Styrene Oxide from Canada
Styrene oxide contains a three-membered epoxide ring attached to a benzene ring, used as an intermediate in pharmaceutical synthesis and polymer modifiers. Under HTS 2910.90.91.00 as an other epoxy compound with a three-membered ring, it fits chapter scope for chemically defined organics. Its reactivity necessitates careful handling during import.
Duty Rate — Canada → United States
14.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• FDA import alerts common for styrene derivatives; provide CoA showing <0.1% impurities; avoid water-dissolved forms per note (d) unless transport-justified