Chapter 85 is a major category of electromechanical products in the HS classification system, covering electric motors, generators, transformers, batteries, household appliances, electronic components, etc. Goods in this chapter generally have functions of electrical energy conversion, storage, or transmission, and it is the main chapter for technology-intensive products in international trade. Heading 8507 specifically covers storage batteries (secondary batteries), including lead-acid batteries, lithium-ion batteries, nickel-metal hydride batteries, etc., as well as their dedicated parts. Parts under this heading must be dedicated to storage batteries, not general-purpose electronic components. The first 2 digits 85 represent Chapter 85 electromechanical products; digits 3-4, 07, represent the storage battery heading; digits 5-6, 90, represent the subheading for storage battery parts. Therefore, 850790 refers to parts dedicated to storage batteries, such as battery cases, plates, separators, terminals, etc. This commodity is a part dedicated to storage batteries, rather than a complete battery (the first digits of 8507) or a general-purpose part (such as 8544 electric wire). Because it is dedicated to storage batteries and is not specifically named in other headings, it is classified under 850790.

Product name: The specific name of the declared commodity, such as lead-acid battery case, lithium-ion battery separator. Use: Clearly state the type of storage battery for which it is used, such as automotive starting battery, energy storage battery. Material: Main material composition, such as ABS plastic, lead alloy, polyethylene. Brand: Manufacturer brand or trademark. Model: Product model or specification. Whether dedicated: Declare whether it is dedicated to storage batteries. Appearance: Appearance features such as shape and color. Product name: Lead-acid battery casing; Use: For automotive starting lead-acid batteries; Material: ABS plastic; Brand: XX; Model: ABC-123; Whether dedicated: Yes; Appearance: Black rectangular casing. Misdeclaring general-purpose parts as dedicated parts, leading to classification errors. False declaration of material, affecting classification and tax rate. Vague use description, making it impossible to prove dedicated use.

The core basis for classification is the dedicated nature of the part. It must be proven that the part is dedicated to storage batteries and is not specifically named in other headings. If the part can be used for other equipment, it may be classified under a general-purpose parts heading. 8507 Storage batteries: 8507 is complete storage batteries, while 850790 is their dedicated parts. Complete batteries have energy storage functions; parts are only used for assembly or repair. 8544 Insulated wire: 8544 is wire and cable. Even if used for battery connection, it is still classified under 8544, unless it is a dedicated internal battery component. 3926 Plastic articles: If the battery case is a general-purpose plastic article, it may be classified under 3926, but a dedicated battery case should be classified under 850790. 8538 Electrical apparatus parts: 8538 covers parts such as switches and relays, which are different from battery parts. Is the part dedicated to storage batteries? Is it specifically named in other headings? Does the material affect classification? Is the use clear? Is it distinguished from complete batteries?

How can I check the tax rate for 850790? You can check the corresponding import and export tax rates by entering HS code 850790 through customs tariff schedules, the international trade single window, or professional query tools. Tax rates change with policy adjustments, so it is recommended to rely on the latest official data. How do storage battery parts differ from general-purpose parts? The key is dedicated use. If the part can only be used for storage batteries, it is classified under 850790; if it can be used for other equipment, it is classified as a general-purpose part. Proof of use must be provided at declaration. What regulatory conditions are required for importing 850790? Regulatory conditions vary by part type. For example, lithium battery parts may involve dangerous goods transport requirements. It is necessary to check the latest Customs Regulatory Conditions code table and confirm whether 3C certification, etc., is required. Must brand and model be provided at declaration? Yes, brand and model are important declaration elements. If there is no brand, it must be declared as "no brand," and the model should be filled in truthfully; otherwise, it may be deemed a false declaration. Should a battery case be classified under 850790 or 3926? If the battery case is dedicated to storage batteries and has a specific structure, it should be classified under 850790; if it is a general-purpose plastic container, it is classified under 3926. It must be judged according to its designed use. What is the export tax rebate for 850790? The export tax rebate rate must be checked in the latest export tax rebate rate library. Parts of different materials and uses may have different rebate rates. It is recommended to rely on the tax authority's publications. Is a lithium battery separator classified under 850790? Yes, a lithium battery separator is a dedicated part and is classified under 850790. However, note that if the separator material is specifically named in other headings, that classification may take precedence. How can classification errors be avoided during customs declaration? It is recommended to provide detailed product descriptions, proof of use, material reports, etc., and apply for advance classification if necessary. Refer to the Explanatory Notes and classification decisions to ensure accuracy.