HS Code 39.08 – Polyamides in primary forms

HS code 3908 is a 4-digit heading in the Harmonized System that covers: Polyamides in primary forms. Heading 3908 is exclusively dedicated to polyamides, commonly known as nylons, in their primary forms. These synthetic polymers are characterized by repeating amide linkages (-CO-NH-) along their main chain, granting them exceptional properties such as high tensile strength, toughness, elasticity, and resistance to abrasion and many chemicals. 'Primary forms' denotes the raw, unprocessed states, including liquids, pastes, granules, powders, flakes, blocks, and lumps, ready for further manufacturing processes like molding, extrusion, or fiber spinning. This classification encompasses a wide range of polyamide types, such as Nylon 6, Nylon 6,6, Nylon 11, Nylon 12, and various co-polyamides, each engineered for specific applications. Polyamides are fundamental engineering plastics and textile fibers, vital for industries spanning automotive, electronics, textiles, and consumer goods. Accurate classification under 3908 is crucial for trade compliance, as it determines applicable duty rates, adherence to specific chemical regulations (e.g., REACH in the EU, TSCA in the US), and product safety standards. This heading is a specialized subset within Chapter 39 (Plastics and articles thereof), focusing on a distinct chemical class of polymers that serve as indispensable building blocks for a vast array of high-performance products.

Nylon 6 pellets, Nylon 6,6 granules, polyamide 11 powder, polyamide 12 chips, liquid polyamide resin, co-polyamide hot melt adhesive granules, aramid fibers (if in primary bulk forms like short staple for spinning), polyamide molding compounds, glass-filled nylon 6,6 pellets, flame-retardant polyamide granules, bio-based polyamide pellets, high-temperature polyamide resin, transparent polyamide granules, nylon 6/12 copolymer pellets, polyamide 6,10 pellets, polyamide 4,6 granules, impact-modified polyamide 6, Nylon 6,6 solution, recycled polyamide chips, polyamide film-grade pellets, polyamide for extrusion, polyamide for injection molding, polyamide resin for coatings.

A common mistake is confusing polyamides with other engineering plastics like those in 3907 (Polyesters, Polycarbonates) due to similar end-use applications (e.g., automotive, electronics). Precise chemical identification is essential to avoid this. Another misclassification risk is defaulting to 3906 ('Other primary plastics') if the specific type of polyamide (e.g., Nylon 6,6) is not clearly identified, which can lead to incorrect duty assessments. Furthermore, if polyamide is processed beyond primary forms into a basic yarn, even if still a raw material for textiles, it would fall under Chapter 54 (Synthetic filament yarn), not 3908. The distinction between 'primary forms' and 'yarn' is critical.

In 2025, the top exporters of HS code 3908 in UN Comtrade data were Germany ($2.6B, 18% of world exports), the United States ($2.3B) and China ($2.1B). World exports came to about $14.2B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

In 2025, the top importers of HS code 3908 in UN Comtrade data were Germany ($1.7B, 11% of world imports), China ($1.6B) and Italy ($820M). World imports came to about $14.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

HS code 3908 is a 4-digit heading under Chapter 39 of the Harmonized System. The first 2 digits (39) identify the chapter, and digits 3-4 (08) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.