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HTS 3908Polyamides in primary forms

Product or HTS code

Rate lines3

Code	Description	General	Special	Column 2	Units	Calculate
3908.10.00.00	3908.10.00.00Polyamide-6, -11, -12, -6,6, -6,9, -6,10 or -6,12General 6.3% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 15.4¢/kg + 51.5% · kg	6.3%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 51.5%	kg
3908.90	3908.90Other
3908.90.20.00	3908.90.20.00Bis(4-amino-3-methylcyclohexyl)methane- isophthalic acid-laurolactam copolymerGeneral Free · Column 2 2.2¢/kg + 33.5% · kg	Free		2.2¢/kg + 33.5%	kg
3908.90.70.00	3908.90.70.00OtherGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 2.2¢/kg + 33.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	2.2¢/kg + 33.5%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Canada18.48% of imports	Germany17.71% of imports	Switzerland8.65% of imports	Slovenia7.58% of imports	France6.33% of imports	Japan5.46% of imports	Belgium5.12% of imports	Spain5.04% of imports	Netherlands4.56% of imports	South Korea4.01% of imports
3908.10.00.00Polyamide-6, -11, -12, -6,6, -6,9, -6,10 or -6,12	16.3%9903.05.29	10%9903.05.39	12.5%9903.05.74	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.39	10%9903.05.39	10%9903.05.39	12.5%9903.05.71
3908.90.20.00Bis(4-amino-3-methylcyclohexyl)methane- isophthalic acid-laurolactam copolymer	10%9903.05.29	10%9903.05.39	12.5%9903.05.74	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.39	10%9903.05.39	10%9903.05.39	12.5%9903.05.71
3908.90.70.00Other	16.5%9903.05.29	10%9903.05.39	12.5%9903.05.74	10%9903.05.39	10%9903.05.39	12.5%9903.05.49	10%9903.05.39	10%9903.05.39	10%9903.05.39	12.5%9903.05.71

Total duty on a $10,000 ocean shipment entered 2026-10-14, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).