Chapter 39 covers plastics and articles thereof, and is an important chapter in the HS classification organized by material. This chapter includes plastics in primary forms (such as resins and pellets), waste and scrap, semi-manufactures, and various plastic products. However, it should be noted that many plastic products may be classified under other chapters according to their use or material (such as Chapter 40 rubber, Chapter 42 bags and cases, Chapter 94 furniture, etc.). The core of this chapter lies in the processing form and final use of plastic materials, and it is the basic chapter for classifying plastic products in international trade. Heading 3921 covers other plates, sheets, film, foil and strip, of plastics, non-cellular. Specifically, it includes single-layer or multi-layer plates, sheets, film and foil made of plastics, not reinforced, laminated or supported, or reinforced but not combined with other materials. However, 3921 specifically refers to non-cellular plastic products, while 392119 is a subheading under it, specifically for plates, sheets, film and foil of cellular plastics. Therefore, 3921 as a whole includes both cellular and non-cellular types, and careful distinction is required. Code 392119 is a 6-digit subheading. The first 2 digits '39' represent Chapter 39 plastics and articles thereof. Digits 3-4 '21' represent heading 3921, namely other plates, sheets, film, foil and strip, of plastics. Digits 5-6 '19' represent subheading 392119, in which '1' indicates of cellular plastics and '9' indicates other. Specifically, heading 3921 is divided into multiple subheadings: 392111 is plates, sheets, film and foil of cellular plastics, but only those not combined with other materials; 392112 is plates, sheets, film and foil of cellular plastics, but combined with other materials; 392119 is other plates, sheets, film and foil of cellular plastics, namely cellular plastic products other than the above two. Therefore, 392119 covers a relatively broad scope, including various cellular plastic plates, sheets, film and foil, but excludes specific types. This product is plates, sheets, film and foil of cellular plastics, and does not belong to the specific types of 392111 or 392112, so it is classified under 392119. 392111 requires not combined with other materials, 392112 requires combined with other materials, while 392119 covers all other cellular plastic plates, sheets, film and foil, such as products that have undergone special treatment or have special shapes. If it is non-cellular plastic, it should be classified under other subheadings of 3921 (such as 392190). If it is cellular plastic but belongs to a specific type, it may be classified under 392111 or 392112.

Product name: The standard name of the declared commodity should accurately describe the material and form, such as 'cellular plastic board', 'cellular plastic sheet', etc. Material: Specific type of plastic, such as polyethylene (PE), polystyrene (PS), polyurethane (PU), etc., and it is necessary to indicate whether it is cellular plastic. Appearance: Describe shape (plate, sheet, film, foil), color, dimensions, etc., such as 'rectangular board, white, thickness 5 mm'. Specifications and dimensions: Specific values such as length, width, thickness, etc., usually in millimeters or centimeters. Whether combined with other materials: State whether it is laminated or combined with other materials (such as fabric, paper, metal foil), which affects subheading division. Use: Main use, such as packaging, construction, automotive interiors, etc., which helps confirm classification. Brand or model: If there is a brand or model, it must be declared; if there is no brand, indicate 'none'. Processing method: Such as extrusion, molding, cutting, etc., which affects whether it belongs to plates, sheets, film and foil. Product name: cellular plastic board; Material: polyethylene (PE) foam; Appearance: white rectangular board; Specifications and dimensions: 1000 mm x 500 mm x 10 mm; Whether combined with other materials: no; Use: packaging cushioning material; Brand: none; Processing method: extrusion molding. Failure to indicate 'cellular' leads to classification under non-cellular subheading 392190. Incorrect declaration of 'combined with other materials' leads to classification under 392112. Material description is not specific, such as writing only 'plastic', affecting classification. Missing specifications and dimensions make it impossible to determine whether it belongs to plates, sheets, film and foil.

Core basis for classification: first confirm that the product is made of plastic (Chapter 39), secondly that it is in the form of plates, sheets, film and foil (heading 3921), then determine whether it is cellular plastic (subheading 39211), and finally determine 392111, 392112 or 392119 according to whether it is combined with other materials and the specific type. If it is cellular plastic and not combined with other materials, classify under 392111; if combined with other materials, classify under 392112; other cases classify under 392119. It should be noted that if the product is cellular plastic but its shape is not plates, sheets, film and foil (such as blocks), it may be classified under primary forms of 3901-3914 or 3925, etc. 392111 Plates, sheets, film and foil of cellular plastics, not combined with other materials: 392111 requires not combined with other materials, while 392119 covers other cellular plastic plates, sheets, film and foil, and may include cases that have undergone special treatment or are combined with other materials but do not meet the standard of 392112. 392112 Plates, sheets, film and foil of cellular plastics, combined with other materials: 392112 explicitly involves combination with other materials, such as lamination, coating, etc., while 392119 does not emphasize combination and may be single-layer or uncombined. 392190 Other plates, sheets, film and foil of non-cellular plastics: 392190 is for non-cellular plastics, while 392119 is for cellular plastics; the key difference is whether it is foamed. 392010 Plates, sheets, film and foil of polymers of ethylene, non-cellular: 392010 is a non-cellular product of a specific polymer (ethylene), while 392119 is cellular plastic and does not limit the type of polymer. 392020 Plates, sheets, film and foil of polymers of propylene, non-cellular: Similar to 392010, but for polymers of propylene, and non-cellular, differing from the cellular characteristics of 392119. Confirm whether the product is made of plastic? Is it in the form of plate, sheet, film or foil? Is it cellular plastic? Is it combined with other materials? Does it belong to 392111 or 392112?

How to determine whether a cellular plastic board is classified under 392119? First confirm that the material is plastic and in cellular form, and the form is plate, sheet, film or foil. If not combined with other materials, it should be classified under 392111; if combined with other materials, under 392112; if it does not meet the above two (such as after special treatment or irregular shape), then under 392119. What is the main difference between 392119 and 392190? 392119 is for cellular plastics, and 392190 is for non-cellular plastics. The key difference is whether the plastic is foamed. When declaring, it is necessary to clearly indicate 'cellular' or 'non-cellular' to avoid classification errors. How should 'combined with other materials' be described when declaring? The method of combination should be specifically stated, such as 'laminated with fabric', 'composited with aluminum foil', etc. If only the surface is coated but the basic characteristics of the plastic are not changed, it may still be regarded as uncombined, and judgment should be made according to the actual process. If a cellular plastic board is cut into a specific shape, is it still classified under 392119? If cut into a shape other than rectangular, it may be regarded as an article rather than a plate, sheet, film or foil, and should be classified under heading 3925, etc. However, if only cut into rectangles, it can still be regarded as a plate, sheet, film or foil. How to check the import tariff rate for 392119? Tariff rates change. It is recommended to obtain the latest tariff rate through the official website of the General Administration of Customs, China International Trade Single Window, or professional tariff query tools by entering the HS code and conditions such as country of origin and trade mode. How to declare cellular plastic sheets sold via cross-border e-commerce? They should be declared according to actual material, cellular nature, dimensions, etc., and detailed product name and specifications should be provided. If it is a small parcel, simplified declaration may apply, but accurate classification is still required to avoid customs clearance delays caused by classification errors. Are there regulatory conditions for goods under 392119? Regulatory conditions vary depending on the specific use and material of the goods and may involve environmental protection, quality inspection, and other requirements. It is recommended to consult the Customs Import and Export Tariff of the People's Republic of China and relevant departmental regulations, or consult a professional customs broker. If a cellular plastic board is used for automotive interiors, are there special classification requirements? If it is processed into an automotive part, it may be classified under Chapter 87. But if it is only a plate, sheet, film or foil, it is still classified under 392119. Judgment should be based on whether it has the characteristics of a part.