Chapter 85 covers electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. This chapter is the most concentrated chapter for the classification of electromechanical products, covering a wide range from household appliances to industrial electronic equipment. The core criterion is whether the goods have an electrical function or serve as dedicated parts of electrical equipment. This chapter contains numerous headings, such as 8501 electric motors, 8504 transformers, 8516 electric heating apparatus, etc., and is a chapter with a high incidence of customs classification disputes. Heading 8516 covers electric instantaneous or storage water heaters and immersion heaters; electric space heating apparatus and soil heating apparatus; electro-thermic hair-dressing apparatus and hand dryers; electric smoothing irons; other electro-thermic appliances of a kind used for domestic purposes; and parts of all the foregoing appliances. The core of this heading is the 'electro-thermic' function, i.e., appliances that convert electrical energy into heat for heating purposes and their dedicated parts. However, it does not include electric heating elements themselves (such as electric heating resistors of 8504) or textile articles such as electric blankets. HS code 851690 is a 6-digit subheading. The first 2 digits '85' represent Chapter 85 (electrical machinery and equipment and parts thereof), a major category in the entire HS classification system. Digits 3-4 '16' represent heading 8516, i.e., electric instantaneous or storage water heaters and immersion heaters; electric space heating apparatus and soil heating apparatus; electro-thermic hair-dressing apparatus and hand dryers; electric smoothing irons; other electro-thermic appliances of a kind used for domestic purposes; and parts thereof. Digits 5-6 '90' are the subheading, indicating 'parts', i.e., parts specialized for or principally used with the appliances listed in 8516. Therefore, the complete meaning of 851690 is 'dedicated parts of electro-thermic appliances', excluding parts of other electrical equipment. The goods are classified under 851690 because they are dedicated parts of electro-thermic appliances and are not more specifically named in other headings. For example, if a thermostat for an electro-thermic appliance is a general-purpose electrical component, it should be classified under 8536; if it is dedicated for electro-thermic appliances, it is classified under 851690. Compared with complete machines of 8516, 851690 applies only to parts, and they must be specialized for or principally used with the appliances of 8516. If a part can also be used with other equipment, it must be classified as a general-purpose part.

Product Name: The Chinese and foreign language names of the declared goods, which should accurately reflect the function, material and use of the part. For example, 'heating tube for electric water heater' or 'thermostat for electric iron'. Use: Clearly specify which electro-thermic appliance the part is dedicated to, such as electric water heater, electric iron, space heater, etc. The use determines whether it is classified under 851690. Material: Declare the main material of the part, such as stainless steel, copper, ceramics, plastics, etc. Material affects classification; for example, plastic parts may be classified under Chapter 39. Brand: Fill in the brand name (if no brand, fill in 'no brand'); the brand helps customs confirm the attributes of the goods. Model: Fill in the model or specification of the part to facilitate customs identification of the specific goods. Working Principle: Briefly explain the role of the part in the electro-thermic appliance, such as heating, temperature control, insulation, etc. Whether Dedicated Part: Declare whether the part is dedicated for or principally used with the appliances listed in 8516. This is the key to classification under 851690. Customs declaration example: Product Name: Heating tube for electric water heater Use: Dedicated for storage-type electric water heater Material: Stainless steel tube, copper connector Brand: A.O. Smith Model: 100108 Working Principle: After energization, the resistance wire generates heat, which is transferred to water through the stainless steel tube Whether Dedicated Part: Yes Classification: 85169090.90 Remarks: This part is only used for electric water heaters under 8516, conforming to the provisions of subheading 851690. Mistakenly classifying a general-purpose thermostat under 851690, when it should actually be classified under 8536. Failing to distinguish between complete machines and parts, declaring a complete machine as a part or vice versa. Ignoring the material; if a plastic housing is declared separately, it may be classified under Chapter 39.

The core basis for classification is the Harmonized Commodity Description and Coding System and its notes. First, determine whether the goods are parts of electro-thermic appliances, i.e., whether they are dedicated for or principally used with the appliances listed in 8516. Second, check whether there is a more specific listing in other headings, such as electric heating resistors (8504), thermostats (8536), plastic products (Chapter 39), etc. Finally, make a comprehensive determination based on the function, material and use of the part. If the part is a general-purpose item, it is classified as a general-purpose part; if it is a dedicated item, it is classified under 851690. 851680 Electric Heating Resistors: 851680 covers electric heating resistors themselves, such as heating wires and heating tubes, but as independent elements; 851690 covers dedicated parts of electro-thermic appliances, such as heating tubes already assembled into components. 8536 Electrical Switches, Protective Devices: 8536 covers general-purpose thermostats, switches, etc.; if a thermostat is dedicated for electro-thermic appliances, it is classified under 851690, otherwise under 8536. 8419 Non-electric Heating Equipment: 8419 covers non-electric heating equipment, such as gas water heaters; their parts are classified under 841990, while parts of electro-thermic appliances are classified under 851690. 8479 Other Machinery: 8479 covers machinery not elsewhere specified; if a part of an electro-thermic appliance has an independent function, it may be classified under 8479, but usually 851690 takes precedence. 3926 Plastic Articles: If the part is made of plastic and has no electrical function, it may be classified under 3926; but if it is dedicated for electro-thermic appliances and combined with other parts, it is still classified under 851690. Is the part dedicated for the appliances of 8516? Is there a more specific listing in other headings? Does the part have an independent electrical function? Does the material affect classification? Is it a general-purpose part?

Should the heating tube of an electric water heater be classified under 851690 or 851680? If the heating tube is an independent electric heating resistor element, not assembled into a component, it should be classified under 851680. If the heating tube has been assembled into a dedicated part of an electric water heater, such as a heating assembly with flange and terminals, it is classified under 851690. The key is whether it is declared as a dedicated part. Which code should the thermostat of an electric iron be classified under? If the thermostat is dedicated for the electric iron and cannot be used for other equipment, it is classified under 851690. If it is a general-purpose thermostat, it is classified under 8536. Determination should be based on the designed use and whether it is dedicated. How should parts of 851690 be classified if they are used for multiple electro-thermic appliances? If a part is suitable for multiple appliances of 8516, it can still be classified under 851690, as long as it is principally used with the appliances listed in 8516. However, if it is also used with equipment of other chapters, it must be classified as a general-purpose part. Should the plastic housing of an electro-thermic appliance be classified under 851690 or 3926? If the plastic housing is dedicated for an electro-thermic appliance and declared as a part, it is classified under 851690. If declared separately and without other electrical parts, it may be classified under 3926. However, it is usually classified under 851690 when declared together with electrical parts. How to check the import tariff rate for 851690? You can check through the official website of the General Administration of Customs, China International Trade Single Window, or third-party query platforms by entering HS code 851690, selecting the destination country and country of origin, to check the MFN rate, agreement rate, etc. Tariff rates may change, and the latest published rates shall prevail. What is the difference between 851690 and 851679? 851679 covers complete machines of other household electro-thermic appliances, while 851690 covers parts of these appliances. The difference between complete machines and parts lies in whether they fully have the heating function. Are parts of electric blankets classified under 851690? Electric blankets themselves are classified under 6301; their parts, if they are heating wires, etc., may be classified under 851680 or 851690, but this needs to be determined based on the specific part. Generally, electrical parts of electric blankets are classified under 851690. When declaring 851690, what does customs most often question? Customs often questions the specificity of the part, i.e., whether it is dedicated for the appliances of 8516. Enterprises need to provide use descriptions, drawings, etc. as proof. If it cannot be proven, it may be classified under a general-purpose part code.