Chapter 40 covers rubber and articles thereof, including raw materials such as natural rubber, synthetic rubber, and vulcanized rubber, as well as various finished rubber products. This chapter is the core chapter for rubber products in the HS classification, involving tires, rubber hoses, transmission belts, sanitary articles, industrial parts, etc. Products within the chapter are subdivided by rubber type, use, and processing stage, and attention must be paid to distinguishing them from chapters on plastics, textiles, machinery, etc. Heading 4010 specifically covers conveyor belts or transmission belts of vulcanized rubber, including belt material, belt strips, belts, etc. This heading is further subdivided by use and cross-sectional shape, such as conveyor belts, transmission belts, synchronous belts, etc. The key characteristics are that the goods are made of vulcanized rubber and function to convey materials or transmit power, rather than being other rubber products. The first 2 digits 40 represent Chapter 40, rubber and articles thereof. Digits 3-4, 10, represent heading 4010, namely conveyor belts or transmission belts of vulcanized rubber. Digits 5-6, 39, represent subheading 401039, namely other transmission belts of vulcanized rubber. Under heading 4010, it is divided into multiple subheadings by use and shape: 401011 to 401019 are conveyor belts, 401021 to 401029 are transmission belts (V-belts, etc.), and 401031 to 401039 are other transmission belts. 401039 specifically refers to other transmission belts not elsewhere specified, such as round belts, flat belts, etc. The commodity is a transmission belt of vulcanized rubber, and its function is to transmit power, which conforms to the description of heading 4010. Subheading 401039 is a residual item and applies to transmission belts not specifically named, such as other transmission belts with a non-V-shaped cross-section and not synchronous belts. If it is a conveyor belt, it is classified under other subheadings of 4010; if it is made of plastics, it is classified under Chapter 39; if it is reinforced with textile materials and the rubber is only a coating, it may be classified under Chapter 59.

Product name: The specific name of the declared commodity, such as "transmission belt of vulcanized rubber", "rubber synchronous belt", etc., which must be consistent with the actual goods. Use: Explain the usage scenario of the transmission belt, such as "used in automobile engines", "industrial machinery transmission", etc. Material: Clearly state that it is made of vulcanized rubber, and indicate whether it contains textile material reinforcement or a metal frame. Brand: Fill in the manufacturer or brand name; if there is no brand, fill in "none". Specifications and model: Include cross-sectional shape (such as V-shaped, round, flat), dimensions (length, width, thickness), etc. Whether reinforced: State whether it is reinforced with textile materials, steel wire, etc., and the type of reinforcing material. Appearance: Describe color, shape, etc., such as "black endless belt". Product name: transmission belt of vulcanized rubber; Use: used for power transmission in industrial machinery; Material: vulcanized rubber, containing polyester fiber reinforcement; Brand: XX; Specifications and model: V-shaped, length 1000mm, width 10mm, thickness 8mm; Whether reinforced: yes, polyester fiber; Appearance: black endless belt. Mistakenly declaring a transmission belt as a conveyor belt, resulting in an incorrect subheading. Failure to indicate reinforcing materials, which may affect classification. Incomplete specifications and model, such as missing cross-sectional shape.

Core basis for classification: 1. The commodity is made of vulcanized rubber; 2. The function is transmission (transmitting power); 3. The cross-sectional shape is not the toothed profile of a synchronous belt; 4. It is not specifically named under other subheadings. A comprehensive judgment must be made based on material, use, and cross-sectional shape. 401031 Synchronous belts of vulcanized rubber: Synchronous belts have teeth and are used for precise transmission; 401039 covers other transmission belts without teeth. 401032 V-belts of vulcanized rubber: V-belts have a trapezoidal cross-section; 401039 covers transmission belts of other cross-sectional shapes. 401039 Other transmission belts of vulcanized rubber: This code is a residual item and applies to transmission belts not elsewhere specified. 591000 Conveyor belts or transmission belts of textile materials: If textile material is the essential character and rubber is only a coating, then classification falls under Chapter 59. Is it made of vulcanized rubber? Is its function transmission? Is the cross-sectional shape neither V-shaped nor synchronous belt? Does it contain textile reinforcing materials? Is it specifically named under other subheadings?

How to distinguish between transmission belts and conveyor belts? Transmission belts are used to transmit power, usually endless, with various cross-sectional shapes; conveyor belts are used to convey materials, usually flat belts, carrying materials. Judging by function, transmission belts are classified under the transmission belt subheadings of heading 4010, and conveyor belts under the conveyor belt subheadings. How should a transmission belt of vulcanized rubber containing textile reinforcing materials be classified? If the textile material is only for reinforcement and rubber is the essential character, it is still classified under 4010. If the textile material constitutes the essential character, it is classified under Chapter 59. Judgment should be based on material proportion and function. What is the difference between 401039 and 401031, 401032? 401031 is synchronous belts, 401032 is V-belts, and 401039 is other transmission belts. They are distinguished by cross-sectional shape: synchronous belts have teeth, V-belts have a trapezoidal cross-section, and other shapes are classified under 401039. What should be included in the specifications and model when declaring? It should include cross-sectional shape, length, width, thickness, whether reinforced, reinforcing material, etc. Ensure completeness and accuracy to facilitate customs classification. If a transmission belt is made of plastics, which code should it be classified under? Transmission belts made of plastics should be classified under Chapter 39, with the specific subheading determined according to the type of plastic and use, such as 3926 for other articles of plastics. How to inquire about the tariff rate for 401039? Tariff rates change, and the latest rates can be inquired through the website of the General Administration of Customs, the CCPIT, or professional customs brokers. HS code inquiry tools can also be used by entering the code to obtain real-time tariff rates. What are the regulatory conditions for 401039? Regulatory conditions vary by country. In China, there are generally no special regulations, but commodity inspection may be involved. It is recommended to consult the latest Customs Import and Export Tariff or consult a customs broker. If a transmission belt is classified under 401039, is a test report required? Usually not required, but if customs has doubts about the material or function, a test report may be requested to prove that it is made of vulcanized rubber and has a transmission function. It is recommended to keep relevant technical documents.