Tariff reference › Chapter 99 › 9902.11.31
HTS 9902.11.31 — Micro-porous, ultrafine, spherical polyamide powders of polyamide 6 (CAS No. 356040-79-4), polyamide-12 (CAS No. 338462-62-7) and polyamide 6, 12 (CAS No. 356040-89-6) (provided for in subheading 3908.10.00 or 3908.90.70)
The current US import duty for Micro-porous, ultrafine, spherical polyamide powders of polyamide 6 (CAS No. 356040-79-4), polyamide-12 (CAS No. 338462-62-7) and polyamide 6, 12 (CAS No. 356040-89-6) (provided for in subheading 3908.10.00 or 3908.90.70) (HTS 9902.11.31) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Micro-porous, ultrafine, spherical polyamide powders of polyamide 6 (CAS No. 356040-79-4), polyamide-12 (CAS No. 338462-62-7) and polyamide 6, 12 (CAS No. 356040-89-6) (provided for in subheading 3908.10.00 or 3908.90.70)
Current US duty rate
| Column 1 (General / MFN) | Free |
|---|---|
| Special (FTA programs) | No change |
| Column 2 (other) | No change |
No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.
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Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=9902.11.31&origin=&value=. Current as of USITC 2026HTSRev10 (synced 2026-06-12).