In re Sanmina-SCI India Pvt Ltd. (CAAR Mumbai)
Customs Authority for Advance Rulings (CAAR), Mumbai, has ruled on the classification of three specific products—Back Enclosure for C6 Version-1, Back Enclosure for C6 Version-2, and Front Enclosure for B6x Wi-Fi receivers—imported by Sanmina-SCI India Pvt Ltd. These enclosures are die-cast aluminium structures integral to Wi-Fi receivers designed for use in Point-to-Point (PTP) and Point-to-Multipoint (PTMP) network configurations, especially under challenging environmental conditions.
Nature and Functionality of Goods: The enclosures serve multiple purposes beyond mere housing. They provide:
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Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) shielding, preserving signal integrity.
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Thermal dissipation features, including fins and external projections, preventing overheating of internal components.
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Mechanical strength and weather resistance, built to endure temperatures from –40°C to +55°C, wind speeds up to 200 km/h, and 100% humidity.
Each enclosure is specifically designed to house a Printed Circuit Board Assembly (PCBA) and ensure the receiver’s performance, reliability, and longevity in outdoor environments.
Classification Issue: The main question before CAAR was the appropriate classification under the Customs Tariff Act, 1975. The applicant proposed classification under CTI 8517 79 90, arguing that the enclosures were essential components (parts) of wireless communication devices, incapable of functioning independently.
The classification hinged on:
