Electronic-Grade Styrene Monomer from Mexico
Ultra-high purity electronic-grade styrene (<1 ppm metals, <5 ppb particles) used in photoresist manufacturing for semiconductor production. Still classifies under HTS 2902.50.00.00 as chemically defined styrene despite end-use purity specs. Supplied in cleanroom-compatible containers.
Duty Rate — Mexico → United States
10%
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
• Provide ICP-MS metal analysis (<0.1 ppm total metals) and particle count certification for CBP review
• Use fluoropolymer-lined containers to prevent trace contamination affecting electronic purity specs
• Comply with ITAR/EAR if destined for semiconductor fabs with defense applications