HS Code for Polyacetal

Polyacetals, also known as polyoxymethylene (POM), are classified under HS code 3907.10. This classification is situated within Chapter 39, which governs plastics and articles thereof. Specifically, heading 3907 covers polyacetals, other polyethers, and epoxide resins in primary forms. The term "primary forms" is defined by Note 6 to Chapter 39, referring to liquids, pastes, blocks, irregular shapes, lumps, powders, granules, flakes, and similar bulk forms. Polyacetals are high-performance engineering thermoplastics characterized by high strength, hardness, and rigidity. The classification is determined by the chemical structure of the polymer, where the repeating unit is an acetal group. As long as the material has not been further processed into semi-finished products like rods or finished parts, it remains under 3907.10.

Products Included

• Polyoxymethylene (POM) granules
• Polyacetal homopolymer resins
• Polyacetal copolymer pellets
• Unmodified polyacetal powder
• Lubricated or glass-filled polyacetal in primary forms

Common Misclassification

Polyacetals are often misclassified under HS code 3916.90 or 3920.99 when they have been extruded into rods, tubes, or sheets. HS code 3907.10 is strictly for primary forms; once the material has a specific profile or shape, it moves to the headings for semi-manufactures. Additionally, it may be confused with other polyethers under 3907.20 if the chemical composition is not clearly identified as an acetal polymer. Accurate technical data sheets are required to distinguish POM from other engineering resins.

FAQ

What is the HS code for Polyacetal?

The HS code for polyacetal in primary forms, such as granules or pellets, is 3907.10.

Are finished polyacetal gears classified here?

No, finished articles made of polyacetal, such as gears or bearings, are classified according to their function or under 3926.90 as other articles of plastics.