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3913 Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms

Harmonized Tariff Schedule · MFN rates · Chapter 39, Plastics and articles thereof

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3913.10 Polymers, natural; alginic acid, its salts and esters, in primary forms

  • 3913.10.00.00 Alginic acid, its salts and esters4.2%

3913.90 Polymers, natural and modified natural; in primary forms (excluding alginic acid, its salts and esters)

  • 3913.90.10.00 Chemical derivatives of natural rubberFree
  • Polysaccharides and their derivatives
  • 3913.90.20.15 Xanthan gum5.8%
  • 3913.90.20.90 Other5.8%
  • 3913.90.50.00 Other6.5%

MFN rates from the Harmonized Tariff Schedule as published, without preferences, quotas, trade remedies or additional measures. Inferred works those out for each product and origin. Whether a product from this heading qualifies for a lower rate depends on each agreement's product-specific rule for it, under the agreements we cover.

Every line in chapter 39