HTS 9902.11.77
Ion-exchange resin and chelating resin with an aminophosphoric functional group, polystyrene resin with aminophosphonic acid groups (CAS No. 125935-42-4) in spherical beads with a mean particle size between 0.30 and 1.20 mm (provided for in subheading 3914.00.60)
Duty under this headingFree
ProgramOther Chapter 99 provisions
As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗