Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds
Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products: > Radioactive elements and isotopes and compounds other than those of subheading 2844.10, 2844.20 or 2844.30; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues: > Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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
Products classified under HTS 2844.42.00.00
Actinium-225 Chloride
Actinium-225 chloride is a chemically defined compound of the radioactive isotope Actinium-225, used primarily in targeted alpha therapy for cancer treatment. It falls under HTS 2844.42.00.00 as a compound of a specified radioactive element listed in the subheading. This highly radioactive material requires specialized handling and licensing for import.
Uranium-230 Nitrate Solution
Uranium-230 nitrate is a chemically defined aqueous solution of the rare alpha-emitter Uranium-230, used in radiopharmaceutical research and geochronology. Falls under HTS 2844.42.00.00 as a compound of explicitly listed Uranium-230. Mixtures maintain classification if radioactivity dominates.
Curium-242 Ceramic Pellet
Curium-242 ceramic pellets serve as radioisotope thermoelectric generator (RTG) fuel elements for deep space missions. This ceramic product of listed Curium-242 qualifies under HTS 2844.42.00.00 due to explicit inclusion and high specific radioactivity. NASA-qualified material.
Einsteinium-254 Alloy Dispersion
Einsteinium-254 alloy dispersion in platinum matrix serves ultra-trace analysis and nuclear forensics applications. HTS 2844.42.00.00 explicitly includes Einsteinium-254 alloys as dispersions containing listed isotopes. Extreme rarity requires authorized users only.
Polonium-209 Ceramic Product
Polonium-209 ceramic beads embedded in beryllium oxide matrix function as portable neutron sources for oil well logging. Covered by HTS 2844.42.00.00 as ceramic products containing listed Polonium-209. Designed for high-temperature well logging tools.
Radium-223 Generator Mixture
Radium-223 generator mixture contains parent-daughter isotopes for on-site Actinium-225 production in clinical settings. HTS 2844.42.00.00 includes mixtures containing listed Radium-223 compounds with >74 Bq/g activity. FDA-regulated for therapeutic use.
Uranium-232 Metal Foil
Uranium-232 metal foil serves as calibration source for high-energy gamma spectroscopy due to intense daughter emissions. Pure metallic form of listed Uranium-232 classifies under HTS 2844.42.00.00. Thin foil encapsulation standard.
Curium-241 Dispersion Cermet
Curium-241 cermet dispersion in refractory metal matrix used for alpha spectroscopy standards and actinide research. HTS 2844.42.00.00 explicitly names Curium-241 compounds and cermets. High purity isotopic material.
Actinium-227 Alloy
Actinium-227 alloy with lanthanide stabilizers maintains prototype generator systems for medical isotope production. Alloy form containing listed Actinium-227 falls under HTS 2844.42.00.00. Long-lived parent for Ac-225 generators.
Polonium-208 Mixture
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.
Curium-244 Oxide Powder
Curium-244 oxide is a powdered ceramic compound of the transuranic radioactive isotope Curium-244, utilized in research for space power systems and nuclear batteries. Classified under HTS 2844.42.00.00 due to explicit inclusion of Curium-244 compounds and its ceramic product form. It exhibits high specific radioactivity exceeding regulatory thresholds.
Polonium-210 Metal Alloy
Polonium-210 alloy is a dispersion of the alpha-emitting isotope Polonium-210 in a metal matrix, applied in static eliminators for industrial manufacturing. It qualifies for HTS 2844.42.00.00 as an alloy containing a listed radioactive element with activity >74 Bq/g. The alloy form provides neutron source capabilities.
Radium-223 Cermet Dispersion
Radium-223 cermet is a ceramic-metal composite dispersion containing the alpha-emitting isotope Radium-223, developed for brachytherapy sources. Classified in HTS 2844.42.00.00 as a cermet (dispersion) of a listed radioactive element per subheading scope. Exceeds 74 Bq/g specific activity threshold.
Californium-253 Metal Target
Californium-253 metal is a high-specific-activity neutron source material shaped as a target for research reactors and calibration standards. HTS 2844.42.00.00 covers this pure metallic form of listed Californium-253 isotope. Its extreme neutron emission requires specialized encapsulation.
Gadolinium-148 Oxide
Gadolinium-148 oxide compound provides intense neutron emission for calibration and weapons effects testing. Classified under HTS 2844.42.00.00 as a compound of the specifically named Gadolinium-148 isotope. Long half-life makes it valuable for standards.