</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Desugared Calcium Lignosulfonate Flakes from Canada

Flaked calcium lignosulfonate with reduced sugar content from softwood sulfite process, used in ceramics as binder and in water treatment as flocculant. HTS 3804.00.10.00 covers this chemically treated (desugared) lignin sulfonic acid salt.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Submit HPLC analysis showing <2% reducing sugars to qualify as 'desugared' per tariff language

Certify no tall oil contamination via solvent extraction tests

Package in moisture-proof bags; humidity absorption can alter physical form and tariff treatment