Electronic-Grade Styrene Monomer from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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