3913.90.20/Guar Gum Powder/Mexico

Guar Gum Powder from Mexico

Guar gum, extracted from guar beans, is a galactomannan polysaccharide used as a natural thickener in hydraulic fracturing and food. Classified in HTS 3913.90.20 as a natural polysaccharide derivative in primary powder form.

Duty Rate — Mexico → United States

15.8%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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Import Tips

• Galactomannan content analysis confirms polysaccharide status

• Differentiate native vs derivatized grades in entry docs

• Bulk shipments for industrial use must specify primary form to avoid 3505