dutiable final product and cannot be avoided by using a lesser quantity of inputs, the claimed input-based liability does not survive as a fresh legal question. As the governing issue was already settled, the challenge to the order under appeal was rejected and the appeal was dismissed as meritless.

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Issues: Whether any substantial question of law arose for consideration in the appeal in view of the prior decision holding the issue to be academic and dismissing the challenge.

Analysis: The appeal concerned a recurring dispute already considered by the Court in an earlier matter involving the same question. The Court noted that the earlier decision had applied the settled principle that where the dutiable final product cannot be manufactured with a lesser quantity of inputs and the exempt product emerges inevitably in the manufacturing process, the question of treating such exempt emergence as a separate input-based liability does not survive. On that basis, the issue was treated as already concluded and no fresh substantial question of law was found to arise.

Conclusion: No substantial question of law arose, and the appeal failed.

Final Conclusion: The challenge to the order under appeal was rejected and the appeal was dismissed as meritless.

Ratio Decidendi: Where the exempt emergence is inevitable in the manufacture of the dutiable final product and the governing issue has already been answered by binding precedent, no substantial question of law survives for reconsideration.

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