Tariff classifications set for ultrasonic parking sensor parts under CTI 40169320, 40169990, 85416000, 85129000, 39095000, 39093100

The AAR determined tariff classifications for multiple components of an ultrasonic parking sensor. The PSA decoupling ring and Plug 5 GEN, being vulcanised rubber articles, were classified under CTI 40169320 (rubber rings) and CTI 40169990 (other articles of vulcanised rubber), respectively. The Piezo disc was held classifiable under CTI 85416000 as mounted piezo-electric crystals. The front cover, powder-coated aluminium membrane, Gen 5.3 contact (terminal pin), PCBA, shield cover, and sensor housing, all being parts solely/principally for ultrasonic parking sensors, were classified under CTI 85129000 as parts of heading 8512. Wevopur 306 M/30 and Wevonut 9015 were classified under CTI 39095000 and CTI 39093100, respectively, as polyurethane resin and poly(methylene phenyl isocyanate).

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1. ISSUES PRESENTED AND CONSIDERED

1.1 Classification of rear parking alert/assist system as a whole, and its coverage under Heading 8512 as electrical signalling equipment of a kind used for motor vehicles.

1.2 Correct tariff classification of the ultrasonic parking sensor itself: whether as a semiconductor-based transducer under Heading 8541 or as a part of signalling equipment under Heading 8512.

1.3 Classification of the individual components of the ultrasonic parking sensor, and whether they fall under Chapter 40 (rubber articles), Chapter 85 (mounted piezo-electric crystals; parts of signalling equipment), or Chapter 39 (polyurethanes and isocyanates) applying Section and Chapter Notes, HSN Explanatory Notes and General Rules for Interpretation.

1.4 Applicability of Heading 8708 (parts and accessories of motor vehicles) to the ultrasonic parking sensor and its parts.

1.5 Entitlement of the applicant to confidentiality and non-publication of the ruling under Regulation 27 of the Customs Authority for Advance Rulings Regulations, 2021.

2. ISSUE-WISE DETAILED ANALYSIS

Issue 1 - Classification of rear parking alert/assist system

Legal framework

2.1 The Court referred to Chapter Heading 8512 covering "Electrical lighting or signalling equipment ... of a kind used for cycles or motor vehicles" and the HSN Explanatory Notes thereto, which specifically mention under item (13) "electrical apparatus which emit audio signals to warn the driver of the proximity of vehicles or other objects behind the vehicle when reversing", comprising ultrasonic sensors, ECU and buzzer/beeper.

Interpretation and reasoning

2.2 The rear parking alert/assist system consists of ultrasonic sensors, a controller (ECU), and display/buzzer, activated when reverse gear is engaged, and performs the function of warning the driver (audibly/visually) of obstacles behind the vehicle.

2.3 While individual sub-assemblies (sensor, ECU, display) perform subsidiary functions (signal generation, processing, display), as a complete unit the system performs a clearly defined signalling function, squarely fitting the description and example in the Explanatory Notes to Heading 8512.

Conclusions

2.4 The rear parking alert/assist system is classifiable under Heading 8512 as electrical signalling equipment of a kind used for motor vehicles.

Issue 2 - Classification of the ultrasonic parking sensor (Heading 8541 vs 8512)

Legal framework

2.5 The Court considered:

(a) Heading 8541 and the HSN Explanatory Notes thereto (semiconductor devices; semiconductor-based transducers; mounted piezo-electric crystals), including Note 12 to Chapter 85 defining "semiconductor-based transducers".

(b) Section Note 2 to Section XVI governing classification of "parts of machines" in Chapters 84 and 85, in particular:

- Note 2(a): parts that are themselves goods covered by any heading of Chapter 84 or 85 are to be classified in that heading; and

- Note 2(b): other parts suitable for use solely or principally with a particular kind of machine are to be classified with that machine.

Interpretation and reasoning

2.6 The applicant claimed the ultrasonic parking sensor is a "semiconductor-based transducer" within Heading 8541, relying on the presence of a piezo disc and the general definition of semiconductor-based sensors.

2.7 The Court examined the technical nature of the G5.3 Disc Betacera (Piezo) and found it to be a piezoelectric ceramic element (e.g. PZT or similar ceramics), which are dielectric materials operating on the piezoelectric effect, not on semiconductor electron-hole conduction. Such elements are not "semiconductor devices" as contemplated in Heading 8541.

2.8 The ultrasonic parking sensor converts mechanical/ultrasonic phenomena into electrical signals through a piezoelectric ceramic, not through semiconductor properties as required for "semiconductor-based transducers" under Note 12 to Chapter 85. Hence it cannot be treated as a semiconductor-based transducer of Heading 8541 51.

2.9 On sequential application of Section Note 2 to Section XVI, there is no specific heading in Chapters 84 or 85 that, as a "goods" description, directly and independently covers the ultrasonic parking sensor itself; it therefore does not fit within Note 2(a).

2.10 The ultrasonic parking sensor is specifically designed and used solely or principally with the rear parking alert/assist system of Heading 8512, and functions as an essential component thereof.

2.11 Under Note 2(b) to Section XVI, such a part, suitable for use solely or principally with apparatus of Heading 8512, is to be classified with that apparatus; CTI 8512 90 00 expressly covers "Parts" of Heading 8512.

Conclusions

2.12 The ultrasonic parking sensor is not a "semiconductor-based transducer" of Heading 8541 51 and is not classifiable under Heading 8541 as a whole device.

2.13 Applying Section Note 2(b) to Section XVI, the ultrasonic parking sensor, being a part used solely/principally with the parking alert/assist system of Heading 8512, is classifiable under CTI 8512 90 00 as a part of signalling equipment.

Issue 3 - Classification of individual components of the ultrasonic parking sensor

Legal framework

2.14 The Court applied:

(a) Section Note 2 to Section XVI, especially Notes 2(a) and 2(b), and its sequential application.

(b) Section Note 1(a) to Section XVI, excluding "other articles of a kind used in machinery or mechanical or electrical appliances or for other technical uses, of vulcanised rubber other than hard rubber (heading 4016)".

(c) Heading 4016 and its subheading for rubber rings (CTI 4016 93 20) and for other rubber articles (CTI 4016 99 90).

(d) Heading 8541 and its Explanatory Notes on "Mounted piezo-electric crystals", particularly CTI 8541 60 00.

(e) Heading 3909 and its coverage of amino-resins, phenolic resins and polyurethanes (including poly(methylene phenyl isocyanate)).

(f) Case law on the principle that "part of part is part of the whole", treating subcomponents of a part as parts of the parent machine for classification.

Interpretation and reasoning

(a) Rubber decoupling ring (PSA de-coupling ring / Decoupling Ring HKM Lin U)

2.15 The decoupling ring is a silicone/vulcanised rubber ring used inside the ultrasonic parking sensor for vibration isolation and sealing. As a shaped article of vulcanised rubber other than hard rubber, it is excluded from Section XVI by Note 1(a) and falls under Heading 4016.

2.16 Being a circular sealing ring, its specific description corresponds to "Rubber rings (O-ring)" under CTI 4016 93 20, which prevails over a more general residual subheading.

(b) Front cover for sensor

2.17 The plastic front cover is specifically designed and used solely with the ultrasonic parking sensor, and is not a generic plastic article or covered by Note 1 to Section XVI.

2.18 No heading in Chapters 84 or 85 describes it as an independent "goods" entry, so Note 2(a) does not apply. Under Note 2(b), as a part suitable for use solely/principally with signalling equipment of Heading 8512, it is to be classified under CTI 8512 90 00 as a part of Heading 8512.

(c) Powder coated aluminium membrane

2.19 The membrane, made of aluminium, is a dedicated component of the ultrasonic parking sensor, not a general-purpose metal article and not excluded by Note 1 to Section XVI.

2.20 In the absence of a specific heading describing it as a standalone good in Chapters 84 or 85, Note 2(a) does not apply. Under Note 2(b), being suitable solely/principally for the ultrasonic parking sensor (a part of Heading 8512), it is treated as a part of signalling equipment and falls under CTI 8512 90 00.

(d) Piezo disc (G5.3 DISC)

2.21 The G5.3 piezo disc is a piezoelectric ceramic disc, equipped with electrodes/electrical connections making it a "mounted piezo-electric crystal". The HSN Explanatory Notes to Heading 8541 expressly state that mounted piezo-electric plates, discs or rings with electrodes or electric connections are covered under this heading as "mounted piezo-electric crystals".

2.22 As it is a good specifically covered as such under Heading 8541, Note 2(a) to Section XVI requires classification in that heading, irrespective of its end-use in the ultrasonic sensor.

(e) Plug 5 GEN (rubber plug)

2.23 Plug 5 GEN is made of butyl/vulcanised rubber, without conducting elements, functioning as a rubber component rather than an electrical connector.

2.24 By Note 1(a) to Section XVI, articles of vulcanised rubber for technical use are excluded from Section XVI and fall under Heading 4016. There is no more specific eight-digit description applicable; thus, it is classifiable under the residual CTI 4016 99 90 ("Other").

(f) Gen 5.3 Contact (terminal pin)

2.25 The terminal pin connects the PCB and piezo element, is specifically designed for the ultrasonic parking sensor, and is neither a generic wire/cable nor covered by any specific heading in Chapters 84 or 85 as an independent good.

2.26 Accordingly, Note 2(a) does not apply; under Note 2(b), as a part suitable solely/principally with the ultrasonic parking sensor (part of Heading 8512), it is classifiable as a part of signalling equipment under CTI 8512 90 00.

(g) PCBA CD Lin (Printed Circuit Board Assembly)

2.27 The PCBA, comprising resistors, capacitors, transformers and circuitry, is designed exclusively for the ultrasonic parking sensor and used for signal filtering, control and voltage regulation.

2.28 It is not treated as a generic printed circuit/assembly under any specific goods heading independent of its use in Heading 8512, and no Chapter 84/85 heading is found to specifically describe it as such; hence Note 2(a) does not apply. As a part suitable solely/principally with the ultrasonic parking sensor (part of Heading 8512), it is classifiable under CTI 8512 90 00 as per Note 2(b).

(h) Shield cover for sensor (EMC protection)

2.29 The shield cover, made of copper-zinc alloy, serves as an electromagnetic shielding component and is specifically designed for the ultrasonic parking sensor. It is not a general-purpose metal item covered by Note 1 to Section XVI.

2.30 Absent a specific goods-heading in Chapters 84 or 85, Note 2(a) is inapplicable. Being suitable solely/principally with the ultrasonic parking sensor, it is treated as a part of signalling equipment under Heading 8512 and classifiable under CTI 8512 90 00 by Note 2(b).

(i) HKMC 6PIN HV LIN Sensor housing

2.31 The plastic sensor housing is a bespoke casing for the ultrasonic parking sensor, not a generic plastic article, and is not excluded by Note 1 to Section XVI.

2.32 As there is no specific heading for such housings in Chapters 84 or 85 as independent goods, Note 2(a) does not apply. Under Note 2(b), being suitable solely/principally with signalling equipment of Heading 8512, it is classifiable as a part under CTI 8512 90 00.

(j) Wevopur 306 M/30 (Resin)

2.33 Wevopur 306 M/30 is a polyurethane resin preparation, used to encapsulate and protect electronic parts. Chapter Heading 3909 covers "Amino-resins, phenolic resins and polyurethanes, in primary forms".

2.34 As a polyurethane resin in primary form, not as an article of plastic, it falls directly under Heading 3909 and, more specifically, under CTI 3909 50 00 (Polyurethanes).

(k) Wevonut 9015 (Hardener)

2.35 Wevonut 9015 is a reaction mass in which 4,4'-methylenediphenyl diisocyanate and O-(p-isocyanatbenzyl) phenyl isocyanate predominate, used as a hardener with polyurethane resin. Its composition and function correspond to poly(methylene phenyl isocyanate) (PMDI).

2.36 The Explanatory Notes to Heading 3909 specifically include poly(methylene phenyl isocyanate). Accordingly, applying GIR 1, it is classifiable under CTI 3909 31 00 (Poly(methylene phenyl isocyanate) (crude MDI, polymeric MDI)).

Conclusions

2.37 The Court concluded that the individual components are classifiable as follows:

- PSA de-coupling ring / Decoupling Ring HKM Lin U - CTI 4016 93 20

- Front cover for sensor - CTI 8512 90 00

- Powder coated aluminium membrane - CTI 8512 90 00

- Piezo disc (G5.3 DISC) - CTI 8541 60 00

- Plug 5 GEN - CTI 4016 99 90

- Gen 5.3 Contact (terminal pin) - CTI 8512 90 00

- PCBA CD Lin - CTI 8512 90 00

- Shield cover for sensor - CTI 8512 90 00

- HKMC 6PIN HV LIN Sensor housing - CTI 8512 90 00

- Wevopur 306 M/30 (Resin) - CTI 3909 50 00

- Wevonut 9015 (Hardener) - CTI 3909 31 00

Issue 4 - Applicability of Heading 8708 (parts and accessories of motor vehicles)

Legal framework

2.38 The main question framed by the Court expressly included the alternative of classification under Heading 8708, and Section Note 2 to Section XVII (excluding many Chapter 85 articles from Heading 8708) was taken into account in the overall analysis.

Interpretation and reasoning

2.39 Having determined that the rear parking alert/assist system is signalling equipment of Heading 8512, and that the ultrasonic parking sensor and its relevant parts are classifiable either under Heading 8512 or specific headings such as 8541 and 3909/4016, the Court implicitly applied the exclusionary principles of Section XVII.

2.40 Once an article is appropriately classified under Chapters 39, 40, 85 etc., and especially when it falls under Heading 8512 or 8541, it cannot be reclassified as a "part and accessory of motor vehicles" under Heading 8708 in view of the Section XVII notes and the principle that specific provisions prevail over general "parts of vehicles" headings.

Conclusions

2.41 Neither the ultrasonic parking sensor nor its components are classifiable under Heading 8708; they are to be classified under the specific headings/CTIs identified in Issue 3, primarily under Heading 8512, with certain items falling under Headings 4016, 8541 and 3909.

Issue 5 - Request for confidentiality and non-publication of ruling

Legal framework

2.42 The Court examined Regulation 27 of the Customs Authority for Advance Rulings Regulations, 2021, which permits publication of advance rulings, subject to a proviso that, at the applicant's request, necessary steps may be taken to protect commercially confidential information.

Interpretation and reasoning

2.43 The applicant contended that the application and ruling contained highly technical, proprietary information whose publication would prejudice its competitive position.

2.44 On examination, the Court found that the ruling did not disclose any technical data or unique proprietary information warranting confidentiality. The product details relied upon were available in the public domain, including on the applicant's own website.

Conclusions

2.45 The conditions for protection of commercially confidential information under Regulation 27 were not satisfied. The request to withhold the ruling from publication was rejected, and the ruling was held fit for publication in accordance with Regulation 27.

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