Amberlite IR-120 Strong Acid Cation Resin from Mexico
Amberlite IR-120 is a gel-type strong acid cation exchange resin based on styrene-divinylbenzene copolymer, used in demineralization processes. Classified under 3914.00.60.00 as 'Other' ion-exchangers in primary forms from polymers like those in 3903. It complies with subheading notes requiring predominant monomer content.
Duty Rate — Mexico → United States
13.9%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide lab analysis proving sulfonic acid functionalization for ion-exchange; label as primary form, not fabricated article
• Avoid pitfall of declaring as 'household' item which could shift to 3924
• Check for special free rates if fittings attached, per US notes