Customs Tariff Act | ‘End Use’ and ‘Common Parlance’ Tests Cannot Override Statutory Context: Supreme Court Classifies Mushroom Shelves as ‘Aluminium Structures’

“A surface supports an object but does not become a part of it. To illustrate, a car needs a road to operate. One could even create a custom race track for a specific race car, enabling it to be driven solely on that track. However, it is never disputed that the road is not a ‘part’ of the car.”— In a seminal ruling Supreme Court of India, comprising Justice J.B. Pardiwala and Justice R. Mahadevan, set aside the order of the CESTAT and held that aluminium shelving used in mushroom cultivation must be classified as ‘Aluminium Structures’ attracting customs duty, rather than ‘Parts of Agricultural Machinery’ which attracts a nil rate.

The Classification Conundrum

The dispute arose from the import of "Aluminium Shelving for Mushroom Growing" by M/s Welkin Foods. The respondent sought to classify the goods under Customs Tariff Item (CTI) 84369900 as ‘parts’ of agricultural machinery, which carries a Nil rate of duty. The Revenue, however, contended that the goods were essentially ‘Aluminium Structures’ under CTI 76109010, attracting a basic customs duty of 10%.

The CESTAT had previously ruled in favor of the importer, reasoning that the shelves were custom-made for mushroom cultivation and integrated with other machinery like watering systems, thus becoming "parts" of a mushroom growing apparatus. The Supreme Court, in a detailed 109-page judgment, dismantled this reasoning, clarifying the strict parameters for applying the ‘Common Parlance Test’ and the ‘End Use Test’ under the Customs Tariff Act, 1975.

The Limits of Common Parlance

The Court undertook an exhaustive review of the General Rules of Interpretation (GRI) and the Harmonised System of Nomenclature (HSN). Justice Pardiwala, writing for the Bench, emphasized that the "Common Parlance Test" (interpreting terms as per market understanding) is not a tool of first resort in the HSN era. The Court held that where the statute provides explicit guidance through Section Notes, Chapter Notes, or HSN Explanatory Notes, trade understanding cannot override legal definitions.

“The common or trade parlance test cannot serve as a measure of first resort. It should only be employed after a thorough review of all relevant material confirms the absence of statutory guidance.”

The Bench observed that Chapter Heading 7610 is an eo-nomine provision (describing goods by name) covering "Aluminium Structures." Since the HSN Explanatory Notes clearly define structures to include prepared components like rods and tubes joined by riveting or bolting, and the subject goods fit this objective description, there was no ambiguity requiring a resort to trade parlance.

The ‘End Use’ Fallacy

Addressing the importer's argument that the shelves were "intended" for agricultural use, the Court clarified the jurisprudence on ‘End Use’. The Bench reiterated the principle from Dunlop India that the taxable event is the import, and the condition of goods at that time is paramount. ‘Use’ is relevant only if the tariff entry explicitly or inherently refers to it (e.g., "machinery for...").

“Actual use can be considered only in those rare instances where there is overwhelming statutory evidence to that effect.”

The Court noted that Chapter Heading 7610 makes no reference to use. Therefore, the fact that the shelves are used in agriculture does not strip them of their identity as aluminium structures. The Court warned that allowing "intended use" to dictate classification for eo-nomine headings would allow importers to manipulate classification merely by altering product names or marketing strategies.

Machinery vs. Structure: The Functional Unit Analysis

The judgment provided a critical analysis of what constitutes a "part" of machinery versus a "structure." The respondent argued that the shelves, combined with watering and compost systems, formed a "functional unit" or a "composite machine." The Court rejected this, noting that the individual machines (watering, filling, spreading) performed independent functions and were not mechanically dependent on the shelves. The shelves merely provided a static platform.

“To classify these static, non-moving assemblies as ‘machinery’ is a classification that defies common sense and is patently absurd.”

The Court applied Section Note 1(f) to Section XV, which excludes machinery (Section XVI) from being classified as base metal articles. However, since the shelves were determined to be static structures and not machinery or parts thereof, they fell squarely within Section XV (Base Metals). The Court held that a "part" must be essential for the machine to function. Since the watering and filling machines were fully operational on their own, the shelves were merely auxiliary supports, not essential parts.

The Supreme Court allowed the Revenue's appeal, setting aside the CESTAT order. The goods are to be classified under CTI 76109010 as Aluminium Structures. This judgment establishes a rigorous framework for classification disputes, prioritizing statutory text and objective characteristics over subjective "intended use" or loose market terminology.

Date of Decision: January 06, 2026