High-Purity Paraformaldehyde 99% for Electronics from Japan
99% paraformaldehyde powder for cleanroom use in electronics manufacturing provides ultra-low metal impurities for advanced resin systems in semiconductor packaging. Falls under HTS 2912.60.00.00 as chemically defined aldehyde polymer per Chapter 29 requirements. Exceptional purity supports microelectronics adhesive and encapsulation applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• ICP-MS analysis certificates required showing <1ppm heavy metals for electronics classification support
• ESD-safe and cleanroom packaging mandatory (Class 1000 minimum) for microelectronics end use
• Particle size distribution documentation (D50 <10μm) prevents resin finishing compound misclassification