HTS Lookup
3913
Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms:
Duty rates
A lookup result is not a customs classification ruling. Special-rate program codes are defined in the official HTS General Notes on hts.usitc.gov.
Official sourceU.S. International Trade Commission
Continue on hts.usitc.gov