Thiourea-Formaldehyde Resin Granules from Mexico

Thiourea-formaldehyde resin in granular primary form, a sulfur analog of urea resins used in specialty adhesives and ion-exchange resins. It qualifies for HTS 3909.10.00.00 as explicitly named thiourea resins in primary forms. Less common than urea types but valued for chemical resistance.

Duty Rate — Mexico → United States

16.5%

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

Include technical data sheets confirming thiourea base; comply with TSCA registration for new chemical imports; test for formaldehyde emissions to meet EPA standards post-import