In re Sanmina SCI India Private (CAAR Mumbai)
Customs Authority for Advance Rulings (CAAR), Mumbai examined the classification of “heat sinks” imported by Sanmina-SCI India Private Limited for use in the manufacture of data center switches and uplink cards. The Authority held that the goods are classifiable as “parts” under Tariff Item 8517 79 90 of the First Schedule to the Customs Tariff Act, 1975.
Background and Issue
The applicant sought an advance ruling on the correct classification of imported heat sinks intended for use in the Printed Circuit Board Assemblies (PCBAs) of data center switches and uplink cards. These products are passive thermal management devices engineered to dissipate heat generated by electronic components, ensuring that they function within prescribed thermal limits.
The applicant submitted that the heat sinks were designed with multiple fins and protrusions to increase surface area and facilitate heat dissipation primarily through natural convection. The devices operate by absorbing heat from mounted components and transferring it to the surrounding environment through their extended surfaces.
Legal Framework
The Authority observed that the matter fell squarely within the scope of Section 28H(2) of the Customs Act, 1962, as it related to classification under the Customs Tariff. Referring to Rule 1 of the General Rules for Interpretation (GRI), the Authority noted that classification must be determined according to the terms of the headings and relevant Section or Chapter Notes.
The relevant chapter heading under consideration was 8517, which covers “telephone sets, including telephones for cellular networks or for other wireless networks; other apparatus for the transmission or reception of voice, images or other data, including apparatus for communication in a wired or wireless network (such as a local or wide area network); and parts thereof.”
