Desugared Black Liquor Solids from Mexico

Desugared solids recovered from spent sulfite pulping liquor, containing primarily lignin sulfonates for use in gypsum board production. HTS 3804.00.5000 includes such concentrated, chemically treated residual lyes from wood pulp manufacture.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Import Tips

Document sugar removal process to qualify as 'desugared' per heading terms

Provide lignin content certificates; minimum thresholds apply for classification

Check REACH-like compliance for EU-sourced materials