Polonium-208 Mixture from China
Polonium-208 isotopic mixture with carriers for neutron initiator research and development. Mixtures containing listed Polonium-208 with dominant radioactivity classify under HTS 2844.42.00.00. R&D quantities typically.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• R&D exemption application with peer-reviewed protocol
• Isotopic ratio declaration critical; specify Po-208/Po-209 ratio
• Small quantity exemption may apply (<100 μCi); verify thresholds