Polyetherimide High-Temp Sheets from Mexico
Noncellular polyetherimide (PEI) sheets for high-temperature aerospace and electronics applications. HTS 3920.99.5000 covers these engineering plastic sheets meeting ≥95% PEI polymer content requirements. Exceptional thermal performance.
Duty Rate — Mexico → United States
15.8%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide glass transition temperature specs (Tg>216°C) confirming PEI grade; include REACH/RoHS certs for electronics end-use
• Declare exact CTE values for thermal expansion verification