High Purity PFOS-K for Research Use from Japan
Ultra-high purity (>99.5%) potassium perfluorooctane sulfonate for laboratory and research applications. Classified under HTS 2904.34.00.00 as it is a separate chemically defined compound per Chapter 29 note (a). Physical form (powder, crystal) does not affect heading.
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
• Include end-use statement for research exemption from some PFAS bans; provide analytical certificates (HPLC, NMR)
• Small quantities still require full chemical declaration